automatically add protocol to Server URL (#2083) (#2106)

* automatically add protocol to Server URL (#2083)

* refactor NewTeamModal to only detect protocol on save

* use window.postMessage for intercom + only ping on form save

src/main/app/initialize.ts

@@ -33,6 +33,7 @@ import {
     USER_ACTIVITY_UPDATE,
     START_UPGRADE,
     START_DOWNLOAD,
+    PING_DOMAIN,
 } from 'common/communication';
 import Config from 'common/config';
 import urlUtils from 'common/utils/url';
@@ -81,6 +82,7 @@ import {
     handleSwitchServer,
     handleSwitchTab,
     handleUpdateLastActive,
+    handlePingDomain,
 } from './intercom';
 import {
     clearAppCache,
@@ -253,6 +255,7 @@ function initializeInterCommunicationEventListeners() {
     ipcMain.handle(GET_DOWNLOAD_LOCATION, handleSelectDownload);
     ipcMain.on(START_DOWNLOAD, handleStartDownload);
     ipcMain.on(START_UPGRADE, handleStartUpgrade);
+    ipcMain.handle(PING_DOMAIN, handlePingDomain);
 }
 
 function initializeAfterAppReady() {

src/main/app/intercom.ts

@@ -9,6 +9,7 @@ import {MentionData} from 'types/notification';
 
 import Config from 'common/config';
 import {getDefaultTeamWithTabsFromTeam} from 'common/tabs/TabView';
+import {ping} from 'common/utils/requests';
 
 import {displayMention} from 'main/notifications';
 import {getLocalPreload, getLocalURLString} from 'main/utils';
@@ -256,3 +257,16 @@ export function handleUpdateLastActive(event: IpcMainEvent, serverName: string,
     Config.set('lastActiveTeam', teams.find((team) => team.name === serverName)?.order || 0);
 }
 
+export function handlePingDomain(event: IpcMainInvokeEvent, url: string): Promise<string> {
+    return Promise.allSettled([
+        ping(new URL(`https://${url}`)),
+        ping(new URL(`http://${url}`)),
+    ]).then(([https, http]): string => {
+        if (https.status === 'fulfilled') {
+            return 'https';
+        } else if (http.status === 'fulfilled') {
+            return 'http';
+        }
+        throw new Error('Could not find server ' + url);
+    });
+}