From 537975723e7010837b0d1e6608723f0e91e12e5a Mon Sep 17 00:00:00 2001
From: ValueOn AG <p.motsch@valueon.ch>
Date: Mon, 16 Feb 2026 16:01:10 +0100
Subject: [PATCH] fix: fallback manual navigation to /v2/ URL when headless
 browser does not auto-redirect after auth

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 src/bot/joinProcedure.ts | 46 ++++++++++++++++++++++++++++++++++++++--
 src/bot/orchestrator.ts  |  4 ++--
 2 files changed, 46 insertions(+), 4 deletions(-)

diff --git a/src/bot/joinProcedure.ts b/src/bot/joinProcedure.ts
index 28f29ec..a9ea7c0 100644
--- a/src/bot/joinProcedure.ts
+++ b/src/bot/joinProcedure.ts
@@ -15,12 +15,14 @@ export class JoinProcedure {
   private _logger: Logger;
   private _botName: string;
   private _isAuthenticated: boolean;
+  private _meetingUrl: string;
 
-  constructor(page: Page, logger: Logger, botName: string, isAuthenticated: boolean = false) {
+  constructor(page: Page, logger: Logger, botName: string, isAuthenticated: boolean = false, meetingUrl: string = '') {
     this._page = page;
     this._logger = logger;
     this._botName = botName;
     this._isAuthenticated = isAuthenticated;
+    this._meetingUrl = meetingUrl;
   }
 
   /**
@@ -175,7 +177,47 @@ export class JoinProcedure {
       }
     }
 
-    this._logger.warn('Could not confirm authenticated pre-join page after all retries. Proceeding anyway...');
+    // Fallback: The automatic redirect to /v2/ did not happen (common in headless browsers).
+    // Manually navigate to the /v2/ authenticated pre-join URL with auth cookies.
+    // Format: https://teams.microsoft.com/v2/?meetingjoin=true#/meet/{meetingId}?p={passcode}
+    if (this._meetingUrl) {
+      const v2Url = this._buildV2MeetingUrl(this._meetingUrl);
+      this._logger.info(`Redirect to /v2/ did not happen. Navigating manually to: ${v2Url}`);
+      await this._page.goto(v2Url, { waitUntil: 'domcontentloaded', timeout: 30000 });
+      
+      // Wait for the /v2/ page to load and check again
+      for (let attempt = 1; attempt <= 3; attempt++) {
+        await this._page.waitForTimeout(5000);
+        const hasNameInput = await this._page.$('input[placeholder="Type your name"]');
+        const hasJoinButton = await this._page.$('#prejoin-join-button, button[data-tid="prejoin-join-button"], button:has-text("Join now")');
+        const url = this._page.url();
+
+        if (hasJoinButton && !hasNameInput) {
+          this._logger.info(`Authenticated pre-join page confirmed after manual nav (attempt ${attempt}/3). URL: ${url.substring(0, 100)}`);
+          return;
+        }
+
+        this._logger.info(`After manual nav (attempt ${attempt}/3): hasJoin=${!!hasJoinButton}, hasName=${!!hasNameInput}. URL: ${url.substring(0, 100)}`);
+      }
+    }
+
+    this._logger.warn('Could not confirm authenticated pre-join page. Proceeding anyway...');
+  }
+
+  /**
+   * Build the authenticated /v2/ meeting URL from the original meeting URL.
+   * Input:  https://teams.microsoft.com/meet/36438888781520?p=5fGqrujxzewPFjJacW
+   * Output: https://teams.microsoft.com/v2/?meetingjoin=true#/meet/36438888781520?p=5fGqrujxzewPFjJacW
+   */
+  private _buildV2MeetingUrl(meetingUrl: string): string {
+    try {
+      const url = new URL(meetingUrl);
+      const pathAndQuery = url.pathname + url.search;
+      return `https://teams.microsoft.com/v2/?meetingjoin=true#${pathAndQuery}`;
+    } catch {
+      this._logger.warn(`Could not parse meeting URL: ${meetingUrl}`);
+      return `https://teams.microsoft.com/v2/?meetingjoin=true`;
+    }
   }
 
   /**
diff --git a/src/bot/orchestrator.ts b/src/bot/orchestrator.ts
index d2225fb..7a4f8f7 100644
--- a/src/bot/orchestrator.ts
+++ b/src/bot/orchestrator.ts
@@ -133,8 +133,8 @@ export class BotOrchestrator {
     // Launch browser
     await this._launchBrowser();
 
-    // Update JoinProcedure with correct auth state
-    this._joinProcedure = new JoinProcedure(this._page!, this._logger, this._botName, authenticate);
+    // Update JoinProcedure with correct auth state and meeting URL
+    this._joinProcedure = new JoinProcedure(this._page!, this._logger, this._botName, authenticate, this._meetingUrl);
 
     this._setState('navigating');