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authorJoram Wilander <jwawilander@gmail.com>2017-04-16 21:14:31 -0400
committerGitHub <noreply@github.com>2017-04-16 21:14:31 -0400
commit74ffb6f98f7ee8b4e61743919ab20460c57ad4da (patch)
treead840112478819775c5c2acec88f508cebc28713 /app/webrtc.go
parentc7f26bb1103e75c451eba3b720ac41097c427fbc (diff)
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Implement GET /webrtc/token endpoint for APIv4 (#6046)
Diffstat (limited to 'app/webrtc.go')
-rw-r--r--app/webrtc.go87
1 files changed, 87 insertions, 0 deletions
diff --git a/app/webrtc.go b/app/webrtc.go
new file mode 100644
index 000000000..6692fff60
--- /dev/null
+++ b/app/webrtc.go
@@ -0,0 +1,87 @@
+// Copyright (c) 2017 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package app
+
+import (
+ "crypto/hmac"
+ "crypto/sha1"
+ "crypto/tls"
+ "encoding/base64"
+ "net/http"
+ "strconv"
+ "strings"
+ "time"
+
+ "github.com/mattermost/platform/model"
+ "github.com/mattermost/platform/utils"
+)
+
+func GetWebrtcInfoForSession(sessionId string) (*model.WebrtcInfoResponse, *model.AppError) {
+ token, err := GetWebrtcToken(sessionId)
+ if err != nil {
+ return nil, err
+ }
+
+ result := &model.WebrtcInfoResponse{
+ Token: token,
+ GatewayUrl: *utils.Cfg.WebrtcSettings.GatewayWebsocketUrl,
+ }
+
+ if len(*utils.Cfg.WebrtcSettings.StunURI) > 0 {
+ result.StunUri = *utils.Cfg.WebrtcSettings.StunURI
+ }
+
+ if len(*utils.Cfg.WebrtcSettings.TurnURI) > 0 {
+ timestamp := strconv.FormatInt(utils.EndOfDay(time.Now().AddDate(0, 0, 1)).Unix(), 10)
+ username := timestamp + ":" + *utils.Cfg.WebrtcSettings.TurnUsername
+
+ result.TurnUri = *utils.Cfg.WebrtcSettings.TurnURI
+ result.TurnPassword = GenerateTurnPassword(username, *utils.Cfg.WebrtcSettings.TurnSharedKey)
+ result.TurnUsername = username
+ }
+
+ return result, nil
+}
+
+func GetWebrtcToken(sessionId string) (string, *model.AppError) {
+ if !*utils.Cfg.WebrtcSettings.Enable {
+ return "", model.NewAppError("WebRTC.getWebrtcToken", "api.webrtc.disabled.app_error", nil, "", http.StatusNotImplemented)
+ }
+
+ token := base64.StdEncoding.EncodeToString([]byte(sessionId))
+
+ data := make(map[string]string)
+ data["janus"] = "add_token"
+ data["token"] = token
+ data["transaction"] = model.NewId()
+ data["admin_secret"] = *utils.Cfg.WebrtcSettings.GatewayAdminSecret
+
+ rq, _ := http.NewRequest("POST", *utils.Cfg.WebrtcSettings.GatewayAdminUrl, strings.NewReader(model.MapToJson(data)))
+ rq.Header.Set("Content-Type", "application/json")
+
+ tr := &http.Transport{
+ TLSClientConfig: &tls.Config{InsecureSkipVerify: *utils.Cfg.ServiceSettings.EnableInsecureOutgoingConnections},
+ }
+ httpClient := &http.Client{Transport: tr}
+ if rp, err := httpClient.Do(rq); err != nil {
+ return "", model.NewAppError("WebRTC.Token", "model.client.connecting.app_error", nil, err.Error(), http.StatusInternalServerError)
+ } else if rp.StatusCode >= 300 {
+ defer CloseBody(rp)
+ return "", model.AppErrorFromJson(rp.Body)
+ } else {
+ janusResponse := model.GatewayResponseFromJson(rp.Body)
+ if janusResponse.Status != "success" {
+ return "", model.NewAppError("getWebrtcToken", "api.webrtc.register_token.app_error", nil, "", http.StatusInternalServerError)
+ }
+ }
+
+ return token, nil
+}
+
+func GenerateTurnPassword(username string, secret string) string {
+ key := []byte(secret)
+ h := hmac.New(sha1.New, key)
+ h.Write([]byte(username))
+ return base64.StdEncoding.EncodeToString(h.Sum(nil))
+}