Release v1.25.2 (#1853)

Mattermost api (almost) didn't change between v6.7.x and v7.0
Everything should just work

.github/dependabot.yml

@@ -1,22 +0,0 @@
-# Docs: <https://docs.github.com/en/free-pro-team@latest/github/administering-a-repository/customizing-dependency-updates>
-
-version: 2
-
-updates:
-  - package-ecosystem: gomod
-    directory: /
-    schedule: {interval: weekly}
-    reviewers: [42wim]
-    assignees: [42wim]
-
-  - package-ecosystem: github-actions
-    directory: /
-    schedule: {interval: weekly}
-    reviewers: [42wim]
-    assignees: [42wim]
-
-  - package-ecosystem: docker
-    directory: /
-    schedule: {interval: weekly}
-    reviewers: [42wim]
-    assignees: [42wim]

Dockerfile_whatsappmulti

@@ -0,0 +1,14 @@
+FROM alpine AS builder
+
+COPY . /go/src/matterbridge
+RUN apk --no-cache add go git \
+        && cd /go/src/matterbridge \
+        && CGO_ENABLED=0 go build -tags whatsappmulti -mod vendor -ldflags "-X github.com/42wim/matterbridge/version.GitHash=$(git log --pretty=format:'%h' -n 1)" -o /bin/matterbridge
+
+FROM alpine
+RUN apk --no-cache add ca-certificates mailcap
+COPY --from=builder /bin/matterbridge /bin/matterbridge
+RUN mkdir /etc/matterbridge \
+  && touch /etc/matterbridge/matterbridge.toml \
+  && ln -sf /matterbridge.toml /etc/matterbridge/matterbridge.toml
+ENTRYPOINT ["/bin/matterbridge", "-conf", "/etc/matterbridge/matterbridge.toml"]

README.md

@@ -58,21 +58,22 @@ And more...
     - [Binaries](#binaries)
     - [Packages](#packages)
   - [Building](#building)
+  - [Building with whatsapp (beta) multidevice support](#building-with-whatsapp-beta-multidevice-support)
   - [Configuration](#configuration)
     - [Basic configuration](#basic-configuration)
     - [Settings](#settings)
     - [Advanced configuration](#advanced-configuration)
-    - [Examples](#examples)
-      - [Bridge mattermost (off-topic) - irc (#testing)](#bridge-mattermost-off-topic---irc-testing)
-      - [Bridge slack (#general) - discord (general)](#bridge-slack-general---discord-general)
-  - [Running](#running)
-    - [Docker](#docker)
-    - [Systemd](#systemd)
-  - [Changelog](#changelog)
-  - [FAQ](#faq)
-  - [Related projects](#related-projects)
-  - [Articles / Tutorials](#articles--tutorials)
-  - [Thanks](#thanks)
+      - [Examples](#examples)
+        - [Bridge mattermost (off-topic) - irc (#testing)](#bridge-mattermost-off-topic---irc-testing)
+        - [Bridge slack (#general) - discord (general)](#bridge-slack-general---discord-general)
+    - [Running](#running)
+      - [Docker](#docker)
+      - [Systemd](#systemd)
+    - [Changelog](#changelog)
+    - [FAQ](#faq)
+    - [Related projects](#related-projects)
+    - [Articles / Tutorials](#articles--tutorials)
+    - [Thanks](#thanks)
 
 ## Features
 
@@ -89,6 +90,7 @@ And more...
 
 - [Discord](https://discordapp.com)
 - [Gitter](https://gitter.im)
+- [Harmony](https://harmonyapp.io)
 - [IRC](http://www.mirc.com/servers.html)
 - [Keybase](https://keybase.io)
 - [Matrix](https://matrix.org)
@@ -105,6 +107,8 @@ And more...
 - [Twitch](https://twitch.tv)
 - [VK](https://vk.com/)
 - [WhatsApp](https://www.whatsapp.com/)
+  - Whatsapp legacy is natively supported
+  - Whatsapp multidevice beta is natively supported but you need to build yourself, see [here](#building-with-whatsapp-beta-multidevice-support)
 - [XMPP](https://xmpp.org)
 - [Zulip](https://zulipchat.com)
 
@@ -120,6 +124,8 @@ And more...
 - [Counter-Strike, half-life and more](https://forums.alliedmods.net/showthread.php?t=319430)
 - [MatterAMXX](https://github.com/GabeIggy/MatterAMXX)
 - [Vintage Story](https://github.com/NikkyAI/vs-matterbridge)
+- [Ultima Online Emulator](https://github.com/kuoushi/ServUO-Matterbridge)
+- [Teamspeak](https://github.com/Archeb/ts-matterbridge)
 
 ### API
 
@@ -138,6 +144,8 @@ Used by the projects below. Feel free to make a PR to add your project to this l
 - [matterbabble](https://github.com/DeclanHoare/matterbabble) (Discourse support)
 - [MatterAMXX](https://forums.alliedmods.net/showthread.php?t=319430) (Counter-Strike, half-life and more via AMXX mod)
 - [Vintage Story](https://github.com/NikkyAI/vs-matterbridge)
+- [ServUO-matterbridge](https://github.com/kuoushi/ServUO-Matterbridge) (A matterbridge connector for ServUO servers)
+- [ts-matterbridge](https://github.com/Archeb/ts-matterbridge) (Integrate teamspeak chat with matterbridge)
 
 ## Chat with us
 
@@ -164,10 +172,10 @@ See <https://github.com/42wim/matterbridge/wiki>
 
 ### Binaries
 
-- Latest stable release [v1.24.0](https://github.com/42wim/matterbridge/releases/latest)
+- Latest stable release [v1.25.2](https://github.com/42wim/matterbridge/releases/latest)
 - Development releases (follows master) can be downloaded [here](https://github.com/42wim/matterbridge/actions) selecting the latest green build and then artifacts.
 
-To install or upgrade just download the latest [binary](https://github.com/42wim/matterbridge/releases/latest). On \*nix platforms you may need to make the binary executable - you can do this by running `chmod a+x` on the binary (example: `chmod a+x matterbridge-1.20.0-linux-64bit`). After downloading (and making the binary executable, if necessary), follow the instructions on the [howto](https://github.com/42wim/matterbridge/wiki/How-to-create-your-config) for a step by step walkthrough for creating your configuration.
+To install or upgrade just download the latest [binary](https://github.com/42wim/matterbridge/releases/latest). On \*nix platforms you may need to make the binary executable - you can do this by running `chmod a+x` on the binary (example: `chmod a+x matterbridge-1.24.1-linux-64bit`). After downloading (and making the binary executable, if necessary), follow the instructions on the [howto](https://github.com/42wim/matterbridge/wiki/How-to-create-your-config) for a step by step walkthrough for creating your configuration.
 
 ### Packages
 
@@ -182,6 +190,11 @@ Most people just want to use binaries, you can find those [here](https://github.
 If you really want to build from source, follow these instructions:
 Go 1.17+ is required. Make sure you have [Go](https://golang.org/doc/install) properly installed.
 
+Building the binary with **all** the bridges enabled needs about 3GB RAM to compile.
+You can reduce this memory requirement to 0,5GB RAM by adding the `nomsteams` tag if you don't need/use the Microsoft Teams bridge.
+
+Matterbridge can be build without gcc/c-compiler: If you're running on windows first run `set CGO_ENABLED=0` on other platforms you prepend `CGO_ENABLED=0` to the `go build` command. (eg `CGO_ENABLED=0 go install github.com/42wim/matterbridge`)
+
 To install the latest stable run:
 
 ```bash
@@ -194,6 +207,38 @@ To install the latest dev run:
 go install github.com/42wim/matterbridge@master
 ```
 
+To install the latest stable run without msteams or zulip bridge:
+
+```bash
+go install -tags nomsteams,nozulip github.com/42wim/matterbridge
+```
+
+You should now have matterbridge binary in the ~/go/bin directory:
+
+```bash
+$ ls ~/go/bin/
+matterbridge
+```
+
+## Building with whatsapp (beta) multidevice support
+
+Because the library we use for Whatsapp multidevice support includes a GPL3 library we can not provide you binaries.
+(as this would require the Matterbridge to change it license to GPL)
+
+Matterbridge can be build without gcc/c-compiler: If you're running on windows first run `set CGO_ENABLED=0` on other platforms you prepend `CGO_ENABLED=0` to the `go build` command. (eg `CGO_ENABLED=0 go install github.com/42wim/matterbridge`)
+
+So this means you have to build it yourself using the instructions below:
+
+```bash
+go install -tags whatsappmulti github.com/42wim/matterbridge@master
+```
+
+If you're low on memory and don't need msteams:
+
+```bash
+go install -tags nomsteams,whatsappmulti github.com/42wim/matterbridge@master
+```
+
 You should now have matterbridge binary in the ~/go/bin directory:
 
 ```bash
@@ -323,6 +368,8 @@ See [FAQ](https://github.com/42wim/matterbridge/wiki/FAQ)
 - [nextcloud talk](https://github.com/nextcloud/talk_matterbridge) (Integrates matterbridge in Nextcloud Talk)
 - [mattercraft](https://github.com/raws/mattercraft) (Minecraft bridge)
 - [vs-matterbridge](https://github.com/NikkyAI/vs-matterbridge) (Vintage Story bridge)
+- [ServUO-matterbridge](https://github.com/kuoushi/ServUO-Matterbridge) (A matterbridge connector for ServUO servers)
+- [ts-matterbridge](https://github.com/Archeb/ts-matterbridge) (Integrate teamspeak chat with matterbridge)
 
 ## Articles / Tutorials
 
@@ -356,6 +403,7 @@ Matterbridge wouldn't exist without these libraries:
 - gops - <https://github.com/google/gops>
 - gozulipbot - <https://github.com/ifo/gozulipbot>
 - gumble - <https://github.com/layeh/gumble>
+- harmony - <https://github.com/harmony-development/shibshib>
 - irc - <https://github.com/lrstanley/girc>
 - keybase - <https://github.com/keybase/go-keybase-chat-bot>
 - matrix - <https://github.com/matrix-org/gomatrix>
@@ -363,6 +411,7 @@ Matterbridge wouldn't exist without these libraries:
 - msgraph.go - <https://github.com/yaegashi/msgraph.go>
 - mumble - <https://github.com/layeh/gumble>
 - nctalk - <https://github.com/gary-kim/go-nc-talk>
+- rocketchat - <https://github.com/RocketChat/Rocket.Chat.Go.SDK>
 - slack - <https://github.com/nlopes/slack>
 - sshchat - <https://github.com/shazow/ssh-chat>
 - steam - <https://github.com/Philipp15b/go-steam>
@@ -370,6 +419,7 @@ Matterbridge wouldn't exist without these libraries:
 - tengo - <https://github.com/d5/tengo>
 - vk - <https://github.com/SevereCloud/vksdk>
 - whatsapp - <https://github.com/Rhymen/go-whatsapp>
+- whatsapp - <https://github.com/tulir/whatsmeow>
 - xmpp - <https://github.com/mattn/go-xmpp>
 - zulip - <https://github.com/ifo/gozulipbot>
 

bridge/discord/discord.go

@@ -10,8 +10,8 @@ import (
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/bridge/discord/transmitter"
 	"github.com/42wim/matterbridge/bridge/helper"
+	"github.com/bwmarrin/discordgo"
 	lru "github.com/hashicorp/golang-lru"
-	"github.com/matterbridge/discordgo"
 )
 
 const (
@@ -83,12 +83,12 @@ func (b *Bdiscord) Connect() error {
 	b.Log.Info("Connection succeeded")
 	b.c.AddHandler(b.messageCreate)
 	b.c.AddHandler(b.messageTyping)
-	b.c.AddHandler(b.memberUpdate)
 	b.c.AddHandler(b.messageUpdate)
 	b.c.AddHandler(b.messageDelete)
 	b.c.AddHandler(b.messageDeleteBulk)
 	b.c.AddHandler(b.memberAdd)
 	b.c.AddHandler(b.memberRemove)
+	b.c.AddHandler(b.memberUpdate)
 	if b.GetInt("debuglevel") == 1 {
 		b.c.AddHandler(b.messageEvent)
 	}
@@ -272,7 +272,6 @@ func (b *Bdiscord) Send(msg config.Message) (string, error) {
 	// Handle prefix hint for unthreaded messages.
 	if msg.ParentNotFound() {
 		msg.ParentID = ""
-		msg.Text = fmt.Sprintf("[thread]: %s", msg.Text)
 	}
 
 	// Use webhook to send the message

bridge/discord/handlers.go

@@ -2,11 +2,15 @@ package bdiscord
 
 import (
 	"github.com/42wim/matterbridge/bridge/config"
+	"github.com/bwmarrin/discordgo"
 	"github.com/davecgh/go-spew/spew"
-	"github.com/matterbridge/discordgo"
 )
 
 func (b *Bdiscord) messageDelete(s *discordgo.Session, m *discordgo.MessageDelete) { //nolint:unparam
+	if m.GuildID != b.guildID {
+		b.Log.Debugf("Ignoring messageDelete because it originates from a different guild")
+		return
+	}
 	rmsg := config.Message{Account: b.Account, ID: m.ID, Event: config.EventMsgDelete, Text: config.EventMsgDelete}
 	rmsg.Channel = b.getChannelName(m.ChannelID)
 
@@ -17,6 +21,10 @@ func (b *Bdiscord) messageDelete(s *discordgo.Session, m *discordgo.MessageDelet
 
 // TODO(qaisjp): if other bridges support bulk deletions, it could be fanned out centrally
 func (b *Bdiscord) messageDeleteBulk(s *discordgo.Session, m *discordgo.MessageDeleteBulk) { //nolint:unparam
+	if m.GuildID != b.guildID {
+		b.Log.Debugf("Ignoring messageDeleteBulk because it originates from a different guild")
+		return
+	}
 	for _, msgID := range m.Messages {
 		rmsg := config.Message{
 			Account: b.Account,
@@ -37,6 +45,10 @@ func (b *Bdiscord) messageEvent(s *discordgo.Session, m *discordgo.Event) {
 }
 
 func (b *Bdiscord) messageTyping(s *discordgo.Session, m *discordgo.TypingStart) {
+	if m.GuildID != b.guildID {
+		b.Log.Debugf("Ignoring messageTyping because it originates from a different guild")
+		return
+	}
 	if !b.GetBool("ShowUserTyping") {
 		return
 	}
@@ -52,11 +64,15 @@ func (b *Bdiscord) messageTyping(s *discordgo.Session, m *discordgo.TypingStart)
 }
 
 func (b *Bdiscord) messageUpdate(s *discordgo.Session, m *discordgo.MessageUpdate) { //nolint:unparam
+	if m.GuildID != b.guildID {
+		b.Log.Debugf("Ignoring messageUpdate because it originates from a different guild")
+		return
+	}
 	if b.GetBool("EditDisable") {
 		return
 	}
 	// only when message is actually edited
-	if m.Message.EditedTimestamp != "" {
+	if m.Message.EditedTimestamp != nil {
 		b.Log.Debugf("Sending edit message")
 		m.Content += b.GetString("EditSuffix")
 		msg := &discordgo.MessageCreate{
@@ -67,6 +83,10 @@ func (b *Bdiscord) messageUpdate(s *discordgo.Session, m *discordgo.MessageUpdat
 }
 
 func (b *Bdiscord) messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) { //nolint:unparam
+	if m.GuildID != b.guildID {
+		b.Log.Debugf("Ignoring messageCreate because it originates from a different guild")
+		return
+	}
 	var err error
 
 	// not relay our own messages
@@ -144,6 +164,10 @@ func (b *Bdiscord) messageCreate(s *discordgo.Session, m *discordgo.MessageCreat
 }
 
 func (b *Bdiscord) memberUpdate(s *discordgo.Session, m *discordgo.GuildMemberUpdate) {
+	if m.GuildID != b.guildID {
+		b.Log.Debugf("Ignoring memberUpdate because it originates from a different guild")
+		return
+	}
 	if m.Member == nil {
 		b.Log.Warnf("Received member update with no member information: %#v", m)
 	}
@@ -171,6 +195,13 @@ func (b *Bdiscord) memberUpdate(s *discordgo.Session, m *discordgo.GuildMemberUp
 }
 
 func (b *Bdiscord) memberAdd(s *discordgo.Session, m *discordgo.GuildMemberAdd) {
+	if m.GuildID != b.guildID {
+		b.Log.Debugf("Ignoring memberAdd because it originates from a different guild")
+		return
+	}
+	if b.GetBool("nosendjoinpart") {
+		return
+	}
 	if m.Member == nil {
 		b.Log.Warnf("Received member update with no member information: %#v", m)
 		return
@@ -192,6 +223,13 @@ func (b *Bdiscord) memberAdd(s *discordgo.Session, m *discordgo.GuildMemberAdd)
 }
 
 func (b *Bdiscord) memberRemove(s *discordgo.Session, m *discordgo.GuildMemberRemove) {
+	if m.GuildID != b.guildID {
+		b.Log.Debugf("Ignoring memberRemove because it originates from a different guild")
+		return
+	}
+	if b.GetBool("nosendjoinpart") {
+		return
+	}
 	if m.Member == nil {
 		b.Log.Warnf("Received member update with no member information: %#v", m)
 		return

bridge/discord/handlers_test.go

@@ -3,7 +3,7 @@ package bdiscord
 import (
 	"testing"
 
-	"github.com/matterbridge/discordgo"
+	"github.com/bwmarrin/discordgo"
 	"github.com/stretchr/testify/assert"
 )
 

bridge/discord/helpers.go

@@ -6,7 +6,7 @@ import (
 	"strings"
 	"unicode"
 
-	"github.com/matterbridge/discordgo"
+	"github.com/bwmarrin/discordgo"
 )
 
 func (b *Bdiscord) getAllowedMentions() *discordgo.MessageAllowedMentions {

bridge/discord/transmitter/transmitter.go

@@ -20,7 +20,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/matterbridge/discordgo"
+	"github.com/bwmarrin/discordgo"
 	log "github.com/sirupsen/logrus"
 )
 

bridge/discord/transmitter/utils.go

@@ -1,7 +1,7 @@
 package transmitter
 
 import (
-	"github.com/matterbridge/discordgo"
+	"github.com/bwmarrin/discordgo"
 )
 
 // isDiscordPermissionError returns false for nil, and true if a Discord RESTError with code discordgo.ErrorCodeMissionPermissions

bridge/discord/webhook.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/bridge/helper"
-	"github.com/matterbridge/discordgo"
+	"github.com/bwmarrin/discordgo"
 )
 
 // shouldMessageUseWebhooks checks if have a channel specific webhook, if we're not using auto webhooks
@@ -89,7 +89,7 @@ func (b *Bdiscord) webhookSend(msg *config.Message, channelID string) (*discordg
 				&discordgo.WebhookParams{
 					Username:        msg.Username,
 					AvatarURL:       msg.Avatar,
-					File:            &file,
+					Files:           []*discordgo.File{&file},
 					Content:         content,
 					AllowedMentions: b.getAllowedMentions(),
 				},

bridge/irc/charset.go

@@ -0,0 +1,32 @@
+package birc
+
+import (
+	"golang.org/x/text/encoding"
+	"golang.org/x/text/encoding/japanese"
+	"golang.org/x/text/encoding/korean"
+	"golang.org/x/text/encoding/simplifiedchinese"
+	"golang.org/x/text/encoding/traditionalchinese"
+	"golang.org/x/text/encoding/unicode"
+)
+
+var encoders = map[string]encoding.Encoding{
+	"utf-8":       unicode.UTF8,
+	"iso-2022-jp": japanese.ISO2022JP,
+	"big5":        traditionalchinese.Big5,
+	"gbk":         simplifiedchinese.GBK,
+	"euc-kr":      korean.EUCKR,
+	"gb2312":      simplifiedchinese.HZGB2312,
+	"shift-jis":   japanese.ShiftJIS,
+	"euc-jp":      japanese.EUCJP,
+	"gb18030":     simplifiedchinese.GB18030,
+}
+
+func toUTF8(from string, input string) string {
+	enc, ok := encoders[from]
+	if !ok {
+		return input
+	}
+
+	res, _ := enc.NewDecoder().String(input)
+	return res
+}

bridge/irc/handlers.go

@@ -11,7 +11,6 @@ import (
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/bridge/helper"
 	"github.com/lrstanley/girc"
-	"github.com/missdeer/golib/ic"
 	"github.com/paulrosania/go-charset/charset"
 	"github.com/saintfish/chardet"
 
@@ -24,12 +23,12 @@ func (b *Birc) handleCharset(msg *config.Message) error {
 	if b.GetString("Charset") != "" {
 		switch b.GetString("Charset") {
 		case "gbk", "gb18030", "gb2312", "big5", "euc-kr", "euc-jp", "shift-jis", "iso-2022-jp":
-			msg.Text = ic.ConvertString("utf-8", b.GetString("Charset"), msg.Text)
+			msg.Text = toUTF8(b.GetString("Charset"), msg.Text)
 		default:
 			buf := new(bytes.Buffer)
 			w, err := charset.NewWriter(b.GetString("Charset"), buf)
 			if err != nil {
-				b.Log.Errorf("charset from utf-8 conversion failed: %s", err)
+				b.Log.Errorf("charset to utf-8 conversion failed: %s", err)
 				return err
 			}
 			fmt.Fprint(w, msg.Text)
@@ -227,7 +226,7 @@ func (b *Birc) handlePrivMsg(client *girc.Client, event girc.Event) {
 	}
 	switch mycharset {
 	case "gbk", "gb18030", "gb2312", "big5", "euc-kr", "euc-jp", "shift-jis", "iso-2022-jp":
-		rmsg.Text = ic.ConvertString("utf-8", b.GetString("Charset"), rmsg.Text)
+		rmsg.Text = toUTF8(b.GetString("Charset"), rmsg.Text)
 	default:
 		r, err := charset.NewReader(mycharset, strings.NewReader(rmsg.Text))
 		if err != nil {

bridge/irc/irc.go

@@ -362,8 +362,10 @@ func (b *Birc) skipPrivMsg(event girc.Event) bool {
 		return true
 	}
 	// don't forward message from ourself
-	if event.Source.Name == b.Nick {
-		return true
+	if event.Source != nil {
+		if event.Source.Name == b.Nick {
+			return true
+		}
 	}
 	// don't forward messages we sent via RELAYMSG
 	if relayedNick, ok := event.Tags.Get("draft/relaymsg"); ok && relayedNick == b.Nick {

bridge/matrix/helpers.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 	"time"
 
-	matrix "github.com/matrix-org/gomatrix"
+	matrix "github.com/matterbridge/gomatrix"
 )
 
 func newMatrixUsername(username string) *matrixUsername {

bridge/matrix/matrix.go

@@ -12,7 +12,7 @@ import (
 	"github.com/42wim/matterbridge/bridge"
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/bridge/helper"
-	matrix "github.com/matrix-org/gomatrix"
+	matrix "github.com/matterbridge/gomatrix"
 )
 
 var (
@@ -428,12 +428,15 @@ func (b *Bmatrix) handleReply(ev *matrix.Event, rmsg config.Message) bool {
 	}
 
 	body := rmsg.Text
-	for strings.HasPrefix(body, "> ") {
-		lineIdx := strings.IndexRune(body, '\n')
-		if lineIdx == -1 {
-			body = ""
-		} else {
-			body = body[(lineIdx + 1):]
+
+	if !b.GetBool("keepquotedreply") {
+		for strings.HasPrefix(body, "> ") {
+			lineIdx := strings.IndexRune(body, '\n')
+			if lineIdx == -1 {
+				body = ""
+			} else {
+				body = body[(lineIdx + 1):]
+			}
 		}
 	}
 

bridge/mattermost/helpers.go

@@ -183,6 +183,7 @@ func (b *Bmattermost) sendWebhook(msg config.Message) (string, error) {
 	if b.GetBool("PrefixMessagesWithNick") {
 		msg.Text = msg.Username + msg.Text
 	}
+
 	if msg.Extra != nil {
 		// this sends a message only if we received a config.EVENT_FILE_FAILURE_SIZE
 		for _, rmsg := range helper.HandleExtra(&msg, b.General) {
@@ -206,7 +207,7 @@ func (b *Bmattermost) sendWebhook(msg config.Message) (string, error) {
 			for _, f := range msg.Extra["file"] {
 				fi := f.(config.FileInfo)
 				if fi.URL != "" {
-					msg.Text += fi.URL
+					msg.Text += " " + fi.URL
 				}
 			}
 		}

bridge/mattermost/mattermost.go

@@ -52,7 +52,7 @@ func (b *Bmattermost) Connect() error {
 		return nil
 	}
 
-	if strings.HasPrefix(b.getVersion(), "6.") {
+	if strings.HasPrefix(b.getVersion(), "6.") || strings.HasPrefix(b.getVersion(), "7.") {
 		if !b.v6 {
 			b.v6 = true
 		}

bridge/mumble/codec.go

@@ -0,0 +1,70 @@
+package bmumble
+
+import (
+	"fmt"
+
+	"layeh.com/gumble/gumble"
+)
+
+// This is a dummy implementation of a Gumble audio codec which claims
+// to implement Opus, but does not actually do anything.  This serves
+// as a workaround until https://github.com/layeh/gumble/pull/61 is
+// merged.
+// See https://github.com/42wim/matterbridge/issues/1750 for details.
+
+const (
+	audioCodecIDOpus = 4
+)
+
+func registerNullCodecAsOpus() {
+	codec := &NullCodec{
+		encoder: &NullAudioEncoder{},
+		decoder: &NullAudioDecoder{},
+	}
+	gumble.RegisterAudioCodec(audioCodecIDOpus, codec)
+}
+
+type NullCodec struct {
+	encoder *NullAudioEncoder
+	decoder *NullAudioDecoder
+}
+
+func (c *NullCodec) ID() int {
+	return audioCodecIDOpus
+}
+
+func (c *NullCodec) NewEncoder() gumble.AudioEncoder {
+	e := &NullAudioEncoder{}
+	return e
+}
+
+func (c *NullCodec) NewDecoder() gumble.AudioDecoder {
+	d := &NullAudioDecoder{}
+	return d
+}
+
+type NullAudioEncoder struct{}
+
+func (e *NullAudioEncoder) ID() int {
+	return audioCodecIDOpus
+}
+
+func (e *NullAudioEncoder) Encode(pcm []int16, mframeSize, maxDataBytes int) ([]byte, error) {
+	return nil, fmt.Errorf("not implemented")
+}
+
+func (e *NullAudioEncoder) Reset() {
+}
+
+type NullAudioDecoder struct{}
+
+func (d *NullAudioDecoder) ID() int {
+	return audioCodecIDOpus
+}
+
+func (d *NullAudioDecoder) Decode(data []byte, frameSize int) ([]int16, error) {
+	return nil, fmt.Errorf("not implemented")
+}
+
+func (d *NullAudioDecoder) Reset() {
+}

bridge/mumble/mumble.go

@@ -185,6 +185,7 @@ func (b *Bmumble) doConnect() error {
 		gumbleConfig.Password = password
 	}
 
+	registerNullCodecAsOpus()
 	client, err := gumble.DialWithDialer(new(net.Dialer), b.GetString("Server"), gumbleConfig, &b.tlsConfig)
 	if err != nil {
 		return err

bridge/slack/handlers.go

@@ -282,6 +282,13 @@ func (b *Bslack) handleStatusEvent(ev *slack.MessageEvent, rmsg *config.Message)
 	return false
 }
 
+func getMessageTitle(attach *slack.Attachment) string {
+	if attach.TitleLink != "" {
+		return fmt.Sprintf("[%s](%s)\n", attach.Title, attach.TitleLink)
+	}
+	return attach.Title
+}
+
 func (b *Bslack) handleAttachments(ev *slack.MessageEvent, rmsg *config.Message) {
 	// File comments are set by the system (because there is no username given).
 	if ev.SubType == sFileComment {
@@ -290,12 +297,15 @@ func (b *Bslack) handleAttachments(ev *slack.MessageEvent, rmsg *config.Message)
 
 	// See if we have some text in the attachments.
 	if rmsg.Text == "" {
-		for _, attach := range ev.Attachments {
+		for i, attach := range ev.Attachments {
 			if attach.Text != "" {
 				if attach.Title != "" {
-					rmsg.Text = attach.Title + "\n"
+					rmsg.Text = getMessageTitle(&ev.Attachments[i])
 				}
 				rmsg.Text += attach.Text
+				if attach.Footer != "" {
+					rmsg.Text += "\n\n" + attach.Footer
+				}
 			} else {
 				rmsg.Text = attach.Fallback
 			}

bridge/slack/helpers.go

@@ -87,6 +87,9 @@ func (b *Bslack) populateMessageWithUserInfo(ev *slack.MessageEvent, rmsg *confi
 	if user.Profile.DisplayName != "" {
 		rmsg.Username = user.Profile.DisplayName
 	}
+	if b.GetBool("UseFullName") && user.Profile.RealName != "" {
+		rmsg.Username = user.Profile.RealName
+	}
 	return nil
 }
 
@@ -124,7 +127,7 @@ var (
 	mentionRE        = regexp.MustCompile(`<@([a-zA-Z0-9]+)>`)
 	channelRE        = regexp.MustCompile(`<#[a-zA-Z0-9]+\|(.+?)>`)
 	variableRE       = regexp.MustCompile(`<!((?:subteam\^)?[a-zA-Z0-9]+)(?:\|@?(.+?))?>`)
-	urlRE            = regexp.MustCompile(`<(.*?)(\|.*?)?>`)
+	urlRE            = regexp.MustCompile(`<([^<\|]+)\|([^>]+)>`)
 	codeFenceRE      = regexp.MustCompile(`(?m)^` + "```" + `\w+$`)
 	topicOrPurposeRE = regexp.MustCompile(`(?s)(@.+) (cleared|set)(?: the)? channel (topic|purpose)(?:: (.*))?`)
 )
@@ -178,14 +181,7 @@ func (b *Bslack) replaceVariable(text string) string {
 
 // @see https://api.slack.com/docs/message-formatting#linking_to_urls
 func (b *Bslack) replaceURL(text string) string {
-	for _, r := range urlRE.FindAllStringSubmatch(text, -1) {
-		if len(strings.TrimSpace(r[2])) == 1 { // A display text separator was found, but the text was blank
-			text = strings.Replace(text, r[0], "", 1)
-		} else {
-			text = strings.Replace(text, r[0], r[1], 1)
-		}
-	}
-	return text
+	return urlRE.ReplaceAllString(text, "[${2}](${1})")
 }
 
 func (b *Bslack) replaceb0rkedMarkDown(text string) string {

bridge/slack/slack.go

@@ -321,7 +321,7 @@ func (b *Bslack) sendRTM(msg config.Message) (string, error) {
 	}
 
 	// Upload a file if it exists.
-	if msg.Extra != nil {
+	if len(msg.Extra) > 0 {
 		extraMsgs := helper.HandleExtra(&msg, b.General)
 		for i := range extraMsgs {
 			rmsg := &extraMsgs[i]
@@ -332,7 +332,7 @@ func (b *Bslack) sendRTM(msg config.Message) (string, error) {
 			}
 		}
 		// Upload files if necessary (from Slack, Telegram or Mattermost).
-		b.uploadFile(&msg, channelInfo.ID)
+		return b.uploadFile(&msg, channelInfo.ID)
 	}
 
 	// Post message.
@@ -443,7 +443,8 @@ func (b *Bslack) postMessage(msg *config.Message, channelInfo *slack.Channel) (s
 }
 
 // uploadFile handles native upload of files
-func (b *Bslack) uploadFile(msg *config.Message, channelID string) {
+func (b *Bslack) uploadFile(msg *config.Message, channelID string) (string, error) {
+	var messageID string
 	for _, f := range msg.Extra["file"] {
 		fi, ok := f.(config.FileInfo)
 		if !ok {
@@ -471,13 +472,22 @@ func (b *Bslack) uploadFile(msg *config.Message, channelID string) {
 		})
 		if err != nil {
 			b.Log.Errorf("uploadfile %#v", err)
-			return
+			return "", err
 		}
 		if res.ID != "" {
 			b.Log.Debugf("Adding file ID %s to cache with timestamp %s", res.ID, ts.String())
 			b.cache.Add("file"+res.ID, ts)
+
+			// search for message id by uploaded file in private/public channels, get thread timestamp from uploaded file
+			if v, ok := res.Shares.Private[channelID]; ok && len(v) > 0 {
+				messageID = v[0].Ts
+			}
+			if v, ok := res.Shares.Public[channelID]; ok && len(v) > 0 {
+				messageID = v[0].Ts
+			}
 		}
 	}
+	return messageID, nil
 }
 
 func (b *Bslack) prepareMessageOptions(msg *config.Message) []slack.MsgOption {

bridge/telegram/handlers.go

@@ -57,6 +57,11 @@ func (b *Btelegram) handleForwarded(rmsg *config.Message, message *tgbotapi.Mess
 		return
 	}
 
+	if message.ForwardFromChat != nil && message.ForwardFrom == nil {
+		rmsg.Text = "Forwarded from " + message.ForwardFromChat.Title + ": " + rmsg.Text
+		return
+	}
+
 	if message.ForwardFrom == nil {
 		rmsg.Text = "Forwarded from " + unknownUser + ": " + rmsg.Text
 		return
@@ -66,6 +71,9 @@ func (b *Btelegram) handleForwarded(rmsg *config.Message, message *tgbotapi.Mess
 	if b.GetBool("UseFirstName") {
 		usernameForward = message.ForwardFrom.FirstName
 	}
+	if b.GetBool("UseFullName") {
+		usernameForward = message.ForwardFrom.FirstName + " " + message.ForwardFrom.LastName
+	}
 
 	if usernameForward == "" {
 		usernameForward = message.ForwardFrom.UserName
@@ -89,6 +97,9 @@ func (b *Btelegram) handleQuoting(rmsg *config.Message, message *tgbotapi.Messag
 			if b.GetBool("UseFirstName") {
 				usernameReply = message.ReplyToMessage.From.FirstName
 			}
+			if b.GetBool("UseFullName") {
+				usernameReply = message.ReplyToMessage.From.FirstName + " " + message.ReplyToMessage.From.LastName
+			}
 			if usernameReply == "" {
 				usernameReply = message.ReplyToMessage.From.UserName
 				if usernameReply == "" {
@@ -100,7 +111,11 @@ func (b *Btelegram) handleQuoting(rmsg *config.Message, message *tgbotapi.Messag
 			usernameReply = unknownUser
 		}
 		if !b.GetBool("QuoteDisable") {
-			rmsg.Text = b.handleQuote(rmsg.Text, usernameReply, message.ReplyToMessage.Text)
+			quote := message.ReplyToMessage.Text
+			if quote == "" {
+				quote = message.ReplyToMessage.Caption
+			}
+			rmsg.Text = b.handleQuote(rmsg.Text, usernameReply, quote)
 		}
 	}
 }
@@ -112,6 +127,9 @@ func (b *Btelegram) handleUsername(rmsg *config.Message, message *tgbotapi.Messa
 		if b.GetBool("UseFirstName") {
 			rmsg.Username = message.From.FirstName
 		}
+		if b.GetBool("UseFullName") {
+			rmsg.Username = message.From.FirstName + " " + message.From.LastName
+		}
 		if rmsg.Username == "" {
 			rmsg.Username = message.From.UserName
 			if rmsg.Username == "" {
@@ -129,6 +147,9 @@ func (b *Btelegram) handleUsername(rmsg *config.Message, message *tgbotapi.Messa
 		if b.GetBool("UseFirstName") {
 			rmsg.Username = message.SenderChat.FirstName
 		}
+		if b.GetBool("UseFullName") {
+			rmsg.Username = message.SenderChat.FirstName + " " + message.SenderChat.LastName
+		}
 
 		if rmsg.Username == "" || rmsg.Username == "Channel_Bot" {
 			rmsg.Username = message.SenderChat.UserName
@@ -182,6 +203,14 @@ func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
 		rmsg.ID = strconv.Itoa(message.MessageID)
 		rmsg.Channel = strconv.FormatInt(message.Chat.ID, 10)
 
+		// preserve threading from telegram reply
+		if message.ReplyToMessage != nil {
+			rmsg.ParentID = strconv.Itoa(message.ReplyToMessage.MessageID)
+		}
+
+		// handle entities (adding URLs)
+		b.handleEntities(&rmsg, message)
+
 		// handle username
 		b.handleUsername(&rmsg, message)
 
@@ -197,11 +226,9 @@ func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
 		// quote the previous message
 		b.handleQuoting(&rmsg, message)
 
-		// handle entities (adding URLs)
-		b.handleEntities(&rmsg, message)
-
 		if rmsg.Text != "" || len(rmsg.Extra) > 0 {
-			rmsg.Text = helper.RemoveEmptyNewLines(rmsg.Text)
+			// Comment the next line out due to avoid removing empty lines in Telegram
+			// rmsg.Text = helper.RemoveEmptyNewLines(rmsg.Text)
 			// channels don't have (always?) user information. see #410
 			if message.From != nil {
 				rmsg.Avatar = helper.GetAvatar(b.avatarMap, strconv.FormatInt(message.From.ID, 10), b.General)
@@ -358,7 +385,7 @@ func (b *Btelegram) getDownloadInfo(id string, suffix string, urlpart bool) (str
 		urlPart := strings.Split(url, "/")
 		name = urlPart[len(urlPart)-1]
 	}
-	if suffix != "" && !strings.HasSuffix(name, suffix) {
+	if suffix != "" && !strings.HasSuffix(name, suffix) && !strings.HasSuffix(name, ".webm") {
 		name += suffix
 	}
 	text := " " + url
@@ -377,7 +404,7 @@ func (b *Btelegram) handleDelete(msg *config.Message, chatid int64) (string, err
 	}
 
 	cfg := tgbotapi.NewDeleteMessage(chatid, msgid)
-	_, err = b.c.Send(cfg)
+	_, err = b.c.Request(cfg)
 
 	return "", err
 }
@@ -416,8 +443,8 @@ func (b *Btelegram) handleEdit(msg *config.Message, chatid int64) (string, error
 }
 
 // handleUploadFile handles native upload of files
-func (b *Btelegram) handleUploadFile(msg *config.Message, chatid int64) string {
-	var c tgbotapi.Chattable
+func (b *Btelegram) handleUploadFile(msg *config.Message, chatid int64, parentID int) (string, error) {
+	var media []interface{}
 	for _, f := range msg.Extra["file"] {
 		fi := f.(config.FileInfo)
 		file := tgbotapi.FileBytes{
@@ -426,32 +453,42 @@ func (b *Btelegram) handleUploadFile(msg *config.Message, chatid int64) string {
 		}
 		switch filepath.Ext(fi.Name) {
 		case ".jpg", ".jpe", ".png":
-			pc := tgbotapi.NewPhoto(chatid, file)
-			pc.Caption, pc.ParseMode = TGGetParseMode(b, msg.Username, fi.Comment)
-			c = pc
+			pc := tgbotapi.NewInputMediaPhoto(file)
+			if fi.Comment != "" {
+				pc.Caption, pc.ParseMode = TGGetParseMode(b, msg.Username, fi.Comment)
+			}
+			media = append(media, pc)
 		case ".mp4", ".m4v":
-			vc := tgbotapi.NewVideo(chatid, file)
-			vc.Caption, vc.ParseMode = TGGetParseMode(b, msg.Username, fi.Comment)
-			c = vc
+			vc := tgbotapi.NewInputMediaVideo(file)
+			if fi.Comment != "" {
+				vc.Caption, vc.ParseMode = TGGetParseMode(b, msg.Username, fi.Comment)
+			}
+			media = append(media, vc)
 		case ".mp3", ".oga":
-			ac := tgbotapi.NewAudio(chatid, file)
-			ac.Caption, ac.ParseMode = TGGetParseMode(b, msg.Username, fi.Comment)
-			c = ac
+			ac := tgbotapi.NewInputMediaAudio(file)
+			if fi.Comment != "" {
+				ac.Caption, ac.ParseMode = TGGetParseMode(b, msg.Username, fi.Comment)
+			}
+			media = append(media, ac)
 		case ".ogg":
 			voc := tgbotapi.NewVoice(chatid, file)
 			voc.Caption, voc.ParseMode = TGGetParseMode(b, msg.Username, fi.Comment)
-			c = voc
+			voc.ReplyToMessageID = parentID
+			res, err := b.c.Send(voc)
+			if err != nil {
+				return "", err
+			}
+			return strconv.Itoa(res.MessageID), nil
 		default:
-			dc := tgbotapi.NewDocument(chatid, file)
-			dc.Caption, dc.ParseMode = TGGetParseMode(b, msg.Username, fi.Comment)
-			c = dc
-		}
-		_, err := b.c.Send(c)
-		if err != nil {
-			b.Log.Errorf("file upload failed: %#v", err)
+			dc := tgbotapi.NewInputMediaDocument(file)
+			if fi.Comment != "" {
+				dc.Caption, dc.ParseMode = TGGetParseMode(b, msg.Username, fi.Comment)
+			}
+			media = append(media, dc)
 		}
 	}
-	return ""
+
+	return b.sendMediaFiles(msg, chatid, parentID, media)
 }
 
 func (b *Btelegram) handleQuote(message, quoteNick, quoteMessage string) string {
@@ -480,34 +517,59 @@ func (b *Btelegram) handleEntities(rmsg *config.Message, message *tgbotapi.Messa
 	}
 
 	indexMovedBy := 0
+	prevLinkOffset := -1
 
-	// for now only do URL replacements
 	for _, e := range message.Entities {
+
+		asRunes := utf16.Encode([]rune(rmsg.Text))
+
 		if e.Type == "text_link" {
+			offset := e.Offset + indexMovedBy
 			url, err := e.ParseURL()
 			if err != nil {
 				b.Log.Errorf("entity text_link url parse failed: %s", err)
 				continue
 			}
 			utfEncodedString := utf16.Encode([]rune(rmsg.Text))
-			if e.Offset+e.Length > len(utfEncodedString) {
-				b.Log.Errorf("entity length is too long %d > %d", e.Offset+e.Length, len(utfEncodedString))
+			if offset+e.Length > len(utfEncodedString) {
+				b.Log.Errorf("entity length is too long %d > %d", offset+e.Length, len(utfEncodedString))
 				continue
 			}
-			link := utf16.Decode(utfEncodedString[e.Offset : e.Offset+e.Length])
-			rmsg.Text = strings.Replace(rmsg.Text, string(link), url.String(), 1)
+			rmsg.Text = string(utf16.Decode(asRunes[:offset+e.Length])) + " (" + url.String() + ")" + string(utf16.Decode(asRunes[offset+e.Length:]))
+			indexMovedBy += len(url.String()) + 3
+			prevLinkOffset = e.Offset
+		}
+
+		if e.Offset == prevLinkOffset {
+			continue
 		}
 
 		if e.Type == "code" {
 			offset := e.Offset + indexMovedBy
-			rmsg.Text = rmsg.Text[:offset] + "`" + rmsg.Text[offset:offset+e.Length] + "`" + rmsg.Text[offset+e.Length:]
+			rmsg.Text = string(utf16.Decode(asRunes[:offset])) + "`" + string(utf16.Decode(asRunes[offset:offset+e.Length])) + "`" + string(utf16.Decode(asRunes[offset+e.Length:]))
 			indexMovedBy += 2
 		}
 
 		if e.Type == "pre" {
 			offset := e.Offset + indexMovedBy
-			rmsg.Text = rmsg.Text[:offset] + "```\n" + rmsg.Text[offset:offset+e.Length] + "\n```" + rmsg.Text[offset+e.Length:]
+			rmsg.Text = string(utf16.Decode(asRunes[:offset])) + "```\n" + string(utf16.Decode(asRunes[offset:offset+e.Length])) + "```\n" + string(utf16.Decode(asRunes[offset+e.Length:]))
 			indexMovedBy += 8
 		}
+
+		if e.Type == "bold" {
+			offset := e.Offset + indexMovedBy
+			rmsg.Text = string(utf16.Decode(asRunes[:offset])) + "*" + string(utf16.Decode(asRunes[offset:offset+e.Length])) + "*" + string(utf16.Decode(asRunes[offset+e.Length:]))
+			indexMovedBy += 2
+		}
+		if e.Type == "italic" {
+			offset := e.Offset + indexMovedBy
+			rmsg.Text = string(utf16.Decode(asRunes[:offset])) + "_" + string(utf16.Decode(asRunes[offset:offset+e.Length])) + "_" + string(utf16.Decode(asRunes[offset+e.Length:]))
+			indexMovedBy += 2
+		}
+		if e.Type == "strike" {
+			offset := e.Offset + indexMovedBy
+			rmsg.Text = string(utf16.Decode(asRunes[:offset])) + "~" + string(utf16.Decode(asRunes[offset:offset+e.Length])) + "~" + string(utf16.Decode(asRunes[offset+e.Length:]))
+			indexMovedBy += 2
+		}
 	}
 }

bridge/telegram/telegram.go

@@ -1,6 +1,7 @@
 package btelegram
 
 import (
+	"fmt"
 	"html"
 	"log"
 	"strconv"
@@ -108,16 +109,27 @@ func (b *Btelegram) Send(msg config.Message) (string, error) {
 		return b.handleDelete(&msg, chatid)
 	}
 
+	// Handle prefix hint for unthreaded messages.
+	if msg.ParentNotFound() {
+		msg.ParentID = ""
+		msg.Text = fmt.Sprintf("[reply]: %s", msg.Text)
+	}
+
+	var parentID int
+	if msg.ParentID != "" {
+		parentID, _ = b.intParentID(msg.ParentID)
+	}
+
 	// Upload a file if it exists
 	if msg.Extra != nil {
 		for _, rmsg := range helper.HandleExtra(&msg, b.General) {
-			if _, msgErr := b.sendMessage(chatid, rmsg.Username, rmsg.Text); msgErr != nil {
+			if _, msgErr := b.sendMessage(chatid, rmsg.Username, rmsg.Text, parentID); msgErr != nil {
 				b.Log.Errorf("sendMessage failed: %s", msgErr)
 			}
 		}
 		// check if we have files to upload (from slack, telegram or mattermost)
 		if len(msg.Extra["file"]) > 0 {
-			b.handleUploadFile(&msg, chatid)
+			return b.handleUploadFile(&msg, chatid, parentID)
 		}
 	}
 
@@ -131,7 +143,7 @@ func (b *Btelegram) Send(msg config.Message) (string, error) {
 	// Ignore empty text field needs for prevent double messages from whatsapp to telegram
 	// when sending media with text caption
 	if msg.Text != "" {
-		return b.sendMessage(chatid, msg.Username, msg.Text)
+		return b.sendMessage(chatid, msg.Username, msg.Text, parentID)
 	}
 
 	return "", nil
@@ -145,10 +157,10 @@ func (b *Btelegram) getFileDirectURL(id string) string {
 	return res
 }
 
-func (b *Btelegram) sendMessage(chatid int64, username, text string) (string, error) {
+func (b *Btelegram) sendMessage(chatid int64, username, text string, parentID int) (string, error) {
 	m := tgbotapi.NewMessage(chatid, "")
 	m.Text, m.ParseMode = TGGetParseMode(b, username, text)
-
+	m.ReplyToMessageID = parentID
 	m.DisableWebPagePreview = b.GetBool("DisableWebPagePreview")
 
 	res, err := b.c.Send(m)
@@ -158,6 +170,29 @@ func (b *Btelegram) sendMessage(chatid int64, username, text string) (string, er
 	return strconv.Itoa(res.MessageID), nil
 }
 
+// sendMediaFiles native upload media files via media group
+func (b *Btelegram) sendMediaFiles(msg *config.Message, chatid int64, parentID int, media []interface{}) (string, error) {
+	if len(media) == 0 {
+		return "", nil
+	}
+	mg := tgbotapi.MediaGroupConfig{ChatID: chatid, ChannelUsername: msg.Username, Media: media, ReplyToMessageID: parentID}
+	messages, err := b.c.SendMediaGroup(mg)
+	if err != nil {
+		return "", err
+	}
+	// return first message id
+	return strconv.Itoa(messages[0].MessageID), nil
+}
+
+// intParentID return integer parent id for telegram message
+func (b *Btelegram) intParentID(parentID string) (int, error) {
+	pid, err := strconv.Atoi(parentID)
+	if err != nil {
+		return 0, err
+	}
+	return pid, nil
+}
+
 func (b *Btelegram) cacheAvatar(msg *config.Message) (string, error) {
 	fi := msg.Extra["file"][0].(config.FileInfo)
 	/* if we have a sha we have successfully uploaded the file to the media server,

bridge/vk/vk.go

@@ -64,7 +64,7 @@ func (b *Bvk) Connect() error {
 	go func() {
 		err := b.lp.Run()
 		if err != nil {
-			b.Log.Fatal("Enable longpoll in group management")
+			b.Log.WithError(err).Fatal("Enable longpoll in group management")
 		}
 	}()
 
@@ -223,7 +223,7 @@ func (b *Bvk) uploadFiles(extra map[string][]interface{}, peerID int) (string, s
 		}
 		a, err := b.uploadFile(fi, peerID)
 		if err != nil {
-			b.Log.Error("File upload error ", fi.Name)
+			b.Log.WithError(err).Error("File upload error ", fi.Name)
 		}
 
 		attachments = append(attachments, a)
@@ -237,7 +237,8 @@ func (b *Bvk) uploadFile(file config.FileInfo, peerID int) (string, error) {
 
 	photoRE := regexp.MustCompile(".(jpg|jpe|png)$")
 	if photoRE.MatchString(file.Name) {
-		p, err := b.c.UploadMessagesPhoto(peerID, r)
+		// BUG(VK): for community chat peerID=0
+		p, err := b.c.UploadMessagesPhoto(0, r)
 		if err != nil {
 			return "", err
 		}

bridge/whatsapp/handlers.go

@@ -1,3 +1,4 @@
+// nolint:goconst
 package bwhatsapp
 
 import (
@@ -134,6 +135,7 @@ func (b *Bwhatsapp) HandleTextMessage(message whatsapp.TextMessage) {
 }
 
 // HandleImageMessage sent from WhatsApp, relay it to the brige
+// nolint:funlen
 func (b *Bwhatsapp) HandleImageMessage(message whatsapp.ImageMessage) {
 	if message.Info.FromMe || message.Info.Timestamp < b.startedAt {
 		return

bridge/whatsapp/helpers.go

@@ -111,8 +111,7 @@ func (b *Bwhatsapp) getSenderName(senderJid string) string {
 	}
 
 	// try to reload this contact
-	_, err := b.conn.Contacts()
-	if err != nil {
+	if _, err := b.conn.Contacts(); err != nil {
 		b.Log.Errorf("error on update of contacts: %v", err)
 	}
 

bridge/whatsapp/whatsapp.go

@@ -40,6 +40,11 @@ type Bwhatsapp struct {
 func New(cfg *bridge.Config) bridge.Bridger {
 	number := cfg.GetString(cfgNumber)
 
+	cfg.Log.Warn("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
+	cfg.Log.Warn("This bridge is deprecated and not supported anymore. Use the new multidevice whatsapp bridge")
+	cfg.Log.Warn("See https://github.com/42wim/matterbridge#building-with-whatsapp-beta-multidevice-support for more info")
+	cfg.Log.Warn("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
+
 	if number == "" {
 		cfg.Log.Fatalf("Missing configuration for WhatsApp bridge: Number")
 	}

bridge/whatsappmulti/handlers.go

@@ -0,0 +1,344 @@
+// +build whatsappmulti
+
+package bwhatsapp
+
+import (
+	"fmt"
+	"mime"
+	"strings"
+
+	"github.com/42wim/matterbridge/bridge/config"
+	"github.com/42wim/matterbridge/bridge/helper"
+
+	"go.mau.fi/whatsmeow/binary/proto"
+	"go.mau.fi/whatsmeow/types"
+	"go.mau.fi/whatsmeow/types/events"
+)
+
+// nolint:gocritic
+func (b *Bwhatsapp) eventHandler(evt interface{}) {
+	switch e := evt.(type) {
+	case *events.Message:
+		b.handleMessage(e)
+	}
+}
+
+func (b *Bwhatsapp) handleMessage(message *events.Message) {
+	msg := message.Message
+	switch {
+	case msg == nil, message.Info.IsFromMe, message.Info.Timestamp.Before(b.startedAt):
+		return
+	}
+
+	b.Log.Infof("Receiving message %#v", msg)
+
+	switch {
+	case msg.Conversation != nil || msg.ExtendedTextMessage != nil:
+		b.handleTextMessage(message.Info, msg)
+	case msg.VideoMessage != nil:
+		b.handleVideoMessage(message)
+	case msg.AudioMessage != nil:
+		b.handleAudioMessage(message)
+	case msg.DocumentMessage != nil:
+		b.handleDocumentMessage(message)
+	case msg.ImageMessage != nil:
+		b.handleImageMessage(message)
+	}
+}
+
+// nolint:funlen
+func (b *Bwhatsapp) handleTextMessage(messageInfo types.MessageInfo, msg *proto.Message) {
+	senderJID := messageInfo.Sender
+	channel := messageInfo.Chat
+
+	senderName := b.getSenderName(messageInfo.Sender)
+	if senderName == "" {
+		senderName = "Someone" // don't expose telephone number
+	}
+
+	if msg.GetExtendedTextMessage() == nil && msg.GetConversation() == "" {
+		b.Log.Debugf("message without text content? %#v", msg)
+		return
+	}
+
+	var text string
+
+	// nolint:nestif
+	if msg.GetExtendedTextMessage() == nil {
+		text = msg.GetConversation()
+	} else {
+		text = msg.GetExtendedTextMessage().GetText()
+		ci := msg.GetExtendedTextMessage().GetContextInfo()
+
+		if senderJID == (types.JID{}) && ci.Participant != nil {
+			senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
+		}
+
+		if ci.MentionedJid != nil {
+			// handle user mentions
+			for _, mentionedJID := range ci.MentionedJid {
+				numberAndSuffix := strings.SplitN(mentionedJID, "@", 2)
+
+				// mentions comes as telephone numbers and we don't want to expose it to other bridges
+				// replace it with something more meaninful to others
+				mention := b.getSenderNotify(types.NewJID(numberAndSuffix[0], types.DefaultUserServer))
+				if mention == "" {
+					mention = "someone"
+				}
+
+				text = strings.Replace(text, "@"+numberAndSuffix[0], "@"+mention, 1)
+			}
+		}
+	}
+
+	rmsg := config.Message{
+		UserID:   senderJID.String(),
+		Username: senderName,
+		Text:     text,
+		Channel:  channel.String(),
+		Account:  b.Account,
+		Protocol: b.Protocol,
+		Extra:    make(map[string][]interface{}),
+		//      ParentID: TODO, // TODO handle thread replies  // map from Info.QuotedMessageID string
+		ID: messageInfo.ID,
+	}
+
+	if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
+		rmsg.Avatar = avatarURL
+	}
+
+	b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
+	b.Log.Debugf("<= Message is %#v", rmsg)
+
+	b.Remote <- rmsg
+}
+
+// HandleImageMessage sent from WhatsApp, relay it to the brige
+func (b *Bwhatsapp) handleImageMessage(msg *events.Message) {
+	imsg := msg.Message.GetImageMessage()
+
+	senderJID := msg.Info.Sender
+	senderName := b.getSenderName(senderJID)
+	ci := imsg.GetContextInfo()
+
+	if senderJID == (types.JID{}) && ci.Participant != nil {
+		senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
+	}
+
+	rmsg := config.Message{
+		UserID:   senderJID.String(),
+		Username: senderName,
+		Channel:  msg.Info.Chat.String(),
+		Account:  b.Account,
+		Protocol: b.Protocol,
+		Extra:    make(map[string][]interface{}),
+		ID:       msg.Info.ID,
+	}
+
+	if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
+		rmsg.Avatar = avatarURL
+	}
+
+	fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
+	if err != nil {
+		b.Log.Errorf("Mimetype detection error: %s", err)
+
+		return
+	}
+
+	// rename .jfif to .jpg https://github.com/42wim/matterbridge/issues/1292
+	if fileExt[0] == ".jfif" {
+		fileExt[0] = ".jpg"
+	}
+
+	// rename .jpe to .jpg https://github.com/42wim/matterbridge/issues/1463
+	if fileExt[0] == ".jpe" {
+		fileExt[0] = ".jpg"
+	}
+
+	filename := fmt.Sprintf("%v%v", msg.Info.ID, fileExt[0])
+
+	b.Log.Debugf("Trying to download %s with type %s", filename, imsg.GetMimetype())
+
+	data, err := b.wc.Download(imsg)
+	if err != nil {
+		b.Log.Errorf("Download image failed: %s", err)
+
+		return
+	}
+
+	// Move file to bridge storage
+	helper.HandleDownloadData(b.Log, &rmsg, filename, imsg.GetCaption(), "", &data, b.General)
+
+	b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
+	b.Log.Debugf("<= Message is %#v", rmsg)
+
+	b.Remote <- rmsg
+}
+
+// HandleVideoMessage downloads video messages
+func (b *Bwhatsapp) handleVideoMessage(msg *events.Message) {
+	imsg := msg.Message.GetVideoMessage()
+
+	senderJID := msg.Info.Sender
+	senderName := b.getSenderName(senderJID)
+	ci := imsg.GetContextInfo()
+
+	if senderJID == (types.JID{}) && ci.Participant != nil {
+		senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
+	}
+
+	rmsg := config.Message{
+		UserID:   senderJID.String(),
+		Username: senderName,
+		Channel:  msg.Info.Chat.String(),
+		Account:  b.Account,
+		Protocol: b.Protocol,
+		Extra:    make(map[string][]interface{}),
+		ID:       msg.Info.ID,
+	}
+
+	if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
+		rmsg.Avatar = avatarURL
+	}
+
+	fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
+	if err != nil {
+		b.Log.Errorf("Mimetype detection error: %s", err)
+
+		return
+	}
+
+	if len(fileExt) == 0 {
+		fileExt = append(fileExt, ".mp4")
+	}
+
+	filename := fmt.Sprintf("%v%v", msg.Info.ID, fileExt[0])
+
+	b.Log.Debugf("Trying to download %s with size %#v and type %s", filename, imsg.GetFileLength(), imsg.GetMimetype())
+
+	data, err := b.wc.Download(imsg)
+	if err != nil {
+		b.Log.Errorf("Download video failed: %s", err)
+
+		return
+	}
+
+	// Move file to bridge storage
+	helper.HandleDownloadData(b.Log, &rmsg, filename, imsg.GetCaption(), "", &data, b.General)
+
+	b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
+	b.Log.Debugf("<= Message is %#v", rmsg)
+
+	b.Remote <- rmsg
+}
+
+// HandleAudioMessage downloads audio messages
+func (b *Bwhatsapp) handleAudioMessage(msg *events.Message) {
+	imsg := msg.Message.GetAudioMessage()
+
+	senderJID := msg.Info.Sender
+	senderName := b.getSenderName(senderJID)
+	ci := imsg.GetContextInfo()
+
+	if senderJID == (types.JID{}) && ci.Participant != nil {
+		senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
+	}
+
+	rmsg := config.Message{
+		UserID:   senderJID.String(),
+		Username: senderName,
+		Channel:  msg.Info.Chat.String(),
+		Account:  b.Account,
+		Protocol: b.Protocol,
+		Extra:    make(map[string][]interface{}),
+		ID:       msg.Info.ID,
+	}
+
+	if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
+		rmsg.Avatar = avatarURL
+	}
+
+	fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
+	if err != nil {
+		b.Log.Errorf("Mimetype detection error: %s", err)
+
+		return
+	}
+
+	if len(fileExt) == 0 {
+		fileExt = append(fileExt, ".ogg")
+	}
+
+	filename := fmt.Sprintf("%v%v", msg.Info.ID, fileExt[0])
+
+	b.Log.Debugf("Trying to download %s with size %#v and type %s", filename, imsg.GetFileLength(), imsg.GetMimetype())
+
+	data, err := b.wc.Download(imsg)
+	if err != nil {
+		b.Log.Errorf("Download video failed: %s", err)
+
+		return
+	}
+
+	// Move file to bridge storage
+	helper.HandleDownloadData(b.Log, &rmsg, filename, "audio message", "", &data, b.General)
+
+	b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
+	b.Log.Debugf("<= Message is %#v", rmsg)
+
+	b.Remote <- rmsg
+}
+
+// HandleDocumentMessage downloads documents
+func (b *Bwhatsapp) handleDocumentMessage(msg *events.Message) {
+	imsg := msg.Message.GetDocumentMessage()
+
+	senderJID := msg.Info.Sender
+	senderName := b.getSenderName(senderJID)
+	ci := imsg.GetContextInfo()
+
+	if senderJID == (types.JID{}) && ci.Participant != nil {
+		senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
+	}
+
+	rmsg := config.Message{
+		UserID:   senderJID.String(),
+		Username: senderName,
+		Channel:  msg.Info.Chat.String(),
+		Account:  b.Account,
+		Protocol: b.Protocol,
+		Extra:    make(map[string][]interface{}),
+		ID:       msg.Info.ID,
+	}
+
+	if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
+		rmsg.Avatar = avatarURL
+	}
+
+	fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
+	if err != nil {
+		b.Log.Errorf("Mimetype detection error: %s", err)
+
+		return
+	}
+
+	filename := fmt.Sprintf("%v", imsg.GetFileName())
+
+	b.Log.Debugf("Trying to download %s with extension %s and type %s", filename, fileExt, imsg.GetMimetype())
+
+	data, err := b.wc.Download(imsg)
+	if err != nil {
+		b.Log.Errorf("Download document message failed: %s", err)
+
+		return
+	}
+
+	// Move file to bridge storage
+	helper.HandleDownloadData(b.Log, &rmsg, filename, "document", "", &data, b.General)
+
+	b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
+	b.Log.Debugf("<= Message is %#v", rmsg)
+
+	b.Remote <- rmsg
+}

bridge/whatsappmulti/helpers.go

@@ -0,0 +1,108 @@
+// +build whatsappmulti
+
+package bwhatsapp
+
+import (
+	"fmt"
+	"strings"
+
+	"go.mau.fi/whatsmeow/store"
+	"go.mau.fi/whatsmeow/store/sqlstore"
+	"go.mau.fi/whatsmeow/types"
+)
+
+type ProfilePicInfo struct {
+	URL    string `json:"eurl"`
+	Tag    string `json:"tag"`
+	Status int16  `json:"status"`
+}
+
+func (b *Bwhatsapp) getSenderName(senderJid types.JID) string {
+	if sender, exists := b.contacts[senderJid]; exists {
+		if sender.FullName != "" {
+			return sender.FullName
+		}
+		// if user is not in phone contacts
+		// it is the most obvious scenario unless you sync your phone contacts with some remote updated source
+		// users can change it in their WhatsApp settings -> profile -> click on Avatar
+		if sender.PushName != "" {
+			return sender.PushName
+		}
+
+		if sender.FirstName != "" {
+			return sender.FirstName
+		}
+	}
+
+	// try to reload this contact
+	if _, err := b.wc.Store.Contacts.GetAllContacts(); err != nil {
+		b.Log.Errorf("error on update of contacts: %v", err)
+	}
+
+	allcontacts, err := b.wc.Store.Contacts.GetAllContacts()
+	if err != nil {
+		b.Log.Errorf("error on update of contacts: %v", err)
+	}
+
+	if len(allcontacts) > 0 {
+		b.contacts = allcontacts
+	}
+
+	if sender, exists := b.contacts[senderJid]; exists {
+		if sender.FullName != "" {
+			return sender.FullName
+		}
+		// if user is not in phone contacts
+		// it is the most obvious scenario unless you sync your phone contacts with some remote updated source
+		// users can change it in their WhatsApp settings -> profile -> click on Avatar
+		if sender.PushName != "" {
+			return sender.PushName
+		}
+
+		if sender.FirstName != "" {
+			return sender.FirstName
+		}
+	}
+
+	return "Someone"
+}
+
+func (b *Bwhatsapp) getSenderNotify(senderJid types.JID) string {
+	if sender, exists := b.contacts[senderJid]; exists {
+		return sender.PushName
+	}
+
+	return ""
+}
+
+func (b *Bwhatsapp) GetProfilePicThumb(jid string) (*types.ProfilePictureInfo, error) {
+	pjid, _ := types.ParseJID(jid)
+	info, err := b.wc.GetProfilePictureInfo(pjid, true)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get avatar: %v", err)
+	}
+
+	return info, nil
+}
+
+func isGroupJid(identifier string) bool {
+	return strings.HasSuffix(identifier, "@g.us") ||
+		strings.HasSuffix(identifier, "@temp") ||
+		strings.HasSuffix(identifier, "@broadcast")
+}
+
+func (b *Bwhatsapp) getDevice() (*store.Device, error) {
+	device := &store.Device{}
+
+	storeContainer, err := sqlstore.New("sqlite", "file:"+b.Config.GetString("sessionfile")+".db?_foreign_keys=on&_pragma=busy_timeout=10000", nil)
+	if err != nil {
+		return device, fmt.Errorf("failed to connect to database: %v", err)
+	}
+
+	device, err = storeContainer.GetFirstDevice()
+	if err != nil {
+		return device, fmt.Errorf("failed to get device: %v", err)
+	}
+
+	return device, nil
+}

bridge/whatsappmulti/whatsapp.go

@@ -0,0 +1,333 @@
+// +build whatsappmulti
+
+package bwhatsapp
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"mime"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/42wim/matterbridge/bridge"
+	"github.com/42wim/matterbridge/bridge/config"
+	"github.com/mdp/qrterminal"
+
+	"go.mau.fi/whatsmeow"
+	"go.mau.fi/whatsmeow/binary/proto"
+	"go.mau.fi/whatsmeow/types"
+	waLog "go.mau.fi/whatsmeow/util/log"
+
+	goproto "google.golang.org/protobuf/proto"
+
+	_ "modernc.org/sqlite" // needed for sqlite
+)
+
+const (
+	// Account config parameters
+	cfgNumber = "Number"
+)
+
+// Bwhatsapp Bridge structure keeping all the information needed for relying
+type Bwhatsapp struct {
+	*bridge.Config
+
+	startedAt   time.Time
+	wc          *whatsmeow.Client
+	contacts    map[types.JID]types.ContactInfo
+	users       map[string]types.ContactInfo
+	userAvatars map[string]string
+}
+
+// New Create a new WhatsApp bridge. This will be called for each [whatsapp.<server>] entry you have in the config file
+func New(cfg *bridge.Config) bridge.Bridger {
+	number := cfg.GetString(cfgNumber)
+
+	if number == "" {
+		cfg.Log.Fatalf("Missing configuration for WhatsApp bridge: Number")
+	}
+
+	b := &Bwhatsapp{
+		Config: cfg,
+
+		users:       make(map[string]types.ContactInfo),
+		userAvatars: make(map[string]string),
+	}
+
+	return b
+}
+
+// Connect to WhatsApp. Required implementation of the Bridger interface
+func (b *Bwhatsapp) Connect() error {
+	device, err := b.getDevice()
+	if err != nil {
+		return err
+	}
+
+	number := b.GetString(cfgNumber)
+	if number == "" {
+		return errors.New("whatsapp's telephone number need to be configured")
+	}
+
+	b.Log.Debugln("Connecting to WhatsApp..")
+
+	b.wc = whatsmeow.NewClient(device, waLog.Stdout("Client", "INFO", true))
+	b.wc.AddEventHandler(b.eventHandler)
+
+	firstlogin := false
+	var qrChan <-chan whatsmeow.QRChannelItem
+	if b.wc.Store.ID == nil {
+		firstlogin = true
+		qrChan, err = b.wc.GetQRChannel(context.Background())
+		if err != nil && !errors.Is(err, whatsmeow.ErrQRStoreContainsID) {
+			return errors.New("failed to to get QR channel:" + err.Error())
+		}
+	}
+
+	err = b.wc.Connect()
+	if err != nil {
+		return errors.New("failed to connect to WhatsApp: " + err.Error())
+	}
+
+	if b.wc.Store.ID == nil {
+		for evt := range qrChan {
+			if evt.Event == "code" {
+				qrterminal.GenerateHalfBlock(evt.Code, qrterminal.L, os.Stdout)
+			} else {
+				b.Log.Infof("QR channel result: %s", evt.Event)
+			}
+		}
+	}
+
+	// disconnect and reconnect on our first login/pairing
+	// for some reason the GetJoinedGroups in JoinChannel doesn't work on first login
+	if firstlogin {
+		b.wc.Disconnect()
+		time.Sleep(time.Second)
+
+		err = b.wc.Connect()
+		if err != nil {
+			return errors.New("failed to connect to WhatsApp: " + err.Error())
+		}
+	}
+
+	b.Log.Infoln("WhatsApp connection successful")
+
+	b.contacts, err = b.wc.Store.Contacts.GetAllContacts()
+	if err != nil {
+		return errors.New("failed to get contacts: " + err.Error())
+	}
+
+	b.startedAt = time.Now()
+
+	// map all the users
+	for id, contact := range b.contacts {
+		if !isGroupJid(id.String()) && id.String() != "status@broadcast" {
+			// it is user
+			b.users[id.String()] = contact
+		}
+	}
+
+	// get user avatar asynchronously
+	b.Log.Info("Getting user avatars..")
+
+	for jid := range b.users {
+		info, err := b.GetProfilePicThumb(jid)
+		if err != nil {
+			b.Log.Warnf("Could not get profile photo of %s: %v", jid, err)
+		} else {
+			b.Lock()
+			if info != nil {
+				b.userAvatars[jid] = info.URL
+			}
+			b.Unlock()
+		}
+	}
+
+	b.Log.Info("Finished getting avatars..")
+
+	return nil
+}
+
+// Disconnect is called while reconnecting to the bridge
+// Required implementation of the Bridger interface
+func (b *Bwhatsapp) Disconnect() error {
+	b.wc.Disconnect()
+
+	return nil
+}
+
+// JoinChannel Join a WhatsApp group specified in gateway config as channel='number-id@g.us' or channel='Channel name'
+// Required implementation of the Bridger interface
+// https://github.com/42wim/matterbridge/blob/2cfd880cdb0df29771bf8f31df8d990ab897889d/bridge/bridge.go#L11-L16
+func (b *Bwhatsapp) JoinChannel(channel config.ChannelInfo) error {
+	byJid := isGroupJid(channel.Name)
+
+	groups, err := b.wc.GetJoinedGroups()
+	if err != nil {
+		return err
+	}
+
+	// verify if we are member of the given group
+	if byJid {
+		gJID, err := types.ParseJID(channel.Name)
+		if err != nil {
+			return err
+		}
+
+		for _, group := range groups {
+			if group.JID == gJID {
+				return nil
+			}
+		}
+	}
+
+	foundGroups := []string{}
+
+	for _, group := range groups {
+		if group.Name == channel.Name {
+			foundGroups = append(foundGroups, group.Name)
+		}
+	}
+
+	switch len(foundGroups) {
+	case 0:
+		// didn't match any group - print out possibilites
+		for _, group := range groups {
+			b.Log.Infof("%s %s", group.JID, group.Name)
+		}
+		return fmt.Errorf("please specify group's JID from the list above instead of the name '%s'", channel.Name)
+	case 1:
+		return fmt.Errorf("group name might change. Please configure gateway with channel=\"%v\" instead of channel=\"%v\"", foundGroups[0], channel.Name)
+	default:
+		return fmt.Errorf("there is more than one group with name '%s'. Please specify one of JIDs as channel name: %v", channel.Name, foundGroups)
+	}
+}
+
+// Post a document message from the bridge to WhatsApp
+func (b *Bwhatsapp) PostDocumentMessage(msg config.Message, filetype string) (string, error) {
+	groupJID, _ := types.ParseJID(msg.Channel)
+
+	fi := msg.Extra["file"][0].(config.FileInfo)
+
+	resp, err := b.wc.Upload(context.Background(), *fi.Data, whatsmeow.MediaDocument)
+	if err != nil {
+		return "", err
+	}
+
+	// Post document message
+	var message proto.Message
+
+	message.DocumentMessage = &proto.DocumentMessage{
+		Title:         &fi.Name,
+		FileName:      &fi.Name,
+		Mimetype:      &filetype,
+		MediaKey:      resp.MediaKey,
+		FileEncSha256: resp.FileEncSHA256,
+		FileSha256:    resp.FileSHA256,
+		FileLength:    goproto.Uint64(resp.FileLength),
+		Url:           &resp.URL,
+	}
+
+	b.Log.Debugf("=> Sending %#v", msg)
+
+	ID := whatsmeow.GenerateMessageID()
+	_, err = b.wc.SendMessage(groupJID, ID, &message)
+
+	return ID, err
+}
+
+// Post an image message from the bridge to WhatsApp
+// Handle, for sure image/jpeg, image/png and image/gif MIME types
+func (b *Bwhatsapp) PostImageMessage(msg config.Message, filetype string) (string, error) {
+	groupJID, _ := types.ParseJID(msg.Channel)
+
+	fi := msg.Extra["file"][0].(config.FileInfo)
+
+	caption := msg.Username + fi.Comment
+
+	resp, err := b.wc.Upload(context.Background(), *fi.Data, whatsmeow.MediaImage)
+	if err != nil {
+		return "", err
+	}
+
+	var message proto.Message
+
+	message.ImageMessage = &proto.ImageMessage{
+		Mimetype:      &filetype,
+		Caption:       &caption,
+		MediaKey:      resp.MediaKey,
+		FileEncSha256: resp.FileEncSHA256,
+		FileSha256:    resp.FileSHA256,
+		FileLength:    goproto.Uint64(resp.FileLength),
+		Url:           &resp.URL,
+	}
+
+	b.Log.Debugf("=> Sending %#v", msg)
+
+	ID := whatsmeow.GenerateMessageID()
+	_, err = b.wc.SendMessage(groupJID, ID, &message)
+
+	return ID, err
+}
+
+// Send a message from the bridge to WhatsApp
+func (b *Bwhatsapp) Send(msg config.Message) (string, error) {
+	groupJID, _ := types.ParseJID(msg.Channel)
+
+	b.Log.Debugf("=> Receiving %#v", msg)
+
+	// Delete message
+	if msg.Event == config.EventMsgDelete {
+		if msg.ID == "" {
+			// No message ID in case action is executed on a message sent before the bridge was started
+			// and then the bridge cache doesn't have this message ID mapped
+			return "", nil
+		}
+
+		_, err := b.wc.RevokeMessage(groupJID, msg.ID)
+
+		return "", err
+	}
+
+	// Edit message
+	if msg.ID != "" {
+		b.Log.Debugf("updating message with id %s", msg.ID)
+
+		if b.GetString("editsuffix") != "" {
+			msg.Text += b.GetString("EditSuffix")
+		} else {
+			msg.Text += " (edited)"
+		}
+	}
+
+	// Handle Upload a file
+	if msg.Extra["file"] != nil {
+		fi := msg.Extra["file"][0].(config.FileInfo)
+		filetype := mime.TypeByExtension(filepath.Ext(fi.Name))
+
+		b.Log.Debugf("Extra file is %#v", filetype)
+
+		// TODO: add different types
+		// TODO: add webp conversion
+		switch filetype {
+		case "image/jpeg", "image/png", "image/gif":
+			return b.PostImageMessage(msg, filetype)
+		default:
+			return b.PostDocumentMessage(msg, filetype)
+		}
+	}
+
+	text := msg.Username + msg.Text
+
+	var message proto.Message
+
+	message.Conversation = &text
+
+	ID := whatsmeow.GenerateMessageID()
+	_, err := b.wc.SendMessage(groupJID, ID, &message)
+
+	return ID, err
+}

changelog.md

@@ -1,3 +1,91 @@
+# v1.25.2
+
+## Enhancements
+
+- general: Update dependencies (#1851,#1841)
+- mattermost: Support mattermost v7.x (#1852)
+
+## Bugfix
+
+- discord: Fix Unwanted join notifications from one Discord server to another (#1612)
+- discord: Ignore events from other guilds, add nosendjoinpart support (#1846)
+
+This release couldn't exist without the following contributors:
+@wlcx
+
+# v1.25.1
+
+## Enhancements
+
+- matrix: Add KeepQuotedReply option for matrix to fix regression (#1823)
+- slack: Improve Slack attachments formatting (slack) (#1807)
+
+## Bugfix
+
+- general: Update dependencies (#1813,#1822,#1833)
+- mattermost: Add space between filename and URL (mattermost). Fixes #1820
+- matrix: Update matterbridge/gomatrix. Fixes #1772 (#1803)
+- telegram: Do not modify .webm files (telegram). Fixes #17**88 (#1802)
+- telegram: Do not apply any markup to URL entities (telegram) (#1808)
+- telegram: Fix telegram message deletion request (#1818)
+- vk: Fix UploadMessagesPhoto for vk community chat (vk) (#1812)
+
+This release couldn't exist without the following contributors:
+@bd808, @chugunov, @sas1024, @SevereCloud, @ValdikSS
+
+# v1.25.0
+
+## Breaking changes
+
+- whatsapp: deprecated, the library <https://github.com/Rhymen/go-whatsapp> isn't maintained anymore.
+We're switching to <https://github.com/tulir/whatsmeow> but as this uses a GPL3 licensed library we can't provide you with binaries.
+You'll need to build it yourself. More information about this can be found here: <https://github.com/42wim/matterbridge#building-with-whatsapp-beta-multidevice-support>
+
+## New features
+
+- whatsappmulti: whatsapp multidevice support added - more info <https://github.com/42wim/matterbridge#building-with-whatsapp-beta-multidevice-support>
+- general: Add Dockerfile_whatsappmulti for building with WhatsApp Multi-Device support (Whatsmeow) (#1774)
+- telegram: Add UseFullName option (telegram) (#1777)
+- slack: Use slack real name as user name (slack) (#1775)
+
+## Enhancements
+
+- general: Ignore sending file with comment, if comment contains IgnoreMessages value (#1783)
+- general: Update dependencies (#1784)
+- irc: Update lrstanley/girc dep (#1773)
+- slack: Preserve threading for messages with files (slack) (#1781)
+- telegram: Preserve threading from telegram replies (telegram) (#1776)
+- telegram: Multiple media in one message (telegram) (#1779)
+- whatsapp: Add whatsapp deprecation warning (#1792)
+
+## Bugfix
+
+- discord: Change discord non-native threading behaviour (discord) (#1791)
+
+This release couldn't exist without the following contributors:
+@sas1024, @tpxtron
+
+# v1.24.1
+
+## Enhancements
+
+- discord: Switch to discordgo upstream again (#1759)
+- general: Update dependencies and vendor (#1761)
+- general: Create inmessage-logger.tengo (#1688) (#1747)
+- general: Add OpenRC service file (#1746)
+- irc: Refactor utf-8 conversion (irc) (#1767)
+
+## Bugfixes
+
+- irc: Fix panic in irc. Closes #1751 (#1760)
+- mumble: Implement a workaround to signal Opus support (mumble) (#1764)
+- telegram: Fix for complex-formatted Telegram text (#1765)
+- telegram: Fix Telegram channel title in forwards (#1753)
+- telegram: Fix Telegram Problem (unforwarded formatting and skipping of linebreaks) (#1749)
+
+This release couldn't exist without the following contributors:
+@s3lph, @ValdikSS, @reckel-jm, @CyberTailor
+
 # v1.24.0
 
 ## New features
@@ -30,6 +118,9 @@
 - matrix: Make HTMLDisable work correct (matrix) (#1716)
 - whatsapp: Make EditSuffix option actually work (whatsapp). Fixes #1510 (#1728)
 
+This release couldn't exist without the following contributors:
+@DavyJohnesev, @GoliathLabs, @pontaoski, @PeGaSuS-Coder, @dependabot[bot], @vpzomtrrfrt, @SevereCloud, @soloam, @YashRE42, @danwalmsley, @SuperSandro2000, @inzanity
+
 # v1.23.2
 
 If you're running whatsapp you should update.
@@ -38,6 +129,9 @@ If you're running whatsapp you should update.
 
 - whatsapp: Update go-whatsapp version (#1630)
 
+This release couldn't exist without the following contributors:
+@snikpic
+
 # v1.23.1
 
 If you're running mattermost 6 you should update.
@@ -52,6 +146,9 @@ If you're running mattermost 6 you should update.
 - xmpp: Use a new msgID when replacing messages (xmpp). Fixes #1584 (#1623)
 - zulip: Add better error handling on Zulip (#1589)
 
+This release couldn't exist without the following contributors:
+@Polynomdivision, @minecraftchest1, @alexmv
+
 # v1.23.0
 
 ## New features

contrib/inmessage-logger.tengo

@@ -0,0 +1,15 @@
+fmt := import("fmt")
+os := import("os")
+times := import("times")
+
+if msgText != "" && msgUsername != "system" {
+    os.chdir("/var/www/matterbridge")
+    file := os.open_file("inmessage.log", os.o_append|os.o_wronly|os.o_create, 0644)
+    file.write_string(fmt.sprintf(
+        "[%s] <%s> %s\n",
+        times.time_format(times.now(), times.format_rfc1123),
+        msgUsername,
+        msgText
+    ))
+    file.close()
+}

contrib/matterbridge.openrc

@@ -0,0 +1,19 @@
+#!/sbin/openrc-run
+# Copyright 2021-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+command=/usr/bin/matterbridge
+command_args="-conf ${MATTERBRIDGE_CONF:-/etc/matterbridge/bridge.toml} ${MATTERBRIDGE_ARGS}"
+command_user="matterbridge:matterbridge"
+pidfile="/run/${RC_SVCNAME}.pid"
+command_background=1
+output_log="/var/log/${RC_SVCNAME}.log"
+error_log="${output_log}"
+
+depend() {
+	need net
+}
+
+start_pre() {
+	checkpath -f "${output_log}" -o "${command_user}" || return 1
+}

gateway/bridgemap/bwhatsapp.go

@@ -1,4 +1,5 @@
 // +build !nowhatsapp
+// +build !whatsappmulti
 
 package bridgemap
 

gateway/bridgemap/bwhatsappmulti.go

@@ -0,0 +1,11 @@
+// +build whatsappmulti
+
+package bridgemap
+
+import (
+	bwhatsapp "github.com/42wim/matterbridge/bridge/whatsappmulti"
+)
+
+func init() {
+	FullMap["whatsapp"] = bwhatsapp.New
+}

gateway/gateway.go

@@ -299,13 +299,30 @@ func (gw *Gateway) ignoreMessage(msg *config.Message) bool {
 
 	igNicks := strings.Fields(gw.Bridges[msg.Account].GetString("IgnoreNicks"))
 	igMessages := strings.Fields(gw.Bridges[msg.Account].GetString("IgnoreMessages"))
-	if gw.ignoreTextEmpty(msg) || gw.ignoreText(msg.Username, igNicks) || gw.ignoreText(msg.Text, igMessages) {
+	if gw.ignoreTextEmpty(msg) || gw.ignoreText(msg.Username, igNicks) || gw.ignoreText(msg.Text, igMessages) || gw.ignoreFilesComment(msg.Extra, igMessages) {
 		return true
 	}
 
 	return false
 }
 
+// ignoreFilesComment returns true if we need to ignore a file with matched comment.
+func (gw *Gateway) ignoreFilesComment(extra map[string][]interface{}, igMessages []string) bool {
+	if extra == nil {
+		return false
+	}
+	for _, f := range extra["file"] {
+		fi, ok := f.(config.FileInfo)
+		if !ok {
+			continue
+		}
+		if gw.ignoreText(fi.Comment, igMessages) {
+			return true
+		}
+	}
+	return false
+}
+
 func (gw *Gateway) modifyUsername(msg *config.Message, dest *bridge.Bridge) string {
 	if dest.GetBool("StripNick") {
 		re := regexp.MustCompile("[^a-zA-Z0-9]+")

go.mod

@@ -6,55 +6,60 @@ require (
 	github.com/Benau/tgsconverter v0.0.0-20210809170556-99f4a4f6337f
 	github.com/Philipp15b/go-steam v1.0.1-0.20200727090957-6ae9b3c0a560
 	github.com/Rhymen/go-whatsapp v0.1.2-0.20211102134409-31a2e740845c
-	github.com/SevereCloud/vksdk/v2 v2.13.1
-	github.com/d5/tengo/v2 v2.10.0
+	github.com/SevereCloud/vksdk/v2 v2.14.1
+	github.com/bwmarrin/discordgo v0.25.0
+	github.com/d5/tengo/v2 v2.12.0
 	github.com/davecgh/go-spew v1.1.1
-	github.com/fsnotify/fsnotify v1.5.1
+	github.com/fsnotify/fsnotify v1.5.4
 	github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1
-	github.com/gomarkdown/markdown v0.0.0-20211207152620-5d6539fd8bfc
-	github.com/google/gops v0.3.22
+	github.com/gomarkdown/markdown v0.0.0-20220607163217-45f7c050e2d1
+	github.com/google/gops v0.3.23
 	github.com/gorilla/schema v1.2.0
-	github.com/gorilla/websocket v1.4.2
-	github.com/harmony-development/shibshib v0.0.0-20211127182844-512296f7c548
+	github.com/gorilla/websocket v1.5.0
+	github.com/harmony-development/shibshib v0.0.0-20220101224523-c98059d09cfa
 	github.com/hashicorp/golang-lru v0.5.4
 	github.com/jpillora/backoff v1.0.0
-	github.com/keybase/go-keybase-chat-bot v0.0.0-20211201215354-ee4b23828b55
-	github.com/kyokomi/emoji/v2 v2.2.8
-	github.com/labstack/echo/v4 v4.6.3
-	github.com/lrstanley/girc v0.0.0-20211023233735-147f0ff77566
-	github.com/matrix-org/gomatrix v0.0.0-20210324163249-be2af5ef2e16
+	github.com/keybase/go-keybase-chat-bot v0.0.0-20220322223021-75d497527469
+	github.com/kyokomi/emoji/v2 v2.2.9
+	github.com/labstack/echo/v4 v4.7.2
+	github.com/lrstanley/girc v0.0.0-20220507183218-96757fe3d2a2
 	github.com/matterbridge/Rocket.Chat.Go.SDK v0.0.0-20211016222428-79310a412696
-	github.com/matterbridge/discordgo v0.21.2-0.20210201201054-fb39a175b4f7
 	github.com/matterbridge/go-xmpp v0.0.0-20211030125215-791a06c5f1be
+	github.com/matterbridge/gomatrix v0.0.0-20220411225302-271e5088ea27
 	github.com/matterbridge/gozulipbot v0.0.0-20211023205727-a19d6c1f3b75
 	github.com/matterbridge/logrus-prefixed-formatter v0.5.3-0.20200523233437-d971309a77ba
-	github.com/matterbridge/matterclient v0.0.0-20211107234719-faca3cd42315
+	github.com/matterbridge/matterclient v0.0.0-20220430213656-07aca2731bc9
 	github.com/mattermost/mattermost-server/v5 v5.39.3
-	github.com/mattermost/mattermost-server/v6 v6.3.0
+	github.com/mattermost/mattermost-server/v6 v6.7.0
 	github.com/mattn/godown v0.0.1
-	github.com/missdeer/golib v1.0.4
-	github.com/nelsonken/gomf v0.0.0-20180504123937-a9dd2f9deae9
+	github.com/mdp/qrterminal v1.0.1
+	github.com/nelsonken/gomf v0.0.0-20190423072027-c65cc0469e94
 	github.com/paulrosania/go-charset v0.0.0-20190326053356-55c9d7a5834c
-	github.com/rs/xid v1.3.0
+	github.com/rs/xid v1.4.0
 	github.com/russross/blackfriday v1.6.0
 	github.com/saintfish/chardet v0.0.0-20120816061221-3af4cd4741ca
 	github.com/shazow/ssh-chat v1.10.1
 	github.com/sirupsen/logrus v1.8.1
-	github.com/slack-go/slack v0.10.0
-	github.com/spf13/viper v1.10.1
-	github.com/stretchr/testify v1.7.0
+	github.com/slack-go/slack v0.11.0
+	github.com/spf13/viper v1.12.0
+	github.com/stretchr/testify v1.7.2
 	github.com/vincent-petithory/dataurl v1.0.0
 	github.com/writeas/go-strip-markdown v2.0.1+incompatible
 	github.com/yaegashi/msgraph.go v0.1.4
-	github.com/zfjagann/golang-ring v0.0.0-20210116075443-7c86fdb43134
-	golang.org/x/image v0.0.0-20211028202545-6944b10bf410
-	golang.org/x/oauth2 v0.0.0-20211104180415-d3ed0bb246c8
+	github.com/zfjagann/golang-ring v0.0.0-20220330170733-19bcea1b6289
+	go.mau.fi/whatsmeow v0.0.0-20220624184947-57a69a641154
+	golang.org/x/image v0.0.0-20220617043117-41969df76e82
+	golang.org/x/oauth2 v0.0.0-20220622183110-fd043fe589d2
+	golang.org/x/text v0.3.7
 	gomod.garykim.dev/nc-talk v0.3.0
+	google.golang.org/protobuf v1.28.0
 	gopkg.in/olahol/melody.v1 v1.0.0-20170518105555-d52139073376
 	layeh.com/gumble v0.0.0-20200818122324-146f9205029b
+	modernc.org/sqlite v1.17.3
 )
 
 require (
+	filippo.io/edwards25519 v1.0.0-rc.1 // indirect
 	github.com/Benau/go_rlottie v0.0.0-20210807002906-98c1b2421989 // indirect
 	github.com/Jeffail/gabs v1.4.0 // indirect
 	github.com/apex/log v1.9.0 // indirect
@@ -68,15 +73,17 @@ require (
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gopackage/ddp v0.0.3 // indirect
+	github.com/graph-gophers/graphql-go v1.3.0 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
 	github.com/kettek/apng v0.0.0-20191108220231-414630eed80f // indirect
-	github.com/klauspost/compress v1.14.2 // indirect
-	github.com/klauspost/cpuid/v2 v2.0.9 // indirect
+	github.com/klauspost/compress v1.15.6 // indirect
+	github.com/klauspost/cpuid/v2 v2.0.12 // indirect
 	github.com/labstack/gommon v0.3.1 // indirect
-	github.com/magiconair/properties v1.8.5 // indirect
+	github.com/magiconair/properties v1.8.6 // indirect
 	github.com/mattermost/go-i18n v1.11.1-0.20211013152124-5c415071e404 // indirect
 	github.com/mattermost/ldap v0.0.0-20201202150706-ee0e6284187d // indirect
 	github.com/mattermost/logr v1.0.13 // indirect
@@ -86,31 +93,34 @@ require (
 	github.com/mattn/go-runewidth v0.0.13 // indirect
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
 	github.com/minio/md5-simd v1.1.2 // indirect
-	github.com/minio/minio-go/v7 v7.0.16 // indirect
+	github.com/minio/minio-go/v7 v7.0.24 // indirect
 	github.com/minio/sha256-simd v1.0.0 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
-	github.com/mitchellh/mapstructure v1.4.3 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/monaco-io/request v1.0.5 // indirect
 	github.com/mreiferson/go-httpclient v0.0.0-20201222173833-5e475fde3a4d // indirect
 	github.com/mrexodia/wray v0.0.0-20160318003008-78a2c1f284ff // indirect
+	github.com/opentracing/opentracing-go v1.2.0 // indirect
 	github.com/pborman/uuid v1.2.1 // indirect
-	github.com/pelletier/go-toml v1.9.4 // indirect
+	github.com/pelletier/go-toml v1.9.5 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.1 // indirect
 	github.com/philhofer/fwd v1.1.1 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 // indirect
 	github.com/rickb777/date v1.12.4 // indirect
 	github.com/rickb777/plural v1.2.0 // indirect
 	github.com/rivo/uniseg v0.2.0 // indirect
 	github.com/shazow/rateio v0.0.0-20200113175441-4461efc8bdc4 // indirect
 	github.com/sizeofint/webpanimation v0.0.0-20210809145948-1d2b32119882 // indirect
-	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e // indirect
-	github.com/spf13/afero v1.6.0 // indirect
-	github.com/spf13/cast v1.4.1 // indirect
+	github.com/skip2/go-qrcode v0.0.0-20190110000554-dc11ecdae0a9 // indirect
+	github.com/spf13/afero v1.8.2 // indirect
+	github.com/spf13/cast v1.5.0 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/subosito/gotenv v1.2.0 // indirect
+	github.com/subosito/gotenv v1.3.0 // indirect
 	github.com/tinylib/msgp v1.1.6 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.1 // indirect
@@ -119,23 +129,35 @@ require (
 	github.com/wiggin77/cfg v1.0.2 // indirect
 	github.com/wiggin77/merror v1.0.3 // indirect
 	github.com/wiggin77/srslog v1.0.1 // indirect
+	go.mau.fi/libsignal v0.0.0-20220425070825-c40c839ee6a0 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.7.0 // indirect
 	go.uber.org/zap v1.17.0 // indirect
-	golang.org/x/crypto v0.0.0-20211117183948-ae814b36b871 // indirect
-	golang.org/x/net v0.0.0-20211123203042-d83791d6bcd9 // indirect
-	golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e // indirect
-	golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 // indirect
-	golang.org/x/text v0.3.7 // indirect
+	golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4 // indirect
+	golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3 // indirect
+	golang.org/x/net v0.0.0-20220520000938-2e3eb7b945c2 // indirect
+	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a // indirect
+	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 	golang.org/x/time v0.0.0-20201208040808-7e3f01d25324 // indirect
+	golang.org/x/tools v0.1.10 // indirect
+	golang.org/x/xerrors v0.0.0-20220517211312-f3a8303e98df // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/protobuf v1.27.1 // indirect
-	gopkg.in/ini.v1 v1.66.2 // indirect
+	gopkg.in/ini.v1 v1.66.4 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
-	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	lukechampine.com/uint128 v1.1.1 // indirect
+	modernc.org/cc/v3 v3.36.0 // indirect
+	modernc.org/ccgo/v3 v3.16.6 // indirect
+	modernc.org/libc v1.16.7 // indirect
+	modernc.org/mathutil v1.4.1 // indirect
+	modernc.org/memory v1.1.1 // indirect
+	modernc.org/opt v0.1.1 // indirect
+	modernc.org/strutil v1.1.1 // indirect
+	modernc.org/token v1.0.0 // indirect
+	rsc.io/qr v0.2.0 // indirect
 )
 
-replace github.com/matrix-org/gomatrix => github.com/matterbridge/gomatrix v0.0.0-20220205235239-607eb9ee6419
+//replace github.com/matrix-org/gomatrix => github.com/matterbridge/gomatrix v0.0.0-20220205235239-607eb9ee6419
 
 go 1.17

matterbridge.toml.sample

@@ -197,7 +197,7 @@ ShowJoinPart=false
 VerboseJoinPart=false
 
 #Do not send joins/parts to other bridges
-#Currently works for messages from the following bridges: irc, mattermost, slack
+#Currently works for messages from the following bridges: irc, mattermost, slack, discord
 #OPTIONAL (default false)
 NoSendJoinPart=false
 
@@ -496,7 +496,7 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 ShowJoinPart=false
 
 #Do not send joins/parts to other bridges
-#Currently works for messages from the following bridges: irc, mattermost, slack
+#Currently works for messages from the following bridges: irc, mattermost, slack, discord
 #OPTIONAL (default false)
 NoSendJoinPart=false
 
@@ -830,7 +830,7 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 ShowJoinPart=false
 
 #Do not send joins/parts to other bridges
-#Currently works for messages from the following bridges: irc, mattermost, slack
+#Currently works for messages from the following bridges: irc, mattermost, slack, discord
 #OPTIONAL (default false)
 NoSendJoinPart=false
 
@@ -862,6 +862,10 @@ ShowUserTyping=false
 #Default "<clipped message>"
 MessageClipped="<clipped message>"
 
+#If enabled use the slack "Real Name" as username.
+#OPTIONAL (default false)
+UseFullName=false
+
 ###################################################################
 #discord section
 ###################################################################
@@ -1036,6 +1040,12 @@ DisableWebPagePreview=false
 #OPTIONAL (default false)
 UseFirstName=false
 
+#If enabled use the "Full Name" as username. If this is empty use the Username
+#If disabled use the "Username" as username. If this is empty use the First Name and Last Name as Full Name
+#If all names are empty, username will be "unknown"
+#OPTIONAL (default false)
+UseFullName=false
+
 #WARNING! If enabled this will relay GIF/stickers/documents and other attachments as URLs
 #Those URLs will contain your bot-token. This may not be what you want.
 #For now there is no secure way to relay GIF/stickers/documents without seeing your token.
@@ -1141,6 +1151,12 @@ StripNick=false
 #OPTIONAL (default false)
 ShowTopicChange=false
 
+#Opportunistically preserve threaded replies between Telegram groups.
+#This only works if the parent message is still in the cache.
+#Cache is flushed between restarts.
+#OPTIONAL (default false)
+PreserveThreading=false
+
 ###################################################################
 #rocketchat section
 ###################################################################
@@ -1312,6 +1328,15 @@ HTMLDisable=false
 # UseUserName shows the username instead of the server nickname
 UseUserName=false
 
+# Matrix quotes replies and as of matterbridge 1.24.0 we strip those as this causes
+# issues with bridges support threading and have PreserveThreading enabled.
+# But if you for example use mattermost or discord with webhooks you'll need to enable 
+# this (and keep PreserveThreading disabled) if you want something that looks like a reply from matrix.
+# See issues: 
+# - https://github.com/42wim/matterbridge/issues/1819
+# - https://github.com/42wim/matterbridge/issues/1780
+KeepQuotedReply=false
+
 #Nicks you want to ignore.
 #Regular expressions supported
 #Messages from those users will not be sent to other bridges.

vendor/filippo.io/edwards25519/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/filippo.io/edwards25519/README.md

@@ -0,0 +1,14 @@
+# filippo.io/edwards25519
+
+```
+import "filippo.io/edwards25519"
+```
+
+This library implements the edwards25519 elliptic curve, exposing the necessary APIs to build a wide array of higher-level primitives.
+Read the docs at [pkg.go.dev/filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519).
+
+The code is originally derived from Adam Langley's internal implementation in the Go standard library, and includes George Tankersley's [performance improvements](https://golang.org/cl/71950). It was then further developed by Henry de Valence for use in ristretto255.
+
+Most users don't need this package, and should instead use `crypto/ed25519` for signatures, `golang.org/x/crypto/curve25519` for Diffie-Hellman, or `github.com/gtank/ristretto255` for prime order group logic. However, for anyone currently using a fork of `crypto/ed25519/internal/edwards25519` or `github.com/agl/edwards25519`, this package should be a safer, faster, and more powerful alternative.
+
+Since this package is meant to curb proliferation of edwards25519 implementations in the Go ecosystem, it welcomes requests for new APIs or reviewable performance improvements.

vendor/filippo.io/edwards25519/doc.go

@@ -0,0 +1,20 @@
+// Copyright (c) 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package edwards25519 implements group logic for the twisted Edwards curve
+//
+//     -x^2 + y^2 = 1 + -(121665/121666)*x^2*y^2
+//
+// This is better known as the Edwards curve equivalent to Curve25519, and is
+// the curve used by the Ed25519 signature scheme.
+//
+// Most users don't need this package, and should instead use crypto/ed25519 for
+// signatures, golang.org/x/crypto/curve25519 for Diffie-Hellman, or
+// github.com/gtank/ristretto255 for prime order group logic.
+//
+// However, developers who do need to interact with low-level edwards25519
+// operations can use this package, which is an extended version of
+// crypto/ed25519/internal/edwards25519 from the standard library repackaged as
+// an importable module.
+package edwards25519

vendor/filippo.io/edwards25519/edwards25519.go

@@ -0,0 +1,428 @@
+// Copyright (c) 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package edwards25519
+
+import (
+	"errors"
+
+	"filippo.io/edwards25519/field"
+)
+
+// Point types.
+
+type projP1xP1 struct {
+	X, Y, Z, T field.Element
+}
+
+type projP2 struct {
+	X, Y, Z field.Element
+}
+
+// Point represents a point on the edwards25519 curve.
+//
+// This type works similarly to math/big.Int, and all arguments and receivers
+// are allowed to alias.
+//
+// The zero value is NOT valid, and it may be used only as a receiver.
+type Point struct {
+	// The point is internally represented in extended coordinates (X, Y, Z, T)
+	// where x = X/Z, y = Y/Z, and xy = T/Z per https://eprint.iacr.org/2008/522.
+	x, y, z, t field.Element
+
+	// Make the type not comparable (i.e. used with == or as a map key), as
+	// equivalent points can be represented by different Go values.
+	_ incomparable
+}
+
+type incomparable [0]func()
+
+func checkInitialized(points ...*Point) {
+	for _, p := range points {
+		if p.x == (field.Element{}) && p.y == (field.Element{}) {
+			panic("edwards25519: use of uninitialized Point")
+		}
+	}
+}
+
+type projCached struct {
+	YplusX, YminusX, Z, T2d field.Element
+}
+
+type affineCached struct {
+	YplusX, YminusX, T2d field.Element
+}
+
+// Constructors.
+
+func (v *projP2) Zero() *projP2 {
+	v.X.Zero()
+	v.Y.One()
+	v.Z.One()
+	return v
+}
+
+// identity is the point at infinity.
+var identity, _ = new(Point).SetBytes([]byte{
+	1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
+
+// NewIdentityPoint returns a new Point set to the identity.
+func NewIdentityPoint() *Point {
+	return new(Point).Set(identity)
+}
+
+// generator is the canonical curve basepoint. See TestGenerator for the
+// correspondence of this encoding with the values in RFC 8032.
+var generator, _ = new(Point).SetBytes([]byte{
+	0x58, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
+	0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
+	0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
+	0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66})
+
+// NewGeneratorPoint returns a new Point set to the canonical generator.
+func NewGeneratorPoint() *Point {
+	return new(Point).Set(generator)
+}
+
+func (v *projCached) Zero() *projCached {
+	v.YplusX.One()
+	v.YminusX.One()
+	v.Z.One()
+	v.T2d.Zero()
+	return v
+}
+
+func (v *affineCached) Zero() *affineCached {
+	v.YplusX.One()
+	v.YminusX.One()
+	v.T2d.Zero()
+	return v
+}
+
+// Assignments.
+
+// Set sets v = u, and returns v.
+func (v *Point) Set(u *Point) *Point {
+	*v = *u
+	return v
+}
+
+// Encoding.
+
+// Bytes returns the canonical 32-byte encoding of v, according to RFC 8032,
+// Section 5.1.2.
+func (v *Point) Bytes() []byte {
+	// This function is outlined to make the allocations inline in the caller
+	// rather than happen on the heap.
+	var buf [32]byte
+	return v.bytes(&buf)
+}
+
+func (v *Point) bytes(buf *[32]byte) []byte {
+	checkInitialized(v)
+
+	var zInv, x, y field.Element
+	zInv.Invert(&v.z)       // zInv = 1 / Z
+	x.Multiply(&v.x, &zInv) // x = X / Z
+	y.Multiply(&v.y, &zInv) // y = Y / Z
+
+	out := copyFieldElement(buf, &y)
+	out[31] |= byte(x.IsNegative() << 7)
+	return out
+}
+
+var feOne = new(field.Element).One()
+
+// SetBytes sets v = x, where x is a 32-byte encoding of v. If x does not
+// represent a valid point on the curve, SetBytes returns nil and an error and
+// the receiver is unchanged. Otherwise, SetBytes returns v.
+//
+// Note that SetBytes accepts all non-canonical encodings of valid points.
+// That is, it follows decoding rules that match most implementations in
+// the ecosystem rather than RFC 8032.
+func (v *Point) SetBytes(x []byte) (*Point, error) {
+	// Specifically, the non-canonical encodings that are accepted are
+	//   1) the ones where the field element is not reduced (see the
+	//      (*field.Element).SetBytes docs) and
+	//   2) the ones where the x-coordinate is zero and the sign bit is set.
+	//
+	// This is consistent with crypto/ed25519/internal/edwards25519. Read more
+	// at https://hdevalence.ca/blog/2020-10-04-its-25519am, specifically the
+	// "Canonical A, R" section.
+
+	y, err := new(field.Element).SetBytes(x)
+	if err != nil {
+		return nil, errors.New("edwards25519: invalid point encoding length")
+	}
+
+	// -x² + y² = 1 + dx²y²
+	// x² + dx²y² = x²(dy² + 1) = y² - 1
+	// x² = (y² - 1) / (dy² + 1)
+
+	// u = y² - 1
+	y2 := new(field.Element).Square(y)
+	u := new(field.Element).Subtract(y2, feOne)
+
+	// v = dy² + 1
+	vv := new(field.Element).Multiply(y2, d)
+	vv = vv.Add(vv, feOne)
+
+	// x = +√(u/v)
+	xx, wasSquare := new(field.Element).SqrtRatio(u, vv)
+	if wasSquare == 0 {
+		return nil, errors.New("edwards25519: invalid point encoding")
+	}
+
+	// Select the negative square root if the sign bit is set.
+	xxNeg := new(field.Element).Negate(xx)
+	xx = xx.Select(xxNeg, xx, int(x[31]>>7))
+
+	v.x.Set(xx)
+	v.y.Set(y)
+	v.z.One()
+	v.t.Multiply(xx, y) // xy = T / Z
+
+	return v, nil
+}
+
+func copyFieldElement(buf *[32]byte, v *field.Element) []byte {
+	copy(buf[:], v.Bytes())
+	return buf[:]
+}
+
+// Conversions.
+
+func (v *projP2) FromP1xP1(p *projP1xP1) *projP2 {
+	v.X.Multiply(&p.X, &p.T)
+	v.Y.Multiply(&p.Y, &p.Z)
+	v.Z.Multiply(&p.Z, &p.T)
+	return v
+}
+
+func (v *projP2) FromP3(p *Point) *projP2 {
+	v.X.Set(&p.x)
+	v.Y.Set(&p.y)
+	v.Z.Set(&p.z)
+	return v
+}
+
+func (v *Point) fromP1xP1(p *projP1xP1) *Point {
+	v.x.Multiply(&p.X, &p.T)
+	v.y.Multiply(&p.Y, &p.Z)
+	v.z.Multiply(&p.Z, &p.T)
+	v.t.Multiply(&p.X, &p.Y)
+	return v
+}
+
+func (v *Point) fromP2(p *projP2) *Point {
+	v.x.Multiply(&p.X, &p.Z)
+	v.y.Multiply(&p.Y, &p.Z)
+	v.z.Square(&p.Z)
+	v.t.Multiply(&p.X, &p.Y)
+	return v
+}
+
+// d is a constant in the curve equation.
+var d, _ = new(field.Element).SetBytes([]byte{
+	0xa3, 0x78, 0x59, 0x13, 0xca, 0x4d, 0xeb, 0x75,
+	0xab, 0xd8, 0x41, 0x41, 0x4d, 0x0a, 0x70, 0x00,
+	0x98, 0xe8, 0x79, 0x77, 0x79, 0x40, 0xc7, 0x8c,
+	0x73, 0xfe, 0x6f, 0x2b, 0xee, 0x6c, 0x03, 0x52})
+var d2 = new(field.Element).Add(d, d)
+
+func (v *projCached) FromP3(p *Point) *projCached {
+	v.YplusX.Add(&p.y, &p.x)
+	v.YminusX.Subtract(&p.y, &p.x)
+	v.Z.Set(&p.z)
+	v.T2d.Multiply(&p.t, d2)
+	return v
+}
+
+func (v *affineCached) FromP3(p *Point) *affineCached {
+	v.YplusX.Add(&p.y, &p.x)
+	v.YminusX.Subtract(&p.y, &p.x)
+	v.T2d.Multiply(&p.t, d2)
+
+	var invZ field.Element
+	invZ.Invert(&p.z)
+	v.YplusX.Multiply(&v.YplusX, &invZ)
+	v.YminusX.Multiply(&v.YminusX, &invZ)
+	v.T2d.Multiply(&v.T2d, &invZ)
+	return v
+}
+
+// (Re)addition and subtraction.
+
+// Add sets v = p + q, and returns v.
+func (v *Point) Add(p, q *Point) *Point {
+	checkInitialized(p, q)
+	qCached := new(projCached).FromP3(q)
+	result := new(projP1xP1).Add(p, qCached)
+	return v.fromP1xP1(result)
+}
+
+// Subtract sets v = p - q, and returns v.
+func (v *Point) Subtract(p, q *Point) *Point {
+	checkInitialized(p, q)
+	qCached := new(projCached).FromP3(q)
+	result := new(projP1xP1).Sub(p, qCached)
+	return v.fromP1xP1(result)
+}
+
+func (v *projP1xP1) Add(p *Point, q *projCached) *projP1xP1 {
+	var YplusX, YminusX, PP, MM, TT2d, ZZ2 field.Element
+
+	YplusX.Add(&p.y, &p.x)
+	YminusX.Subtract(&p.y, &p.x)
+
+	PP.Multiply(&YplusX, &q.YplusX)
+	MM.Multiply(&YminusX, &q.YminusX)
+	TT2d.Multiply(&p.t, &q.T2d)
+	ZZ2.Multiply(&p.z, &q.Z)
+
+	ZZ2.Add(&ZZ2, &ZZ2)
+
+	v.X.Subtract(&PP, &MM)
+	v.Y.Add(&PP, &MM)
+	v.Z.Add(&ZZ2, &TT2d)
+	v.T.Subtract(&ZZ2, &TT2d)
+	return v
+}
+
+func (v *projP1xP1) Sub(p *Point, q *projCached) *projP1xP1 {
+	var YplusX, YminusX, PP, MM, TT2d, ZZ2 field.Element
+
+	YplusX.Add(&p.y, &p.x)
+	YminusX.Subtract(&p.y, &p.x)
+
+	PP.Multiply(&YplusX, &q.YminusX) // flipped sign
+	MM.Multiply(&YminusX, &q.YplusX) // flipped sign
+	TT2d.Multiply(&p.t, &q.T2d)
+	ZZ2.Multiply(&p.z, &q.Z)
+
+	ZZ2.Add(&ZZ2, &ZZ2)
+
+	v.X.Subtract(&PP, &MM)
+	v.Y.Add(&PP, &MM)
+	v.Z.Subtract(&ZZ2, &TT2d) // flipped sign
+	v.T.Add(&ZZ2, &TT2d)      // flipped sign
+	return v
+}
+
+func (v *projP1xP1) AddAffine(p *Point, q *affineCached) *projP1xP1 {
+	var YplusX, YminusX, PP, MM, TT2d, Z2 field.Element
+
+	YplusX.Add(&p.y, &p.x)
+	YminusX.Subtract(&p.y, &p.x)
+
+	PP.Multiply(&YplusX, &q.YplusX)
+	MM.Multiply(&YminusX, &q.YminusX)
+	TT2d.Multiply(&p.t, &q.T2d)
+
+	Z2.Add(&p.z, &p.z)
+
+	v.X.Subtract(&PP, &MM)
+	v.Y.Add(&PP, &MM)
+	v.Z.Add(&Z2, &TT2d)
+	v.T.Subtract(&Z2, &TT2d)
+	return v
+}
+
+func (v *projP1xP1) SubAffine(p *Point, q *affineCached) *projP1xP1 {
+	var YplusX, YminusX, PP, MM, TT2d, Z2 field.Element
+
+	YplusX.Add(&p.y, &p.x)
+	YminusX.Subtract(&p.y, &p.x)
+
+	PP.Multiply(&YplusX, &q.YminusX) // flipped sign
+	MM.Multiply(&YminusX, &q.YplusX) // flipped sign
+	TT2d.Multiply(&p.t, &q.T2d)
+
+	Z2.Add(&p.z, &p.z)
+
+	v.X.Subtract(&PP, &MM)
+	v.Y.Add(&PP, &MM)
+	v.Z.Subtract(&Z2, &TT2d) // flipped sign
+	v.T.Add(&Z2, &TT2d)      // flipped sign
+	return v
+}
+
+// Doubling.
+
+func (v *projP1xP1) Double(p *projP2) *projP1xP1 {
+	var XX, YY, ZZ2, XplusYsq field.Element
+
+	XX.Square(&p.X)
+	YY.Square(&p.Y)
+	ZZ2.Square(&p.Z)
+	ZZ2.Add(&ZZ2, &ZZ2)
+	XplusYsq.Add(&p.X, &p.Y)
+	XplusYsq.Square(&XplusYsq)
+
+	v.Y.Add(&YY, &XX)
+	v.Z.Subtract(&YY, &XX)
+
+	v.X.Subtract(&XplusYsq, &v.Y)
+	v.T.Subtract(&ZZ2, &v.Z)
+	return v
+}
+
+// Negation.
+
+// Negate sets v = -p, and returns v.
+func (v *Point) Negate(p *Point) *Point {
+	checkInitialized(p)
+	v.x.Negate(&p.x)
+	v.y.Set(&p.y)
+	v.z.Set(&p.z)
+	v.t.Negate(&p.t)
+	return v
+}
+
+// Equal returns 1 if v is equivalent to u, and 0 otherwise.
+func (v *Point) Equal(u *Point) int {
+	checkInitialized(v, u)
+
+	var t1, t2, t3, t4 field.Element
+	t1.Multiply(&v.x, &u.z)
+	t2.Multiply(&u.x, &v.z)
+	t3.Multiply(&v.y, &u.z)
+	t4.Multiply(&u.y, &v.z)
+
+	return t1.Equal(&t2) & t3.Equal(&t4)
+}
+
+// Constant-time operations
+
+// Select sets v to a if cond == 1 and to b if cond == 0.
+func (v *projCached) Select(a, b *projCached, cond int) *projCached {
+	v.YplusX.Select(&a.YplusX, &b.YplusX, cond)
+	v.YminusX.Select(&a.YminusX, &b.YminusX, cond)
+	v.Z.Select(&a.Z, &b.Z, cond)
+	v.T2d.Select(&a.T2d, &b.T2d, cond)
+	return v
+}
+
+// Select sets v to a if cond == 1 and to b if cond == 0.
+func (v *affineCached) Select(a, b *affineCached, cond int) *affineCached {
+	v.YplusX.Select(&a.YplusX, &b.YplusX, cond)
+	v.YminusX.Select(&a.YminusX, &b.YminusX, cond)
+	v.T2d.Select(&a.T2d, &b.T2d, cond)
+	return v
+}
+
+// CondNeg negates v if cond == 1 and leaves it unchanged if cond == 0.
+func (v *projCached) CondNeg(cond int) *projCached {
+	v.YplusX.Swap(&v.YminusX, cond)
+	v.T2d.Select(new(field.Element).Negate(&v.T2d), &v.T2d, cond)
+	return v
+}
+
+// CondNeg negates v if cond == 1 and leaves it unchanged if cond == 0.
+func (v *affineCached) CondNeg(cond int) *affineCached {
+	v.YplusX.Swap(&v.YminusX, cond)
+	v.T2d.Select(new(field.Element).Negate(&v.T2d), &v.T2d, cond)
+	return v
+}

vendor/filippo.io/edwards25519/extra.go

@@ -0,0 +1,343 @@
+// Copyright (c) 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package edwards25519
+
+// This file contains additional functionality that is not included in the
+// upstream crypto/ed25519/internal/edwards25519 package.
+
+import (
+	"errors"
+
+	"filippo.io/edwards25519/field"
+)
+
+// ExtendedCoordinates returns v in extended coordinates (X:Y:Z:T) where
+// x = X/Z, y = Y/Z, and xy = T/Z as in https://eprint.iacr.org/2008/522.
+func (v *Point) ExtendedCoordinates() (X, Y, Z, T *field.Element) {
+	// This function is outlined to make the allocations inline in the caller
+	// rather than happen on the heap. Don't change the style without making
+	// sure it doesn't increase the inliner cost.
+	var e [4]field.Element
+	X, Y, Z, T = v.extendedCoordinates(&e)
+	return
+}
+
+func (v *Point) extendedCoordinates(e *[4]field.Element) (X, Y, Z, T *field.Element) {
+	checkInitialized(v)
+	X = e[0].Set(&v.x)
+	Y = e[1].Set(&v.y)
+	Z = e[2].Set(&v.z)
+	T = e[3].Set(&v.t)
+	return
+}
+
+// SetExtendedCoordinates sets v = (X:Y:Z:T) in extended coordinates where
+// x = X/Z, y = Y/Z, and xy = T/Z as in https://eprint.iacr.org/2008/522.
+//
+// If the coordinates are invalid or don't represent a valid point on the curve,
+// SetExtendedCoordinates returns nil and an error and the receiver is
+// unchanged. Otherwise, SetExtendedCoordinates returns v.
+func (v *Point) SetExtendedCoordinates(X, Y, Z, T *field.Element) (*Point, error) {
+	if !isOnCurve(X, Y, Z, T) {
+		return nil, errors.New("edwards25519: invalid point coordinates")
+	}
+	v.x.Set(X)
+	v.y.Set(Y)
+	v.z.Set(Z)
+	v.t.Set(T)
+	return v, nil
+}
+
+func isOnCurve(X, Y, Z, T *field.Element) bool {
+	var lhs, rhs field.Element
+	XX := new(field.Element).Square(X)
+	YY := new(field.Element).Square(Y)
+	ZZ := new(field.Element).Square(Z)
+	TT := new(field.Element).Square(T)
+	// -x² + y² = 1 + dx²y²
+	// -(X/Z)² + (Y/Z)² = 1 + d(T/Z)²
+	// -X² + Y² = Z² + dT²
+	lhs.Subtract(YY, XX)
+	rhs.Multiply(d, TT).Add(&rhs, ZZ)
+	if lhs.Equal(&rhs) != 1 {
+		return false
+	}
+	// xy = T/Z
+	// XY/Z² = T/Z
+	// XY = TZ
+	lhs.Multiply(X, Y)
+	rhs.Multiply(T, Z)
+	return lhs.Equal(&rhs) == 1
+}
+
+// BytesMontgomery converts v to a point on the birationally-equivalent
+// Curve25519 Montgomery curve, and returns its canonical 32 bytes encoding
+// according to RFC 7748.
+//
+// Note that BytesMontgomery only encodes the u-coordinate, so v and -v encode
+// to the same value. If v is the identity point, BytesMontgomery returns 32
+// zero bytes, analogously to the X25519 function.
+func (v *Point) BytesMontgomery() []byte {
+	// This function is outlined to make the allocations inline in the caller
+	// rather than happen on the heap.
+	var buf [32]byte
+	return v.bytesMontgomery(&buf)
+}
+
+func (v *Point) bytesMontgomery(buf *[32]byte) []byte {
+	checkInitialized(v)
+
+	// RFC 7748, Section 4.1 provides the bilinear map to calculate the
+	// Montgomery u-coordinate
+	//
+	//              u = (1 + y) / (1 - y)
+	//
+	// where y = Y / Z.
+
+	var y, recip, u field.Element
+
+	y.Multiply(&v.y, y.Invert(&v.z))        // y = Y / Z
+	recip.Invert(recip.Subtract(feOne, &y)) // r = 1/(1 - y)
+	u.Multiply(u.Add(feOne, &y), &recip)    // u = (1 + y)*r
+
+	return copyFieldElement(buf, &u)
+}
+
+// MultByCofactor sets v = 8 * p, and returns v.
+func (v *Point) MultByCofactor(p *Point) *Point {
+	checkInitialized(p)
+	result := projP1xP1{}
+	pp := (&projP2{}).FromP3(p)
+	result.Double(pp)
+	pp.FromP1xP1(&result)
+	result.Double(pp)
+	pp.FromP1xP1(&result)
+	result.Double(pp)
+	return v.fromP1xP1(&result)
+}
+
+// Given k > 0, set s = s**(2*i).
+func (s *Scalar) pow2k(k int) {
+	for i := 0; i < k; i++ {
+		s.Multiply(s, s)
+	}
+}
+
+// Invert sets s to the inverse of a nonzero scalar v, and returns s.
+//
+// If t is zero, Invert returns zero.
+func (s *Scalar) Invert(t *Scalar) *Scalar {
+	// Uses a hardcoded sliding window of width 4.
+	var table [8]Scalar
+	var tt Scalar
+	tt.Multiply(t, t)
+	table[0] = *t
+	for i := 0; i < 7; i++ {
+		table[i+1].Multiply(&table[i], &tt)
+	}
+	// Now table = [t**1, t**3, t**7, t**11, t**13, t**15]
+	// so t**k = t[k/2] for odd k
+
+	// To compute the sliding window digits, use the following Sage script:
+
+	// sage: import itertools
+	// sage: def sliding_window(w,k):
+	// ....:     digits = []
+	// ....:     while k > 0:
+	// ....:         if k % 2 == 1:
+	// ....:             kmod = k % (2**w)
+	// ....:             digits.append(kmod)
+	// ....:             k = k - kmod
+	// ....:         else:
+	// ....:             digits.append(0)
+	// ....:         k = k // 2
+	// ....:     return digits
+
+	// Now we can compute s roughly as follows:
+
+	// sage: s = 1
+	// sage: for coeff in reversed(sliding_window(4,l-2)):
+	// ....:     s = s*s
+	// ....:     if coeff > 0 :
+	// ....:         s = s*t**coeff
+
+	// This works on one bit at a time, with many runs of zeros.
+	// The digits can be collapsed into [(count, coeff)] as follows:
+
+	// sage: [(len(list(group)),d) for d,group in itertools.groupby(sliding_window(4,l-2))]
+
+	// Entries of the form (k, 0) turn into pow2k(k)
+	// Entries of the form (1, coeff) turn into a squaring and then a table lookup.
+	// We can fold the squaring into the previous pow2k(k) as pow2k(k+1).
+
+	*s = table[1/2]
+	s.pow2k(127 + 1)
+	s.Multiply(s, &table[1/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[9/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[11/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[13/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[15/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[7/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[15/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[5/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[1/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[15/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[15/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[7/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[3/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[11/2])
+	s.pow2k(5 + 1)
+	s.Multiply(s, &table[11/2])
+	s.pow2k(9 + 1)
+	s.Multiply(s, &table[9/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[3/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[3/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[3/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[9/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[7/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[3/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[13/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[7/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[9/2])
+	s.pow2k(3 + 1)
+	s.Multiply(s, &table[15/2])
+	s.pow2k(4 + 1)
+	s.Multiply(s, &table[11/2])
+
+	return s
+}
+
+// MultiScalarMult sets v = sum(scalars[i] * points[i]), and returns v.
+//
+// Execution time depends only on the lengths of the two slices, which must match.
+func (v *Point) MultiScalarMult(scalars []*Scalar, points []*Point) *Point {
+	if len(scalars) != len(points) {
+		panic("edwards25519: called MultiScalarMult with different size inputs")
+	}
+	checkInitialized(points...)
+
+	// Proceed as in the single-base case, but share doublings
+	// between each point in the multiscalar equation.
+
+	// Build lookup tables for each point
+	tables := make([]projLookupTable, len(points))
+	for i := range tables {
+		tables[i].FromP3(points[i])
+	}
+	// Compute signed radix-16 digits for each scalar
+	digits := make([][64]int8, len(scalars))
+	for i := range digits {
+		digits[i] = scalars[i].signedRadix16()
+	}
+
+	// Unwrap first loop iteration to save computing 16*identity
+	multiple := &projCached{}
+	tmp1 := &projP1xP1{}
+	tmp2 := &projP2{}
+	// Lookup-and-add the appropriate multiple of each input point
+	for j := range tables {
+		tables[j].SelectInto(multiple, digits[j][63])
+		tmp1.Add(v, multiple) // tmp1 = v + x_(j,63)*Q in P1xP1 coords
+		v.fromP1xP1(tmp1)     // update v
+	}
+	tmp2.FromP3(v) // set up tmp2 = v in P2 coords for next iteration
+	for i := 62; i >= 0; i-- {
+		tmp1.Double(tmp2)    // tmp1 =  2*(prev) in P1xP1 coords
+		tmp2.FromP1xP1(tmp1) // tmp2 =  2*(prev) in P2 coords
+		tmp1.Double(tmp2)    // tmp1 =  4*(prev) in P1xP1 coords
+		tmp2.FromP1xP1(tmp1) // tmp2 =  4*(prev) in P2 coords
+		tmp1.Double(tmp2)    // tmp1 =  8*(prev) in P1xP1 coords
+		tmp2.FromP1xP1(tmp1) // tmp2 =  8*(prev) in P2 coords
+		tmp1.Double(tmp2)    // tmp1 = 16*(prev) in P1xP1 coords
+		v.fromP1xP1(tmp1)    //    v = 16*(prev) in P3 coords
+		// Lookup-and-add the appropriate multiple of each input point
+		for j := range tables {
+			tables[j].SelectInto(multiple, digits[j][i])
+			tmp1.Add(v, multiple) // tmp1 = v + x_(j,i)*Q in P1xP1 coords
+			v.fromP1xP1(tmp1)     // update v
+		}
+		tmp2.FromP3(v) // set up tmp2 = v in P2 coords for next iteration
+	}
+	return v
+}
+
+// VarTimeMultiScalarMult sets v = sum(scalars[i] * points[i]), and returns v.
+//
+// Execution time depends on the inputs.
+func (v *Point) VarTimeMultiScalarMult(scalars []*Scalar, points []*Point) *Point {
+	if len(scalars) != len(points) {
+		panic("edwards25519: called VarTimeMultiScalarMult with different size inputs")
+	}
+	checkInitialized(points...)
+
+	// Generalize double-base NAF computation to arbitrary sizes.
+	// Here all the points are dynamic, so we only use the smaller
+	// tables.
+
+	// Build lookup tables for each point
+	tables := make([]nafLookupTable5, len(points))
+	for i := range tables {
+		tables[i].FromP3(points[i])
+	}
+	// Compute a NAF for each scalar
+	nafs := make([][256]int8, len(scalars))
+	for i := range nafs {
+		nafs[i] = scalars[i].nonAdjacentForm(5)
+	}
+
+	multiple := &projCached{}
+	tmp1 := &projP1xP1{}
+	tmp2 := &projP2{}
+	tmp2.Zero()
+
+	// Move from high to low bits, doubling the accumulator
+	// at each iteration and checking whether there is a nonzero
+	// coefficient to look up a multiple of.
+	//
+	// Skip trying to find the first nonzero coefficent, because
+	// searching might be more work than a few extra doublings.
+	for i := 255; i >= 0; i-- {
+		tmp1.Double(tmp2)
+
+		for j := range nafs {
+			if nafs[j][i] > 0 {
+				v.fromP1xP1(tmp1)
+				tables[j].SelectInto(multiple, nafs[j][i])
+				tmp1.Add(v, multiple)
+			} else if nafs[j][i] < 0 {
+				v.fromP1xP1(tmp1)
+				tables[j].SelectInto(multiple, -nafs[j][i])
+				tmp1.Sub(v, multiple)
+			}
+		}
+
+		tmp2.FromP1xP1(tmp1)
+	}
+
+	v.fromP2(tmp2)
+	return v
+}

vendor/filippo.io/edwards25519/field/fe.go

@@ -0,0 +1,419 @@
+// Copyright (c) 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package field implements fast arithmetic modulo 2^255-19.
+package field
+
+import (
+	"crypto/subtle"
+	"encoding/binary"
+	"errors"
+	"math/bits"
+)
+
+// Element represents an element of the field GF(2^255-19). Note that this
+// is not a cryptographically secure group, and should only be used to interact
+// with edwards25519.Point coordinates.
+//
+// This type works similarly to math/big.Int, and all arguments and receivers
+// are allowed to alias.
+//
+// The zero value is a valid zero element.
+type Element struct {
+	// An element t represents the integer
+	//     t.l0 + t.l1*2^51 + t.l2*2^102 + t.l3*2^153 + t.l4*2^204
+	//
+	// Between operations, all limbs are expected to be lower than 2^52.
+	l0 uint64
+	l1 uint64
+	l2 uint64
+	l3 uint64
+	l4 uint64
+}
+
+const maskLow51Bits uint64 = (1 << 51) - 1
+
+var feZero = &Element{0, 0, 0, 0, 0}
+
+// Zero sets v = 0, and returns v.
+func (v *Element) Zero() *Element {
+	*v = *feZero
+	return v
+}
+
+var feOne = &Element{1, 0, 0, 0, 0}
+
+// One sets v = 1, and returns v.
+func (v *Element) One() *Element {
+	*v = *feOne
+	return v
+}
+
+// reduce reduces v modulo 2^255 - 19 and returns it.
+func (v *Element) reduce() *Element {
+	v.carryPropagate()
+
+	// After the light reduction we now have a field element representation
+	// v < 2^255 + 2^13 * 19, but need v < 2^255 - 19.
+
+	// If v >= 2^255 - 19, then v + 19 >= 2^255, which would overflow 2^255 - 1,
+	// generating a carry. That is, c will be 0 if v < 2^255 - 19, and 1 otherwise.
+	c := (v.l0 + 19) >> 51
+	c = (v.l1 + c) >> 51
+	c = (v.l2 + c) >> 51
+	c = (v.l3 + c) >> 51
+	c = (v.l4 + c) >> 51
+
+	// If v < 2^255 - 19 and c = 0, this will be a no-op. Otherwise, it's
+	// effectively applying the reduction identity to the carry.
+	v.l0 += 19 * c
+
+	v.l1 += v.l0 >> 51
+	v.l0 = v.l0 & maskLow51Bits
+	v.l2 += v.l1 >> 51
+	v.l1 = v.l1 & maskLow51Bits
+	v.l3 += v.l2 >> 51
+	v.l2 = v.l2 & maskLow51Bits
+	v.l4 += v.l3 >> 51
+	v.l3 = v.l3 & maskLow51Bits
+	// no additional carry
+	v.l4 = v.l4 & maskLow51Bits
+
+	return v
+}
+
+// Add sets v = a + b, and returns v.
+func (v *Element) Add(a, b *Element) *Element {
+	v.l0 = a.l0 + b.l0
+	v.l1 = a.l1 + b.l1
+	v.l2 = a.l2 + b.l2
+	v.l3 = a.l3 + b.l3
+	v.l4 = a.l4 + b.l4
+	// Using the generic implementation here is actually faster than the
+	// assembly. Probably because the body of this function is so simple that
+	// the compiler can figure out better optimizations by inlining the carry
+	// propagation.
+	return v.carryPropagateGeneric()
+}
+
+// Subtract sets v = a - b, and returns v.
+func (v *Element) Subtract(a, b *Element) *Element {
+	// We first add 2 * p, to guarantee the subtraction won't underflow, and
+	// then subtract b (which can be up to 2^255 + 2^13 * 19).
+	v.l0 = (a.l0 + 0xFFFFFFFFFFFDA) - b.l0
+	v.l1 = (a.l1 + 0xFFFFFFFFFFFFE) - b.l1
+	v.l2 = (a.l2 + 0xFFFFFFFFFFFFE) - b.l2
+	v.l3 = (a.l3 + 0xFFFFFFFFFFFFE) - b.l3
+	v.l4 = (a.l4 + 0xFFFFFFFFFFFFE) - b.l4
+	return v.carryPropagate()
+}
+
+// Negate sets v = -a, and returns v.
+func (v *Element) Negate(a *Element) *Element {
+	return v.Subtract(feZero, a)
+}
+
+// Invert sets v = 1/z mod p, and returns v.
+//
+// If z == 0, Invert returns v = 0.
+func (v *Element) Invert(z *Element) *Element {
+	// Inversion is implemented as exponentiation with exponent p − 2. It uses the
+	// same sequence of 255 squarings and 11 multiplications as [Curve25519].
+	var z2, z9, z11, z2_5_0, z2_10_0, z2_20_0, z2_50_0, z2_100_0, t Element
+
+	z2.Square(z)             // 2
+	t.Square(&z2)            // 4
+	t.Square(&t)             // 8
+	z9.Multiply(&t, z)       // 9
+	z11.Multiply(&z9, &z2)   // 11
+	t.Square(&z11)           // 22
+	z2_5_0.Multiply(&t, &z9) // 31 = 2^5 - 2^0
+
+	t.Square(&z2_5_0) // 2^6 - 2^1
+	for i := 0; i < 4; i++ {
+		t.Square(&t) // 2^10 - 2^5
+	}
+	z2_10_0.Multiply(&t, &z2_5_0) // 2^10 - 2^0
+
+	t.Square(&z2_10_0) // 2^11 - 2^1
+	for i := 0; i < 9; i++ {
+		t.Square(&t) // 2^20 - 2^10
+	}
+	z2_20_0.Multiply(&t, &z2_10_0) // 2^20 - 2^0
+
+	t.Square(&z2_20_0) // 2^21 - 2^1
+	for i := 0; i < 19; i++ {
+		t.Square(&t) // 2^40 - 2^20
+	}
+	t.Multiply(&t, &z2_20_0) // 2^40 - 2^0
+
+	t.Square(&t) // 2^41 - 2^1
+	for i := 0; i < 9; i++ {
+		t.Square(&t) // 2^50 - 2^10
+	}
+	z2_50_0.Multiply(&t, &z2_10_0) // 2^50 - 2^0
+
+	t.Square(&z2_50_0) // 2^51 - 2^1
+	for i := 0; i < 49; i++ {
+		t.Square(&t) // 2^100 - 2^50
+	}
+	z2_100_0.Multiply(&t, &z2_50_0) // 2^100 - 2^0
+
+	t.Square(&z2_100_0) // 2^101 - 2^1
+	for i := 0; i < 99; i++ {
+		t.Square(&t) // 2^200 - 2^100
+	}
+	t.Multiply(&t, &z2_100_0) // 2^200 - 2^0
+
+	t.Square(&t) // 2^201 - 2^1
+	for i := 0; i < 49; i++ {
+		t.Square(&t) // 2^250 - 2^50
+	}
+	t.Multiply(&t, &z2_50_0) // 2^250 - 2^0
+
+	t.Square(&t) // 2^251 - 2^1
+	t.Square(&t) // 2^252 - 2^2
+	t.Square(&t) // 2^253 - 2^3
+	t.Square(&t) // 2^254 - 2^4
+	t.Square(&t) // 2^255 - 2^5
+
+	return v.Multiply(&t, &z11) // 2^255 - 21
+}
+
+// Set sets v = a, and returns v.
+func (v *Element) Set(a *Element) *Element {
+	*v = *a
+	return v
+}
+
+// SetBytes sets v to x, where x is a 32-byte little-endian encoding. If x is
+// not of the right length, SetUniformBytes returns nil and an error, and the
+// receiver is unchanged.
+//
+// Consistent with RFC 7748, the most significant bit (the high bit of the
+// last byte) is ignored, and non-canonical values (2^255-19 through 2^255-1)
+// are accepted. Note that this is laxer than specified by RFC 8032.
+func (v *Element) SetBytes(x []byte) (*Element, error) {
+	if len(x) != 32 {
+		return nil, errors.New("edwards25519: invalid field element input size")
+	}
+
+	// Bits 0:51 (bytes 0:8, bits 0:64, shift 0, mask 51).
+	v.l0 = binary.LittleEndian.Uint64(x[0:8])
+	v.l0 &= maskLow51Bits
+	// Bits 51:102 (bytes 6:14, bits 48:112, shift 3, mask 51).
+	v.l1 = binary.LittleEndian.Uint64(x[6:14]) >> 3
+	v.l1 &= maskLow51Bits
+	// Bits 102:153 (bytes 12:20, bits 96:160, shift 6, mask 51).
+	v.l2 = binary.LittleEndian.Uint64(x[12:20]) >> 6
+	v.l2 &= maskLow51Bits
+	// Bits 153:204 (bytes 19:27, bits 152:216, shift 1, mask 51).
+	v.l3 = binary.LittleEndian.Uint64(x[19:27]) >> 1
+	v.l3 &= maskLow51Bits
+	// Bits 204:251 (bytes 24:32, bits 192:256, shift 12, mask 51).
+	// Note: not bytes 25:33, shift 4, to avoid overread.
+	v.l4 = binary.LittleEndian.Uint64(x[24:32]) >> 12
+	v.l4 &= maskLow51Bits
+
+	return v, nil
+}
+
+// Bytes returns the canonical 32-byte little-endian encoding of v.
+func (v *Element) Bytes() []byte {
+	// This function is outlined to make the allocations inline in the caller
+	// rather than happen on the heap.
+	var out [32]byte
+	return v.bytes(&out)
+}
+
+func (v *Element) bytes(out *[32]byte) []byte {
+	t := *v
+	t.reduce()
+
+	var buf [8]byte
+	for i, l := range [5]uint64{t.l0, t.l1, t.l2, t.l3, t.l4} {
+		bitsOffset := i * 51
+		binary.LittleEndian.PutUint64(buf[:], l<<uint(bitsOffset%8))
+		for i, bb := range buf {
+			off := bitsOffset/8 + i
+			if off >= len(out) {
+				break
+			}
+			out[off] |= bb
+		}
+	}
+
+	return out[:]
+}
+
+// Equal returns 1 if v and u are equal, and 0 otherwise.
+func (v *Element) Equal(u *Element) int {
+	sa, sv := u.Bytes(), v.Bytes()
+	return subtle.ConstantTimeCompare(sa, sv)
+}
+
+// mask64Bits returns 0xffffffff if cond is 1, and 0 otherwise.
+func mask64Bits(cond int) uint64 { return ^(uint64(cond) - 1) }
+
+// Select sets v to a if cond == 1, and to b if cond == 0.
+func (v *Element) Select(a, b *Element, cond int) *Element {
+	m := mask64Bits(cond)
+	v.l0 = (m & a.l0) | (^m & b.l0)
+	v.l1 = (m & a.l1) | (^m & b.l1)
+	v.l2 = (m & a.l2) | (^m & b.l2)
+	v.l3 = (m & a.l3) | (^m & b.l3)
+	v.l4 = (m & a.l4) | (^m & b.l4)
+	return v
+}
+
+// Swap swaps v and u if cond == 1 or leaves them unchanged if cond == 0, and returns v.
+func (v *Element) Swap(u *Element, cond int) {
+	m := mask64Bits(cond)
+	t := m & (v.l0 ^ u.l0)
+	v.l0 ^= t
+	u.l0 ^= t
+	t = m & (v.l1 ^ u.l1)
+	v.l1 ^= t
+	u.l1 ^= t
+	t = m & (v.l2 ^ u.l2)
+	v.l2 ^= t
+	u.l2 ^= t
+	t = m & (v.l3 ^ u.l3)
+	v.l3 ^= t
+	u.l3 ^= t
+	t = m & (v.l4 ^ u.l4)
+	v.l4 ^= t
+	u.l4 ^= t
+}
+
+// IsNegative returns 1 if v is negative, and 0 otherwise.
+func (v *Element) IsNegative() int {
+	return int(v.Bytes()[0] & 1)
+}
+
+// Absolute sets v to |u|, and returns v.
+func (v *Element) Absolute(u *Element) *Element {
+	return v.Select(new(Element).Negate(u), u, u.IsNegative())
+}
+
+// Multiply sets v = x * y, and returns v.
+func (v *Element) Multiply(x, y *Element) *Element {
+	feMul(v, x, y)
+	return v
+}
+
+// Square sets v = x * x, and returns v.
+func (v *Element) Square(x *Element) *Element {
+	feSquare(v, x)
+	return v
+}
+
+// Mult32 sets v = x * y, and returns v.
+func (v *Element) Mult32(x *Element, y uint32) *Element {
+	x0lo, x0hi := mul51(x.l0, y)
+	x1lo, x1hi := mul51(x.l1, y)
+	x2lo, x2hi := mul51(x.l2, y)
+	x3lo, x3hi := mul51(x.l3, y)
+	x4lo, x4hi := mul51(x.l4, y)
+	v.l0 = x0lo + 19*x4hi // carried over per the reduction identity
+	v.l1 = x1lo + x0hi
+	v.l2 = x2lo + x1hi
+	v.l3 = x3lo + x2hi
+	v.l4 = x4lo + x3hi
+	// The hi portions are going to be only 32 bits, plus any previous excess,
+	// so we can skip the carry propagation.
+	return v
+}
+
+// mul51 returns lo + hi * 2⁵¹ = a * b.
+func mul51(a uint64, b uint32) (lo uint64, hi uint64) {
+	mh, ml := bits.Mul64(a, uint64(b))
+	lo = ml & maskLow51Bits
+	hi = (mh << 13) | (ml >> 51)
+	return
+}
+
+// Pow22523 set v = x^((p-5)/8), and returns v. (p-5)/8 is 2^252-3.
+func (v *Element) Pow22523(x *Element) *Element {
+	var t0, t1, t2 Element
+
+	t0.Square(x)             // x^2
+	t1.Square(&t0)           // x^4
+	t1.Square(&t1)           // x^8
+	t1.Multiply(x, &t1)      // x^9
+	t0.Multiply(&t0, &t1)    // x^11
+	t0.Square(&t0)           // x^22
+	t0.Multiply(&t1, &t0)    // x^31
+	t1.Square(&t0)           // x^62
+	for i := 1; i < 5; i++ { // x^992
+		t1.Square(&t1)
+	}
+	t0.Multiply(&t1, &t0)     // x^1023 -> 1023 = 2^10 - 1
+	t1.Square(&t0)            // 2^11 - 2
+	for i := 1; i < 10; i++ { // 2^20 - 2^10
+		t1.Square(&t1)
+	}
+	t1.Multiply(&t1, &t0)     // 2^20 - 1
+	t2.Square(&t1)            // 2^21 - 2
+	for i := 1; i < 20; i++ { // 2^40 - 2^20
+		t2.Square(&t2)
+	}
+	t1.Multiply(&t2, &t1)     // 2^40 - 1
+	t1.Square(&t1)            // 2^41 - 2
+	for i := 1; i < 10; i++ { // 2^50 - 2^10
+		t1.Square(&t1)
+	}
+	t0.Multiply(&t1, &t0)     // 2^50 - 1
+	t1.Square(&t0)            // 2^51 - 2
+	for i := 1; i < 50; i++ { // 2^100 - 2^50
+		t1.Square(&t1)
+	}
+	t1.Multiply(&t1, &t0)      // 2^100 - 1
+	t2.Square(&t1)             // 2^101 - 2
+	for i := 1; i < 100; i++ { // 2^200 - 2^100
+		t2.Square(&t2)
+	}
+	t1.Multiply(&t2, &t1)     // 2^200 - 1
+	t1.Square(&t1)            // 2^201 - 2
+	for i := 1; i < 50; i++ { // 2^250 - 2^50
+		t1.Square(&t1)
+	}
+	t0.Multiply(&t1, &t0)     // 2^250 - 1
+	t0.Square(&t0)            // 2^251 - 2
+	t0.Square(&t0)            // 2^252 - 4
+	return v.Multiply(&t0, x) // 2^252 - 3 -> x^(2^252-3)
+}
+
+// sqrtM1 is 2^((p-1)/4), which squared is equal to -1 by Euler's Criterion.
+var sqrtM1 = &Element{1718705420411056, 234908883556509,
+	2233514472574048, 2117202627021982, 765476049583133}
+
+// SqrtRatio sets r to the non-negative square root of the ratio of u and v.
+//
+// If u/v is square, SqrtRatio returns r and 1. If u/v is not square, SqrtRatio
+// sets r according to Section 4.3 of draft-irtf-cfrg-ristretto255-decaf448-00,
+// and returns r and 0.
+func (r *Element) SqrtRatio(u, v *Element) (rr *Element, wasSquare int) {
+	var a, b Element
+
+	// r = (u * v3) * (u * v7)^((p-5)/8)
+	v2 := a.Square(v)
+	uv3 := b.Multiply(u, b.Multiply(v2, v))
+	uv7 := a.Multiply(uv3, a.Square(v2))
+	r.Multiply(uv3, r.Pow22523(uv7))
+
+	check := a.Multiply(v, a.Square(r)) // check = v * r^2
+
+	uNeg := b.Negate(u)
+	correctSignSqrt := check.Equal(u)
+	flippedSignSqrt := check.Equal(uNeg)
+	flippedSignSqrtI := check.Equal(uNeg.Multiply(uNeg, sqrtM1))
+
+	rPrime := b.Multiply(r, sqrtM1) // r_prime = SQRT_M1 * r
+	// r = CT_SELECT(r_prime IF flipped_sign_sqrt | flipped_sign_sqrt_i ELSE r)
+	r.Select(rPrime, r, flippedSignSqrt|flippedSignSqrtI)
+
+	r.Absolute(r) // Choose the nonnegative square root.
+	return r, correctSignSqrt | flippedSignSqrt
+}

vendor/filippo.io/edwards25519/field/fe_amd64.go

@@ -0,0 +1,13 @@
+// Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
+
+// +build amd64,gc,!purego
+
+package field
+
+// feMul sets out = a * b. It works like feMulGeneric.
+//go:noescape
+func feMul(out *Element, a *Element, b *Element)
+
+// feSquare sets out = a * a. It works like feSquareGeneric.
+//go:noescape
+func feSquare(out *Element, a *Element)

vendor/filippo.io/edwards25519/field/fe_amd64.s

@@ -0,0 +1,378 @@
+// Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
+
+// +build amd64,gc,!purego
+
+#include "textflag.h"
+
+// func feMul(out *Element, a *Element, b *Element)
+TEXT ·feMul(SB), NOSPLIT, $0-24
+	MOVQ a+8(FP), CX
+	MOVQ b+16(FP), BX
+
+	// r0 = a0×b0
+	MOVQ (CX), AX
+	MULQ (BX)
+	MOVQ AX, DI
+	MOVQ DX, SI
+
+	// r0 += 19×a1×b4
+	MOVQ   8(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   32(BX)
+	ADDQ   AX, DI
+	ADCQ   DX, SI
+
+	// r0 += 19×a2×b3
+	MOVQ   16(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   24(BX)
+	ADDQ   AX, DI
+	ADCQ   DX, SI
+
+	// r0 += 19×a3×b2
+	MOVQ   24(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   16(BX)
+	ADDQ   AX, DI
+	ADCQ   DX, SI
+
+	// r0 += 19×a4×b1
+	MOVQ   32(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   8(BX)
+	ADDQ   AX, DI
+	ADCQ   DX, SI
+
+	// r1 = a0×b1
+	MOVQ (CX), AX
+	MULQ 8(BX)
+	MOVQ AX, R9
+	MOVQ DX, R8
+
+	// r1 += a1×b0
+	MOVQ 8(CX), AX
+	MULQ (BX)
+	ADDQ AX, R9
+	ADCQ DX, R8
+
+	// r1 += 19×a2×b4
+	MOVQ   16(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   32(BX)
+	ADDQ   AX, R9
+	ADCQ   DX, R8
+
+	// r1 += 19×a3×b3
+	MOVQ   24(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   24(BX)
+	ADDQ   AX, R9
+	ADCQ   DX, R8
+
+	// r1 += 19×a4×b2
+	MOVQ   32(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   16(BX)
+	ADDQ   AX, R9
+	ADCQ   DX, R8
+
+	// r2 = a0×b2
+	MOVQ (CX), AX
+	MULQ 16(BX)
+	MOVQ AX, R11
+	MOVQ DX, R10
+
+	// r2 += a1×b1
+	MOVQ 8(CX), AX
+	MULQ 8(BX)
+	ADDQ AX, R11
+	ADCQ DX, R10
+
+	// r2 += a2×b0
+	MOVQ 16(CX), AX
+	MULQ (BX)
+	ADDQ AX, R11
+	ADCQ DX, R10
+
+	// r2 += 19×a3×b4
+	MOVQ   24(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   32(BX)
+	ADDQ   AX, R11
+	ADCQ   DX, R10
+
+	// r2 += 19×a4×b3
+	MOVQ   32(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   24(BX)
+	ADDQ   AX, R11
+	ADCQ   DX, R10
+
+	// r3 = a0×b3
+	MOVQ (CX), AX
+	MULQ 24(BX)
+	MOVQ AX, R13
+	MOVQ DX, R12
+
+	// r3 += a1×b2
+	MOVQ 8(CX), AX
+	MULQ 16(BX)
+	ADDQ AX, R13
+	ADCQ DX, R12
+
+	// r3 += a2×b1
+	MOVQ 16(CX), AX
+	MULQ 8(BX)
+	ADDQ AX, R13
+	ADCQ DX, R12
+
+	// r3 += a3×b0
+	MOVQ 24(CX), AX
+	MULQ (BX)
+	ADDQ AX, R13
+	ADCQ DX, R12
+
+	// r3 += 19×a4×b4
+	MOVQ   32(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   32(BX)
+	ADDQ   AX, R13
+	ADCQ   DX, R12
+
+	// r4 = a0×b4
+	MOVQ (CX), AX
+	MULQ 32(BX)
+	MOVQ AX, R15
+	MOVQ DX, R14
+
+	// r4 += a1×b3
+	MOVQ 8(CX), AX
+	MULQ 24(BX)
+	ADDQ AX, R15
+	ADCQ DX, R14
+
+	// r4 += a2×b2
+	MOVQ 16(CX), AX
+	MULQ 16(BX)
+	ADDQ AX, R15
+	ADCQ DX, R14
+
+	// r4 += a3×b1
+	MOVQ 24(CX), AX
+	MULQ 8(BX)
+	ADDQ AX, R15
+	ADCQ DX, R14
+
+	// r4 += a4×b0
+	MOVQ 32(CX), AX
+	MULQ (BX)
+	ADDQ AX, R15
+	ADCQ DX, R14
+
+	// First reduction chain
+	MOVQ   $0x0007ffffffffffff, AX
+	SHLQ   $0x0d, DI, SI
+	SHLQ   $0x0d, R9, R8
+	SHLQ   $0x0d, R11, R10
+	SHLQ   $0x0d, R13, R12
+	SHLQ   $0x0d, R15, R14
+	ANDQ   AX, DI
+	IMUL3Q $0x13, R14, R14
+	ADDQ   R14, DI
+	ANDQ   AX, R9
+	ADDQ   SI, R9
+	ANDQ   AX, R11
+	ADDQ   R8, R11
+	ANDQ   AX, R13
+	ADDQ   R10, R13
+	ANDQ   AX, R15
+	ADDQ   R12, R15
+
+	// Second reduction chain (carryPropagate)
+	MOVQ   DI, SI
+	SHRQ   $0x33, SI
+	MOVQ   R9, R8
+	SHRQ   $0x33, R8
+	MOVQ   R11, R10
+	SHRQ   $0x33, R10
+	MOVQ   R13, R12
+	SHRQ   $0x33, R12
+	MOVQ   R15, R14
+	SHRQ   $0x33, R14
+	ANDQ   AX, DI
+	IMUL3Q $0x13, R14, R14
+	ADDQ   R14, DI
+	ANDQ   AX, R9
+	ADDQ   SI, R9
+	ANDQ   AX, R11
+	ADDQ   R8, R11
+	ANDQ   AX, R13
+	ADDQ   R10, R13
+	ANDQ   AX, R15
+	ADDQ   R12, R15
+
+	// Store output
+	MOVQ out+0(FP), AX
+	MOVQ DI, (AX)
+	MOVQ R9, 8(AX)
+	MOVQ R11, 16(AX)
+	MOVQ R13, 24(AX)
+	MOVQ R15, 32(AX)
+	RET
+
+// func feSquare(out *Element, a *Element)
+TEXT ·feSquare(SB), NOSPLIT, $0-16
+	MOVQ a+8(FP), CX
+
+	// r0 = l0×l0
+	MOVQ (CX), AX
+	MULQ (CX)
+	MOVQ AX, SI
+	MOVQ DX, BX
+
+	// r0 += 38×l1×l4
+	MOVQ   8(CX), AX
+	IMUL3Q $0x26, AX, AX
+	MULQ   32(CX)
+	ADDQ   AX, SI
+	ADCQ   DX, BX
+
+	// r0 += 38×l2×l3
+	MOVQ   16(CX), AX
+	IMUL3Q $0x26, AX, AX
+	MULQ   24(CX)
+	ADDQ   AX, SI
+	ADCQ   DX, BX
+
+	// r1 = 2×l0×l1
+	MOVQ (CX), AX
+	SHLQ $0x01, AX
+	MULQ 8(CX)
+	MOVQ AX, R8
+	MOVQ DX, DI
+
+	// r1 += 38×l2×l4
+	MOVQ   16(CX), AX
+	IMUL3Q $0x26, AX, AX
+	MULQ   32(CX)
+	ADDQ   AX, R8
+	ADCQ   DX, DI
+
+	// r1 += 19×l3×l3
+	MOVQ   24(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   24(CX)
+	ADDQ   AX, R8
+	ADCQ   DX, DI
+
+	// r2 = 2×l0×l2
+	MOVQ (CX), AX
+	SHLQ $0x01, AX
+	MULQ 16(CX)
+	MOVQ AX, R10
+	MOVQ DX, R9
+
+	// r2 += l1×l1
+	MOVQ 8(CX), AX
+	MULQ 8(CX)
+	ADDQ AX, R10
+	ADCQ DX, R9
+
+	// r2 += 38×l3×l4
+	MOVQ   24(CX), AX
+	IMUL3Q $0x26, AX, AX
+	MULQ   32(CX)
+	ADDQ   AX, R10
+	ADCQ   DX, R9
+
+	// r3 = 2×l0×l3
+	MOVQ (CX), AX
+	SHLQ $0x01, AX
+	MULQ 24(CX)
+	MOVQ AX, R12
+	MOVQ DX, R11
+
+	// r3 += 2×l1×l2
+	MOVQ   8(CX), AX
+	IMUL3Q $0x02, AX, AX
+	MULQ   16(CX)
+	ADDQ   AX, R12
+	ADCQ   DX, R11
+
+	// r3 += 19×l4×l4
+	MOVQ   32(CX), AX
+	IMUL3Q $0x13, AX, AX
+	MULQ   32(CX)
+	ADDQ   AX, R12
+	ADCQ   DX, R11
+
+	// r4 = 2×l0×l4
+	MOVQ (CX), AX
+	SHLQ $0x01, AX
+	MULQ 32(CX)
+	MOVQ AX, R14
+	MOVQ DX, R13
+
+	// r4 += 2×l1×l3
+	MOVQ   8(CX), AX
+	IMUL3Q $0x02, AX, AX
+	MULQ   24(CX)
+	ADDQ   AX, R14
+	ADCQ   DX, R13
+
+	// r4 += l2×l2
+	MOVQ 16(CX), AX
+	MULQ 16(CX)
+	ADDQ AX, R14
+	ADCQ DX, R13
+
+	// First reduction chain
+	MOVQ   $0x0007ffffffffffff, AX
+	SHLQ   $0x0d, SI, BX
+	SHLQ   $0x0d, R8, DI
+	SHLQ   $0x0d, R10, R9
+	SHLQ   $0x0d, R12, R11
+	SHLQ   $0x0d, R14, R13
+	ANDQ   AX, SI
+	IMUL3Q $0x13, R13, R13
+	ADDQ   R13, SI
+	ANDQ   AX, R8
+	ADDQ   BX, R8
+	ANDQ   AX, R10
+	ADDQ   DI, R10
+	ANDQ   AX, R12
+	ADDQ   R9, R12
+	ANDQ   AX, R14
+	ADDQ   R11, R14
+
+	// Second reduction chain (carryPropagate)
+	MOVQ   SI, BX
+	SHRQ   $0x33, BX
+	MOVQ   R8, DI
+	SHRQ   $0x33, DI
+	MOVQ   R10, R9
+	SHRQ   $0x33, R9
+	MOVQ   R12, R11
+	SHRQ   $0x33, R11
+	MOVQ   R14, R13
+	SHRQ   $0x33, R13
+	ANDQ   AX, SI
+	IMUL3Q $0x13, R13, R13
+	ADDQ   R13, SI
+	ANDQ   AX, R8
+	ADDQ   BX, R8
+	ANDQ   AX, R10
+	ADDQ   DI, R10
+	ANDQ   AX, R12
+	ADDQ   R9, R12
+	ANDQ   AX, R14
+	ADDQ   R11, R14
+
+	// Store output
+	MOVQ out+0(FP), AX
+	MOVQ SI, (AX)
+	MOVQ R8, 8(AX)
+	MOVQ R10, 16(AX)
+	MOVQ R12, 24(AX)
+	MOVQ R14, 32(AX)
+	RET

vendor/filippo.io/edwards25519/field/fe_amd64_noasm.go

@@ -0,0 +1,12 @@
+// Copyright (c) 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build !amd64 || !gc || purego
+// +build !amd64 !gc purego
+
+package field
+
+func feMul(v, x, y *Element) { feMulGeneric(v, x, y) }
+
+func feSquare(v, x *Element) { feSquareGeneric(v, x) }

vendor/filippo.io/edwards25519/field/fe_arm64.go

@@ -0,0 +1,16 @@
+// Copyright (c) 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build arm64 && gc && !purego
+// +build arm64,gc,!purego
+
+package field
+
+//go:noescape
+func carryPropagate(v *Element)
+
+func (v *Element) carryPropagate() *Element {
+	carryPropagate(v)
+	return v
+}

vendor/filippo.io/edwards25519/field/fe_arm64.s

@@ -0,0 +1,42 @@
+// Copyright (c) 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build arm64,gc,!purego
+
+#include "textflag.h"
+
+// carryPropagate works exactly like carryPropagateGeneric and uses the
+// same AND, ADD, and LSR+MADD instructions emitted by the compiler, but
+// avoids loading R0-R4 twice and uses LDP and STP.
+//
+// See https://golang.org/issues/43145 for the main compiler issue.
+//
+// func carryPropagate(v *Element)
+TEXT ·carryPropagate(SB),NOFRAME|NOSPLIT,$0-8
+	MOVD v+0(FP), R20
+
+	LDP 0(R20), (R0, R1)
+	LDP 16(R20), (R2, R3)
+	MOVD 32(R20), R4
+
+	AND $0x7ffffffffffff, R0, R10
+	AND $0x7ffffffffffff, R1, R11
+	AND $0x7ffffffffffff, R2, R12
+	AND $0x7ffffffffffff, R3, R13
+	AND $0x7ffffffffffff, R4, R14
+
+	ADD R0>>51, R11, R11
+	ADD R1>>51, R12, R12
+	ADD R2>>51, R13, R13
+	ADD R3>>51, R14, R14
+	// R4>>51 * 19 + R10 -> R10
+	LSR $51, R4, R21
+	MOVD $19, R22
+	MADD R22, R10, R21, R10
+
+	STP (R10, R11), 0(R20)
+	STP (R12, R13), 16(R20)
+	MOVD R14, 32(R20)
+
+	RET

vendor/filippo.io/edwards25519/field/fe_arm64_noasm.go

@@ -0,0 +1,12 @@
+// Copyright (c) 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build !arm64 || !gc || purego
+// +build !arm64 !gc purego
+
+package field
+
+func (v *Element) carryPropagate() *Element {
+	return v.carryPropagateGeneric()
+}

vendor/filippo.io/edwards25519/field/fe_generic.go

@@ -0,0 +1,264 @@
+// Copyright (c) 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package field
+
+import "math/bits"
+
+// uint128 holds a 128-bit number as two 64-bit limbs, for use with the
+// bits.Mul64 and bits.Add64 intrinsics.
+type uint128 struct {
+	lo, hi uint64
+}
+
+// mul64 returns a * b.
+func mul64(a, b uint64) uint128 {
+	hi, lo := bits.Mul64(a, b)
+	return uint128{lo, hi}
+}
+
+// addMul64 returns v + a * b.
+func addMul64(v uint128, a, b uint64) uint128 {
+	hi, lo := bits.Mul64(a, b)
+	lo, c := bits.Add64(lo, v.lo, 0)
+	hi, _ = bits.Add64(hi, v.hi, c)
+	return uint128{lo, hi}
+}
+
+// shiftRightBy51 returns a >> 51. a is assumed to be at most 115 bits.
+func shiftRightBy51(a uint128) uint64 {
+	return (a.hi << (64 - 51)) | (a.lo >> 51)
+}
+
+func feMulGeneric(v, a, b *Element) {
+	a0 := a.l0
+	a1 := a.l1
+	a2 := a.l2
+	a3 := a.l3
+	a4 := a.l4
+
+	b0 := b.l0
+	b1 := b.l1
+	b2 := b.l2
+	b3 := b.l3
+	b4 := b.l4
+
+	// Limb multiplication works like pen-and-paper columnar multiplication, but
+	// with 51-bit limbs instead of digits.
+	//
+	//                          a4   a3   a2   a1   a0  x
+	//                          b4   b3   b2   b1   b0  =
+	//                         ------------------------
+	//                        a4b0 a3b0 a2b0 a1b0 a0b0  +
+	//                   a4b1 a3b1 a2b1 a1b1 a0b1       +
+	//              a4b2 a3b2 a2b2 a1b2 a0b2            +
+	//         a4b3 a3b3 a2b3 a1b3 a0b3                 +
+	//    a4b4 a3b4 a2b4 a1b4 a0b4                      =
+	//   ----------------------------------------------
+	//      r8   r7   r6   r5   r4   r3   r2   r1   r0
+	//
+	// We can then use the reduction identity (a * 2²⁵⁵ + b = a * 19 + b) to
+	// reduce the limbs that would overflow 255 bits. r5 * 2²⁵⁵ becomes 19 * r5,
+	// r6 * 2³⁰⁶ becomes 19 * r6 * 2⁵¹, etc.
+	//
+	// Reduction can be carried out simultaneously to multiplication. For
+	// example, we do not compute r5: whenever the result of a multiplication
+	// belongs to r5, like a1b4, we multiply it by 19 and add the result to r0.
+	//
+	//            a4b0    a3b0    a2b0    a1b0    a0b0  +
+	//            a3b1    a2b1    a1b1    a0b1 19×a4b1  +
+	//            a2b2    a1b2    a0b2 19×a4b2 19×a3b2  +
+	//            a1b3    a0b3 19×a4b3 19×a3b3 19×a2b3  +
+	//            a0b4 19×a4b4 19×a3b4 19×a2b4 19×a1b4  =
+	//           --------------------------------------
+	//              r4      r3      r2      r1      r0
+	//
+	// Finally we add up the columns into wide, overlapping limbs.
+
+	a1_19 := a1 * 19
+	a2_19 := a2 * 19
+	a3_19 := a3 * 19
+	a4_19 := a4 * 19
+
+	// r0 = a0×b0 + 19×(a1×b4 + a2×b3 + a3×b2 + a4×b1)
+	r0 := mul64(a0, b0)
+	r0 = addMul64(r0, a1_19, b4)
+	r0 = addMul64(r0, a2_19, b3)
+	r0 = addMul64(r0, a3_19, b2)
+	r0 = addMul64(r0, a4_19, b1)
+
+	// r1 = a0×b1 + a1×b0 + 19×(a2×b4 + a3×b3 + a4×b2)
+	r1 := mul64(a0, b1)
+	r1 = addMul64(r1, a1, b0)
+	r1 = addMul64(r1, a2_19, b4)
+	r1 = addMul64(r1, a3_19, b3)
+	r1 = addMul64(r1, a4_19, b2)
+
+	// r2 = a0×b2 + a1×b1 + a2×b0 + 19×(a3×b4 + a4×b3)
+	r2 := mul64(a0, b2)
+	r2 = addMul64(r2, a1, b1)
+	r2 = addMul64(r2, a2, b0)
+	r2 = addMul64(r2, a3_19, b4)
+	r2 = addMul64(r2, a4_19, b3)
+
+	// r3 = a0×b3 + a1×b2 + a2×b1 + a3×b0 + 19×a4×b4
+	r3 := mul64(a0, b3)
+	r3 = addMul64(r3, a1, b2)
+	r3 = addMul64(r3, a2, b1)
+	r3 = addMul64(r3, a3, b0)
+	r3 = addMul64(r3, a4_19, b4)
+
+	// r4 = a0×b4 + a1×b3 + a2×b2 + a3×b1 + a4×b0
+	r4 := mul64(a0, b4)
+	r4 = addMul64(r4, a1, b3)
+	r4 = addMul64(r4, a2, b2)
+	r4 = addMul64(r4, a3, b1)
+	r4 = addMul64(r4, a4, b0)
+
+	// After the multiplication, we need to reduce (carry) the five coefficients
+	// to obtain a result with limbs that are at most slightly larger than 2⁵¹,
+	// to respect the Element invariant.
+	//
+	// Overall, the reduction works the same as carryPropagate, except with
+	// wider inputs: we take the carry for each coefficient by shifting it right
+	// by 51, and add it to the limb above it. The top carry is multiplied by 19
+	// according to the reduction identity and added to the lowest limb.
+	//
+	// The largest coefficient (r0) will be at most 111 bits, which guarantees
+	// that all carries are at most 111 - 51 = 60 bits, which fits in a uint64.
+	//
+	//     r0 = a0×b0 + 19×(a1×b4 + a2×b3 + a3×b2 + a4×b1)
+	//     r0 < 2⁵²×2⁵² + 19×(2⁵²×2⁵² + 2⁵²×2⁵² + 2⁵²×2⁵² + 2⁵²×2⁵²)
+	//     r0 < (1 + 19 × 4) × 2⁵² × 2⁵²
+	//     r0 < 2⁷ × 2⁵² × 2⁵²
+	//     r0 < 2¹¹¹
+	//
+	// Moreover, the top coefficient (r4) is at most 107 bits, so c4 is at most
+	// 56 bits, and c4 * 19 is at most 61 bits, which again fits in a uint64 and
+	// allows us to easily apply the reduction identity.
+	//
+	//     r4 = a0×b4 + a1×b3 + a2×b2 + a3×b1 + a4×b0
+	//     r4 < 5 × 2⁵² × 2⁵²
+	//     r4 < 2¹⁰⁷
+	//
+
+	c0 := shiftRightBy51(r0)
+	c1 := shiftRightBy51(r1)
+	c2 := shiftRightBy51(r2)
+	c3 := shiftRightBy51(r3)
+	c4 := shiftRightBy51(r4)
+
+	rr0 := r0.lo&maskLow51Bits + c4*19
+	rr1 := r1.lo&maskLow51Bits + c0
+	rr2 := r2.lo&maskLow51Bits + c1
+	rr3 := r3.lo&maskLow51Bits + c2
+	rr4 := r4.lo&maskLow51Bits + c3
+
+	// Now all coefficients fit into 64-bit registers but are still too large to
+	// be passed around as a Element. We therefore do one last carry chain,
+	// where the carries will be small enough to fit in the wiggle room above 2⁵¹.
+	*v = Element{rr0, rr1, rr2, rr3, rr4}
+	v.carryPropagate()
+}
+
+func feSquareGeneric(v, a *Element) {
+	l0 := a.l0
+	l1 := a.l1
+	l2 := a.l2
+	l3 := a.l3
+	l4 := a.l4
+
+	// Squaring works precisely like multiplication above, but thanks to its
+	// symmetry we get to group a few terms together.
+	//
+	//                          l4   l3   l2   l1   l0  x
+	//                          l4   l3   l2   l1   l0  =
+	//                         ------------------------
+	//                        l4l0 l3l0 l2l0 l1l0 l0l0  +
+	//                   l4l1 l3l1 l2l1 l1l1 l0l1       +
+	//              l4l2 l3l2 l2l2 l1l2 l0l2            +
+	//         l4l3 l3l3 l2l3 l1l3 l0l3                 +
+	//    l4l4 l3l4 l2l4 l1l4 l0l4                      =
+	//   ----------------------------------------------
+	//      r8   r7   r6   r5   r4   r3   r2   r1   r0
+	//
+	//            l4l0    l3l0    l2l0    l1l0    l0l0  +
+	//            l3l1    l2l1    l1l1    l0l1 19×l4l1  +
+	//            l2l2    l1l2    l0l2 19×l4l2 19×l3l2  +
+	//            l1l3    l0l3 19×l4l3 19×l3l3 19×l2l3  +
+	//            l0l4 19×l4l4 19×l3l4 19×l2l4 19×l1l4  =
+	//           --------------------------------------
+	//              r4      r3      r2      r1      r0
+	//
+	// With precomputed 2×, 19×, and 2×19× terms, we can compute each limb with
+	// only three Mul64 and four Add64, instead of five and eight.
+
+	l0_2 := l0 * 2
+	l1_2 := l1 * 2
+
+	l1_38 := l1 * 38
+	l2_38 := l2 * 38
+	l3_38 := l3 * 38
+
+	l3_19 := l3 * 19
+	l4_19 := l4 * 19
+
+	// r0 = l0×l0 + 19×(l1×l4 + l2×l3 + l3×l2 + l4×l1) = l0×l0 + 19×2×(l1×l4 + l2×l3)
+	r0 := mul64(l0, l0)
+	r0 = addMul64(r0, l1_38, l4)
+	r0 = addMul64(r0, l2_38, l3)
+
+	// r1 = l0×l1 + l1×l0 + 19×(l2×l4 + l3×l3 + l4×l2) = 2×l0×l1 + 19×2×l2×l4 + 19×l3×l3
+	r1 := mul64(l0_2, l1)
+	r1 = addMul64(r1, l2_38, l4)
+	r1 = addMul64(r1, l3_19, l3)
+
+	// r2 = l0×l2 + l1×l1 + l2×l0 + 19×(l3×l4 + l4×l3) = 2×l0×l2 + l1×l1 + 19×2×l3×l4
+	r2 := mul64(l0_2, l2)
+	r2 = addMul64(r2, l1, l1)
+	r2 = addMul64(r2, l3_38, l4)
+
+	// r3 = l0×l3 + l1×l2 + l2×l1 + l3×l0 + 19×l4×l4 = 2×l0×l3 + 2×l1×l2 + 19×l4×l4
+	r3 := mul64(l0_2, l3)
+	r3 = addMul64(r3, l1_2, l2)
+	r3 = addMul64(r3, l4_19, l4)
+
+	// r4 = l0×l4 + l1×l3 + l2×l2 + l3×l1 + l4×l0 = 2×l0×l4 + 2×l1×l3 + l2×l2
+	r4 := mul64(l0_2, l4)
+	r4 = addMul64(r4, l1_2, l3)
+	r4 = addMul64(r4, l2, l2)
+
+	c0 := shiftRightBy51(r0)
+	c1 := shiftRightBy51(r1)
+	c2 := shiftRightBy51(r2)
+	c3 := shiftRightBy51(r3)
+	c4 := shiftRightBy51(r4)
+
+	rr0 := r0.lo&maskLow51Bits + c4*19
+	rr1 := r1.lo&maskLow51Bits + c0
+	rr2 := r2.lo&maskLow51Bits + c1
+	rr3 := r3.lo&maskLow51Bits + c2
+	rr4 := r4.lo&maskLow51Bits + c3
+
+	*v = Element{rr0, rr1, rr2, rr3, rr4}
+	v.carryPropagate()
+}
+
+// carryPropagate brings the limbs below 52 bits by applying the reduction
+// identity (a * 2²⁵⁵ + b = a * 19 + b) to the l4 carry.
+func (v *Element) carryPropagateGeneric() *Element {
+	c0 := v.l0 >> 51
+	c1 := v.l1 >> 51
+	c2 := v.l2 >> 51
+	c3 := v.l3 >> 51
+	c4 := v.l4 >> 51
+
+	v.l0 = v.l0&maskLow51Bits + c4*19
+	v.l1 = v.l1&maskLow51Bits + c0
+	v.l2 = v.l2&maskLow51Bits + c1
+	v.l3 = v.l3&maskLow51Bits + c2
+	v.l4 = v.l4&maskLow51Bits + c3
+
+	return v
+}

vendor/filippo.io/edwards25519/scalarmult.go

@@ -0,0 +1,214 @@
+// Copyright (c) 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package edwards25519
+
+import "sync"
+
+// basepointTable is a set of 32 affineLookupTables, where table i is generated
+// from 256i * basepoint. It is precomputed the first time it's used.
+func basepointTable() *[32]affineLookupTable {
+	basepointTablePrecomp.initOnce.Do(func() {
+		p := NewGeneratorPoint()
+		for i := 0; i < 32; i++ {
+			basepointTablePrecomp.table[i].FromP3(p)
+			for j := 0; j < 8; j++ {
+				p.Add(p, p)
+			}
+		}
+	})
+	return &basepointTablePrecomp.table
+}
+
+var basepointTablePrecomp struct {
+	table    [32]affineLookupTable
+	initOnce sync.Once
+}
+
+// ScalarBaseMult sets v = x * B, where B is the canonical generator, and
+// returns v.
+//
+// The scalar multiplication is done in constant time.
+func (v *Point) ScalarBaseMult(x *Scalar) *Point {
+	basepointTable := basepointTable()
+
+	// Write x = sum(x_i * 16^i) so  x*B = sum( B*x_i*16^i )
+	// as described in the Ed25519 paper
+	//
+	// Group even and odd coefficients
+	// x*B     = x_0*16^0*B + x_2*16^2*B + ... + x_62*16^62*B
+	//         + x_1*16^1*B + x_3*16^3*B + ... + x_63*16^63*B
+	// x*B     = x_0*16^0*B + x_2*16^2*B + ... + x_62*16^62*B
+	//    + 16*( x_1*16^0*B + x_3*16^2*B + ... + x_63*16^62*B)
+	//
+	// We use a lookup table for each i to get x_i*16^(2*i)*B
+	// and do four doublings to multiply by 16.
+	digits := x.signedRadix16()
+
+	multiple := &affineCached{}
+	tmp1 := &projP1xP1{}
+	tmp2 := &projP2{}
+
+	// Accumulate the odd components first
+	v.Set(NewIdentityPoint())
+	for i := 1; i < 64; i += 2 {
+		basepointTable[i/2].SelectInto(multiple, digits[i])
+		tmp1.AddAffine(v, multiple)
+		v.fromP1xP1(tmp1)
+	}
+
+	// Multiply by 16
+	tmp2.FromP3(v)       // tmp2 =    v in P2 coords
+	tmp1.Double(tmp2)    // tmp1 =  2*v in P1xP1 coords
+	tmp2.FromP1xP1(tmp1) // tmp2 =  2*v in P2 coords
+	tmp1.Double(tmp2)    // tmp1 =  4*v in P1xP1 coords
+	tmp2.FromP1xP1(tmp1) // tmp2 =  4*v in P2 coords
+	tmp1.Double(tmp2)    // tmp1 =  8*v in P1xP1 coords
+	tmp2.FromP1xP1(tmp1) // tmp2 =  8*v in P2 coords
+	tmp1.Double(tmp2)    // tmp1 = 16*v in P1xP1 coords
+	v.fromP1xP1(tmp1)    // now v = 16*(odd components)
+
+	// Accumulate the even components
+	for i := 0; i < 64; i += 2 {
+		basepointTable[i/2].SelectInto(multiple, digits[i])
+		tmp1.AddAffine(v, multiple)
+		v.fromP1xP1(tmp1)
+	}
+
+	return v
+}
+
+// ScalarMult sets v = x * q, and returns v.
+//
+// The scalar multiplication is done in constant time.
+func (v *Point) ScalarMult(x *Scalar, q *Point) *Point {
+	checkInitialized(q)
+
+	var table projLookupTable
+	table.FromP3(q)
+
+	// Write x = sum(x_i * 16^i)
+	// so  x*Q = sum( Q*x_i*16^i )
+	//         = Q*x_0 + 16*(Q*x_1 + 16*( ... + Q*x_63) ... )
+	//           <------compute inside out---------
+	//
+	// We use the lookup table to get the x_i*Q values
+	// and do four doublings to compute 16*Q
+	digits := x.signedRadix16()
+
+	// Unwrap first loop iteration to save computing 16*identity
+	multiple := &projCached{}
+	tmp1 := &projP1xP1{}
+	tmp2 := &projP2{}
+	table.SelectInto(multiple, digits[63])
+
+	v.Set(NewIdentityPoint())
+	tmp1.Add(v, multiple) // tmp1 = x_63*Q in P1xP1 coords
+	for i := 62; i >= 0; i-- {
+		tmp2.FromP1xP1(tmp1) // tmp2 =    (prev) in P2 coords
+		tmp1.Double(tmp2)    // tmp1 =  2*(prev) in P1xP1 coords
+		tmp2.FromP1xP1(tmp1) // tmp2 =  2*(prev) in P2 coords
+		tmp1.Double(tmp2)    // tmp1 =  4*(prev) in P1xP1 coords
+		tmp2.FromP1xP1(tmp1) // tmp2 =  4*(prev) in P2 coords
+		tmp1.Double(tmp2)    // tmp1 =  8*(prev) in P1xP1 coords
+		tmp2.FromP1xP1(tmp1) // tmp2 =  8*(prev) in P2 coords
+		tmp1.Double(tmp2)    // tmp1 = 16*(prev) in P1xP1 coords
+		v.fromP1xP1(tmp1)    //    v = 16*(prev) in P3 coords
+		table.SelectInto(multiple, digits[i])
+		tmp1.Add(v, multiple) // tmp1 = x_i*Q + 16*(prev) in P1xP1 coords
+	}
+	v.fromP1xP1(tmp1)
+	return v
+}
+
+// basepointNafTable is the nafLookupTable8 for the basepoint.
+// It is precomputed the first time it's used.
+func basepointNafTable() *nafLookupTable8 {
+	basepointNafTablePrecomp.initOnce.Do(func() {
+		basepointNafTablePrecomp.table.FromP3(NewGeneratorPoint())
+	})
+	return &basepointNafTablePrecomp.table
+}
+
+var basepointNafTablePrecomp struct {
+	table    nafLookupTable8
+	initOnce sync.Once
+}
+
+// VarTimeDoubleScalarBaseMult sets v = a * A + b * B, where B is the canonical
+// generator, and returns v.
+//
+// Execution time depends on the inputs.
+func (v *Point) VarTimeDoubleScalarBaseMult(a *Scalar, A *Point, b *Scalar) *Point {
+	checkInitialized(A)
+
+	// Similarly to the single variable-base approach, we compute
+	// digits and use them with a lookup table.  However, because
+	// we are allowed to do variable-time operations, we don't
+	// need constant-time lookups or constant-time digit
+	// computations.
+	//
+	// So we use a non-adjacent form of some width w instead of
+	// radix 16.  This is like a binary representation (one digit
+	// for each binary place) but we allow the digits to grow in
+	// magnitude up to 2^{w-1} so that the nonzero digits are as
+	// sparse as possible.  Intuitively, this "condenses" the
+	// "mass" of the scalar onto sparse coefficients (meaning
+	// fewer additions).
+
+	basepointNafTable := basepointNafTable()
+	var aTable nafLookupTable5
+	aTable.FromP3(A)
+	// Because the basepoint is fixed, we can use a wider NAF
+	// corresponding to a bigger table.
+	aNaf := a.nonAdjacentForm(5)
+	bNaf := b.nonAdjacentForm(8)
+
+	// Find the first nonzero coefficient.
+	i := 255
+	for j := i; j >= 0; j-- {
+		if aNaf[j] != 0 || bNaf[j] != 0 {
+			break
+		}
+	}
+
+	multA := &projCached{}
+	multB := &affineCached{}
+	tmp1 := &projP1xP1{}
+	tmp2 := &projP2{}
+	tmp2.Zero()
+
+	// Move from high to low bits, doubling the accumulator
+	// at each iteration and checking whether there is a nonzero
+	// coefficient to look up a multiple of.
+	for ; i >= 0; i-- {
+		tmp1.Double(tmp2)
+
+		// Only update v if we have a nonzero coeff to add in.
+		if aNaf[i] > 0 {
+			v.fromP1xP1(tmp1)
+			aTable.SelectInto(multA, aNaf[i])
+			tmp1.Add(v, multA)
+		} else if aNaf[i] < 0 {
+			v.fromP1xP1(tmp1)
+			aTable.SelectInto(multA, -aNaf[i])
+			tmp1.Sub(v, multA)
+		}
+
+		if bNaf[i] > 0 {
+			v.fromP1xP1(tmp1)
+			basepointNafTable.SelectInto(multB, bNaf[i])
+			tmp1.AddAffine(v, multB)
+		} else if bNaf[i] < 0 {
+			v.fromP1xP1(tmp1)
+			basepointNafTable.SelectInto(multB, -bNaf[i])
+			tmp1.SubAffine(v, multB)
+		}
+
+		tmp2.FromP1xP1(tmp1)
+	}
+
+	v.fromP2(tmp2)
+	return v
+}

vendor/filippo.io/edwards25519/tables.go

@@ -0,0 +1,129 @@
+// Copyright (c) 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package edwards25519
+
+import (
+	"crypto/subtle"
+)
+
+// A dynamic lookup table for variable-base, constant-time scalar muls.
+type projLookupTable struct {
+	points [8]projCached
+}
+
+// A precomputed lookup table for fixed-base, constant-time scalar muls.
+type affineLookupTable struct {
+	points [8]affineCached
+}
+
+// A dynamic lookup table for variable-base, variable-time scalar muls.
+type nafLookupTable5 struct {
+	points [8]projCached
+}
+
+// A precomputed lookup table for fixed-base, variable-time scalar muls.
+type nafLookupTable8 struct {
+	points [64]affineCached
+}
+
+// Constructors.
+
+// Builds a lookup table at runtime. Fast.
+func (v *projLookupTable) FromP3(q *Point) {
+	// Goal: v.points[i] = (i+1)*Q, i.e., Q, 2Q, ..., 8Q
+	// This allows lookup of -8Q, ..., -Q, 0, Q, ..., 8Q
+	v.points[0].FromP3(q)
+	tmpP3 := Point{}
+	tmpP1xP1 := projP1xP1{}
+	for i := 0; i < 7; i++ {
+		// Compute (i+1)*Q as Q + i*Q and convert to a ProjCached
+		// This is needlessly complicated because the API has explicit
+		// recievers instead of creating stack objects and relying on RVO
+		v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.Add(q, &v.points[i])))
+	}
+}
+
+// This is not optimised for speed; fixed-base tables should be precomputed.
+func (v *affineLookupTable) FromP3(q *Point) {
+	// Goal: v.points[i] = (i+1)*Q, i.e., Q, 2Q, ..., 8Q
+	// This allows lookup of -8Q, ..., -Q, 0, Q, ..., 8Q
+	v.points[0].FromP3(q)
+	tmpP3 := Point{}
+	tmpP1xP1 := projP1xP1{}
+	for i := 0; i < 7; i++ {
+		// Compute (i+1)*Q as Q + i*Q and convert to AffineCached
+		v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.AddAffine(q, &v.points[i])))
+	}
+}
+
+// Builds a lookup table at runtime. Fast.
+func (v *nafLookupTable5) FromP3(q *Point) {
+	// Goal: v.points[i] = (2*i+1)*Q, i.e., Q, 3Q, 5Q, ..., 15Q
+	// This allows lookup of -15Q, ..., -3Q, -Q, 0, Q, 3Q, ..., 15Q
+	v.points[0].FromP3(q)
+	q2 := Point{}
+	q2.Add(q, q)
+	tmpP3 := Point{}
+	tmpP1xP1 := projP1xP1{}
+	for i := 0; i < 7; i++ {
+		v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.Add(&q2, &v.points[i])))
+	}
+}
+
+// This is not optimised for speed; fixed-base tables should be precomputed.
+func (v *nafLookupTable8) FromP3(q *Point) {
+	v.points[0].FromP3(q)
+	q2 := Point{}
+	q2.Add(q, q)
+	tmpP3 := Point{}
+	tmpP1xP1 := projP1xP1{}
+	for i := 0; i < 63; i++ {
+		v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.AddAffine(&q2, &v.points[i])))
+	}
+}
+
+// Selectors.
+
+// Set dest to x*Q, where -8 <= x <= 8, in constant time.
+func (v *projLookupTable) SelectInto(dest *projCached, x int8) {
+	// Compute xabs = |x|
+	xmask := x >> 7
+	xabs := uint8((x + xmask) ^ xmask)
+
+	dest.Zero()
+	for j := 1; j <= 8; j++ {
+		// Set dest = j*Q if |x| = j
+		cond := subtle.ConstantTimeByteEq(xabs, uint8(j))
+		dest.Select(&v.points[j-1], dest, cond)
+	}
+	// Now dest = |x|*Q, conditionally negate to get x*Q
+	dest.CondNeg(int(xmask & 1))
+}
+
+// Set dest to x*Q, where -8 <= x <= 8, in constant time.
+func (v *affineLookupTable) SelectInto(dest *affineCached, x int8) {
+	// Compute xabs = |x|
+	xmask := x >> 7
+	xabs := uint8((x + xmask) ^ xmask)
+
+	dest.Zero()
+	for j := 1; j <= 8; j++ {
+		// Set dest = j*Q if |x| = j
+		cond := subtle.ConstantTimeByteEq(xabs, uint8(j))
+		dest.Select(&v.points[j-1], dest, cond)
+	}
+	// Now dest = |x|*Q, conditionally negate to get x*Q
+	dest.CondNeg(int(xmask & 1))
+}
+
+// Given odd x with 0 < x < 2^4, return x*Q (in variable time).
+func (v *nafLookupTable5) SelectInto(dest *projCached, x int8) {
+	*dest = v.points[x/2]
+}
+
+// Given odd x with 0 < x < 2^7, return x*Q (in variable time).
+func (v *nafLookupTable8) SelectInto(dest *affineCached, x int8) {
+	*dest = v.points[x/2]
+}

vendor/github.com/SevereCloud/vksdk/v2/.golangci.yml

@@ -57,6 +57,8 @@ linters:
     - grouper
     - decorder
     - containedctx
+    # - execinquery # FIXME: panic in 1.46.0
+    - nosprintfhostport
 
 # - wrapcheck # TODO: v3 Fix
 # - testpackage # TODO: Fix testpackage
@@ -87,6 +89,7 @@ linters:
 # - varnamelen
 # - errchkjson
 # - maintidx
+# - nonamedreturns
 
 # depricated
 # - maligned

vendor/github.com/SevereCloud/vksdk/v2/README.md

@@ -1,7 +1,7 @@
 # VK SDK for Golang
 
 [![PkgGoDev](https://pkg.go.dev/badge/github.com/SevereCloud/vksdk/v2/v2)](https://pkg.go.dev/github.com/SevereCloud/vksdk/v2?tab=subdirectories)
-[![VK Developers](https://img.shields.io/badge/developers-%234a76a8.svg?logo=VK&logoColor=white)](https://vk.com/dev/)
+[![VK Developers](https://img.shields.io/badge/developers-%234a76a8.svg?logo=VK&logoColor=white)](https://dev.vk.com/)
 [![codecov](https://codecov.io/gh/SevereCloud/vksdk/branch/master/graph/badge.svg)](https://codecov.io/gh/SevereCloud/vksdk)
 [![VK chat](https://img.shields.io/badge/VK%20chat-%234a76a8.svg?logo=VK&logoColor=white)](https://vk.me/join/AJQ1d6Or8Q00Y_CSOESfbqGt)
 [![release](https://img.shields.io/github/v/tag/SevereCloud/vksdk?label=release)](https://github.com/SevereCloud/vksdk/releases)

vendor/github.com/SevereCloud/vksdk/v2/api/account.go

@@ -141,6 +141,8 @@ func (vk *VK) AccountSetInfo(params Params) (response int, err error) {
 // AccountSetNameInMenu sets an application screen name
 // (up to 17 characters), that is shown to the user in the left menu.
 //
+// Deprecated: This method is deprecated and may be disabled soon, please avoid
+//
 // https://vk.com/dev/account.setNameInMenu
 func (vk *VK) AccountSetNameInMenu(params Params) (response int, err error) {
 	err = vk.RequestUnmarshal("account.setNameInMenu", &response, params)

vendor/github.com/SevereCloud/vksdk/v2/api/store.go

@@ -1,4 +1,4 @@
-package api // import "github.com/SevereCloud/vksdk/api"
+package api // import "github.com/SevereCloud/vksdk/v2/api"
 
 import (
 	"github.com/SevereCloud/vksdk/v2/object"

vendor/github.com/SevereCloud/vksdk/v2/api/video.go

@@ -235,6 +235,17 @@ func (vk *VK) VideoGetCommentsExtended(params Params) (response VideoGetComments
 	return
 }
 
+// VideoLiveGetCategoriesResponse struct.
+type VideoLiveGetCategoriesResponse []object.VideoLiveCategory
+
+// VideoLiveGetCategories method.
+//
+// https://vk.com/dev/video.liveGetCategories
+func (vk *VK) VideoLiveGetCategories(params Params) (response VideoLiveGetCategoriesResponse, err error) {
+	err = vk.RequestUnmarshal("video.liveGetCategories", &response, params)
+	return
+}
+
 // VideoRemoveFromAlbum allows you to remove the video from the album.
 //
 // https://vk.com/dev/video.removeFromAlbum
@@ -336,3 +347,27 @@ func (vk *VK) VideoSearchExtended(params Params) (response VideoSearchExtendedRe
 
 	return
 }
+
+// VideoStartStreamingResponse struct.
+type VideoStartStreamingResponse object.VideoLive
+
+// VideoStartStreaming method.
+//
+// https://vk.com/dev/video.startStreaming
+func (vk *VK) VideoStartStreaming(params Params) (response VideoStartStreamingResponse, err error) {
+	err = vk.RequestUnmarshal("video.startStreaming", &response, params)
+	return
+}
+
+// VideoStopStreamingResponse struct.
+type VideoStopStreamingResponse struct {
+	UniqueViewers int `json:"unique_viewers"`
+}
+
+// VideoStopStreaming method.
+//
+// https://vk.com/dev/video.stopStreaming
+func (vk *VK) VideoStopStreaming(params Params) (response VideoStopStreamingResponse, err error) {
+	err = vk.RequestUnmarshal("video.stopStreaming", &response, params)
+	return
+}

vendor/github.com/SevereCloud/vksdk/v2/doc.go

@@ -7,6 +7,6 @@ package vksdk
 
 // Module constants.
 const (
-	Version = "2.13.1"
+	Version = "2.14.1"
 	API     = "5.131"
 )

vendor/github.com/SevereCloud/vksdk/v2/events/context.go

@@ -15,3 +15,8 @@ func GroupIDFromContext(ctx context.Context) int {
 func EventIDFromContext(ctx context.Context) string {
 	return ctx.Value(internal.EventIDKey).(string)
 }
+
+// VersionFromContext returns the version from context.
+func VersionFromContext(ctx context.Context) string {
+	return ctx.Value(internal.EventVersionKey).(string)
+}

vendor/github.com/SevereCloud/vksdk/v2/events/events.go

@@ -81,6 +81,7 @@ type GroupEvent struct {
 	Object  json.RawMessage `json:"object"`
 	GroupID int             `json:"group_id"`
 	EventID string          `json:"event_id"`
+	V       string          `json:"v"`
 	Secret  string          `json:"secret"`
 }
 
@@ -158,6 +159,7 @@ func NewFuncList() *FuncList {
 func (fl FuncList) Handler(ctx context.Context, e GroupEvent) error { // nolint:gocyclo
 	ctx = context.WithValue(ctx, internal.GroupIDKey, e.GroupID)
 	ctx = context.WithValue(ctx, internal.EventIDKey, e.EventID)
+	ctx = context.WithValue(ctx, internal.EventVersionKey, e.V)
 
 	if sliceFunc, ok := fl.special[e.Type]; ok {
 		for _, f := range sliceFunc {

vendor/github.com/SevereCloud/vksdk/v2/internal/transport.go

@@ -28,6 +28,7 @@ const (
 	CallbackRetryCounterKey
 	CallbackRetryAfterKey
 	CallbackRemove
+	EventVersionKey
 )
 
 // ContextClient return *http.Client.

vendor/github.com/SevereCloud/vksdk/v2/object/account.go

@@ -84,7 +84,6 @@ type AccountAccountCounters struct {
 
 // AccountInfo struct.
 type AccountInfo struct {
-
 	// Country code.
 	Country string `json:"country"`
 

vendor/github.com/SevereCloud/vksdk/v2/object/groups.go

@@ -210,7 +210,7 @@ type GroupsGroup struct {
 	MainSection     int                  `json:"main_section,omitempty"`
 	OnlineStatus    GroupsOnlineStatus   `json:"online_status,omitempty"` // Status of replies in community messages
 	AgeLimits       int                  `json:"age_limits,omitempty"`    // Information whether age limit
-	BanInfo         GroupsGroupBanInfo   `json:"ban_info,omitempty"`      // User ban info
+	BanInfo         *GroupsGroupBanInfo  `json:"ban_info,omitempty"`      // User ban info
 	Addresses       GroupsAddressesInfo  `json:"addresses,omitempty"`     // Info about addresses in Groups
 	LiveCovers      GroupsLiveCovers     `json:"live_covers,omitempty"`
 	CropPhoto       UsersCropPhoto       `json:"crop_photo,omitempty"`
@@ -963,10 +963,10 @@ type GroupsOnlineStatus struct {
 
 // GroupsOwnerXtrBanInfo struct.
 type GroupsOwnerXtrBanInfo struct {
-	BanInfo GroupsBanInfo `json:"ban_info"`
-	Group   GroupsGroup   `json:"group"`
-	Profile UsersUser     `json:"profile"`
-	Type    string        `json:"type"`
+	BanInfo *GroupsBanInfo `json:"ban_info"`
+	Group   GroupsGroup    `json:"group"`
+	Profile UsersUser      `json:"profile"`
+	Type    string         `json:"type"`
 }
 
 // GroupsSubjectItem struct.

vendor/github.com/SevereCloud/vksdk/v2/object/messages.go

@@ -409,7 +409,6 @@ type MessageContentSource struct {
 	Type                        string `json:"type"`
 	MessageContentSourceMessage        // type message
 	MessageContentSourceURL            // type url
-
 }
 
 // NewMessageContentSourceMessage ...

vendor/github.com/SevereCloud/vksdk/v2/object/users.go

@@ -24,110 +24,113 @@ const (
 
 // UsersUser struct.
 type UsersUser struct {
-	ID                     int                   `json:"id"`
-	FirstName              string                `json:"first_name"`
-	LastName               string                `json:"last_name"`
-	FirstNameNom           string                `json:"first_name_nom"`
-	FirstNameGen           string                `json:"first_name_gen"`
-	FirstNameDat           string                `json:"first_name_dat"`
-	FirstNameAcc           string                `json:"first_name_acc"`
-	FirstNameIns           string                `json:"first_name_ins"`
-	FirstNameAbl           string                `json:"first_name_abl"`
-	LastNameNom            string                `json:"last_name_nom"`
-	LastNameGen            string                `json:"last_name_gen"`
-	LastNameDat            string                `json:"last_name_dat"`
-	LastNameAcc            string                `json:"last_name_acc"`
-	LastNameIns            string                `json:"last_name_ins"`
-	LastNameAbl            string                `json:"last_name_abl"`
-	MaidenName             string                `json:"maiden_name"`
-	Sex                    int                   `json:"sex"`
-	Nickname               string                `json:"nickname"`
-	Domain                 string                `json:"domain"`
-	ScreenName             string                `json:"screen_name"`
-	Bdate                  string                `json:"bdate"`
-	City                   BaseObject            `json:"city"`
-	Country                BaseObject            `json:"country"`
-	Photo50                string                `json:"photo_50"`
-	Photo100               string                `json:"photo_100"`
-	Photo200               string                `json:"photo_200"`
-	PhotoMax               string                `json:"photo_max"`
-	Photo200Orig           string                `json:"photo_200_orig"`
-	Photo400Orig           string                `json:"photo_400_orig"`
-	PhotoMaxOrig           string                `json:"photo_max_orig"`
-	PhotoID                string                `json:"photo_id"`
-	FriendStatus           int                   `json:"friend_status"` // see FriendStatus const
-	OnlineApp              int                   `json:"online_app"`
-	Online                 BaseBoolInt           `json:"online"`
-	OnlineMobile           BaseBoolInt           `json:"online_mobile"`
-	HasPhoto               BaseBoolInt           `json:"has_photo"`
-	HasMobile              BaseBoolInt           `json:"has_mobile"`
-	IsClosed               BaseBoolInt           `json:"is_closed"`
-	IsFriend               BaseBoolInt           `json:"is_friend"`
-	IsFavorite             BaseBoolInt           `json:"is_favorite"`
-	IsHiddenFromFeed       BaseBoolInt           `json:"is_hidden_from_feed"`
-	CanAccessClosed        BaseBoolInt           `json:"can_access_closed"`
-	CanBeInvitedGroup      BaseBoolInt           `json:"can_be_invited_group"`
-	CanPost                BaseBoolInt           `json:"can_post"`
-	CanSeeAllPosts         BaseBoolInt           `json:"can_see_all_posts"`
-	CanSeeAudio            BaseBoolInt           `json:"can_see_audio"`
-	CanWritePrivateMessage BaseBoolInt           `json:"can_write_private_message"`
-	CanSendFriendRequest   BaseBoolInt           `json:"can_send_friend_request"`
-	CanCallFromGroup       BaseBoolInt           `json:"can_call_from_group"`
-	Verified               BaseBoolInt           `json:"verified"`
-	Trending               BaseBoolInt           `json:"trending"`
-	Blacklisted            BaseBoolInt           `json:"blacklisted"`
-	BlacklistedByMe        BaseBoolInt           `json:"blacklisted_by_me"`
-	Facebook               string                `json:"facebook"`
-	FacebookName           string                `json:"facebook_name"`
-	Twitter                string                `json:"twitter"`
-	Instagram              string                `json:"instagram"`
-	Site                   string                `json:"site"`
-	Status                 string                `json:"status"`
-	StatusAudio            AudioAudio            `json:"status_audio"`
-	LastSeen               UsersLastSeen         `json:"last_seen"`
-	CropPhoto              UsersCropPhoto        `json:"crop_photo"`
-	FollowersCount         int                   `json:"followers_count"`
-	CommonCount            int                   `json:"common_count"`
-	Occupation             UsersOccupation       `json:"occupation"`
-	Career                 []UsersCareer         `json:"career"`
-	Military               []UsersMilitary       `json:"military"`
-	University             int                   `json:"university"`
-	UniversityName         string                `json:"university_name"`
-	Faculty                int                   `json:"faculty"`
-	FacultyName            string                `json:"faculty_name"`
-	Graduation             int                   `json:"graduation"`
-	EducationForm          string                `json:"education_form"`
-	EducationStatus        string                `json:"education_status"`
-	HomeTown               string                `json:"home_town"`
-	Relation               int                   `json:"relation"`
-	Personal               UsersPersonal         `json:"personal"`
-	Interests              string                `json:"interests"`
-	Music                  string                `json:"music"`
-	Activities             string                `json:"activities"`
-	Movies                 string                `json:"movies"`
-	Tv                     string                `json:"tv"`
-	Books                  string                `json:"books"`
-	Games                  string                `json:"games"`
-	Universities           []UsersUniversity     `json:"universities"`
-	Schools                []UsersSchool         `json:"schools"`
-	About                  string                `json:"about"`
-	Relatives              []UsersRelative       `json:"relatives"`
-	Quotes                 string                `json:"quotes"`
-	Lists                  []int                 `json:"lists"`
-	Deactivated            string                `json:"deactivated"`
-	WallDefault            string                `json:"wall_default"`
-	Timezone               int                   `json:"timezone"`
-	Exports                UsersExports          `json:"exports"`
-	Counters               UsersUserCounters     `json:"counters"`
-	MobilePhone            string                `json:"mobile_phone"`
-	HomePhone              string                `json:"home_phone"`
-	FoundWith              int                   `json:"found_with"` // TODO: check it
-	OnlineInfo             UsersOnlineInfo       `json:"online_info"`
-	Mutual                 FriendsRequestsMutual `json:"mutual"`
-	TrackCode              string                `json:"track_code"`
-	RelationPartner        UsersUserMin          `json:"relation_partner"`
-	Type                   string                `json:"type"`
-	Skype                  string                `json:"skype"`
+	ID                     int         `json:"id"`
+	FirstName              string      `json:"first_name"`
+	LastName               string      `json:"last_name"`
+	FirstNameNom           string      `json:"first_name_nom"`
+	FirstNameGen           string      `json:"first_name_gen"`
+	FirstNameDat           string      `json:"first_name_dat"`
+	FirstNameAcc           string      `json:"first_name_acc"`
+	FirstNameIns           string      `json:"first_name_ins"`
+	FirstNameAbl           string      `json:"first_name_abl"`
+	LastNameNom            string      `json:"last_name_nom"`
+	LastNameGen            string      `json:"last_name_gen"`
+	LastNameDat            string      `json:"last_name_dat"`
+	LastNameAcc            string      `json:"last_name_acc"`
+	LastNameIns            string      `json:"last_name_ins"`
+	LastNameAbl            string      `json:"last_name_abl"`
+	MaidenName             string      `json:"maiden_name"`
+	Sex                    int         `json:"sex"`
+	Nickname               string      `json:"nickname"`
+	Domain                 string      `json:"domain"`
+	ScreenName             string      `json:"screen_name"`
+	Bdate                  string      `json:"bdate"`
+	City                   BaseObject  `json:"city"`
+	Country                BaseObject  `json:"country"`
+	Photo50                string      `json:"photo_50"`
+	Photo100               string      `json:"photo_100"`
+	Photo200               string      `json:"photo_200"`
+	PhotoMax               string      `json:"photo_max"`
+	Photo200Orig           string      `json:"photo_200_orig"`
+	Photo400Orig           string      `json:"photo_400_orig"`
+	PhotoMaxOrig           string      `json:"photo_max_orig"`
+	PhotoID                string      `json:"photo_id"`
+	FriendStatus           int         `json:"friend_status"` // see FriendStatus const
+	OnlineApp              int         `json:"online_app"`
+	Online                 BaseBoolInt `json:"online"`
+	OnlineMobile           BaseBoolInt `json:"online_mobile"`
+	HasPhoto               BaseBoolInt `json:"has_photo"`
+	HasMobile              BaseBoolInt `json:"has_mobile"`
+	IsClosed               BaseBoolInt `json:"is_closed"`
+	IsFriend               BaseBoolInt `json:"is_friend"`
+	IsFavorite             BaseBoolInt `json:"is_favorite"`
+	IsHiddenFromFeed       BaseBoolInt `json:"is_hidden_from_feed"`
+	CanAccessClosed        BaseBoolInt `json:"can_access_closed"`
+	CanBeInvitedGroup      BaseBoolInt `json:"can_be_invited_group"`
+	CanPost                BaseBoolInt `json:"can_post"`
+	CanSeeAllPosts         BaseBoolInt `json:"can_see_all_posts"`
+	CanSeeAudio            BaseBoolInt `json:"can_see_audio"`
+	CanWritePrivateMessage BaseBoolInt `json:"can_write_private_message"`
+	CanSendFriendRequest   BaseBoolInt `json:"can_send_friend_request"`
+	CanCallFromGroup       BaseBoolInt `json:"can_call_from_group"`
+	Verified               BaseBoolInt `json:"verified"`
+	Trending               BaseBoolInt `json:"trending"`
+	Blacklisted            BaseBoolInt `json:"blacklisted"`
+	BlacklistedByMe        BaseBoolInt `json:"blacklisted_by_me"`
+	// Deprecated: Facebook и Instagram запрещены в России, Meta признана экстремистской организацией...
+	Facebook string `json:"facebook"`
+	// Deprecated: Facebook и Instagram запрещены в России, Meta признана экстремистской организацией...
+	FacebookName string `json:"facebook_name"`
+	// Deprecated: Facebook и Instagram запрещены в России, Meta признана экстремистской организацией...
+	Instagram       string                `json:"instagram"`
+	Twitter         string                `json:"twitter"`
+	Site            string                `json:"site"`
+	Status          string                `json:"status"`
+	StatusAudio     AudioAudio            `json:"status_audio"`
+	LastSeen        UsersLastSeen         `json:"last_seen"`
+	CropPhoto       UsersCropPhoto        `json:"crop_photo"`
+	FollowersCount  int                   `json:"followers_count"`
+	CommonCount     int                   `json:"common_count"`
+	Occupation      UsersOccupation       `json:"occupation"`
+	Career          []UsersCareer         `json:"career"`
+	Military        []UsersMilitary       `json:"military"`
+	University      int                   `json:"university"`
+	UniversityName  string                `json:"university_name"`
+	Faculty         int                   `json:"faculty"`
+	FacultyName     string                `json:"faculty_name"`
+	Graduation      int                   `json:"graduation"`
+	EducationForm   string                `json:"education_form"`
+	EducationStatus string                `json:"education_status"`
+	HomeTown        string                `json:"home_town"`
+	Relation        int                   `json:"relation"`
+	Personal        UsersPersonal         `json:"personal"`
+	Interests       string                `json:"interests"`
+	Music           string                `json:"music"`
+	Activities      string                `json:"activities"`
+	Movies          string                `json:"movies"`
+	Tv              string                `json:"tv"`
+	Books           string                `json:"books"`
+	Games           string                `json:"games"`
+	Universities    []UsersUniversity     `json:"universities"`
+	Schools         []UsersSchool         `json:"schools"`
+	About           string                `json:"about"`
+	Relatives       []UsersRelative       `json:"relatives"`
+	Quotes          string                `json:"quotes"`
+	Lists           []int                 `json:"lists"`
+	Deactivated     string                `json:"deactivated"`
+	WallDefault     string                `json:"wall_default"`
+	Timezone        int                   `json:"timezone"`
+	Exports         UsersExports          `json:"exports"`
+	Counters        UsersUserCounters     `json:"counters"`
+	MobilePhone     string                `json:"mobile_phone"`
+	HomePhone       string                `json:"home_phone"`
+	FoundWith       int                   `json:"found_with"` // TODO: check it
+	OnlineInfo      UsersOnlineInfo       `json:"online_info"`
+	Mutual          FriendsRequestsMutual `json:"mutual"`
+	TrackCode       string                `json:"track_code"`
+	RelationPartner UsersUserMin          `json:"relation_partner"`
+	Type            string                `json:"type"`
+	Skype           string                `json:"skype"`
 }
 
 // ToMention return mention.

vendor/github.com/SevereCloud/vksdk/v2/object/video.go

@@ -31,7 +31,7 @@ type VideoVideo struct {
 	CanLike BaseBoolInt `json:"can_like"`
 
 	// Information whether current user can download the video.
-	CanDownload BaseBoolInt `json:"can_download"`
+	CanDownload int `json:"can_download"`
 
 	// Information whether current user can repost this video.
 	CanRepost         BaseBoolInt       `json:"can_repost"`
@@ -297,3 +297,27 @@ type VideoVideoImage struct {
 	BaseImage
 	WithPadding BaseBoolInt `json:"with_padding"`
 }
+
+// VideoLive struct.
+type VideoLive struct {
+	OwnerID     int             `json:"owner_id"`
+	VideoID     int             `json:"video_id"`
+	Name        string          `json:"name"`
+	Description string          `json:"description"`
+	AccessKey   string          `json:"access_key"`
+	Stream      VideoLiveStream `json:"stream"`
+}
+
+// VideoLiveStream struct.
+type VideoLiveStream struct {
+	URL     string `json:"url"`
+	Key     string `json:"key"`
+	OKMPURL string `json:"okmp_url"`
+}
+
+// VideoLiveCategory struct.
+type VideoLiveCategory struct {
+	ID      int                 `json:"id"`
+	Label   string              `json:"label"`
+	Sublist []VideoLiveCategory `json:"sublist,omitempty"`
+}

vendor/github.com/bwmarrin/discordgo/.gitignore

@@ -0,0 +1,5 @@
+# IDE-specific metadata
+.idea/
+
+# Environment variables. Useful for examples.
+.env

vendor/github.com/bwmarrin/discordgo/.golangci.yml

@@ -0,0 +1,19 @@
+linters:
+  disable-all: true
+  enable:
+    # - staticcheck
+    # - unused
+    - golint
+
+linters-settings:
+  staticcheck:
+    go: "1.13"
+
+    checks: ["all"]
+
+  unused:
+    go: "1.13"
+
+issues:
+  include:
+    - EXC0002

vendor/github.com/bwmarrin/discordgo/.travis.yml

@@ -3,6 +3,9 @@ go:
     - 1.13.x
     - 1.14.x
     - 1.15.x
+    - 1.16.x
+    - 1.17.x
+    - 1.18.x
 env:
     - GO111MODULE=on
 install:

vendor/github.com/bwmarrin/discordgo/README.md

@@ -1,8 +1,8 @@
 # DiscordGo
 
-[![GoDoc](https://godoc.org/github.com/bwmarrin/discordgo?status.svg)](https://godoc.org/github.com/bwmarrin/discordgo) [![Go report](http://goreportcard.com/badge/bwmarrin/discordgo)](http://goreportcard.com/report/bwmarrin/discordgo) [![Build Status](https://travis-ci.org/bwmarrin/discordgo.svg?branch=master)](https://travis-ci.org/bwmarrin/discordgo) [![Discord Gophers](https://img.shields.io/badge/Discord%20Gophers-%23discordgo-blue.svg)](https://discord.gg/0f1SbxBZjYoCtNPP) [![Discord API](https://img.shields.io/badge/Discord%20API-%23go_discordgo-blue.svg)](https://discord.com/invite/discord-api)
+[![Go Reference](https://pkg.go.dev/badge/github.com/bwmarrin/discordgo.svg)](https://pkg.go.dev/github.com/bwmarrin/discordgo) [![Go Report Card](https://goreportcard.com/badge/github.com/bwmarrin/discordgo)](https://goreportcard.com/report/github.com/bwmarrin/discordgo) [![Build Status](https://travis-ci.com/bwmarrin/discordgo.svg?branch=master)](https://travis-ci.com/bwmarrin/discordgo) [![Discord Gophers](https://img.shields.io/badge/Discord%20Gophers-%23discordgo-blue.svg)](https://discord.gg/golang) [![Discord API](https://img.shields.io/badge/Discord%20API-%23go_discordgo-blue.svg)](https://discord.com/invite/discord-api)
 
-<img align="right" src="http://bwmarrin.github.io/discordgo/img/discordgo.png">
+<img align="right" alt="DiscordGo logo" src="docs/img/discordgo.svg" width="400">
 
 DiscordGo is a [Go](https://golang.org/) package that provides low level 
 bindings to the [Discord](https://discord.com/) chat client API. DiscordGo 
@@ -22,7 +22,7 @@ tool that wraps `ffmpeg` to create opus encoded audio appropriate for use with
 Discord (and DiscordGo).
 
 **For help with this package or general Go discussion, please join the [Discord 
-Gophers](https://discord.gg/0f1SbxBZjYq9jLBk) chat server.**
+Gophers](https://discord.gg/golang) chat server.**
 
 ## Getting Started
 
@@ -64,8 +64,8 @@ The DiscordGo code is fairly well documented at this point and is currently
 the only documentation available.  Both GoDoc and GoWalker (below) present
 that information in a nice format.
 
-- [![GoDoc](https://godoc.org/github.com/bwmarrin/discordgo?status.svg)](https://godoc.org/github.com/bwmarrin/discordgo) 
-- [![Go Walker](http://gowalker.org/api/v1/badge)](https://gowalker.org/github.com/bwmarrin/discordgo) 
+- [![Go Reference](https://pkg.go.dev/badge/github.com/bwmarrin/discordgo.svg)](https://pkg.go.dev/github.com/bwmarrin/discordgo)
+- [![Go Walker](https://gowalker.org/api/v1/badge)](https://gowalker.org/github.com/bwmarrin/discordgo) 
 - Hand crafted documentation coming eventually.
 
 

vendor/github.com/bwmarrin/discordgo/components.go

@@ -0,0 +1,241 @@
+package discordgo
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+// ComponentType is type of component.
+type ComponentType uint
+
+// MessageComponent types.
+const (
+	ActionsRowComponent ComponentType = 1
+	ButtonComponent     ComponentType = 2
+	SelectMenuComponent ComponentType = 3
+	TextInputComponent  ComponentType = 4
+)
+
+// MessageComponent is a base interface for all message components.
+type MessageComponent interface {
+	json.Marshaler
+	Type() ComponentType
+}
+
+type unmarshalableMessageComponent struct {
+	MessageComponent
+}
+
+// UnmarshalJSON is a helper function to unmarshal MessageComponent object.
+func (umc *unmarshalableMessageComponent) UnmarshalJSON(src []byte) error {
+	var v struct {
+		Type ComponentType `json:"type"`
+	}
+	err := json.Unmarshal(src, &v)
+	if err != nil {
+		return err
+	}
+
+	switch v.Type {
+	case ActionsRowComponent:
+		umc.MessageComponent = &ActionsRow{}
+	case ButtonComponent:
+		umc.MessageComponent = &Button{}
+	case SelectMenuComponent:
+		umc.MessageComponent = &SelectMenu{}
+	case TextInputComponent:
+		umc.MessageComponent = &TextInput{}
+	default:
+		return fmt.Errorf("unknown component type: %d", v.Type)
+	}
+	return json.Unmarshal(src, umc.MessageComponent)
+}
+
+// MessageComponentFromJSON is a helper function for unmarshaling message components
+func MessageComponentFromJSON(b []byte) (MessageComponent, error) {
+	var u unmarshalableMessageComponent
+	err := u.UnmarshalJSON(b)
+	if err != nil {
+		return nil, fmt.Errorf("failed to unmarshal into MessageComponent: %w", err)
+	}
+	return u.MessageComponent, nil
+}
+
+// ActionsRow is a container for components within one row.
+type ActionsRow struct {
+	Components []MessageComponent `json:"components"`
+}
+
+// MarshalJSON is a method for marshaling ActionsRow to a JSON object.
+func (r ActionsRow) MarshalJSON() ([]byte, error) {
+	type actionsRow ActionsRow
+
+	return Marshal(struct {
+		actionsRow
+		Type ComponentType `json:"type"`
+	}{
+		actionsRow: actionsRow(r),
+		Type:       r.Type(),
+	})
+}
+
+// UnmarshalJSON is a helper function to unmarshal Actions Row.
+func (r *ActionsRow) UnmarshalJSON(data []byte) error {
+	var v struct {
+		RawComponents []unmarshalableMessageComponent `json:"components"`
+	}
+	err := json.Unmarshal(data, &v)
+	if err != nil {
+		return err
+	}
+	r.Components = make([]MessageComponent, len(v.RawComponents))
+	for i, v := range v.RawComponents {
+		r.Components[i] = v.MessageComponent
+	}
+
+	return err
+}
+
+// Type is a method to get the type of a component.
+func (r ActionsRow) Type() ComponentType {
+	return ActionsRowComponent
+}
+
+// ButtonStyle is style of button.
+type ButtonStyle uint
+
+// Button styles.
+const (
+	// PrimaryButton is a button with blurple color.
+	PrimaryButton ButtonStyle = 1
+	// SecondaryButton is a button with grey color.
+	SecondaryButton ButtonStyle = 2
+	// SuccessButton is a button with green color.
+	SuccessButton ButtonStyle = 3
+	// DangerButton is a button with red color.
+	DangerButton ButtonStyle = 4
+	// LinkButton is a special type of button which navigates to a URL. Has grey color.
+	LinkButton ButtonStyle = 5
+)
+
+// ComponentEmoji represents button emoji, if it does have one.
+type ComponentEmoji struct {
+	Name     string `json:"name,omitempty"`
+	ID       string `json:"id,omitempty"`
+	Animated bool   `json:"animated,omitempty"`
+}
+
+// Button represents button component.
+type Button struct {
+	Label    string         `json:"label"`
+	Style    ButtonStyle    `json:"style"`
+	Disabled bool           `json:"disabled"`
+	Emoji    ComponentEmoji `json:"emoji"`
+
+	// NOTE: Only button with LinkButton style can have link. Also, URL is mutually exclusive with CustomID.
+	URL      string `json:"url,omitempty"`
+	CustomID string `json:"custom_id,omitempty"`
+}
+
+// MarshalJSON is a method for marshaling Button to a JSON object.
+func (b Button) MarshalJSON() ([]byte, error) {
+	type button Button
+
+	if b.Style == 0 {
+		b.Style = PrimaryButton
+	}
+
+	return Marshal(struct {
+		button
+		Type ComponentType `json:"type"`
+	}{
+		button: button(b),
+		Type:   b.Type(),
+	})
+}
+
+// Type is a method to get the type of a component.
+func (Button) Type() ComponentType {
+	return ButtonComponent
+}
+
+// SelectMenuOption represents an option for a select menu.
+type SelectMenuOption struct {
+	Label       string         `json:"label,omitempty"`
+	Value       string         `json:"value"`
+	Description string         `json:"description"`
+	Emoji       ComponentEmoji `json:"emoji"`
+	// Determines whenever option is selected by default or not.
+	Default bool `json:"default"`
+}
+
+// SelectMenu represents select menu component.
+type SelectMenu struct {
+	CustomID string `json:"custom_id,omitempty"`
+	// The text which will be shown in the menu if there's no default options or all options was deselected and component was closed.
+	Placeholder string `json:"placeholder"`
+	// This value determines the minimal amount of selected items in the menu.
+	MinValues *int `json:"min_values,omitempty"`
+	// This value determines the maximal amount of selected items in the menu.
+	// If MaxValues or MinValues are greater than one then the user can select multiple items in the component.
+	MaxValues int                `json:"max_values,omitempty"`
+	Options   []SelectMenuOption `json:"options"`
+	Disabled  bool               `json:"disabled"`
+}
+
+// Type is a method to get the type of a component.
+func (SelectMenu) Type() ComponentType {
+	return SelectMenuComponent
+}
+
+// MarshalJSON is a method for marshaling SelectMenu to a JSON object.
+func (m SelectMenu) MarshalJSON() ([]byte, error) {
+	type selectMenu SelectMenu
+
+	return Marshal(struct {
+		selectMenu
+		Type ComponentType `json:"type"`
+	}{
+		selectMenu: selectMenu(m),
+		Type:       m.Type(),
+	})
+}
+
+// TextInput represents text input component.
+type TextInput struct {
+	CustomID    string         `json:"custom_id"`
+	Label       string         `json:"label"`
+	Style       TextInputStyle `json:"style"`
+	Placeholder string         `json:"placeholder,omitempty"`
+	Value       string         `json:"value,omitempty"`
+	Required    bool           `json:"required"`
+	MinLength   int            `json:"min_length,omitempty"`
+	MaxLength   int            `json:"max_length,omitempty"`
+}
+
+// Type is a method to get the type of a component.
+func (TextInput) Type() ComponentType {
+	return TextInputComponent
+}
+
+// MarshalJSON is a method for marshaling TextInput to a JSON object.
+func (m TextInput) MarshalJSON() ([]byte, error) {
+	type inputText TextInput
+
+	return Marshal(struct {
+		inputText
+		Type ComponentType `json:"type"`
+	}{
+		inputText: inputText(m),
+		Type:      m.Type(),
+	})
+}
+
+// TextInputStyle is style of text in TextInput component.
+type TextInputStyle uint
+
+// Text styles
+const (
+	TextInputShort     TextInputStyle = 1
+	TextInputParagraph TextInputStyle = 2
+)

vendor/github.com/bwmarrin/discordgo/discord.go

@@ -0,0 +1,60 @@
+// Discordgo - Discord bindings for Go
+// Available at https://github.com/bwmarrin/discordgo
+
+// Copyright 2015-2016 Bruce Marriner <bruce@sqls.net>.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This file contains high level helper functions and easy entry points for the
+// entire discordgo package.  These functions are being developed and are very
+// experimental at this point.  They will most likely change so please use the
+// low level functions if that's a problem.
+
+// Package discordgo provides Discord binding for Go
+package discordgo
+
+import (
+	"net/http"
+	"runtime"
+	"time"
+)
+
+// VERSION of DiscordGo, follows Semantic Versioning. (http://semver.org/)
+const VERSION = "0.25.0"
+
+// New creates a new Discord session with provided token.
+// If the token is for a bot, it must be prefixed with "Bot "
+// 		e.g. "Bot ..."
+// Or if it is an OAuth2 token, it must be prefixed with "Bearer "
+//		e.g. "Bearer ..."
+func New(token string) (s *Session, err error) {
+
+	// Create an empty Session interface.
+	s = &Session{
+		State:                  NewState(),
+		Ratelimiter:            NewRatelimiter(),
+		StateEnabled:           true,
+		Compress:               true,
+		ShouldReconnectOnError: true,
+		ShouldRetryOnRateLimit: true,
+		ShardID:                0,
+		ShardCount:             1,
+		MaxRestRetries:         3,
+		Client:                 &http.Client{Timeout: (20 * time.Second)},
+		UserAgent:              "DiscordBot (https://github.com/bwmarrin/discordgo, v" + VERSION + ")",
+		sequence:               new(int64),
+		LastHeartbeatAck:       time.Now().UTC(),
+	}
+
+	// Initilize the Identify Package with defaults
+	// These can be modified prior to calling Open()
+	s.Identify.Compress = true
+	s.Identify.LargeThreshold = 250
+	s.Identify.Properties.OS = runtime.GOOS
+	s.Identify.Properties.Browser = "DiscordGo v" + VERSION
+	s.Identify.Intents = IntentsAllWithoutPrivileged
+	s.Identify.Token = token
+	s.Token = token
+
+	return
+}

vendor/github.com/bwmarrin/discordgo/endpoints.go

@@ -0,0 +1,213 @@
+// Discordgo - Discord bindings for Go
+// Available at https://github.com/bwmarrin/discordgo
+
+// Copyright 2015-2016 Bruce Marriner <bruce@sqls.net>.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This file contains variables for all known Discord end points.  All functions
+// throughout the Discordgo package use these variables for all connections
+// to Discord.  These are all exported and you may modify them if needed.
+
+package discordgo
+
+import "strconv"
+
+// APIVersion is the Discord API version used for the REST and Websocket API.
+var APIVersion = "9"
+
+// Known Discord API Endpoints.
+var (
+	EndpointStatus     = "https://status.discord.com/api/v2/"
+	EndpointSm         = EndpointStatus + "scheduled-maintenances/"
+	EndpointSmActive   = EndpointSm + "active.json"
+	EndpointSmUpcoming = EndpointSm + "upcoming.json"
+
+	EndpointDiscord        = "https://discord.com/"
+	EndpointAPI            = EndpointDiscord + "api/v" + APIVersion + "/"
+	EndpointGuilds         = EndpointAPI + "guilds/"
+	EndpointChannels       = EndpointAPI + "channels/"
+	EndpointUsers          = EndpointAPI + "users/"
+	EndpointGateway        = EndpointAPI + "gateway"
+	EndpointGatewayBot     = EndpointGateway + "/bot"
+	EndpointWebhooks       = EndpointAPI + "webhooks/"
+	EndpointStickers       = EndpointAPI + "stickers/"
+	EndpointStageInstances = EndpointAPI + "stage-instances"
+
+	EndpointCDN             = "https://cdn.discordapp.com/"
+	EndpointCDNAttachments  = EndpointCDN + "attachments/"
+	EndpointCDNAvatars      = EndpointCDN + "avatars/"
+	EndpointCDNIcons        = EndpointCDN + "icons/"
+	EndpointCDNSplashes     = EndpointCDN + "splashes/"
+	EndpointCDNChannelIcons = EndpointCDN + "channel-icons/"
+	EndpointCDNBanners      = EndpointCDN + "banners/"
+	EndpointCDNGuilds       = EndpointCDN + "guilds/"
+
+	EndpointVoice        = EndpointAPI + "/voice/"
+	EndpointVoiceRegions = EndpointVoice + "regions"
+
+	// TODO: EndpointUserGuildMember
+
+	EndpointUser               = func(uID string) string { return EndpointUsers + uID }
+	EndpointUserAvatar         = func(uID, aID string) string { return EndpointCDNAvatars + uID + "/" + aID + ".png" }
+	EndpointUserAvatarAnimated = func(uID, aID string) string { return EndpointCDNAvatars + uID + "/" + aID + ".gif" }
+	EndpointDefaultUserAvatar  = func(uDiscriminator string) string {
+		uDiscriminatorInt, _ := strconv.Atoi(uDiscriminator)
+		return EndpointCDN + "embed/avatars/" + strconv.Itoa(uDiscriminatorInt%5) + ".png"
+	}
+	EndpointUserBanner = func(uID, cID string) string {
+		return EndpointCDNBanners + uID + "/" + cID + ".png"
+	}
+	EndpointUserBannerAnimated = func(uID, cID string) string {
+		return EndpointCDNBanners + uID + "/" + cID + ".gif"
+	}
+
+	EndpointUserGuilds      = func(uID string) string { return EndpointUsers + uID + "/guilds" }
+	EndpointUserGuild       = func(uID, gID string) string { return EndpointUsers + uID + "/guilds/" + gID }
+	EndpointUserChannels    = func(uID string) string { return EndpointUsers + uID + "/channels" }
+	EndpointUserConnections = func(uID string) string { return EndpointUsers + uID + "/connections" }
+
+	EndpointGuild                    = func(gID string) string { return EndpointGuilds + gID }
+	EndpointGuildThreads             = func(gID string) string { return EndpointGuild(gID) + "/threads" }
+	EndpointGuildActiveThreads       = func(gID string) string { return EndpointGuildThreads(gID) + "/active" }
+	EndpointGuildPreview             = func(gID string) string { return EndpointGuilds + gID + "/preview" }
+	EndpointGuildChannels            = func(gID string) string { return EndpointGuilds + gID + "/channels" }
+	EndpointGuildMembers             = func(gID string) string { return EndpointGuilds + gID + "/members" }
+	EndpointGuildMembersSearch       = func(gID string) string { return EndpointGuildMembers(gID) + "/search" }
+	EndpointGuildMember              = func(gID, uID string) string { return EndpointGuilds + gID + "/members/" + uID }
+	EndpointGuildMemberRole          = func(gID, uID, rID string) string { return EndpointGuilds + gID + "/members/" + uID + "/roles/" + rID }
+	EndpointGuildBans                = func(gID string) string { return EndpointGuilds + gID + "/bans" }
+	EndpointGuildBan                 = func(gID, uID string) string { return EndpointGuilds + gID + "/bans/" + uID }
+	EndpointGuildIntegrations        = func(gID string) string { return EndpointGuilds + gID + "/integrations" }
+	EndpointGuildIntegration         = func(gID, iID string) string { return EndpointGuilds + gID + "/integrations/" + iID }
+	EndpointGuildRoles               = func(gID string) string { return EndpointGuilds + gID + "/roles" }
+	EndpointGuildRole                = func(gID, rID string) string { return EndpointGuilds + gID + "/roles/" + rID }
+	EndpointGuildInvites             = func(gID string) string { return EndpointGuilds + gID + "/invites" }
+	EndpointGuildWidget              = func(gID string) string { return EndpointGuilds + gID + "/widget" }
+	EndpointGuildEmbed               = EndpointGuildWidget
+	EndpointGuildPrune               = func(gID string) string { return EndpointGuilds + gID + "/prune" }
+	EndpointGuildIcon                = func(gID, hash string) string { return EndpointCDNIcons + gID + "/" + hash + ".png" }
+	EndpointGuildIconAnimated        = func(gID, hash string) string { return EndpointCDNIcons + gID + "/" + hash + ".gif" }
+	EndpointGuildSplash              = func(gID, hash string) string { return EndpointCDNSplashes + gID + "/" + hash + ".png" }
+	EndpointGuildWebhooks            = func(gID string) string { return EndpointGuilds + gID + "/webhooks" }
+	EndpointGuildAuditLogs           = func(gID string) string { return EndpointGuilds + gID + "/audit-logs" }
+	EndpointGuildEmojis              = func(gID string) string { return EndpointGuilds + gID + "/emojis" }
+	EndpointGuildEmoji               = func(gID, eID string) string { return EndpointGuilds + gID + "/emojis/" + eID }
+	EndpointGuildBanner              = func(gID, hash string) string { return EndpointCDNBanners + gID + "/" + hash + ".png" }
+	EndpointGuildStickers            = func(gID string) string { return EndpointGuilds + gID + "/stickers" }
+	EndpointGuildSticker             = func(gID, sID string) string { return EndpointGuilds + gID + "/stickers/" + sID }
+	EndpointStageInstance            = func(cID string) string { return EndpointStageInstances + "/" + cID }
+	EndpointGuildScheduledEvents     = func(gID string) string { return EndpointGuilds + gID + "/scheduled-events" }
+	EndpointGuildScheduledEvent      = func(gID, eID string) string { return EndpointGuilds + gID + "/scheduled-events/" + eID }
+	EndpointGuildScheduledEventUsers = func(gID, eID string) string { return EndpointGuildScheduledEvent(gID, eID) + "/users" }
+	EndpointGuildTemplate            = func(tID string) string { return EndpointGuilds + "/templates/" + tID }
+	EndpointGuildTemplates           = func(gID string) string { return EndpointGuilds + gID + "/templates" }
+	EndpointGuildTemplateSync        = func(gID, tID string) string { return EndpointGuilds + gID + "/templates/" + tID }
+	EndpointGuildMemberAvatar        = func(gId, uID, aID string) string {
+		return EndpointCDNGuilds + gId + "/users/" + uID + "/avatars/" + aID + ".png"
+	}
+	EndpointGuildMemberAvatarAnimated = func(gId, uID, aID string) string {
+		return EndpointCDNGuilds + gId + "/users/" + uID + "/avatars/" + aID + ".gif"
+	}
+
+	EndpointChannel                             = func(cID string) string { return EndpointChannels + cID }
+	EndpointChannelThreads                      = func(cID string) string { return EndpointChannel(cID) + "/threads" }
+	EndpointChannelActiveThreads                = func(cID string) string { return EndpointChannelThreads(cID) + "/active" }
+	EndpointChannelPublicArchivedThreads        = func(cID string) string { return EndpointChannelThreads(cID) + "/archived/public" }
+	EndpointChannelPrivateArchivedThreads       = func(cID string) string { return EndpointChannelThreads(cID) + "/archived/private" }
+	EndpointChannelJoinedPrivateArchivedThreads = func(cID string) string { return EndpointChannel(cID) + "/users/@me/threads/archived/private" }
+	EndpointChannelPermissions                  = func(cID string) string { return EndpointChannels + cID + "/permissions" }
+	EndpointChannelPermission                   = func(cID, tID string) string { return EndpointChannels + cID + "/permissions/" + tID }
+	EndpointChannelInvites                      = func(cID string) string { return EndpointChannels + cID + "/invites" }
+	EndpointChannelTyping                       = func(cID string) string { return EndpointChannels + cID + "/typing" }
+	EndpointChannelMessages                     = func(cID string) string { return EndpointChannels + cID + "/messages" }
+	EndpointChannelMessage                      = func(cID, mID string) string { return EndpointChannels + cID + "/messages/" + mID }
+	EndpointChannelMessageThread                = func(cID, mID string) string { return EndpointChannelMessage(cID, mID) + "/threads" }
+	EndpointChannelMessagesBulkDelete           = func(cID string) string { return EndpointChannel(cID) + "/messages/bulk-delete" }
+	EndpointChannelMessagesPins                 = func(cID string) string { return EndpointChannel(cID) + "/pins" }
+	EndpointChannelMessagePin                   = func(cID, mID string) string { return EndpointChannel(cID) + "/pins/" + mID }
+	EndpointChannelMessageCrosspost             = func(cID, mID string) string { return EndpointChannel(cID) + "/messages/" + mID + "/crosspost" }
+	EndpointChannelFollow                       = func(cID string) string { return EndpointChannel(cID) + "/followers" }
+	EndpointThreadMembers                       = func(tID string) string { return EndpointChannel(tID) + "/thread-members" }
+	EndpointThreadMember                        = func(tID, mID string) string { return EndpointThreadMembers(tID) + "/" + mID }
+
+	EndpointGroupIcon = func(cID, hash string) string { return EndpointCDNChannelIcons + cID + "/" + hash + ".png" }
+
+	EndpointSticker            = func(sID string) string { return EndpointStickers + sID }
+	EndpointNitroStickersPacks = EndpointAPI + "/sticker-packs"
+
+	EndpointChannelWebhooks = func(cID string) string { return EndpointChannel(cID) + "/webhooks" }
+	EndpointWebhook         = func(wID string) string { return EndpointWebhooks + wID }
+	EndpointWebhookToken    = func(wID, token string) string { return EndpointWebhooks + wID + "/" + token }
+	EndpointWebhookMessage  = func(wID, token, messageID string) string {
+		return EndpointWebhookToken(wID, token) + "/messages/" + messageID
+	}
+
+	EndpointMessageReactionsAll = func(cID, mID string) string {
+		return EndpointChannelMessage(cID, mID) + "/reactions"
+	}
+	EndpointMessageReactions = func(cID, mID, eID string) string {
+		return EndpointChannelMessage(cID, mID) + "/reactions/" + eID
+	}
+	EndpointMessageReaction = func(cID, mID, eID, uID string) string {
+		return EndpointMessageReactions(cID, mID, eID) + "/" + uID
+	}
+
+	EndpointApplicationGlobalCommands = func(aID string) string {
+		return EndpointApplication(aID) + "/commands"
+	}
+	EndpointApplicationGlobalCommand = func(aID, cID string) string {
+		return EndpointApplicationGlobalCommands(aID) + "/" + cID
+	}
+
+	EndpointApplicationGuildCommands = func(aID, gID string) string {
+		return EndpointApplication(aID) + "/guilds/" + gID + "/commands"
+	}
+	EndpointApplicationGuildCommand = func(aID, gID, cID string) string {
+		return EndpointApplicationGuildCommands(aID, gID) + "/" + cID
+	}
+	EndpointApplicationCommandPermissions = func(aID, gID, cID string) string {
+		return EndpointApplicationGuildCommand(aID, gID, cID) + "/permissions"
+	}
+	EndpointApplicationCommandsGuildPermissions = func(aID, gID string) string {
+		return EndpointApplicationGuildCommands(aID, gID) + "/permissions"
+	}
+	EndpointInteraction = func(aID, iToken string) string {
+		return EndpointAPI + "interactions/" + aID + "/" + iToken
+	}
+	EndpointInteractionResponse = func(iID, iToken string) string {
+		return EndpointInteraction(iID, iToken) + "/callback"
+	}
+	EndpointInteractionResponseActions = func(aID, iToken string) string {
+		return EndpointWebhookMessage(aID, iToken, "@original")
+	}
+	EndpointFollowupMessage = func(aID, iToken string) string {
+		return EndpointWebhookToken(aID, iToken)
+	}
+	EndpointFollowupMessageActions = func(aID, iToken, mID string) string {
+		return EndpointWebhookMessage(aID, iToken, mID)
+	}
+
+	EndpointGuildCreate = EndpointAPI + "guilds"
+
+	EndpointInvite = func(iID string) string { return EndpointAPI + "invites/" + iID }
+
+	EndpointEmoji         = func(eID string) string { return EndpointCDN + "emojis/" + eID + ".png" }
+	EndpointEmojiAnimated = func(eID string) string { return EndpointCDN + "emojis/" + eID + ".gif" }
+
+	EndpointApplications = EndpointAPI + "applications"
+	EndpointApplication  = func(aID string) string { return EndpointApplications + "/" + aID }
+
+	EndpointOAuth2                  = EndpointAPI + "oauth2/"
+	EndpointOAuth2Applications      = EndpointOAuth2 + "applications"
+	EndpointOAuth2Application       = func(aID string) string { return EndpointOAuth2Applications + "/" + aID }
+	EndpointOAuth2ApplicationsBot   = func(aID string) string { return EndpointOAuth2Applications + "/" + aID + "/bot" }
+	EndpointOAuth2ApplicationAssets = func(aID string) string { return EndpointOAuth2Applications + "/" + aID + "/assets" }
+
+	// TODO: Deprecated, remove in the next release
+	EndpointOauth2                  = EndpointOAuth2
+	EndpointOauth2Applications      = EndpointOAuth2Applications
+	EndpointOauth2Application       = EndpointOAuth2Application
+	EndpointOauth2ApplicationsBot   = EndpointOAuth2ApplicationsBot
+	EndpointOauth2ApplicationAssets = EndpointOAuth2ApplicationAssets
+)

vendor/github.com/bwmarrin/discordgo/event.go

@@ -157,7 +157,7 @@ func (s *Session) removeEventHandlerInstance(t string, ehi *eventHandlerInstance
 	onceHandlers := s.onceHandlers[t]
 	for i := range onceHandlers {
 		if onceHandlers[i] == ehi {
-			s.onceHandlers[t] = append(onceHandlers[:i], handlers[i+1:]...)
+			s.onceHandlers[t] = append(onceHandlers[:i], onceHandlers[i+1:]...)
 		}
 	}
 }

vendor/github.com/bwmarrin/discordgo/eventhandlers.go

@@ -7,50 +7,67 @@ package discordgo
 // Event type values are used to match the events returned by Discord.
 // EventTypes surrounded by __ are synthetic and are internal to DiscordGo.
 const (
-	channelCreateEventType            = "CHANNEL_CREATE"
-	channelDeleteEventType            = "CHANNEL_DELETE"
-	channelPinsUpdateEventType        = "CHANNEL_PINS_UPDATE"
-	channelUpdateEventType            = "CHANNEL_UPDATE"
-	connectEventType                  = "__CONNECT__"
-	disconnectEventType               = "__DISCONNECT__"
-	eventEventType                    = "__EVENT__"
-	guildBanAddEventType              = "GUILD_BAN_ADD"
-	guildBanRemoveEventType           = "GUILD_BAN_REMOVE"
-	guildCreateEventType              = "GUILD_CREATE"
-	guildDeleteEventType              = "GUILD_DELETE"
-	guildEmojisUpdateEventType        = "GUILD_EMOJIS_UPDATE"
-	guildIntegrationsUpdateEventType  = "GUILD_INTEGRATIONS_UPDATE"
-	guildMemberAddEventType           = "GUILD_MEMBER_ADD"
-	guildMemberRemoveEventType        = "GUILD_MEMBER_REMOVE"
-	guildMemberUpdateEventType        = "GUILD_MEMBER_UPDATE"
-	guildMembersChunkEventType        = "GUILD_MEMBERS_CHUNK"
-	guildRoleCreateEventType          = "GUILD_ROLE_CREATE"
-	guildRoleDeleteEventType          = "GUILD_ROLE_DELETE"
-	guildRoleUpdateEventType          = "GUILD_ROLE_UPDATE"
-	guildUpdateEventType              = "GUILD_UPDATE"
-	messageAckEventType               = "MESSAGE_ACK"
-	messageCreateEventType            = "MESSAGE_CREATE"
-	messageDeleteEventType            = "MESSAGE_DELETE"
-	messageDeleteBulkEventType        = "MESSAGE_DELETE_BULK"
-	messageReactionAddEventType       = "MESSAGE_REACTION_ADD"
-	messageReactionRemoveEventType    = "MESSAGE_REACTION_REMOVE"
-	messageReactionRemoveAllEventType = "MESSAGE_REACTION_REMOVE_ALL"
-	messageUpdateEventType            = "MESSAGE_UPDATE"
-	presenceUpdateEventType           = "PRESENCE_UPDATE"
-	presencesReplaceEventType         = "PRESENCES_REPLACE"
-	rateLimitEventType                = "__RATE_LIMIT__"
-	readyEventType                    = "READY"
-	relationshipAddEventType          = "RELATIONSHIP_ADD"
-	relationshipRemoveEventType       = "RELATIONSHIP_REMOVE"
-	resumedEventType                  = "RESUMED"
-	typingStartEventType              = "TYPING_START"
-	userGuildSettingsUpdateEventType  = "USER_GUILD_SETTINGS_UPDATE"
-	userNoteUpdateEventType           = "USER_NOTE_UPDATE"
-	userSettingsUpdateEventType       = "USER_SETTINGS_UPDATE"
-	userUpdateEventType               = "USER_UPDATE"
-	voiceServerUpdateEventType        = "VOICE_SERVER_UPDATE"
-	voiceStateUpdateEventType         = "VOICE_STATE_UPDATE"
-	webhooksUpdateEventType           = "WEBHOOKS_UPDATE"
+	channelCreateEventType                 = "CHANNEL_CREATE"
+	channelDeleteEventType                 = "CHANNEL_DELETE"
+	channelPinsUpdateEventType             = "CHANNEL_PINS_UPDATE"
+	channelUpdateEventType                 = "CHANNEL_UPDATE"
+	connectEventType                       = "__CONNECT__"
+	disconnectEventType                    = "__DISCONNECT__"
+	eventEventType                         = "__EVENT__"
+	guildBanAddEventType                   = "GUILD_BAN_ADD"
+	guildBanRemoveEventType                = "GUILD_BAN_REMOVE"
+	guildCreateEventType                   = "GUILD_CREATE"
+	guildDeleteEventType                   = "GUILD_DELETE"
+	guildEmojisUpdateEventType             = "GUILD_EMOJIS_UPDATE"
+	guildIntegrationsUpdateEventType       = "GUILD_INTEGRATIONS_UPDATE"
+	guildMemberAddEventType                = "GUILD_MEMBER_ADD"
+	guildMemberRemoveEventType             = "GUILD_MEMBER_REMOVE"
+	guildMemberUpdateEventType             = "GUILD_MEMBER_UPDATE"
+	guildMembersChunkEventType             = "GUILD_MEMBERS_CHUNK"
+	guildRoleCreateEventType               = "GUILD_ROLE_CREATE"
+	guildRoleDeleteEventType               = "GUILD_ROLE_DELETE"
+	guildRoleUpdateEventType               = "GUILD_ROLE_UPDATE"
+	guildStageInstanceCreateEventType      = "STAGE_INSTANCE_CREATE"
+	guildStageInstanceUpdateEventType      = "STAGE_INSTANCE_UPDATE"
+	guildStageInstanceDeleteEventType      = "STAGE_INSTANCE_DELETE"
+	guildScheduledEventCreateEventType     = "GUILD_SCHEDULED_EVENT_CREATE"
+	guildScheduledEventDeleteEventType     = "GUILD_SCHEDULED_EVENT_DELETE"
+	guildScheduledEventUpdateEventType     = "GUILD_SCHEDULED_EVENT_UPDATE"
+	guildScheduledEventUserAddEventType    = "GUILD_SCHEDULED_EVENT_USER_ADD"
+	guildScheduledEventUserRemoveEventType = "GUILD_SCHEDULED_EVENT_USER_REMOVE"
+	guildUpdateEventType                   = "GUILD_UPDATE"
+	interactionCreateEventType             = "INTERACTION_CREATE"
+	inviteCreateEventType                  = "INVITE_CREATE"
+	inviteDeleteEventType                  = "INVITE_DELETE"
+	messageAckEventType                    = "MESSAGE_ACK"
+	messageCreateEventType                 = "MESSAGE_CREATE"
+	messageDeleteEventType                 = "MESSAGE_DELETE"
+	messageDeleteBulkEventType             = "MESSAGE_DELETE_BULK"
+	messageReactionAddEventType            = "MESSAGE_REACTION_ADD"
+	messageReactionRemoveEventType         = "MESSAGE_REACTION_REMOVE"
+	messageReactionRemoveAllEventType      = "MESSAGE_REACTION_REMOVE_ALL"
+	messageUpdateEventType                 = "MESSAGE_UPDATE"
+	presenceUpdateEventType                = "PRESENCE_UPDATE"
+	presencesReplaceEventType              = "PRESENCES_REPLACE"
+	rateLimitEventType                     = "__RATE_LIMIT__"
+	readyEventType                         = "READY"
+	relationshipAddEventType               = "RELATIONSHIP_ADD"
+	relationshipRemoveEventType            = "RELATIONSHIP_REMOVE"
+	resumedEventType                       = "RESUMED"
+	threadCreateEventType                  = "THREAD_CREATE"
+	threadDeleteEventType                  = "THREAD_DELETE"
+	threadListSyncEventType                = "THREAD_LIST_SYNC"
+	threadMemberUpdateEventType            = "THREAD_MEMBER_UPDATE"
+	threadMembersUpdateEventType           = "THREAD_MEMBERS_UPDATE"
+	threadUpdateEventType                  = "THREAD_UPDATE"
+	typingStartEventType                   = "TYPING_START"
+	userGuildSettingsUpdateEventType       = "USER_GUILD_SETTINGS_UPDATE"
+	userNoteUpdateEventType                = "USER_NOTE_UPDATE"
+	userSettingsUpdateEventType            = "USER_SETTINGS_UPDATE"
+	userUpdateEventType                    = "USER_UPDATE"
+	voiceServerUpdateEventType             = "VOICE_SERVER_UPDATE"
+	voiceStateUpdateEventType              = "VOICE_STATE_UPDATE"
+	webhooksUpdateEventType                = "WEBHOOKS_UPDATE"
 )
 
 // channelCreateEventHandler is an event handler for ChannelCreate events.
@@ -438,6 +455,166 @@ func (eh guildRoleUpdateEventHandler) Handle(s *Session, i interface{}) {
 	}
 }
 
+// guildStageInstanceEventCreateHandler is an event handler for StageInstanceEventCreate events.
+type guildStageInstanceEventCreateHandler func(*Session, *StageInstanceEventCreate)
+
+// Type returns the event type for StageInstanceEventCreate events.
+func (eh guildStageInstanceEventCreateHandler) Type() string {
+	return guildStageInstanceCreateEventType
+}
+
+// New returns a new instance of StageInstanceEventCreate.
+func (eh guildStageInstanceEventCreateHandler) New() interface{} {
+	return &StageInstanceEventCreate{}
+}
+
+// Handle is the handler for StageInstanceEventCreate events.
+func (eh guildStageInstanceEventCreateHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*StageInstanceEventCreate); ok {
+		eh(s, t)
+	}
+}
+
+// guildStageInstanceEventUpdateHandler is an event handler for StageInstanceEventUpdate events.
+type guildStageInstanceEventUpdateHandler func(*Session, *StageInstanceEventUpdate)
+
+// Type returns the event type for StageInstanceEventUpdate events.
+func (eh guildStageInstanceEventUpdateHandler) Type() string {
+	return guildStageInstanceCreateEventType
+}
+
+// New returns a new instance of StageInstanceEventUpdate.
+func (eh guildStageInstanceEventUpdateHandler) New() interface{} {
+	return &StageInstanceEventUpdate{}
+}
+
+// Handle is the handler for StageInstanceEventUpdate events.
+func (eh guildStageInstanceEventUpdateHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*StageInstanceEventUpdate); ok {
+		eh(s, t)
+	}
+}
+
+// guildStageInstanceEventDeleteHandler is an event handler for StageInstanceEventDelete events.
+type guildStageInstanceEventDeleteHandler func(*Session, *StageInstanceEventDelete)
+
+// Type returns the event type for StageInstanceEventDelete events.
+func (eh guildStageInstanceEventDeleteHandler) Type() string {
+	return guildStageInstanceCreateEventType
+}
+
+// New returns a new instance of StageInstanceEventDelete.
+func (eh guildStageInstanceEventDeleteHandler) New() interface{} {
+	return &StageInstanceEventDelete{}
+}
+
+// Handle is the handler for StageInstanceEventDelete events.
+func (eh guildStageInstanceEventDeleteHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*StageInstanceEventDelete); ok {
+		eh(s, t)
+	}
+}
+
+// guildScheduledEventCreateEventHandler is an event handler for GuildScheduledEventCreate events.
+type guildScheduledEventCreateEventHandler func(*Session, *GuildScheduledEventCreate)
+
+// Type returns the event type for GuildScheduledEventCreate events.
+func (eh guildScheduledEventCreateEventHandler) Type() string {
+	return guildScheduledEventCreateEventType
+}
+
+// New returns a new instance of GuildScheduledEventCreate.
+func (eh guildScheduledEventCreateEventHandler) New() interface{} {
+	return &GuildScheduledEventCreate{}
+}
+
+// Handle is the handler for GuildScheduledEventCreate events.
+func (eh guildScheduledEventCreateEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*GuildScheduledEventCreate); ok {
+		eh(s, t)
+	}
+}
+
+// guildScheduledEventDeleteEventHandler is an event handler for GuildScheduledEventDelete events.
+type guildScheduledEventDeleteEventHandler func(*Session, *GuildScheduledEventDelete)
+
+// Type returns the event type for GuildScheduledEventDelete events.
+func (eh guildScheduledEventDeleteEventHandler) Type() string {
+	return guildScheduledEventDeleteEventType
+}
+
+// New returns a new instance of GuildScheduledEventDelete.
+func (eh guildScheduledEventDeleteEventHandler) New() interface{} {
+	return &GuildScheduledEventDelete{}
+}
+
+// Handle is the handler for GuildScheduledEventDelete events.
+func (eh guildScheduledEventDeleteEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*GuildScheduledEventDelete); ok {
+		eh(s, t)
+	}
+}
+
+// guildScheduledEventUpdateEventHandler is an event handler for GuildScheduledEventUpdate events.
+type guildScheduledEventUpdateEventHandler func(*Session, *GuildScheduledEventUpdate)
+
+// Type returns the event type for GuildScheduledEventUpdate events.
+func (eh guildScheduledEventUpdateEventHandler) Type() string {
+	return guildScheduledEventUpdateEventType
+}
+
+// New returns a new instance of GuildScheduledEventUpdate.
+func (eh guildScheduledEventUpdateEventHandler) New() interface{} {
+	return &GuildScheduledEventUpdate{}
+}
+
+// Handle is the handler for GuildScheduledEventUpdate events.
+func (eh guildScheduledEventUpdateEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*GuildScheduledEventUpdate); ok {
+		eh(s, t)
+	}
+}
+
+// guildScheduledEventUserAddEventHandler is an event handler for GuildScheduledEventUserAdd events.
+type guildScheduledEventUserAddEventHandler func(*Session, *GuildScheduledEventUserAdd)
+
+// Type returns the event type for GuildScheduledEventUserAdd events.
+func (eh guildScheduledEventUserAddEventHandler) Type() string {
+	return guildScheduledEventUserAddEventType
+}
+
+// New returns a new instance of GuildScheduledEventUserAdd.
+func (eh guildScheduledEventUserAddEventHandler) New() interface{} {
+	return &GuildScheduledEventUserAdd{}
+}
+
+// Handle is the handler for GuildScheduledEventUserAdd events.
+func (eh guildScheduledEventUserAddEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*GuildScheduledEventUserAdd); ok {
+		eh(s, t)
+	}
+}
+
+// guildScheduledEventUserRemoveEventHandler is an event handler for GuildScheduledEventUserRemove events.
+type guildScheduledEventUserRemoveEventHandler func(*Session, *GuildScheduledEventUserRemove)
+
+// Type returns the event type for GuildScheduledEventUserRemove events.
+func (eh guildScheduledEventUserRemoveEventHandler) Type() string {
+	return guildScheduledEventUserRemoveEventType
+}
+
+// New returns a new instance of GuildScheduledEventUserRemove.
+func (eh guildScheduledEventUserRemoveEventHandler) New() interface{} {
+	return &GuildScheduledEventUserRemove{}
+}
+
+// Handle is the handler for GuildScheduledEventUserRemove events.
+func (eh guildScheduledEventUserRemoveEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*GuildScheduledEventUserRemove); ok {
+		eh(s, t)
+	}
+}
+
 // guildUpdateEventHandler is an event handler for GuildUpdate events.
 type guildUpdateEventHandler func(*Session, *GuildUpdate)
 
@@ -458,6 +635,66 @@ func (eh guildUpdateEventHandler) Handle(s *Session, i interface{}) {
 	}
 }
 
+// interactionCreateEventHandler is an event handler for InteractionCreate events.
+type interactionCreateEventHandler func(*Session, *InteractionCreate)
+
+// Type returns the event type for InteractionCreate events.
+func (eh interactionCreateEventHandler) Type() string {
+	return interactionCreateEventType
+}
+
+// New returns a new instance of InteractionCreate.
+func (eh interactionCreateEventHandler) New() interface{} {
+	return &InteractionCreate{}
+}
+
+// Handle is the handler for InteractionCreate events.
+func (eh interactionCreateEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*InteractionCreate); ok {
+		eh(s, t)
+	}
+}
+
+// inviteCreateEventHandler is an event handler for InviteCreate events.
+type inviteCreateEventHandler func(*Session, *InviteCreate)
+
+// Type returns the event type for InviteCreate events.
+func (eh inviteCreateEventHandler) Type() string {
+	return inviteCreateEventType
+}
+
+// New returns a new instance of InviteCreate.
+func (eh inviteCreateEventHandler) New() interface{} {
+	return &InviteCreate{}
+}
+
+// Handle is the handler for InviteCreate events.
+func (eh inviteCreateEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*InviteCreate); ok {
+		eh(s, t)
+	}
+}
+
+// inviteDeleteEventHandler is an event handler for InviteDelete events.
+type inviteDeleteEventHandler func(*Session, *InviteDelete)
+
+// Type returns the event type for InviteDelete events.
+func (eh inviteDeleteEventHandler) Type() string {
+	return inviteDeleteEventType
+}
+
+// New returns a new instance of InviteDelete.
+func (eh inviteDeleteEventHandler) New() interface{} {
+	return &InviteDelete{}
+}
+
+// Handle is the handler for InviteDelete events.
+func (eh inviteDeleteEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*InviteDelete); ok {
+		eh(s, t)
+	}
+}
+
 // messageAckEventHandler is an event handler for MessageAck events.
 type messageAckEventHandler func(*Session, *MessageAck)
 
@@ -753,6 +990,126 @@ func (eh resumedEventHandler) Handle(s *Session, i interface{}) {
 	}
 }
 
+// threadCreateEventHandler is an event handler for ThreadCreate events.
+type threadCreateEventHandler func(*Session, *ThreadCreate)
+
+// Type returns the event type for ThreadCreate events.
+func (eh threadCreateEventHandler) Type() string {
+	return threadCreateEventType
+}
+
+// New returns a new instance of ThreadCreate.
+func (eh threadCreateEventHandler) New() interface{} {
+	return &ThreadCreate{}
+}
+
+// Handle is the handler for ThreadCreate events.
+func (eh threadCreateEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*ThreadCreate); ok {
+		eh(s, t)
+	}
+}
+
+// threadDeleteEventHandler is an event handler for ThreadDelete events.
+type threadDeleteEventHandler func(*Session, *ThreadDelete)
+
+// Type returns the event type for ThreadDelete events.
+func (eh threadDeleteEventHandler) Type() string {
+	return threadDeleteEventType
+}
+
+// New returns a new instance of ThreadDelete.
+func (eh threadDeleteEventHandler) New() interface{} {
+	return &ThreadDelete{}
+}
+
+// Handle is the handler for ThreadDelete events.
+func (eh threadDeleteEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*ThreadDelete); ok {
+		eh(s, t)
+	}
+}
+
+// threadListSyncEventHandler is an event handler for ThreadListSync events.
+type threadListSyncEventHandler func(*Session, *ThreadListSync)
+
+// Type returns the event type for ThreadListSync events.
+func (eh threadListSyncEventHandler) Type() string {
+	return threadListSyncEventType
+}
+
+// New returns a new instance of ThreadListSync.
+func (eh threadListSyncEventHandler) New() interface{} {
+	return &ThreadListSync{}
+}
+
+// Handle is the handler for ThreadListSync events.
+func (eh threadListSyncEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*ThreadListSync); ok {
+		eh(s, t)
+	}
+}
+
+// threadMemberUpdateEventHandler is an event handler for ThreadMemberUpdate events.
+type threadMemberUpdateEventHandler func(*Session, *ThreadMemberUpdate)
+
+// Type returns the event type for ThreadMemberUpdate events.
+func (eh threadMemberUpdateEventHandler) Type() string {
+	return threadMemberUpdateEventType
+}
+
+// New returns a new instance of ThreadMemberUpdate.
+func (eh threadMemberUpdateEventHandler) New() interface{} {
+	return &ThreadMemberUpdate{}
+}
+
+// Handle is the handler for ThreadMemberUpdate events.
+func (eh threadMemberUpdateEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*ThreadMemberUpdate); ok {
+		eh(s, t)
+	}
+}
+
+// threadMembersUpdateEventHandler is an event handler for ThreadMembersUpdate events.
+type threadMembersUpdateEventHandler func(*Session, *ThreadMembersUpdate)
+
+// Type returns the event type for ThreadMembersUpdate events.
+func (eh threadMembersUpdateEventHandler) Type() string {
+	return threadMembersUpdateEventType
+}
+
+// New returns a new instance of ThreadMembersUpdate.
+func (eh threadMembersUpdateEventHandler) New() interface{} {
+	return &ThreadMembersUpdate{}
+}
+
+// Handle is the handler for ThreadMembersUpdate events.
+func (eh threadMembersUpdateEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*ThreadMembersUpdate); ok {
+		eh(s, t)
+	}
+}
+
+// threadUpdateEventHandler is an event handler for ThreadUpdate events.
+type threadUpdateEventHandler func(*Session, *ThreadUpdate)
+
+// Type returns the event type for ThreadUpdate events.
+func (eh threadUpdateEventHandler) Type() string {
+	return threadUpdateEventType
+}
+
+// New returns a new instance of ThreadUpdate.
+func (eh threadUpdateEventHandler) New() interface{} {
+	return &ThreadUpdate{}
+}
+
+// Handle is the handler for ThreadUpdate events.
+func (eh threadUpdateEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*ThreadUpdate); ok {
+		eh(s, t)
+	}
+}
+
 // typingStartEventHandler is an event handler for TypingStart events.
 type typingStartEventHandler func(*Session, *TypingStart)
 
@@ -957,8 +1314,24 @@ func handlerForInterface(handler interface{}) EventHandler {
 		return guildRoleDeleteEventHandler(v)
 	case func(*Session, *GuildRoleUpdate):
 		return guildRoleUpdateEventHandler(v)
+	case func(*Session, *GuildScheduledEventCreate):
+		return guildScheduledEventCreateEventHandler(v)
+	case func(*Session, *GuildScheduledEventDelete):
+		return guildScheduledEventDeleteEventHandler(v)
+	case func(*Session, *GuildScheduledEventUpdate):
+		return guildScheduledEventUpdateEventHandler(v)
+	case func(*Session, *GuildScheduledEventUserAdd):
+		return guildScheduledEventUserAddEventHandler(v)
+	case func(*Session, *GuildScheduledEventUserRemove):
+		return guildScheduledEventUserRemoveEventHandler(v)
 	case func(*Session, *GuildUpdate):
 		return guildUpdateEventHandler(v)
+	case func(*Session, *InteractionCreate):
+		return interactionCreateEventHandler(v)
+	case func(*Session, *InviteCreate):
+		return inviteCreateEventHandler(v)
+	case func(*Session, *InviteDelete):
+		return inviteDeleteEventHandler(v)
 	case func(*Session, *MessageAck):
 		return messageAckEventHandler(v)
 	case func(*Session, *MessageCreate):
@@ -989,6 +1362,18 @@ func handlerForInterface(handler interface{}) EventHandler {
 		return relationshipRemoveEventHandler(v)
 	case func(*Session, *Resumed):
 		return resumedEventHandler(v)
+	case func(*Session, *ThreadCreate):
+		return threadCreateEventHandler(v)
+	case func(*Session, *ThreadDelete):
+		return threadDeleteEventHandler(v)
+	case func(*Session, *ThreadListSync):
+		return threadListSyncEventHandler(v)
+	case func(*Session, *ThreadMemberUpdate):
+		return threadMemberUpdateEventHandler(v)
+	case func(*Session, *ThreadMembersUpdate):
+		return threadMembersUpdateEventHandler(v)
+	case func(*Session, *ThreadUpdate):
+		return threadUpdateEventHandler(v)
 	case func(*Session, *TypingStart):
 		return typingStartEventHandler(v)
 	case func(*Session, *UserGuildSettingsUpdate):
@@ -1028,7 +1413,15 @@ func init() {
 	registerInterfaceProvider(guildRoleCreateEventHandler(nil))
 	registerInterfaceProvider(guildRoleDeleteEventHandler(nil))
 	registerInterfaceProvider(guildRoleUpdateEventHandler(nil))
+	registerInterfaceProvider(guildScheduledEventCreateEventHandler(nil))
+	registerInterfaceProvider(guildScheduledEventDeleteEventHandler(nil))
+	registerInterfaceProvider(guildScheduledEventUpdateEventHandler(nil))
+	registerInterfaceProvider(guildScheduledEventUserAddEventHandler(nil))
+	registerInterfaceProvider(guildScheduledEventUserRemoveEventHandler(nil))
 	registerInterfaceProvider(guildUpdateEventHandler(nil))
+	registerInterfaceProvider(interactionCreateEventHandler(nil))
+	registerInterfaceProvider(inviteCreateEventHandler(nil))
+	registerInterfaceProvider(inviteDeleteEventHandler(nil))
 	registerInterfaceProvider(messageAckEventHandler(nil))
 	registerInterfaceProvider(messageCreateEventHandler(nil))
 	registerInterfaceProvider(messageDeleteEventHandler(nil))
@@ -1043,6 +1436,12 @@ func init() {
 	registerInterfaceProvider(relationshipAddEventHandler(nil))
 	registerInterfaceProvider(relationshipRemoveEventHandler(nil))
 	registerInterfaceProvider(resumedEventHandler(nil))
+	registerInterfaceProvider(threadCreateEventHandler(nil))
+	registerInterfaceProvider(threadDeleteEventHandler(nil))
+	registerInterfaceProvider(threadListSyncEventHandler(nil))
+	registerInterfaceProvider(threadMemberUpdateEventHandler(nil))
+	registerInterfaceProvider(threadMembersUpdateEventHandler(nil))
+	registerInterfaceProvider(threadUpdateEventHandler(nil))
 	registerInterfaceProvider(typingStartEventHandler(nil))
 	registerInterfaceProvider(userGuildSettingsUpdateEventHandler(nil))
 	registerInterfaceProvider(userNoteUpdateEventHandler(nil))

vendor/github.com/bwmarrin/discordgo/events.go

@@ -73,6 +73,53 @@ type ChannelPinsUpdate struct {
 	GuildID          string `json:"guild_id,omitempty"`
 }
 
+// ThreadCreate is the data for a ThreadCreate event.
+type ThreadCreate struct {
+	*Channel
+	NewlyCreated bool `json:"newly_created"`
+}
+
+// ThreadUpdate is the data for a ThreadUpdate event.
+type ThreadUpdate struct {
+	*Channel
+	BeforeUpdate *Channel `json:"-"`
+}
+
+// ThreadDelete is the data for a ThreadDelete event.
+type ThreadDelete struct {
+	*Channel
+}
+
+// ThreadListSync is the data for a ThreadListSync event.
+type ThreadListSync struct {
+	// The id of the guild
+	GuildID string `json:"guild_id"`
+	// The parent channel ids whose threads are being synced.
+	// If omitted, then threads were synced for the entire guild.
+	// This array may contain channel_ids that have no active threads as well, so you know to clear that data.
+	ChannelIDs []string `json:"channel_ids"`
+	// All active threads in the given channels that the current user can access
+	Threads []*Channel `json:"threads"`
+	// All thread member objects from the synced threads for the current user,
+	// indicating which threads the current user has been added to
+	Members []*ThreadMember `json:"members"`
+}
+
+// ThreadMemberUpdate is the data for a ThreadMemberUpdate event.
+type ThreadMemberUpdate struct {
+	*ThreadMember
+	GuildID string `json:"guild_id"`
+}
+
+// ThreadMembersUpdate is the data for a ThreadMembersUpdate event.
+type ThreadMembersUpdate struct {
+	ID             string              `json:"id"`
+	GuildID        string              `json:"guild_id"`
+	MemberCount    int                 `json:"member_count"`
+	AddedMembers   []AddedThreadMember `json:"added_members"`
+	RemovedMembers []string            `json:"removed_member_ids"`
+}
+
 // GuildCreate is the data for a GuildCreate event.
 type GuildCreate struct {
 	*Guild
@@ -86,6 +133,7 @@ type GuildUpdate struct {
 // GuildDelete is the data for a GuildDelete event.
 type GuildDelete struct {
 	*Guild
+	BeforeDelete *Guild `json:"-"`
 }
 
 // GuildBanAdd is the data for a GuildBanAdd event.
@@ -143,7 +191,9 @@ type GuildMembersChunk struct {
 	Members    []*Member   `json:"members"`
 	ChunkIndex int         `json:"chunk_index"`
 	ChunkCount int         `json:"chunk_count"`
+	NotFound   []string    `json:"not_found,omitempty"`
 	Presences  []*Presence `json:"presences,omitempty"`
+	Nonce      string      `json:"nonce,omitempty"`
 }
 
 // GuildIntegrationsUpdate is the data for a GuildIntegrationsUpdate event.
@@ -151,6 +201,50 @@ type GuildIntegrationsUpdate struct {
 	GuildID string `json:"guild_id"`
 }
 
+// StageInstanceEventCreate is the data for a StageInstanceEventCreate event.
+type StageInstanceEventCreate struct {
+	*StageInstance
+}
+
+// StageInstanceEventUpdate is the data for a StageInstanceEventUpdate event.
+type StageInstanceEventUpdate struct {
+	*StageInstance
+}
+
+// StageInstanceEventDelete is the data for a StageInstanceEventDelete event.
+type StageInstanceEventDelete struct {
+	*StageInstance
+}
+
+// GuildScheduledEventCreate is the data for a GuildScheduledEventCreate event.
+type GuildScheduledEventCreate struct {
+	*GuildScheduledEvent
+}
+
+// GuildScheduledEventUpdate is the data for a GuildScheduledEventUpdate event.
+type GuildScheduledEventUpdate struct {
+	*GuildScheduledEvent
+}
+
+// GuildScheduledEventDelete is the data for a GuildScheduledEventDelete event.
+type GuildScheduledEventDelete struct {
+	*GuildScheduledEvent
+}
+
+// GuildScheduledEventUserAdd is the data for a GuildScheduledEventUserAdd event.
+type GuildScheduledEventUserAdd struct {
+	GuildScheduledEventID string `json:"guild_scheduled_event_id"`
+	UserID                string `json:"user_id"`
+	GuildID               string `json:"guild_id"`
+}
+
+// GuildScheduledEventUserRemove is the data for a GuildScheduledEventUserRemove event.
+type GuildScheduledEventUserRemove struct {
+	GuildScheduledEventID string `json:"guild_scheduled_event_id"`
+	UserID                string `json:"user_id"`
+	GuildID               string `json:"guild_id"`
+}
+
 // MessageAck is the data for a MessageAck event.
 type MessageAck struct {
 	MessageID string `json:"message_id"`
@@ -162,6 +256,11 @@ type MessageCreate struct {
 	*Message
 }
 
+// UnmarshalJSON is a helper function to unmarshal MessageCreate object.
+func (m *MessageCreate) UnmarshalJSON(b []byte) error {
+	return json.Unmarshal(b, &m.Message)
+}
+
 // MessageUpdate is the data for a MessageUpdate event.
 type MessageUpdate struct {
 	*Message
@@ -169,15 +268,26 @@ type MessageUpdate struct {
 	BeforeUpdate *Message `json:"-"`
 }
 
+// UnmarshalJSON is a helper function to unmarshal MessageUpdate object.
+func (m *MessageUpdate) UnmarshalJSON(b []byte) error {
+	return json.Unmarshal(b, &m.Message)
+}
+
 // MessageDelete is the data for a MessageDelete event.
 type MessageDelete struct {
 	*Message
 	BeforeDelete *Message `json:"-"`
 }
 
+// UnmarshalJSON is a helper function to unmarshal MessageDelete object.
+func (m *MessageDelete) UnmarshalJSON(b []byte) error {
+	return json.Unmarshal(b, &m.Message)
+}
+
 // MessageReactionAdd is the data for a MessageReactionAdd event.
 type MessageReactionAdd struct {
 	*MessageReaction
+	Member *Member `json:"member,omitempty"`
 }
 
 // MessageReactionRemove is the data for a MessageReactionRemove event.
@@ -267,3 +377,27 @@ type WebhooksUpdate struct {
 	GuildID   string `json:"guild_id"`
 	ChannelID string `json:"channel_id"`
 }
+
+// InteractionCreate is the data for a InteractionCreate event
+type InteractionCreate struct {
+	*Interaction
+}
+
+// UnmarshalJSON is a helper function to unmarshal Interaction object.
+func (i *InteractionCreate) UnmarshalJSON(b []byte) error {
+	return json.Unmarshal(b, &i.Interaction)
+}
+
+// InviteCreate is the data for a InviteCreate event
+type InviteCreate struct {
+	*Invite
+	ChannelID string `json:"channel_id"`
+	GuildID   string `json:"guild_id"`
+}
+
+// InviteDelete is the data for a InviteDelete event
+type InviteDelete struct {
+	ChannelID string `json:"channel_id"`
+	GuildID   string `json:"guild_id"`
+	Code      string `json:"code"`
+}

vendor/github.com/bwmarrin/discordgo/interactions.go

@@ -0,0 +1,574 @@
+package discordgo
+
+import (
+	"bytes"
+	"crypto/ed25519"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"time"
+)
+
+// InteractionDeadline is the time allowed to respond to an interaction.
+const InteractionDeadline = time.Second * 3
+
+// ApplicationCommandType represents the type of application command.
+type ApplicationCommandType uint8
+
+// Application command types
+const (
+	// ChatApplicationCommand is default command type. They are slash commands (i.e. called directly from the chat).
+	ChatApplicationCommand ApplicationCommandType = 1
+	// UserApplicationCommand adds command to user context menu.
+	UserApplicationCommand ApplicationCommandType = 2
+	// MessageApplicationCommand adds command to message context menu.
+	MessageApplicationCommand ApplicationCommandType = 3
+)
+
+// ApplicationCommand represents an application's slash command.
+type ApplicationCommand struct {
+	ID                string                 `json:"id,omitempty"`
+	ApplicationID     string                 `json:"application_id,omitempty"`
+	Version           string                 `json:"version,omitempty"`
+	Type              ApplicationCommandType `json:"type,omitempty"`
+	Name              string                 `json:"name"`
+	NameLocalizations *map[Locale]string     `json:"name_localizations,omitempty"`
+	DefaultPermission *bool                  `json:"default_permission,omitempty"`
+
+	// NOTE: Chat commands only. Otherwise it mustn't be set.
+
+	Description              string                      `json:"description,omitempty"`
+	DescriptionLocalizations *map[Locale]string          `json:"description_localizations,omitempty"`
+	Options                  []*ApplicationCommandOption `json:"options"`
+}
+
+// ApplicationCommandOptionType indicates the type of a slash command's option.
+type ApplicationCommandOptionType uint8
+
+// Application command option types.
+const (
+	ApplicationCommandOptionSubCommand      ApplicationCommandOptionType = 1
+	ApplicationCommandOptionSubCommandGroup ApplicationCommandOptionType = 2
+	ApplicationCommandOptionString          ApplicationCommandOptionType = 3
+	ApplicationCommandOptionInteger         ApplicationCommandOptionType = 4
+	ApplicationCommandOptionBoolean         ApplicationCommandOptionType = 5
+	ApplicationCommandOptionUser            ApplicationCommandOptionType = 6
+	ApplicationCommandOptionChannel         ApplicationCommandOptionType = 7
+	ApplicationCommandOptionRole            ApplicationCommandOptionType = 8
+	ApplicationCommandOptionMentionable     ApplicationCommandOptionType = 9
+	ApplicationCommandOptionNumber          ApplicationCommandOptionType = 10
+	ApplicationCommandOptionAttachment      ApplicationCommandOptionType = 11
+)
+
+func (t ApplicationCommandOptionType) String() string {
+	switch t {
+	case ApplicationCommandOptionSubCommand:
+		return "SubCommand"
+	case ApplicationCommandOptionSubCommandGroup:
+		return "SubCommandGroup"
+	case ApplicationCommandOptionString:
+		return "String"
+	case ApplicationCommandOptionInteger:
+		return "Integer"
+	case ApplicationCommandOptionBoolean:
+		return "Boolean"
+	case ApplicationCommandOptionUser:
+		return "User"
+	case ApplicationCommandOptionChannel:
+		return "Channel"
+	case ApplicationCommandOptionRole:
+		return "Role"
+	case ApplicationCommandOptionMentionable:
+		return "Mentionable"
+	case ApplicationCommandOptionNumber:
+		return "Number"
+	case ApplicationCommandOptionAttachment:
+		return "Attachment"
+	}
+	return fmt.Sprintf("ApplicationCommandOptionType(%d)", t)
+}
+
+// ApplicationCommandOption represents an option/subcommand/subcommands group.
+type ApplicationCommandOption struct {
+	Type                     ApplicationCommandOptionType `json:"type"`
+	Name                     string                       `json:"name"`
+	NameLocalizations        map[Locale]string            `json:"name_localizations,omitempty"`
+	Description              string                       `json:"description,omitempty"`
+	DescriptionLocalizations map[Locale]string            `json:"description_localizations,omitempty"`
+	// NOTE: This feature was on the API, but at some point developers decided to remove it.
+	// So I commented it, until it will be officially on the docs.
+	// Default     bool                              `json:"default"`
+
+	ChannelTypes []ChannelType               `json:"channel_types"`
+	Required     bool                        `json:"required"`
+	Options      []*ApplicationCommandOption `json:"options"`
+
+	// NOTE: mutually exclusive with Choices.
+	Autocomplete bool                              `json:"autocomplete"`
+	Choices      []*ApplicationCommandOptionChoice `json:"choices"`
+	// Minimal value of number/integer option.
+	MinValue *float64 `json:"min_value,omitempty"`
+	// Maximum value of number/integer option.
+	MaxValue float64 `json:"max_value,omitempty"`
+}
+
+// ApplicationCommandOptionChoice represents a slash command option choice.
+type ApplicationCommandOptionChoice struct {
+	Name              string            `json:"name"`
+	NameLocalizations map[Locale]string `json:"name_localizations,omitempty"`
+	Value             interface{}       `json:"value"`
+}
+
+// ApplicationCommandPermissions represents a single user or role permission for a command.
+type ApplicationCommandPermissions struct {
+	ID         string                           `json:"id"`
+	Type       ApplicationCommandPermissionType `json:"type"`
+	Permission bool                             `json:"permission"`
+}
+
+// ApplicationCommandPermissionsList represents a list of ApplicationCommandPermissions, needed for serializing to JSON.
+type ApplicationCommandPermissionsList struct {
+	Permissions []*ApplicationCommandPermissions `json:"permissions"`
+}
+
+// GuildApplicationCommandPermissions represents all permissions for a single guild command.
+type GuildApplicationCommandPermissions struct {
+	ID            string                           `json:"id"`
+	ApplicationID string                           `json:"application_id"`
+	GuildID       string                           `json:"guild_id"`
+	Permissions   []*ApplicationCommandPermissions `json:"permissions"`
+}
+
+// ApplicationCommandPermissionType indicates whether a permission is user or role based.
+type ApplicationCommandPermissionType uint8
+
+// Application command permission types.
+const (
+	ApplicationCommandPermissionTypeRole ApplicationCommandPermissionType = 1
+	ApplicationCommandPermissionTypeUser ApplicationCommandPermissionType = 2
+)
+
+// InteractionType indicates the type of an interaction event.
+type InteractionType uint8
+
+// Interaction types
+const (
+	InteractionPing                           InteractionType = 1
+	InteractionApplicationCommand             InteractionType = 2
+	InteractionMessageComponent               InteractionType = 3
+	InteractionApplicationCommandAutocomplete InteractionType = 4
+	InteractionModalSubmit                    InteractionType = 5
+)
+
+func (t InteractionType) String() string {
+	switch t {
+	case InteractionPing:
+		return "Ping"
+	case InteractionApplicationCommand:
+		return "ApplicationCommand"
+	case InteractionMessageComponent:
+		return "MessageComponent"
+	case InteractionModalSubmit:
+		return "ModalSubmit"
+	}
+	return fmt.Sprintf("InteractionType(%d)", t)
+}
+
+// Interaction represents data of an interaction.
+type Interaction struct {
+	ID        string          `json:"id"`
+	AppID     string          `json:"application_id"`
+	Type      InteractionType `json:"type"`
+	Data      InteractionData `json:"data"`
+	GuildID   string          `json:"guild_id"`
+	ChannelID string          `json:"channel_id"`
+
+	// The message on which interaction was used.
+	// NOTE: this field is only filled when a button click triggered the interaction. Otherwise it will be nil.
+	Message *Message `json:"message"`
+
+	// The member who invoked this interaction.
+	// NOTE: this field is only filled when the slash command was invoked in a guild;
+	// if it was invoked in a DM, the `User` field will be filled instead.
+	// Make sure to check for `nil` before using this field.
+	Member *Member `json:"member"`
+	// The user who invoked this interaction.
+	// NOTE: this field is only filled when the slash command was invoked in a DM;
+	// if it was invoked in a guild, the `Member` field will be filled instead.
+	// Make sure to check for `nil` before using this field.
+	User *User `json:"user"`
+
+	// The user's discord client locale.
+	Locale Locale `json:"locale"`
+	// The guild's locale. This defaults to EnglishUS
+	// NOTE: this field is only filled when the interaction was invoked in a guild.
+	GuildLocale *Locale `json:"guild_locale"`
+
+	Token   string `json:"token"`
+	Version int    `json:"version"`
+}
+
+type interaction Interaction
+
+type rawInteraction struct {
+	interaction
+	Data json.RawMessage `json:"data"`
+}
+
+// UnmarshalJSON is a method for unmarshalling JSON object to Interaction.
+func (i *Interaction) UnmarshalJSON(raw []byte) error {
+	var tmp rawInteraction
+	err := json.Unmarshal(raw, &tmp)
+	if err != nil {
+		return err
+	}
+
+	*i = Interaction(tmp.interaction)
+
+	switch tmp.Type {
+	case InteractionApplicationCommand, InteractionApplicationCommandAutocomplete:
+		v := ApplicationCommandInteractionData{}
+		err = json.Unmarshal(tmp.Data, &v)
+		if err != nil {
+			return err
+		}
+		i.Data = v
+	case InteractionMessageComponent:
+		v := MessageComponentInteractionData{}
+		err = json.Unmarshal(tmp.Data, &v)
+		if err != nil {
+			return err
+		}
+		i.Data = v
+	case InteractionModalSubmit:
+		v := ModalSubmitInteractionData{}
+		err = json.Unmarshal(tmp.Data, &v)
+		if err != nil {
+			return err
+		}
+		i.Data = v
+	}
+	return nil
+}
+
+// MessageComponentData is helper function to assert the inner InteractionData to MessageComponentInteractionData.
+// Make sure to check that the Type of the interaction is InteractionMessageComponent before calling.
+func (i Interaction) MessageComponentData() (data MessageComponentInteractionData) {
+	if i.Type != InteractionMessageComponent {
+		panic("MessageComponentData called on interaction of type " + i.Type.String())
+	}
+	return i.Data.(MessageComponentInteractionData)
+}
+
+// ApplicationCommandData is helper function to assert the inner InteractionData to ApplicationCommandInteractionData.
+// Make sure to check that the Type of the interaction is InteractionApplicationCommand before calling.
+func (i Interaction) ApplicationCommandData() (data ApplicationCommandInteractionData) {
+	if i.Type != InteractionApplicationCommand && i.Type != InteractionApplicationCommandAutocomplete {
+		panic("ApplicationCommandData called on interaction of type " + i.Type.String())
+	}
+	return i.Data.(ApplicationCommandInteractionData)
+}
+
+// ModalSubmitData is helper function to assert the inner InteractionData to ModalSubmitInteractionData.
+// Make sure to check that the Type of the interaction is InteractionModalSubmit before calling.
+func (i Interaction) ModalSubmitData() (data ModalSubmitInteractionData) {
+	if i.Type != InteractionModalSubmit {
+		panic("ModalSubmitData called on interaction of type " + i.Type.String())
+	}
+	return i.Data.(ModalSubmitInteractionData)
+}
+
+// InteractionData is a common interface for all types of interaction data.
+type InteractionData interface {
+	Type() InteractionType
+}
+
+// ApplicationCommandInteractionData contains the data of application command interaction.
+type ApplicationCommandInteractionData struct {
+	ID       string                                     `json:"id"`
+	Name     string                                     `json:"name"`
+	Resolved *ApplicationCommandInteractionDataResolved `json:"resolved"`
+
+	// Slash command options
+	Options []*ApplicationCommandInteractionDataOption `json:"options"`
+	// Target (user/message) id on which context menu command was called.
+	// The details are stored in Resolved according to command type.
+	TargetID string `json:"target_id"`
+}
+
+// ApplicationCommandInteractionDataResolved contains resolved data of command execution.
+// Partial Member objects are missing user, deaf and mute fields.
+// Partial Channel objects only have id, name, type and permissions fields.
+type ApplicationCommandInteractionDataResolved struct {
+	Users       map[string]*User              `json:"users"`
+	Members     map[string]*Member            `json:"members"`
+	Roles       map[string]*Role              `json:"roles"`
+	Channels    map[string]*Channel           `json:"channels"`
+	Messages    map[string]*Message           `json:"messages"`
+	Attachments map[string]*MessageAttachment `json:"attachments"`
+}
+
+// Type returns the type of interaction data.
+func (ApplicationCommandInteractionData) Type() InteractionType {
+	return InteractionApplicationCommand
+}
+
+// MessageComponentInteractionData contains the data of message component interaction.
+type MessageComponentInteractionData struct {
+	CustomID      string        `json:"custom_id"`
+	ComponentType ComponentType `json:"component_type"`
+
+	// NOTE: Only filled when ComponentType is SelectMenuComponent (3). Otherwise is nil.
+	Values []string `json:"values"`
+}
+
+// Type returns the type of interaction data.
+func (MessageComponentInteractionData) Type() InteractionType {
+	return InteractionMessageComponent
+}
+
+// ModalSubmitInteractionData contains the data of modal submit interaction.
+type ModalSubmitInteractionData struct {
+	CustomID   string             `json:"custom_id"`
+	Components []MessageComponent `json:"-"`
+}
+
+// Type returns the type of interaction data.
+func (ModalSubmitInteractionData) Type() InteractionType {
+	return InteractionModalSubmit
+}
+
+// UnmarshalJSON is a helper function to correctly unmarshal Components.
+func (d *ModalSubmitInteractionData) UnmarshalJSON(data []byte) error {
+	type modalSubmitInteractionData ModalSubmitInteractionData
+	var v struct {
+		modalSubmitInteractionData
+		RawComponents []unmarshalableMessageComponent `json:"components"`
+	}
+	err := json.Unmarshal(data, &v)
+	if err != nil {
+		return err
+	}
+	*d = ModalSubmitInteractionData(v.modalSubmitInteractionData)
+	d.Components = make([]MessageComponent, len(v.RawComponents))
+	for i, v := range v.RawComponents {
+		d.Components[i] = v.MessageComponent
+	}
+	return err
+}
+
+// ApplicationCommandInteractionDataOption represents an option of a slash command.
+type ApplicationCommandInteractionDataOption struct {
+	Name string                       `json:"name"`
+	Type ApplicationCommandOptionType `json:"type"`
+	// NOTE: Contains the value specified by Type.
+	Value   interface{}                                `json:"value,omitempty"`
+	Options []*ApplicationCommandInteractionDataOption `json:"options,omitempty"`
+
+	// NOTE: autocomplete interaction only.
+	Focused bool `json:"focused,omitempty"`
+}
+
+// IntValue is a utility function for casting option value to integer
+func (o ApplicationCommandInteractionDataOption) IntValue() int64 {
+	if o.Type != ApplicationCommandOptionInteger {
+		panic("IntValue called on data option of type " + o.Type.String())
+	}
+	return int64(o.Value.(float64))
+}
+
+// UintValue is a utility function for casting option value to unsigned integer
+func (o ApplicationCommandInteractionDataOption) UintValue() uint64 {
+	if o.Type != ApplicationCommandOptionInteger {
+		panic("UintValue called on data option of type " + o.Type.String())
+	}
+	return uint64(o.Value.(float64))
+}
+
+// FloatValue is a utility function for casting option value to float
+func (o ApplicationCommandInteractionDataOption) FloatValue() float64 {
+	if o.Type != ApplicationCommandOptionNumber {
+		panic("FloatValue called on data option of type " + o.Type.String())
+	}
+	return o.Value.(float64)
+}
+
+// StringValue is a utility function for casting option value to string
+func (o ApplicationCommandInteractionDataOption) StringValue() string {
+	if o.Type != ApplicationCommandOptionString {
+		panic("StringValue called on data option of type " + o.Type.String())
+	}
+	return o.Value.(string)
+}
+
+// BoolValue is a utility function for casting option value to bool
+func (o ApplicationCommandInteractionDataOption) BoolValue() bool {
+	if o.Type != ApplicationCommandOptionBoolean {
+		panic("BoolValue called on data option of type " + o.Type.String())
+	}
+	return o.Value.(bool)
+}
+
+// ChannelValue is a utility function for casting option value to channel object.
+// s : Session object, if not nil, function additionally fetches all channel's data
+func (o ApplicationCommandInteractionDataOption) ChannelValue(s *Session) *Channel {
+	if o.Type != ApplicationCommandOptionChannel {
+		panic("ChannelValue called on data option of type " + o.Type.String())
+	}
+	chanID := o.Value.(string)
+
+	if s == nil {
+		return &Channel{ID: chanID}
+	}
+
+	ch, err := s.State.Channel(chanID)
+	if err != nil {
+		ch, err = s.Channel(chanID)
+		if err != nil {
+			return &Channel{ID: chanID}
+		}
+	}
+
+	return ch
+}
+
+// RoleValue is a utility function for casting option value to role object.
+// s : Session object, if not nil, function additionally fetches all role's data
+func (o ApplicationCommandInteractionDataOption) RoleValue(s *Session, gID string) *Role {
+	if o.Type != ApplicationCommandOptionRole && o.Type != ApplicationCommandOptionMentionable {
+		panic("RoleValue called on data option of type " + o.Type.String())
+	}
+	roleID := o.Value.(string)
+
+	if s == nil || gID == "" {
+		return &Role{ID: roleID}
+	}
+
+	r, err := s.State.Role(roleID, gID)
+	if err != nil {
+		roles, err := s.GuildRoles(gID)
+		if err == nil {
+			for _, r = range roles {
+				if r.ID == roleID {
+					return r
+				}
+			}
+		}
+		return &Role{ID: roleID}
+	}
+
+	return r
+}
+
+// UserValue is a utility function for casting option value to user object.
+// s : Session object, if not nil, function additionally fetches all user's data
+func (o ApplicationCommandInteractionDataOption) UserValue(s *Session) *User {
+	if o.Type != ApplicationCommandOptionUser && o.Type != ApplicationCommandOptionMentionable {
+		panic("UserValue called on data option of type " + o.Type.String())
+	}
+	userID := o.Value.(string)
+
+	if s == nil {
+		return &User{ID: userID}
+	}
+
+	u, err := s.User(userID)
+	if err != nil {
+		return &User{ID: userID}
+	}
+
+	return u
+}
+
+// InteractionResponseType is type of interaction response.
+type InteractionResponseType uint8
+
+// Interaction response types.
+const (
+	// InteractionResponsePong is for ACK ping event.
+	InteractionResponsePong InteractionResponseType = 1
+	// InteractionResponseChannelMessageWithSource is for responding with a message, showing the user's input.
+	InteractionResponseChannelMessageWithSource InteractionResponseType = 4
+	// InteractionResponseDeferredChannelMessageWithSource acknowledges that the event was received, and that a follow-up will come later.
+	InteractionResponseDeferredChannelMessageWithSource InteractionResponseType = 5
+	// InteractionResponseDeferredMessageUpdate acknowledges that the message component interaction event was received, and message will be updated later.
+	InteractionResponseDeferredMessageUpdate InteractionResponseType = 6
+	// InteractionResponseUpdateMessage is for updating the message to which message component was attached.
+	InteractionResponseUpdateMessage InteractionResponseType = 7
+	// InteractionApplicationCommandAutocompleteResult shows autocompletion results. Autocomplete interaction only.
+	InteractionApplicationCommandAutocompleteResult InteractionResponseType = 8
+	// InteractionResponseModal is for responding to an interaction with a modal window.
+	InteractionResponseModal InteractionResponseType = 9
+)
+
+// InteractionResponse represents a response for an interaction event.
+type InteractionResponse struct {
+	Type InteractionResponseType  `json:"type,omitempty"`
+	Data *InteractionResponseData `json:"data,omitempty"`
+}
+
+// InteractionResponseData is response data for an interaction.
+type InteractionResponseData struct {
+	TTS             bool                    `json:"tts"`
+	Content         string                  `json:"content"`
+	Components      []MessageComponent      `json:"components"`
+	Embeds          []*MessageEmbed         `json:"embeds"`
+	AllowedMentions *MessageAllowedMentions `json:"allowed_mentions,omitempty"`
+	Flags           uint64                  `json:"flags,omitempty"`
+	Files           []*File                 `json:"-"`
+
+	// NOTE: autocomplete interaction only.
+	Choices []*ApplicationCommandOptionChoice `json:"choices,omitempty"`
+
+	// NOTE: modal interaction only.
+
+	CustomID string `json:"custom_id,omitempty"`
+	Title    string `json:"title,omitempty"`
+}
+
+// VerifyInteraction implements message verification of the discord interactions api
+// signing algorithm, as documented here:
+// https://discord.com/developers/docs/interactions/receiving-and-responding#security-and-authorization
+func VerifyInteraction(r *http.Request, key ed25519.PublicKey) bool {
+	var msg bytes.Buffer
+
+	signature := r.Header.Get("X-Signature-Ed25519")
+	if signature == "" {
+		return false
+	}
+
+	sig, err := hex.DecodeString(signature)
+	if err != nil {
+		return false
+	}
+
+	if len(sig) != ed25519.SignatureSize {
+		return false
+	}
+
+	timestamp := r.Header.Get("X-Signature-Timestamp")
+	if timestamp == "" {
+		return false
+	}
+
+	msg.WriteString(timestamp)
+
+	defer r.Body.Close()
+	var body bytes.Buffer
+
+	// at the end of the function, copy the original body back into the request
+	defer func() {
+		r.Body = ioutil.NopCloser(&body)
+	}()
+
+	// copy body into buffers
+	_, err = io.Copy(&msg, io.TeeReader(r.Body, &body))
+	if err != nil {
+		return false
+	}
+
+	return ed25519.Verify(key, msg.Bytes(), sig)
+}

vendor/github.com/bwmarrin/discordgo/locales.go

@@ -0,0 +1,83 @@
+package discordgo
+
+// Locale represents the accepted languages for Discord.
+// https://discord.com/developers/docs/reference#locales
+type Locale string
+
+// String returns the human-readable string of the locale
+func (l Locale) String() string {
+	if name, ok := Locales[l]; ok {
+		return name
+	}
+	return Unknown.String()
+}
+
+// All defined locales in Discord
+const (
+	EnglishUS    Locale = "en-US"
+	EnglishGB    Locale = "en-GB"
+	Bulgarian    Locale = "bg"
+	ChineseCN    Locale = "zh-CN"
+	ChineseTW    Locale = "zh-TW"
+	Croatian     Locale = "hr"
+	Czech        Locale = "cs"
+	Danish       Locale = "da"
+	Dutch        Locale = "nl"
+	Finnish      Locale = "fi"
+	French       Locale = "fr"
+	German       Locale = "de"
+	Greek        Locale = "el"
+	Hindi        Locale = "hi"
+	Hungarian    Locale = "hu"
+	Italian      Locale = "it"
+	Japanese     Locale = "ja"
+	Korean       Locale = "ko"
+	Lithuanian   Locale = "lt"
+	Norwegian    Locale = "no"
+	Polish       Locale = "pl"
+	PortugueseBR Locale = "pt-BR"
+	Romanian     Locale = "ro"
+	Russian      Locale = "ru"
+	SpanishES    Locale = "es-ES"
+	Swedish      Locale = "sv-SE"
+	Thai         Locale = "th"
+	Turkish      Locale = "tr"
+	Ukrainian    Locale = "uk"
+	Vietnamese   Locale = "vi"
+	Unknown      Locale = ""
+)
+
+// Locales is a map of all the languages codes to their names.
+var Locales = map[Locale]string{
+	EnglishUS:    "English (United States)",
+	EnglishGB:    "English (Great Britain)",
+	Bulgarian:    "Bulgarian",
+	ChineseCN:    "Chinese (China)",
+	ChineseTW:    "Chinese (Taiwan)",
+	Croatian:     "Croatian",
+	Czech:        "Czech",
+	Danish:       "Danish",
+	Dutch:        "Dutch",
+	Finnish:      "Finnish",
+	French:       "French",
+	German:       "German",
+	Greek:        "Greek",
+	Hindi:        "Hindi",
+	Hungarian:    "Hungarian",
+	Italian:      "Italian",
+	Japanese:     "Japanese",
+	Korean:       "Korean",
+	Lithuanian:   "Lithuanian",
+	Norwegian:    "Norwegian",
+	Polish:       "Polish",
+	PortugueseBR: "Portuguese (Brazil)",
+	Romanian:     "Romanian",
+	Russian:      "Russian",
+	SpanishES:    "Spanish (Spain)",
+	Swedish:      "Swedish",
+	Thai:         "Thai",
+	Turkish:      "Turkish",
+	Ukrainian:    "Ukrainian",
+	Vietnamese:   "Vietnamese",
+	Unknown:      "unknown",
+}

vendor/github.com/bwmarrin/discordgo/message.go

@@ -10,9 +10,11 @@
 package discordgo
 
 import (
+	"encoding/json"
 	"io"
 	"regexp"
 	"strings"
+	"time"
 )
 
 // MessageType is the type of Message
@@ -21,23 +23,26 @@ type MessageType int
 
 // Block contains the valid known MessageType values
 const (
-	MessageTypeDefault MessageType = iota
-	MessageTypeRecipientAdd
-	MessageTypeRecipientRemove
-	MessageTypeCall
-	MessageTypeChannelNameChange
-	MessageTypeChannelIconChange
-	MessageTypeChannelPinnedMessage
-	MessageTypeGuildMemberJoin
-	MessageTypeUserPremiumGuildSubscription
-	MessageTypeUserPremiumGuildSubscriptionTierOne
-	MessageTypeUserPremiumGuildSubscriptionTierTwo
-	MessageTypeUserPremiumGuildSubscriptionTierThree
-	MessageTypeChannelFollowAdd
-	MessageTypeGuildDiscoveryDisqualified = iota + 1
-	MessageTypeGuildDiscoveryRequalified
-	MessageTypeReply = iota + 4
-	MessageTypeApplicationCommand
+	MessageTypeDefault                               MessageType = 0
+	MessageTypeRecipientAdd                          MessageType = 1
+	MessageTypeRecipientRemove                       MessageType = 2
+	MessageTypeCall                                  MessageType = 3
+	MessageTypeChannelNameChange                     MessageType = 4
+	MessageTypeChannelIconChange                     MessageType = 5
+	MessageTypeChannelPinnedMessage                  MessageType = 6
+	MessageTypeGuildMemberJoin                       MessageType = 7
+	MessageTypeUserPremiumGuildSubscription          MessageType = 8
+	MessageTypeUserPremiumGuildSubscriptionTierOne   MessageType = 9
+	MessageTypeUserPremiumGuildSubscriptionTierTwo   MessageType = 10
+	MessageTypeUserPremiumGuildSubscriptionTierThree MessageType = 11
+	MessageTypeChannelFollowAdd                      MessageType = 12
+	MessageTypeGuildDiscoveryDisqualified            MessageType = 14
+	MessageTypeGuildDiscoveryRequalified             MessageType = 15
+	MessageTypeThreadCreated                         MessageType = 18
+	MessageTypeReply                                 MessageType = 19
+	MessageTypeChatInputCommand                      MessageType = 20
+	MessageTypeThreadStarterMessage                  MessageType = 21
+	MessageTypeContextMenuCommand                    MessageType = 23
 )
 
 // A Message stores all data related to a specific Discord message.
@@ -58,11 +63,11 @@ type Message struct {
 	// CAUTION: this field may be removed in a
 	// future API version; it is safer to calculate
 	// the creation time via the ID.
-	Timestamp Timestamp `json:"timestamp"`
+	Timestamp time.Time `json:"timestamp"`
 
 	// The time at which the last edit of the message
 	// occurred, if it has been edited.
-	EditedTimestamp Timestamp `json:"edited_timestamp"`
+	EditedTimestamp *time.Time `json:"edited_timestamp"`
 
 	// The roles mentioned in the message.
 	MentionRoles []string `json:"mention_roles"`
@@ -80,8 +85,10 @@ type Message struct {
 	// A list of attachments present in the message.
 	Attachments []*MessageAttachment `json:"attachments"`
 
-	// A list of embeds present in the message. Multiple
-	// embeds can currently only be sent by webhooks.
+	// A list of components attached to the message.
+	Components []MessageComponent `json:"-"`
+
+	// A list of embeds present in the message.
 	Embeds []*MessageEmbed `json:"embeds"`
 
 	// A list of users mentioned in the message.
@@ -116,13 +123,70 @@ type Message struct {
 	// Is sent with Rich Presence-related chat embeds
 	Application *MessageApplication `json:"application"`
 
-	// MessageReference contains reference data sent with crossposted messages
+	// MessageReference contains reference data sent with crossposted or reply messages.
+	// This does not contain the reference *to* this message; this is for when *this* message references another.
+	// To generate a reference to this message, use (*Message).Reference().
 	MessageReference *MessageReference `json:"message_reference"`
 
+	// The message associated with the message_reference
+	// NOTE: This field is only returned for messages with a type of 19 (REPLY) or 21 (THREAD_STARTER_MESSAGE).
+	// If the message is a reply but the referenced_message field is not present,
+	// the backend did not attempt to fetch the message that was being replied to, so its state is unknown.
+	// If the field exists but is null, the referenced message was deleted.
+	ReferencedMessage *Message `json:"referenced_message"`
+
+	// Is sent when the message is a response to an Interaction, without an existing message.
+	// This means responses to message component interactions do not include this property,
+	// instead including a MessageReference, as components exist on preexisting messages.
+	Interaction *MessageInteraction `json:"interaction"`
+
 	// The flags of the message, which describe extra features of a message.
 	// This is a combination of bit masks; the presence of a certain permission can
 	// be checked by performing a bitwise AND between this int and the flag.
 	Flags MessageFlags `json:"flags"`
+
+	// The thread that was started from this message, includes thread member object
+	Thread *Channel `json:"thread,omitempty"`
+
+	// An array of Sticker objects, if any were sent.
+	StickerItems []*Sticker `json:"sticker_items"`
+}
+
+// UnmarshalJSON is a helper function to unmarshal the Message.
+func (m *Message) UnmarshalJSON(data []byte) error {
+	type message Message
+	var v struct {
+		message
+		RawComponents []unmarshalableMessageComponent `json:"components"`
+	}
+	err := json.Unmarshal(data, &v)
+	if err != nil {
+		return err
+	}
+	*m = Message(v.message)
+	m.Components = make([]MessageComponent, len(v.RawComponents))
+	for i, v := range v.RawComponents {
+		m.Components[i] = v.MessageComponent
+	}
+	return err
+}
+
+// GetCustomEmojis pulls out all the custom (Non-unicode) emojis from a message and returns a Slice of the Emoji struct.
+func (m *Message) GetCustomEmojis() []*Emoji {
+	var toReturn []*Emoji
+	emojis := EmojiRegex.FindAllString(m.Content, -1)
+	if len(emojis) < 1 {
+		return toReturn
+	}
+	for _, em := range emojis {
+		parts := strings.Split(em, ":")
+		toReturn = append(toReturn, &Emoji{
+			ID:       parts[2][:len(parts[2])-1],
+			Name:     parts[1],
+			Animated: strings.HasPrefix(em, "<a:"),
+		})
+	}
+	return toReturn
 }
 
 // MessageFlags is the flags of "message" (see MessageFlags* consts)
@@ -131,11 +195,26 @@ type MessageFlags int
 
 // Valid MessageFlags values
 const (
-	MessageFlagsCrossPosted MessageFlags = 1 << iota
-	MessageFlagsIsCrossPosted
-	MessageFlagsSupressEmbeds
-	MessageFlagsSourceMessageDeleted
-	MessageFlagsUrgent
+	// MessageFlagsCrossPosted This message has been published to subscribed channels (via Channel Following).
+	MessageFlagsCrossPosted MessageFlags = 1 << 0
+	// MessageFlagsIsCrossPosted this message originated from a message in another channel (via Channel Following).
+	MessageFlagsIsCrossPosted MessageFlags = 1 << 1
+	// MessageFlagsSuppressEmbeds do not include any embeds when serializing this message.
+	MessageFlagsSuppressEmbeds MessageFlags = 1 << 2
+	// TODO: deprecated, remove when compatibility is not needed
+	MessageFlagsSupressEmbeds MessageFlags = 1 << 2
+	// MessageFlagsSourceMessageDeleted the source message for this crosspost has been deleted (via Channel Following).
+	MessageFlagsSourceMessageDeleted MessageFlags = 1 << 3
+	// MessageFlagsUrgent this message came from the urgent message system.
+	MessageFlagsUrgent MessageFlags = 1 << 4
+	// MessageFlagsHasThread this message has an associated thread, with the same id as the message.
+	MessageFlagsHasThread MessageFlags = 1 << 5
+	// MessageFlagsEphemeral this message is only visible to the user who invoked the Interaction.
+	MessageFlagsEphemeral MessageFlags = 1 << 6
+	// MessageFlagsLoading this message is an Interaction Response and the bot is "thinking".
+	MessageFlagsLoading MessageFlags = 1 << 7
+	// MessageFlagsFailedToMentionSomeRolesInThread this message failed to mention some roles and add their members to the thread.
+	MessageFlagsFailedToMentionSomeRolesInThread MessageFlags = 1 << 8
 )
 
 // File stores info about files you e.g. send in messages.
@@ -148,25 +227,34 @@ type File struct {
 // MessageSend stores all parameters you can send with ChannelMessageSendComplex.
 type MessageSend struct {
 	Content         string                  `json:"content,omitempty"`
-	Embed           *MessageEmbed           `json:"embed,omitempty"`
+	Embeds          []*MessageEmbed         `json:"embeds"`
 	TTS             bool                    `json:"tts"`
+	Components      []MessageComponent      `json:"components"`
 	Files           []*File                 `json:"-"`
 	AllowedMentions *MessageAllowedMentions `json:"allowed_mentions,omitempty"`
 	Reference       *MessageReference       `json:"message_reference,omitempty"`
 
 	// TODO: Remove this when compatibility is not required.
 	File *File `json:"-"`
+
+	// TODO: Remove this when compatibility is not required.
+	Embed *MessageEmbed `json:"-"`
 }
 
 // MessageEdit is used to chain parameters via ChannelMessageEditComplex, which
 // is also where you should get the instance from.
 type MessageEdit struct {
 	Content         *string                 `json:"content,omitempty"`
-	Embed           *MessageEmbed           `json:"embed,omitempty"`
+	Components      []MessageComponent      `json:"components"`
+	Embeds          []*MessageEmbed         `json:"embeds"`
 	AllowedMentions *MessageAllowedMentions `json:"allowed_mentions,omitempty"`
+	Flags           MessageFlags            `json:"flags,omitempty"`
 
 	ID      string
 	Channel string
+
+	// TODO: Remove this when compatibility is not required.
+	Embed *MessageEmbed `json:"-"`
 }
 
 // NewMessageEdit returns a MessageEdit struct, initialized
@@ -188,7 +276,14 @@ func (m *MessageEdit) SetContent(str string) *MessageEdit {
 // SetEmbed is a convenience function for setting the embed,
 // so you can chain commands.
 func (m *MessageEdit) SetEmbed(embed *MessageEmbed) *MessageEdit {
-	m.Embed = embed
+	m.Embeds = []*MessageEmbed{embed}
+	return m
+}
+
+// SetEmbeds is a convenience function for setting the embeds,
+// so you can chain commands.
+func (m *MessageEdit) SetEmbeds(embeds []*MessageEmbed) *MessageEdit {
+	m.Embeds = embeds
 	return m
 }
 
@@ -230,13 +325,15 @@ type MessageAllowedMentions struct {
 
 // A MessageAttachment stores data for message attachments.
 type MessageAttachment struct {
-	ID       string `json:"id"`
-	URL      string `json:"url"`
-	ProxyURL string `json:"proxy_url"`
-	Filename string `json:"filename"`
-	Width    int    `json:"width"`
-	Height   int    `json:"height"`
-	Size     int    `json:"size"`
+	ID          string `json:"id"`
+	URL         string `json:"url"`
+	ProxyURL    string `json:"proxy_url"`
+	Filename    string `json:"filename"`
+	ContentType string `json:"content_type"`
+	Width       int    `json:"width"`
+	Height      int    `json:"height"`
+	Size        int    `json:"size"`
+	Ephemeral   bool   `json:"ephemeral"`
 }
 
 // MessageEmbedFooter is a part of a MessageEmbed struct.
@@ -248,7 +345,7 @@ type MessageEmbedFooter struct {
 
 // MessageEmbedImage is a part of a MessageEmbed struct.
 type MessageEmbedImage struct {
-	URL      string `json:"url,omitempty"`
+	URL      string `json:"url"`
 	ProxyURL string `json:"proxy_url,omitempty"`
 	Width    int    `json:"width,omitempty"`
 	Height   int    `json:"height,omitempty"`
@@ -256,7 +353,7 @@ type MessageEmbedImage struct {
 
 // MessageEmbedThumbnail is a part of a MessageEmbed struct.
 type MessageEmbedThumbnail struct {
-	URL      string `json:"url,omitempty"`
+	URL      string `json:"url"`
 	ProxyURL string `json:"proxy_url,omitempty"`
 	Width    int    `json:"width,omitempty"`
 	Height   int    `json:"height,omitempty"`
@@ -278,7 +375,7 @@ type MessageEmbedProvider struct {
 // MessageEmbedAuthor is a part of a MessageEmbed struct.
 type MessageEmbedAuthor struct {
 	URL          string `json:"url,omitempty"`
-	Name         string `json:"name,omitempty"`
+	Name         string `json:"name"`
 	IconURL      string `json:"icon_url,omitempty"`
 	ProxyIconURL string `json:"proxy_icon_url,omitempty"`
 }
@@ -339,23 +436,10 @@ type MessageActivityType int
 
 // Constants for the different types of Message Activity
 const (
-	MessageActivityTypeJoin MessageActivityType = iota + 1
-	MessageActivityTypeSpectate
-	MessageActivityTypeListen
-	MessageActivityTypeJoinRequest
-)
-
-// MessageFlag describes an extra feature of the message
-type MessageFlag int
-
-// Constants for the different bit offsets of Message Flags
-const (
-	// This message has been published to subscribed channels (via Channel Following)
-	MessageFlagCrossposted MessageFlag = 1 << iota
-	// This message originated from a message in another channel (via Channel Following)
-	MessageFlagIsCrosspost
-	// Do not include any embeds when serializing this message
-	MessageFlagSuppressEmbeds
+	MessageActivityTypeJoin        MessageActivityType = 1
+	MessageActivityTypeSpectate    MessageActivityType = 2
+	MessageActivityTypeListen      MessageActivityType = 3
+	MessageActivityTypeJoinRequest MessageActivityType = 5
 )
 
 // MessageApplication is sent with Rich Presence-related chat embeds
@@ -447,3 +531,14 @@ func (m *Message) ContentWithMoreMentionsReplaced(s *Session) (content string, e
 	})
 	return
 }
+
+// MessageInteraction contains information about the application command interaction which generated the message.
+type MessageInteraction struct {
+	ID   string          `json:"id"`
+	Type InteractionType `json:"type"`
+	Name string          `json:"name"`
+	User *User           `json:"user"`
+
+	// Member is only present when the interaction is from a guild.
+	Member *Member `json:"member"`
+}

vendor/github.com/bwmarrin/discordgo/oauth2.go

@@ -18,8 +18,8 @@ type MembershipState int
 
 // Constants for the different stages of the MembershipState
 const (
-	MembershipStateInvited MembershipState = iota + 1
-	MembershipStateAccepted
+	MembershipStateInvited  MembershipState = 1
+	MembershipStateAccepted MembershipState = 2
 )
 
 // A TeamMember struct stores values for a single Team Member, extending the normal User data - note that the user field is partial
@@ -40,28 +40,11 @@ type Team struct {
 	Members     []*TeamMember `json:"members"`
 }
 
-// An Application struct stores values for a Discord OAuth2 Application
-type Application struct {
-	ID                  string    `json:"id,omitempty"`
-	Name                string    `json:"name"`
-	Description         string    `json:"description,omitempty"`
-	Icon                string    `json:"icon,omitempty"`
-	Secret              string    `json:"secret,omitempty"`
-	RedirectURIs        *[]string `json:"redirect_uris,omitempty"`
-	BotRequireCodeGrant bool      `json:"bot_require_code_grant,omitempty"`
-	BotPublic           bool      `json:"bot_public,omitempty"`
-	RPCApplicationState int       `json:"rpc_application_state,omitempty"`
-	Flags               int       `json:"flags,omitempty"`
-	Owner               *User     `json:"owner"`
-	Bot                 *User     `json:"bot"`
-	Team                *Team     `json:"team"`
-}
-
 // Application returns an Application structure of a specific Application
 //   appID : The ID of an Application
 func (s *Session) Application(appID string) (st *Application, err error) {
 
-	body, err := s.RequestWithBucketID("GET", EndpointApplication(appID), nil, EndpointApplication(""))
+	body, err := s.RequestWithBucketID("GET", EndpointOAuth2Application(appID), nil, EndpointOAuth2Application(""))
 	if err != nil {
 		return
 	}
@@ -73,7 +56,7 @@ func (s *Session) Application(appID string) (st *Application, err error) {
 // Applications returns all applications for the authenticated user
 func (s *Session) Applications() (st []*Application, err error) {
 
-	body, err := s.RequestWithBucketID("GET", EndpointApplications, nil, EndpointApplications)
+	body, err := s.RequestWithBucketID("GET", EndpointOAuth2Applications, nil, EndpointOAuth2Applications)
 	if err != nil {
 		return
 	}
@@ -88,12 +71,11 @@ func (s *Session) Applications() (st []*Application, err error) {
 func (s *Session) ApplicationCreate(ap *Application) (st *Application, err error) {
 
 	data := struct {
-		Name         string    `json:"name"`
-		Description  string    `json:"description"`
-		RedirectURIs *[]string `json:"redirect_uris,omitempty"`
-	}{ap.Name, ap.Description, ap.RedirectURIs}
+		Name        string `json:"name"`
+		Description string `json:"description"`
+	}{ap.Name, ap.Description}
 
-	body, err := s.RequestWithBucketID("POST", EndpointApplications, data, EndpointApplications)
+	body, err := s.RequestWithBucketID("POST", EndpointOAuth2Applications, data, EndpointOAuth2Applications)
 	if err != nil {
 		return
 	}
@@ -107,12 +89,11 @@ func (s *Session) ApplicationCreate(ap *Application) (st *Application, err error
 func (s *Session) ApplicationUpdate(appID string, ap *Application) (st *Application, err error) {
 
 	data := struct {
-		Name         string    `json:"name"`
-		Description  string    `json:"description"`
-		RedirectURIs *[]string `json:"redirect_uris,omitempty"`
-	}{ap.Name, ap.Description, ap.RedirectURIs}
+		Name        string `json:"name"`
+		Description string `json:"description"`
+	}{ap.Name, ap.Description}
 
-	body, err := s.RequestWithBucketID("PUT", EndpointApplication(appID), data, EndpointApplication(""))
+	body, err := s.RequestWithBucketID("PUT", EndpointOAuth2Application(appID), data, EndpointOAuth2Application(""))
 	if err != nil {
 		return
 	}
@@ -125,7 +106,7 @@ func (s *Session) ApplicationUpdate(appID string, ap *Application) (st *Applicat
 //   appID : The ID of an Application
 func (s *Session) ApplicationDelete(appID string) (err error) {
 
-	_, err = s.RequestWithBucketID("DELETE", EndpointApplication(appID), nil, EndpointApplication(""))
+	_, err = s.RequestWithBucketID("DELETE", EndpointOAuth2Application(appID), nil, EndpointOAuth2Application(""))
 	if err != nil {
 		return
 	}
@@ -143,7 +124,7 @@ type Asset struct {
 // ApplicationAssets returns an application's assets
 func (s *Session) ApplicationAssets(appID string) (ass []*Asset, err error) {
 
-	body, err := s.RequestWithBucketID("GET", EndpointApplicationAssets(appID), nil, EndpointApplicationAssets(""))
+	body, err := s.RequestWithBucketID("GET", EndpointOAuth2ApplicationAssets(appID), nil, EndpointOAuth2ApplicationAssets(""))
 	if err != nil {
 		return
 	}
@@ -163,7 +144,7 @@ func (s *Session) ApplicationAssets(appID string) (ass []*Asset, err error) {
 // NOTE: func name may change, if I can think up something better.
 func (s *Session) ApplicationBotCreate(appID string) (st *User, err error) {
 
-	body, err := s.RequestWithBucketID("POST", EndpointApplicationsBot(appID), nil, EndpointApplicationsBot(""))
+	body, err := s.RequestWithBucketID("POST", EndpointOAuth2ApplicationsBot(appID), nil, EndpointOAuth2ApplicationsBot(""))
 	if err != nil {
 		return
 	}

vendor/github.com/bwmarrin/discordgo/ratelimit.go

@@ -33,7 +33,7 @@ func NewRatelimiter() *RateLimiter {
 		buckets: make(map[string]*Bucket),
 		global:  new(int64),
 		customRateLimits: []*customRateLimit{
-			&customRateLimit{
+			{
 				suffix:   "//reactions//",
 				requests: 1,
 				reset:    200 * time.Millisecond,

vendor/github.com/bwmarrin/discordgo/state.go

@@ -38,13 +38,15 @@ type State struct {
 	Ready
 
 	// MaxMessageCount represents how many messages per channel the state will store.
-	MaxMessageCount int
-	TrackChannels   bool
-	TrackEmojis     bool
-	TrackMembers    bool
-	TrackRoles      bool
-	TrackVoice      bool
-	TrackPresences  bool
+	MaxMessageCount    int
+	TrackChannels      bool
+	TrackThreads       bool
+	TrackEmojis        bool
+	TrackMembers       bool
+	TrackThreadMembers bool
+	TrackRoles         bool
+	TrackVoice         bool
+	TrackPresences     bool
 
 	guildMap   map[string]*Guild
 	channelMap map[string]*Channel
@@ -58,15 +60,17 @@ func NewState() *State {
 			PrivateChannels: []*Channel{},
 			Guilds:          []*Guild{},
 		},
-		TrackChannels:  true,
-		TrackEmojis:    true,
-		TrackMembers:   true,
-		TrackRoles:     true,
-		TrackVoice:     true,
-		TrackPresences: true,
-		guildMap:       make(map[string]*Guild),
-		channelMap:     make(map[string]*Channel),
-		memberMap:      make(map[string]map[string]*Member),
+		TrackChannels:      true,
+		TrackThreads:       true,
+		TrackEmojis:        true,
+		TrackMembers:       true,
+		TrackThreadMembers: true,
+		TrackRoles:         true,
+		TrackVoice:         true,
+		TrackPresences:     true,
+		guildMap:           make(map[string]*Guild),
+		channelMap:         make(map[string]*Channel),
+		memberMap:          make(map[string]map[string]*Member),
 	}
 }
 
@@ -93,6 +97,11 @@ func (s *State) GuildAdd(guild *Guild) error {
 		s.channelMap[c.ID] = c
 	}
 
+	// Add all the threads to the state in case of thread sync list.
+	for _, t := range guild.Threads {
+		s.channelMap[t.ID] = t
+	}
+
 	// If this guild contains a new member slice, we must regenerate the member map so the pointers stay valid
 	if guild.Members != nil {
 		s.createMemberMap(guild)
@@ -122,6 +131,9 @@ func (s *State) GuildAdd(guild *Guild) error {
 		if guild.Channels == nil {
 			guild.Channels = g.Channels
 		}
+		if guild.Threads == nil {
+			guild.Threads = g.Threads
+		}
 		if guild.VoiceStates == nil {
 			guild.VoiceStates = g.VoiceStates
 		}
@@ -180,21 +192,12 @@ func (s *State) Guild(guildID string) (*Guild, error) {
 	return nil, ErrStateNotFound
 }
 
-// PresenceAdd adds a presence to the current world state, or
-// updates it if it already exists.
-func (s *State) PresenceAdd(guildID string, presence *Presence) error {
-	if s == nil {
-		return ErrNilState
+func (s *State) presenceAdd(guildID string, presence *Presence) error {
+	guild, ok := s.guildMap[guildID]
+	if !ok {
+		return ErrStateNotFound
 	}
 
-	guild, err := s.Guild(guildID)
-	if err != nil {
-		return err
-	}
-
-	s.Lock()
-	defer s.Unlock()
-
 	for i, p := range guild.Presences {
 		if p.User.ID == presence.User.ID {
 			//guild.Presences[i] = presence
@@ -233,6 +236,19 @@ func (s *State) PresenceAdd(guildID string, presence *Presence) error {
 	return nil
 }
 
+// PresenceAdd adds a presence to the current world state, or
+// updates it if it already exists.
+func (s *State) PresenceAdd(guildID string, presence *Presence) error {
+	if s == nil {
+		return ErrNilState
+	}
+
+	s.Lock()
+	defer s.Unlock()
+
+	return s.presenceAdd(guildID, presence)
+}
+
 // PresenceRemove removes a presence from the current world state.
 func (s *State) PresenceRemove(guildID string, presence *Presence) error {
 	if s == nil {
@@ -279,21 +295,12 @@ func (s *State) Presence(guildID, userID string) (*Presence, error) {
 
 // TODO: Consider moving Guild state update methods onto *Guild.
 
-// MemberAdd adds a member to the current world state, or
-// updates it if it already exists.
-func (s *State) MemberAdd(member *Member) error {
-	if s == nil {
-		return ErrNilState
+func (s *State) memberAdd(member *Member) error {
+	guild, ok := s.guildMap[member.GuildID]
+	if !ok {
+		return ErrStateNotFound
 	}
 
-	guild, err := s.Guild(member.GuildID)
-	if err != nil {
-		return err
-	}
-
-	s.Lock()
-	defer s.Unlock()
-
 	members, ok := s.memberMap[member.GuildID]
 	if !ok {
 		return ErrStateNotFound
@@ -306,15 +313,27 @@ func (s *State) MemberAdd(member *Member) error {
 	} else {
 		// We are about to replace `m` in the state with `member`, but first we need to
 		// make sure we preserve any fields that the `member` doesn't contain from `m`.
-		if member.JoinedAt == "" {
+		if member.JoinedAt.IsZero() {
 			member.JoinedAt = m.JoinedAt
 		}
 		*m = *member
 	}
-
 	return nil
 }
 
+// MemberAdd adds a member to the current world state, or
+// updates it if it already exists.
+func (s *State) MemberAdd(member *Member) error {
+	if s == nil {
+		return ErrNilState
+	}
+
+	s.Lock()
+	defer s.Unlock()
+
+	return s.memberAdd(member)
+}
+
 // MemberRemove removes a member from current world state.
 func (s *State) MemberRemove(member *Member) error {
 	if s == nil {
@@ -465,6 +484,9 @@ func (s *State) ChannelAdd(channel *Channel) error {
 		if channel.PermissionOverwrites == nil {
 			channel.PermissionOverwrites = c.PermissionOverwrites
 		}
+		if channel.ThreadMetadata == nil {
+			channel.ThreadMetadata = c.ThreadMetadata
+		}
 
 		*c = *channel
 		return nil
@@ -472,12 +494,18 @@ func (s *State) ChannelAdd(channel *Channel) error {
 
 	if channel.Type == ChannelTypeDM || channel.Type == ChannelTypeGroupDM {
 		s.PrivateChannels = append(s.PrivateChannels, channel)
-	} else {
-		guild, ok := s.guildMap[channel.GuildID]
-		if !ok {
-			return ErrStateNotFound
-		}
+		s.channelMap[channel.ID] = channel
+		return nil
+	}
 
+	guild, ok := s.guildMap[channel.GuildID]
+	if !ok {
+		return ErrStateNotFound
+	}
+
+	if channel.IsThread() {
+		guild.Threads = append(guild.Threads, channel)
+	} else {
 		guild.Channels = append(guild.Channels, channel)
 	}
 
@@ -507,15 +535,26 @@ func (s *State) ChannelRemove(channel *Channel) error {
 				break
 			}
 		}
-	} else {
-		guild, err := s.Guild(channel.GuildID)
-		if err != nil {
-			return err
+		delete(s.channelMap, channel.ID)
+		return nil
+	}
+
+	guild, err := s.Guild(channel.GuildID)
+	if err != nil {
+		return err
+	}
+
+	s.Lock()
+	defer s.Unlock()
+
+	if channel.IsThread() {
+		for i, t := range guild.Threads {
+			if t.ID == channel.ID {
+				guild.Threads = append(guild.Threads[:i], guild.Threads[i+1:]...)
+				break
+			}
 		}
-
-		s.Lock()
-		defer s.Unlock()
-
+	} else {
 		for i, c := range guild.Channels {
 			if c.ID == channel.ID {
 				guild.Channels = append(guild.Channels[:i], guild.Channels[i+1:]...)
@@ -529,6 +568,99 @@ func (s *State) ChannelRemove(channel *Channel) error {
 	return nil
 }
 
+// ThreadListSync syncs guild threads with provided ones.
+func (s *State) ThreadListSync(tls *ThreadListSync) error {
+	guild, err := s.Guild(tls.GuildID)
+	if err != nil {
+		return err
+	}
+
+	s.Lock()
+	defer s.Unlock()
+
+	// This algorithm filters out archived or
+	// threads which are children of channels in channelIDs
+	// and then it adds all synced threads to guild threads and cache
+	index := 0
+outer:
+	for _, t := range guild.Threads {
+		if !t.ThreadMetadata.Archived && tls.ChannelIDs != nil {
+			for _, v := range tls.ChannelIDs {
+				if t.ParentID == v {
+					delete(s.channelMap, t.ID)
+					continue outer
+				}
+			}
+			guild.Threads[index] = t
+			index++
+		} else {
+			delete(s.channelMap, t.ID)
+		}
+	}
+	guild.Threads = guild.Threads[:index]
+	for _, t := range tls.Threads {
+		s.channelMap[t.ID] = t
+		guild.Threads = append(guild.Threads, t)
+	}
+
+	for _, m := range tls.Members {
+		if c, ok := s.channelMap[m.ID]; ok {
+			c.Member = m
+		}
+	}
+
+	return nil
+}
+
+// ThreadMembersUpdate updates thread members list
+func (s *State) ThreadMembersUpdate(tmu *ThreadMembersUpdate) error {
+	thread, err := s.Channel(tmu.ID)
+	if err != nil {
+		return err
+	}
+	s.Lock()
+	defer s.Unlock()
+
+	for idx, member := range thread.Members {
+		for _, removedMember := range tmu.RemovedMembers {
+			if member.ID == removedMember {
+				thread.Members = append(thread.Members[:idx], thread.Members[idx+1:]...)
+				break
+			}
+		}
+	}
+
+	for _, addedMember := range tmu.AddedMembers {
+		thread.Members = append(thread.Members, addedMember.ThreadMember)
+		if addedMember.Member != nil {
+			err = s.memberAdd(addedMember.Member)
+			if err != nil {
+				return err
+			}
+		}
+		if addedMember.Presence != nil {
+			err = s.presenceAdd(tmu.GuildID, addedMember.Presence)
+			if err != nil {
+				return err
+			}
+		}
+	}
+	thread.MemberCount = tmu.MemberCount
+
+	return nil
+}
+
+// ThreadMemberUpdate sets or updates member data for the current user.
+func (s *State) ThreadMemberUpdate(mu *ThreadMemberUpdate) error {
+	thread, err := s.Channel(mu.ID)
+	if err != nil {
+		return err
+	}
+
+	thread.Member = mu.ThreadMember
+	return nil
+}
+
 // GuildChannel gets a channel by ID from a guild.
 // This method is Deprecated, use Channel(channelID)
 func (s *State) GuildChannel(guildID, channelID string) (*Channel, error) {
@@ -637,7 +769,7 @@ func (s *State) MessageAdd(message *Message) error {
 			if message.Content != "" {
 				m.Content = message.Content
 			}
-			if message.EditedTimestamp != "" {
+			if message.EditedTimestamp != nil {
 				m.EditedTimestamp = message.EditedTimestamp
 			}
 			if message.Mentions != nil {
@@ -649,12 +781,15 @@ func (s *State) MessageAdd(message *Message) error {
 			if message.Attachments != nil {
 				m.Attachments = message.Attachments
 			}
-			if message.Timestamp != "" {
+			if !message.Timestamp.IsZero() {
 				m.Timestamp = message.Timestamp
 			}
 			if message.Author != nil {
 				m.Author = message.Author
 			}
+			if message.Components != nil {
+				m.Components = message.Components
+			}
 
 			return nil
 		}
@@ -665,6 +800,7 @@ func (s *State) MessageAdd(message *Message) error {
 	if len(c.Messages) > s.MaxMessageCount {
 		c.Messages = c.Messages[len(c.Messages)-s.MaxMessageCount:]
 	}
+
 	return nil
 }
 
@@ -690,6 +826,7 @@ func (s *State) messageRemoveByID(channelID, messageID string) error {
 	for i, m := range c.Messages {
 		if m.ID == messageID {
 			c.Messages = append(c.Messages[:i], c.Messages[i+1:]...)
+
 			return nil
 		}
 	}
@@ -833,10 +970,18 @@ func (s *State) OnInterface(se *Session, i interface{}) (err error) {
 	case *GuildUpdate:
 		err = s.GuildAdd(t.Guild)
 	case *GuildDelete:
+		var old *Guild
+		old, err = s.Guild(t.ID)
+		if err == nil {
+			oldCopy := *old
+			t.BeforeDelete = &oldCopy
+		}
+
 		err = s.GuildRemove(t.Guild)
 	case *GuildMemberAdd:
+		var guild *Guild
 		// Updates the MemberCount of the guild.
-		guild, err := s.Guild(t.Member.GuildID)
+		guild, err = s.Guild(t.Member.GuildID)
 		if err != nil {
 			return err
 		}
@@ -851,8 +996,9 @@ func (s *State) OnInterface(se *Session, i interface{}) (err error) {
 			err = s.MemberAdd(t.Member)
 		}
 	case *GuildMemberRemove:
+		var guild *Guild
 		// Updates the MemberCount of the guild.
-		guild, err := s.Guild(t.Member.GuildID)
+		guild, err = s.Guild(t.Member.GuildID)
 		if err != nil {
 			return err
 		}
@@ -903,6 +1049,35 @@ func (s *State) OnInterface(se *Session, i interface{}) (err error) {
 		if s.TrackChannels {
 			err = s.ChannelRemove(t.Channel)
 		}
+	case *ThreadCreate:
+		if s.TrackThreads {
+			err = s.ChannelAdd(t.Channel)
+		}
+	case *ThreadUpdate:
+		if s.TrackThreads {
+			old, err := s.Channel(t.ID)
+			if err == nil {
+				oldCopy := *old
+				t.BeforeUpdate = &oldCopy
+			}
+			err = s.ChannelAdd(t.Channel)
+		}
+	case *ThreadDelete:
+		if s.TrackThreads {
+			err = s.ChannelRemove(t.Channel)
+		}
+	case *ThreadMemberUpdate:
+		if s.TrackThreads {
+			err = s.ThreadMemberUpdate(t)
+		}
+	case *ThreadMembersUpdate:
+		if s.TrackThreadMembers {
+			err = s.ThreadMembersUpdate(t)
+		}
+	case *ThreadListSync:
+		if s.TrackThreads {
+			err = s.ThreadListSync(t)
+		}
 	case *MessageCreate:
 		if s.MaxMessageCount != 0 {
 			err = s.MessageAdd(t.Message)

vendor/github.com/bwmarrin/discordgo/user.go

@@ -1,26 +1,25 @@
 package discordgo
 
-import "strings"
-
 // UserFlags is the flags of "user" (see UserFlags* consts)
 // https://discord.com/developers/docs/resources/user#user-object-user-flags
 type UserFlags int
 
 // Valid UserFlags values
 const (
-	UserFlagDiscordEmployee      UserFlags = 1 << 0
-	UserFlagDiscordPartner                 = 1 << 1
-	UserFlagHypeSquadEvents                = 1 << 2
-	UserFlagBugHunterLevel1                = 1 << 3
-	UserFlagHouseBravery                   = 1 << 6
-	UserFlagHouseBrilliance                = 1 << 7
-	UserFlagHouseBalance                   = 1 << 8
-	UserFlagEarlySupporter                 = 1 << 9
-	UserFlagTeamUser                       = 1 << 10
-	UserFlagSystem                         = 1 << 12
-	UserFlagBugHunterLevel2                = 1 << 14
-	UserFlagVerifiedBot                    = 1 << 16
-	UserFlagVerifiedBotDeveloper           = 1 << 17
+	UserFlagDiscordEmployee           UserFlags = 1 << 0
+	UserFlagDiscordPartner            UserFlags = 1 << 1
+	UserFlagHypeSquadEvents           UserFlags = 1 << 2
+	UserFlagBugHunterLevel1           UserFlags = 1 << 3
+	UserFlagHouseBravery              UserFlags = 1 << 6
+	UserFlagHouseBrilliance           UserFlags = 1 << 7
+	UserFlagHouseBalance              UserFlags = 1 << 8
+	UserFlagEarlySupporter            UserFlags = 1 << 9
+	UserFlagTeamUser                  UserFlags = 1 << 10
+	UserFlagSystem                    UserFlags = 1 << 12
+	UserFlagBugHunterLevel2           UserFlags = 1 << 14
+	UserFlagVerifiedBot               UserFlags = 1 << 16
+	UserFlagVerifiedBotDeveloper      UserFlags = 1 << 17
+	UserFlagDiscordCertifiedModerator UserFlags = 1 << 18
 )
 
 // A User stores all data for an individual Discord user.
@@ -55,6 +54,12 @@ type User struct {
 	// Whether the user has multi-factor authentication enabled.
 	MFAEnabled bool `json:"mfa_enabled"`
 
+	// The hash of the user's banner image.
+	Banner string `json:"banner"`
+
+	// User's banner color, encoded as an integer representation of hexadecimal color code
+	AccentColor int `json:"accent_color"`
+
 	// Whether the user is a bot.
 	Bot bool `json:"bot"`
 
@@ -90,17 +95,13 @@ func (u *User) Mention() string {
 //             if size is an empty string, no size parameter will
 //             be added to the URL.
 func (u *User) AvatarURL(size string) string {
-	var URL string
-	if u.Avatar == "" {
-		URL = EndpointDefaultUserAvatar(u.Discriminator)
-	} else if strings.HasPrefix(u.Avatar, "a_") {
-		URL = EndpointUserAvatarAnimated(u.ID, u.Avatar)
-	} else {
-		URL = EndpointUserAvatar(u.ID, u.Avatar)
-	}
-
-	if size != "" {
-		return URL + "?size=" + size
-	}
-	return URL
+	return avatarURL(u.Avatar, EndpointDefaultUserAvatar(u.Discriminator),
+		EndpointUserAvatar(u.ID, u.Avatar), EndpointUserAvatarAnimated(u.ID, u.Avatar), size)
+}
+
+// BannerURL returns the URL of the users's banner image.
+//    size:    The size of the desired banner image as a power of two
+//             Image size can be any power of two between 16 and 4096.
+func (u *User) BannerURL(size string) string {
+	return bannerURL(u.Banner, EndpointUserBanner(u.ID, u.Banner), EndpointUserBannerAnimated(u.ID, u.Banner), size)
 }

vendor/github.com/bwmarrin/discordgo/util.go

@@ -0,0 +1,109 @@
+package discordgo
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/textproto"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// SnowflakeTimestamp returns the creation time of a Snowflake ID relative to the creation of Discord.
+func SnowflakeTimestamp(ID string) (t time.Time, err error) {
+	i, err := strconv.ParseInt(ID, 10, 64)
+	if err != nil {
+		return
+	}
+	timestamp := (i >> 22) + 1420070400000
+	t = time.Unix(0, timestamp*1000000)
+	return
+}
+
+// MultipartBodyWithJSON returns the contentType and body for a discord request
+// data  : The object to encode for payload_json in the multipart request
+// files : Files to include in the request
+func MultipartBodyWithJSON(data interface{}, files []*File) (requestContentType string, requestBody []byte, err error) {
+	body := &bytes.Buffer{}
+	bodywriter := multipart.NewWriter(body)
+
+	payload, err := Marshal(data)
+	if err != nil {
+		return
+	}
+
+	var p io.Writer
+
+	h := make(textproto.MIMEHeader)
+	h.Set("Content-Disposition", `form-data; name="payload_json"`)
+	h.Set("Content-Type", "application/json")
+
+	p, err = bodywriter.CreatePart(h)
+	if err != nil {
+		return
+	}
+
+	if _, err = p.Write(payload); err != nil {
+		return
+	}
+
+	for i, file := range files {
+		h := make(textproto.MIMEHeader)
+		h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file%d"; filename="%s"`, i, quoteEscaper.Replace(file.Name)))
+		contentType := file.ContentType
+		if contentType == "" {
+			contentType = "application/octet-stream"
+		}
+		h.Set("Content-Type", contentType)
+
+		p, err = bodywriter.CreatePart(h)
+		if err != nil {
+			return
+		}
+
+		if _, err = io.Copy(p, file.Reader); err != nil {
+			return
+		}
+	}
+
+	err = bodywriter.Close()
+	if err != nil {
+		return
+	}
+
+	return bodywriter.FormDataContentType(), body.Bytes(), nil
+}
+
+func avatarURL(avatarHash, defaultAvatarURL, staticAvatarURL, animatedAvatarURL, size string) string {
+	var URL string
+	if avatarHash == "" {
+		URL = defaultAvatarURL
+	} else if strings.HasPrefix(avatarHash, "a_") {
+		URL = animatedAvatarURL
+	} else {
+		URL = staticAvatarURL
+	}
+
+	if size != "" {
+		return URL + "?size=" + size
+	}
+	return URL
+}
+
+func bannerURL(bannerHash, staticBannerURL, animatedBannerURL, size string) string {
+	var URL string
+	if bannerHash == "" {
+		return ""
+	} else if strings.HasPrefix(bannerHash, "a_") {
+		URL = animatedBannerURL
+	} else {
+		URL = staticBannerURL
+	}
+
+	if size != "" {
+		return URL + "?size=" + size
+	}
+	return URL
+}

vendor/github.com/bwmarrin/discordgo/voice.go

@@ -831,9 +831,15 @@ func (v *VoiceConnection) opusReceiver(udpConn *net.UDPConn, close <-chan struct
 		copy(nonce[:], recvbuf[0:12])
 		p.Opus, _ = secretbox.Open(nil, recvbuf[12:rlen], &nonce, &v.op4.SecretKey)
 
-		if len(p.Opus) > 8 && recvbuf[0] == 0x90 {
-			// Extension bit is set, first 8 bytes is the extended header
-			p.Opus = p.Opus[8:]
+		// extension bit set, and not a RTCP packet
+		if ((recvbuf[0] & 0x10) == 0x10) && ((recvbuf[1] & 0x80) == 0) {
+			// get extended header length
+			extlen := binary.BigEndian.Uint16(p.Opus[2:4])
+			// 4 bytes (ext header header) + 4*extlen (ext header data)
+			shift := int(4 + 4*extlen)
+			if len(p.Opus) > shift {
+				p.Opus = p.Opus[shift:]
+			}
 		}
 
 		if c != nil {

vendor/github.com/bwmarrin/discordgo/webhook.go

@@ -0,0 +1,49 @@
+package discordgo
+
+// Webhook stores the data for a webhook.
+type Webhook struct {
+	ID        string      `json:"id"`
+	Type      WebhookType `json:"type"`
+	GuildID   string      `json:"guild_id"`
+	ChannelID string      `json:"channel_id"`
+	User      *User       `json:"user"`
+	Name      string      `json:"name"`
+	Avatar    string      `json:"avatar"`
+	Token     string      `json:"token"`
+
+	// ApplicationID is the bot/OAuth2 application that created this webhook
+	ApplicationID string `json:"application_id,omitempty"`
+}
+
+// WebhookType is the type of Webhook (see WebhookType* consts) in the Webhook struct
+// https://discord.com/developers/docs/resources/webhook#webhook-object-webhook-types
+type WebhookType int
+
+// Valid WebhookType values
+const (
+	WebhookTypeIncoming        WebhookType = 1
+	WebhookTypeChannelFollower WebhookType = 2
+)
+
+// WebhookParams is a struct for webhook params, used in the WebhookExecute command.
+type WebhookParams struct {
+	Content         string                  `json:"content,omitempty"`
+	Username        string                  `json:"username,omitempty"`
+	AvatarURL       string                  `json:"avatar_url,omitempty"`
+	TTS             bool                    `json:"tts,omitempty"`
+	Files           []*File                 `json:"-"`
+	Components      []MessageComponent      `json:"components"`
+	Embeds          []*MessageEmbed         `json:"embeds,omitempty"`
+	AllowedMentions *MessageAllowedMentions `json:"allowed_mentions,omitempty"`
+	// NOTE: Works only for followup messages.
+	Flags uint64 `json:"flags,omitempty"`
+}
+
+// WebhookEdit stores data for editing of a webhook message.
+type WebhookEdit struct {
+	Content         string                  `json:"content,omitempty"`
+	Components      []MessageComponent      `json:"components"`
+	Embeds          []*MessageEmbed         `json:"embeds,omitempty"`
+	Files           []*File                 `json:"-"`
+	AllowedMentions *MessageAllowedMentions `json:"allowed_mentions,omitempty"`
+}

vendor/github.com/bwmarrin/discordgo/wsapi.go

@@ -33,7 +33,7 @@ var ErrWSAlreadyOpen = errors.New("web socket already opened")
 var ErrWSNotFound = errors.New("no websocket connection exists")
 
 // ErrWSShardBounds is thrown when you try to use a shard ID that is
-// less than the total shard count
+// more than the total shard count
 var ErrWSShardBounds = errors.New("ShardID must be less than ShardCount")
 
 type resumePacket struct {
@@ -383,6 +383,17 @@ func (s *Session) UpdateListeningStatus(name string) (err error) {
 
 // UpdateStatusComplex allows for sending the raw status update data untouched by discordgo.
 func (s *Session) UpdateStatusComplex(usd UpdateStatusData) (err error) {
+	// The comment does say "untouched by discordgo", but we might need to lie a bit here.
+	// The Discord documentation lists `activities` as being nullable, but in practice this
+	// doesn't seem to be the case. I had filed an issue about this at
+	// https://github.com/discord/discord-api-docs/issues/2559, but as of writing this
+	// haven't had any movement on it, so at this point I'm assuming this is an error,
+	// and am fixing this bug accordingly. Because sending `null` for `activities` instantly
+	// disconnects us, I think that disallowing it from being sent in `UpdateStatusComplex`
+	// isn't that big of an issue.
+	if usd.Activities == nil {
+		usd.Activities = make([]*Activity, 0)
+	}
 
 	s.RLock()
 	defer s.RUnlock()
@@ -398,10 +409,13 @@ func (s *Session) UpdateStatusComplex(usd UpdateStatusData) (err error) {
 }
 
 type requestGuildMembersData struct {
-	GuildIDs  []string `json:"guild_id"`
-	Query     string   `json:"query"`
-	Limit     int      `json:"limit"`
-	Presences bool     `json:"presences"`
+	// TODO: Deprecated. Use string instead of []string
+	GuildIDs  []string  `json:"guild_id"`
+	Query     *string   `json:"query,omitempty"`
+	UserIDs   *[]string `json:"user_ids,omitempty"`
+	Limit     int       `json:"limit"`
+	Nonce     string    `json:"nonce,omitempty"`
+	Presences bool      `json:"presences"`
 }
 
 type requestGuildMembersOp struct {
@@ -414,16 +428,21 @@ type requestGuildMembersOp struct {
 // guildID   : Single Guild ID to request members of
 // query     : String that username starts with, leave empty to return all members
 // limit     : Max number of items to return, or 0 to request all members matched
+// nonce     : Nonce to identify the Guild Members Chunk response
 // presences : Whether to request presences of guild members
-func (s *Session) RequestGuildMembers(guildID string, query string, limit int, presences bool) (err error) {
-	data := requestGuildMembersData{
-		GuildIDs:  []string{guildID},
-		Query:     query,
-		Limit:     limit,
-		Presences: presences,
-	}
-	err = s.requestGuildMembers(data)
-	return
+func (s *Session) RequestGuildMembers(guildID, query string, limit int, nonce string, presences bool) error {
+	return s.RequestGuildMembersBatch([]string{guildID}, query, limit, nonce, presences)
+}
+
+// RequestGuildMembersList requests guild members from the gateway
+// The gateway responds with GuildMembersChunk events
+// guildID   : Single Guild ID to request members of
+// userIDs   : IDs of users to fetch
+// limit     : Max number of items to return, or 0 to request all members matched
+// nonce     : Nonce to identify the Guild Members Chunk response
+// presences : Whether to request presences of guild members
+func (s *Session) RequestGuildMembersList(guildID string, userIDs []string, limit int, nonce string, presences bool) error {
+	return s.RequestGuildMembersBatchList([]string{guildID}, userIDs, limit, nonce, presences)
 }
 
 // RequestGuildMembersBatch requests guild members from the gateway
@@ -431,12 +450,37 @@ func (s *Session) RequestGuildMembers(guildID string, query string, limit int, p
 // guildID   : Slice of guild IDs to request members of
 // query     : String that username starts with, leave empty to return all members
 // limit     : Max number of items to return, or 0 to request all members matched
+// nonce     : Nonce to identify the Guild Members Chunk response
 // presences : Whether to request presences of guild members
-func (s *Session) RequestGuildMembersBatch(guildIDs []string, query string, limit int, presences bool) (err error) {
+//
+// NOTE: this function is deprecated, please use RequestGuildMembers instead
+func (s *Session) RequestGuildMembersBatch(guildIDs []string, query string, limit int, nonce string, presences bool) (err error) {
 	data := requestGuildMembersData{
 		GuildIDs:  guildIDs,
-		Query:     query,
+		Query:     &query,
 		Limit:     limit,
+		Nonce:     nonce,
+		Presences: presences,
+	}
+	err = s.requestGuildMembers(data)
+	return
+}
+
+// RequestGuildMembersBatchList requests guild members from the gateway
+// The gateway responds with GuildMembersChunk events
+// guildID   : Slice of guild IDs to request members of
+// userIDs   : IDs of users to fetch
+// limit     : Max number of items to return, or 0 to request all members matched
+// nonce     : Nonce to identify the Guild Members Chunk response
+// presences : Whether to request presences of guild members
+//
+// NOTE: this function is deprecated, please use RequestGuildMembersList instead
+func (s *Session) RequestGuildMembersBatchList(guildIDs []string, userIDs []string, limit int, nonce string, presences bool) (err error) {
+	data := requestGuildMembersData{
+		GuildIDs:  guildIDs,
+		UserIDs:   &userIDs,
+		Limit:     limit,
+		Nonce:     nonce,
 		Presences: presences,
 	}
 	err = s.requestGuildMembers(data)
@@ -755,13 +799,13 @@ func (s *Session) identify() error {
 	s.log(LogDebug, "called")
 
 	// TODO: This is a temporary block of code to help
-	// maintain backwards compatability
+	// maintain backwards compatibility
 	if s.Compress == false {
 		s.Identify.Compress = false
 	}
 
 	// TODO: This is a temporary block of code to help
-	// maintain backwards compatability
+	// maintain backwards compatibility
 	if s.Token != "" && s.Identify.Token == "" {
 		s.Identify.Token = s.Token
 	}

vendor/github.com/d5/tengo/v2/README.md

@@ -147,7 +147,4 @@ fmt.Println(res) // "success"
 - Syntax Highlighters: [VSCode](https://github.com/lissein/vscode-tengo), [Atom](https://github.com/d5/tengo-atom)
 - **Why the name Tengo?** It's from [1Q84](https://en.wikipedia.org/wiki/1Q84).
 
-##
-
-:hearts: Like writing Go code? Come work at Skool. [We're hiring!](https://jobs.lever.co/skool)
 

vendor/github.com/d5/tengo/v2/compiler.go

@@ -1220,14 +1220,14 @@ func (c *Compiler) optimizeFunc(node parser.Node) {
 	iterateInstructions(c.scopes[c.scopeIndex].Instructions,
 		func(pos int, opcode parser.Opcode, operands []int) bool {
 			switch {
+			case dsts[pos]:
+				dstIdx++
+				deadCode = false
 			case opcode == parser.OpReturn:
 				if deadCode {
 					return true
 				}
 				deadCode = true
-			case dsts[pos]:
-				dstIdx++
-				deadCode = false
 			case deadCode:
 				return true
 			}
@@ -1242,6 +1242,7 @@ func (c *Compiler) optimizeFunc(node parser.Node) {
 	var appendReturn bool
 	endPos := len(c.scopes[c.scopeIndex].Instructions)
 	newEndPost := len(newInsts)
+
 	iterateInstructions(newInsts,
 		func(pos int, opcode parser.Opcode, operands []int) bool {
 			switch opcode {

vendor/github.com/d5/tengo/v2/objects.go

@@ -1577,9 +1577,8 @@ func (o *Undefined) Value() Object {
 // UserFunction represents a user function.
 type UserFunction struct {
 	ObjectImpl
-	Name       string
-	Value      CallableFunc
-	EncodingID string
+	Name  string
+	Value CallableFunc
 }
 
 // TypeName returns the name of the type.
@@ -1593,7 +1592,7 @@ func (o *UserFunction) String() string {
 
 // Copy returns a copy of the type.
 func (o *UserFunction) Copy() Object {
-	return &UserFunction{Value: o.Value}
+	return &UserFunction{Value: o.Value, Name: o.Name}
 }
 
 // Equals returns true if the value of the type is equal to the value of

vendor/github.com/d5/tengo/v2/parser/parser.go

@@ -375,7 +375,12 @@ func (p *Parser) parseOperand() Expr {
 	case token.Ident:
 		return p.parseIdent()
 	case token.Int:
-		v, _ := strconv.ParseInt(p.tokenLit, 10, 64)
+		v, err := strconv.ParseInt(p.tokenLit, 0, 64)
+		if err == strconv.ErrRange {
+			p.error(p.pos, "number out of range")
+		} else if err != nil {
+			p.error(p.pos, "invalid integer")
+		}
 		x := &IntLit{
 			Value:    v,
 			ValuePos: p.pos,
@@ -383,8 +388,14 @@ func (p *Parser) parseOperand() Expr {
 		}
 		p.next()
 		return x
+
 	case token.Float:
-		v, _ := strconv.ParseFloat(p.tokenLit, 64)
+		v, err := strconv.ParseFloat(p.tokenLit, 64)
+		if err == strconv.ErrRange {
+			p.error(p.pos, "number out of range")
+		} else if err != nil {
+			p.error(p.pos, "invalid float")
+		}
 		x := &FloatLit{
 			Value:    v,
 			ValuePos: p.pos,
@@ -447,10 +458,11 @@ func (p *Parser) parseOperand() Expr {
 		return p.parseErrorExpr()
 	case token.Immutable: // immutable expression
 		return p.parseImmutableExpr()
+	default:
+		p.errorExpected(p.pos, "operand")
 	}
 
 	pos := p.pos
-	p.errorExpected(pos, "operand")
 	p.advance(stmtStart)
 	return &BadExpr{From: pos, To: p.pos}
 }