Release v1.15.1

This adds support for the discord category option that can be used
to group channels in. This means we can have multiple channels with
the same name.

We add the option to specify a category in the channel option of a
discord account under [[gateway]]

Besides channel="channel" or channel="ID:channelID", now also
channel="category/channel" can be specified.

This change remains backwards compatible with people that haven't
specified the category and incorporates the fix in #861

.gitignore

@@ -0,0 +1,5 @@
+# Exclude matterbridge binary
+matterbridge
+
+# Exclude configuration file
+matterbridge.toml

.travis.yml

@@ -23,7 +23,7 @@ jobs:
     go: 1.12.x
     env:
     - GO111MODULE=on
-    - GOLANGCI_VERSION="v1.16.0"
+    - GOLANGCI_VERSION="v1.17.1"
   - stage: test
     # Run tests in a combination of Go environments.
     script: ./ci/test.sh

README.md

@@ -48,7 +48,7 @@
    * [API](#API)
  * [Chat with us](#chat-with-us)
  * [Screenshots](https://github.com/42wim/matterbridge/wiki/)
- * [Installing](#installing)
+ * [Installing/upgrading](#installing--upgrading)
    * [Binaries](#binaries)
  * [Building](#building)
  * [Configuration](#configuration)
@@ -127,15 +127,20 @@ Questions or want to test on your favorite platform? Join below:
 ## Screenshots
 See https://github.com/42wim/matterbridge/wiki
 
-## Installing
+## Installing / upgrading
 ### Binaries
-* Latest stable release [v1.15.0](https://github.com/42wim/matterbridge/releases/latest)
+* Latest stable release [v1.15.1](https://github.com/42wim/matterbridge/releases/latest)
 * Development releases (follows master) can be downloaded [here](https://dl.bintray.com/42wim/nightly/)
 
+To install or upgrade just download the latest [binary](https://github.com/42wim/matterbridge/releases/latest) and 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
 * [Overview](https://repology.org/metapackage/matterbridge/versions)
 
 ## Building
+Most people just want to use binaries, you can find those [here](https://github.com/42wim/matterbridge/releases/latest)
+
+If you really want to build from source, follow these instructions:
 Go 1.9+ is required. Make sure you have [Go](https://golang.org/doc/install) properly installed, including setting up your [GOPATH](https://golang.org/doc/code.html#GOPATH).
 
 After Go is setup, download matterbridge to your $GOPATH directory.

bridge/config/config.go

@@ -127,6 +127,7 @@ type Protocol struct {
 	ShowUserTyping         bool       // slack
 	ShowEmbeds             bool       // discord
 	SkipTLSVerify          bool       // IRC, mattermost
+	SkipVersionCheck       bool       // mattermost
 	StripNick              bool       // all protocols
 	SyncTopic              bool       // slack
 	TengoModifyMessage     string     // general

bridge/discord/discord.go

@@ -75,6 +75,7 @@ func (b *Bdiscord) Connect() error {
 	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)
 	err = b.c.Open()
@@ -95,11 +96,11 @@ func (b *Bdiscord) Connect() error {
 	for _, guild := range guilds {
 		if guild.Name == serverName || guild.ID == serverName {
 			b.channels, err = b.c.GuildChannels(guild.ID)
-			b.guildID = guild.ID
-			guildFound = true
 			if err != nil {
 				break
 			}
+			b.guildID = guild.ID
+			guildFound = true
 		}
 	}
 	b.channelsMutex.Unlock()
@@ -208,11 +209,21 @@ func (b *Bdiscord) Send(msg config.Message) (string, error) {
 	b.channelsMutex.RUnlock()
 
 	// Use webhook to send the message
-	if wID != "" {
+	if wID != "" && msg.Event != config.EventMsgDelete {
 		// skip events
 		if msg.Event != "" && msg.Event != config.EventJoinLeave && msg.Event != config.EventTopicChange {
 			return "", nil
 		}
+
+		// If we are editing a message, delete the old message
+		if msg.ID != "" {
+			b.Log.Debugf("Deleting edited webhook message")
+			err := b.c.ChannelMessageDelete(channelID, msg.ID)
+			if err != nil {
+				b.Log.Errorf("Could not delete edited webhook message: %s", err)
+			}
+		}
+
 		b.Log.Debugf("Broadcasting using Webhook")
 		for _, f := range msg.Extra["file"] {
 			fi := f.(config.FileInfo)
@@ -250,7 +261,7 @@ func (b *Bdiscord) Send(msg config.Message) (string, error) {
 				return "", err
 			}
 		}
-		err := b.c.WebhookExecute(
+		msg, err := b.webhookExecute(
 			wID,
 			wToken,
 			true,
@@ -259,7 +270,7 @@ func (b *Bdiscord) Send(msg config.Message) (string, error) {
 				Username:  msg.Username,
 				AvatarURL: msg.Avatar,
 			})
-		return "", err
+		return msg.ID, err
 	}
 
 	b.Log.Debugf("Broadcasting using token (API)")

bridge/discord/handlers.go

@@ -16,6 +16,27 @@ func (b *Bdiscord) messageDelete(s *discordgo.Session, m *discordgo.MessageDelet
 	b.Remote <- rmsg
 }
 
+// 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
+	for _, msgID := range m.Messages {
+		rmsg := config.Message{
+			Account: b.Account,
+			ID:      msgID,
+			Event:   config.EventMsgDelete,
+			Text:    config.EventMsgDelete,
+			Channel: "ID:" + m.ChannelID,
+		}
+
+		if !b.useChannelID {
+			rmsg.Channel = b.getChannelName(m.ChannelID)
+		}
+
+		b.Log.Debugf("<= Sending message from %s to gateway", b.Account)
+		b.Log.Debugf("<= Message is %#v", rmsg)
+		b.Remote <- rmsg
+	}
+}
+
 func (b *Bdiscord) messageUpdate(s *discordgo.Session, m *discordgo.MessageUpdate) { //nolint:unparam
 	if b.GetBool("EditDisable") {
 		return

bridge/discord/helpers.go

@@ -1,6 +1,7 @@
 package bdiscord
 
 import (
+	"encoding/json"
 	"errors"
 	"regexp"
 	"strings"
@@ -51,6 +52,9 @@ func (b *Bdiscord) getGuildMemberByNick(nick string) (*discordgo.Member, error)
 }
 
 func (b *Bdiscord) getChannelID(name string) string {
+	if strings.Contains(name, "/") {
+		return b.getCategoryChannelID(name)
+	}
 	b.channelsMutex.RLock()
 	defer b.channelsMutex.RUnlock()
 
@@ -59,25 +63,70 @@ func (b *Bdiscord) getChannelID(name string) string {
 		return idcheck[1]
 	}
 	for _, channel := range b.channels {
-		if channel.Name == name {
+		if channel.Name == name && channel.Type == discordgo.ChannelTypeGuildText {
 			return channel.ID
 		}
 	}
 	return ""
 }
 
+func (b *Bdiscord) getCategoryChannelID(name string) string {
+	b.channelsMutex.RLock()
+	defer b.channelsMutex.RUnlock()
+	res := strings.Split(name, "/")
+	// shouldn't happen because function should be only called from getChannelID
+	if len(res) != 2 {
+		return ""
+	}
+	catName, chanName := res[0], res[1]
+	for _, channel := range b.channels {
+		// if we have a parentID, lookup the name of that parent (category)
+		// and if it matches return it
+		if channel.Name == chanName && channel.ParentID != "" {
+			for _, cat := range b.channels {
+				if cat.ID == channel.ParentID && cat.Name == catName {
+					return channel.ID
+				}
+			}
+		}
+	}
+	return ""
+}
+
 func (b *Bdiscord) getChannelName(id string) string {
 	b.channelsMutex.RLock()
 	defer b.channelsMutex.RUnlock()
 
 	for _, channel := range b.channels {
 		if channel.ID == id {
-			return channel.Name
+			return b.getCategoryChannelName(channel.Name, channel.ParentID)
 		}
 	}
 	return ""
 }
 
+func (b *Bdiscord) getCategoryChannelName(name, parentID string) string {
+	var usesCat bool
+	// do we have a category configuration in the channel config
+	for _, c := range b.channelInfoMap {
+		if strings.Contains(c.Name, "/") {
+			usesCat = true
+			break
+		}
+	}
+	// configuration without category, return the normal channel name
+	if !usesCat {
+		return name
+	}
+	// create a category/channel response
+	for _, c := range b.channels {
+		if c.ID == parentID {
+			name = c.Name + "/" + name
+		}
+	}
+	return name
+}
+
 var (
 	// See https://discordapp.com/developers/docs/reference#message-formatting.
 	channelMentionRE = regexp.MustCompile("<#[0-9]+>")
@@ -87,12 +136,12 @@ var (
 
 func (b *Bdiscord) replaceChannelMentions(text string) string {
 	replaceChannelMentionFunc := func(match string) string {
-		var err error
 		channelID := match[2 : len(match)-1]
-
 		channelName := b.getChannelName(channelID)
+
 		// If we don't have the channel refresh our list.
 		if channelName == "" {
+			var err error
 			b.channels, err = b.c.GuildChannels(b.guildID)
 			if err != nil {
 				return "#unknownchannel"
@@ -187,3 +236,26 @@ func enumerateUsernames(s string) []string {
 	}
 	return usernames
 }
+
+// webhookExecute executes a webhook.
+// webhookID: The ID of a webhook.
+// token    : The auth token for the webhook
+// wait	    : Waits for server confirmation of message send and ensures that the return struct is populated (it is nil otherwise)
+func (b *Bdiscord) webhookExecute(webhookID, token string, wait bool, data *discordgo.WebhookParams) (st *discordgo.Message, err error) {
+	uri := discordgo.EndpointWebhookToken(webhookID, token)
+
+	if wait {
+		uri += "?wait=true"
+	}
+	response, err := b.c.RequestWithBucketID("POST", uri, data, discordgo.EndpointWebhookToken("", ""))
+	if !wait || err != nil {
+		return nil, err
+	}
+
+	err = json.Unmarshal(response, &st)
+	if err != nil {
+		return nil, discordgo.ErrJSONUnmarshal
+	}
+
+	return st, nil
+}

bridge/mattermost/helpers.go

@@ -70,6 +70,7 @@ func (b *Bmattermost) apiLogin() error {
 		b.mc.SetLogLevel("debug")
 	}
 	b.mc.SkipTLSVerify = b.GetBool("SkipTLSVerify")
+	b.mc.SkipVersionCheck = b.GetBool("SkipVersionCheck")
 	b.mc.NoTLS = b.GetBool("NoTLS")
 	b.Log.Infof("Connecting %s (team: %s) on %s", b.GetString("Login"), b.GetString("Team"), b.GetString("Server"))
 	err := b.mc.Login()

bridge/telegram/handlers.go

@@ -5,10 +5,11 @@ import (
 	"regexp"
 	"strconv"
 	"strings"
+	"unicode/utf16"
 
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/bridge/helper"
-	"github.com/go-telegram-bot-api/telegram-bot-api"
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api"
 )
 
 func (b *Btelegram) handleUpdate(rmsg *config.Message, message, posted, edited *tgbotapi.Message) *tgbotapi.Message {
@@ -375,8 +376,13 @@ func (b *Btelegram) handleEntities(rmsg *config.Message, message *tgbotapi.Messa
 				b.Log.Errorf("entity text_link url parse failed: %s", err)
 				continue
 			}
-			link := rmsg.Text[e.Offset : e.Offset+e.Length]
-			rmsg.Text = strings.Replace(rmsg.Text, link, url.String(), 1)
+			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))
+				continue
+			}
+			link := utf16.Decode(utfEncodedString[e.Offset : e.Offset+e.Length])
+			rmsg.Text = strings.Replace(rmsg.Text, string(link), url.String(), 1)
 		}
 	}
 }

bridge/xmpp/xmpp.go

@@ -2,7 +2,9 @@ package bxmpp
 
 import (
 	"crypto/tls"
+	"fmt"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/42wim/matterbridge/bridge"
@@ -19,6 +21,8 @@ type Bxmpp struct {
 	startTime time.Time
 	xc        *xmpp.Client
 	xmppMap   map[string]string
+	connected bool
+	sync.RWMutex
 }
 
 func New(cfg *bridge.Config) bridge.Bridger {
@@ -55,6 +59,10 @@ func (b *Bxmpp) JoinChannel(channel config.ChannelInfo) error {
 }
 
 func (b *Bxmpp) Send(msg config.Message) (string, error) {
+	// should be fixed by using a cache instead of dropping
+	if !b.Connected() {
+		return "", fmt.Errorf("bridge %s not connected, dropping message %#v to bridge", b.Account, msg)
+	}
 	// ignore delete messages
 	if msg.Event == config.EventMsgDelete {
 		return "", nil
@@ -124,6 +132,7 @@ func (b *Bxmpp) createXMPP() error {
 }
 
 func (b *Bxmpp) manageConnection() {
+	b.setConnected(true)
 	initial := true
 	bf := &backoff.Backoff{
 		Min:    time.Second,
@@ -148,6 +157,7 @@ func (b *Bxmpp) manageConnection() {
 
 		if err := b.handleXMPP(); err != nil {
 			b.Log.WithError(err).Error("Disconnected.")
+			b.setConnected(false)
 		}
 
 		// Reconnection loop using an exponential back-off strategy. We
@@ -159,6 +169,7 @@ func (b *Bxmpp) manageConnection() {
 
 			b.Log.Infof("Reconnecting now.")
 			if err := b.createXMPP(); err == nil {
+				b.setConnected(true)
 				bf.Reset()
 				break
 			}
@@ -334,3 +345,15 @@ func (b *Bxmpp) skipMessage(message xmpp.Chat) bool {
 	// skip delayed messages
 	return !message.Stamp.IsZero() && time.Since(message.Stamp).Minutes() > 5
 }
+
+func (b *Bxmpp) setConnected(state bool) {
+	b.Lock()
+	b.connected = state
+	defer b.Unlock()
+}
+
+func (b *Bxmpp) Connected() bool {
+	b.RLock()
+	defer b.RUnlock()
+	return b.connected
+}

changelog.md

@@ -1,3 +1,15 @@
+# dev
+
+# v1.15.1
+## Enhancements
+* discord: Support bulk deletions #851
+* discord: Support channels in categories #863 (use category/channel. See matterbridge.toml.sample for more info)
+* mattermost: Add an option to skip the Mattermost server version check #849
+
+## Bugfix
+* xmpp: fix segfault when disconnected/reconnected #856
+* telegram: fix panic in handleEntities #858
+
 # v1.15.0
 ## New features
 * Add scripting (tengo) support for every outgoing message (#806)

gateway/router.go

@@ -125,7 +125,8 @@ func (r *Router) handleReceive() {
 		r.handleEventGetChannelMembers(&msg)
 		r.handleEventFailure(&msg)
 		r.handleEventRejoinChannels(&msg)
-		idx := 0
+
+		filesHandled := false
 		for _, gw := range r.Gateways {
 			// record all the message ID's of the different bridges
 			var msgIDs []*BrMsgID
@@ -134,17 +135,26 @@ func (r *Router) handleReceive() {
 			}
 			msg.Timestamp = time.Now()
 			gw.modifyMessage(&msg)
-			if idx == 0 {
+			if !filesHandled {
 				gw.handleFiles(&msg)
+				filesHandled = true
 			}
 			for _, br := range gw.Bridges {
 				msgIDs = append(msgIDs, gw.handleMessage(&msg, br)...)
 			}
-			// only add the message ID if it doesn't already exists
-			if _, ok := gw.Messages.Get(msg.Protocol + " " + msg.ID); !ok && msg.ID != "" {
-				gw.Messages.Add(msg.Protocol+" "+msg.ID, msgIDs)
+
+			if msg.ID != "" {
+				_, exists := gw.Messages.Get(msg.Protocol + " " + msg.ID)
+
+				// Only add the message ID if it doesn't already exist
+				//
+				// For some bridges we always add/update the message ID.
+				// This is necessary as msgIDs will change if a bridge returns
+				// a different ID in response to edits.
+				if !exists || msg.Protocol == "discord" {
+					gw.Messages.Add(msg.Protocol+" "+msg.ID, msgIDs)
+				}
 			}
-			idx++
 		}
 	}
 }

go.mod

@@ -3,27 +3,24 @@ module github.com/42wim/matterbridge
 require (
 	github.com/42wim/go-gitter v0.0.0-20170828205020-017310c2d557
 	github.com/Baozisoftware/qrcode-terminal-go v0.0.0-20170407111555-c0650d8dff0f
-	github.com/BurntSushi/toml v0.0.0-20170318202913-d94612f9fc14 // indirect
 	github.com/Jeffail/gabs v1.1.1 // indirect
 	github.com/Philipp15b/go-steam v1.0.1-0.20180818081528-681bd9573329
 	github.com/Rhymen/go-whatsapp v0.0.2
 	github.com/bwmarrin/discordgo v0.19.0
-	github.com/d5/tengo v1.20.0
+	github.com/d5/tengo v1.24.1
 	github.com/dfordsoft/golib v0.0.0-20180902042739-76ee6ab99bec
 	github.com/fsnotify/fsnotify v1.4.7
 	github.com/go-telegram-bot-api/telegram-bot-api v4.6.5-0.20181225215658-ec221ba9ea45+incompatible
-	github.com/google/gops v0.3.5
+	github.com/google/gops v0.3.6
 	github.com/gopackage/ddp v0.0.0-20170117053602-652027933df4 // indirect
 	github.com/gopherjs/gopherjs v0.0.0-20180628210949-0892b62f0d9f // indirect
-	github.com/gorilla/schema v1.0.2
+	github.com/gorilla/schema v1.1.0
 	github.com/gorilla/websocket v1.4.0
-	github.com/hashicorp/golang-lru v0.5.0
+	github.com/hashicorp/golang-lru v0.5.1
 	github.com/hpcloud/tail v1.0.0 // indirect
 	github.com/jpillora/backoff v0.0.0-20180909062703-3050d21c67d7
 	github.com/jtolds/gls v4.2.1+incompatible // indirect
-	github.com/kardianos/osext v0.0.0-20170510131534-ae77be60afb1 // indirect
-	github.com/kr/pretty v0.1.0 // indirect
-	github.com/labstack/echo/v4 v4.0.0
+	github.com/labstack/echo/v4 v4.1.6
 	github.com/lrstanley/girc v0.0.0-20190210212025-51b8e096d398
 	github.com/lusis/go-slackbot v0.0.0-20180109053408-401027ccfef5 // indirect
 	github.com/lusis/slack-test v0.0.0-20180109053238-3c758769bfa6 // indirect
@@ -41,35 +38,28 @@ require (
 	github.com/nlopes/slack v0.5.0
 	github.com/onsi/ginkgo v1.6.0 // indirect
 	github.com/onsi/gomega v1.4.1 // indirect
-	github.com/paulrosania/go-charset v0.0.0-20151028000031-621bb39fcc83
+	github.com/paulrosania/go-charset v0.0.0-20190326053356-55c9d7a5834c
 	github.com/pborman/uuid v0.0.0-20160216163710-c55201b03606 // indirect
 	github.com/peterhellberg/emojilib v0.0.0-20190124112554-c18758d55320
 	github.com/rs/xid v1.2.1
 	github.com/russross/blackfriday v1.5.2
 	github.com/saintfish/chardet v0.0.0-20120816061221-3af4cd4741ca
 	github.com/shazow/ssh-chat v0.0.0-20190125184227-81d7e1686296
-	github.com/sirupsen/logrus v1.3.0
+	github.com/sirupsen/logrus v1.4.2
 	github.com/smartystreets/assertions v0.0.0-20180803164922-886ec427f6b9 // indirect
 	github.com/smartystreets/goconvey v0.0.0-20180222194500-ef6db91d284a // indirect
-	github.com/spf13/viper v1.3.1
+	github.com/spf13/viper v1.4.0
 	github.com/stretchr/testify v1.3.0
 	github.com/technoweenie/multipartstreamer v1.0.1 // indirect
 	github.com/x-cray/logrus-prefixed-formatter v0.5.2 // indirect
-	github.com/zfjagann/golang-ring v0.0.0-20190106091943-a88bb6aef447
+	github.com/zfjagann/golang-ring v0.0.0-20190304061218-d34796e0a6c2
 	gitlab.com/golang-commonmark/html v0.0.0-20180917080848-cfaf75183c4a // indirect
 	gitlab.com/golang-commonmark/linkify v0.0.0-20180917065525-c22b7bdb1179 // indirect
 	gitlab.com/golang-commonmark/markdown v0.0.0-20181102083822-772775880e1f
 	gitlab.com/golang-commonmark/mdurl v0.0.0-20180912090424-e5bce34c34f2 // indirect
 	gitlab.com/golang-commonmark/puny v0.0.0-20180912090636-2cd490539afe // indirect
 	gitlab.com/opennota/wd v0.0.0-20180912061657-c5d65f63c638 // indirect
-	go.uber.org/atomic v1.3.2 // indirect
-	go.uber.org/multierr v1.1.0 // indirect
-	go.uber.org/zap v1.9.1 // indirect
-	golang.org/x/image v0.0.0-20190220214146-31aff87c08e9
-	golang.org/x/net v0.0.0-20190110200230-915654e7eabc // indirect
-	golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4 // indirect
-	golang.org/x/sys v0.0.0-20190222171317-cd391775e71e // indirect
-	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
+	golang.org/x/image v0.0.0-20190616094056-33659d3de4f5
 	gopkg.in/fsnotify.v1 v1.4.7 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0 // indirect
 	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect

go.sum

@@ -1,11 +1,13 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/42wim/go-gitter v0.0.0-20170828205020-017310c2d557 h1:IZtuWGfzQnKnCSu+vl8WGLhpVQ5Uvy3rlSwqXSg+sQg=
 github.com/42wim/go-gitter v0.0.0-20170828205020-017310c2d557/go.mod h1:jL0YSXMs/txjtGJ4PWrmETOk6KUHMDPMshgQZlTeB3Y=
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@@ -93,12 +130,15 @@ github.com/matterbridge/logrus-prefixed-formatter v0.0.0-20180806162718-01618749
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 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4 h1:YUO/7uOKsKeq9UokNS62b8FYywz3ker1l1vDZRCRefw=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -224,7 +320,13 @@ gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/natefinch/lumberjack.v2 v2.0.0 h1:1Lc07Kr7qY4U2YPouBjpCLxpiyxIVoxqXgkXLknAOE8=
 gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=
+gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+rsc.io/goversion v1.0.0 h1:/IhXBiai89TyuerPquiZZ39IQkTfAUbZB2awsyYZ/2c=
+rsc.io/goversion v1.0.0/go.mod h1:Eih9y/uIBS3ulggl7KNJ09xGSLcuNaLgmvvqa07sgfo=

matterbridge.go

@@ -15,7 +15,7 @@ import (
 )
 
 var (
-	version = "1.15.0"
+	version = "1.15.1"
 	githash string
 
 	flagConfig  = flag.String("conf", "matterbridge.toml", "config file")

matterbridge.toml.sample

@@ -350,6 +350,12 @@ NickFormatter="plain"
 #OPTIONAL (default 4)
 NicksPerRow=4
 
+#Skip the Mattermost server version checks that are normally done when connecting.
+#The usage scenario for this feature would be when the Mattermost instance is hosted behind a
+#reverse proxy that suppresses "non-standard" response headers in flight.
+#OPTIONAL (default false)
+SkipVersionCheck=false
+
 #Whether to prefix messages from other bridges to mattermost with the sender's nick. 
 #Useful if username overrides for incoming webhooks isn't enabled on the 
 #mattermost server. If you set PrefixMessagesWithNick to true, each message 
@@ -1547,6 +1553,7 @@ enable=true
     # discord    - channel (without the #)
     #            - ID:123456789 (where 123456789 is the channel ID)
     #               (https://github.com/42wim/matterbridge/issues/57)
+    #            - category/channel (without the #) if you're using discord categories to group your channels
     # telegram   - chatid (a large negative number, eg -123456789)
     #             see (https://www.linkedin.com/pulse/telegram-bots-beginners-marco-frau)
     # hipchat    - id_channel (see https://www.hipchat.com/account/xmpp for the correct channel)

matterclient/helpers.go

@@ -186,15 +186,19 @@ func (m *MMClient) serverAlive(firstConnection bool, b *backoff.Backoff) error {
 		if resp.Error != nil {
 			return fmt.Errorf("%#v", resp.Error.Error())
 		}
-		if firstConnection && !supportedVersion(resp.ServerVersion) {
+		if firstConnection && !m.SkipVersionCheck && !supportedVersion(resp.ServerVersion) {
 			return fmt.Errorf("unsupported mattermost version: %s", resp.ServerVersion)
 		}
-		m.ServerVersion = resp.ServerVersion
-		if m.ServerVersion == "" {
-			m.logger.Debugf("Server not up yet, reconnecting in %s", d)
-			time.Sleep(d)
+		if !m.SkipVersionCheck {
+			m.ServerVersion = resp.ServerVersion
+			if m.ServerVersion == "" {
+				m.logger.Debugf("Server not up yet, reconnecting in %s", d)
+				time.Sleep(d)
+			} else {
+				m.logger.Infof("Found version %s", m.ServerVersion)
+				return nil
+			}
 		} else {
-			m.logger.Infof("Found version %s", m.ServerVersion)
 			return nil
 		}
 	}

matterclient/matterclient.go

@@ -16,14 +16,15 @@ import (
 )
 
 type Credentials struct {
-	Login         string
-	Team          string
-	Pass          string
-	Token         string
-	CookieToken   bool
-	Server        string
-	NoTLS         bool
-	SkipTLSVerify bool
+	Login            string
+	Team             string
+	Pass             string
+	Token            string
+	CookieToken      bool
+	Server           string
+	NoTLS            bool
+	SkipTLSVerify    bool
+	SkipVersionCheck bool
 }
 
 type Message struct {

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

@@ -7,6 +7,7 @@
 [![GoDoc](https://godoc.org/github.com/d5/tengo?status.svg)](https://godoc.org/github.com/d5/tengo/script)
 [![Go Report Card](https://goreportcard.com/badge/github.com/d5/tengo)](https://goreportcard.com/report/github.com/d5/tengo)
 [![Build Status](https://travis-ci.org/d5/tengo.svg?branch=master)](https://travis-ci.org/d5/tengo)
+[![Sourcegraph](https://sourcegraph.com/github.com/d5/tengo/-/badge.svg)](https://sourcegraph.com/github.com/d5/tengo?badge)
 
 **Tengo is a small, dynamic, fast, secure script language for Go.** 
 

vendor/github.com/d5/tengo/compiler/ast/ident_list.go

@@ -8,9 +8,10 @@ import (
 
 // IdentList represents a list of identifiers.
 type IdentList struct {
-	LParen source.Pos
-	List   []*Ident
-	RParen source.Pos
+	LParen  source.Pos
+	VarArgs bool
+	List    []*Ident
+	RParen  source.Pos
 }
 
 // Pos returns the position of first character belonging to the node.
@@ -50,8 +51,12 @@ func (n *IdentList) NumFields() int {
 
 func (n *IdentList) String() string {
 	var list []string
-	for _, e := range n.List {
-		list = append(list, e.String())
+	for i, e := range n.List {
+		if n.VarArgs && i == len(n.List)-1 {
+			list = append(list, "..."+e.String())
+		} else {
+			list = append(list, e.String())
+		}
 	}
 
 	return "(" + strings.Join(list, ", ") + ")"

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

@@ -477,6 +477,7 @@ func (c *Compiler) Compile(node ast.Node) error {
 			Instructions:  instructions,
 			NumLocals:     numLocals,
 			NumParameters: len(node.Type.Params.List),
+			VarArgs:       node.Type.Params.VarArgs,
 			SourceMap:     sourceMap,
 		}
 

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

@@ -13,7 +13,7 @@ func MakeInstruction(opcode Opcode, operands ...int) []byte {
 		totalLen += w
 	}
 
-	instruction := make([]byte, totalLen, totalLen)
+	instruction := make([]byte, totalLen)
 	instruction[0] = byte(opcode)
 
 	offset := 1

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

@@ -610,19 +610,31 @@ func (p *Parser) parseIdentList() *ast.IdentList {
 
 	var params []*ast.Ident
 	lparen := p.expect(token.LParen)
+	isVarArgs := false
 	if p.token != token.RParen {
-		params = append(params, p.parseIdent())
-		for p.token == token.Comma {
+		if p.token == token.Ellipsis {
+			isVarArgs = true
 			p.next()
+		}
+
+		params = append(params, p.parseIdent())
+		for !isVarArgs && p.token == token.Comma {
+			p.next()
+			if p.token == token.Ellipsis {
+				isVarArgs = true
+				p.next()
+			}
 			params = append(params, p.parseIdent())
 		}
 	}
+
 	rparen := p.expect(token.RParen)
 
 	return &ast.IdentList{
-		LParen: lparen,
-		RParen: rparen,
-		List:   params,
+		LParen:  lparen,
+		RParen:  rparen,
+		VarArgs: isVarArgs,
+		List:    params,
 	}
 }
 

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

@@ -6,7 +6,7 @@ type SymbolScope string
 // List of symbol scopes
 const (
 	ScopeGlobal  SymbolScope = "GLOBAL"
-	ScopeLocal               = "LOCAL"
-	ScopeBuiltin             = "BUILTIN"
-	ScopeFree                = "FREE"
+	ScopeLocal   SymbolScope = "LOCAL"
+	ScopeBuiltin SymbolScope = "BUILTIN"
+	ScopeFree    SymbolScope = "FREE"
 )

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

@@ -0,0 +1,27 @@
+package objects
+
+func builtinFormat(args ...Object) (Object, error) {
+	numArgs := len(args)
+	if numArgs == 0 {
+		return nil, ErrWrongNumArguments
+	}
+
+	format, ok := args[0].(*String)
+	if !ok {
+		return nil, ErrInvalidArgumentType{
+			Name:     "format",
+			Expected: "string",
+			Found:    args[0].TypeName(),
+		}
+	}
+	if numArgs == 1 {
+		return format, nil // okay to return 'format' directly as String is immutable
+	}
+
+	s, err := Format(format.Value, args[1:]...)
+	if err != nil {
+		return nil, err
+	}
+
+	return &String{Value: s}, nil
+}

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

@@ -111,4 +111,8 @@ var Builtins = []*BuiltinFunction{
 		Name:  "type_name",
 		Value: builtinTypeName,
 	},
+	{
+		Name:  "format",
+		Value: builtinFormat,
+	},
 }

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

@@ -57,7 +57,7 @@ func (o *Bytes) Equals(x Object) bool {
 		return false
 	}
 
-	return bytes.Compare(o.Value, t.Value) == 0
+	return bytes.Equal(o.Value, t.Value)
 }
 
 // IndexGet returns an element (as Int) at a given index.

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

@@ -10,6 +10,7 @@ type CompiledFunction struct {
 	Instructions  []byte
 	NumLocals     int // number of local variables (including function parameters)
 	NumParameters int
+	VarArgs       bool
 	SourceMap     map[int]source.Pos
 }
 
@@ -34,6 +35,7 @@ func (o *CompiledFunction) Copy() Object {
 		Instructions:  append([]byte{}, o.Instructions...),
 		NumLocals:     o.NumLocals,
 		NumParameters: o.NumParameters,
+		VarArgs:       o.VarArgs,
 	}
 }
 

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

@@ -254,7 +254,7 @@ func FromInterface(v interface{}) (Object, error) {
 	case []Object:
 		return &Array{Value: v}, nil
 	case []interface{}:
-		arr := make([]Object, len(v), len(v))
+		arr := make([]Object, len(v))
 		for i, e := range v {
 			vo, err := FromInterface(e)
 			if err != nil {

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

@@ -76,13 +76,13 @@ func (o *Map) Equals(x Object) bool {
 
 // IndexGet returns the value for the given key.
 func (o *Map) IndexGet(index Object) (res Object, err error) {
-	strIdx, ok := index.(*String)
+	strIdx, ok := ToString(index)
 	if !ok {
 		err = ErrInvalidIndexType
 		return
 	}
 
-	val, ok := o.Value[strIdx.Value]
+	val, ok := o.Value[strIdx]
 	if !ok {
 		val = UndefinedValue
 	}

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

@@ -40,3 +40,23 @@ func (o *Undefined) Equals(x Object) bool {
 func (o *Undefined) IndexGet(index Object) (Object, error) {
 	return UndefinedValue, nil
 }
+
+// Iterate creates a map iterator.
+func (o *Undefined) Iterate() Iterator {
+	return o
+}
+
+// Next returns true if there are more elements to iterate.
+func (o *Undefined) Next() bool {
+	return false
+}
+
+// Key returns the key or index value of the current element.
+func (o *Undefined) Key() Object {
+	return o
+}
+
+// Value returns the value of the current element.
+func (o *Undefined) Value() Object {
+	return o
+}

vendor/github.com/d5/tengo/runtime/vm.go

@@ -642,9 +642,31 @@ func (v *VM) run() {
 
 			switch callee := value.(type) {
 			case *objects.Closure:
+				if callee.Fn.VarArgs {
+					// if the closure is variadic,
+					// roll up all variadic parameters into an array
+					realArgs := callee.Fn.NumParameters - 1
+					varArgs := numArgs - realArgs
+					if varArgs >= 0 {
+						numArgs = realArgs + 1
+						args := make([]objects.Object, varArgs)
+						spStart := v.sp - varArgs
+						for i := spStart; i < v.sp; i++ {
+							args[i-spStart] = v.stack[i]
+						}
+						v.stack[spStart] = &objects.Array{Value: args}
+						v.sp = spStart + 1
+					}
+				}
+
 				if numArgs != callee.Fn.NumParameters {
-					v.err = fmt.Errorf("wrong number of arguments: want=%d, got=%d",
-						callee.Fn.NumParameters, numArgs)
+					if callee.Fn.VarArgs {
+						v.err = fmt.Errorf("wrong number of arguments: want>=%d, got=%d",
+							callee.Fn.NumParameters-1, numArgs)
+					} else {
+						v.err = fmt.Errorf("wrong number of arguments: want=%d, got=%d",
+							callee.Fn.NumParameters, numArgs)
+					}
 					return
 				}
 
@@ -674,9 +696,31 @@ func (v *VM) run() {
 				v.sp = v.sp - numArgs + callee.Fn.NumLocals
 
 			case *objects.CompiledFunction:
+				if callee.VarArgs {
+					// if the closure is variadic,
+					// roll up all variadic parameters into an array
+					realArgs := callee.NumParameters - 1
+					varArgs := numArgs - realArgs
+					if varArgs >= 0 {
+						numArgs = realArgs + 1
+						args := make([]objects.Object, varArgs)
+						spStart := v.sp - varArgs
+						for i := spStart; i < v.sp; i++ {
+							args[i-spStart] = v.stack[i]
+						}
+						v.stack[spStart] = &objects.Array{Value: args}
+						v.sp = spStart + 1
+					}
+				}
+
 				if numArgs != callee.NumParameters {
-					v.err = fmt.Errorf("wrong number of arguments: want=%d, got=%d",
-						callee.NumParameters, numArgs)
+					if callee.VarArgs {
+						v.err = fmt.Errorf("wrong number of arguments: want>=%d, got=%d",
+							callee.NumParameters-1, numArgs)
+					} else {
+						v.err = fmt.Errorf("wrong number of arguments: want=%d, got=%d",
+							callee.NumParameters, numArgs)
+					}
 					return
 				}
 
@@ -707,9 +751,7 @@ func (v *VM) run() {
 
 			case objects.Callable:
 				var args []objects.Object
-				for _, arg := range v.stack[v.sp-numArgs : v.sp] {
-					args = append(args, arg)
-				}
+				args = append(args, v.stack[v.sp-numArgs:v.sp]...)
 
 				ret, e := callee.Call(args...)
 				v.sp -= numArgs + 1
@@ -817,9 +859,12 @@ func (v *VM) run() {
 			val := v.stack[v.sp-numSelectors-1]
 			v.sp -= numSelectors + 1
 
-			sp := v.curFrame.basePointer + localIndex
+			dst := v.stack[v.curFrame.basePointer+localIndex]
+			if obj, ok := dst.(*objects.ObjectPtr); ok {
+				dst = *obj.Value
+			}
 
-			if e := indexAssign(v.stack[sp], val, selectors); e != nil {
+			if e := indexAssign(dst, val, selectors); e != nil {
 				v.err = e
 				return
 			}

vendor/github.com/d5/tengo/script/script.go

@@ -183,12 +183,3 @@ func (s *Script) prepCompile() (symbolTable *compiler.SymbolTable, globals []obj
 
 	return
 }
-
-func (s *Script) copyVariables() map[string]*Variable {
-	vars := make(map[string]*Variable)
-	for n, v := range s.variables {
-		vars[n] = v
-	}
-
-	return vars
-}

vendor/github.com/d5/tengo/stdlib/fmt.go

@@ -44,12 +44,12 @@ func fmtPrintf(args ...objects.Object) (ret objects.Object, err error) {
 		return nil, nil
 	}
 
-	formatArgs := make([]interface{}, numArgs-1, numArgs-1)
-	for idx, arg := range args[1:] {
-		formatArgs[idx] = objects.ToInterface(arg)
+	s, err := objects.Format(format.Value, args[1:]...)
+	if err != nil {
+		return nil, err
 	}
 
-	fmt.Printf(format.Value, formatArgs...)
+	fmt.Print(s)
 
 	return nil, nil
 }
@@ -84,15 +84,9 @@ func fmtSprintf(args ...objects.Object) (ret objects.Object, err error) {
 		return format, nil // okay to return 'format' directly as String is immutable
 	}
 
-	formatArgs := make([]interface{}, numArgs-1, numArgs-1)
-	for idx, arg := range args[1:] {
-		formatArgs[idx] = objects.ToInterface(arg)
-	}
-
-	s := fmt.Sprintf(format.Value, formatArgs...)
-
-	if len(s) > tengo.MaxStringLen {
-		return nil, objects.ErrStringLimit
+	s, err := objects.Format(format.Value, args[1:]...)
+	if err != nil {
+		return nil, err
 	}
 
 	return &objects.String{Value: s}, nil

vendor/github.com/d5/tengo/stdlib/text.go

@@ -32,6 +32,7 @@ var textModule = map[string]objects.Object{
 	"last_index_any": &objects.UserFunction{Name: "last_index_any", Value: FuncASSRI(strings.LastIndexAny)}, // last_index_any(s, chars) => int
 	"repeat":         &objects.UserFunction{Name: "repeat", Value: textRepeat},                              // repeat(s, count) => string
 	"replace":        &objects.UserFunction{Name: "replace", Value: textReplace},                            // replace(s, old, new, n) => string
+	"substr":         &objects.UserFunction{Name: "substr", Value: textSubstring},                           // substr(s, lower, upper) => string
 	"split":          &objects.UserFunction{Name: "split", Value: FuncASSRSs(strings.Split)},                // split(s, sep) => [string]
 	"split_after":    &objects.UserFunction{Name: "split_after", Value: FuncASSRSs(strings.SplitAfter)},     // split_after(s, sep) => [string]
 	"split_after_n":  &objects.UserFunction{Name: "split_after_n", Value: FuncASSIRSs(strings.SplitAfterN)}, // split_after_n(s, sep, n) => [string]
@@ -40,6 +41,9 @@ var textModule = map[string]objects.Object{
 	"to_lower":       &objects.UserFunction{Name: "to_lower", Value: FuncASRS(strings.ToLower)},             // to_lower(s) => string
 	"to_title":       &objects.UserFunction{Name: "to_title", Value: FuncASRS(strings.ToTitle)},             // to_title(s) => string
 	"to_upper":       &objects.UserFunction{Name: "to_upper", Value: FuncASRS(strings.ToUpper)},             // to_upper(s) => string
+	"pad_left":       &objects.UserFunction{Name: "pad_left", Value: textPadLeft},                           // pad_left(s, pad_len, pad_with) => string
+	"pad_right":      &objects.UserFunction{Name: "pad_right", Value: textPadRight},                         // pad_right(s, pad_len, pad_with) => string
+	"trim":           &objects.UserFunction{Name: "trim", Value: FuncASSRS(strings.Trim)},                   // trim(s, cutset) => string
 	"trim_left":      &objects.UserFunction{Name: "trim_left", Value: FuncASSRS(strings.TrimLeft)},          // trim_left(s, cutset) => string
 	"trim_prefix":    &objects.UserFunction{Name: "trim_prefix", Value: FuncASSRS(strings.TrimPrefix)},      // trim_prefix(s, prefix) => string
 	"trim_right":     &objects.UserFunction{Name: "trim_right", Value: FuncASSRS(strings.TrimRight)},        // trim_right(s, cutset) => string
@@ -376,6 +380,195 @@ func textReplace(args ...objects.Object) (ret objects.Object, err error) {
 	return
 }
 
+func textSubstring(args ...objects.Object) (ret objects.Object, err error) {
+	argslen := len(args)
+	if argslen != 2 && argslen != 3 {
+		err = objects.ErrWrongNumArguments
+		return
+	}
+
+	s1, ok := objects.ToString(args[0])
+	if !ok {
+		err = objects.ErrInvalidArgumentType{
+			Name:     "first",
+			Expected: "string(compatible)",
+			Found:    args[0].TypeName(),
+		}
+		return
+	}
+
+	i2, ok := objects.ToInt(args[1])
+	if !ok {
+		err = objects.ErrInvalidArgumentType{
+			Name:     "second",
+			Expected: "int(compatible)",
+			Found:    args[1].TypeName(),
+		}
+		return
+	}
+
+	strlen := len(s1)
+	i3 := strlen
+	if argslen == 3 {
+		i3, ok = objects.ToInt(args[2])
+		if !ok {
+			err = objects.ErrInvalidArgumentType{
+				Name:     "third",
+				Expected: "int(compatible)",
+				Found:    args[2].TypeName(),
+			}
+			return
+		}
+	}
+
+	if i2 > i3 {
+		err = objects.ErrInvalidIndexType
+		return
+	}
+
+	if i2 < 0 {
+		i2 = 0
+	} else if i2 > strlen {
+		i2 = strlen
+	}
+
+	if i3 < 0 {
+		i3 = 0
+	} else if i3 > strlen {
+		i3 = strlen
+	}
+
+	ret = &objects.String{Value: s1[i2:i3]}
+
+	return
+}
+
+func textPadLeft(args ...objects.Object) (ret objects.Object, err error) {
+	argslen := len(args)
+	if argslen != 2 && argslen != 3 {
+		err = objects.ErrWrongNumArguments
+		return
+	}
+
+	s1, ok := objects.ToString(args[0])
+	if !ok {
+		err = objects.ErrInvalidArgumentType{
+			Name:     "first",
+			Expected: "string(compatible)",
+			Found:    args[0].TypeName(),
+		}
+		return
+	}
+
+	i2, ok := objects.ToInt(args[1])
+	if !ok {
+		err = objects.ErrInvalidArgumentType{
+			Name:     "second",
+			Expected: "int(compatible)",
+			Found:    args[1].TypeName(),
+		}
+		return
+	}
+
+	if i2 > tengo.MaxStringLen {
+		return nil, objects.ErrStringLimit
+	}
+
+	sLen := len(s1)
+	if sLen >= i2 {
+		ret = &objects.String{Value: s1}
+		return
+	}
+
+	s3 := " "
+	if argslen == 3 {
+		s3, ok = objects.ToString(args[2])
+		if !ok {
+			err = objects.ErrInvalidArgumentType{
+				Name:     "third",
+				Expected: "string(compatible)",
+				Found:    args[2].TypeName(),
+			}
+			return
+		}
+	}
+
+	padStrLen := len(s3)
+	if padStrLen == 0 {
+		ret = &objects.String{Value: s1}
+		return
+	}
+
+	padCount := ((i2 - padStrLen) / padStrLen) + 1
+	retStr := strings.Repeat(s3, int(padCount)) + s1
+	ret = &objects.String{Value: retStr[len(retStr)-i2:]}
+
+	return
+}
+
+func textPadRight(args ...objects.Object) (ret objects.Object, err error) {
+	argslen := len(args)
+	if argslen != 2 && argslen != 3 {
+		err = objects.ErrWrongNumArguments
+		return
+	}
+
+	s1, ok := objects.ToString(args[0])
+	if !ok {
+		err = objects.ErrInvalidArgumentType{
+			Name:     "first",
+			Expected: "string(compatible)",
+			Found:    args[0].TypeName(),
+		}
+		return
+	}
+
+	i2, ok := objects.ToInt(args[1])
+	if !ok {
+		err = objects.ErrInvalidArgumentType{
+			Name:     "second",
+			Expected: "int(compatible)",
+			Found:    args[1].TypeName(),
+		}
+		return
+	}
+
+	if i2 > tengo.MaxStringLen {
+		return nil, objects.ErrStringLimit
+	}
+
+	sLen := len(s1)
+	if sLen >= i2 {
+		ret = &objects.String{Value: s1}
+		return
+	}
+
+	s3 := " "
+	if argslen == 3 {
+		s3, ok = objects.ToString(args[2])
+		if !ok {
+			err = objects.ErrInvalidArgumentType{
+				Name:     "third",
+				Expected: "string(compatible)",
+				Found:    args[2].TypeName(),
+			}
+			return
+		}
+	}
+
+	padStrLen := len(s3)
+	if padStrLen == 0 {
+		ret = &objects.String{Value: s1}
+		return
+	}
+
+	padCount := ((i2 - padStrLen) / padStrLen) + 1
+	retStr := s1 + strings.Repeat(s3, int(padCount))
+	ret = &objects.String{Value: retStr[:i2]}
+
+	return
+}
+
 func textRepeat(args ...objects.Object) (ret objects.Object, err error) {
 	if len(args) != 2 {
 		return nil, objects.ErrWrongNumArguments

vendor/github.com/gorilla/schema/README.md

@@ -11,7 +11,7 @@ Package gorilla/schema converts structs to and from form values.
 Here's a quick example: we parse POST form values and then decode them into a struct:
 
 ```go
-// Set a Decoder instance as a package global, because it caches 
+// Set a Decoder instance as a package global, because it caches
 // meta-data about structs, and an instance can be shared safely.
 var decoder = schema.NewDecoder()
 
@@ -27,9 +27,9 @@ func MyHandler(w http.ResponseWriter, r *http.Request) {
     }
 
     var person Person
-    
+
     // r.PostForm is a map of our POST form values
-    err := decoder.Decode(&person, r.PostForm)
+    err = decoder.Decode(&person, r.PostForm)
     if err != nil {
         // Handle error
     }
@@ -64,9 +64,9 @@ To define custom names for fields, use a struct tag "schema". To not populate ce
 
 ```go
 type Person struct {
-    Name  string `schema:"name"`  // custom name
-    Phone string `schema:"phone"` // custom name
-    Admin bool   `schema:"-"`     // this field is never set
+    Name  string `schema:"name,required"`  // custom name, must be supplied
+    Phone string `schema:"phone"`          // custom name
+    Admin bool   `schema:"-"`              // this field is never set
 }
 ```
 
@@ -83,8 +83,8 @@ The supported field types in the struct are:
 
 Unsupported types are simply ignored, however custom types can be registered to be converted.
 
-More examples are available on the Gorilla website: http://www.gorillatoolkit.org/pkg/schema
+More examples are available on the Gorilla website: https://www.gorillatoolkit.org/pkg/schema
 
-## License 
+## License
 
 BSD licensed. See the LICENSE file for details.

vendor/github.com/gorilla/schema/cache.go

@@ -117,7 +117,7 @@ func (c *cache) get(t reflect.Type) *structInfo {
 	info := c.m[t]
 	c.l.RUnlock()
 	if info == nil {
-		info = c.create(t, nil)
+		info = c.create(t, "")
 		c.l.Lock()
 		c.m[t] = info
 		c.l.Unlock()
@@ -126,37 +126,40 @@ func (c *cache) get(t reflect.Type) *structInfo {
 }
 
 // create creates a structInfo with meta-data about a struct.
-func (c *cache) create(t reflect.Type, info *structInfo) *structInfo {
-	if info == nil {
-		info = &structInfo{fields: []*fieldInfo{}}
-	}
+func (c *cache) create(t reflect.Type, parentAlias string) *structInfo {
+	info := &structInfo{}
+	var anonymousInfos []*structInfo
 	for i := 0; i < t.NumField(); i++ {
-		field := t.Field(i)
-		if field.Anonymous {
-			ft := field.Type
-			if ft.Kind() == reflect.Ptr {
-				ft = ft.Elem()
-			}
-			if ft.Kind() == reflect.Struct {
-				bef := len(info.fields)
-				c.create(ft, info)
-				for _, fi := range info.fields[bef:len(info.fields)] {
-					// exclude required check because duplicated to embedded field
-					fi.isRequired = false
-				}
+		if f := c.createField(t.Field(i), parentAlias); f != nil {
+			info.fields = append(info.fields, f)
+			if ft := indirectType(f.typ); ft.Kind() == reflect.Struct && f.isAnonymous {
+				anonymousInfos = append(anonymousInfos, c.create(ft, f.canonicalAlias))
+			}
+		}
+	}
+	for i, a := range anonymousInfos {
+		others := []*structInfo{info}
+		others = append(others, anonymousInfos[:i]...)
+		others = append(others, anonymousInfos[i+1:]...)
+		for _, f := range a.fields {
+			if !containsAlias(others, f.alias) {
+				info.fields = append(info.fields, f)
 			}
 		}
-		c.createField(field, info)
 	}
 	return info
 }
 
 // createField creates a fieldInfo for the given field.
-func (c *cache) createField(field reflect.StructField, info *structInfo) {
+func (c *cache) createField(field reflect.StructField, parentAlias string) *fieldInfo {
 	alias, options := fieldAlias(field, c.tag)
 	if alias == "-" {
 		// Ignore this field.
-		return
+		return nil
+	}
+	canonicalAlias := alias
+	if parentAlias != "" {
+		canonicalAlias = parentAlias + "." + alias
 	}
 	// Check if the type is supported and don't cache it if not.
 	// First let's get the basic type.
@@ -181,19 +184,20 @@ func (c *cache) createField(field reflect.StructField, info *structInfo) {
 	if isStruct = ft.Kind() == reflect.Struct; !isStruct {
 		if c.converter(ft) == nil && builtinConverters[ft.Kind()] == nil {
 			// Type is not supported.
-			return
+			return nil
 		}
 	}
 
-	info.fields = append(info.fields, &fieldInfo{
+	return &fieldInfo{
 		typ:              field.Type,
 		name:             field.Name,
 		alias:            alias,
+		canonicalAlias:   canonicalAlias,
 		unmarshalerInfo:  m,
 		isSliceOfStructs: isSlice && isStruct,
 		isAnonymous:      field.Anonymous,
 		isRequired:       options.Contains("required"),
-	})
+	}
 }
 
 // converter returns the converter for a type.
@@ -216,11 +220,26 @@ func (i *structInfo) get(alias string) *fieldInfo {
 	return nil
 }
 
+func containsAlias(infos []*structInfo, alias string) bool {
+	for _, info := range infos {
+		if info.get(alias) != nil {
+			return true
+		}
+	}
+	return false
+}
+
 type fieldInfo struct {
 	typ reflect.Type
 	// name is the field name in the struct.
 	name  string
 	alias string
+	// canonicalAlias is almost the same as the alias, but is prefixed with
+	// an embedded struct field alias in dotted notation if this field is
+	// promoted from the struct.
+	// For instance, if the alias is "N" and this field is an embedded field
+	// in a struct "X", canonicalAlias will be "X.N".
+	canonicalAlias string
 	// unmarshalerInfo contains information regarding the
 	// encoding.TextUnmarshaler implementation of the field type.
 	unmarshalerInfo unmarshaler
@@ -231,6 +250,13 @@ type fieldInfo struct {
 	isRequired  bool
 }
 
+func (f *fieldInfo) paths(prefix string) []string {
+	if f.alias == f.canonicalAlias {
+		return []string{prefix + f.alias}
+	}
+	return []string{prefix + f.alias, prefix + f.canonicalAlias}
+}
+
 type pathPart struct {
 	field *fieldInfo
 	path  []string // path to the field: walks structs using field names.
@@ -239,6 +265,13 @@ type pathPart struct {
 
 // ----------------------------------------------------------------------------
 
+func indirectType(typ reflect.Type) reflect.Type {
+	if typ.Kind() == reflect.Ptr {
+		return typ.Elem()
+	}
+	return typ
+}
+
 // fieldAlias parses a field tag to get a field alias.
 func fieldAlias(field reflect.StructField, tagName string) (alias string, options tagOptions) {
 	if tag := field.Tag.Get(tagName); tag != "" {

vendor/github.com/gorilla/schema/decoder.go

@@ -81,52 +81,83 @@ func (d *Decoder) Decode(dst interface{}, src map[string][]string) error {
 				errors[path] = err
 			}
 		} else if !d.ignoreUnknownKeys {
-			errors[path] = fmt.Errorf("schema: invalid path %q", path)
+			errors[path] = UnknownKeyError{Key: path}
 		}
 	}
+	errors.merge(d.checkRequired(t, src))
 	if len(errors) > 0 {
 		return errors
 	}
-	return d.checkRequired(t, src, "")
+	return nil
 }
 
 // checkRequired checks whether required fields are empty
 //
-// check type t recursively if t has struct fields, and prefix is same as parsePath: in dotted notation
+// check type t recursively if t has struct fields.
 //
 // src is the source map for decoding, we use it here to see if those required fields are included in src
-func (d *Decoder) checkRequired(t reflect.Type, src map[string][]string, prefix string) error {
+func (d *Decoder) checkRequired(t reflect.Type, src map[string][]string) MultiError {
+	m, errs := d.findRequiredFields(t, "", "")
+	for key, fields := range m {
+		if isEmptyFields(fields, src) {
+			errs[key] = EmptyFieldError{Key: key}
+		}
+	}
+	return errs
+}
+
+// findRequiredFields recursively searches the struct type t for required fields.
+//
+// canonicalPrefix and searchPrefix are used to resolve full paths in dotted notation
+// for nested struct fields. canonicalPrefix is a complete path which never omits
+// any embedded struct fields. searchPrefix is a user-friendly path which may omit
+// some embedded struct fields to point promoted fields.
+func (d *Decoder) findRequiredFields(t reflect.Type, canonicalPrefix, searchPrefix string) (map[string][]fieldWithPrefix, MultiError) {
 	struc := d.cache.get(t)
 	if struc == nil {
 		// unexpect, cache.get never return nil
-		return errors.New("cache fail")
+		return nil, MultiError{canonicalPrefix + "*": errors.New("cache fail")}
 	}
 
+	m := map[string][]fieldWithPrefix{}
+	errs := MultiError{}
 	for _, f := range struc.fields {
 		if f.typ.Kind() == reflect.Struct {
-			err := d.checkRequired(f.typ, src, prefix+f.alias+".")
-			if err != nil {
-				if !f.isAnonymous {
-					return err
-				}
-				// check embedded parent field.
-				err2 := d.checkRequired(f.typ, src, prefix)
-				if err2 != nil {
-					return err
+			fcprefix := canonicalPrefix + f.canonicalAlias + "."
+			for _, fspath := range f.paths(searchPrefix) {
+				fm, ferrs := d.findRequiredFields(f.typ, fcprefix, fspath+".")
+				for key, fields := range fm {
+					m[key] = append(m[key], fields...)
 				}
+				errs.merge(ferrs)
 			}
 		}
 		if f.isRequired {
-			key := f.alias
-			if prefix != "" {
-				key = prefix + key
-			}
-			if isEmpty(f.typ, src[key]) {
-				return fmt.Errorf("%v is empty", key)
+			key := canonicalPrefix + f.canonicalAlias
+			m[key] = append(m[key], fieldWithPrefix{
+				fieldInfo: f,
+				prefix:    searchPrefix,
+			})
+		}
+	}
+	return m, errs
+}
+
+type fieldWithPrefix struct {
+	*fieldInfo
+	prefix string
+}
+
+// isEmptyFields returns true if all of specified fields are empty.
+func isEmptyFields(fields []fieldWithPrefix, src map[string][]string) bool {
+	for _, f := range fields {
+		for _, path := range f.paths(f.prefix) {
+			if !isEmpty(f.typ, src[path]) {
+				return false
 			}
 		}
 	}
-	return nil
+	return true
 }
 
 // isEmpty returns true if value is empty for specific type
@@ -424,6 +455,24 @@ func (e ConversionError) Error() string {
 	return output
 }
 
+// UnknownKeyError stores information about an unknown key in the source map.
+type UnknownKeyError struct {
+	Key string // key from the source map.
+}
+
+func (e UnknownKeyError) Error() string {
+	return fmt.Sprintf("schema: invalid path %q", e.Key)
+}
+
+// EmptyFieldError stores information about an empty required field.
+type EmptyFieldError struct {
+	Key string // required key in the source map.
+}
+
+func (e EmptyFieldError) Error() string {
+	return fmt.Sprintf("%v is empty", e.Key)
+}
+
 // MultiError stores multiple decoding errors.
 //
 // Borrowed from the App Engine SDK.
@@ -445,3 +494,11 @@ func (e MultiError) Error() string {
 	}
 	return fmt.Sprintf("%s (and %d other errors)", s, len(e)-1)
 }
+
+func (e MultiError) merge(errors MultiError) {
+	for key, err := range errors {
+		if e[key] == nil {
+			e[key] = err
+		}
+	}
+}

vendor/github.com/hashicorp/golang-lru/lru.go

@@ -40,31 +40,35 @@ func (c *Cache) Purge() {
 // Add adds a value to the cache.  Returns true if an eviction occurred.
 func (c *Cache) Add(key, value interface{}) (evicted bool) {
 	c.lock.Lock()
-	defer c.lock.Unlock()
-	return c.lru.Add(key, value)
+	evicted = c.lru.Add(key, value)
+	c.lock.Unlock()
+	return evicted
 }
 
 // Get looks up a key's value from the cache.
 func (c *Cache) Get(key interface{}) (value interface{}, ok bool) {
 	c.lock.Lock()
-	defer c.lock.Unlock()
-	return c.lru.Get(key)
+	value, ok = c.lru.Get(key)
+	c.lock.Unlock()
+	return value, ok
 }
 
 // Contains checks if a key is in the cache, without updating the
 // recent-ness or deleting it for being stale.
 func (c *Cache) Contains(key interface{}) bool {
 	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.lru.Contains(key)
+	containKey := c.lru.Contains(key)
+	c.lock.RUnlock()
+	return containKey
 }
 
 // Peek returns the key value (or undefined if not found) without updating
 // the "recently used"-ness of the key.
 func (c *Cache) Peek(key interface{}) (value interface{}, ok bool) {
 	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.lru.Peek(key)
+	value, ok = c.lru.Peek(key)
+	c.lock.RUnlock()
+	return value, ok
 }
 
 // ContainsOrAdd checks if a key is in the cache  without updating the
@@ -98,13 +102,15 @@ func (c *Cache) RemoveOldest() {
 // Keys returns a slice of the keys in the cache, from oldest to newest.
 func (c *Cache) Keys() []interface{} {
 	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.lru.Keys()
+	keys := c.lru.Keys()
+	c.lock.RUnlock()
+	return keys
 }
 
 // Len returns the number of items in the cache.
 func (c *Cache) Len() int {
 	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.lru.Len()
+	length := c.lru.Len()
+	c.lock.RUnlock()
+	return length
 }

vendor/github.com/labstack/echo/v4/.travis.yml

@@ -1,6 +1,7 @@
 language: go
 go:
   - 1.11.x
+  - 1.12.x
   - tip
 env:
   - GO111MODULE=on

vendor/github.com/labstack/echo/v4/README.md

@@ -56,30 +56,29 @@ Lower is better!
 package main
 
 import (
-	"net/http"
-
-	"github.com/labstack/echo/v4"
-	"github.com/labstack/echo/v4/middleware"
+  "net/http"
+  "github.com/labstack/echo/v4"
+  "github.com/labstack/echo/v4/middleware"
 )
 
 func main() {
-	// Echo instance
-	e := echo.New()
+  // Echo instance
+  e := echo.New()
 
-	// Middleware
-	e.Use(middleware.Logger())
-	e.Use(middleware.Recover())
+  // Middleware
+  e.Use(middleware.Logger())
+  e.Use(middleware.Recover())
 
-	// Routes
-	e.GET("/", hello)
+  // Routes
+  e.GET("/", hello)
 
-	// Start server
-	e.Logger.Fatal(e.Start(":1323"))
+  // Start server
+  e.Logger.Fatal(e.Start(":1323"))
 }
 
 // Handler
 func hello(c echo.Context) error {
-	return c.String(http.StatusOK, "Hello, World!")
+  return c.String(http.StatusOK, "Hello, World!")
 }
 ```
 

vendor/github.com/labstack/echo/v4/bind.go

@@ -1,6 +1,7 @@
 package echo
 
 import (
+	"encoding"
 	"encoding/json"
 	"encoding/xml"
 	"errors"
@@ -21,6 +22,8 @@ type (
 	DefaultBinder struct{}
 
 	// BindUnmarshaler is the interface used to wrap the UnmarshalParam method.
+	// Types that don't implement this, but do implement encoding.TextUnmarshaler
+	// will use that interface instead.
 	BindUnmarshaler interface {
 		// UnmarshalParam decodes and assigns a value from an form or query param.
 		UnmarshalParam(param string) error
@@ -211,12 +214,30 @@ func bindUnmarshaler(field reflect.Value) (BindUnmarshaler, bool) {
 	return nil, false
 }
 
+// textUnmarshaler attempts to unmarshal a reflect.Value into a TextUnmarshaler
+func textUnmarshaler(field reflect.Value) (encoding.TextUnmarshaler, bool) {
+	ptr := reflect.New(field.Type())
+	if ptr.CanInterface() {
+		iface := ptr.Interface()
+		if unmarshaler, ok := iface.(encoding.TextUnmarshaler); ok {
+			return unmarshaler, ok
+		}
+	}
+	return nil, false
+}
+
 func unmarshalFieldNonPtr(value string, field reflect.Value) (bool, error) {
 	if unmarshaler, ok := bindUnmarshaler(field); ok {
 		err := unmarshaler.UnmarshalParam(value)
 		field.Set(reflect.ValueOf(unmarshaler).Elem())
 		return true, err
 	}
+	if unmarshaler, ok := textUnmarshaler(field); ok {
+		err := unmarshaler.UnmarshalText([]byte(value))
+		field.Set(reflect.ValueOf(unmarshaler).Elem())
+		return true, err
+	}
+
 	return false, nil
 }
 

vendor/github.com/labstack/echo/v4/context.go

@@ -13,6 +13,7 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"sync"
 )
 
 type (
@@ -198,6 +199,7 @@ type (
 		handler  HandlerFunc
 		store    Map
 		echo     *Echo
+		lock     sync.RWMutex
 	}
 )
 
@@ -232,7 +234,7 @@ func (c *context) IsTLS() bool {
 
 func (c *context) IsWebSocket() bool {
 	upgrade := c.request.Header.Get(HeaderUpgrade)
-	return upgrade == "websocket" || upgrade == "Websocket"
+	return strings.ToLower(upgrade) == "websocket"
 }
 
 func (c *context) Scheme() string {
@@ -360,10 +362,15 @@ func (c *context) Cookies() []*http.Cookie {
 }
 
 func (c *context) Get(key string) interface{} {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
 	return c.store[key]
 }
 
 func (c *context) Set(key string, val interface{}) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
 	if c.store == nil {
 		c.store = make(Map)
 	}
@@ -430,7 +437,7 @@ func (c *context) json(code int, i interface{}, indent string) error {
 		enc.SetIndent("", indent)
 	}
 	c.writeContentType(MIMEApplicationJSONCharsetUTF8)
-	c.response.WriteHeader(code)
+	c.response.Status = code
 	return enc.Encode(i)
 }
 
@@ -597,4 +604,3 @@ func (c *context) Reset(r *http.Request, w http.ResponseWriter) {
 	// NOTE: Don't reset because it has to have length c.echo.maxParam at all times
 	// c.pvalues = nil
 }
-

vendor/github.com/labstack/echo/v4/echo.go

@@ -43,6 +43,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"io/ioutil"
 	stdLog "log"
 	"net"
 	"net/http"
@@ -56,18 +57,21 @@ import (
 
 	"github.com/labstack/gommon/color"
 	"github.com/labstack/gommon/log"
+	"golang.org/x/crypto/acme"
 	"golang.org/x/crypto/acme/autocert"
 )
 
 type (
 	// Echo is the top-level framework instance.
 	Echo struct {
+		common
 		StdLogger        *stdLog.Logger
 		colorer          *color.Color
 		premiddleware    []MiddlewareFunc
 		middleware       []MiddlewareFunc
 		maxParam         *int
 		router           *Router
+		routers          map[string]*Router
 		notFoundHandler  HandlerFunc
 		pool             sync.Pool
 		Server           *http.Server
@@ -122,10 +126,8 @@ type (
 	// Map defines a generic map of type `map[string]interface{}`.
 	Map map[string]interface{}
 
-	// i is the interface for Echo and Group.
-	i interface {
-		GET(string, HandlerFunc, ...MiddlewareFunc) *Route
-	}
+	// Common struct for Echo & Group.
+	common struct{}
 )
 
 // HTTP methods
@@ -168,6 +170,8 @@ const (
 	charsetUTF8 = "charset=UTF-8"
 	// PROPFIND Method can be used on collection and property resources.
 	PROPFIND = "PROPFIND"
+	// REPORT Method can be used to get information about a resource, see rfc 3253
+	REPORT = "REPORT"
 )
 
 // Headers
@@ -211,17 +215,18 @@ const (
 	HeaderAccessControlMaxAge           = "Access-Control-Max-Age"
 
 	// Security
-	HeaderStrictTransportSecurity = "Strict-Transport-Security"
-	HeaderXContentTypeOptions     = "X-Content-Type-Options"
-	HeaderXXSSProtection          = "X-XSS-Protection"
-	HeaderXFrameOptions           = "X-Frame-Options"
-	HeaderContentSecurityPolicy   = "Content-Security-Policy"
-	HeaderXCSRFToken              = "X-CSRF-Token"
+	HeaderStrictTransportSecurity         = "Strict-Transport-Security"
+	HeaderXContentTypeOptions             = "X-Content-Type-Options"
+	HeaderXXSSProtection                  = "X-XSS-Protection"
+	HeaderXFrameOptions                   = "X-Frame-Options"
+	HeaderContentSecurityPolicy           = "Content-Security-Policy"
+	HeaderContentSecurityPolicyReportOnly = "Content-Security-Policy-Report-Only"
+	HeaderXCSRFToken                      = "X-CSRF-Token"
 )
 
 const (
 	// Version of Echo
-	Version = "4.0.0"
+	Version = "4.1.5"
 	website = "https://echo.labstack.com"
 	// http://patorjk.com/software/taag/#p=display&f=Small%20Slant&t=Echo
 	banner = `
@@ -248,6 +253,7 @@ var (
 		PROPFIND,
 		http.MethodPut,
 		http.MethodTrace,
+		REPORT,
 	}
 )
 
@@ -269,6 +275,7 @@ var (
 	ErrRendererNotRegistered       = errors.New("renderer not registered")
 	ErrInvalidRedirectCode         = errors.New("invalid redirect status code")
 	ErrCookieNotFound              = errors.New("cookie not found")
+	ErrInvalidCertOrKeyType        = errors.New("invalid cert or key type, must be string or []byte")
 )
 
 // Error handlers
@@ -304,6 +311,7 @@ func New() (e *Echo) {
 		return e.NewContext(nil, nil)
 	}
 	e.router = NewRouter(e)
+	e.routers = map[string]*Router{}
 	return
 }
 
@@ -319,11 +327,16 @@ func (e *Echo) NewContext(r *http.Request, w http.ResponseWriter) Context {
 	}
 }
 
-// Router returns router.
+// Router returns the default router.
 func (e *Echo) Router() *Router {
 	return e.router
 }
 
+// Routers returns the map of host => router.
+func (e *Echo) Routers() map[string]*Router {
+	return e.routers
+}
+
 // DefaultHTTPErrorHandler is the default HTTP error handler. It sends a JSON response
 // with status code.
 func (e *Echo) DefaultHTTPErrorHandler(err error, c Context) {
@@ -450,10 +463,10 @@ func (e *Echo) Static(prefix, root string) *Route {
 	if root == "" {
 		root = "." // For security we want to restrict to CWD.
 	}
-	return static(e, prefix, root)
+	return e.static(prefix, root, e.GET)
 }
 
-func static(i i, prefix, root string) *Route {
+func (common) static(prefix, root string, get func(string, HandlerFunc, ...MiddlewareFunc) *Route) *Route {
 	h := func(c Context) error {
 		p, err := url.PathUnescape(c.Param("*"))
 		if err != nil {
@@ -462,26 +475,28 @@ func static(i i, prefix, root string) *Route {
 		name := filepath.Join(root, path.Clean("/"+p)) // "/"+ for security
 		return c.File(name)
 	}
-	i.GET(prefix, h)
 	if prefix == "/" {
-		return i.GET(prefix+"*", h)
+		return get(prefix+"*", h)
 	}
-
-	return i.GET(prefix+"/*", h)
+	return get(prefix+"/*", h)
 }
 
-// File registers a new route with path to serve a static file with optional route-level middleware.
-func (e *Echo) File(path, file string, m ...MiddlewareFunc) *Route {
-	return e.GET(path, func(c Context) error {
+func (common) file(path, file string, get func(string, HandlerFunc, ...MiddlewareFunc) *Route,
+	m ...MiddlewareFunc) *Route {
+	return get(path, func(c Context) error {
 		return c.File(file)
 	}, m...)
 }
 
-// Add registers a new route for an HTTP method and path with matching handler
-// in the router with optional route-level middleware.
-func (e *Echo) Add(method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) *Route {
+// File registers a new route with path to serve a static file with optional route-level middleware.
+func (e *Echo) File(path, file string, m ...MiddlewareFunc) *Route {
+	return e.file(path, file, e.GET, m...)
+}
+
+func (e *Echo) add(host, method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) *Route {
 	name := handlerName(handler)
-	e.router.Add(method, path, func(c Context) error {
+	router := e.findRouter(host)
+	router.Add(method, path, func(c Context) error {
 		h := handler
 		// Chain middleware
 		for i := len(middleware) - 1; i >= 0; i-- {
@@ -498,6 +513,20 @@ func (e *Echo) Add(method, path string, handler HandlerFunc, middleware ...Middl
 	return r
 }
 
+// Add registers a new route for an HTTP method and path with matching handler
+// in the router with optional route-level middleware.
+func (e *Echo) Add(method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) *Route {
+	return e.add("", method, path, handler, middleware...)
+}
+
+// Host creates a new router group for the provided host and optional host-level middleware.
+func (e *Echo) Host(name string, m ...MiddlewareFunc) (g *Group) {
+	e.routers[name] = NewRouter(e)
+	g = &Group{host: name, echo: e}
+	g.Use(m...)
+	return
+}
+
 // Group creates a new router group with prefix and optional group-level middleware.
 func (e *Echo) Group(prefix string, m ...MiddlewareFunc) (g *Group) {
 	g = &Group{prefix: prefix, echo: e}
@@ -570,23 +599,17 @@ func (e *Echo) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	h := NotFoundHandler
 
 	if e.premiddleware == nil {
-		e.router.Find(r.Method, getPath(r), c)
+		e.findRouter(r.Host).Find(r.Method, getPath(r), c)
 		h = c.Handler()
-		for i := len(e.middleware) - 1; i >= 0; i-- {
-			h = e.middleware[i](h)
-		}
+		h = applyMiddleware(h, e.middleware...)
 	} else {
 		h = func(c Context) error {
-			e.router.Find(r.Method, getPath(r), c)
+			e.findRouter(r.Host).Find(r.Method, getPath(r), c)
 			h := c.Handler()
-			for i := len(e.middleware) - 1; i >= 0; i-- {
-				h = e.middleware[i](h)
-			}
+			h = applyMiddleware(h, e.middleware...)
 			return h(c)
 		}
-		for i := len(e.premiddleware) - 1; i >= 0; i-- {
-			h = e.premiddleware[i](h)
-		}
+		h = applyMiddleware(h, e.premiddleware...)
 	}
 
 	// Execute chain
@@ -605,25 +628,46 @@ func (e *Echo) Start(address string) error {
 }
 
 // StartTLS starts an HTTPS server.
-func (e *Echo) StartTLS(address string, certFile, keyFile string) (err error) {
-	if certFile == "" || keyFile == "" {
-		return errors.New("invalid tls configuration")
+// If `certFile` or `keyFile` is `string` the values are treated as file paths.
+// If `certFile` or `keyFile` is `[]byte` the values are treated as the certificate or key as-is.
+func (e *Echo) StartTLS(address string, certFile, keyFile interface{}) (err error) {
+	var cert []byte
+	if cert, err = filepathOrContent(certFile); err != nil {
+		return
 	}
+
+	var key []byte
+	if key, err = filepathOrContent(keyFile); err != nil {
+		return
+	}
+
 	s := e.TLSServer
 	s.TLSConfig = new(tls.Config)
 	s.TLSConfig.Certificates = make([]tls.Certificate, 1)
-	s.TLSConfig.Certificates[0], err = tls.LoadX509KeyPair(certFile, keyFile)
-	if err != nil {
+	if s.TLSConfig.Certificates[0], err = tls.X509KeyPair(cert, key); err != nil {
 		return
 	}
+
 	return e.startTLS(address)
 }
 
+func filepathOrContent(fileOrContent interface{}) (content []byte, err error) {
+	switch v := fileOrContent.(type) {
+	case string:
+		return ioutil.ReadFile(v)
+	case []byte:
+		return v, nil
+	default:
+		return nil, ErrInvalidCertOrKeyType
+	}
+}
+
 // StartAutoTLS starts an HTTPS server using certificates automatically installed from https://letsencrypt.org.
 func (e *Echo) StartAutoTLS(address string) error {
 	s := e.TLSServer
 	s.TLSConfig = new(tls.Config)
 	s.TLSConfig.GetCertificate = e.AutoTLSManager.GetCertificate
+	s.TLSConfig.NextProtos = append(s.TLSConfig.NextProtos, acme.ALPNProto)
 	return e.startTLS(address)
 }
 
@@ -742,6 +786,15 @@ func getPath(r *http.Request) string {
 	return path
 }
 
+func (e *Echo) findRouter(host string) *Router {
+	if len(e.routers) > 0 {
+		if r, ok := e.routers[host]; ok {
+			return r
+		}
+	}
+	return e.router
+}
+
 func handlerName(h HandlerFunc) string {
 	t := reflect.ValueOf(h).Type()
 	if t.Kind() == reflect.Func {
@@ -764,13 +817,14 @@ type tcpKeepAliveListener struct {
 }
 
 func (ln tcpKeepAliveListener) Accept() (c net.Conn, err error) {
-	tc, err := ln.AcceptTCP()
-	if err != nil {
+	if c, err = ln.AcceptTCP(); err != nil {
+		return
+	} else if err = c.(*net.TCPConn).SetKeepAlive(true); err != nil {
+		return
+	} else if err = c.(*net.TCPConn).SetKeepAlivePeriod(3 * time.Minute); err != nil {
 		return
 	}
-	tc.SetKeepAlive(true)
-	tc.SetKeepAlivePeriod(3 * time.Minute)
-	return tc, nil
+	return
 }
 
 func newListener(address string) (*tcpKeepAliveListener, error) {
@@ -780,3 +834,10 @@ func newListener(address string) (*tcpKeepAliveListener, error) {
 	}
 	return &tcpKeepAliveListener{l.(*net.TCPListener)}, nil
 }
+
+func applyMiddleware(h HandlerFunc, middleware ...MiddlewareFunc) HandlerFunc {
+	for i := len(middleware) - 1; i >= 0; i-- {
+		h = middleware[i](h)
+	}
+	return h
+}

vendor/github.com/labstack/echo/v4/go.mod

@@ -1,13 +1,15 @@
 module github.com/labstack/echo/v4
 
+go 1.12
+
 require (
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible
-	github.com/labstack/gommon v0.2.8
-	github.com/mattn/go-colorable v0.0.9 // indirect
-	github.com/mattn/go-isatty v0.0.4 // indirect
+	github.com/labstack/gommon v0.2.9
 	github.com/stretchr/testify v1.3.0
-	github.com/valyala/bytebufferpool v1.0.0 // indirect
-	github.com/valyala/fasttemplate v0.0.0-20170224212429-dcecefd839c4
-	golang.org/x/crypto v0.0.0-20190130090550-b01c7a725664
-	golang.org/x/sys v0.0.0-20190129075346-302c3dd5f1cc // indirect
+	github.com/valyala/fasttemplate v1.0.1
+	golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5
+	golang.org/x/net v0.0.0-20190607181551-461777fb6f67 // indirect
+	golang.org/x/sys v0.0.0-20190609082536-301114b31cce // indirect
+	golang.org/x/text v0.3.2 // indirect
+	golang.org/x/tools v0.0.0-20190608022120-eacb66d2a7c3 // indirect
 )

vendor/github.com/labstack/echo/v4/go.sum

@@ -1,23 +1,53 @@
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/labstack/gommon v0.2.8 h1:JvRqmeZcfrHC5u6uVleB4NxxNbzx6gpbJiQknDbKQu0=
 github.com/labstack/gommon v0.2.8/go.mod h1:/tj9csK2iPSBvn+3NLM9e52usepMtrd5ilFYA+wQNJ4=
-github.com/mattn/go-colorable v0.0.9 h1:UVL0vNpWh04HeJXV0KLcaT7r06gOH2l4OW6ddYRUIY4=
-github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
-github.com/mattn/go-isatty v0.0.4 h1:bnP0vzxcAdeI1zdubAl5PjU6zsERjGZb7raWodagDYs=
-github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
+github.com/labstack/gommon v0.2.9 h1:heVeuAYtevIQVYkGj6A41dtfT91LrvFG220lavpWhrU=
+github.com/labstack/gommon v0.2.9/go.mod h1:E8ZTmW9vw5az5/ZyHWCp0Lw4OH2ecsaBP1C/NKavGG4=
+github.com/mattn/go-colorable v0.1.1 h1:G1f5SKeVxmagw/IyvzvtZE4Gybcc4Tr1tf7I8z0XgOg=
+github.com/mattn/go-colorable v0.1.1/go.mod h1:FuOcm+DKB9mbwrcAfNl7/TZVBZ6rcnceauSikq3lYCQ=
+github.com/mattn/go-colorable v0.1.2 h1:/bC9yWikZXAL9uJdulbSfyVNIR3n3trXl+v8+1sx8mU=
+github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
+github.com/mattn/go-isatty v0.0.5/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+github.com/mattn/go-isatty v0.0.7 h1:UvyT9uN+3r7yLEYSlJsbQGdsaB/a0DlgWP3pql6iwOc=
+github.com/mattn/go-isatty v0.0.7/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+github.com/mattn/go-isatty v0.0.8 h1:HLtExJ+uU2HOZ+wI0Tt5DtUDrx8yhUqDcp7fYERX4CE=
+github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
 github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
-github.com/valyala/fasttemplate v0.0.0-20170224212429-dcecefd839c4 h1:gKMu1Bf6QINDnvyZuTaACm9ofY+PRh+5vFz4oxBZeF8=
-github.com/valyala/fasttemplate v0.0.0-20170224212429-dcecefd839c4/go.mod h1:50wTf68f99/Zt14pr046Tgt3Lp2vLyFZKzbFXTOabXw=
-golang.org/x/crypto v0.0.0-20190130090550-b01c7a725664 h1:YbZJ76lQ1BqNhVe7dKTSB67wDrc2VPRR75IyGyyPDX8=
-golang.org/x/crypto v0.0.0-20190130090550-b01c7a725664/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
-golang.org/x/sys v0.0.0-20190129075346-302c3dd5f1cc h1:WiYx1rIFmx8c0mXAFtv5D/mHyKe1+jmuP7PViuwqwuQ=
-golang.org/x/sys v0.0.0-20190129075346-302c3dd5f1cc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+github.com/valyala/fasttemplate v1.0.1 h1:tY9CJiPnMXf1ERmG2EyK7gNUd+c6RKGD0IfU8WdUSz8=
+github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734 h1:p/H982KKEjUnLJkM3tt/LemDnOc1GiZL5FCVlORJ5zo=
+golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5 h1:58fnuSXlxZmFdJyvtTFVmVhcMLU6v5fEb/ok4wyqtNU=
+golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190522155817-f3200d17e092 h1:4QSRKanuywn15aTZvI/mIDEgPQpswuFndXpOj3rKEco=
+golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
+golang.org/x/net v0.0.0-20190607181551-461777fb6f67 h1:rJJxsykSlULwd2P2+pg/rtnwN2FrWp4IuCxOSyS0V00=
+golang.org/x/net v0.0.0-20190607181551-461777fb6f67/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190531175056-4c3a928424d2 h1:T5DasATyLQfmbTpfEXx/IOL9vfjzW6up+ZDkmHvIf2s=
+golang.org/x/sys v0.0.0-20190531175056-4c3a928424d2/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190602015325-4c4f7f33c9ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190609082536-301114b31cce/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190608022120-eacb66d2a7c3/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=

vendor/github.com/labstack/echo/v4/group.go

@@ -2,7 +2,6 @@ package echo
 
 import (
 	"net/http"
-	"path"
 )
 
 type (
@@ -10,6 +9,8 @@ type (
 	// routes that share a common middleware or functionality that should be separate
 	// from the parent echo instance while still inheriting from it.
 	Group struct {
+		common
+		host       string
 		prefix     string
 		middleware []MiddlewareFunc
 		echo       *Echo
@@ -19,13 +20,13 @@ type (
 // Use implements `Echo#Use()` for sub-routes within the Group.
 func (g *Group) Use(middleware ...MiddlewareFunc) {
 	g.middleware = append(g.middleware, middleware...)
+	if len(g.middleware) == 0 {
+		return
+	}
 	// Allow all requests to reach the group as they might get dropped if router
 	// doesn't find a match, making none of the group middleware process.
-	for _, p := range []string{"", "/*"} {
-		g.echo.Any(path.Clean(g.prefix+p), func(c Context) error {
-			return NotFoundHandler(c)
-		}, g.middleware...)
-	}
+	g.Any("", NotFoundHandler)
+	g.Any("/*", NotFoundHandler)
 }
 
 // CONNECT implements `Echo#CONNECT()` for sub-routes within the Group.
@@ -92,21 +93,23 @@ func (g *Group) Match(methods []string, path string, handler HandlerFunc, middle
 }
 
 // Group creates a new sub-group with prefix and optional sub-group-level middleware.
-func (g *Group) Group(prefix string, middleware ...MiddlewareFunc) *Group {
+func (g *Group) Group(prefix string, middleware ...MiddlewareFunc) (sg *Group) {
 	m := make([]MiddlewareFunc, 0, len(g.middleware)+len(middleware))
 	m = append(m, g.middleware...)
 	m = append(m, middleware...)
-	return g.echo.Group(g.prefix+prefix, m...)
+	sg = g.echo.Group(g.prefix+prefix, m...)
+	sg.host = g.host
+	return
 }
 
 // Static implements `Echo#Static()` for sub-routes within the Group.
 func (g *Group) Static(prefix, root string) {
-	static(g, prefix, root)
+	g.static(prefix, root, g.GET)
 }
 
 // File implements `Echo#File()` for sub-routes within the Group.
 func (g *Group) File(path, file string) {
-	g.echo.File(g.prefix+path, file)
+	g.file(g.prefix+path, file, g.GET)
 }
 
 // Add implements `Echo#Add()` for sub-routes within the Group.
@@ -117,5 +120,5 @@ func (g *Group) Add(method, path string, handler HandlerFunc, middleware ...Midd
 	m := make([]MiddlewareFunc, 0, len(g.middleware)+len(middleware))
 	m = append(m, g.middleware...)
 	m = append(m, middleware...)
-	return g.echo.Add(method, g.prefix+path, handler, m...)
+	return g.echo.add(g.host, method, g.prefix+path, handler, m...)
 }

vendor/github.com/labstack/echo/v4/middleware/compress.go

@@ -111,6 +111,9 @@ func (w *gzipResponseWriter) Write(b []byte) (int, error) {
 
 func (w *gzipResponseWriter) Flush() {
 	w.Writer.(*gzip.Writer).Flush()
+	if flusher, ok := w.ResponseWriter.(http.Flusher); ok {
+		flusher.Flush()
+	}
 }
 
 func (w *gzipResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {

vendor/github.com/labstack/echo/v4/middleware/cors.go

@@ -102,6 +102,10 @@ func CORSWithConfig(config CORSConfig) echo.MiddlewareFunc {
 					allowOrigin = o
 					break
 				}
+				if matchSubdomain(origin, o) {
+					allowOrigin = origin
+					break
+				}
 			}
 
 			// Simple request

vendor/github.com/labstack/echo/v4/middleware/jwt.go

@@ -26,10 +26,14 @@ type (
 		// It may be used to define a custom JWT error.
 		ErrorHandler JWTErrorHandler
 
-		// Signing key to validate token.
-		// Required.
+		// Signing key to validate token. Used as fallback if SigningKeys has length 0.
+		// Required. This or SigningKeys.
 		SigningKey interface{}
 
+		// Map of signing keys to validate token with kid field usage.
+		// Required. This or SigningKey.
+		SigningKeys map[string]interface{}
+
 		// Signing method, used to check token signing method.
 		// Optional. Default value HS256.
 		SigningMethod string
@@ -48,6 +52,7 @@ type (
 		// Possible values:
 		// - "header:<name>"
 		// - "query:<name>"
+		// - "param:<name>"
 		// - "cookie:<name>"
 		TokenLookup string
 
@@ -110,7 +115,7 @@ func JWTWithConfig(config JWTConfig) echo.MiddlewareFunc {
 	if config.Skipper == nil {
 		config.Skipper = DefaultJWTConfig.Skipper
 	}
-	if config.SigningKey == nil {
+	if config.SigningKey == nil && len(config.SigningKeys) == 0 {
 		panic("echo: jwt middleware requires signing key")
 	}
 	if config.SigningMethod == "" {
@@ -133,6 +138,15 @@ func JWTWithConfig(config JWTConfig) echo.MiddlewareFunc {
 		if t.Method.Alg() != config.SigningMethod {
 			return nil, fmt.Errorf("unexpected jwt signing method=%v", t.Header["alg"])
 		}
+		if len(config.SigningKeys) > 0 {
+			if kid, ok := t.Header["kid"].(string); ok {
+				if key, ok := config.SigningKeys[kid]; ok {
+					return key, nil
+				}
+			}
+			return nil, fmt.Errorf("unexpected jwt key id=%v", t.Header["kid"])
+		}
+
 		return config.SigningKey, nil
 	}
 
@@ -142,6 +156,8 @@ func JWTWithConfig(config JWTConfig) echo.MiddlewareFunc {
 	switch parts[0] {
 	case "query":
 		extractor = jwtFromQuery(parts[1])
+	case "param":
+		extractor = jwtFromParam(parts[1])
 	case "cookie":
 		extractor = jwtFromCookie(parts[1])
 	}
@@ -215,6 +231,17 @@ func jwtFromQuery(param string) jwtExtractor {
 	}
 }
 
+// jwtFromParam returns a `jwtExtractor` that extracts token from the url param string.
+func jwtFromParam(param string) jwtExtractor {
+	return func(c echo.Context) (string, error) {
+		token := c.Param(param)
+		if token == "" {
+			return "", ErrJWTMissing
+		}
+		return token, nil
+	}
+}
+
 // jwtFromCookie returns a `jwtExtractor` that extracts token from the named cookie.
 func jwtFromCookie(name string) jwtExtractor {
 	return func(c echo.Context) (string, error) {

vendor/github.com/labstack/echo/v4/middleware/key_auth.go

@@ -99,11 +99,14 @@ func KeyAuthWithConfig(config KeyAuthConfig) echo.MiddlewareFunc {
 			}
 			valid, err := config.Validator(key, c)
 			if err != nil {
-				return err
+				return &echo.HTTPError{
+					Code:     http.StatusUnauthorized,
+					Message:  "invalid key",
+					Internal: err,
+				}
 			} else if valid {
 				return next(c)
 			}
-
 			return echo.ErrUnauthorized
 		}
 	}

vendor/github.com/labstack/echo/v4/middleware/logger.go

@@ -2,6 +2,7 @@ package middleware
 
 import (
 	"bytes"
+	"encoding/json"
 	"io"
 	"os"
 	"strconv"
@@ -20,7 +21,7 @@ type (
 		// Skipper defines a function to skip middleware.
 		Skipper Skipper
 
-		// Tags to constructed the logger format.
+		// Tags to construct the logger format.
 		//
 		// - time_unix
 		// - time_unix_nano
@@ -175,7 +176,10 @@ func LoggerWithConfig(config LoggerConfig) echo.MiddlewareFunc {
 					return buf.WriteString(s)
 				case "error":
 					if err != nil {
-						return buf.WriteString(err.Error())
+						// Error may contain invalid JSON e.g. `"`
+						b, _ := json.Marshal(err.Error())
+						b = b[1 : len(b)-1]
+						return buf.Write(b)
 					}
 				case "latency":
 					l := stop.Sub(start)

vendor/github.com/labstack/echo/v4/middleware/proxy.go

@@ -200,7 +200,7 @@ func Proxy(balancer ProxyBalancer) echo.MiddlewareFunc {
 func ProxyWithConfig(config ProxyConfig) echo.MiddlewareFunc {
 	// Defaults
 	if config.Skipper == nil {
-		config.Skipper = DefaultLoggerConfig.Skipper
+		config.Skipper = DefaultProxyConfig.Skipper
 	}
 	if config.Balancer == nil {
 		panic("echo: proxy middleware requires balancer")

vendor/github.com/labstack/echo/v4/middleware/redirect.go

@@ -21,7 +21,7 @@ type RedirectConfig struct {
 // 2) return the appropriate redirect url.
 type redirectLogic func(scheme, host, uri string) (ok bool, url string)
 
-const www = "www"
+const www = "www."
 
 // DefaultRedirectConfig is the default Redirect middleware config.
 var DefaultRedirectConfig = RedirectConfig{
@@ -60,7 +60,7 @@ func HTTPSWWWRedirect() echo.MiddlewareFunc {
 // See `HTTPSWWWRedirect()`.
 func HTTPSWWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc {
 	return redirect(config, func(scheme, host, uri string) (ok bool, url string) {
-		if ok = scheme != "https" && host[:3] != www; ok {
+		if ok = scheme != "https" && host[:4] != www; ok {
 			url = "https://www." + host + uri
 		}
 		return
@@ -80,7 +80,7 @@ func HTTPSNonWWWRedirect() echo.MiddlewareFunc {
 func HTTPSNonWWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc {
 	return redirect(config, func(scheme, host, uri string) (ok bool, url string) {
 		if ok = scheme != "https"; ok {
-			if host[:3] == www {
+			if host[:4] == www {
 				host = host[4:]
 			}
 			url = "https://" + host + uri
@@ -101,7 +101,7 @@ func WWWRedirect() echo.MiddlewareFunc {
 // See `WWWRedirect()`.
 func WWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc {
 	return redirect(config, func(scheme, host, uri string) (ok bool, url string) {
-		if ok = host[:3] != www; ok {
+		if ok = host[:4] != www; ok {
 			url = scheme + "://www." + host + uri
 		}
 		return
@@ -120,7 +120,7 @@ func NonWWWRedirect() echo.MiddlewareFunc {
 // See `NonWWWRedirect()`.
 func NonWWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc {
 	return redirect(config, func(scheme, host, uri string) (ok bool, url string) {
-		if ok = host[:3] == www; ok {
+		if ok = host[:4] == www; ok {
 			url = scheme + "://" + host[4:] + uri
 		}
 		return

vendor/github.com/labstack/echo/v4/middleware/secure.go

@@ -53,6 +53,19 @@ type (
 		// trusted web page context.
 		// Optional. Default value "".
 		ContentSecurityPolicy string `yaml:"content_security_policy"`
+
+		// CSPReportOnly would use the `Content-Security-Policy-Report-Only` header instead
+		// of the `Content-Security-Policy` header. This allows iterative updates of the
+		// content security policy by only reporting the violations that would
+		// have occurred instead of blocking the resource.
+		// Optional. Default value false.
+		CSPReportOnly bool `yaml:"csp_report_only"`
+
+		// HSTSPreloadEnabled will add the preload tag in the `Strict Transport Security`
+		// header, which enables the domain to be included in the HSTS preload list
+		// maintained by Chrome (and used by Firefox and Safari): https://hstspreload.org/
+		// Optional.  Default value false.
+		HSTSPreloadEnabled bool `yaml:"hsts_preload_enabled"`
 	}
 )
 
@@ -63,6 +76,7 @@ var (
 		XSSProtection:      "1; mode=block",
 		ContentTypeNosniff: "nosniff",
 		XFrameOptions:      "SAMEORIGIN",
+		HSTSPreloadEnabled: false,
 	}
 )
 
@@ -105,10 +119,17 @@ func SecureWithConfig(config SecureConfig) echo.MiddlewareFunc {
 				if !config.HSTSExcludeSubdomains {
 					subdomains = "; includeSubdomains"
 				}
+				if config.HSTSPreloadEnabled {
+					subdomains = fmt.Sprintf("%s; preload", subdomains)
+				}
 				res.Header().Set(echo.HeaderStrictTransportSecurity, fmt.Sprintf("max-age=%d%s", config.HSTSMaxAge, subdomains))
 			}
 			if config.ContentSecurityPolicy != "" {
-				res.Header().Set(echo.HeaderContentSecurityPolicy, config.ContentSecurityPolicy)
+				if config.CSPReportOnly {
+					res.Header().Set(echo.HeaderContentSecurityPolicyReportOnly, config.ContentSecurityPolicy)
+				} else {
+					res.Header().Set(echo.HeaderContentSecurityPolicy, config.ContentSecurityPolicy)
+				}
 			}
 			return next(c)
 		}

vendor/github.com/labstack/echo/v4/middleware/slash.go

@@ -1,6 +1,8 @@
 package middleware
 
 import (
+	"strings"
+
 	"github.com/labstack/echo/v4"
 )
 
@@ -49,7 +51,7 @@ func AddTrailingSlashWithConfig(config TrailingSlashConfig) echo.MiddlewareFunc
 			url := req.URL
 			path := url.Path
 			qs := c.QueryString()
-			if path != "/" && path[len(path)-1] != '/' {
+			if !strings.HasSuffix(path, "/") {
 				path += "/"
 				uri := path
 				if qs != "" {
@@ -97,7 +99,7 @@ func RemoveTrailingSlashWithConfig(config TrailingSlashConfig) echo.MiddlewareFu
 			path := url.Path
 			qs := c.QueryString()
 			l := len(path) - 1
-			if l >= 0 && path != "/" && path[l] == '/' {
+			if l > 0 && strings.HasSuffix(path, "/") {
 				path = path[:l]
 				uri := path
 				if qs != "" {

vendor/github.com/labstack/echo/v4/middleware/util.go

@@ -0,0 +1,54 @@
+package middleware
+
+import (
+	"strings"
+)
+
+func matchScheme(domain, pattern string) bool {
+	didx := strings.Index(domain, ":")
+	pidx := strings.Index(pattern, ":")
+	return didx != -1 && pidx != -1 && domain[:didx] == pattern[:pidx]
+}
+
+// matchSubdomain compares authority with wildcard
+func matchSubdomain(domain, pattern string) bool {
+	if !matchScheme(domain, pattern) {
+		return false
+	}
+	didx := strings.Index(domain, "://")
+	pidx := strings.Index(pattern, "://")
+	if didx == -1 || pidx == -1 {
+		return false
+	}
+	domAuth := domain[didx+3:]
+	// to avoid long loop by invalid long domain
+	if len(domAuth) > 253 {
+		return false
+	}
+	patAuth := pattern[pidx+3:]
+
+	domComp := strings.Split(domAuth, ".")
+	patComp := strings.Split(patAuth, ".")
+	for i := len(domComp)/2 - 1; i >= 0; i-- {
+		opp := len(domComp) - 1 - i
+		domComp[i], domComp[opp] = domComp[opp], domComp[i]
+	}
+	for i := len(patComp)/2 - 1; i >= 0; i-- {
+		opp := len(patComp) - 1 - i
+		patComp[i], patComp[opp] = patComp[opp], patComp[i]
+	}
+
+	for i, v := range domComp {
+		if len(patComp) <= i {
+			return false
+		}
+		p := patComp[i]
+		if p == "*" {
+			return true
+		}
+		if p != v {
+			return false
+		}
+	}
+	return false
+}

vendor/github.com/labstack/echo/v4/response.go

@@ -67,7 +67,10 @@ func (r *Response) WriteHeader(code int) {
 // Write writes the data to the connection as part of an HTTP reply.
 func (r *Response) Write(b []byte) (n int, err error) {
 	if !r.Committed {
-		r.WriteHeader(http.StatusOK)
+		if r.Status == 0 {
+			r.Status = http.StatusOK
+		}
+		r.WriteHeader(r.Status)
 	}
 	n, err = r.Writer.Write(b)
 	r.Size += int64(n)

vendor/github.com/labstack/echo/v4/router.go

@@ -33,6 +33,7 @@ type (
 		propfind HandlerFunc
 		put      HandlerFunc
 		trace    HandlerFunc
+		report   HandlerFunc
 	}
 )
 
@@ -57,7 +58,7 @@ func NewRouter(e *Echo) *Router {
 func (r *Router) Add(method, path string, h HandlerFunc) {
 	// Validate path
 	if path == "" {
-		panic("echo: path cannot be empty")
+		path = "/"
 	}
 	if path[0] != '/' {
 		path = "/" + path
@@ -79,14 +80,13 @@ func (r *Router) Add(method, path string, h HandlerFunc) {
 
 			if i == l {
 				r.insert(method, path[:i], h, pkind, ppath, pnames)
-				return
+			} else {
+				r.insert(method, path[:i], nil, pkind, "", nil)
 			}
-			r.insert(method, path[:i], nil, pkind, "", nil)
 		} else if path[i] == '*' {
 			r.insert(method, path[:i], nil, skind, "", nil)
 			pnames = append(pnames, "*")
 			r.insert(method, path[:i+1], h, akind, ppath, pnames)
-			return
 		}
 	}
 
@@ -248,6 +248,8 @@ func (n *node) addHandler(method string, h HandlerFunc) {
 		n.methodHandler.put = h
 	case http.MethodTrace:
 		n.methodHandler.trace = h
+	case REPORT:
+		n.methodHandler.report = h
 	}
 }
 
@@ -273,6 +275,8 @@ func (n *node) findHandler(method string) HandlerFunc {
 		return n.methodHandler.put
 	case http.MethodTrace:
 		return n.methodHandler.trace
+	case REPORT:
+		return n.methodHandler.report
 	default:
 		return nil
 	}

vendor/github.com/labstack/gommon/bytes/bytes.go

@@ -22,7 +22,7 @@ const (
 )
 
 var (
-	pattern = regexp.MustCompile(`(?i)^(-?\d+(?:\.\d+)?)([KMGTPE]B?|B?)$`)
+	pattern = regexp.MustCompile(`(?i)^(-?\d+(?:\.\d+)?)\s?([KMGTPE]B?|B?)$`)
 	global  = New()
 )
 

vendor/github.com/labstack/gommon/log/log.go

@@ -10,6 +10,7 @@ import (
 	"runtime"
 	"strconv"
 	"sync"
+	"sync/atomic"
 	"time"
 
 	"github.com/mattn/go-isatty"
@@ -21,7 +22,7 @@ import (
 type (
 	Logger struct {
 		prefix     string
-		level      Lvl
+		level      uint32
 		skip       int
 		output     io.Writer
 		template   *fasttemplate.Template
@@ -58,7 +59,7 @@ func init() {
 
 func New(prefix string) (l *Logger) {
 	l = &Logger{
-		level:    INFO,
+		level:    uint32(INFO),
 		skip:     2,
 		prefix:   prefix,
 		template: l.newTemplate(defaultHeader),
@@ -110,11 +111,11 @@ func (l *Logger) SetPrefix(p string) {
 }
 
 func (l *Logger) Level() Lvl {
-	return l.level
+	return Lvl(atomic.LoadUint32(&l.level))
 }
 
-func (l *Logger) SetLevel(v Lvl) {
-	l.level = v
+func (l *Logger) SetLevel(level Lvl) {
+	atomic.StoreUint32(&l.level, uint32(level))
 }
 
 func (l *Logger) Output() io.Writer {
@@ -247,8 +248,8 @@ func Level() Lvl {
 	return global.Level()
 }
 
-func SetLevel(v Lvl) {
-	global.SetLevel(v)
+func SetLevel(level Lvl) {
+	global.SetLevel(level)
 }
 
 func Output() io.Writer {
@@ -347,16 +348,14 @@ func Panicj(j JSON) {
 	global.Panicj(j)
 }
 
-func (l *Logger) log(v Lvl, format string, args ...interface{}) {
-	l.mutex.Lock()
-	defer l.mutex.Unlock()
-	buf := l.bufferPool.Get().(*bytes.Buffer)
-	buf.Reset()
-	defer l.bufferPool.Put(buf)
-	_, file, line, _ := runtime.Caller(l.skip)
-
-	if v >= l.level || v == 0 {
+func (l *Logger) log(level Lvl, format string, args ...interface{}) {
+	if level >= l.Level() || level == 0 {
+		buf := l.bufferPool.Get().(*bytes.Buffer)
+		buf.Reset()
+		defer l.bufferPool.Put(buf)
+		_, file, line, _ := runtime.Caller(l.skip)
 		message := ""
+
 		if format == "" {
 			message = fmt.Sprint(args...)
 		} else if format == "json" {
@@ -376,7 +375,7 @@ func (l *Logger) log(v Lvl, format string, args ...interface{}) {
 			case "time_rfc3339_nano":
 				return w.Write([]byte(time.Now().Format(time.RFC3339Nano)))
 			case "level":
-				return w.Write([]byte(l.levels[v]))
+				return w.Write([]byte(l.levels[level]))
 			case "prefix":
 				return w.Write([]byte(l.prefix))
 			case "long_file":
@@ -409,6 +408,8 @@ func (l *Logger) log(v Lvl, format string, args ...interface{}) {
 				buf.WriteString(message)
 			}
 			buf.WriteByte('\n')
+			l.mutex.Lock()
+			defer l.mutex.Unlock()
 			l.output.Write(buf.Bytes())
 		}
 	}

vendor/github.com/mattn/go-colorable/go.mod

@@ -1,3 +1,3 @@
 module github.com/mattn/go-colorable
 
-require github.com/mattn/go-isatty v0.0.5
+require github.com/mattn/go-isatty v0.0.8

vendor/github.com/mattn/go-isatty/isatty_android.go

@@ -0,0 +1,23 @@
+// +build android
+
+package isatty
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+const ioctlReadTermios = syscall.TCGETS
+
+// IsTerminal return true if the file descriptor is terminal.
+func IsTerminal(fd uintptr) bool {
+	var termios syscall.Termios
+	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
+	return err == 0
+}
+
+// IsCygwinTerminal return true if the file descriptor is a cygwin or msys2
+// terminal. This is also always false on this environment.
+func IsCygwinTerminal(fd uintptr) bool {
+	return false
+}

vendor/github.com/mattn/go-isatty/isatty_others.go

@@ -1,4 +1,4 @@
-// +build appengine js
+// +build appengine js nacl
 
 package isatty
 

vendor/github.com/mattn/go-isatty/isatty_tcgets.go

@@ -1,5 +1,6 @@
-// +build linux
+// +build linux aix
 // +build !appengine
+// +build !android
 
 package isatty
 

vendor/github.com/paulrosania/go-charset/charset/ascii.go

@@ -21,7 +21,7 @@ type codePointError struct {
 }
 
 func (e *codePointError) Error() string {
-	return fmt.Sprintf("Parse error at index %n: Code point %n is undefined in %s", e.i, e.cp, e.charset)
+	return fmt.Sprintf("Parse error at index %d: Code point %d is undefined in %s", e.i, e.cp, e.charset)
 }
 
 func (strict translateFromASCII) Translate(data []byte, eof bool) (int, []byte, error) {

vendor/github.com/paulrosania/go-charset/charset/charset.go

@@ -6,7 +6,7 @@
 //
 //	import _ "github.com/paulrosania/go-charset/data"
 //
-// It can also made available in a data directory (by settting CharsetDir).
+// It can also made available in a data directory (by setting CharsetDir).
 package charset
 
 import (

vendor/github.com/sirupsen/logrus/.travis.yml

@@ -1,52 +1,25 @@
 language: go
 go_import_path: github.com/sirupsen/logrus
+git:
+  depth: 1
 env:
-  - GOMAXPROCS=4 GORACE=halt_on_error=1
+  - GO111MODULE=on
+  - GO111MODULE=off
+go: [ 1.11.x, 1.12.x ]
+os: [ linux, osx ]
 matrix:
-  include:
-    - go: 1.10.x
-      install:
-        - go get github.com/stretchr/testify/assert
-        - go get golang.org/x/crypto/ssh/terminal
-        - go get golang.org/x/sys/unix
-        - go get golang.org/x/sys/windows
-      script:
-        - go test -race -v ./...
-    - go: 1.11.x
-      env: GO111MODULE=on
-      install:
-        - go mod download
-      script:
-        - go test -race -v ./...
-    - go: 1.11.x
+  exclude:
+    - go: 1.12.x
       env: GO111MODULE=off
-      install:
-        - go get github.com/stretchr/testify/assert
-        - go get golang.org/x/crypto/ssh/terminal
-        - go get golang.org/x/sys/unix
-        - go get golang.org/x/sys/windows
-      script:
-        - go test -race -v ./...
-    - go: 1.10.x
-      install:
-        - go get github.com/stretchr/testify/assert
-        - go get golang.org/x/crypto/ssh/terminal
-        - go get golang.org/x/sys/unix
-        - go get golang.org/x/sys/windows
-      script:
-        - go test -race -v -tags appengine ./...
     - go: 1.11.x
-      env: GO111MODULE=on
-      install:
-        - go mod download
-      script:
-        - go test -race -v -tags appengine ./...
-    - go: 1.11.x
-      env: GO111MODULE=off
-      install:
-        - go get github.com/stretchr/testify/assert
-        - go get golang.org/x/crypto/ssh/terminal
-        - go get golang.org/x/sys/unix
-        - go get golang.org/x/sys/windows
-      script:
-        - go test -race -v -tags appengine ./...
+      os: osx
+install:
+  - ./travis/install.sh
+  - if [[ "$GO111MODULE" ==  "on" ]]; then go mod download; fi
+  - if [[ "$GO111MODULE" == "off" ]]; then go get github.com/stretchr/testify/assert golang.org/x/sys/unix github.com/konsorten/go-windows-terminal-sequences; fi
+script:
+  - ./travis/cross_build.sh
+  - export GOMAXPROCS=4
+  - export GORACE=halt_on_error=1
+  - go test -race -v ./...
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then go test -race -v -tags appengine ./... ; fi

vendor/github.com/sirupsen/logrus/CHANGELOG.md

@@ -1,3 +1,38 @@
+# 1.4.2
+  * Fixes build break for plan9, nacl, solaris
+# 1.4.1
+This new release introduces:
+  * Enhance TextFormatter to not print caller information when they are empty (#944)
+  * Remove dependency on golang.org/x/crypto (#932, #943) 
+
+Fixes:
+  * Fix Entry.WithContext method to return a copy of the initial entry (#941)
+
+# 1.4.0
+This new release introduces:
+  * Add `DeferExitHandler`, similar to `RegisterExitHandler` but prepending the handler to the list of handlers (semantically like `defer`) (#848).
+  * Add `CallerPrettyfier` to `JSONFormatter` and `TextFormatter (#909, #911)
+  * Add `Entry.WithContext()` and `Entry.Context`, to set a context on entries to be used e.g. in hooks (#919).
+
+Fixes:
+  * Fix wrong method calls `Logger.Print` and `Logger.Warningln` (#893).
+  * Update `Entry.Logf` to not do string formatting unless the log level is enabled (#903)
+  * Fix infinite recursion on unknown `Level.String()` (#907)
+  * Fix race condition in `getCaller` (#916).
+
+
+# 1.3.0
+This new release introduces:
+  * Log, Logf, Logln functions for Logger and Entry that take a Level
+
+Fixes:
+  * Building prometheus node_exporter on AIX (#840)
+  * Race condition in TextFormatter (#468)
+  * Travis CI import path (#868)
+  * Remove coloured output on Windows (#862)
+  * Pointer to func as field in JSONFormatter (#870)
+  * Properly marshal Levels (#873)
+
 # 1.2.0
 This new release introduces:
   * A new method `SetReportCaller` in the `Logger` to enable the file, line and calling function from which the trace has been issued

vendor/github.com/sirupsen/logrus/README.md

@@ -365,6 +365,7 @@ Third party logging formatters:
 * [`logstash`](https://github.com/bshuster-repo/logrus-logstash-hook). Logs fields as [Logstash](http://logstash.net) Events.
 * [`prefixed`](https://github.com/x-cray/logrus-prefixed-formatter). Displays log entry source along with alternative layout.
 * [`zalgo`](https://github.com/aybabtme/logzalgo). Invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦.
+* [`nested-logrus-formatter`](https://github.com/antonfisher/nested-logrus-formatter). Converts logrus fields to a nested structure.
 
 You can define your formatter by implementing the `Formatter` interface,
 requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a

vendor/github.com/sirupsen/logrus/alt_exit.go

@@ -51,9 +51,9 @@ func Exit(code int) {
 	os.Exit(code)
 }
 
-// RegisterExitHandler adds a Logrus Exit handler, call logrus.Exit to invoke
-// all handlers. The handlers will also be invoked when any Fatal log entry is
-// made.
+// RegisterExitHandler appends a Logrus Exit handler to the list of handlers,
+// call logrus.Exit to invoke all handlers. The handlers will also be invoked when
+// any Fatal log entry is made.
 //
 // This method is useful when a caller wishes to use logrus to log a fatal
 // message but also needs to gracefully shutdown. An example usecase could be
@@ -62,3 +62,15 @@ func Exit(code int) {
 func RegisterExitHandler(handler func()) {
 	handlers = append(handlers, handler)
 }
+
+// DeferExitHandler prepends a Logrus Exit handler to the list of handlers,
+// call logrus.Exit to invoke all handlers. The handlers will also be invoked when
+// any Fatal log entry is made.
+//
+// This method is useful when a caller wishes to use logrus to log a fatal
+// message but also needs to gracefully shutdown. An example usecase could be
+// closing database connections, or sending a alert that the application is
+// closing.
+func DeferExitHandler(handler func()) {
+	handlers = append([]func(){handler}, handlers...)
+}

vendor/github.com/sirupsen/logrus/entry.go

@@ -2,6 +2,7 @@ package logrus
 
 import (
 	"bytes"
+	"context"
 	"fmt"
 	"os"
 	"reflect"
@@ -69,6 +70,9 @@ type Entry struct {
 	// When formatter is called in entry.log(), a Buffer may be set to entry
 	Buffer *bytes.Buffer
 
+	// Contains the context set by the user. Useful for hook processing etc.
+	Context context.Context
+
 	// err may contain a field formatting error
 	err string
 }
@@ -97,6 +101,11 @@ func (entry *Entry) WithError(err error) *Entry {
 	return entry.WithField(ErrorKey, err)
 }
 
+// Add a context to the Entry.
+func (entry *Entry) WithContext(ctx context.Context) *Entry {
+	return &Entry{Logger: entry.Logger, Data: entry.Data, Time: entry.Time, err: entry.err, Context: ctx}
+}
+
 // Add a single field to the Entry.
 func (entry *Entry) WithField(key string, value interface{}) *Entry {
 	return entry.WithFields(Fields{key: value})
@@ -130,12 +139,12 @@ func (entry *Entry) WithFields(fields Fields) *Entry {
 			data[k] = v
 		}
 	}
-	return &Entry{Logger: entry.Logger, Data: data, Time: entry.Time, err: fieldErr}
+	return &Entry{Logger: entry.Logger, Data: data, Time: entry.Time, err: fieldErr, Context: entry.Context}
 }
 
 // Overrides the time of the Entry.
 func (entry *Entry) WithTime(t time.Time) *Entry {
-	return &Entry{Logger: entry.Logger, Data: entry.Data, Time: t, err: entry.err}
+	return &Entry{Logger: entry.Logger, Data: entry.Data, Time: t, err: entry.err, Context: entry.Context}
 }
 
 // getPackageName reduces a fully qualified function name to the package name
@@ -156,20 +165,23 @@ func getPackageName(f string) string {
 
 // getCaller retrieves the name of the first non-logrus calling function
 func getCaller() *runtime.Frame {
+
+	// cache this package's fully-qualified name
+	callerInitOnce.Do(func() {
+		pcs := make([]uintptr, 2)
+		_ = runtime.Callers(0, pcs)
+		logrusPackage = getPackageName(runtime.FuncForPC(pcs[1]).Name())
+
+		// now that we have the cache, we can skip a minimum count of known-logrus functions
+		// XXX this is dubious, the number of frames may vary
+		minimumCallerDepth = knownLogrusFrames
+	})
+
 	// Restrict the lookback frames to avoid runaway lookups
 	pcs := make([]uintptr, maximumCallerDepth)
 	depth := runtime.Callers(minimumCallerDepth, pcs)
 	frames := runtime.CallersFrames(pcs[:depth])
 
-	// cache this package's fully-qualified name
-	callerInitOnce.Do(func() {
-		logrusPackage = getPackageName(runtime.FuncForPC(pcs[0]).Name())
-
-		// now that we have the cache, we can skip a minimum count of known-logrus functions
-		// XXX this is dubious, the number of frames may vary store an entry in a logger interface
-		minimumCallerDepth = knownLogrusFrames
-	})
-
 	for f, again := frames.Next(); again; f, again = frames.Next() {
 		pkg := getPackageName(f.Function)
 
@@ -298,7 +310,9 @@ func (entry *Entry) Panic(args ...interface{}) {
 // Entry Printf family functions
 
 func (entry *Entry) Logf(level Level, format string, args ...interface{}) {
-	entry.Log(level, fmt.Sprintf(format, args...))
+	if entry.Logger.IsLevelEnabled(level) {
+		entry.Log(level, fmt.Sprintf(format, args...))
+	}
 }
 
 func (entry *Entry) Tracef(format string, args ...interface{}) {

vendor/github.com/sirupsen/logrus/exported.go

@@ -1,6 +1,7 @@
 package logrus
 
 import (
+	"context"
 	"io"
 	"time"
 )
@@ -55,6 +56,11 @@ func WithError(err error) *Entry {
 	return std.WithField(ErrorKey, err)
 }
 
+// WithContext creates an entry from the standard logger and adds a context to it.
+func WithContext(ctx context.Context) *Entry {
+	return std.WithContext(ctx)
+}
+
 // WithField creates an entry from the standard logger and adds a field to
 // it. If you want multiple fields, use `WithFields`.
 //

vendor/github.com/sirupsen/logrus/go.mod

@@ -6,6 +6,5 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/stretchr/objx v0.1.1 // indirect
 	github.com/stretchr/testify v1.2.2
-	golang.org/x/crypto v0.0.0-20180904163835-0709b304e793
-	golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33
+	golang.org/x/sys v0.0.0-20190422165155-953cdadca894
 )

vendor/github.com/sirupsen/logrus/go.sum

@@ -2,6 +2,7 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/konsorten/go-windows-terminal-sequences v0.0.0-20180402223658-b729f2633dfe h1:CHRGQ8V7OlCYtwaKPJi3iA7J+YdNKdo8j7nG5IgDhjs=
 github.com/konsorten/go-windows-terminal-sequences v0.0.0-20180402223658-b729f2633dfe/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
@@ -9,7 +10,7 @@ github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-golang.org/x/crypto v0.0.0-20180904163835-0709b304e793 h1:u+LnwYTOOW7Ukr/fppxEb1Nwz0AtPflrblfvUudpo+I=
-golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33 h1:I6FyU15t786LL7oL/hn43zqTuEGr4PN7F4XJ1p4E3Y8=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190422165155-953cdadca894 h1:Cz4ceDQGXuKRnVBDTS23GTn/pU5OE2C0WrNTOYK1Uuc=
+golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

vendor/github.com/sirupsen/logrus/json_formatter.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
+	"runtime"
 )
 
 type fieldKey string
@@ -42,6 +43,12 @@ type JSONFormatter struct {
 	// }
 	FieldMap FieldMap
 
+	// CallerPrettyfier can be set by the user to modify the content
+	// of the function and file keys in the json data when ReportCaller is
+	// activated. If any of the returned value is the empty string the
+	// corresponding key will be removed from json fields.
+	CallerPrettyfier func(*runtime.Frame) (function string, file string)
+
 	// PrettyPrint will indent all json logs
 	PrettyPrint bool
 }
@@ -82,8 +89,17 @@ func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
 	data[f.FieldMap.resolve(FieldKeyMsg)] = entry.Message
 	data[f.FieldMap.resolve(FieldKeyLevel)] = entry.Level.String()
 	if entry.HasCaller() {
-		data[f.FieldMap.resolve(FieldKeyFunc)] = entry.Caller.Function
-		data[f.FieldMap.resolve(FieldKeyFile)] = fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
+		funcVal := entry.Caller.Function
+		fileVal := fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
+		if f.CallerPrettyfier != nil {
+			funcVal, fileVal = f.CallerPrettyfier(entry.Caller)
+		}
+		if funcVal != "" {
+			data[f.FieldMap.resolve(FieldKeyFunc)] = funcVal
+		}
+		if fileVal != "" {
+			data[f.FieldMap.resolve(FieldKeyFile)] = fileVal
+		}
 	}
 
 	var b *bytes.Buffer
@@ -98,7 +114,7 @@ func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
 		encoder.SetIndent("", "  ")
 	}
 	if err := encoder.Encode(data); err != nil {
-		return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
+		return nil, fmt.Errorf("failed to marshal fields to JSON, %v", err)
 	}
 
 	return b.Bytes(), nil

vendor/github.com/sirupsen/logrus/logger.go

@@ -1,6 +1,7 @@
 package logrus
 
 import (
+	"context"
 	"io"
 	"os"
 	"sync"
@@ -124,6 +125,13 @@ func (logger *Logger) WithError(err error) *Entry {
 	return entry.WithError(err)
 }
 
+// Add a context to the log entry.
+func (logger *Logger) WithContext(ctx context.Context) *Entry {
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithContext(ctx)
+}
+
 // Overrides the time of the log entry.
 func (logger *Logger) WithTime(t time.Time) *Entry {
 	entry := logger.newEntry()
@@ -200,7 +208,7 @@ func (logger *Logger) Info(args ...interface{}) {
 
 func (logger *Logger) Print(args ...interface{}) {
 	entry := logger.newEntry()
-	entry.Info(args...)
+	entry.Print(args...)
 	logger.releaseEntry(entry)
 }
 
@@ -256,7 +264,7 @@ func (logger *Logger) Warnln(args ...interface{}) {
 }
 
 func (logger *Logger) Warningln(args ...interface{}) {
-	logger.Warn(args...)
+	logger.Warnln(args...)
 }
 
 func (logger *Logger) Errorln(args ...interface{}) {

vendor/github.com/sirupsen/logrus/logrus.go

@@ -74,7 +74,7 @@ func (level Level) MarshalText() ([]byte, error) {
 		return []byte("panic"), nil
 	}
 
-	return nil, fmt.Errorf("not a valid lorus level %q", level)
+	return nil, fmt.Errorf("not a valid logrus level %d", level)
 }
 
 // A constant exposing all logging levels

vendor/github.com/sirupsen/logrus/terminal_check_aix.go

@@ -1,9 +0,0 @@
-// +build !appengine,!js,!windows,aix
-
-package logrus
-
-import "io"
-
-func checkIfTerminal(w io.Writer) bool {
-	return false
-}

vendor/github.com/sirupsen/logrus/terminal_check_bsd.go

@@ -0,0 +1,13 @@
+// +build darwin dragonfly freebsd netbsd openbsd
+
+package logrus
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TIOCGETA
+
+func isTerminal(fd int) bool {
+	_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
+	return err == nil
+}
+

vendor/github.com/sirupsen/logrus/terminal_check_no_terminal.go

@@ -1,4 +1,4 @@
-// +build js
+// +build js nacl plan9
 
 package logrus
 

vendor/github.com/sirupsen/logrus/terminal_check_notappengine.go

@@ -1,18 +1,16 @@
-// +build !appengine,!js,!windows,!aix
+// +build !appengine,!js,!windows,!nacl,!plan9
 
 package logrus
 
 import (
 	"io"
 	"os"
-
-	"golang.org/x/crypto/ssh/terminal"
 )
 
 func checkIfTerminal(w io.Writer) bool {
 	switch v := w.(type) {
 	case *os.File:
-		return terminal.IsTerminal(int(v.Fd()))
+		return isTerminal(int(v.Fd()))
 	default:
 		return false
 	}

vendor/github.com/sirupsen/logrus/terminal_check_solaris.go

@@ -0,0 +1,11 @@
+package logrus
+
+import (
+	"golang.org/x/sys/unix"
+)
+
+// IsTerminal returns true if the given file descriptor is a terminal.
+func isTerminal(fd int) bool {
+	_, err := unix.IoctlGetTermio(fd, unix.TCGETA)
+	return err == nil
+}

vendor/github.com/sirupsen/logrus/terminal_check_unix.go

@@ -0,0 +1,13 @@
+// +build linux aix
+
+package logrus
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TCGETS
+
+func isTerminal(fd int) bool {
+	_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
+	return err == nil
+}
+

vendor/github.com/sirupsen/logrus/terminal_check_windows.go

@@ -6,15 +6,29 @@ import (
 	"io"
 	"os"
 	"syscall"
+
+	sequences "github.com/konsorten/go-windows-terminal-sequences"
 )
 
+func initTerminal(w io.Writer) {
+	switch v := w.(type) {
+	case *os.File:
+		sequences.EnableVirtualTerminalProcessing(syscall.Handle(v.Fd()), true)
+	}
+}
+
 func checkIfTerminal(w io.Writer) bool {
+	var ret bool
 	switch v := w.(type) {
 	case *os.File:
 		var mode uint32
 		err := syscall.GetConsoleMode(syscall.Handle(v.Fd()), &mode)
-		return err == nil
+		ret = (err == nil)
 	default:
-		return false
+		ret = false
 	}
+	if ret {
+		initTerminal(w)
+	}
+	return ret
 }

vendor/github.com/sirupsen/logrus/terminal_notwindows.go

@@ -1,8 +0,0 @@
-// +build !windows
-
-package logrus
-
-import "io"
-
-func initTerminal(w io.Writer) {
-}

vendor/github.com/sirupsen/logrus/terminal_windows.go

@@ -1,18 +0,0 @@
-// +build !appengine,!js,windows
-
-package logrus
-
-import (
-	"io"
-	"os"
-	"syscall"
-
-	sequences "github.com/konsorten/go-windows-terminal-sequences"
-)
-
-func initTerminal(w io.Writer) {
-	switch v := w.(type) {
-	case *os.File:
-		sequences.EnableVirtualTerminalProcessing(syscall.Handle(v.Fd()), true)
-	}
-}

vendor/github.com/sirupsen/logrus/text_formatter.go

@@ -12,18 +12,13 @@ import (
 )
 
 const (
-	nocolor = 0
-	red     = 31
-	green   = 32
-	yellow  = 33
-	blue    = 36
-	gray    = 37
+	red    = 31
+	yellow = 33
+	blue   = 36
+	gray   = 37
 )
 
-var (
-	baseTimestamp time.Time
-	emptyFieldMap FieldMap
-)
+var baseTimestamp time.Time
 
 func init() {
 	baseTimestamp = time.Now()
@@ -77,16 +72,18 @@ type TextFormatter struct {
 	//         FieldKeyMsg:   "@message"}}
 	FieldMap FieldMap
 
+	// CallerPrettyfier can be set by the user to modify the content
+	// of the function and file keys in the data when ReportCaller is
+	// activated. If any of the returned value is the empty string the
+	// corresponding key will be removed from fields.
+	CallerPrettyfier func(*runtime.Frame) (function string, file string)
+
 	terminalInitOnce sync.Once
 }
 
 func (f *TextFormatter) init(entry *Entry) {
 	if entry.Logger != nil {
 		f.isTerminal = checkIfTerminal(entry.Logger.Out)
-
-		if f.isTerminal {
-			initTerminal(entry.Logger.Out)
-		}
 	}
 }
 
@@ -118,6 +115,8 @@ func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
 		keys = append(keys, k)
 	}
 
+	var funcVal, fileVal string
+
 	fixedKeys := make([]string, 0, 4+len(data))
 	if !f.DisableTimestamp {
 		fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyTime))
@@ -130,8 +129,19 @@ func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
 		fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyLogrusError))
 	}
 	if entry.HasCaller() {
-		fixedKeys = append(fixedKeys,
-			f.FieldMap.resolve(FieldKeyFunc), f.FieldMap.resolve(FieldKeyFile))
+		if f.CallerPrettyfier != nil {
+			funcVal, fileVal = f.CallerPrettyfier(entry.Caller)
+		} else {
+			funcVal = entry.Caller.Function
+			fileVal = fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
+		}
+
+		if funcVal != "" {
+			fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyFunc))
+		}
+		if fileVal != "" {
+			fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyFile))
+		}
 	}
 
 	if !f.DisableSorting {
@@ -166,6 +176,7 @@ func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
 	if f.isColored() {
 		f.printColored(b, entry, keys, data, timestampFormat)
 	} else {
+
 		for _, key := range fixedKeys {
 			var value interface{}
 			switch {
@@ -178,9 +189,9 @@ func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
 			case key == f.FieldMap.resolve(FieldKeyLogrusError):
 				value = entry.err
 			case key == f.FieldMap.resolve(FieldKeyFunc) && entry.HasCaller():
-				value = entry.Caller.Function
+				value = funcVal
 			case key == f.FieldMap.resolve(FieldKeyFile) && entry.HasCaller():
-				value = fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
+				value = fileVal
 			default:
 				value = data[key]
 			}
@@ -215,10 +226,21 @@ func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []strin
 	entry.Message = strings.TrimSuffix(entry.Message, "\n")
 
 	caller := ""
-
 	if entry.HasCaller() {
-		caller = fmt.Sprintf("%s:%d %s()",
-			entry.Caller.File, entry.Caller.Line, entry.Caller.Function)
+		funcVal := fmt.Sprintf("%s()", entry.Caller.Function)
+		fileVal := fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
+
+		if f.CallerPrettyfier != nil {
+			funcVal, fileVal = f.CallerPrettyfier(entry.Caller)
+		}
+
+		if fileVal == "" {
+			caller = funcVal
+		} else if funcVal == "" {
+			caller = fileVal
+		} else {
+			caller = fileVal + " " + funcVal
+		}
 	}
 
 	if f.DisableTimestamp {

vendor/github.com/spf13/viper/go.mod

@@ -2,23 +2,42 @@ module github.com/spf13/viper
 
 require (
 	github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6 // indirect
+	github.com/coreos/bbolt v1.3.2 // indirect
 	github.com/coreos/etcd v3.3.10+incompatible // indirect
-	github.com/coreos/go-etcd v2.0.0+incompatible // indirect
 	github.com/coreos/go-semver v0.2.0 // indirect
+	github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e // indirect
+	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
 	github.com/fsnotify/fsnotify v1.4.7
+	github.com/gogo/protobuf v1.2.1 // indirect
+	github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef // indirect
+	github.com/google/btree v1.0.0 // indirect
+	github.com/gorilla/websocket v1.4.0 // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0 // indirect
+	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway v1.9.0 // indirect
 	github.com/hashicorp/hcl v1.0.0
+	github.com/jonboulle/clockwork v0.1.0 // indirect
 	github.com/magiconair/properties v1.8.0
 	github.com/mitchellh/mapstructure v1.1.2
 	github.com/pelletier/go-toml v1.2.0
+	github.com/prometheus/client_golang v0.9.3 // indirect
+	github.com/soheilhy/cmux v0.1.4 // indirect
 	github.com/spf13/afero v1.1.2
 	github.com/spf13/cast v1.3.0
 	github.com/spf13/jwalterweatherman v1.0.0
 	github.com/spf13/pflag v1.0.3
 	github.com/stretchr/testify v1.2.2
-	github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8 // indirect
+	github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 // indirect
+	github.com/ugorji/go v1.1.4 // indirect
+	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 // indirect
 	github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77
-	golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9 // indirect
-	golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a // indirect
-	golang.org/x/text v0.3.0 // indirect
+	go.etcd.io/bbolt v1.3.2 // indirect
+	go.uber.org/atomic v1.4.0 // indirect
+	go.uber.org/multierr v1.1.0 // indirect
+	go.uber.org/zap v1.10.0 // indirect
+	golang.org/x/net v0.0.0-20190522155817-f3200d17e092 // indirect
+	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
+	google.golang.org/grpc v1.21.0 // indirect
 	gopkg.in/yaml.v2 v2.2.2
 )

vendor/github.com/spf13/viper/go.sum

@@ -1,25 +1,109 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6 h1:G1bPvciwNyF7IUmKXNt9Ak3m6u9DE1rF+RmtIkBpVdA=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
-github.com/coreos/etcd v3.3.10+incompatible h1:KjVWqrZ5U0wa3CxY2AxlH6/UcB+PK2td1DcsYhA+HRs=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
+github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/coreos/bbolt v1.3.2 h1:wZwiHHUieZCquLkDL0B8UhzreNWsPHooDAG3q34zk0s=
+github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
+github.com/coreos/etcd v3.3.10+incompatible h1:jFneRYjIvLMLhDLCzuTuU4rSJUjRplcJQ7pD7MnhC04=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/go-etcd v2.0.0+incompatible h1:bXhRBIXoTm9BYHS3gE0TtQuyNZyeEMux2sDi4oo5YOo=
-github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
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+golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
+golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190522155817-f3200d17e092 h1:4QSRKanuywn15aTZvI/mIDEgPQpswuFndXpOj3rKEco=
+golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
+golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
+golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 h1:SvFZT6jyqRaOeXpc5h/JSfZenJ2O330aBsf7JfSUXmQ=
+golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8 h1:Nw54tB0rB7hY/N0NQvRW8DG4Yk3Q6T9cu9RcFQDu1tc=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.21.0 h1:G+97AoqBnmZIT91cLG/EkCoK9NSelj64P8bOHHNmGn0=
+google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
+gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

vendor/github.com/spf13/viper/viper.go

@@ -180,10 +180,11 @@ type Viper struct {
 	remoteProviders []*defaultRemoteProvider
 
 	// Name of file to look for inside the path
-	configName string
-	configFile string
-	configType string
-	envPrefix  string
+	configName        string
+	configFile        string
+	configType        string
+	configPermissions os.FileMode
+	envPrefix         string
 
 	automaticEnvApplied bool
 	envKeyReplacer      *strings.Replacer
@@ -210,6 +211,7 @@ func New() *Viper {
 	v := new(Viper)
 	v.keyDelim = "."
 	v.configName = "config"
+	v.configPermissions = os.FileMode(0644)
 	v.fs = afero.NewOsFs()
 	v.config = make(map[string]interface{})
 	v.override = make(map[string]interface{})
@@ -687,6 +689,12 @@ func (v *Viper) Get(key string) interface{} {
 			return cast.ToString(val)
 		case int32, int16, int8, int:
 			return cast.ToInt(val)
+		case uint:
+			return cast.ToUint(val)
+		case uint32:
+			return cast.ToUint32(val)
+		case uint64:
+			return cast.ToUint64(val)
 		case int64:
 			return cast.ToInt64(val)
 		case float64, float32:
@@ -750,6 +758,24 @@ func (v *Viper) GetInt64(key string) int64 {
 	return cast.ToInt64(v.Get(key))
 }
 
+// GetUint returns the value associated with the key as an unsigned integer.
+func GetUint(key string) uint { return v.GetUint(key) }
+func (v *Viper) GetUint(key string) uint {
+	return cast.ToUint(v.Get(key))
+}
+
+// GetUint32 returns the value associated with the key as an unsigned integer.
+func GetUint32(key string) uint32 { return v.GetUint32(key) }
+func (v *Viper) GetUint32(key string) uint32 {
+	return cast.ToUint32(v.Get(key))
+}
+
+// GetUint64 returns the value associated with the key as an unsigned integer.
+func GetUint64(key string) uint64 { return v.GetUint64(key) }
+func (v *Viper) GetUint64(key string) uint64 {
+	return cast.ToUint64(v.Get(key))
+}
+
 // GetFloat64 returns the value associated with the key as a float64.
 func GetFloat64(key string) float64 { return v.GetFloat64(key) }
 func (v *Viper) GetFloat64(key string) float64 {
@@ -811,8 +837,6 @@ func (v *Viper) UnmarshalKey(key string, rawVal interface{}, opts ...DecoderConf
 		return err
 	}
 
-	v.insensitiviseMaps()
-
 	return nil
 }
 
@@ -828,8 +852,6 @@ func (v *Viper) Unmarshal(rawVal interface{}, opts ...DecoderConfigOption) error
 		return err
 	}
 
-	v.insensitiviseMaps()
-
 	return nil
 }
 
@@ -872,8 +894,6 @@ func (v *Viper) UnmarshalExact(rawVal interface{}) error {
 		return err
 	}
 
-	v.insensitiviseMaps()
-
 	return nil
 }
 
@@ -1334,7 +1354,7 @@ func (v *Viper) writeConfig(filename string, force bool) error {
 			return fmt.Errorf("File: %s exists. Use WriteConfig to overwrite.", filename)
 		}
 	}
-	f, err := v.fs.OpenFile(filename, flags, os.FileMode(0644))
+	f, err := v.fs.OpenFile(filename, flags, v.configPermissions)
 	if err != nil {
 		return err
 	}
@@ -1579,13 +1599,6 @@ func (v *Viper) WatchRemoteConfigOnChannel() error {
 	return v.watchKeyValueConfigOnChannel()
 }
 
-func (v *Viper) insensitiviseMaps() {
-	insensitiviseMap(v.config)
-	insensitiviseMap(v.defaults)
-	insensitiviseMap(v.override)
-	insensitiviseMap(v.kvstore)
-}
-
 // Retrieve the first found remote configuration.
 func (v *Viper) getKeyValueConfig() error {
 	if RemoteConfig == nil {
@@ -1778,6 +1791,12 @@ func (v *Viper) SetConfigType(in string) {
 	}
 }
 
+// SetConfigPermissions sets the permissions for the config file.
+func SetConfigPermissions(perm os.FileMode) { v.SetConfigPermissions(perm) }
+func (v *Viper) SetConfigPermissions(perm os.FileMode) {
+	v.configPermissions = perm.Perm()
+}
+
 func (v *Viper) getConfigType() string {
 	if v.configType != "" {
 		return v.configType

vendor/github.com/valyala/fasttemplate/go.mod

@@ -0,0 +1,3 @@
+module github.com/valyala/fasttemplate
+
+require github.com/valyala/bytebufferpool v1.0.0

vendor/github.com/valyala/fasttemplate/go.sum

@@ -0,0 +1,2 @@
+github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
+github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=

vendor/github.com/zfjagann/golang-ring/ring.go

@@ -56,7 +56,7 @@ func (r *Ring) ContentSize() int {
 	} else {
 		difference := (r.head - r.tail)
 		if difference < 0 {
-			difference = -difference
+			difference += r.capacity()
 		}
 		return difference + 1
 	}

vendor/go.uber.org/atomic/.travis.yml

@@ -3,9 +3,13 @@ language: go
 go_import_path: go.uber.org/atomic
 
 go:
-  - 1.7
-  - 1.8
-  - 1.9
+  - 1.11.x
+  - 1.12.x
+
+matrix:
+  include:
+  - go: 1.12.x
+    env: NO_TEST=yes LINT=yes
 
 cache:
   directories:
@@ -15,9 +19,9 @@ install:
   - make install_ci
 
 script:
-  - make test_ci
-  - scripts/test-ubergo.sh
-  - make lint
+  - test -n "$NO_TEST" || make test_ci
+  - test -n "$NO_TEST" || scripts/test-ubergo.sh
+  - test -z "$LINT" || make install_lint lint
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)

vendor/go.uber.org/atomic/Makefile

@@ -1,24 +1,13 @@
-PACKAGES := $(shell glide nv)
 # Many Go tools take file globs or directories as arguments instead of packages.
 PACKAGE_FILES ?= *.go
 
-
-# The linting tools evolve with each Go version, so run them only on the latest
-# stable release.
-GO_VERSION := $(shell go version | cut -d " " -f 3)
-GO_MINOR_VERSION := $(word 2,$(subst ., ,$(GO_VERSION)))
-LINTABLE_MINOR_VERSIONS := 7 8
-ifneq ($(filter $(LINTABLE_MINOR_VERSIONS),$(GO_MINOR_VERSION)),)
-SHOULD_LINT := true
-endif
-
-
+# For pre go1.6
 export GO15VENDOREXPERIMENT=1
 
 
 .PHONY: build
 build:
-	go build -i $(PACKAGES)
+	go build -i ./...
 
 
 .PHONY: install
@@ -29,7 +18,7 @@ install:
 
 .PHONY: test
 test:
-	go test -cover -race $(PACKAGES)
+	go test -cover -race ./...
 
 
 .PHONY: install_ci
@@ -37,26 +26,24 @@ install_ci: install
 	go get github.com/wadey/gocovmerge
 	go get github.com/mattn/goveralls
 	go get golang.org/x/tools/cmd/cover
-ifdef SHOULD_LINT
-	go get github.com/golang/lint/golint
-endif
+
+.PHONY: install_lint
+install_lint:
+	go get golang.org/x/lint/golint
+
 
 .PHONY: lint
 lint:
-ifdef SHOULD_LINT
 	@rm -rf lint.log
 	@echo "Checking formatting..."
 	@gofmt -d -s $(PACKAGE_FILES) 2>&1 | tee lint.log
 	@echo "Checking vet..."
-	@$(foreach dir,$(PACKAGE_FILES),go tool vet $(dir) 2>&1 | tee -a lint.log;)
+	@go vet ./... 2>&1 | tee -a lint.log;)
 	@echo "Checking lint..."
-	@$(foreach dir,$(PKGS),golint $(dir) 2>&1 | tee -a lint.log;)
+	@golint $$(go list ./...) 2>&1 | tee -a lint.log
 	@echo "Checking for unresolved FIXMEs..."
 	@git grep -i fixme | grep -v -e vendor -e Makefile | tee -a lint.log
 	@[ ! -s lint.log ]
-else
-	@echo "Skipping linters on" $(GO_VERSION)
-endif
 
 
 .PHONY: test_ci

vendor/go.uber.org/atomic/README.md

@@ -23,13 +23,13 @@ See the [documentation][doc] for a complete API specification.
 ## Development Status
 Stable.
 
-<hr>
+___
 Released under the [MIT License](LICENSE.txt).
 
 [doc-img]: https://godoc.org/github.com/uber-go/atomic?status.svg
 [doc]: https://godoc.org/go.uber.org/atomic
-[ci-img]: https://travis-ci.org/uber-go/atomic.svg?branch=master
-[ci]: https://travis-ci.org/uber-go/atomic
+[ci-img]: https://travis-ci.com/uber-go/atomic.svg?branch=master
+[ci]: https://travis-ci.com/uber-go/atomic
 [cov-img]: https://codecov.io/gh/uber-go/atomic/branch/master/graph/badge.svg
 [cov]: https://codecov.io/gh/uber-go/atomic
 [reportcard-img]: https://goreportcard.com/badge/go.uber.org/atomic

vendor/go.uber.org/atomic/error.go

@@ -0,0 +1,55 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+// Error is an atomic type-safe wrapper around Value for errors
+type Error struct{ v Value }
+
+// errorHolder is non-nil holder for error object.
+// atomic.Value panics on saving nil object, so err object needs to be
+// wrapped with valid object first.
+type errorHolder struct{ err error }
+
+// NewError creates new atomic error object
+func NewError(err error) *Error {
+	e := &Error{}
+	if err != nil {
+		e.Store(err)
+	}
+	return e
+}
+
+// Load atomically loads the wrapped error
+func (e *Error) Load() error {
+	v := e.v.Load()
+	if v == nil {
+		return nil
+	}
+
+	eh := v.(errorHolder)
+	return eh.err
+}
+
+// Store atomically stores error.
+// NOTE: a holder object is allocated on each Store call.
+func (e *Error) Store(err error) {
+	e.v.Store(errorHolder{err: err})
+}

vendor/go.uber.org/zap/.travis.yml

@@ -1,8 +1,8 @@
 language: go
 sudo: false
 go:
-  - 1.9.x
-  - 1.10.x
+  - 1.11.x
+  - 1.12.x
 go_import_path: go.uber.org/zap
 env:
   global: