fix: domain final url telegram

Author: Guru

examples/nextjs-app/pages/popupMode/login.tsx

@@ -105,8 +105,8 @@ class MyApp extends React.Component<IProps, IState> {
       [LINE]: { domain: AUTH_DOMAIN },
       [COGNITO]: { domain: COGNITO_AUTH_DOMAIN, identity_provider: "Google", response_type: "token", user_info_endpoint: "userInfo" },
       [TELEGRAM]: {
-        domain: AUTH_DOMAIN,
         identity_provider: "Telegram",
+        domain: "https://oauth.tg.dev/auth",
         origin: "https://custom-auth-beta.vercel.app/serviceworker/redirect",
       },
       [REDDIT]: { domain: AUTH_DOMAIN, connection: "Reddit", verifierIdField: "name", isVerifierIdCaseSensitive: false },

examples/nextjs-app/pages/redirectMode/login.tsx

@@ -95,7 +95,11 @@ class RedirectMode extends React.Component<IProps, IState> {
       [WEIBO]: { domain: AUTH_DOMAIN },
       [LINE]: { domain: AUTH_DOMAIN },
       [COGNITO]: { domain: COGNITO_AUTH_DOMAIN, identity_provider: "Google", response_type: "token", user_info_endpoint: "userInfo" },
-      [TELEGRAM]: { domain: AUTH_DOMAIN, identity_provider: "Telegram", origin: "https://custom-auth-beta.vercel.app/auth" },
+      [TELEGRAM]: { 
+        domain: "https://oauth.tg.dev/auth",
+        identity_provider: "Telegram", 
+        origin: "https://custom-auth-beta.vercel.app/auth" 
+      },
       [REDDIT]: { domain: AUTH_DOMAIN, connection: "Reddit", verifierIdField: "name", isVerifierIdCaseSensitive: false },
     };
   };

src/handlers/TelegramHandler.ts

@@ -2,7 +2,7 @@ import base64url from "base64url";
 import deepmerge from "deepmerge";
 
 import { UX_MODE } from "../utils/enums";
-import { broadcastChannelOptions, getTimeout } from "../utils/helpers";
+import { broadcastChannelOptions, getTimeout, validateAndConstructUrl } from "../utils/helpers";
 import log from "../utils/loglevel";
 import PopupHandler from "../utils/PopupHandler";
 import AbstractLoginHandler from "./AbstractLoginHandler";
@@ -35,7 +35,9 @@ export default class TelegramHandler extends AbstractLoginHandler {
   }
 
   setFinalUrl(): void {
-    const finalUrl = new URL("https://oauth.telegram.org/auth");
+    const { domain } = this.params.jwtParams;
+    const finalUrl = validateAndConstructUrl(domain || "https://oauth.telegram.org/auth");
+
     const clonedParams = JSON.parse(JSON.stringify(this.params.jwtParams || {}));
     clonedParams.origin = `${this.params.redirect_uri}?state=${this.state}&nonce=${this.nonce}`;