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fb6f2a123c
* PLT-5860 Updated copyright date in about modal * PLT-5860 Updated copyright notice in JSX files * PLT-5860 Updated copyright notice in go files * Fixed misc copyright dates * Fixed component snapshots
94 lines
2.9 KiB
Go
94 lines
2.9 KiB
Go
// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
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// See License.txt for license information.
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package api
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import (
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"crypto/hmac"
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"crypto/sha1"
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"crypto/tls"
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"encoding/base64"
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"net/http"
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"strconv"
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"strings"
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"time"
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l4g "github.com/alecthomas/log4go"
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"github.com/mattermost/platform/app"
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"github.com/mattermost/platform/model"
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"github.com/mattermost/platform/utils"
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)
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func InitWebrtc() {
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l4g.Debug(utils.T("api.webrtc.init.debug"))
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BaseRoutes.Webrtc.Handle("/token", ApiUserRequired(webrtcToken)).Methods("POST")
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}
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func webrtcToken(c *Context, w http.ResponseWriter, r *http.Request) {
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if token, err := getWebrtcToken(c.Session.Id); err != nil {
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c.Err = err
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return
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} else {
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result := make(map[string]string)
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result["token"] = token
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result["gateway_url"] = *utils.Cfg.WebrtcSettings.GatewayWebsocketUrl
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if len(*utils.Cfg.WebrtcSettings.StunURI) > 0 {
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result["stun_uri"] = *utils.Cfg.WebrtcSettings.StunURI
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}
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if len(*utils.Cfg.WebrtcSettings.TurnURI) > 0 {
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timestamp := strconv.FormatInt(utils.EndOfDay(time.Now().AddDate(0, 0, 1)).Unix(), 10)
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username := timestamp + ":" + *utils.Cfg.WebrtcSettings.TurnUsername
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result["turn_uri"] = *utils.Cfg.WebrtcSettings.TurnURI
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result["turn_password"] = generateTurnPassword(username, *utils.Cfg.WebrtcSettings.TurnSharedKey)
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result["turn_username"] = username
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}
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w.Write([]byte(model.MapToJson(result)))
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}
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}
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func getWebrtcToken(sessionId string) (string, *model.AppError) {
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if !*utils.Cfg.WebrtcSettings.Enable {
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return "", model.NewLocAppError("WebRTC.getWebrtcToken", "api.webrtc.disabled.app_error", nil, "")
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}
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token := base64.StdEncoding.EncodeToString([]byte(sessionId))
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data := make(map[string]string)
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data["janus"] = "add_token"
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data["token"] = token
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data["transaction"] = model.NewId()
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data["admin_secret"] = *utils.Cfg.WebrtcSettings.GatewayAdminSecret
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rq, _ := http.NewRequest("POST", *utils.Cfg.WebrtcSettings.GatewayAdminUrl, strings.NewReader(model.MapToJson(data)))
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rq.Header.Set("Content-Type", "application/json")
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tr := &http.Transport{
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TLSClientConfig: &tls.Config{InsecureSkipVerify: *utils.Cfg.ServiceSettings.EnableInsecureOutgoingConnections},
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}
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httpClient := &http.Client{Transport: tr}
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if rp, err := httpClient.Do(rq); err != nil {
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return "", model.NewLocAppError("WebRTC.Token", "model.client.connecting.app_error", nil, err.Error())
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} else if rp.StatusCode >= 300 {
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defer app.CloseBody(rp)
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return "", model.AppErrorFromJson(rp.Body)
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} else {
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janusResponse := model.GatewayResponseFromJson(rp.Body)
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if janusResponse.Status != "success" {
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return "", model.NewLocAppError("getWebrtcToken", "api.webrtc.register_token.app_error", nil, "")
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}
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}
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return token, nil
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}
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func generateTurnPassword(username string, secret string) string {
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key := []byte(secret)
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h := hmac.New(sha1.New, key)
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h.Write([]byte(username))
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return base64.StdEncoding.EncodeToString(h.Sum(nil))
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}
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