From ba5dd3b75a41d670619743a40195feb23716f614 Mon Sep 17 00:00:00 2001
From: naorpeled <me@naor.dev>
Date: Sat, 22 Nov 2025 17:59:15 +0200
Subject: [PATCH] meta

---
 src/constants.js                     |  6 +++
 src/parser-browsers.js               | 53 ++++++++++++++++++++-
 src/parser-platforms.js              | 33 +++++++++++++
 test/acceptance/useragentstrings.yml | 69 ++++++++++++++++++++++++++++
 4 files changed, 160 insertions(+), 1 deletion(-)

diff --git a/src/constants.js b/src/constants.js
index 607b746..2f4f718 100644
--- a/src/constants.js
+++ b/src/constants.js
@@ -27,6 +27,9 @@ export const BROWSER_ALIASES_MAP = {
   InternetArchiveCrawler: 'internetarchivecrawler',
   'K-Meleon': 'k_meleon',
   Maxthon: 'maxthon',
+  'Meta-ExternalAds': 'meta_externalads',
+  'Meta-ExternalAgent': 'meta_externalagent',
+  'Meta-ExternalFetcher': 'meta_externalfetcher',
   'Meta-WebIndexer': 'meta_webindexer',
   'Microsoft Edge': 'edge',
   'MZ Browser': 'mz',
@@ -90,6 +93,9 @@ export const BROWSER_MAP = {
   internetarchivecrawler: 'InternetArchiveCrawler',
   k_meleon: 'K-Meleon',
   maxthon: 'Maxthon',
+  meta_externalads: 'Meta-ExternalAds',
+  meta_externalagent: 'Meta-ExternalAgent',
+  meta_externalfetcher: 'Meta-ExternalFetcher',
   meta_webindexer: 'Meta-WebIndexer',
   mz: 'MZ Browser',
   naver: 'NAVER Whale Browser',
diff --git a/src/parser-browsers.js b/src/parser-browsers.js
index 3c4ae40..0f071a6 100644
--- a/src/parser-browsers.js
+++ b/src/parser-browsers.js
@@ -87,7 +87,7 @@ const browsersList = [
         name: 'ClaudeBot',
       };
       const version = Utils.getFirstMatch(/(?:claudebot|claude-web|claude-user|claude-searchbot)\/(\d+(\.\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);
-      
+
       if (version) {
         browser.version = version;
       }
@@ -198,6 +198,57 @@ const browsersList = [
     },
   },
 
+  /* Meta-ExternalAds */
+  {
+    test: [/meta-externalads/i],
+    describe(ua) {
+      const browser = {
+        name: 'Meta-ExternalAds',
+      };
+      const version = Utils.getFirstMatch(/meta-externalads\/(\d+(\.\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);
+
+      if (version) {
+        browser.version = version;
+      }
+
+      return browser;
+    },
+  },
+
+  /* Meta-ExternalAgent */
+  {
+    test: [/meta-externalagent/i],
+    describe(ua) {
+      const browser = {
+        name: 'Meta-ExternalAgent',
+      };
+      const version = Utils.getFirstMatch(/meta-externalagent\/(\d+(\.\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);
+
+      if (version) {
+        browser.version = version;
+      }
+
+      return browser;
+    },
+  },
+
+  /* Meta-ExternalFetcher */
+  {
+    test: [/meta-externalfetcher/i],
+    describe(ua) {
+      const browser = {
+        name: 'Meta-ExternalFetcher',
+      };
+      const version = Utils.getFirstMatch(/meta-externalfetcher\/(\d+(\.\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);
+
+      if (version) {
+        browser.version = version;
+      }
+
+      return browser;
+    },
+  },
+
   /* Googlebot */
   {
     test: [/googlebot/i],
diff --git a/src/parser-platforms.js b/src/parser-platforms.js
index 00d60ee..74889a5 100644
--- a/src/parser-platforms.js
+++ b/src/parser-platforms.js
@@ -183,6 +183,39 @@ export default [
     },
   },
 
+  /* Meta-ExternalAds */
+  {
+    test: [/meta-externalads/i],
+    describe() {
+      return {
+        type: PLATFORMS_MAP.bot,
+        vendor: 'Meta',
+      };
+    },
+  },
+
+  /* Meta-ExternalAgent */
+  {
+    test: [/meta-externalagent/i],
+    describe() {
+      return {
+        type: PLATFORMS_MAP.bot,
+        vendor: 'Meta',
+      };
+    },
+  },
+
+  /* Meta-ExternalFetcher */
+  {
+    test: [/meta-externalfetcher/i],
+    describe() {
+      return {
+        type: PLATFORMS_MAP.bot,
+        vendor: 'Meta',
+      };
+    },
+  },
+
   /* Meta Web Crawler */
   {
     test: [/facebookexternalhit/i, /facebookcatalog/i],
diff --git a/test/acceptance/useragentstrings.yml b/test/acceptance/useragentstrings.yml
index c6f5ea1..0f41035 100644
--- a/test/acceptance/useragentstrings.yml
+++ b/test/acceptance/useragentstrings.yml
@@ -2635,6 +2635,75 @@
           type: "bot"
           vendor: "Meta"
         engine: {}
+  Meta-ExternalAds:
+    -
+      ua: "meta-externalads/1.1"
+      spec:
+        browser:
+          name: "Meta-ExternalAds"
+          version: "1.1"
+        os: {}
+        platform:
+          type: "bot"
+          vendor: "Meta"
+        engine: {}
+    -
+      ua: "meta-externalads/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)"
+      spec:
+        browser:
+          name: "Meta-ExternalAds"
+          version: "1.1"
+        os: {}
+        platform:
+          type: "bot"
+          vendor: "Meta"
+        engine: {}
+  Meta-ExternalAgent:
+    -
+      ua: "meta-externalagent/1.1"
+      spec:
+        browser:
+          name: "Meta-ExternalAgent"
+          version: "1.1"
+        os: {}
+        platform:
+          type: "bot"
+          vendor: "Meta"
+        engine: {}
+    -
+      ua: "meta-externalagent/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)"
+      spec:
+        browser:
+          name: "Meta-ExternalAgent"
+          version: "1.1"
+        os: {}
+        platform:
+          type: "bot"
+          vendor: "Meta"
+        engine: {}
+  Meta-ExternalFetcher:
+    -
+      ua: "meta-externalfetcher/1.1"
+      spec:
+        browser:
+          name: "Meta-ExternalFetcher"
+          version: "1.1"
+        os: {}
+        platform:
+          type: "bot"
+          vendor: "Meta"
+        engine: {}
+    -
+      ua: "meta-externalfetcher/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)"
+      spec:
+        browser:
+          name: "Meta-ExternalFetcher"
+          version: "1.1"
+        os: {}
+        platform:
+          type: "bot"
+          vendor: "Meta"
+        engine: {}
   Diffbot:
     -
       ua: "Mozilla/5.0 (compatible; Diffbot/3.0; +http://www.diffbot.com)"