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feat: add Android browser preset for companion device registration (#248)

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* feat: add Android browser preset for companion device registration

Add Browsers.android(apiLevel) preset that identifies as an Android
companion device (SMB_ANDROID platform, ANDROID_PHONE device type).
Validated against Frida captures of real WhatsApp Android protocol.


* feat: support BAILEYS_BROWSER env var for browser selection

Allows selecting Android companion mode via environment variable
without code changes. Set BAILEYS_BROWSER=android (or android:15
for a specific API level) to register as an Android device.

* fix: auto-detect Android browser in pair code and fall back to Chrome

Pair code companion registration fails with Android browser because the
WA server rejects the ANDROID_PHONE companion_platform_id over the web
Noise protocol. When Android is detected, requestPairingCode() now
transparently uses Chrome/macOS platform values for the pair code stanza
while QR code pairing continues to work as Android (SMB_ANDROID).

* docs: add android to isValidBrowserPreset JSDoc
This commit is contained in:
Renato Alcara
2026-03-02 12:02:08 -03:00
committed by GitHub
parent 45885c7a01
commit 31ac5aeb11
5 changed files with 63 additions and 12 deletions
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src/Utils/browser-utils.ts
+20 -3
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@@ -94,7 +94,13 @@ const BROWSER_TO_PLATFORM_ID: ReadonlyMap<string, string> = (() => {
}
}
return new Map(entries)
const map = new Map(entries)
// ANDROID → ANDROID_PHONE alias (DeviceProps.PlatformType has ANDROID_PHONE but not ANDROID)
if (!map.has('ANDROID') && map.has('ANDROID_PHONE')) {
map.set('ANDROID', map.get('ANDROID_PHONE')!)
}
return map
})()
// ============================================================
@@ -331,7 +337,8 @@ export const Browsers: BrowsersMap = {
macOS: (browser: string): [string, string, string] => ['Mac OS', browser, OS_VERSIONS.macOS],
windows: (browser: string): [string, string, string] => ['Windows', browser, OS_VERSIONS.windows],
baileys: (browser: string): [string, string, string] => ['Baileys', browser, OS_VERSIONS.baileys],
appropriate: (browser: string): [string, string, string] => [getPlatformName(), browser, getAppropriateVersion()]
appropriate: (browser: string): [string, string, string] => [getPlatformName(), browser, getAppropriateVersion()],
android: (apiLevel: string): [string, string, string] => [apiLevel, 'Android', '']
} as const
/**
@@ -378,7 +385,7 @@ export const getPlatformId = (browser: unknown): string => {
* properties like 'toString' or 'constructor'.
*
* @param value - Value to check
* @returns True if value is a valid browser preset key ('ubuntu', 'macOS', 'windows', 'baileys', 'appropriate')
* @returns True if value is a valid browser preset key ('ubuntu', 'macOS', 'windows', 'baileys', 'appropriate', 'android')
*
* @example
* isValidBrowserPreset('ubuntu') // true
@@ -391,6 +398,16 @@ export const getPlatformId = (browser: unknown): string => {
* const config = Browsers[userInput]('MyApp')
* }
*/
/**
* Checks if the browser tuple represents an Android companion device.
*
* @param browser - Browser tuple [os, platform, version]
* @returns True if platform is 'Android' (case-insensitive)
*/
export const isAndroidBrowser = (browser: [string, string, string]): boolean => {
return browser[1]?.toUpperCase() === 'ANDROID'
}
export const isValidBrowserPreset = (value: unknown): value is keyof BrowsersMap => {
return typeof value === 'string' && Object.prototype.hasOwnProperty.call(Browsers, value)
}