From bad6e67ca0cb74e341f4a6f5022bdfc498c746a0 Mon Sep 17 00:00:00 2001
From: ValueOn AG
Date: Tue, 12 May 2026 17:49:26 +0200
Subject: [PATCH] fixed teams
---
.env.sample | 25 +++
Dockerfile | 11 +-
docker-compose.yml | 4 +
src/bot/audioProcedure.ts | 17 +-
src/bot/chatProcedure.ts | 249 +++++++++++++++---------------
src/bot/joinProcedure.ts | 211 +++++++++++++------------
src/bot/mediaGetUserMediaPatch.ts | 47 +++---
src/bot/orchestrator.ts | 145 +++++++++++------
src/config.ts | 56 ++++++-
9 files changed, 460 insertions(+), 305 deletions(-)
diff --git a/.env.sample b/.env.sample
index 4de52ee..e6ce11f 100644
--- a/.env.sample
+++ b/.env.sample
@@ -9,6 +9,31 @@ GATEWAY_WS_URL=wss://gateway-int.poweron-center.net/api/teamsbot/ws
BOT_NAME=PowerOn AI
BOT_HEADLESS=true
+# Static avatar tile (replaces Teams' green/spinning "no video" placeholder
+# with a quiet, single-color surface + the bot's display name in the
+# center). Recommended for the anonymous bot. Colors are CSS values.
+# BOT_USE_CANVAS_VIDEO=true
+# BOT_AVATAR_BG_COLOR=#a8d4f0
+# BOT_AVATAR_TEXT_COLOR=#1a3552
+
+# DEBUG ONLY - leave commented in normal operation.
+# Set to true to skip BOTH media wrappers (RTCPeerConnection wrapper +
+# getUserMedia override) for isolating Teams' anonymous lobby preheating
+# crash (rejectMediaDescriptionsUpdateAsync). With this on the bot has
+# no audio in/out, no captions, no greeting - it sits silently.
+# BOT_DISABLE_MEDIA_WRAPPERS=true
+
+# DEBUG ONLY - bisect the Teams anonymous preheated-PC crash by running
+# anon with the auth Chromium args (minimal flags) AND no stealth init.
+# BOT_ANON_USE_AUTH_BROWSER_SETUP=true
+
+# Playwright browser channel. Empty = bundled Chromium (default).
+# Set to 'chrome' or 'msedge' to use the locally installed real browser.
+# Strongly recommended for anonymous Teams joins: Playwright's bundled
+# Chromium gets detected as automation and forced into a lobby + the
+# buggy preheated-PC code path; real Chrome bypasses both.
+# BOT_BROWSER_CHANNEL=chrome
+
# Logging
LOG_LEVEL=info
LOG_DIR=./output/logs
diff --git a/Dockerfile b/Dockerfile
index a242d35..ae89176 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,7 +21,7 @@ FROM mcr.microsoft.com/playwright:v1.50.0-jammy
WORKDIR /app
-# Install Xvfb for headful browser mode (Teams blocks headless browsers)
+# Xvfb for headful browser mode (Teams blocks headless browsers).
RUN apt-get update && apt-get install -y xvfb && rm -rf /var/lib/apt/lists/*
# Copy built files and dependencies
@@ -29,6 +29,14 @@ COPY --from=builder /app/dist ./dist
COPY --from=builder /app/node_modules ./node_modules
COPY package*.json ./
+# Real Google Chrome (stable channel) + its OS deps. Required for anonymous
+# Teams joins: the bundled Playwright Chromium gets detected as automation
+# by Teams' light-meetings flow and forced into a lobby + the buggy
+# preheated-PC code path. Real Chrome bypasses both. Configured via
+# BOT_BROWSER_CHANNEL=chrome (passed to chromium.launch({ channel })).
+# See wiki/b-reference/teams-bot/architecture.md → "Browser-Channel".
+RUN npx playwright install --with-deps chrome
+
# Create output directories
RUN mkdir -p output/logs output/screenshots
@@ -36,6 +44,7 @@ RUN mkdir -p output/logs output/screenshots
ENV NODE_ENV=production
ENV BOT_HEADLESS=false
ENV DISPLAY=:99
+ENV BOT_BROWSER_CHANNEL=chrome
# Expose port
EXPOSE 4100
diff --git a/docker-compose.yml b/docker-compose.yml
index 84d8f22..6257a82 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -12,6 +12,10 @@ services:
- BOT_NAME=${BOT_NAME:-PowerOn AI}
- BOT_HEADLESS=false
- DISPLAY=:99
+ # Real Chrome installed in the image (see Dockerfile). Required for
+ # anonymous Teams joins so the light-meetings flow does not detect
+ # automation and force the bot into a lobby.
+ - BOT_BROWSER_CHANNEL=${BOT_BROWSER_CHANNEL:-chrome}
- LOG_LEVEL=info
- SCREENSHOT_ON_ERROR=true
volumes:
diff --git a/src/bot/audioProcedure.ts b/src/bot/audioProcedure.ts
index 6be2c7d..2d995b6 100644
--- a/src/bot/audioProcedure.ts
+++ b/src/bot/audioProcedure.ts
@@ -20,6 +20,10 @@ export type AudioProcedureOptions = {
useCanvasVideo?: boolean;
/** Shown in the center of the canvas (e.g. bot display name) */
displayLabel?: string;
+ /** Hex/CSS color of the static avatar background (default: light blue). */
+ avatarBgColor?: string;
+ /** Hex/CSS color of the centered display label (default: dark blue). */
+ avatarTextColor?: string;
};
export class AudioProcedure {
@@ -27,6 +31,8 @@ export class AudioProcedure {
private _logger: Logger;
private _useCanvasVideo: boolean;
private _displayLabel: string;
+ private _avatarBgColor: string;
+ private _avatarTextColor: string;
private _audioContext: boolean = false;
private _initScriptInjected: boolean = false;
private _audioQueue: Array<{ audioData: string; format: 'mp3' | 'wav' | 'pcm' }> = [];
@@ -38,6 +44,8 @@ export class AudioProcedure {
this._logger = logger;
this._useCanvasVideo = !!options?.useCanvasVideo;
this._displayLabel = (options?.displayLabel || 'Bot').trim() || 'Bot';
+ this._avatarBgColor = (options?.avatarBgColor || '').trim() || '#a8d4f0';
+ this._avatarTextColor = (options?.avatarTextColor || '').trim() || '#1a3552';
}
/**
@@ -59,6 +67,8 @@ export class AudioProcedure {
await this._page.context().addInitScript(poweronMediaPatchInstall, {
useCanvasVideo: this._useCanvasVideo,
displayLabel: this._displayLabel,
+ avatarBgColor: this._avatarBgColor,
+ avatarTextColor: this._avatarTextColor,
});
this._initScriptInjected = true;
@@ -70,7 +80,12 @@ export class AudioProcedure {
* in an iframe (addInitScript runs too early) or overwrites getUserMedia.
*/
async reinstallMediaPatchInAllFrames(): Promise {
- const payload = { useCanvasVideo: this._useCanvasVideo, displayLabel: this._displayLabel };
+ const payload = {
+ useCanvasVideo: this._useCanvasVideo,
+ displayLabel: this._displayLabel,
+ avatarBgColor: this._avatarBgColor,
+ avatarTextColor: this._avatarTextColor,
+ };
for (const frame of this._page.frames()) {
try {
await frame.evaluate(poweronMediaPatchInstall, payload);
diff --git a/src/bot/chatProcedure.ts b/src/bot/chatProcedure.ts
index fe27c31..6ab15f7 100644
--- a/src/bot/chatProcedure.ts
+++ b/src/bot/chatProcedure.ts
@@ -144,74 +144,57 @@ export class ChatProcedure {
}
/**
- * Check if the chat panel is currently visible by probing for known
- * UI elements (chat input, message list, or aria-pressed toggle).
+ * Is the meeting chat panel currently open?
*
- * IMPORTANT — what we DO NOT accept as proof of an open chat panel:
- * * a generic ``[data-tid="ckeditor"]`` / ``[role=textbox]`` somewhere in
- * the page. In the anonymous / compact in-meeting layout Teams renders
- * a separate compose box (e.g. for reactions / inline comments) whose
- * parent has NO data-tid at all and which does NOT post into the
- * meeting chat. If we treated that as "panel open" the bot would skip
- * the toggle and silently lose every chat send.
- * * a "Besprechungschat" / "Meeting chat" heading. Teams keeps the side-
- * pane heading mounted even when the pane is ``vdi-occlusion`` / h=0.
+ * Teams' calling layout (both anonymous light-meetings and the
+ * authenticated meeting view as of 2026-05) hosts a single right-side
+ * pane container `[data-tid="calling-right-side-panel"]` that can
+ * display Chat, People, Info, Captions etc. — only one at a time.
+ * Detection is therefore two simple checks:
*
- * What we DO accept:
- * * ``#chat-button[aria-pressed="true"]`` — explicit toggle state.
- * * a known **chat-side-panel-scoped** input (selectors anchored under
- * ``chat-pane-compose-message-footer`` / ``message-pane-footer``).
- * * a chat **message list container** with non-trivial height.
+ * 1. Does the side-pane container exist AND is it visually rendered
+ * (offsetWidth/Height > 0, has an offsetParent)? When the pane
+ * is closed it is unmounted or collapsed to zero size.
+ * 2. Does the visible pane contain a chat-specific child
+ * (`message-pane-layout`, `chat-pane-compose-message-footer`,
+ * `#chat-pane-list`, `[data-app-name="chats"]`, …)? This
+ * distinguishes Chat-mode from People/Info/Captions
+ * language-independently.
+ *
+ * Things we deliberately do NOT inspect (each one was empirically
+ * shown to be unreliable for this DOM):
+ * * `#chat-button` attributes — the button is byte-identical in
+ * both states and has no `aria-pressed`. Visual state comes from
+ * a CSS `:has()` selector on the side-pane.
+ * * `vdi-occlusion` class — a permanent structural marker on
+ * `calling-right-side-panel` and `message-pane-layout`, not a
+ * visibility flag.
+ * * "Besprechungschat" / "Meeting chat" headings or any other
+ * text — locale-dependent + Teams keeps headings mounted even
+ * when the pane is hidden.
+ * * generic `[data-tid="ckeditor"]` anywhere in the page — the
+ * compact layout renders unrelated compose boxes (reactions,
+ * inline comments) outside the meeting chat panel.
*/
private async _isChatPanelOpen(): Promise {
return this._page.evaluate(() => {
- // 1. Chat button aria-pressed state. This is the ONLY safe short-
- // circuit — Teams keeps the panel "open" semantically even when its
- // layout pane is briefly collapsed (h=0, vdi-occlusion). If we were
- // stricter here the periodic scan / send path would re-trigger
- // _openChatPanel which CLICKS the button — and a click on an already-
- // pressed button TOGGLES the panel CLOSED. So aria-pressed=true must
- // short-circuit to true.
- const chatBtn = document.querySelector('#chat-button, button[id="chat-button"]') as HTMLElement | null;
- if (chatBtn?.getAttribute('aria-pressed') === 'true') return true;
-
- // 2. Chat input / compose box visible — but ONLY accept selectors
- // that are scoped to the actual chat side-pane (footer ancestors).
- // Generic [contenteditable] / [role=textbox] matches would also hit
- // the compact in-meeting compose box used by anonymous / pre-join
- // overlays, which is NOT the meeting chat.
- const inputSelectors = [
- '[data-tid="ckeditor-replyConversation"]',
- '[data-tid="ckeditor"]',
- '[data-tid="chat-pane-compose-message-footer"] div[contenteditable="true"]',
- '[data-tid="chat-pane-compose-message-footer"] div[role="textbox"]',
- '[data-tid="message-pane-footer"] div[contenteditable="true"]',
- '[data-tid="message-pane-footer"] div[role="textbox"]',
- 'div[role="textbox"][data-tid*="chat"]',
- 'div[role="textbox"][data-tid*="message"]',
- // light-meetings: a visible "expand compose" button is itself a
- // reliable signal that the meeting chat side-pane is open.
- '[data-tid="newMessageCommands-expand-compose"]',
- '[data-tid="simplified-compose-bottom-toolbar"]',
- ];
- for (const sel of inputSelectors) {
- const el = document.querySelector(sel) as HTMLElement | null;
- if (el && el.offsetHeight > 0) return true;
- }
-
- // 3. Chat-specific containers (NOT [role="log"] which also matches captions)
- const chatContainerSelectors = [
- '[data-tid="message-pane-list"]',
- '[data-tid="chat-pane-list"]',
- '[data-tid="chat-pane"]',
- '.ts-message-list-container',
- ];
- for (const sel of chatContainerSelectors) {
- const el = document.querySelector(sel) as HTMLElement | null;
- if (el && el.offsetHeight > 50) return true;
- }
-
- return false;
+ const sidePanel = document.querySelector(
+ '[data-tid="calling-right-side-panel"]',
+ ) as HTMLElement | null;
+ if (!sidePanel) return false;
+ const isVisible = sidePanel.offsetWidth > 0
+ && sidePanel.offsetHeight > 0
+ && sidePanel.offsetParent !== null;
+ if (!isVisible) return false;
+ const chatHallmark = sidePanel.querySelector(
+ '[data-tid="message-pane-layout"], '
+ + '[data-tid="message-pane-body"], '
+ + '[data-tid="chat-pane-compose-message-footer"], '
+ + '[data-tid="message-pane-footer"], '
+ + '#chat-pane-list, '
+ + '[data-app-name="chats"]',
+ );
+ return chatHallmark !== null;
});
}
@@ -222,13 +205,21 @@ export class ChatProcedure {
* loads from a chat thread). Clicking again would TOGGLE it closed —
* that's why we always check ``_isChatPanelOpen()`` first.
*
- * The selector list below covers BOTH layouts:
- * * authenticated full Teams meeting → ``#chat-button`` etc.
- * * anonymous / compact in-meeting toolbar (Teams Live / pre-join stage)
- * where the toggle has no stable id and only carries
- * ``data-tid``/``aria-label`` hints. We therefore include data-tid-
- * based and broader role-based fallbacks so the bot does not silently
- * fall back to typing into a non-chat compose box.
+ * Auth Full-Teams ships TWO buttons with "Chat" in the aria-label:
+ * 1) the real toggle (UUID id, `aria="Chat (Ctrl+Shift+2)"`,
+ * `aria-pressed="false"|"true"`)
+ * 2) a sibling `#chat-button` without `aria-pressed` that is NOT a
+ * toggle (likely the side-nav chat-app entry) — clicking it does
+ * nothing for the meeting chat panel.
+ * light-meetings (anon) ships only `#chat-button`, which IS the real
+ * toggle there (no `aria-pressed` because Teams' compact bar uses
+ * menu-button semantics).
+ *
+ * Strategy: collect every visible button/role=button whose
+ * id/data-tid/aria-label hints at "chat", PREFER ones with a real
+ * `aria-pressed` attribute, click the best unclicked one each round,
+ * and never click the same button twice (so a non-toggle does not
+ * lock us into a loop).
*/
private async _openChatPanel(): Promise {
if (await this._isChatPanelOpen()) {
@@ -236,27 +227,9 @@ export class ChatProcedure {
return true;
}
- const chatButtonSelectors = [
- '#chat-button',
- 'button[id="chat-button"]',
- 'button[data-tid="toggle-chat"]',
- 'button[data-tid*="chat" i]',
- 'button[data-tid*="conversation" i]',
- 'button[aria-label="Chat"]',
- 'button[aria-label*="Chat" i]',
- 'button[aria-label*="Unterhaltung" i]',
- 'button[aria-label*="Besprechungschat" i]',
- 'button[aria-label*="Meeting chat" i]',
- 'button[title*="Chat" i]',
- 'button[title*="Besprechungschat" i]',
- // role-based fallbacks for the compact / anonymous toolbar
- '[role="button"][aria-label*="Chat" i]',
- '[role="button"][aria-label*="Besprechungschat" i]',
- '[role="menuitem"][aria-label*="Chat" i]',
- ];
-
const maxAttempts = 12;
const pollIntervalMs = 2000;
+ const previouslyClicked: string[] = [];
for (let attempt = 1; attempt <= maxAttempts; attempt++) {
if (await this._isChatPanelOpen()) {
@@ -264,49 +237,81 @@ export class ChatProcedure {
return true;
}
- let clicked = false;
- const triedSelectors: string[] = [];
- for (const selector of chatButtonSelectors) {
- try {
- const button = await this._page.$(selector);
- if (!button) continue;
- const isVisible = await button.isVisible().catch(() => false);
- triedSelectors.push(`${selector}=${isVisible ? 'visible' : 'hidden'}`);
- if (!isVisible) continue;
- await button.click();
- clicked = true;
- this._logger.info(`Clicked chat button: ${selector} (attempt ${attempt}/${maxAttempts})`);
- break;
- } catch (err) {
- triedSelectors.push(`${selector}=err:${String(err).substring(0, 40)}`);
- }
- }
+ const click = await this._page.evaluate((alreadyTried: string[]) => {
+ const matchesChatHint = (el: Element): boolean => {
+ const id = (el.id || '').toLowerCase();
+ const tid = (el.getAttribute('data-tid') || '').toLowerCase();
+ const aria = (el.getAttribute('aria-label') || '').toLowerCase();
+ const title = (el.getAttribute('title') || '').toLowerCase();
+ return [id, tid, aria, title].some((v) =>
+ v.includes('chat')
+ || v.includes('unterhalt')
+ || v.includes('besprechung')
+ || v.includes('conversation'),
+ );
+ };
+ const isVisible = (el: HTMLElement): boolean =>
+ el.offsetHeight > 0 && el.offsetWidth > 0 && el.offsetParent !== null;
+ const keyOf = (el: Element): string =>
+ `${el.id || ''}|${el.getAttribute('data-tid') || ''}|${el.getAttribute('aria-label') || ''}`;
+ const isToggle = (el: Element): boolean => {
+ const p = el.getAttribute('aria-pressed');
+ return p === 'true' || p === 'false';
+ };
- if (clicked) {
- await this._page.waitForTimeout(2500);
- if (await this._isChatPanelOpen()) {
- this._logger.info('Chat panel opened successfully');
- return true;
- }
- this._logger.info('Chat button clicked but panel not detected yet, waiting before next attempt');
- await this._page.waitForTimeout(pollIntervalMs);
- } else {
- // Log which selectors were tried — without this we can't tell whether
- // the buttons are missing entirely or just hidden behind another layer.
+ const all = Array.from(
+ document.querySelectorAll('button, [role="button"], [role="menuitem"]'),
+ ) as HTMLElement[];
+ const candidates = all
+ .filter((el) => matchesChatHint(el) && isVisible(el))
+ .filter((el) => !alreadyTried.includes(keyOf(el)));
+
+ if (candidates.length === 0) return { picked: null as null | { key: string; id: string; tid: string; aria: string; toggle: boolean } };
+
+ const toggles = candidates.filter(isToggle);
+ const pick = toggles[0] || candidates[0];
+ pick.scrollIntoView({ block: 'center' });
+ pick.click();
+ return {
+ picked: {
+ key: keyOf(pick),
+ id: pick.id || '',
+ tid: pick.getAttribute('data-tid') || '',
+ aria: pick.getAttribute('aria-label') || '',
+ toggle: isToggle(pick),
+ },
+ };
+ }, previouslyClicked);
+
+ if (!click.picked) {
this._logger.info(
- `Chat button not found, retry ${attempt}/${maxAttempts}` +
- (triedSelectors.length ? ` | tried: ${triedSelectors.join(', ')}` : ''),
+ `No (more) un-clicked chat button candidates, retry ${attempt}/${maxAttempts}`,
);
- // On the very first miss dump the full button diagnostics so the
- // next code change has a real selector hint to work from instead
- // of guessing. After that we throttle to avoid log spam.
if (attempt === 1) {
await this._dumpChatButtonDiagnostics();
}
if (attempt < maxAttempts) {
await this._page.waitForTimeout(pollIntervalMs);
}
+ continue;
}
+
+ previouslyClicked.push(click.picked.key);
+ this._logger.info(
+ `Clicked chat button: id="${click.picked.id}" tid="${click.picked.tid}" `
+ + `aria="${click.picked.aria}" toggle=${click.picked.toggle} `
+ + `(attempt ${attempt}/${maxAttempts})`,
+ );
+
+ await this._page.waitForTimeout(2500);
+ if (await this._isChatPanelOpen()) {
+ this._logger.info('Chat panel opened successfully');
+ return true;
+ }
+ this._logger.info(
+ 'Chat button clicked but panel not detected — will try a different candidate next round',
+ );
+ await this._page.waitForTimeout(pollIntervalMs);
}
this._logger.warn('Could not open chat panel after polling - chat will not work');
diff --git a/src/bot/joinProcedure.ts b/src/bot/joinProcedure.ts
index 8c74d54..c4d49b4 100644
--- a/src/bot/joinProcedure.ts
+++ b/src/bot/joinProcedure.ts
@@ -15,6 +15,21 @@ import { resolveLaunchUrl, getMeetingLaunchUrl } from './meetingUrlParser';
*/
const _CONDITION_WAIT_MS = 10000;
+/**
+ * Result of a structural state-detection probe.
+ * `via` names the trigger that decided the result so the orchestrator can
+ * log _why_ it transitioned the bot into the next state.
+ *
+ * Examples for `via`:
+ * - `selector:[data-tid="lobby-screen"]` — direct attribute match
+ * - `selector:button[id="hangup-button"]` — direct attribute match
+ * - `inferred:join-gone+no-hangup+no-callbar` — structural inference
+ */
+export interface DetectionResult {
+ matched: boolean;
+ via?: string;
+}
+
export class JoinProcedure {
private _page: Page;
private _logger: Logger;
@@ -383,12 +398,23 @@ export class JoinProcedure {
/**
* Check if the bot is currently in the lobby (waiting to be admitted).
- * Teams shows various lobby messages depending on the meeting state:
- * - "Someone will let you in shortly" (meeting active, waiting for admit)
- * - "Someone will let you in when the meeting starts" (meeting not started yet)
- * - "waiting for someone to let you in" (alternative wording)
+ *
+ * Detection is purely structural (no text matching) so it works in any
+ * Teams UI language:
+ *
+ * 1) Direct: a known lobby/waiting container `data-tid` / `data-cid` is
+ * visible. This is the strongest signal but the attributes drift
+ * between Teams releases.
+ * 2) Inferred: we have left pre-join (the `prejoin-join-button` is no
+ * longer visible) AND we are not yet in the meeting (no hangup button
+ * or call-control bar). After `_clickJoinNow()` succeeded, this state
+ * is unambiguously "lobby or in transition" — both meaning "wait for
+ * admission" from the orchestrator's point of view.
+ *
+ * Returns `{ matched, via }` where `via` names the trigger that decided
+ * the result so the orchestrator can log why it transitioned state.
*/
- async isInMeetingLobby(options: { waitForSeconds?: number } = {}): Promise {
+ async isInMeetingLobby(options: { waitForSeconds?: number } = {}): Promise {
const timeout = (options.waitForSeconds || 5) * 1000;
const lobbySelectors = [
@@ -396,110 +422,101 @@ export class JoinProcedure {
'[data-tid="waiting-screen"]',
'[data-tid="lobby-waiting-screen"]',
'[data-tid="lobby-container"]',
+ '[data-tid="prejoin-lobby"]',
'[data-cid="lobby-screen"]',
'[data-cid="waiting-screen"]',
+ '[data-cid="ts-waiting-screen"]',
'#lobby-container',
- '[id*="lobby"]',
];
- try {
- await this._page.waitForSelector(lobbySelectors.join(', '), {
- timeout,
- state: 'visible',
- });
- return true;
- } catch {
- // No structural lobby element found
- }
-
- // Fallback: check for the pre-join/lobby state via page structure —
- // the lobby has no call-control bar but does have a waiting spinner or icon
- try {
- const hasLobbyStructure = await this._page.evaluate(() => {
- const el = document.querySelector(
- '[class*="lobby" i], [class*="waiting-room" i], [class*="waitingScreen" i]'
- );
- return !!el;
- });
- if (hasLobbyStructure) return true;
- } catch {
- // Page may not be ready
- }
-
- return false;
- }
-
- /**
- * Check if the bot is currently in the meeting (admitted from lobby).
- * Primary selector: button[id="hangup-button"] (confirmed by Recall.ai).
- * Note: Teams uses `id` (not `data-tid`) for the hangup button since 2025 redesign.
- *
- * For authenticated joins, Teams v2 sometimes renders differently.
- * Additional fallback: check the URL for meeting patterns and DOM for call UI.
- */
- async isInMeeting(options: { waitForSeconds?: number } = {}): Promise {
- const timeout = (options.waitForSeconds || 5) * 1000;
-
- const inMeetingSelectors = [
- // Button IDs (Teams 2025+ redesign)
- 'button[id="hangup-button"]',
- 'button[id="microphone-button"]',
- 'button[id="callingButtons-showMoreBtn"]',
- 'button[id="video-button"]',
- // data-tid attributes
- '[data-tid="hangup-button"]',
- '[data-tid="call-composite"]',
- '[data-tid="callingButtons-showMoreBtn"]',
- '[data-tid="call-controls"]',
- '[data-tid="meeting-composite"]',
- 'div[data-tid="video-gallery"]',
- '[data-tid="microphone-button"]',
- '[data-tid="toggle-mute"]',
- // data-cid attributes (light-meetings / anonymous join)
- '[data-cid="ts-hangup-btn"]',
- '[data-cid="calling-hangup-button"]',
- '[data-cid="calling-unified-bar"]',
- ];
-
- try {
- await this._page.waitForSelector(inMeetingSelectors.join(', '), {
- timeout,
- state: 'visible',
- });
- return true;
- } catch {
- // Primary selector-based detection failed
- }
-
- // Fallback: structural DOM check for call control containers
- try {
- const inMeeting = await this._page.evaluate(() => {
- const callBar = document.querySelector(
- '[class*="calling-controls" i], [class*="call-controls" i], ' +
- '[class*="controlBar" i], [class*="unified-bar" i]'
- );
- if (callBar) return true;
- // Check for hangup/mic buttons by role+structure (language-independent)
- const buttons = Array.from(document.querySelectorAll('button[id]'));
- let callButtons = 0;
- for (let i = 0; i < buttons.length; i++) {
- const id = buttons[i].id.toLowerCase();
- if (id.includes('hangup') || id.includes('microphone') ||
- id.includes('video-button') || id.includes('mute')) {
- callButtons++;
- }
+ for (const selector of lobbySelectors) {
+ try {
+ const handle = await this._page.waitForSelector(selector, {
+ timeout: Math.max(50, Math.floor(timeout / lobbySelectors.length)),
+ state: 'visible',
+ });
+ if (handle) {
+ return { matched: true, via: `selector:${selector}` };
}
- return callButtons >= 2;
+ } catch {
+ // Try next selector
+ }
+ }
+
+ try {
+ const inferred = await this._page.evaluate(() => {
+ const isVisible = (el: Element | null): boolean => {
+ if (!el) return false;
+ const he = el as HTMLElement;
+ if (he.offsetParent === null) return false;
+ const rect = he.getBoundingClientRect();
+ return rect.width > 0 && rect.height > 0;
+ };
+
+ const joinBtn = document.querySelector(
+ '#prejoin-join-button, button[data-tid="prejoin-join-button"]',
+ );
+ const hangupBtn = document.querySelector(
+ 'button[id="hangup-button"], [data-tid="hangup-button"], ' +
+ '[data-cid="ts-hangup-btn"], [data-cid="calling-hangup-button"]',
+ );
+ const callBar = document.querySelector(
+ '[data-tid="call-controls"], [data-tid="call-composite"], ' +
+ '[data-tid="meeting-composite"], [data-tid="video-gallery"], ' +
+ '[data-cid="calling-unified-bar"]',
+ );
+
+ return !isVisible(joinBtn) && !isVisible(hangupBtn) && !isVisible(callBar);
});
- if (inMeeting) {
- this._logger.info('Detected meeting via structural DOM analysis (fallback)');
- return true;
+ if (inferred) {
+ return { matched: true, via: 'inferred:join-gone+no-hangup+no-callbar' };
}
} catch {
// Page may not be ready
}
- return false;
+ return { matched: false };
+ }
+
+ /**
+ * Check if the bot is currently in the meeting (admitted from lobby).
+ *
+ * The ONLY reliable indicator that we are admitted is the hangup button:
+ * it does not exist in pre-join nor in the lobby. Other elements such as
+ * `data-tid="toggle-mute"` or `id="microphone-button"` also appear in the
+ * pre-join / lobby preview UI and would produce false positives that make
+ * the orchestrator think the bot is in the meeting while it is still
+ * waiting in the lobby.
+ *
+ * Returns `{ matched, via }` where `via` names the matched hangup
+ * selector so the orchestrator can log the trigger that promoted the
+ * bot into the `in_meeting` state.
+ */
+ async isInMeeting(options: { waitForSeconds?: number } = {}): Promise {
+ const timeout = (options.waitForSeconds || 5) * 1000;
+
+ const hangupSelectors = [
+ 'button[id="hangup-button"]',
+ '[data-tid="hangup-button"]',
+ '[data-cid="ts-hangup-btn"]',
+ '[data-cid="calling-hangup-button"]',
+ ];
+
+ for (const selector of hangupSelectors) {
+ try {
+ const handle = await this._page.waitForSelector(selector, {
+ timeout: Math.max(50, Math.floor(timeout / hangupSelectors.length)),
+ state: 'visible',
+ });
+ if (handle) {
+ return { matched: true, via: `selector:${selector}` };
+ }
+ } catch {
+ // Try next selector
+ }
+ }
+
+ return { matched: false };
}
/**
diff --git a/src/bot/mediaGetUserMediaPatch.ts b/src/bot/mediaGetUserMediaPatch.ts
index 8827587..6988342 100644
--- a/src/bot/mediaGetUserMediaPatch.ts
+++ b/src/bot/mediaGetUserMediaPatch.ts
@@ -8,11 +8,17 @@
export type MediaGetUserMediaPatchOptions = {
useCanvasVideo: boolean;
displayLabel: string;
+ /** Hex/CSS color of the static avatar background (default: light blue). */
+ avatarBgColor?: string;
+ /** Hex/CSS color of the centered display label (default: dark blue). */
+ avatarTextColor?: string;
};
export const poweronMediaPatchInstall = (opts: MediaGetUserMediaPatchOptions) => {
'use strict';
const { useCanvasVideo, displayLabel } = opts;
+ const avatarBgColor = opts.avatarBgColor || '#a8d4f0';
+ const avatarTextColor = opts.avatarTextColor || '#1a3552';
const w: any = window as any;
if (!w.__gumChromium) {
@@ -163,7 +169,11 @@ export const poweronMediaPatchInstall = (opts: MediaGetUserMediaPatchOptions) =>
return;
}
- const _fps = 15;
+ // Low fps: the avatar is intentionally STATIC. The interval still ticks so
+ // captureStream() in headless Chromium gets fresh frames (some Chromium
+ // builds pause the track if no new frames arrive), but each tick draws an
+ // identical image — no animation, no flicker.
+ const _fps = 2;
w.__startBotAvatarStream = () => {
if (
w.__botAvatarStreamStarted
@@ -196,43 +206,20 @@ export const poweronMediaPatchInstall = (opts: MediaGetUserMediaPatchOptions) =>
(document.body || document.documentElement).appendChild(canvas);
w.__botAvatarCanvas = canvas;
const c2d = canvas.getContext('2d');
- let t = 0;
const draw = () => {
if (!c2d) {
return;
}
- t += 0.04;
const wPx = canvas.width;
const hPx = canvas.height;
- c2d.fillStyle = '#061525';
+ c2d.fillStyle = avatarBgColor;
c2d.fillRect(0, 0, wPx, hPx);
- const g = c2d.createLinearGradient(0, 0, wPx, hPx);
- g.addColorStop(0, '#1a4f8c');
- g.addColorStop(0.5, '#0c305a');
- g.addColorStop(1, '#132e6e');
- c2d.fillStyle = g;
- c2d.fillRect(0, 0, wPx, hPx);
- c2d.strokeStyle = 'rgba(255, 200, 80, 0.95)';
- c2d.lineWidth = 3;
- c2d.strokeRect(6, 6, wPx - 12, hPx - 12);
- c2d.fillStyle = 'rgba(255, 220, 120, 0.95)';
- c2d.font = '600 13px system-ui, "Segoe UI", sans-serif';
- c2d.textAlign = 'left';
- c2d.textBaseline = 'top';
- c2d.fillText('PORTA', 14, 10);
+ c2d.fillStyle = avatarTextColor;
+ c2d.font = 'bold 28px system-ui, "Segoe UI", sans-serif';
c2d.textAlign = 'center';
c2d.textBaseline = 'middle';
- c2d.fillStyle = '#ffffff';
- c2d.font = 'bold 28px system-ui, "Segoe UI", sans-serif';
const line = (w.__botAvatarDisplayLabel || displayLabel).toString().slice(0, 72);
- c2d.fillText(line, wPx / 2, hPx / 2 - 6);
- c2d.fillStyle = 'rgba(255,255,255,0.78)';
- c2d.font = '14px system-ui, "Segoe UI", sans-serif';
- c2d.fillText('poweron', wPx / 2, hPx / 2 + 26);
- const pulse = 0.75 + 0.25 * Math.sin(t);
- c2d.fillStyle = 'rgba(120, 200, 255, ' + 0.15 * pulse + ')';
- c2d.fillRect(0, 0, wPx, 6);
- c2d.fillRect(0, hPx - 6, wPx, 6);
+ c2d.fillText(line, wPx / 2, hPx / 2);
};
draw();
// Capture at fps for compositor-driven frames AND also push manual frames
@@ -243,7 +230,9 @@ export const poweronMediaPatchInstall = (opts: MediaGetUserMediaPatchOptions) =>
if (w.__botAvatarVideoTrack) {
w.__botAvatarVideoTrack.enabled = true;
try {
- w.__botAvatarVideoTrack.contentHint = 'motion';
+ // 'detail' = static / low-motion content -> WebRTC uses lower
+ // bitrate + preserves text sharpness instead of motion smoothing.
+ w.__botAvatarVideoTrack.contentHint = 'detail';
} catch {
// ignore
}
diff --git a/src/bot/orchestrator.ts b/src/bot/orchestrator.ts
index cbf7c0f..becd907 100644
--- a/src/bot/orchestrator.ts
+++ b/src/bot/orchestrator.ts
@@ -173,7 +173,7 @@ export class BotOrchestrator {
}
try {
- this._setState('launching');
+ this._setState('launching', 'trigger=start invoked');
// Connect to Gateway WebSocket first
await this._connectToGateway();
@@ -203,7 +203,7 @@ export class BotOrchestrator {
// Launch browser
await this._launchBrowser();
- this._setState('navigating');
+ this._setState('navigating', 'trigger=browser launched');
// STEP 1: Navigate to meeting URL and click "Continue on this browser"
await this._takeScreenshot('anon-step1-before-launcher', this._isDebugMode);
@@ -223,19 +223,12 @@ export class BotOrchestrator {
await this._joinProcedure!.joinMeetingLobbyFlow();
await this._takeScreenshot('anon-step2-after-join', this._isDebugMode);
- // Check if we're in lobby
- const inLobby = await this._joinProcedure!.isInMeetingLobby({ waitForSeconds: 10 });
- if (inLobby) {
- this._setState('in_lobby');
- this._logger.info('Bot is in lobby, waiting to be admitted...');
- await this._takeScreenshot('anon-step3-in-lobby', this._isDebugMode);
- }
+ // Wait to be admitted to the meeting (handles lobby state internally).
+ // Returns the trigger (matched selector) that promoted us into the meeting.
+ const admissionVia = await this._waitForMeetingAdmission();
- // Wait to be admitted to the meeting
- await this._waitForMeetingAdmission();
-
- this._setState('in_meeting');
- this._logger.info(`Bot joined the meeting as "${this._botName}"`);
+ this._setState('in_meeting', `trigger=${admissionVia}`);
+ this._logger.info(`Bot joined the meeting as "${this._botName}" (trigger=${admissionVia})`);
await this._takeScreenshot('anon-step4-in-meeting', this._isDebugMode);
// Start keepalive to prevent idle disconnect
@@ -244,6 +237,15 @@ export class BotOrchestrator {
// Dismiss any post-join permission modals (e.g. "Manage windows on all displays")
await this._joinProcedure!.dismissBrowserPermissionModals();
+ if (config.botDisableMediaWrappers) {
+ this._logger.warn(
+ 'BOT_DISABLE_MEDIA_WRAPPERS=true: skipping audio init, transcript capture and ' +
+ 'join greeting. Bot will sit silently in the meeting until stopped.',
+ );
+ await this._takeScreenshot('anon-step5-ready', this._isDebugMode);
+ return;
+ }
+
// Initialize audio playback
await this._audioProcedure!.initialize();
if (config.botUseCanvasVideo) {
@@ -271,7 +273,7 @@ export class BotOrchestrator {
*/
private async _attemptAuthJoin(): Promise {
await this._launchBrowser(true);
- this._setState('navigating');
+ this._setState('navigating', 'trigger=browser launched (auth)');
// STEP 1: Navigate to teams.microsoft.com to trigger authentication
this._logger.info('STEP 1: navigating to teams.microsoft.com');
@@ -444,10 +446,12 @@ export class BotOrchestrator {
await this._takeScreenshot('step5-join-now-clicked', this._isDebugMode);
// STEP 6: Wait for meeting admission (hangup button = in meeting)
- await this._waitForMeetingAdmission();
+ const admissionVia = await this._waitForMeetingAdmission();
- this._setState('in_meeting');
- this._logger.info(`STEP 6: bot joined the meeting (authenticated as ${this._options.botAccountEmail})`);
+ this._setState('in_meeting', `trigger=${admissionVia}`);
+ this._logger.info(
+ `STEP 6: bot joined the meeting (authenticated as ${this._options.botAccountEmail}, trigger=${admissionVia})`,
+ );
await this._takeScreenshot('step6-in-meeting', this._isDebugMode);
this._startKeepAlive();
@@ -940,7 +944,7 @@ export class BotOrchestrator {
this._stopKeepAlive();
try {
- this._setState('leaving');
+ this._setState('leaving', 'trigger=stop() invoked');
// Stop audio capture
if (this._audioCaptureProcedure) {
@@ -977,7 +981,7 @@ export class BotOrchestrator {
this._gatewayWs = null;
}
- this._setState('disconnected');
+ this._setState('disconnected', 'trigger=shutdown completed');
}
}
@@ -1038,7 +1042,21 @@ export class BotOrchestrator {
private async _launchBrowser(authMode: boolean = false): Promise {
this._logger.info(`Launching browser (authMode=${authMode})...`);
- const args = authMode
+ // When BOT_ANON_USE_AUTH_BROWSER_SETUP is on, the anon path uses the
+ // exact same minimal flag set as the auth path — bisecting whether
+ // the anon-only Chromium flags trigger Teams' light-meetings preheating
+ // crash (`rejectMediaDescriptionsUpdateAsync`).
+ const useAuthSetupForAnon = !authMode && config.botAnonUseAuthBrowserSetup;
+ if (useAuthSetupForAnon) {
+ this._logger.warn(
+ 'BOT_ANON_USE_AUTH_BROWSER_SETUP=true: anon will use the auth Chromium args ' +
+ '(no --disable-web-security, no --disable-blink-features=AutomationControlled) ' +
+ 'AND skip the navigator stealth init.',
+ );
+ }
+ const useMinimalArgs = authMode || useAuthSetupForAnon;
+
+ const args = useMinimalArgs
? [
'--no-sandbox',
'--disable-dev-shm-usage',
@@ -1058,9 +1076,15 @@ export class BotOrchestrator {
'--disable-blink-features=AutomationControlled',
];
+ const channel = config.botBrowserChannel.trim();
+ if (channel) {
+ this._logger.info(`Browser channel override: '${channel}' (using locally installed browser)`);
+ }
+
this._browser = await chromium.launch({
- headless: authMode ? false : config.botHeadless,
+ headless: useMinimalArgs ? false : config.botHeadless,
args,
+ ...(channel ? { channel } : {}),
});
this._context = await this._browser.newContext({
@@ -1080,6 +1104,8 @@ export class BotOrchestrator {
// Stealth: Override browser properties that reveal automation.
// Teams checks these to detect headless/automated browsers and
// blocks the /v2/ authenticated experience, falling back to light-meetings.
+ // SKIPPED when BOT_ANON_USE_AUTH_BROWSER_SETUP is on (debug isolation).
+ if (!useAuthSetupForAnon) {
await this._page.addInitScript(() => {
// 1. Remove navigator.webdriver flag (primary detection signal)
Object.defineProperty(navigator, 'webdriver', { get: () => false });
@@ -1112,6 +1138,7 @@ export class BotOrchestrator {
// @ts-ignore
if (!window.chrome.runtime) { window.chrome.runtime = {}; }
});
+ }
// Initialize procedures
this._joinProcedure = new JoinProcedure(this._page, this._logger, this._botName);
@@ -1135,6 +1162,8 @@ export class BotOrchestrator {
this._audioProcedure = new AudioProcedure(this._page, this._logger, {
useCanvasVideo: config.botUseCanvasVideo,
displayLabel: this._botName,
+ avatarBgColor: config.botAvatarBgColor,
+ avatarTextColor: config.botAvatarTextColor,
});
this._teamsActions = new TeamsActionsService(this._page, this._logger);
this._chatProcedure = new ChatProcedure(
@@ -1151,14 +1180,27 @@ export class BotOrchestrator {
},
);
- // Inject audio getUserMedia override BEFORE any navigation
- // This ensures Teams gets our controlled audio stream when it calls getUserMedia
- await this._audioProcedure.injectAudioOverride();
+ // DEBUG TOGGLE: skip both wrappers when isolating the Teams anonymous
+ // `rejectMediaDescriptionsUpdateAsync` crash during lobby preheating.
+ if (config.botDisableMediaWrappers) {
+ this._logger.warn(
+ 'BOT_DISABLE_MEDIA_WRAPPERS=true: skipping getUserMedia override AND ' +
+ 'RTCPeerConnection wrapper. Audio capture (transcript) and TTS playback ' +
+ 'will be unavailable for this session.',
+ );
+ } else {
+ // Inject audio getUserMedia override BEFORE any navigation
+ // This ensures Teams gets our controlled audio stream when it calls getUserMedia
+ await this._audioProcedure.injectAudioOverride();
- // Aggressive hybrid mode: always capture meeting audio as transcript source.
- await this._audioCaptureProcedure!.injectCaptureOverride();
+ // Aggressive hybrid mode: always capture meeting audio as transcript source.
+ await this._audioCaptureProcedure!.injectCaptureOverride();
+ }
this._page.on('framenavigated', () => {
+ if (config.botDisableMediaWrappers) {
+ return;
+ }
if (!config.botUseCanvasVideo || !this._audioProcedure) {
return;
}
@@ -1180,21 +1222,21 @@ export class BotOrchestrator {
this._page.on('close', () => {
if (!this._isShuttingDown) {
this._logger.warn('Page closed unexpectedly');
- this._setState('disconnected');
+ this._setState('disconnected', 'trigger=page close event');
}
});
// Handle browser renderer crash (Chromium process segfault)
this._page.on('crash', () => {
this._logger.error('BROWSER CRASH: Chromium renderer process crashed!');
- this._setState('error', 'Browser crashed');
+ this._setState('error', 'trigger=Chromium renderer crashed');
});
// Handle browser disconnection (entire browser process dies)
this._browser.on('disconnected', () => {
if (!this._isShuttingDown) {
this._logger.error('BROWSER DISCONNECTED: Browser process died unexpectedly');
- this._setState('error', 'Browser process died');
+ this._setState('error', 'trigger=browser process died');
}
});
@@ -1231,43 +1273,50 @@ export class BotOrchestrator {
* Bails out immediately if the page is closed (crash/disconnect) so we
* don't report a misleading "in_lobby" state for the next 2 minutes.
*/
- private async _waitForMeetingAdmission(): Promise {
+ private async _waitForMeetingAdmission(): Promise {
const startTime = Date.now();
const timeout = config.timeouts.lobbyWait;
let loggedLobby = false;
let wasInLobby = false;
+ let lastLobbyVia: string | undefined;
while (Date.now() - startTime < timeout) {
if (!this._page || this._page.isClosed()) {
throw new Error('Page closed while waiting for meeting admission');
}
- const inMeeting = await this._joinProcedure!.isInMeeting({ waitForSeconds: 5 });
- if (inMeeting) {
- if (wasInLobby) {
- this._logger.info('Admitted from lobby into meeting');
- }
- return;
- }
-
- const inLobby = await this._joinProcedure!.isInMeetingLobby({ waitForSeconds: 2 });
-
- if (inLobby) {
+ // Lobby check FIRST: while we are in the lobby, we must never let
+ // isInMeeting() decide our state — even though it is now strict
+ // (hangup-button only), checking lobby first keeps the order of
+ // truth obvious and prevents us from running post-join logic the
+ // instant Teams flips a single lobby attribute.
+ const lobby = await this._joinProcedure!.isInMeetingLobby({ waitForSeconds: 2 });
+ if (lobby.matched) {
wasInLobby = true;
+ lastLobbyVia = lobby.via;
if (!loggedLobby) {
loggedLobby = true;
- this._setState('in_lobby');
- this._logger.info('Bot is in lobby, waiting for admission...');
+ this._setState('in_lobby', `trigger=${lobby.via}`);
+ this._logger.info(`Bot is in lobby, waiting for admission (trigger=${lobby.via})`);
await this._takeScreenshot('in-lobby');
}
continue;
}
+ const meeting = await this._joinProcedure!.isInMeeting({ waitForSeconds: 3 });
+ if (meeting.matched) {
+ if (wasInLobby) {
+ this._logger.info(`Admitted from lobby into meeting (trigger=${meeting.via})`);
+ } else {
+ this._logger.info(`Joined meeting directly without lobby (trigger=${meeting.via})`);
+ }
+ return meeting.via || 'unknown';
+ }
+
if (wasInLobby) {
- // Lobby disappeared but isInMeeting not yet true — Teams is
- // transitioning (WebRTC renegotiation, UI rendering). Keep
- // polling; the meeting controls will appear shortly.
- this._logger.info('Lobby gone, waiting for meeting UI to render...');
+ this._logger.info(
+ `Lobby gone (last lobby trigger=${lastLobbyVia}), waiting for meeting UI to render...`,
+ );
await this._takeScreenshot('lobby-transition');
}
}
diff --git a/src/config.ts b/src/config.ts
index ee1c3ec..5e82155 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -15,15 +15,57 @@ export const config = {
botName: process.env.BOT_NAME || 'PowerOn AI',
botHeadless: process.env.BOT_HEADLESS !== 'false',
/**
- * Replace Chromium's fake test-pattern video with a canvas stream (gradient + label).
- * Default OFF: in tests with the poweron tenant the Teams SFU rejects all
- * outbound video m-lines (port=0/inactive) regardless of which track we send,
- * so enabling video just costs CPU + adds a misleading "camera on" indicator
- * for other participants without ever transmitting frames. Set
- * BOT_USE_CANVAS_VIDEO=true if a future tenant policy permits IP video and
- * you want to push the canvas stream.
+ * Replace Chromium's fake test-pattern video (the green surface with the
+ * spinning Teams placeholder) with a STATIC single-color canvas stream
+ * showing the bot's display name.
+ * Default OFF: when no video track is sent at all, Teams renders its own
+ * "no video" placeholder for the participant. Setting BOT_USE_CANVAS_VIDEO
+ * =true makes the bot push a quiet, static avatar surface so other
+ * participants see a calm uniform tile instead of the loading spinner.
*/
botUseCanvasVideo: process.env.BOT_USE_CANVAS_VIDEO === 'true',
+ /**
+ * Background + text color of the static avatar canvas (only relevant if
+ * BOT_USE_CANVAS_VIDEO=true). Any CSS color value is accepted.
+ */
+ botAvatarBgColor: process.env.BOT_AVATAR_BG_COLOR || '#a8d4f0',
+ botAvatarTextColor: process.env.BOT_AVATAR_TEXT_COLOR || '#1a3552',
+ /**
+ * DEBUG ONLY: skip both media wrappers (RTCPeerConnection wrapper from
+ * AudioCaptureProcedure AND the getUserMedia override from AudioProcedure).
+ * Use this to test whether the wrappers are the cause of Teams' anonymous
+ * `rejectMediaDescriptionsUpdateAsync` crash during the lobby preheating.
+ *
+ * With wrappers disabled the bot CANNOT capture meeting audio nor play
+ * TTS — it can only sit in the meeting silently and observe captions /
+ * the chat panel. This is purely an isolation test toggle.
+ *
+ * Set BOT_DISABLE_MEDIA_WRAPPERS=true to enable the bypass.
+ */
+ botDisableMediaWrappers: process.env.BOT_DISABLE_MEDIA_WRAPPERS === 'true',
+ /**
+ * DEBUG ONLY: when true, the anonymous join uses the same minimal
+ * Chromium args as the authenticated join AND skips the navigator
+ * stealth init script. Goal: find out whether the special anon-only
+ * flags (`--disable-web-security`, `--disable-features=IsolateOrigins,
+ * site-per-process`, `--disable-blink-features=AutomationControlled`)
+ * or the stealth properties are what triggers Teams' light-meetings
+ * preheated-PC crash (`rejectMediaDescriptionsUpdateAsync`).
+ *
+ * Set BOT_ANON_USE_AUTH_BROWSER_SETUP=true to enable.
+ */
+ botAnonUseAuthBrowserSetup: process.env.BOT_ANON_USE_AUTH_BROWSER_SETUP === 'true',
+ /**
+ * Playwright browser channel. Empty = Playwright's bundled Chromium.
+ * Set to 'chrome' or 'msedge' to use the locally installed real
+ * browser instead. The real Chrome ships with the canonical
+ * Sec-CH-UA / Sec-CH-UA-Platform client hints and Canvas/WebGL
+ * fingerprints — many automation-detection heuristics (including the
+ * one Teams uses to force anonymous bots into a lobby + preheated-PC
+ * code path that crashes with `rejectMediaDescriptionsUpdateAsync`)
+ * accept real Chrome but reject Playwright's bundled Chromium.
+ */
+ botBrowserChannel: process.env.BOT_BROWSER_CHANNEL || '',
// Logging
logLevel: process.env.LOG_LEVEL || 'info',