Refactor and migrate more functions out of api into app package (#5063)

app/webtrc.go

@@ -0,0 +1,33 @@
+// Copyright (c) 2017 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package app
+
+import (
+	"crypto/tls"
+	"encoding/base64"
+	"net/http"
+	"strings"
+
+	"github.com/mattermost/platform/model"
+	"github.com/mattermost/platform/utils"
+)
+
+func RevokeWebrtcToken(sessionId string) {
+	token := base64.StdEncoding.EncodeToString([]byte(sessionId))
+	data := make(map[string]string)
+	data["janus"] = "remove_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")
+
+	// we do not care about the response
+	tr := &http.Transport{
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: *utils.Cfg.ServiceSettings.EnableInsecureOutgoingConnections},
+	}
+	httpClient := &http.Client{Transport: tr}
+	httpClient.Do(rq)
+}