php /** * sh404SEF - SEO extension for Joomla! * * @author Yannick Gaultier * @copyright (c) Yannick Gaultier 2014 * @package sh404SEF * @license http://www.gnu.org/copyleft/gpl.html GNU/GPL * @version 4.4.4.1791 * @date 2014-07-01 */ // no direct access defined('_JEXEC') or die('Restricted access'); jimport('joomla.plugin.plugin'); /** * sh404SEF system plugin * * @author */ class plgSystemShmobile extends JPlugin { /** * Checks whether a request is coming from mobile device * * @return boolean true if current page request is from a known mobile device */ static public function isMobileRequest() { // get joomla application object $app = JFactory::getApplication(); // check shLib is available if (!defined('SHLIB_VERSION')) { if ($app->isSite()) { $app ->enqueuemessage( '
sh404SEF requires the shLib system plugin to be enabled, but you appear to have disabled it. Please enable it again!', 'error'); } return false; } static $isMobile = null; static $defaultRecords = array( array('start' => 0, 'stop' => 0, 'string' => '/android|avantgo|blackberry|blazer|compal|elaine|fennec|hiptop|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile|o2|opera m(ob|in)i|palm( os)?|p(ixi|re)\/|plucker|pocket|psp|smartphone|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce; (iemobile|ppc)|xiino/i'), array('start' => 0, 'stop' => 4, 'string' => '/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|e\-|e\/|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|xda(\-|2|g)|yas\-|your|zeto|zte\-/i')); // look first for a query var if (is_null($isMobile)) { $queryVar = JRequest::getString('sh404sef_override_mobile_detection', '', 'GET'); switch ($queryVar) { case 'force_desktop': case 'force_mobile': $isMobile = $queryVar == 'force_mobile'; break; } } if (!is_null($isMobile)) { // if we already have a decision, that was because of a request var: // 1 - set a cookie, so that decision is maintained setCookie('sh404sef_override_mobile_detection', $isMobile ? 'force_mobile' : 'force_desktop', time() + 7 * 86400, '/'); // 2 - add a canonical tag to the page, to avoid search engines penalties global $shCanonicalTag; $pageInfo = sh404sefFactory::getPageInfo(); $shCanonicalTag = $pageInfo->currentSefUrl; $shCanonicalTag = Sh404sefHelperUrl::clearUrlVar($shCanonicalTag, 'sh404sef_override_mobile_detection'); } // then look for a cookie if (is_null($isMobile)) { // search Joomla! cookie vars $cookieFlag = JRequest::getString('sh404sef_override_mobile_detection', null, 'cookie'); switch ($cookieFlag) { case 'force_desktop': case 'force_mobile': $isMobile = $cookieFlag == 'force_mobile'; break; } } // look for a mobile search engine crawler if (is_null($isMobile)) { // now auto-detect jimport('joomla.environment.browser'); $browser = JBrowser::getInstance(); $userAgent = strtolower($browser->getAgentString()); if (!empty($userAgent)) { $searchEnginesMobileAgents = array('Googlebot-Mobile'); $remoteConfig = Sh404sefHelperUpdates::getRemoteConfig($forced = false); $remotes = empty($remoteConfig->config['searchenginesmobileagents']) ? array() : $remoteConfig->config['searchenginesmobileagents']; $agents = array_unique(array_merge($searchEnginesMobileAgents, $remotes)); // adjust to Google mobile new user agent string for mobiles // http://googlewebmastercentral.blogspot.fr/2014/01/a-new-googlebot-user-agent-for-crawling.html if (strpos($userAgent, 'googlebot') !== false && strpos($userAgent, 'mobile') !== false) { $isMobile = true; } else { foreach ($agents as $agent) { if (strpos($userAgent, strtolower($agent)) !== false) { $isMobile = true; break; } } } } } if (is_null($isMobile)) { // now auto-detect jimport('joomla.environment.browser'); $browser = JBrowser::getInstance(); $isMobile = $browser->isMobile(); $userAgent = strtolower($browser->getAgentString()); // detection code adapted from http://detectmobilebrowser.com/ $remoteConfig = Sh404sefHelperUpdates::getRemoteConfig($forced = false); $remotesRecords = empty($remoteConfig->config['mobiledetectionstrings']) ? array() : $remoteConfig->config['mobiledetectionstrings']; $records = empty($remotes) ? $defaultRecords : $remotesRecords; foreach ($records as $record) { $isMobile = $isMobile || (empty($record['stop']) ? preg_match($record['string'], substr($userAgent, $record['start'])) : preg_match($record['string'], substr($userAgent, $record['start'], $record['stop']))); } } // tell page information object about this if ($isMobile) { Sh404sefFactory::getPageInfo()->isMobileRequest = $isMobile; } return $isMobile; } public function onAfterRoute() { // get joomla application object $app = JFactory::getApplication(); // check shLib is available if (!defined('SHLIB_VERSION')) { return; } if ($app->isAdmin()) { return; } $enabled = $this->params->get('mobile_switch_enabled', 0); // check for mobile user if ($enabled) { // Issue a Vary HTTP header, to tell crawlers, cache and proxies // that content is changing based on user agent JResponse::setHeader('Vary', 'User-Agent'); // switch to another template if request is from a mobile device $isMobile = self::isMobileRequest(); if ($isMobile) { $template = $this->params->get('mobile_template', ''); $this->_setTemplate($template); } } } protected function _setTemplate($tpl = null) { if (empty($tpl)) { return; } else { $app = JFactory::getApplication(); $app->setTemplate($tpl); if (!defined('SHMOBILE_MOBILE_TEMPLATE_SWITCHED')) { define('SHMOBILE_MOBILE_TEMPLATE_SWITCHED', 1); } } } }

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