From f7f64a31eae0ca20d9cfa28bd2732e1a110ca16a Mon Sep 17 00:00:00 2001
From: Faisal Salman <f@faisalman.com>
Date: Tue, 11 Mar 2025 17:50:36 +0700
Subject: [PATCH] [extensions] Detect OS from WhatsApp user agent

---
 src/extensions/ua-parser-extensions.js | 8 ++++++++
 test/unit/extensions.js                | 6 ++++++
 2 files changed, 14 insertions(+)

diff --git a/src/extensions/ua-parser-extensions.js b/src/extensions/ua-parser-extensions.js
index 7c24624..e8e3f6e 100644
--- a/src/extensions/ua-parser-extensions.js
+++ b/src/extensions/ua-parser-extensions.js
@@ -244,6 +244,11 @@ const Fetchers = Object.freeze({
             /((?:better uptime |telegram|vercel)bot|cohere-ai|feedfetcher-google|google(?:imageproxy|-read-aloud|-pagerenderer|producer)|snap url preview|yandex(?:sitelinks|userproxy))/i
         ], 
         [NAME, [TYPE, FETCHER]],
+    ],
+
+    os : [
+        [/whatsapp\/[\d\.]+ (a|i)/i],
+        [[NAME, os => os == 'A' ? 'Android' : 'iOS' ]]
     ]
 });
 
@@ -362,6 +367,9 @@ const Bots = Object.freeze({
         ...Crawlers.browser,
         ...Fetchers.browser,
         ...Libraries.browser
+    ],
+    os : [
+        ...Fetchers.os
     ]
 });
 
diff --git a/test/unit/extensions.js b/test/unit/extensions.js
index 417ed8a..9f1fa96 100644
--- a/test/unit/extensions.js
+++ b/test/unit/extensions.js
@@ -61,6 +61,12 @@ describe('Extensions', () => {
         major: '1',
         type: 'fetcher'
     });
+
+    const whatsapp = "WhatsApp/2.0 A";
+    assert.deepEqual(new UAParser(whatsapp, Fetchers).getOS(), {
+        name : 'Android',
+        version : undefined
+    });
 });
 
 describe('Merge', () => {