Allow adding custom javascript to the page. Closes #2604

controllers/admin/config.go

@@ -650,6 +650,22 @@ func SetCustomStyles(w http.ResponseWriter, r *http.Request) {
 	controllers.WriteSimpleResponse(w, true, "custom styles updated")
 }
 
+// SetCustomJavascript will set the Javascript string we insert into the page.
+func SetCustomJavascript(w http.ResponseWriter, r *http.Request) {
+	customJavascript, success := getValueFromRequest(w, r)
+	if !success {
+		controllers.WriteSimpleResponse(w, false, "unable to update custom javascript")
+		return
+	}
+
+	if err := data.SetCustomJavascript(customJavascript.Value.(string)); err != nil {
+		controllers.WriteSimpleResponse(w, false, err.Error())
+		return
+	}
+
+	controllers.WriteSimpleResponse(w, true, "custom styles updated")
+}
+
 // SetForbiddenUsernameList will set the list of usernames we do not allow to use.
 func SetForbiddenUsernameList(w http.ResponseWriter, r *http.Request) {
 	type forbiddenUsernameListRequest struct {

controllers/admin/serverConfig.go

@@ -46,6 +46,7 @@ func GetServerConfig(w http.ResponseWriter, r *http.Request) {
 			SocialHandles:       data.GetSocialHandles(),
 			NSFW:                data.GetNSFW(),
 			CustomStyles:        data.GetCustomStyles(),
+			CustomJavascript:    data.GetCustomJavascript(),
 			AppearanceVariables: data.GetCustomColorVariableValues(),
 		},
 		FFmpegPath:              ffmpeg,
@@ -138,6 +139,7 @@ type webConfigResponse struct {
 	StreamTitle         string                `json:"streamTitle"` // What's going on with the current stream
 	SocialHandles       []models.SocialHandle `json:"socialHandles"`
 	CustomStyles        string                `json:"customStyles"`
+	CustomJavascript    string                `json:"customJavascript"`
 	AppearanceVariables map[string]string     `json:"appearanceVariables"`
 }