[MM-14521] New endpoint to validate site urls (#11944)

api4/system.go

@@ -27,6 +27,7 @@ func (api *API) InitSystem() {
 
 	api.BaseRoutes.ApiRoot.Handle("/audits", api.ApiSessionRequired(getAudits)).Methods("GET")
 	api.BaseRoutes.ApiRoot.Handle("/email/test", api.ApiSessionRequired(testEmail)).Methods("POST")
+	api.BaseRoutes.ApiRoot.Handle("/site_url/test", api.ApiSessionRequired(testSiteURL)).Methods("POST")
 	api.BaseRoutes.ApiRoot.Handle("/file/s3_test", api.ApiSessionRequired(testS3)).Methods("POST")
 	api.BaseRoutes.ApiRoot.Handle("/database/recycle", api.ApiSessionRequired(databaseRecycle)).Methods("POST")
 	api.BaseRoutes.ApiRoot.Handle("/caches/invalidate", api.ApiSessionRequired(invalidateCaches)).Methods("POST")
@@ -145,6 +146,32 @@ func testEmail(c *Context, w http.ResponseWriter, r *http.Request) {
 	ReturnStatusOK(w)
 }
 
+func testSiteURL(c *Context, w http.ResponseWriter, r *http.Request) {
+	if !c.App.SessionHasPermissionTo(c.App.Session, model.PERMISSION_MANAGE_SYSTEM) {
+		c.SetPermissionError(model.PERMISSION_MANAGE_SYSTEM)
+		return
+	}
+
+	if *c.App.Config().ExperimentalSettings.RestrictSystemAdmin {
+		c.Err = model.NewAppError("testSiteURL", "api.restricted_system_admin", nil, "", http.StatusForbidden)
+		return
+	}
+
+	props := model.MapFromJson(r.Body)
+	siteURL := props["site_url"]
+	if siteURL == "" {
+		c.SetInvalidParam("site_url")
+		return
+	}
+	err := c.App.TestSiteURL(siteURL)
+	if err != nil {
+		c.Err = err
+		return
+	}
+
+	ReturnStatusOK(w)
+}
+
 func getAudits(c *Context, w http.ResponseWriter, r *http.Request) {
 	if !c.App.SessionHasPermissionTo(c.App.Session, model.PERMISSION_MANAGE_SYSTEM) {
 		c.SetPermissionError(model.PERMISSION_MANAGE_SYSTEM)