class.jetpack-user-agent.php — Jetpack – WP Security, Backup, Speed, & Growth 7.3.0.1

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class.jetpack-user-agent.php

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1	<?php
2
3	/**
4	* Determine if the current User Agent matches the passed $kind
5	*
6	* @param string $kind Category of mobile device to check for.
7	* Either: any, dumb, smart.
8	* @param bool $return_matched_agent Boolean indicating if the UA should be returned
9	*
10	* @return bool\|string Boolean indicating if current UA matches $kind. If
11	* $return_matched_agent is true, returns the UA string
12	*/
13	function jetpack_is_mobile( $kind = 'any', $return_matched_agent = false ) {
14	static $kinds = array( 'smart' => false, 'dumb' => false, 'any' => false );
15	static $first_run = true;
16	static $matched_agent = '';
17
18	// If an invalid kind is passed in, reset it to default.
19	if ( ! isset( $kinds[ $kind ] ) ) {
20	$kind = 'any';
21	}
22
23	if ( function_exists( 'apply_filters' ) ) {
24	/**
25	* Filter the value of jetpack_is_mobile before it is calculated.
26	*
27	* Passing a truthy value to the filter will short-circuit determining the
28	* mobile type, returning the passed value instead.
29	*
30	* @since 4.2.0
31	*
32	* @param bool\|string $matches Boolean if current UA matches $kind or not. If
33	* $return_matched_agent is true, should return the UA string
34	* @param string $kind Category of mobile device being checked
35	* @param bool $return_matched_agent Boolean indicating if the UA should be returned
36	*/
37	$pre = apply_filters( 'pre_jetpack_is_mobile', null, $kind, $return_matched_agent );
38
39	if ( null !== $pre ) {
40	return $pre;
41	}
42	}
43
44	$ua_info = new Jetpack_User_Agent_Info();
45
46	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) \|\| strpos( strtolower( $_SERVER['HTTP_USER_AGENT'] ), 'ipad' ) ) {
47	return false;
48	}
49
50	// Remove Samsung Galaxy tablets (SCH-I800) from being mobile devices
51	if ( strpos( strtolower( $_SERVER['HTTP_USER_AGENT'] ) , 'sch-i800') ) {
52	return false;
53	}
54
55	if( $ua_info->is_android_tablet() && false === $ua_info->is_kindle_touch() ) {
56	return false;
57	}
58
59	if( $ua_info->is_blackberry_tablet() ) {
60	return false;
61	}
62
63	if ( $first_run ) {
64	$first_run = false;
65
66	//checks for iPhoneTier devices & RichCSS devices
67	if ( $ua_info->isTierIphone() \|\| $ua_info->isTierRichCSS() ) {
68	$kinds['smart'] = true;
69	$matched_agent = $ua_info->matched_agent;
70	}
71
72	if ( ! $kinds['smart'] ) {
73	// if smart, we are not dumb so no need to check
74	$dumb_agents = $ua_info->dumb_agents;
75	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
76
77	foreach ( $dumb_agents as $dumb_agent ) {
78	if ( false !== strpos( $agent, $dumb_agent ) ) {
79	$kinds['dumb'] = true;
80	$matched_agent = $dumb_agent;
81
82	break;
83	}
84	}
85
86	if ( ! $kinds['dumb'] ) {
87	if ( isset( $_SERVER['HTTP_X_WAP_PROFILE'] ) ) {
88	$kinds['dumb'] = true;
89	$matched_agent = 'http_x_wap_profile';
90	} elseif ( isset( $_SERVER['HTTP_ACCEPT']) && ( preg_match( '/wap\.\|\.wap/i', $_SERVER['HTTP_ACCEPT'] ) \|\| false !== strpos( strtolower( $_SERVER['HTTP_ACCEPT'] ), 'application/vnd.wap.xhtml+xml' ) ) ) {
91	$kinds['dumb'] = true;
92	$matched_agent = 'vnd.wap.xhtml+xml';
93	}
94	}
95	}
96
97	if ( $kinds['dumb'] \|\| $kinds['smart'] ) {
98	$kinds['any'] = true;
99	}
100	}
101
102	$value = $kinds[ $kind ];
103
104	if ( $return_matched_agent ) {
105	$value = $matched_agent;
106	}
107
108	if ( function_exists( 'apply_filters' ) ) {
109	/**
110	* Filter the value of jetpack_is_mobile
111	*
112	* @since 4.2.0
113	*
114	* @param bool\|string $matches Boolean if current UA matches $kind or not. If
115	* $return_matched_agent is true, should return the UA string
116	* @param string $kind Category of mobile device being checked
117	* @param bool $return_matched_agent Boolean indicating if the UA should be returned
118	*/
119	$value = apply_filters( 'jetpack_is_mobile', $value, $kind, $return_matched_agent );
120	}
121
122	return $value;
123	}
124
125	class Jetpack_User_Agent_Info {
126
127	public $useragent;
128	public $matched_agent;
129	public $isTierIphone; //Stores whether is the iPhone tier of devices.
130	public $isTierRichCss; //Stores whether the device can probably support Rich CSS, but JavaScript (jQuery) support is not assumed.
131	public $isTierGenericMobile; //Stores whether it is another mobile device, which cannot be assumed to support CSS or JS (eg, older BlackBerry, RAZR)
132
133	private $_platform = null; //Stores the device platform name
134	const PLATFORM_WINDOWS = 'windows';
135	const PLATFORM_IPHONE = 'iphone';
136	const PLATFORM_IPOD = 'ipod';
137	const PLATFORM_IPAD = 'ipad';
138	const PLATFORM_BLACKBERRY = 'blackberry';
139	const PLATFORM_BLACKBERRY_10 = 'blackberry_10';
140	const PLATFORM_SYMBIAN = 'symbian_series60';
141	const PLATFORM_SYMBIAN_S40 = 'symbian_series40';
142	const PLATFORM_J2ME_MIDP = 'j2me_midp';
143	const PLATFORM_ANDROID = 'android';
144	const PLATFORM_ANDROID_TABLET = 'android_tablet';
145	const PLATFORM_FIREFOX_OS = 'firefoxOS';
146
147	public $dumb_agents = array(
148	'nokia', 'blackberry', 'philips', 'samsung', 'sanyo', 'sony', 'panasonic', 'webos',
149	'ericsson', 'alcatel', 'palm',
150	'windows ce', 'opera mini', 'series60', 'series40',
151	'au-mic,', 'audiovox', 'avantgo', 'blazer',
152	'danger', 'docomo', 'epoc',
153	'ericy', 'i-mode', 'ipaq', 'midp-',
154	'mot-', 'netfront', 'nitro',
155	'palmsource', 'pocketpc', 'portalmmm',
156	'rover', 'sie-',
157	'symbian', 'cldc-', 'j2me',
158	'smartphone', 'up.browser', 'up.link',
159	'up.link', 'vodafone/', 'wap1.', 'wap2.', 'mobile', 'googlebot-mobile',
160	);
161
162	//The constructor. Initializes default variables.
163	function __construct()
164	{
165	if ( !empty( $_SERVER['HTTP_USER_AGENT'] ) )
166	$this->useragent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
167	}
168
169	/**
170	* This method detects the mobile User Agent name.
171	*
172	* @return string The matched User Agent name, false otherwise.
173	*/
174	function get_mobile_user_agent_name() {
175	if( $this->is_chrome_for_iOS( ) ) //keep this check before the safari rule
176	return 'chrome-for-ios';
177	elseif ( $this->is_iphone_or_ipod( 'iphone-safari' ) )
178	return 'iphone';
179	elseif ( $this->is_ipad( 'ipad-safari' ) )
180	return 'ipad';
181	elseif ( $this->is_android_tablet() ) //keep this check before the android rule
182	return 'android_tablet';
183	elseif ( $this->is_android() )
184	return 'android';
185	elseif ( $this->is_blackberry_10() )
186	return 'blackberry_10';
187	elseif ( $this->is_blackbeberry() )
188	return 'blackberry';
189	elseif ( $this->is_WindowsPhone7() )
190	return 'win7';
191	elseif ( $this->is_windows_phone_8() )
192	return 'winphone8';
193	elseif ( $this->is_opera_mini() )
194	return 'opera-mini';
195	elseif ( $this->is_opera_mini_dumb() )
196	return 'opera-mini-dumb';
197	elseif ( $this->is_opera_mobile() )
198	return 'opera-mobi';
199	elseif ( $this->is_blackberry_tablet() )
200	return 'blackberry_tablet';
201	elseif ( $this->is_kindle_fire() )
202	return 'kindle-fire';
203	elseif ( $this->is_PalmWebOS() )
204	return 'webos';
205	elseif ( $this->is_S60_OSSBrowser() )
206	return 'series60';
207	elseif ( $this->is_firefox_os() )
208	return 'firefoxOS';
209	elseif ( $this->is_firefox_mobile() )
210	return 'firefox_mobile';
211	elseif ( $this->is_MaemoTablet() )
212	return 'maemo';
213	elseif ( $this->is_MeeGo() )
214	return 'meego';
215	elseif( $this->is_TouchPad() )
216	return 'hp_tablet';
217	elseif ( $this->is_facebook_for_iphone() )
218	return 'facebook-for-iphone';
219	elseif ( $this->is_facebook_for_ipad() )
220	return 'facebook-for-ipad';
221	elseif ( $this->is_twitter_for_iphone() )
222	return 'twitter-for-iphone';
223	elseif ( $this->is_twitter_for_ipad() )
224	return 'twitter-for-ipad';
225	elseif ( $this->is_wordpress_for_ios() )
226	return 'ios-app';
227	elseif ( $this->is_iphone_or_ipod( 'iphone-not-safari' ) )
228	return 'iphone-unknown';
229	elseif ( $this->is_ipad( 'ipad-not-safari' ) )
230	return 'ipad-unknown';
231	elseif ( $this->is_Nintendo_3DS() )
232	return 'nintendo-3ds';
233	else {
234	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
235	$dumb_agents = $this->dumb_agents;
236	foreach ( $dumb_agents as $dumb_agent ) {
237	if ( false !== strpos( $agent, $dumb_agent ) ) {
238	return $dumb_agent;
239	}
240	}
241	}
242
243	return false;
244	}
245
246	/**
247	* This method detects the mobile device's platform. All return strings are from the class constants.
248	* Note that this function returns the platform name, not the UA name/type. You should use a different function
249	* if you need to test the UA capabilites.
250	*
251	* @return string Name of the platform, false otherwise.
252	*/
253	public function get_platform() {
254	if ( isset( $this->_platform ) ) {
255	return $this->_platform;
256	}
257
258	if ( strpos( $this->useragent, 'windows phone' ) !== false ) {
259	$this->_platform = self::PLATFORM_WINDOWS;
260	}
261	elseif ( strpos( $this->useragent, 'windows ce' ) !== false ) {
262	$this->_platform = self::PLATFORM_WINDOWS;
263	}
264	elseif ( strpos( $this->useragent, 'ipad' ) !== false ) {
265	$this->_platform = self::PLATFORM_IPAD;
266	}
267	else if ( strpos( $this->useragent, 'ipod' ) !== false ) {
268	$this->_platform = self::PLATFORM_IPOD;
269	}
270	else if ( strpos( $this->useragent, 'iphone' ) !== false ) {
271	$this->_platform = self::PLATFORM_IPHONE;
272	}
273	elseif ( strpos( $this->useragent, 'android' ) !== false ) {
274	if ( $this->is_android_tablet() )
275	$this->_platform = self::PLATFORM_ANDROID_TABLET;
276	else
277	$this->_platform = self::PLATFORM_ANDROID;
278	}
279	elseif ( $this->is_kindle_fire() ) {
280	$this->_platform = self::PLATFORM_ANDROID_TABLET;
281	}
282	elseif ( $this->is_blackberry_10() ) {
283	$this->_platform = self::PLATFORM_BLACKBERRY_10;
284	}
285	elseif ( strpos( $this->useragent, 'blackberry' ) !== false ) {
286	$this->_platform = self::PLATFORM_BLACKBERRY;
287	}
288	elseif ( $this->is_blackberry_tablet() ) {
289	$this->_platform = self::PLATFORM_BLACKBERRY;
290	}
291	elseif ( $this->is_symbian_platform() ) {
292	$this->_platform = self::PLATFORM_SYMBIAN;
293	}
294	elseif ( $this->is_symbian_s40_platform() ) {
295	$this->_platform = self::PLATFORM_SYMBIAN_S40;
296	}
297	elseif ( $this->is_J2ME_platform() ) {
298	$this->_platform = self::PLATFORM_J2ME_MIDP;
299	}
300	elseif ( $this->is_firefox_os() ) {
301	$this->_platform = self::PLATFORM_FIREFOX_OS;
302	}
303	else
304	$this->_platform = false;
305
306	return $this->_platform;
307	}
308
309	/*
310	* This method detects for UA which can display iPhone-optimized web content.
311	* Includes iPhone, iPod Touch, Android, WebOS, Fennec (Firefox mobile), etc.
312	*
313	*/
314	function isTierIphone() {
315	if ( isset( $this->isTierIphone ) ) {
316	return $this->isTierIphone;
317	}
318	if ( $this->is_iphoneOrIpod() ) {
319	$this->matched_agent = 'iphone';
320	$this->isTierIphone = true;
321	$this->isTierRichCss = false;
322	$this->isTierGenericMobile = false;
323	}
324	elseif ( $this->is_android() ) {
325	$this->matched_agent = 'android';
326	$this->isTierIphone = true;
327	$this->isTierRichCss = false;
328	$this->isTierGenericMobile = false;
329	}
330	elseif ( $this->is_windows_phone_8() ) {
331	$this->matched_agent = 'winphone8';
332	$this->isTierIphone = true;
333	$this->isTierRichCss = false;
334	$this->isTierGenericMobile = false;
335	}
336	elseif ( $this->is_WindowsPhone7() ) {
337	$this->matched_agent = 'win7';
338	$this->isTierIphone = true;
339	$this->isTierRichCss = false;
340	$this->isTierGenericMobile = false;
341	}
342	elseif ( $this->is_blackberry_10() ) {
343	$this->matched_agent = 'blackberry-10';
344	$this->isTierIphone = true;
345	$this->isTierRichCss = false;
346	$this->isTierGenericMobile = false;
347	}
348	elseif ( $this->is_blackbeberry() && $this->detect_blackberry_browser_version() == 'blackberry-webkit' ) {
349	$this->matched_agent = 'blackberry-webkit';
350	$this->isTierIphone = true;
351	$this->isTierRichCss = false;
352	$this->isTierGenericMobile = false;
353	}
354	elseif ( $this->is_blackberry_tablet() ) {
355	$this->matched_agent = 'blackberry_tablet';
356	$this->isTierIphone = true;
357	$this->isTierRichCss = false;
358	$this->isTierGenericMobile = false;
359	}
360	elseif ( $this->is_PalmWebOS() ) {
361	$this->matched_agent = 'webos';
362	$this->isTierIphone = true;
363	$this->isTierRichCss = false;
364	$this->isTierGenericMobile = false;
365	}
366	elseif ( $this->is_TouchPad() ) {
367	$this->matched_agent = 'hp_tablet';
368	$this->isTierIphone = true;
369	$this->isTierRichCss = false;
370	$this->isTierGenericMobile = false;
371	}
372	elseif ( $this->is_firefox_os() ) {
373	$this->matched_agent = 'firefoxOS';
374	$this->isTierIphone = true;
375	$this->isTierRichCss = false;
376	$this->isTierGenericMobile = false;
377	}
378	elseif ( $this->is_firefox_mobile() ) {
379	$this->matched_agent = 'fennec';
380	$this->isTierIphone = true;
381	$this->isTierRichCss = false;
382	$this->isTierGenericMobile = false;
383	}
384	elseif ( $this->is_opera_mobile() ) {
385	$this->matched_agent = 'opera-mobi';
386	$this->isTierIphone = true;
387	$this->isTierRichCss = false;
388	$this->isTierGenericMobile = false;
389	}
390	elseif ( $this->is_MaemoTablet() ) {
391	$this->matched_agent = 'maemo';
392	$this->isTierIphone = true;
393	$this->isTierRichCss = false;
394	$this->isTierGenericMobile = false;
395	}
396	elseif ( $this->is_MeeGo() ) {
397	$this->matched_agent = 'meego';
398	$this->isTierIphone = true;
399	$this->isTierRichCss = false;
400	$this->isTierGenericMobile = false;
401	}
402	elseif ( $this->is_kindle_touch() ) {
403	$this->matched_agent = 'kindle-touch';
404	$this->isTierIphone = true;
405	$this->isTierRichCss = false;
406	$this->isTierGenericMobile = false;
407	}
408	elseif ( $this->is_Nintendo_3DS() ) {
409	$this->matched_agent = 'nintendo-3ds';
410	$this->isTierIphone = true;
411	$this->isTierRichCss = false;
412	$this->isTierGenericMobile = false;
413	}
414	else {
415	$this->isTierIphone = false;
416	}
417	return $this->isTierIphone;
418	}
419
420	/*
421	* This method detects for UA which are likely to be capable
422	* but may not necessarily support JavaScript.
423	* Excludes all iPhone Tier UA.
424	*
425	*/
426	function isTierRichCss(){
427	if ( isset( $this->isTierRichCss ) ) {
428	return $this->isTierRichCss;
429	}
430	if ($this->isTierIphone())
431	return false;
432
433	//The following devices are explicitly ok.
434	if ( $this->is_S60_OSSBrowser() ) {
435	$this->matched_agent = 'series60';
436	$this->isTierIphone = false;
437	$this->isTierRichCss = true;
438	$this->isTierGenericMobile = false;
439	}
440	elseif ( $this->is_opera_mini() ) {
441	$this->matched_agent = 'opera-mini';
442	$this->isTierIphone = false;
443	$this->isTierRichCss = true;
444	$this->isTierGenericMobile = false;
445	}
446	elseif ( $this->is_blackbeberry() ) {
447	$detectedDevice = $this->detect_blackberry_browser_version();
448	if ( $detectedDevice === 'blackberry-5' \|\| $detectedDevice == 'blackberry-4.7' \|\| $detectedDevice === 'blackberry-4.6' ) {
449	$this->matched_agent = $detectedDevice;
450	$this->isTierIphone = false;
451	$this->isTierRichCss = true;
452	$this->isTierGenericMobile = false;
453	}
454	}
455	else {
456	$this->isTierRichCss = false;
457	}
458
459	return $this->isTierRichCss;
460	}
461
462	// Detects if the user is using a tablet.
463	// props Corey Gilmore, BGR.com
464	static function is_tablet() {
465	return ( 0 // never true, but makes it easier to manage our list of tablet conditions
466	\|\| self::is_ipad()
467	\|\| self::is_android_tablet()
468	\|\| self::is_blackberry_tablet()
469	\|\| self::is_kindle_fire()
470	\|\| self::is_MaemoTablet()
471	\|\| self::is_TouchPad()
472	);
473	}
474
475	/*
476	* Detects if the current UA is the default iPhone or iPod Touch Browser.
477	*
478	* DEPRECATED: use is_iphone_or_ipod
479	*
480	*/
481	static function is_iphoneOrIpod(){
482
483	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
484	return false;
485
486	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
487	if ( ( strpos( $ua, 'iphone' ) !== false ) \|\| ( strpos( $ua,'ipod' ) !== false ) ) {
488	if ( self::is_opera_mini() \|\| self::is_opera_mobile() \|\| self::is_firefox_mobile() )
489	return false;
490	else
491	return true;
492	}
493	else
494	return false;
495	}
496
497
498	/*
499	* Detects if the current UA is iPhone Mobile Safari or another iPhone or iPod Touch Browser.
500	*
501	* They type can check for any iPhone, an iPhone using Safari, or an iPhone using something other than Safari.
502	*
503	* Note: If you want to check for Opera mini, Opera mobile or Firefox mobile (or any 3rd party iPhone browser),
504	* you should put the check condition before the check for 'iphone-any' or 'iphone-not-safari'.
505	* Otherwise those browsers will be 'catched' by the iphone string.
506	*
507	*/
508	static function is_iphone_or_ipod( $type = 'iphone-any' ) {
509
510	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
511	return false;
512
513	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
514	$is_iphone = ( strpos( $ua, 'iphone' ) !== false ) \|\| ( strpos( $ua,'ipod' ) !== false );
515	$is_safari = ( false !== strpos( $ua, 'safari' ) );
516
517	if ( 'iphone-safari' == $type )
518	return $is_iphone && $is_safari;
519	elseif ( 'iphone-not-safari' == $type )
520	return $is_iphone && !$is_safari;
521	else
522	return $is_iphone;
523	}
524
525
526	/*
527	* Detects if the current UA is Chrome for iOS
528	*
529	* The User-Agent string in Chrome for iOS is the same as the Mobile Safari User-Agent, with CriOS/<ChromeRevision> instead of Version/<VersionNum>.
530	* - Mozilla/5.0 (iPhone; U; CPU iPhone OS 5_1_1 like Mac OS X; en) AppleWebKit/534.46.0 (KHTML, like Gecko) CriOS/19.0.1084.60 Mobile/9B206 Safari/7534.48.3
531	*/
532	static function is_chrome_for_iOS( ) {
533	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
534	return false;
535
536	if ( self::is_iphone_or_ipod( 'iphone-safari' ) === false ) return false;
537
538	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
539
540	if ( strpos( $ua, 'crios/' ) !== false )
541	return true;
542	else
543	return false;
544	}
545
546
547	/*
548	* Detects if the current UA is Twitter for iPhone
549	*
550	* Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_5 like Mac OS X; nb-no) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8L1 Twitter for iPhone
551	* Mozilla/5.0 (iPhone; CPU iPhone OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9B206 Twitter for iPhone
552	*
553	*/
554	static function is_twitter_for_iphone( ) {
555	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
556	return false;
557
558	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
559
560	if ( strpos( $ua, 'ipad' ) !== false )
561	return false;
562
563	if ( strpos( $ua, 'twitter for iphone' ) !== false )
564	return true;
565	else
566	return false;
567	}
568
569	/*
570	* Detects if the current UA is Twitter for iPad
571	*
572	* Old version 4.X - Mozilla/5.0 (iPad; U; CPU OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8L1 Twitter for iPad
573	* Ver 5.0 or Higher - Mozilla/5.0 (iPad; CPU OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9B206 Twitter for iPhone
574	*
575	*/
576	static function is_twitter_for_ipad( ) {
577	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
578	return false;
579
580	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
581
582	if ( strpos( $ua, 'twitter for ipad' ) !== false )
583	return true;
584	elseif( strpos( $ua, 'ipad' ) !== false && strpos( $ua, 'twitter for iphone' ) !== false )
585	return true;
586	else
587	return false;
588	}
589
590
591	/*
592	* Detects if the current UA is Facebook for iPhone
593	* - Facebook 4020.0 (iPhone; iPhone OS 5.0.1; fr_FR)
594	* - Mozilla/5.0 (iPhone; U; CPU iPhone OS 5_0 like Mac OS X; en_US) AppleWebKit (KHTML, like Gecko) Mobile [FBAN/FBForIPhone;FBAV/4.0.2;FBBV/4020.0;FBDV/iPhone3,1;FBMD/iPhone;FBSN/iPhone OS;FBSV/5.0;FBSS/2; FBCR/O2;FBID/phone;FBLC/en_US;FBSF/2.0]
595	* - Mozilla/5.0 (iPhone; CPU iPhone OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9B206 [FBAN/FBIOS;FBAV/5.0;FBBV/47423;FBDV/iPhone3,1;FBMD/iPhone;FBSN/iPhone OS;FBSV/5.1.1;FBSS/2; FBCR/3ITA;FBID/phone;FBLC/en_US]
596	*/
597	static function is_facebook_for_iphone( ) {
598	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
599	return false;
600
601	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
602
603	if( false === strpos( $ua, 'iphone' ) )
604	return false;
605
606	if ( false !== strpos( $ua, 'facebook' ) && false === strpos( $ua, 'ipad' ) )
607	return true;
608	else if ( false !== strpos( $ua, 'fbforiphone' ) && false === strpos( $ua, 'tablet' ) )
609	return true;
610	else if ( false !== strpos( $ua, 'fban/fbios;' ) && false === strpos( $ua, 'tablet' ) ) //FB app v5.0 or higher
611	return true;
612	else
613	return false;
614	}
615
616	/*
617	* Detects if the current UA is Facebook for iPad
618	* - Facebook 4020.0 (iPad; iPhone OS 5.0.1; en_US)
619	* - Mozilla/5.0 (iPad; U; CPU iPhone OS 5_0 like Mac OS X; en_US) AppleWebKit (KHTML, like Gecko) Mobile [FBAN/FBForIPhone;FBAV/4.0.2;FBBV/4020.0;FBDV/iPad2,1;FBMD/iPad;FBSN/iPhone OS;FBSV/5.0;FBSS/1; FBCR/;FBID/tablet;FBLC/en_US;FBSF/1.0]
620	* - Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Mobile/10A403 [FBAN/FBIOS;FBAV/5.0;FBBV/47423;FBDV/iPad2,1;FBMD/iPad;FBSN/iPhone OS;FBSV/6.0;FBSS/1; FBCR/;FBID/tablet;FBLC/en_US]
621	*/
622	static function is_facebook_for_ipad( ) {
623	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
624	return false;
625
626	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
627
628	if ( false === strpos( $ua, 'ipad' ) )
629	return false;
630
631	if ( false !== strpos( $ua, 'facebook' ) \|\| false !== strpos( $ua, 'fbforiphone' ) \|\| false !== strpos( $ua, 'fban/fbios;' ) )
632	return true;
633	else
634	return false;
635	}
636
637	/*
638	* Detects if the current UA is WordPress for iOS
639	*/
640	static function is_wordpress_for_ios( ) {
641	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
642	return false;
643
644	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
645	if ( false !== strpos( $ua, 'wp-iphone' ) )
646	return true;
647	else
648	return false;
649	}
650
651	/*
652	* Detects if the current device is an iPad.
653	* They type can check for any iPad, an iPad using Safari, or an iPad using something other than Safari.
654	*
655	* Note: If you want to check for Opera mini, Opera mobile or Firefox mobile (or any 3rd party iPad browser),
656	* you should put the check condition before the check for 'iphone-any' or 'iphone-not-safari'.
657	* Otherwise those browsers will be 'catched' by the ipad string.
658	*
659	*/
660	static function is_ipad( $type = 'ipad-any' ) {
661
662	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
663	return false;
664
665	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
666
667	$is_ipad = ( false !== strpos( $ua, 'ipad' ) );
668	$is_safari = ( false !== strpos( $ua, 'safari' ) );
669
670	if ( 'ipad-safari' == $type )
671	return $is_ipad && $is_safari;
672	elseif ( 'ipad-not-safari' == $type )
673	return $is_ipad && !$is_safari;
674	else
675	return $is_ipad;
676	}
677
678	/*
679	* Detects if the current browser is Firefox Mobile (Fennec)
680	*
681	* http://www.useragentstring.com/pages/Fennec/
682	* Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.1.1) Gecko/20110415 Firefox/4.0.2pre Fennec/4.0.1
683	* Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b2pre) Gecko/20081015 Fennec/1.0a1
684	*/
685	static function is_firefox_mobile( ) {
686
687	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
688	return false;
689
690	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
691
692	if ( strpos( $ua, 'fennec' ) !== false )
693	return true;
694	else
695	return false;
696	}
697
698
699	/*
700	* Detects if the current browser is FirefoxOS Native browser
701	*
702	* Mozilla/5.0 (Mobile; rv:14.0) Gecko/14.0 Firefox/14.0
703	*
704	*/
705	static function is_firefox_os( ) {
706
707	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
708	return false;
709
710	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
711
712	if ( strpos( $ua, 'mozilla' ) !== false && strpos( $ua, 'mobile' ) !== false && strpos( $ua, 'gecko' ) !== false && strpos( $ua, 'firefox' ) !== false)
713	return true;
714	else
715	return false;
716	}
717
718
719	/*
720	* Detects if the current browser is Opera Mobile
721	*
722	* What is the difference between Opera Mobile and Opera Mini?
723	* - Opera Mobile is a full Internet browser for mobile devices.
724	* - Opera Mini always uses a transcoder to convert the page for a small display.
725	* (it uses Opera advanced server compression technology to compress web content before it gets to a device.
726	* The rendering engine is on Opera's server.)
727	*
728	* Opera/9.80 (Windows NT 6.1; Opera Mobi/14316; U; en) Presto/2.7.81 Version/11.00"
729	* Opera/9.50 (Nintendo DSi; Opera/507; U; en-US)
730	*/
731	static function is_opera_mobile( ) {
732
733	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
734	return false;
735
736	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
737
738	if ( strpos( $ua, 'opera' ) !== false && strpos( $ua, 'mobi' ) !== false )
739	return true;
740	elseif ( strpos( $ua, 'opera' ) !== false && strpos( $ua, 'nintendo dsi' ) !== false )
741	return true;
742	else
743	return false;
744	}
745
746
747	/*
748	* Detects if the current browser is Opera Mini
749	*
750	* Opera/8.01 (J2ME/MIDP; Opera Mini/3.0.6306/1528; en; U; ssr)
751	* Opera/9.80 (Android;Opera Mini/6.0.24212/24.746 U;en) Presto/2.5.25 Version/10.5454
752	* Opera/9.80 (iPhone; Opera Mini/5.0.019802/18.738; U; en) Presto/2.4.15
753	* Opera/9.80 (J2ME/iPhone;Opera Mini/5.0.019802/886; U; ja) Presto/2.4.15
754	* Opera/9.80 (J2ME/iPhone;Opera Mini/5.0.019802/886; U; ja) Presto/2.4.15
755	* Opera/9.80 (Series 60; Opera Mini/5.1.22783/23.334; U; en) Presto/2.5.25 Version/10.54
756	* Opera/9.80 (BlackBerry; Opera Mini/5.1.22303/22.387; U; en) Presto/2.5.25 Version/10.54
757	*
758	*/
759	static function is_opera_mini( ) {
760
761	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
762	return false;
763
764	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
765
766	if ( strpos( $ua, 'opera' ) !== false && strpos( $ua, 'mini' ) !== false )
767	return true;
768	else
769	return false;
770	}
771
772	/*
773	* Detects if the current browser is Opera Mini, but not on a smart device OS(Android, iOS, etc)
774	* Used to send users on dumb devices to m.wor
775	*/
776	static function is_opera_mini_dumb( ) {
777
778	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
779	return false;
780	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
781
782	if ( self::is_opera_mini() ) {
783	if ( strpos( $ua, 'android' ) !== false \|\| strpos( $ua, 'iphone' ) !== false \|\| strpos( $ua, 'ipod' ) !== false
784	\|\| strpos( $ua, 'ipad' ) !== false \|\| strpos( $ua, 'blackberry' ) !== false)
785	return false;
786	else
787	return true;
788	} else {
789	return false;
790	}
791	}
792
793	/*
794	* Detects if the current browser is Opera Mobile or Mini.
795	* DEPRECATED: use is_opera_mobile or is_opera_mini
796	*
797	* Opera Mini 5 Beta: Opera/9.80 (J2ME/MIDP; Opera Mini/5.0.15650/756; U; en) Presto/2.2.0
798	* Opera Mini 8: Opera/8.01 (J2ME/MIDP; Opera Mini/3.0.6306/1528; en; U; ssr)
799	*/
800	static function is_OperaMobile() {
801	_deprecated_function( __FUNCTION__, 'always', 'is_opera_mini() or is_opera_mobile()' );
802
803	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
804	return false;
805
806	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
807
808	if ( strpos( $ua, 'opera' ) !== false ) {
809	if ( ( strpos( $ua, 'mini' ) !== false ) \|\| ( strpos( $ua,'mobi' ) !== false ) )
810	return true;
811	else
812	return false;
813	} else {
814	return false;
815	}
816	}
817
818	/*
819	* Detects if the current browser is a Windows Phone 7 device.
820	* ex: Mozilla/4.0 (compatible; MSIE 7.0; Windows Phone OS 7.0; Trident/3.1; IEMobile/7.0; LG; GW910)
821	*/
822	static function is_WindowsPhone7() {
823	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
824	return false;
825
826	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
827
828	if ( false === strpos( $ua, 'windows phone os 7' ) ) {
829	return false;
830	} else {
831	if ( self::is_opera_mini() \|\| self::is_opera_mobile() \|\| self::is_firefox_mobile() )
832	return false;
833	else
834	return true;
835	}
836	}
837
838	/*
839	* Detects if the current browser is a Windows Phone 8 device.
840	* ex: Mozilla/5.0 (compatible; MSIE 10.0; Windows Phone 8.0; Trident/6.0; ARM; Touch; IEMobile/10.0; <Manufacturer>; <Device> [;<Operator>])
841	*/
842	static function is_windows_phone_8() {
843	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
844	return false;
845
846	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
847	if ( strpos( $ua, 'windows phone 8' ) === false ) {
848	return false;
849	} else {
850	return true;
851	}
852	}
853
854
855	/*
856	* Detects if the current browser is on a Palm device running the new WebOS. This EXCLUDES TouchPad.
857	*
858	* ex1: Mozilla/5.0 (webOS/1.4.0; U; en-US) AppleWebKit/532.2 (KHTML, like Gecko) Version/1.0 Safari/532.2 Pre/1.1
859	* ex2: Mozilla/5.0 (webOS/1.4.0; U; en-US) AppleWebKit/532.2 (KHTML, like Gecko) Version/1.0 Safari/532.2 Pixi/1.1
860	*
861	*/
862	static function is_PalmWebOS() {
863	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
864	return false;
865
866	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
867
868	if ( false === strpos( $ua, 'webos' ) ) {
869	return false;
870	} else {
871	if ( self::is_opera_mini() \|\| self::is_opera_mobile() \|\| self::is_firefox_mobile() )
872	return false;
873	else
874	return true;
875	}
876	}
877
878	/*
879	* Detects if the current browser is the HP TouchPad default browser. This excludes phones wt WebOS.
880	*
881	* TouchPad Emulator: Mozilla/5.0 (hp-desktop; Linux; hpwOS/2.0; U; it-IT) AppleWebKit/534.6 (KHTML, like Gecko) wOSBrowser/233.70 Safari/534.6 Desktop/1.0
882	* TouchPad: Mozilla/5.0 (hp-tablet; Linux; hpwOS/3.0.0; U; en-US) AppleWebKit/534.6 (KHTML, like Gecko) wOSBrowser/233.70 Safari/534.6 TouchPad/1.0
883	*
884	*/
885	static function is_TouchPad() {
886	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
887	return false;
888
889	$http_user_agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
890	if ( false !== strpos( $http_user_agent, 'hp-tablet' ) \|\| false !== strpos( $http_user_agent, 'hpwos' ) \|\| false !== strpos( $http_user_agent, 'touchpad' ) ) {
891	if ( self::is_opera_mini() \|\| self::is_opera_mobile() \|\| self::is_firefox_mobile() )
892	return false;
893	else
894	return true;
895	}
896	else
897	return false;
898	}
899
900
901	/*
902	* Detects if the current browser is the Series 60 Open Source Browser.
903	*
904	* OSS Browser 3.2 on E75: Mozilla/5.0 (SymbianOS/9.3; U; Series60/3.2 NokiaE75-1/110.48.125 Profile/MIDP-2.1 Configuration/CLDC-1.1 ) AppleWebKit/413 (KHTML, like Gecko) Safari/413
905	*
906	* 7.0 Browser (Nokia 5800 XpressMusic (v21.0.025)) : Mozilla/5.0 (SymbianOS/9.4; U; Series60/5.0 Nokia5800d-1/21.0.025; Profile/MIDP-2.1 Configuration/CLDC-1.1 ) AppleWebKit/413 (KHTML, like Gecko) Safari/413
907	*
908	* Browser 7.1 (Nokia N97 (v12.0.024)) : Mozilla/5.0 (SymbianOS/9.4; Series60/5.0 NokiaN97-1/12.0.024; Profile/MIDP-2.1 Configuration/CLDC-1.1; en-us) AppleWebKit/525 (KHTML, like Gecko) BrowserNG/7.1.12344
909	*
910	*/
911	static function is_S60_OSSBrowser() {
912
913	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
914	return false;
915
916	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
917	if ( self::is_opera_mini() \|\| self::is_opera_mobile() \|\| self::is_firefox_mobile() )
918	return false;
919
920	$pos_webkit = strpos( $agent, 'webkit' );
921	if ( $pos_webkit !== false ) {
922	//First, test for WebKit, then make sure it's either Symbian or S60.
923	if ( strpos( $agent, 'symbian' ) !== false \|\| strpos( $agent, 'series60' ) !== false ) {
924	return true;
925	} else
926	return false;
927	} elseif ( strpos( $agent, 'symbianos' ) !== false && strpos( $agent,'series60' ) !== false ) {
928	return true;
929	} elseif ( strpos( $agent, 'nokia' ) !== false && strpos( $agent,'series60' ) !== false ) {
930	return true;
931	}
932
933	return false;
934	}
935
936	/*
937	*
938	* Detects if the device platform is the Symbian Series 60.
939	*
940	*/
941	static function is_symbian_platform() {
942
943	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
944	return false;
945
946	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
947
948	$pos_webkit = strpos( $agent, 'webkit' );
949	if ( $pos_webkit !== false ) {
950	//First, test for WebKit, then make sure it's either Symbian or S60.
951	if ( strpos( $agent, 'symbian' ) !== false \|\| strpos( $agent, 'series60' ) !== false ) {
952	return true;
953	} else
954	return false;
955	} elseif ( strpos( $agent, 'symbianos' ) !== false && strpos( $agent,'series60' ) !== false ) {
956	return true;
957	} elseif ( strpos( $agent, 'nokia' ) !== false && strpos( $agent,'series60' ) !== false ) {
958	return true;
959	} elseif ( strpos( $agent, 'opera mini' ) !== false ) {
960	if( strpos( $agent,'symbianos' ) !== false \|\| strpos( $agent,'symbos' ) !== false \|\| strpos( $agent,'series 60' ) !== false )
961	return true;
962	}
963
964	return false;
965	}
966
967	/*
968	*
969	* Detects if the device platform is the Symbian Series 40.
970	* Nokia Browser for Series 40 is a proxy based browser, previously known as Ovi Browser.
971	* This browser will report 'NokiaBrowser' in the header, however some older version will also report 'OviBrowser'.
972	*
973	*/
974	static function is_symbian_s40_platform() {
975
976	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
977	return false;
978
979	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
980
981	if ( strpos( $agent, 'series40' ) !== false ) {
982	if( strpos( $agent,'nokia' ) !== false \|\| strpos( $agent,'ovibrowser' ) !== false \|\| strpos( $agent,'nokiabrowser' ) !== false )
983	return true;
984	}
985
986	return false;
987	}
988
989	static function is_J2ME_platform() {
990
991	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
992	return false;
993
994	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
995
996	if ( strpos( $agent, 'j2me/midp' ) !== false ) {
997	return true;
998	} elseif ( strpos( $agent, 'midp' ) !== false && strpos( $agent, 'cldc' ) ) {
999	return true;
1000	}
1001
1002	return false;
1003	}
1004
1005
1006	/*
1007	* Detects if the current UA is on one of the Maemo-based Nokia Internet Tablets.
1008	*/
1009	static function is_MaemoTablet() {
1010
1011	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1012	return false;
1013
1014	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1015
1016	$pos_maemo = strpos( $agent, 'maemo' );
1017	if ( $pos_maemo === false ) return false;
1018
1019	//Must be Linux + Tablet, or else it could be something else.
1020	if ( strpos( $agent, 'tablet' ) !== false && strpos( $agent, 'linux' ) !== false ) {
1021	if ( self::is_opera_mini() \|\| self::is_opera_mobile() \|\| self::is_firefox_mobile() )
1022	return false;
1023	else
1024	return true;
1025	} else
1026	return false;
1027	}
1028
1029	/*
1030	* Detects if the current UA is a MeeGo device (Nokia Smartphone).
1031	*/
1032	static function is_MeeGo() {
1033
1034	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1035	return false;
1036
1037	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1038
1039	if ( false === strpos( $ua, 'meego' ) ) {
1040	return false;
1041	} else {
1042	if ( self::is_opera_mini() \|\| self::is_opera_mobile() \|\| self::is_firefox_mobile() )
1043	return false;
1044	else
1045	return true;
1046	}
1047	}
1048
1049
1050	/*
1051	is_webkit() can be used to check the User Agent for an webkit generic browser
1052	*/
1053	static function is_webkit() {
1054
1055	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1056	return false;
1057
1058	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1059
1060	$pos_webkit = strpos( $agent, 'webkit' );
1061
1062	if ( $pos_webkit !== false )
1063	return true;
1064	else
1065	return false;
1066	}
1067
1068	/**
1069	* Detects if the current browser is the Native Android browser.
1070	* @return boolean true if the browser is Android otherwise false
1071	*/
1072	static function is_android() {
1073	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1074	return false;
1075
1076	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1077	$pos_android = strpos( $agent, 'android' );
1078	if ( $pos_android !== false ) {
1079	if ( self::is_opera_mini() \|\| self::is_opera_mobile() \|\| self::is_firefox_mobile() )
1080	return false;
1081	else
1082	return true;
1083	}
1084	else
1085	return false;
1086	}
1087
1088
1089	/**
1090	* Detects if the current browser is the Native Android Tablet browser.
1091	* Assumes 'Android' should be in the user agent, but not 'mobile'
1092	*
1093	* @return boolean true if the browser is Android and not 'mobile' otherwise false
1094	*/
1095	static function is_android_tablet( ) {
1096	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1097	return false;
1098
1099	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1100
1101	$pos_android = strpos( $agent, 'android' );
1102	$pos_mobile = strpos( $agent, 'mobile' );
1103	$post_android_app = strpos( $agent, 'wp-android' );
1104
1105	if ( false !== $pos_android && false === $pos_mobile && false === $post_android_app ) {
1106	if ( self::is_opera_mini() \|\| self::is_opera_mobile() \|\| self::is_firefox_mobile() )
1107	return false;
1108	else
1109	return true;
1110	} else
1111	return false;
1112	}
1113
1114	/**
1115	* Detects if the current browser is the Kindle Fire Native browser.
1116	*
1117	* Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-us; Silk/1.1.0-84) AppleWebKit/533.16 (KHTML, like Gecko) Version/5.0 Safari/533.16 Silk-Accelerated=true
1118	* Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-us; Silk/1.1.0-84) AppleWebKit/533.16 (KHTML, like Gecko) Version/5.0 Safari/533.16 Silk-Accelerated=false
1119	*
1120	* @return boolean true if the browser is Kindle Fire Native browser otherwise false
1121	*/
1122	static function is_kindle_fire( ) {
1123	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1124	return false;
1125
1126	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1127	$pos_silk = strpos( $agent, 'silk/' );
1128	$pos_silk_acc = strpos( $agent, 'silk-accelerated=' );
1129	if ( $pos_silk !== false && $pos_silk_acc !== false )
1130	return true;
1131	else
1132	return false;
1133	}
1134
1135
1136	/**
1137	* Detects if the current browser is the Kindle Touch Native browser
1138	*
1139	* Mozilla/5.0 (X11; U; Linux armv7l like Android; en-us) AppleWebKit/531.2+ (KHTML, like Gecko) Version/5.0 Safari/533.2+ Kindle/3.0+
1140	*
1141	* @return boolean true if the browser is Kindle monochrome Native browser otherwise false
1142	*/
1143	static function is_kindle_touch( ) {
1144	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1145	return false;
1146	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1147	$pos_kindle_touch = strpos( $agent, 'kindle/3.0+' );
1148	if ( false !== $pos_kindle_touch && false === self::is_kindle_fire() )
1149	return true;
1150	else
1151	return false;
1152	}
1153
1154
1155	// Detect if user agent is the WordPress.com Windows 8 app (used ONLY on the custom oauth stylesheet)
1156	static function is_windows8_auth( ) {
1157	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1158	return false;
1159
1160	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1161	$pos = strpos( $agent, 'msauthhost' );
1162	if ( false !== $pos )
1163	return true;
1164	else
1165	return false;
1166	}
1167
1168	// Detect if user agent is the WordPress.com Windows 8 app.
1169	static function is_wordpress_for_win8( ) {
1170	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1171	return false;
1172
1173	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1174	$pos = strpos( $agent, 'wp-windows8' );
1175	if ( false !== $pos )
1176	return true;
1177	else
1178	return false;
1179	}
1180
1181
1182	/*
1183	* is_blackberry_tablet() can be used to check the User Agent for a RIM blackberry tablet
1184	* The user agent of the BlackBerry® Tablet OS follows a format similar to the following:
1185	* Mozilla/5.0 (PlayBook; U; RIM Tablet OS 1.0.0; en-US) AppleWebKit/534.8+ (KHTML, like Gecko) Version/0.0.1 Safari/534.8+
1186	*
1187	*/
1188	static function is_blackberry_tablet() {
1189
1190	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1191	return false;
1192
1193	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1194	$pos_playbook = stripos( $agent, 'PlayBook' );
1195	$pos_rim_tablet = stripos( $agent, 'RIM Tablet' );
1196
1197	if ( ( false === $pos_playbook ) \|\| ( false === $pos_rim_tablet ) )
1198	{
1199	return false;
1200	} else {
1201	return true;
1202	}
1203	}
1204
1205	/*
1206	is_blackbeberry() can be used to check the User Agent for a blackberry device
1207	Note that opera mini on BB matches this rule.
1208	*/
1209	static function is_blackbeberry() {
1210
1211	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1212	return false;
1213
1214	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1215
1216	$pos_blackberry = strpos( $agent, 'blackberry' );
1217	if ( $pos_blackberry !== false ) {
1218	if ( self::is_opera_mini() \|\| self::is_opera_mobile() \|\| self::is_firefox_mobile() )
1219	return false;
1220	else
1221	return true;
1222	} else {
1223	return false;
1224	}
1225	}
1226
1227	/*
1228	is_blackberry_10() can be used to check the User Agent for a BlackBerry 10 device.
1229	*/
1230	static function is_blackberry_10() {
1231	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1232	return ( strpos( $agent, 'bb10' ) !== false ) && ( strpos( $agent, 'mobile' ) !== false );
1233	}
1234
1235	/**
1236	* Retrieve the blackberry OS version.
1237	*
1238	* Return strings are from the following list:
1239	* - blackberry-10
1240	* - blackberry-7
1241	* - blackberry-6
1242	* - blackberry-torch //only the first edition. The 2nd edition has the OS7 onboard and doesn't need any special rule.
1243	* - blackberry-5
1244	* - blackberry-4.7
1245	* - blackberry-4.6
1246	* - blackberry-4.5
1247	*
1248	* @return string Version of the BB OS.
1249	* If version is not found, get_blackbeberry_OS_version will return boolean false.
1250	*/
1251	static function get_blackbeberry_OS_version() {
1252
1253	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1254	return false;
1255
1256	if ( self::is_blackberry_10() ) {
1257	return 'blackberry-10';
1258	}
1259
1260	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1261
1262	$pos_blackberry = stripos( $agent, 'blackberry' );
1263	if ( false === $pos_blackberry ) {
1264	// not a blackberry device
1265	return false;
1266	}
1267
1268	// blackberry devices OS 6.0 or higher
1269	// Mozilla/5.0 (BlackBerry; U; BlackBerry 9670; en) AppleWebKit/534.3+ (KHTML, like Gecko) Version/6.0.0.286 Mobile Safari/534.3+
1270	// Mozilla/5.0 (BlackBerry; U; BlackBerry 9800; en) AppleWebKit/534.1+ (KHTML, Like Gecko) Version/6.0.0.141 Mobile Safari/534.1+
1271	// Mozilla/5.0 (BlackBerry; U; BlackBerry 9900; en-US) AppleWebKit/534.11+ (KHTML, like Gecko) Version/7.0.0 Mobile Safari/534.11+
1272	$pos_webkit = stripos( $agent, 'webkit' );
1273	if ( false !== $pos_webkit ) {
1274	// detected blackberry webkit browser
1275	$pos_torch = stripos( $agent, 'BlackBerry 9800' );
1276	if ( false !== $pos_torch ) {
1277	return 'blackberry-torch'; // match the torch first edition. the 2nd edition should use the OS7 and doesn't need any special rule
1278	} else {
1279	// detecting the BB OS version for devices running OS 6.0 or higher
1280	if ( preg_match( '#Version\/([\d\.]+)#i', $agent, $matches ) ) {
1281	$version = $matches[1];
1282	$version_num = explode( '.', $version );
1283	if ( false === is_array( $version_num ) \|\| count( $version_num ) <= 1 ) {
1284	return 'blackberry-6'; // not a BB device that match our rule.
1285	} else {
1286	return 'blackberry-' . $version_num[0];
1287	}
1288	} else {
1289	// if doesn't match returns the minimun version with a webkit browser. we should never fall here.
1290	return 'blackberry-6'; // not a BB device that match our rule.
1291	}
1292	}
1293	}
1294
1295	// blackberry devices <= 5.XX
1296	// BlackBerry9000/5.0.0.93 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/179
1297	if ( preg_match( '#BlackBerry\w+\/([\d\.]+)#i', $agent, $matches ) ) {
1298	$version = $matches[1];
1299	} else {
1300	return false; //not a BB device that match our rule.
1301	}
1302
1303	$version_num = explode( '.', $version );
1304
1305	if ( is_array( $version_num ) === false \|\| count( $version_num ) <= 1 ) {
1306	return false;
1307	}
1308	if ( $version_num[0] == 5 ) {
1309	return 'blackberry-5';
1310	} elseif ( $version_num[0] == 4 && $version_num[1] == 7 ) {
1311	return 'blackberry-4.7';
1312	} elseif ( $version_num[0] == 4 && $version_num[1] == 6 ) {
1313	return 'blackberry-4.6';
1314	} elseif ( $version_num[0] == 4 && $version_num[1] == 5 ) {
1315	return 'blackberry-4.5';
1316	} else {
1317	return false;
1318	}
1319
1320	}
1321
1322	/**
1323	* Retrieve the blackberry browser version.
1324	*
1325	* Return string are from the following list:
1326	* - blackberry-10
1327	* - blackberry-webkit
1328	* - blackberry-5
1329	* - blackberry-4.7
1330	* - blackberry-4.6
1331	*
1332	* @return string Type of the BB browser.
1333	* If browser's version is not found, detect_blackbeberry_browser_version will return boolean false.
1334	*/
1335	static function detect_blackberry_browser_version() {
1336
1337	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) ) {
1338	return false;
1339	}
1340
1341	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1342
1343	if ( self::is_blackberry_10() ) {
1344	return 'blackberry-10';
1345	}
1346
1347	$pos_blackberry = strpos( $agent, 'blackberry' );
1348	if ( false === $pos_blackberry ) {
1349	// not a blackberry device
1350	return false;
1351	}
1352
1353	$pos_webkit = strpos( $agent, 'webkit' );
1354
1355	if ( ! ( false === $pos_webkit ) ) {
1356	return 'blackberry-webkit';
1357	} else {
1358	if ( preg_match( '#BlackBerry\w+\/([\d\.]+)#i', $agent, $matches ) ) {
1359	$version = $matches[1];
1360	} else {
1361	return false; // not a BB device that match our rule.
1362	}
1363
1364	$version_num = explode( '.', $version );
1365
1366	if ( false === is_array( $version_num ) \|\| count( $version_num ) <= 1 ) {
1367	return false;
1368	}
1369
1370	if ( $version_num[0] == 5 ) {
1371	return 'blackberry-5';
1372	} elseif ( $version_num[0] == 4 && $version_num[1] == 7 ) {
1373	return 'blackberry-4.7';
1374	} elseif ( $version_num[0] == 4 && $version_num[1] == 6 ) {
1375	return 'blackberry-4.6';
1376	} else {
1377	// A very old BB device is found or this is a BB device that doesn't match our rules.
1378	return false;
1379	}
1380	}
1381
1382	}
1383
1384	// Checks if a visitor is coming from one of the WordPress mobile apps
1385	static function is_mobile_app() {
1386
1387	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) )
1388	return false;
1389
1390	$agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1391
1392	if ( isset( $_SERVER['X_USER_AGENT'] ) && preg_match( '\|wp-webos\|', $_SERVER['X_USER_AGENT'] ) )
1393	return true; //wp4webos 1.1 or higher
1394
1395	$app_agents = array( 'wp-android', 'wp-blackberry', 'wp-iphone', 'wp-nokia', 'wp-webos', 'wp-windowsphone' );
1396	// the mobile reader on iOS has an incorrect UA when loading the reader
1397	// currently it is the default one provided by the iOS framework which
1398	// causes problems with 2-step-auth
1399	// User-Agent WordPress/3.1.4 CFNetwork/609 Darwin/13.0.0
1400	$app_agents[] = 'wordpress/3.1';
1401
1402	foreach ( $app_agents as $app_agent ) {
1403	if ( false !== strpos( $agent, $app_agent ) )
1404	return true;
1405	}
1406	return false;
1407	}
1408
1409	/*
1410	* Detects if the current browser is Nintendo 3DS handheld.
1411	*
1412	* example: Mozilla/5.0 (Nintendo 3DS; U; ; en) Version/1.7498.US
1413	* can differ in language, version and region
1414	*/
1415	static function is_Nintendo_3DS() {
1416	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) ) {
1417	return false;
1418	}
1419
1420	$ua = strtolower( $_SERVER['HTTP_USER_AGENT'] );
1421	if ( strpos( $ua, 'nintendo 3ds' ) !== false ) {
1422	return true;
1423	}
1424	return false;
1425	}
1426
1427	/**
1428	* Was the current request made by a known bot?
1429	*
1430	* @return boolean
1431	*/
1432	static function is_bot() {
1433	static $is_bot = null;
1434
1435	if ( is_null( $is_bot ) ) {
1436	$is_bot = Jetpack_User_Agent_Info::is_bot_user_agent( $_SERVER['HTTP_USER_AGENT'] );
1437	}
1438
1439	return $is_bot;
1440	}
1441
1442	/**
1443	* Is the given user-agent a known bot?
1444	* If you want an is_bot check for the current request's UA, use is_bot() instead of passing a user-agent to this method.
1445	*
1446	* @param $ua (string) A user-agent string
1447	* @return boolean
1448	*/
1449	static function is_bot_user_agent( $ua = null ) {
1450
1451	if ( empty( $ua ) )
1452	return false;
1453
1454	$bot_agents = array(
1455	'alexa', 'altavista', 'ask jeeves', 'attentio', 'baiduspider', 'bingbot', 'chtml generic', 'crawler', 'fastmobilecrawl',
1456	'feedfetcher-google', 'firefly', 'froogle', 'gigabot', 'googlebot', 'googlebot-mobile', 'heritrix', 'httrack', 'ia_archiver', 'irlbot',
1457	'iescholar', 'infoseek', 'jumpbot', 'linkcheck', 'lycos', 'mediapartners', 'mediobot', 'motionbot', 'msnbot', 'mshots', 'openbot',
1458	'pss-webkit-request', 'pythumbnail', 'scooter', 'slurp', 'snapbot', 'spider', 'taptubot', 'technoratisnoop',
1459	'teoma', 'twiceler', 'yahooseeker', 'yahooysmcm', 'yammybot', 'ahrefsbot', 'pingdom.com_bot', 'kraken', 'yandexbot',
1460	'twitterbot', 'tweetmemebot', 'openhosebot', 'queryseekerspider', 'linkdexbot', 'grokkit-crawler',
1461	'livelapbot', 'germcrawler', 'domaintunocrawler', 'grapeshotcrawler', 'cloudflare-alwaysonline',
1462	);
1463
1464	foreach ( $bot_agents as $bot_agent ) {
1465	if ( false !== stripos( $ua, $bot_agent ) ) {
1466	return true;
1467	}
1468	}
1469
1470	return false;
1471	}
1472
1473
1474
1475	}
1476