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Apache License
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// Package gomatrix implements the Matrix Client-Server API.
//
// Specification can be found at http://matrix.org/docs/spec/client_server/r0.2.0.html
package gomatrix
import (
"bytes"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"path"
"strconv"
"sync"
"time"
)
// Client represents a Matrix client.
type Client struct {
HomeserverURL *url.URL // The base homeserver URL
Prefix string // The API prefix eg '/_matrix/client/r0'
UserID string // The user ID of the client. Used for forming HTTP paths which use the client's user ID.
AccessToken string // The access_token for the client.
Client *http.Client // The underlying HTTP client which will be used to make HTTP requests.
Syncer Syncer // The thing which can process /sync responses
Store Storer // The thing which can store rooms/tokens/ids
// The ?user_id= query parameter for application services. This must be set *prior* to calling a method. If this is empty,
// no user_id parameter will be sent.
// See http://matrix.org/docs/spec/application_service/unstable.html#identity-assertion
AppServiceUserID string
syncingMutex sync.Mutex // protects syncingID
syncingID uint32 // Identifies the current Sync. Only one Sync can be active at any given time.
}
// HTTPError An HTTP Error response, which may wrap an underlying native Go Error.
type HTTPError struct {
WrappedError error
Message string
Code int
}
func (e HTTPError) Error() string {
var wrappedErrMsg string
if e.WrappedError != nil {
wrappedErrMsg = e.WrappedError.Error()
}
return fmt.Sprintf("msg=%s code=%d wrapped=%s", e.Message, e.Code, wrappedErrMsg)
}
// BuildURL builds a URL with the Client's homserver/prefix/access_token set already.
func (cli *Client) BuildURL(urlPath ...string) string {
ps := []string{cli.Prefix}
for _, p := range urlPath {
ps = append(ps, p)
}
return cli.BuildBaseURL(ps...)
}
// BuildBaseURL builds a URL with the Client's homeserver/access_token set already. You must
// supply the prefix in the path.
func (cli *Client) BuildBaseURL(urlPath ...string) string {
// copy the URL. Purposefully ignore error as the input is from a valid URL already
hsURL, _ := url.Parse(cli.HomeserverURL.String())
parts := []string{hsURL.Path}
parts = append(parts, urlPath...)
hsURL.Path = path.Join(parts...)
query := hsURL.Query()
if cli.AccessToken != "" {
query.Set("access_token", cli.AccessToken)
}
if cli.AppServiceUserID != "" {
query.Set("user_id", cli.AppServiceUserID)
}
hsURL.RawQuery = query.Encode()
return hsURL.String()
}
// BuildURLWithQuery builds a URL with query parameters in addition to the Client's homeserver/prefix/access_token set already.
func (cli *Client) BuildURLWithQuery(urlPath []string, urlQuery map[string]string) string {
u, _ := url.Parse(cli.BuildURL(urlPath...))
q := u.Query()
for k, v := range urlQuery {
q.Set(k, v)
}
u.RawQuery = q.Encode()
return u.String()
}
// SetCredentials sets the user ID and access token on this client instance.
func (cli *Client) SetCredentials(userID, accessToken string) {
cli.AccessToken = accessToken
cli.UserID = userID
}
// ClearCredentials removes the user ID and access token on this client instance.
func (cli *Client) ClearCredentials() {
cli.AccessToken = ""
cli.UserID = ""
}
// Sync starts syncing with the provided Homeserver. If Sync() is called twice then the first sync will be stopped and the
// error will be nil.
//
// This function will block until a fatal /sync error occurs, so it should almost always be started as a new goroutine.
// Fatal sync errors can be caused by:
// - The failure to create a filter.
// - Client.Syncer.OnFailedSync returning an error in response to a failed sync.
// - Client.Syncer.ProcessResponse returning an error.
// If you wish to continue retrying in spite of these fatal errors, call Sync() again.
func (cli *Client) Sync() error {
// Mark the client as syncing.
// We will keep syncing until the syncing state changes. Either because
// Sync is called or StopSync is called.
syncingID := cli.incrementSyncingID()
nextBatch := cli.Store.LoadNextBatch(cli.UserID)
filterID := cli.Store.LoadFilterID(cli.UserID)
if filterID == "" {
filterJSON := cli.Syncer.GetFilterJSON(cli.UserID)
resFilter, err := cli.CreateFilter(filterJSON)
if err != nil {
return err
}
filterID = resFilter.FilterID
cli.Store.SaveFilterID(cli.UserID, filterID)
}
for {
resSync, err := cli.SyncRequest(30000, nextBatch, filterID, false, "")
if err != nil {
duration, err2 := cli.Syncer.OnFailedSync(resSync, err)
if err2 != nil {
return err2
}
time.Sleep(duration)
continue
}
// Check that the syncing state hasn't changed
// Either because we've stopped syncing or another sync has been started.
// We discard the response from our sync.
if cli.getSyncingID() != syncingID {
return nil
}
// Save the token now *before* processing it. This means it's possible
// to not process some events, but it means that we won't get constantly stuck processing
// a malformed/buggy event which keeps making us panic.
cli.Store.SaveNextBatch(cli.UserID, resSync.NextBatch)
if err = cli.Syncer.ProcessResponse(resSync, nextBatch); err != nil {
return err
}
nextBatch = resSync.NextBatch
}
}
func (cli *Client) incrementSyncingID() uint32 {
cli.syncingMutex.Lock()
defer cli.syncingMutex.Unlock()
cli.syncingID++
return cli.syncingID
}
func (cli *Client) getSyncingID() uint32 {
cli.syncingMutex.Lock()
defer cli.syncingMutex.Unlock()
return cli.syncingID
}
// StopSync stops the ongoing sync started by Sync.
func (cli *Client) StopSync() {
// Advance the syncing state so that any running Syncs will terminate.
cli.incrementSyncingID()
}
// MakeRequest makes a JSON HTTP request to the given URL.
// If "resBody" is not nil, the response body will be json.Unmarshalled into it.
//
// Returns the HTTP body as bytes on 2xx with a nil error. Returns an error if the response is not 2xx along
// with the HTTP body bytes if it got that far. This error is an HTTPError which includes the returned
// HTTP status code and possibly a RespError as the WrappedError, if the HTTP body could be decoded as a RespError.
func (cli *Client) MakeRequest(method string, httpURL string, reqBody interface{}, resBody interface{}) ([]byte, error) {
var req *http.Request
var err error
if reqBody != nil {
var jsonStr []byte
jsonStr, err = json.Marshal(reqBody)
if err != nil {
return nil, err
}
req, err = http.NewRequest(method, httpURL, bytes.NewBuffer(jsonStr))
} else {
req, err = http.NewRequest(method, httpURL, nil)
}
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/json")
res, err := cli.Client.Do(req)
if res != nil {
defer res.Body.Close()
}
if err != nil {
return nil, err
}
contents, err := ioutil.ReadAll(res.Body)
if res.StatusCode/100 != 2 { // not 2xx
var wrap error
var respErr RespError
if _ = json.Unmarshal(contents, &respErr); respErr.ErrCode != "" {
wrap = respErr
}
// If we failed to decode as RespError, don't just drop the HTTP body, include it in the
// HTTP error instead (e.g proxy errors which return HTML).
msg := "Failed to " + method + " JSON to " + req.URL.Path
if wrap == nil {
msg = msg + ": " + string(contents)
}
return contents, HTTPError{
Code: res.StatusCode,
Message: msg,
WrappedError: wrap,
}
}
if err != nil {
return nil, err
}
if resBody != nil {
if err = json.Unmarshal(contents, &resBody); err != nil {
return nil, err
}
}
return contents, nil
}
// CreateFilter makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-user-userid-filter
func (cli *Client) CreateFilter(filter json.RawMessage) (resp *RespCreateFilter, err error) {
urlPath := cli.BuildURL("user", cli.UserID, "filter")
_, err = cli.MakeRequest("POST", urlPath, &filter, &resp)
return
}
// SyncRequest makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-sync
func (cli *Client) SyncRequest(timeout int, since, filterID string, fullState bool, setPresence string) (resp *RespSync, err error) {
query := map[string]string{
"timeout": strconv.Itoa(timeout),
}
if since != "" {
query["since"] = since
}
if filterID != "" {
query["filter"] = filterID
}
if setPresence != "" {
query["set_presence"] = setPresence
}
if fullState {
query["full_state"] = "true"
}
urlPath := cli.BuildURLWithQuery([]string{"sync"}, query)
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
func (cli *Client) register(u string, req *ReqRegister) (resp *RespRegister, uiaResp *RespUserInteractive, err error) {
var bodyBytes []byte
bodyBytes, err = cli.MakeRequest("POST", u, req, nil)
if err != nil {
httpErr, ok := err.(HTTPError)
if !ok { // network error
return
}
if httpErr.Code == 401 {
// body should be RespUserInteractive, if it isn't, fail with the error
err = json.Unmarshal(bodyBytes, &uiaResp)
return
}
return
}
// body should be RespRegister
err = json.Unmarshal(bodyBytes, &resp)
return
}
// Register makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
//
// Registers with kind=user. For kind=guest, see RegisterGuest.
func (cli *Client) Register(req *ReqRegister) (*RespRegister, *RespUserInteractive, error) {
u := cli.BuildURL("register")
return cli.register(u, req)
}
// RegisterGuest makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
// with kind=guest.
//
// For kind=user, see Register.
func (cli *Client) RegisterGuest(req *ReqRegister) (*RespRegister, *RespUserInteractive, error) {
query := map[string]string{
"kind": "guest",
}
u := cli.BuildURLWithQuery([]string{"register"}, query)
return cli.register(u, req)
}
// RegisterDummy performs m.login.dummy registration according to https://matrix.org/docs/spec/client_server/r0.2.0.html#dummy-auth
//
// Only a username and password need to be provided on the ReqRegister struct. Most local/developer homeservers will allow registration
// this way. If the homeserver does not, an error is returned.
//
// This does not set credentials on the client instance. See SetCredentials() instead.
//
// res, err := cli.RegisterDummy(&gomatrix.ReqRegister{
// Username: "alice",
// Password: "wonderland",
// })
// if err != nil {
// panic(err)
// }
// token := res.AccessToken
func (cli *Client) RegisterDummy(req *ReqRegister) (*RespRegister, error) {
res, uia, err := cli.Register(req)
if err != nil && uia == nil {
return nil, err
}
if uia != nil && uia.HasSingleStageFlow("m.login.dummy") {
req.Auth = struct {
Type string `json:"type"`
Session string `json:"session,omitempty"`
}{"m.login.dummy", uia.Session}
res, _, err = cli.Register(req)
if err != nil {
return nil, err
}
}
if res == nil {
return nil, fmt.Errorf("registration failed: does this server support m.login.dummy?")
}
return res, nil
}
// Login a user to the homeserver according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-login
// This does not set credentials on this client instance. See SetCredentials() instead.
func (cli *Client) Login(req *ReqLogin) (resp *RespLogin, err error) {
urlPath := cli.BuildURL("login")
_, err = cli.MakeRequest("POST", urlPath, req, &resp)
return
}
// Logout the current user. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-logout
// This does not clear the credentials from the client instance. See ClearCredentials() instead.
func (cli *Client) Logout() (resp *RespLogout, err error) {
urlPath := cli.BuildURL("logout")
_, err = cli.MakeRequest("POST", urlPath, nil, &resp)
return
}
// Versions returns the list of supported Matrix versions on this homeserver. See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-versions
func (cli *Client) Versions() (resp *RespVersions, err error) {
urlPath := cli.BuildBaseURL("_matrix", "client", "versions")
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// JoinRoom joins the client to a room ID or alias. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-join-roomidoralias
//
// If serverName is specified, this will be added as a query param to instruct the homeserver to join via that server. If content is specified, it will
// be JSON encoded and used as the request body.
func (cli *Client) JoinRoom(roomIDorAlias, serverName string, content interface{}) (resp *RespJoinRoom, err error) {
var urlPath string
if serverName != "" {
urlPath = cli.BuildURLWithQuery([]string{"join", roomIDorAlias}, map[string]string{
"server_name": serverName,
})
} else {
urlPath = cli.BuildURL("join", roomIDorAlias)
}
_, err = cli.MakeRequest("POST", urlPath, content, &resp)
return
}
// GetDisplayName returns the display name of the user from the specified MXID. See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
func (cli *Client) GetDisplayName(mxid string) (resp *RespUserDisplayName, err error) {
urlPath := cli.BuildURL("profile", mxid, "displayname")
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// GetOwnDisplayName returns the user's display name. See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
func (cli *Client) GetOwnDisplayName() (resp *RespUserDisplayName, err error) {
urlPath := cli.BuildURL("profile", cli.UserID, "displayname")
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// SetDisplayName sets the user's profile display name. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-profile-userid-displayname
func (cli *Client) SetDisplayName(displayName string) (err error) {
urlPath := cli.BuildURL("profile", cli.UserID, "displayname")
s := struct {
DisplayName string `json:"displayname"`
}{displayName}
_, err = cli.MakeRequest("PUT", urlPath, &s, nil)
return
}
// GetAvatarURL gets the user's avatar URL. See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-avatar-url
func (cli *Client) GetAvatarURL() (url string, err error) {
urlPath := cli.BuildURL("profile", cli.UserID, "avatar_url")
s := struct {
AvatarURL string `json:"avatar_url"`
}{}
_, err = cli.MakeRequest("GET", urlPath, nil, &s)
if err != nil {
return "", err
}
return s.AvatarURL, nil
}
// SetAvatarURL sets the user's avatar URL. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-profile-userid-avatar-url
func (cli *Client) SetAvatarURL(url string) (err error) {
urlPath := cli.BuildURL("profile", cli.UserID, "avatar_url")
s := struct {
AvatarURL string `json:"avatar_url"`
}{url}
_, err = cli.MakeRequest("PUT", urlPath, &s, nil)
if err != nil {
return err
}
return nil
}
// SendMessageEvent sends a message event into a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-send-eventtype-txnid
// contentJSON should be a pointer to something that can be encoded as JSON using json.Marshal.
func (cli *Client) SendMessageEvent(roomID string, eventType string, contentJSON interface{}) (resp *RespSendEvent, err error) {
txnID := txnID()
urlPath := cli.BuildURL("rooms", roomID, "send", eventType, txnID)
_, err = cli.MakeRequest("PUT", urlPath, contentJSON, &resp)
return
}
// SendStateEvent sends a state event into a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-state-eventtype-statekey
// contentJSON should be a pointer to something that can be encoded as JSON using json.Marshal.
func (cli *Client) SendStateEvent(roomID, eventType, stateKey string, contentJSON interface{}) (resp *RespSendEvent, err error) {
urlPath := cli.BuildURL("rooms", roomID, "state", eventType, stateKey)
_, err = cli.MakeRequest("PUT", urlPath, contentJSON, &resp)
return
}
// SendText sends an m.room.message event into the given room with a msgtype of m.text
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#m-text
func (cli *Client) SendText(roomID, text string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
TextMessage{"m.text", text})
}
// SendImage sends an m.room.message event into the given room with a msgtype of m.image
// See https://matrix.org/docs/spec/client_server/r0.2.0.html#m-image
func (cli *Client) SendImage(roomID, body, url string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
ImageMessage{
MsgType: "m.image",
Body: body,
URL: url,
})
}
// SendVideo sends an m.room.message event into the given room with a msgtype of m.video
// See https://matrix.org/docs/spec/client_server/r0.2.0.html#m-video
func (cli *Client) SendVideo(roomID, body, url string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
VideoMessage{
MsgType: "m.video",
Body: body,
URL: url,
})
}
// SendNotice sends an m.room.message event into the given room with a msgtype of m.notice
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#m-notice
func (cli *Client) SendNotice(roomID, text string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
TextMessage{"m.notice", text})
}
// RedactEvent redacts the given event. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
func (cli *Client) RedactEvent(roomID, eventID string, req *ReqRedact) (resp *RespSendEvent, err error) {
txnID := txnID()
urlPath := cli.BuildURL("rooms", roomID, "redact", eventID, txnID)
_, err = cli.MakeRequest("PUT", urlPath, req, &resp)
return
}
// CreateRoom creates a new Matrix room. See https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
// resp, err := cli.CreateRoom(&gomatrix.ReqCreateRoom{
// Preset: "public_chat",
// })
// fmt.Println("Room:", resp.RoomID)
func (cli *Client) CreateRoom(req *ReqCreateRoom) (resp *RespCreateRoom, err error) {
urlPath := cli.BuildURL("createRoom")
_, err = cli.MakeRequest("POST", urlPath, req, &resp)
return
}
// LeaveRoom leaves the given room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-leave
func (cli *Client) LeaveRoom(roomID string) (resp *RespLeaveRoom, err error) {
u := cli.BuildURL("rooms", roomID, "leave")
_, err = cli.MakeRequest("POST", u, struct{}{}, &resp)
return
}
// ForgetRoom forgets a room entirely. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-forget
func (cli *Client) ForgetRoom(roomID string) (resp *RespForgetRoom, err error) {
u := cli.BuildURL("rooms", roomID, "forget")
_, err = cli.MakeRequest("POST", u, struct{}{}, &resp)
return
}
// InviteUser invites a user to a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
func (cli *Client) InviteUser(roomID string, req *ReqInviteUser) (resp *RespInviteUser, err error) {
u := cli.BuildURL("rooms", roomID, "invite")
_, err = cli.MakeRequest("POST", u, struct{}{}, &resp)
return
}
// InviteUserByThirdParty invites a third-party identifier to a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#invite-by-third-party-id-endpoint
func (cli *Client) InviteUserByThirdParty(roomID string, req *ReqInvite3PID) (resp *RespInviteUser, err error) {
u := cli.BuildURL("rooms", roomID, "invite")
_, err = cli.MakeRequest("POST", u, req, &resp)
return
}
// KickUser kicks a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-kick
func (cli *Client) KickUser(roomID string, req *ReqKickUser) (resp *RespKickUser, err error) {
u := cli.BuildURL("rooms", roomID, "kick")
_, err = cli.MakeRequest("POST", u, req, &resp)
return
}
// BanUser bans a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-ban
func (cli *Client) BanUser(roomID string, req *ReqBanUser) (resp *RespBanUser, err error) {
u := cli.BuildURL("rooms", roomID, "ban")
_, err = cli.MakeRequest("POST", u, req, &resp)
return
}
// UnbanUser unbans a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-unban
func (cli *Client) UnbanUser(roomID string, req *ReqUnbanUser) (resp *RespUnbanUser, err error) {
u := cli.BuildURL("rooms", roomID, "unban")
_, err = cli.MakeRequest("POST", u, req, &resp)
return
}
// UserTyping sets the typing status of the user. See https://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-typing-userid
func (cli *Client) UserTyping(roomID string, typing bool, timeout int64) (resp *RespTyping, err error) {
req := ReqTyping{Typing: typing, Timeout: timeout}
u := cli.BuildURL("rooms", roomID, "typing", cli.UserID)
_, err = cli.MakeRequest("PUT", u, req, &resp)
return
}
// StateEvent gets a single state event in a room. It will attempt to JSON unmarshal into the given "outContent" struct with
// the HTTP response body, or return an error.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-state-eventtype-statekey
func (cli *Client) StateEvent(roomID, eventType, stateKey string, outContent interface{}) (err error) {
u := cli.BuildURL("rooms", roomID, "state", eventType, stateKey)
_, err = cli.MakeRequest("GET", u, nil, outContent)
return
}
// UploadLink uploads an HTTP URL and then returns an MXC URI.
func (cli *Client) UploadLink(link string) (*RespMediaUpload, error) {
res, err := cli.Client.Get(link)
if res != nil {
defer res.Body.Close()
}
if err != nil {
return nil, err
}
return cli.UploadToContentRepo(res.Body, res.Header.Get("Content-Type"), res.ContentLength)
}
// UploadToContentRepo uploads the given bytes to the content repository and returns an MXC URI.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-media-r0-upload
func (cli *Client) UploadToContentRepo(content io.Reader, contentType string, contentLength int64) (*RespMediaUpload, error) {
req, err := http.NewRequest("POST", cli.BuildBaseURL("_matrix/media/r0/upload"), content)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", contentType)
req.ContentLength = contentLength
res, err := cli.Client.Do(req)
if res != nil {
defer res.Body.Close()
}
if err != nil {
return nil, err
}
if res.StatusCode != 200 {
contents, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, HTTPError{
Message: "Upload request failed - Failed to read response body: " + err.Error(),
Code: res.StatusCode,
}
}
return nil, HTTPError{
Message: "Upload request failed: " + string(contents),
Code: res.StatusCode,
}
}
var m RespMediaUpload
if err := json.NewDecoder(res.Body).Decode(&m); err != nil {
return nil, err
}
return &m, nil
}
// JoinedMembers returns a map of joined room members. See TODO-SPEC. https://github.com/matrix-org/synapse/pull/1680
//
// In general, usage of this API is discouraged in favour of /sync, as calling this API can race with incoming membership changes.
// This API is primarily designed for application services which may want to efficiently look up joined members in a room.
func (cli *Client) JoinedMembers(roomID string) (resp *RespJoinedMembers, err error) {
u := cli.BuildURL("rooms", roomID, "joined_members")
_, err = cli.MakeRequest("GET", u, nil, &resp)
return
}
// JoinedRooms returns a list of rooms which the client is joined to. See TODO-SPEC. https://github.com/matrix-org/synapse/pull/1680
//
// In general, usage of this API is discouraged in favour of /sync, as calling this API can race with incoming membership changes.
// This API is primarily designed for application services which may want to efficiently look up joined rooms.
func (cli *Client) JoinedRooms() (resp *RespJoinedRooms, err error) {
u := cli.BuildURL("joined_rooms")
_, err = cli.MakeRequest("GET", u, nil, &resp)
return
}
// Messages returns a list of message and state events for a room. It uses
// pagination query parameters to paginate history in the room.
// See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-messages
func (cli *Client) Messages(roomID, from, to string, dir rune, limit int) (resp *RespMessages, err error) {
query := map[string]string{
"from": from,
"dir": string(dir),
}
if to != "" {
query["to"] = to
}
if limit != 0 {
query["limit"] = strconv.Itoa(limit)
}
urlPath := cli.BuildURLWithQuery([]string{"rooms", roomID, "messages"}, query)
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// TurnServer returns turn server details and credentials for the client to use when initiating calls.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-voip-turnserver
func (cli *Client) TurnServer() (resp *RespTurnServer, err error) {
urlPath := cli.BuildURL("voip", "turnServer")
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
func txnID() string {
return "go" + strconv.FormatInt(time.Now().UnixNano(), 10)
}
// NewClient creates a new Matrix Client ready for syncing
func NewClient(homeserverURL, userID, accessToken string) (*Client, error) {
hsURL, err := url.Parse(homeserverURL)
if err != nil {
return nil, err
}
// By default, use an in-memory store which will never save filter ids / next batch tokens to disk.
// The client will work with this storer: it just won't remember across restarts.
// In practice, a database backend should be used.
store := NewInMemoryStore()
cli := Client{
AccessToken: accessToken,
HomeserverURL: hsURL,
UserID: userID,
Prefix: "/_matrix/client/r0",
Syncer: NewDefaultSyncer(userID, store),
Store: store,
}
// By default, use the default HTTP client.
cli.Client = http.DefaultClient
return &cli, nil
}

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package gomatrix
import (
"html"
"regexp"
)
// Event represents a single Matrix event.
type Event struct {
StateKey *string `json:"state_key,omitempty"` // The state key for the event. Only present on State Events.
Sender string `json:"sender"` // The user ID of the sender of the event
Type string `json:"type"` // The event type
Timestamp int64 `json:"origin_server_ts"` // The unix timestamp when this message was sent by the origin server
ID string `json:"event_id"` // The unique ID of this event
RoomID string `json:"room_id"` // The room the event was sent to. May be nil (e.g. for presence)
Content map[string]interface{} `json:"content"` // The JSON content of the event.
Redacts string `json:"redacts,omitempty"` // The event ID that was redacted if a m.room.redaction event
}
// Body returns the value of the "body" key in the event content if it is
// present and is a string.
func (event *Event) Body() (body string, ok bool) {
value, exists := event.Content["body"]
if !exists {
return
}
body, ok = value.(string)
return
}
// MessageType returns the value of the "msgtype" key in the event content if
// it is present and is a string.
func (event *Event) MessageType() (msgtype string, ok bool) {
value, exists := event.Content["msgtype"]
if !exists {
return
}
msgtype, ok = value.(string)
return
}
// TextMessage is the contents of a Matrix formated message event.
type TextMessage struct {
MsgType string `json:"msgtype"`
Body string `json:"body"`
}
// ImageInfo contains info about an image - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-image
type ImageInfo struct {
Height uint `json:"h,omitempty"`
Width uint `json:"w,omitempty"`
Mimetype string `json:"mimetype,omitempty"`
Size uint `json:"size,omitempty"`
}
// VideoInfo contains info about a video - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-video
type VideoInfo struct {
Mimetype string `json:"mimetype,omitempty"`
ThumbnailInfo ImageInfo `json:"thumbnail_info"`
ThumbnailURL string `json:"thumbnail_url,omitempty"`
Height uint `json:"h,omitempty"`
Width uint `json:"w,omitempty"`
Duration uint `json:"duration,omitempty"`
Size uint `json:"size,omitempty"`
}
// VideoMessage is an m.video - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-video
type VideoMessage struct {
MsgType string `json:"msgtype"`
Body string `json:"body"`
URL string `json:"url"`
Info VideoInfo `json:"info"`
}
// ImageMessage is an m.image event
type ImageMessage struct {
MsgType string `json:"msgtype"`
Body string `json:"body"`
URL string `json:"url"`
Info ImageInfo `json:"info"`
}
// An HTMLMessage is the contents of a Matrix HTML formated message event.
type HTMLMessage struct {
Body string `json:"body"`
MsgType string `json:"msgtype"`
Format string `json:"format"`
FormattedBody string `json:"formatted_body"`
}
var htmlRegex = regexp.MustCompile("<[^<]+?>")
// GetHTMLMessage returns an HTMLMessage with the body set to a stripped version of the provided HTML, in addition
// to the provided HTML.
func GetHTMLMessage(msgtype, htmlText string) HTMLMessage {
return HTMLMessage{
Body: html.UnescapeString(htmlRegex.ReplaceAllLiteralString(htmlText, "")),
MsgType: msgtype,
Format: "org.matrix.custom.html",
FormattedBody: htmlText,
}
}

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// Copyright 2017 Jan Christian Grünhage
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gomatrix
//Filter is used by clients to specify how the server should filter responses to e.g. sync requests
//Specified by: https://matrix.org/docs/spec/client_server/r0.2.0.html#filtering
type Filter struct {
AccountData FilterPart `json:"account_data,omitempty"`
EventFields []string `json:"event_fields,omitempty"`
EventFormat string `json:"event_format,omitempty"`
Presence FilterPart `json:"presence,omitempty"`
Room struct {
AccountData FilterPart `json:"account_data,omitempty"`
Ephemeral FilterPart `json:"ephemeral,omitempty"`
IncludeLeave bool `json:"include_leave,omitempty"`
NotRooms []string `json:"not_rooms,omitempty"`
Rooms []string `json:"rooms,omitempty"`
State FilterPart `json:"state,omitempty"`
Timeline FilterPart `json:"timeline,omitempty"`
} `json:"room,omitempty"`
}
type FilterPart struct {
NotRooms []string `json:"not_rooms,omitempty"`
Rooms []string `json:"rooms,omitempty"`
Limit *int `json:"limit,omitempty"`
NotSenders []string `json:"not_senders,omitempty"`
NotTypes []string `json:"not_types,omitempty"`
Senders []string `json:"senders,omitempty"`
Types []string `json:"types,omitempty"`
}

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package gomatrix
// ReqRegister is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
type ReqRegister struct {
Username string `json:"username,omitempty"`
BindEmail bool `json:"bind_email,omitempty"`
Password string `json:"password,omitempty"`
DeviceID string `json:"device_id,omitempty"`
InitialDeviceDisplayName string `json:"initial_device_display_name"`
Auth interface{} `json:"auth,omitempty"`
}
// ReqLogin is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-login
type ReqLogin struct {
Type string `json:"type"`
Password string `json:"password,omitempty"`
Medium string `json:"medium,omitempty"`
User string `json:"user,omitempty"`
Address string `json:"address,omitempty"`
Token string `json:"token,omitempty"`
DeviceID string `json:"device_id,omitempty"`
InitialDeviceDisplayName string `json:"initial_device_display_name,omitempty"`
}
// ReqCreateRoom is the JSON request for https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
type ReqCreateRoom struct {
Visibility string `json:"visibility,omitempty"`
RoomAliasName string `json:"room_alias_name,omitempty"`
Name string `json:"name,omitempty"`
Topic string `json:"topic,omitempty"`
Invite []string `json:"invite,omitempty"`
Invite3PID []ReqInvite3PID `json:"invite_3pid,omitempty"`
CreationContent map[string]interface{} `json:"creation_content,omitempty"`
InitialState []Event `json:"initial_state,omitempty"`
Preset string `json:"preset,omitempty"`
IsDirect bool `json:"is_direct,omitempty"`
}
// ReqRedact is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
type ReqRedact struct {
Reason string `json:"reason,omitempty"`
}
// ReqInvite3PID is the JSON request for https://matrix.org/docs/spec/client_server/r0.2.0.html#id57
// It is also a JSON object used in https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
type ReqInvite3PID struct {
IDServer string `json:"id_server"`
Medium string `json:"medium"`
Address string `json:"address"`
}
// ReqInviteUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
type ReqInviteUser struct {
UserID string `json:"user_id"`
}
// ReqKickUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-kick
type ReqKickUser struct {
Reason string `json:"reason,omitempty"`
UserID string `json:"user_id"`
}
// ReqBanUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-ban
type ReqBanUser struct {
Reason string `json:"reason,omitempty"`
UserID string `json:"user_id"`
}
// ReqUnbanUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-unban
type ReqUnbanUser struct {
UserID string `json:"user_id"`
}
// ReqTyping is the JSON request for https://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-typing-userid
type ReqTyping struct {
Typing bool `json:"typing"`
Timeout int64 `json:"timeout"`
}

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package gomatrix
// RespError is the standard JSON error response from Homeservers. It also implements the Golang "error" interface.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#api-standards
type RespError struct {
ErrCode string `json:"errcode"`
Err string `json:"error"`
}
// Error returns the errcode and error message.
func (e RespError) Error() string {
return e.ErrCode + ": " + e.Err
}
// RespCreateFilter is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-user-userid-filter
type RespCreateFilter struct {
FilterID string `json:"filter_id"`
}
// RespVersions is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-versions
type RespVersions struct {
Versions []string `json:"versions"`
}
// RespJoinRoom is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-join
type RespJoinRoom struct {
RoomID string `json:"room_id"`
}
// RespLeaveRoom is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-leave
type RespLeaveRoom struct{}
// RespForgetRoom is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-forget
type RespForgetRoom struct{}
// RespInviteUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
type RespInviteUser struct{}
// RespKickUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-kick
type RespKickUser struct{}
// RespBanUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-ban
type RespBanUser struct{}
// RespUnbanUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-unban
type RespUnbanUser struct{}
// RespTyping is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-typing-userid
type RespTyping struct{}
// RespJoinedRooms is the JSON response for TODO-SPEC https://github.com/matrix-org/synapse/pull/1680
type RespJoinedRooms struct {
JoinedRooms []string `json:"joined_rooms"`
}
// RespJoinedMembers is the JSON response for TODO-SPEC https://github.com/matrix-org/synapse/pull/1680
type RespJoinedMembers struct {
Joined map[string]struct {
DisplayName *string `json:"display_name"`
AvatarURL *string `json:"avatar_url"`
} `json:"joined"`
}
// RespMessages is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-messages
type RespMessages struct {
Start string `json:"start"`
Chunk []Event `json:"chunk"`
End string `json:"end"`
}
// RespSendEvent is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-send-eventtype-txnid
type RespSendEvent struct {
EventID string `json:"event_id"`
}
// RespMediaUpload is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-media-r0-upload
type RespMediaUpload struct {
ContentURI string `json:"content_uri"`
}
// RespUserInteractive is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#user-interactive-authentication-api
type RespUserInteractive struct {
Flows []struct {
Stages []string `json:"stages"`
} `json:"flows"`
Params map[string]interface{} `json:"params"`
Session string `json:"string"`
Completed []string `json:"completed"`
ErrCode string `json:"errcode"`
Error string `json:"error"`
}
// HasSingleStageFlow returns true if there exists at least 1 Flow with a single stage of stageName.
func (r RespUserInteractive) HasSingleStageFlow(stageName string) bool {
for _, f := range r.Flows {
if len(f.Stages) == 1 && f.Stages[0] == stageName {
return true
}
}
return false
}
// RespUserDisplayName is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
type RespUserDisplayName struct {
DisplayName string `json:"displayname"`
}
// RespRegister is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
type RespRegister struct {
AccessToken string `json:"access_token"`
DeviceID string `json:"device_id"`
HomeServer string `json:"home_server"`
RefreshToken string `json:"refresh_token"`
UserID string `json:"user_id"`
}
// RespLogin is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-login
type RespLogin struct {
AccessToken string `json:"access_token"`
DeviceID string `json:"device_id"`
HomeServer string `json:"home_server"`
UserID string `json:"user_id"`
}
// RespLogout is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-logout
type RespLogout struct{}
// RespCreateRoom is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
type RespCreateRoom struct {
RoomID string `json:"room_id"`
}
// RespSync is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-sync
type RespSync struct {
NextBatch string `json:"next_batch"`
AccountData struct {
Events []Event `json:"events"`
} `json:"account_data"`
Presence struct {
Events []Event `json:"events"`
} `json:"presence"`
Rooms struct {
Leave map[string]struct {
State struct {
Events []Event `json:"events"`
} `json:"state"`
Timeline struct {
Events []Event `json:"events"`
Limited bool `json:"limited"`
PrevBatch string `json:"prev_batch"`
} `json:"timeline"`
} `json:"leave"`
Join map[string]struct {
State struct {
Events []Event `json:"events"`
} `json:"state"`
Timeline struct {
Events []Event `json:"events"`
Limited bool `json:"limited"`
PrevBatch string `json:"prev_batch"`
} `json:"timeline"`
} `json:"join"`
Invite map[string]struct {
State struct {
Events []Event
} `json:"invite_state"`
} `json:"invite"`
} `json:"rooms"`
}
type RespTurnServer struct {
Username string `json:"username"`
Password string `json:"password"`
TTL int `json:"ttl"`
URIs []string `json:"uris"`
}

50
vendor/github.com/matterbridge/gomatrix/room.go generated vendored Normal file
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package gomatrix
// Room represents a single Matrix room.
type Room struct {
ID string
State map[string]map[string]*Event
}
// UpdateState updates the room's current state with the given Event. This will clobber events based
// on the type/state_key combination.
func (room Room) UpdateState(event *Event) {
_, exists := room.State[event.Type]
if !exists {
room.State[event.Type] = make(map[string]*Event)
}
room.State[event.Type][*event.StateKey] = event
}
// GetStateEvent returns the state event for the given type/state_key combo, or nil.
func (room Room) GetStateEvent(eventType string, stateKey string) *Event {
stateEventMap, _ := room.State[eventType]
event, _ := stateEventMap[stateKey]
return event
}
// GetMembershipState returns the membership state of the given user ID in this room. If there is
// no entry for this member, 'leave' is returned for consistency with left users.
func (room Room) GetMembershipState(userID string) string {
state := "leave"
event := room.GetStateEvent("m.room.member", userID)
if event != nil {
membershipState, found := event.Content["membership"]
if found {
mState, isString := membershipState.(string)
if isString {
state = mState
}
}
}
return state
}
// NewRoom creates a new Room with the given ID
func NewRoom(roomID string) *Room {
// Init the State map and return a pointer to the Room
return &Room{
ID: roomID,
State: make(map[string]map[string]*Event),
}
}

65
vendor/github.com/matterbridge/gomatrix/store.go generated vendored Normal file
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@ -0,0 +1,65 @@
package gomatrix
// Storer is an interface which must be satisfied to store client data.
//
// You can either write a struct which persists this data to disk, or you can use the
// provided "InMemoryStore" which just keeps data around in-memory which is lost on
// restarts.
type Storer interface {
SaveFilterID(userID, filterID string)
LoadFilterID(userID string) string
SaveNextBatch(userID, nextBatchToken string)
LoadNextBatch(userID string) string
SaveRoom(room *Room)
LoadRoom(roomID string) *Room
}
// InMemoryStore implements the Storer interface.
//
// Everything is persisted in-memory as maps. It is not safe to load/save filter IDs
// or next batch tokens on any goroutine other than the syncing goroutine: the one
// which called Client.Sync().
type InMemoryStore struct {
Filters map[string]string
NextBatch map[string]string
Rooms map[string]*Room
}
// SaveFilterID to memory.
func (s *InMemoryStore) SaveFilterID(userID, filterID string) {
s.Filters[userID] = filterID
}
// LoadFilterID from memory.
func (s *InMemoryStore) LoadFilterID(userID string) string {
return s.Filters[userID]
}
// SaveNextBatch to memory.
func (s *InMemoryStore) SaveNextBatch(userID, nextBatchToken string) {
s.NextBatch[userID] = nextBatchToken
}
// LoadNextBatch from memory.
func (s *InMemoryStore) LoadNextBatch(userID string) string {
return s.NextBatch[userID]
}
// SaveRoom to memory.
func (s *InMemoryStore) SaveRoom(room *Room) {
s.Rooms[room.ID] = room
}
// LoadRoom from memory.
func (s *InMemoryStore) LoadRoom(roomID string) *Room {
return s.Rooms[roomID]
}
// NewInMemoryStore constructs a new InMemoryStore.
func NewInMemoryStore() *InMemoryStore {
return &InMemoryStore{
Filters: make(map[string]string),
NextBatch: make(map[string]string),
Rooms: make(map[string]*Room),
}
}

164
vendor/github.com/matterbridge/gomatrix/sync.go generated vendored Normal file
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package gomatrix
import (
"encoding/json"
"fmt"
"runtime/debug"
"time"
)
// Syncer represents an interface that must be satisfied in order to do /sync requests on a client.
type Syncer interface {
// Process the /sync response. The since parameter is the since= value that was used to produce the response.
// This is useful for detecting the very first sync (since=""). If an error is return, Syncing will be stopped
// permanently.
ProcessResponse(resp *RespSync, since string) error
// OnFailedSync returns either the time to wait before retrying or an error to stop syncing permanently.
OnFailedSync(res *RespSync, err error) (time.Duration, error)
// GetFilterJSON for the given user ID. NOT the filter ID.
GetFilterJSON(userID string) json.RawMessage
}
// DefaultSyncer is the default syncing implementation. You can either write your own syncer, or selectively
// replace parts of this default syncer (e.g. the ProcessResponse method). The default syncer uses the observer
// pattern to notify callers about incoming events. See DefaultSyncer.OnEventType for more information.
type DefaultSyncer struct {
UserID string
Store Storer
listeners map[string][]OnEventListener // event type to listeners array
}
// OnEventListener can be used with DefaultSyncer.OnEventType to be informed of incoming events.
type OnEventListener func(*Event)
// NewDefaultSyncer returns an instantiated DefaultSyncer
func NewDefaultSyncer(userID string, store Storer) *DefaultSyncer {
return &DefaultSyncer{
UserID: userID,
Store: store,
listeners: make(map[string][]OnEventListener),
}
}
// ProcessResponse processes the /sync response in a way suitable for bots. "Suitable for bots" means a stream of
// unrepeating events. Returns a fatal error if a listener panics.
func (s *DefaultSyncer) ProcessResponse(res *RespSync, since string) (err error) {
if !s.shouldProcessResponse(res, since) {
return
}
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("ProcessResponse panicked! userID=%s since=%s panic=%s\n%s", s.UserID, since, r, debug.Stack())
}
}()
for roomID, roomData := range res.Rooms.Join {
room := s.getOrCreateRoom(roomID)
for _, event := range roomData.State.Events {
event.RoomID = roomID
room.UpdateState(&event)
s.notifyListeners(&event)
}
for _, event := range roomData.Timeline.Events {
event.RoomID = roomID
s.notifyListeners(&event)
}
}
for roomID, roomData := range res.Rooms.Invite {
room := s.getOrCreateRoom(roomID)
for _, event := range roomData.State.Events {
event.RoomID = roomID
room.UpdateState(&event)
s.notifyListeners(&event)
}
}
for roomID, roomData := range res.Rooms.Leave {
room := s.getOrCreateRoom(roomID)
for _, event := range roomData.Timeline.Events {
if event.StateKey != nil {
event.RoomID = roomID
room.UpdateState(&event)
s.notifyListeners(&event)
}
}
}
return
}
// OnEventType allows callers to be notified when there are new events for the given event type.
// There are no duplicate checks.
func (s *DefaultSyncer) OnEventType(eventType string, callback OnEventListener) {
_, exists := s.listeners[eventType]
if !exists {
s.listeners[eventType] = []OnEventListener{}
}
s.listeners[eventType] = append(s.listeners[eventType], callback)
}
// shouldProcessResponse returns true if the response should be processed. May modify the response to remove
// stuff that shouldn't be processed.
func (s *DefaultSyncer) shouldProcessResponse(resp *RespSync, since string) bool {
if since == "" {
return false
}
// This is a horrible hack because /sync will return the most recent messages for a room
// as soon as you /join it. We do NOT want to process those events in that particular room
// because they may have already been processed (if you toggle the bot in/out of the room).
//
// Work around this by inspecting each room's timeline and seeing if an m.room.member event for us
// exists and is "join" and then discard processing that room entirely if so.
// TODO: We probably want to process messages from after the last join event in the timeline.
for roomID, roomData := range resp.Rooms.Join {
for i := len(roomData.Timeline.Events) - 1; i >= 0; i-- {
e := roomData.Timeline.Events[i]
if e.Type == "m.room.member" && e.StateKey != nil && *e.StateKey == s.UserID {
m := e.Content["membership"]
mship, ok := m.(string)
if !ok {
continue
}
if mship == "join" {
_, ok := resp.Rooms.Join[roomID]
if !ok {
continue
}
delete(resp.Rooms.Join, roomID) // don't re-process messages
delete(resp.Rooms.Invite, roomID) // don't re-process invites
break
}
}
}
}
return true
}
// getOrCreateRoom must only be called by the Sync() goroutine which calls ProcessResponse()
func (s *DefaultSyncer) getOrCreateRoom(roomID string) *Room {
room := s.Store.LoadRoom(roomID)
if room == nil { // create a new Room
room = NewRoom(roomID)
s.Store.SaveRoom(room)
}
return room
}
func (s *DefaultSyncer) notifyListeners(event *Event) {
listeners, exists := s.listeners[event.Type]
if !exists {
return
}
for _, fn := range listeners {
fn(event)
}
}
// OnFailedSync always returns a 10 second wait period between failed /syncs, never a fatal error.
func (s *DefaultSyncer) OnFailedSync(res *RespSync, err error) (time.Duration, error) {
return 10 * time.Second, nil
}
// GetFilterJSON returns a filter with a timeline limit of 50.
func (s *DefaultSyncer) GetFilterJSON(userID string) json.RawMessage {
return json.RawMessage(`{"room":{"timeline":{"limit":50}}}`)
}

130
vendor/github.com/matterbridge/gomatrix/userids.go generated vendored Normal file
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package gomatrix
import (
"bytes"
"encoding/hex"
"fmt"
"strings"
)
const lowerhex = "0123456789abcdef"
// encode the given byte using quoted-printable encoding (e.g "=2f")
// and writes it to the buffer
// See https://golang.org/src/mime/quotedprintable/writer.go
func encode(buf *bytes.Buffer, b byte) {
buf.WriteByte('=')
buf.WriteByte(lowerhex[b>>4])
buf.WriteByte(lowerhex[b&0x0f])
}
// escape the given alpha character and writes it to the buffer
func escape(buf *bytes.Buffer, b byte) {
buf.WriteByte('_')
if b == '_' {
buf.WriteByte('_') // another _
} else {
buf.WriteByte(b + 0x20) // ASCII shift A-Z to a-z
}
}
func shouldEncode(b byte) bool {
return b != '-' && b != '.' && b != '_' && !(b >= '0' && b <= '9') && !(b >= 'a' && b <= 'z') && !(b >= 'A' && b <= 'Z')
}
func shouldEscape(b byte) bool {
return (b >= 'A' && b <= 'Z') || b == '_'
}
func isValidByte(b byte) bool {
return isValidEscapedChar(b) || (b >= '0' && b <= '9') || b == '.' || b == '=' || b == '-'
}
func isValidEscapedChar(b byte) bool {
return b == '_' || (b >= 'a' && b <= 'z')
}
// EncodeUserLocalpart encodes the given string into Matrix-compliant user ID localpart form.
// See http://matrix.org/docs/spec/intro.html#mapping-from-other-character-sets
//
// This returns a string with only the characters "a-z0-9._=-". The uppercase range A-Z
// are encoded using leading underscores ("_"). Characters outside the aforementioned ranges
// (including literal underscores ("_") and equals ("=")) are encoded as UTF8 code points (NOT NCRs)
// and converted to lower-case hex with a leading "=". For example:
// Alph@Bet_50up => _alph=40_bet=5f50up
func EncodeUserLocalpart(str string) string {
strBytes := []byte(str)
var outputBuffer bytes.Buffer
for _, b := range strBytes {
if shouldEncode(b) {
encode(&outputBuffer, b)
} else if shouldEscape(b) {
escape(&outputBuffer, b)
} else {
outputBuffer.WriteByte(b)
}
}
return outputBuffer.String()
}
// DecodeUserLocalpart decodes the given string back into the original input string.
// Returns an error if the given string is not a valid user ID localpart encoding.
// See http://matrix.org/docs/spec/intro.html#mapping-from-other-character-sets
//
// This decodes quoted-printable bytes back into UTF8, and unescapes casing. For
// example:
// _alph=40_bet=5f50up => Alph@Bet_50up
// Returns an error if the input string contains characters outside the
// range "a-z0-9._=-", has an invalid quote-printable byte (e.g. not hex), or has
// an invalid _ escaped byte (e.g. "_5").
func DecodeUserLocalpart(str string) (string, error) {
strBytes := []byte(str)
var outputBuffer bytes.Buffer
for i := 0; i < len(strBytes); i++ {
b := strBytes[i]
if !isValidByte(b) {
return "", fmt.Errorf("Byte pos %d: Invalid byte", i)
}
if b == '_' { // next byte is a-z and should be upper-case or is another _ and should be a literal _
if i+1 >= len(strBytes) {
return "", fmt.Errorf("Byte pos %d: expected _[a-z_] encoding but ran out of string", i)
}
if !isValidEscapedChar(strBytes[i+1]) { // invalid escaping
return "", fmt.Errorf("Byte pos %d: expected _[a-z_] encoding", i)
}
if strBytes[i+1] == '_' {
outputBuffer.WriteByte('_')
} else {
outputBuffer.WriteByte(strBytes[i+1] - 0x20) // ASCII shift a-z to A-Z
}
i++ // skip next byte since we just handled it
} else if b == '=' { // next 2 bytes are hex and should be buffered ready to be read as utf8
if i+2 >= len(strBytes) {
return "", fmt.Errorf("Byte pos: %d: expected quote-printable encoding but ran out of string", i)
}
dst := make([]byte, 1)
_, err := hex.Decode(dst, strBytes[i+1:i+3])
if err != nil {
return "", err
}
outputBuffer.WriteByte(dst[0])
i += 2 // skip next 2 bytes since we just handled it
} else { // pass through
outputBuffer.WriteByte(b)
}
}
return outputBuffer.String(), nil
}
// ExtractUserLocalpart extracts the localpart portion of a user ID.
// See http://matrix.org/docs/spec/intro.html#user-identifiers
func ExtractUserLocalpart(userID string) (string, error) {
if len(userID) == 0 || userID[0] != '@' {
return "", fmt.Errorf("%s is not a valid user id", userID)
}
return strings.TrimPrefix(
strings.SplitN(userID, ":", 2)[0], // @foo:bar:8448 => [ "@foo", "bar:8448" ]
"@", // remove "@" prefix
), nil
}

8
vendor/manifest vendored
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@ -294,6 +294,14 @@
"branch": "master",
"notests": true
},
{
"importpath": "github.com/matterbridge/gomatrix",
"repository": "https://github.com/matterbridge/gomatrix",
"vcs": "git",
"revision": "78ac6a1a0f5fb9eb1684d85a3ed581a742fe4c79",
"branch": "work",
"notests": true
},
{
"importpath": "github.com/matterbridge/slack",
"repository": "https://github.com/matterbridge/slack",