Add Facebook in-app browser. Close fnando#296.

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 - Add support for QQ Browser Mac & Mac Lite.
 - Add support for Electron Framework.
+- Add support for Facebook in-app browser.
 
 ## v2.4.0
 

lib/browser/base.rb

@@ -78,6 +78,12 @@ def msie_version
       "0"
     end
 
+    # Detect if browser if Facebook.
+    def facebook?(expected_version = nil)
+      Facebook.new(ua).match? &&
+        detect_version?(full_version, expected_version)
+    end
+
     # Detect if browser is WebKit-based.
     def webkit?(expected_version = nil)
       ua =~ /AppleWebKit/i &&

lib/browser/browser.rb

@@ -24,6 +24,7 @@
 require "browser/qq"
 require "browser/alipay"
 require "browser/electron"
+require "browser/facebook"
 
 require "browser/bot"
 require "browser/middleware"
@@ -51,6 +52,7 @@ def self.matchers
       Edge,
       InternetExplorer,
       Firefox,
+      Facebook,             # must be placed before Chrome and Safari
       Weibo,                # must be placed before Chrome and Safari
       QQ,                   # must be placed before Chrome and Safari
       Alipay,               # must be placed before Chrome and Safari

lib/browser/facebook.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+module Browser
+  class Facebook < Base
+    def id
+      :facebook
+    end
+
+    def name
+      "Facebook"
+    end
+
+    def full_version
+      ua[%r[FBAV/([\d.]+)], 1]
+    end
+
+    def match?
+      ua =~ /FBAV/
+    end
+  end
+end

test/ua.yml

@@ -26,6 +26,7 @@ CHROME: 'Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_4; en-US) AppleWebKit/53
 CHROME_OS: 'Mozilla/5.0 (X11; CrOS x86_64 3701.81.0) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.57 Safari/537.31.'
 COREMEDIA: 'Apple Mac OS X v10.6.4 CoreMedia v1.0.0.10F569'
 CUSTOM_APP: "Our App 0.0.1 (Linux; Android 4.0.3; HTC Ruby Build/IML74K; en_CA)"
+FACEBOOK: Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Mobile/14G60 [FBAN/FBIOS;FBAV/135.0.0.45.90;FBBV/66877072;FBDV/iPhone9,3;FBMD/iPhone;FBSN/iOS;FBSV/10.3.3;FBSS/2;FBCR/AT&T;FBID/phone;FBLC/en_US;FBOP/5;FBRV/0]
 FIREFOX: 'Mozilla/5.0 (X11; U; Linux i686; pl-PL; rv:1.9.0.2) Gecko/20121223 Ubuntu/9.25 (jaunty) Firefox/3.8'
 FIREFOX_ANDROID: 'Mozilla/5.0 (Android; Mobile; rv:40.0) Gecko/40.0 Firefox/40.0'
 FIREFOX_IOS: 'Mozilla/5.0 (iPhone; CPU iPhone OS 9_2 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) FxiOS/1.2 Mobile/13C75 Safari/601.1.46'

test/unit/facebook_test.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class FacebookTest < Minitest::Test
+  test "detects facebook" do
+    browser = Browser.new(Browser["FACEBOOK"])
+
+    assert_equal "Facebook", browser.name
+    assert browser.facebook?
+    assert_equal "135.0.0.45.90", browser.full_version
+    assert_equal "135", browser.version
+  end
+
+  test "detects version by range" do
+    browser = Browser.new(Browser["FACEBOOK"])
+    assert browser.facebook?(%w[>=135])
+  end
+end