/**
* Detects the capabilities of a device from a given user agent and optionally, the HTTP Accept Headers
* @param String HTTP User Agent
* @param String HTTP Accept Header
* @return Bool matching device was found
*/
public function getDeviceCapabilitiesFromAgent($userAgent = null, $httpAccept = null)
{
$this->db->numQueries = 0;
$this->matchData = array("num_queries" => 0, "actual_root_device" => '', "match_type" => '', "matcher" => '', "match" => false, "lookup_time" => 0, "fall_back_tree" => '');
$this->lookup_start = microtime(true);
$this->foundInCache = false;
$this->capabilities = array();
// Define User Agent
$this->userAgent = is_null($userAgent) ? WurflSupport::getUserAgent() : $userAgent;
if (strlen($this->userAgent) > 255) {
$this->userAgent = substr($this->userAgent, 0, 255);
}
// Use the ultra high performance SimpleDesktopMatcher if enabled
if (TeraWurflConfig::$SIMPLE_DESKTOP_ENGINE_ENABLE) {
require_once realpath(dirname(__FILE__) . '/UserAgentMatchers/SimpleDesktopUserAgentMatcher.php');
if (SimpleDesktopUserAgentMatcher::isDesktopBrowser($userAgent)) {
$this->userAgent = WurflConstants::$SIMPLE_DESKTOP_UA;
}
}
// Define HTTP ACCEPT header. Default: DO NOT use HTTP_ACCEPT headers
//$this->httpAccept= (is_null($httpAccept))? WurflSupport::getAcceptHeader(): $httpAccept;
$this->userAgent = UserAgentUtils::cleanUserAgent($this->userAgent);
// Check cache for device
if (TeraWurflConfig::$CACHE_ENABLE) {
$cacheData = $this->db->getDeviceFromCache($this->userAgent);
// Found in cache
if ($cacheData !== false) {
$this->capabilities = $cacheData;
$this->foundInCache = true;
$deviceID = $cacheData['id'];
}
}
if (!$this->foundInCache) {
require_once realpath(dirname(__FILE__) . '/UserAgentMatchers/SimpleDesktopUserAgentMatcher.php');
// Find appropriate user agent matcher
$this->userAgentMatcher = UserAgentFactory::createUserAgentMatcher($this, $this->userAgent);
// Find the best matching WURFL ID
$deviceID = $this->getDeviceIDFromUALoose($userAgent);
// Get the capabilities of this device and all its ancestors
$this->getFullCapabilities($deviceID);
// Now add in the Tera-WURFL results array
$this->lookup_end = microtime(true);
$this->matchData['num_queries'] = $this->db->numQueries;
$this->matchData['lookup_time'] = $this->lookup_end - $this->lookup_start;
// Add the match data to the capabilities array so it gets cached
$this->addCapabilities(array($this->matchDataKey => $this->matchData));
}
if (TeraWurflConfig::$CACHE_ENABLE == true && !$this->foundInCache) {
// Since this device was not cached, cache it now.
$this->db->saveDeviceInCache($this->userAgent, $this->capabilities);
}
return $this->capabilities[$this->matchDataKey]['match'];
}
function Wall($ua = false)
{
global $_GET, $_SERVER;
if (!$ua) {
$this->ua = isset($_GET['UA']) ? $_GET['UA'] : getenv('HTTP_USER_AGENT');
} else {
$this->ua = $ua;
}
if (defined('WALL_USE_TERA_WURFL') && WALL_USE_TERA_WURFL) {
switch (TERA_WURFL_VERSION) {
case 1:
require_once WURFL_CLASS_FILE;
$this->wurfl = new tera_wurfl();
$this->wurfl->getDeviceCapabilitiesFromAgent($this->ua);
break;
case 2:
// The class file was loaded in wall_prepend.php
$this->wurfl = new TeraWurfl();
if (!$ua) {
$this->ua = WurflSupport::getUserAgent();
}
$this->wurfl->getDeviceCapabilitiesFromAgent($this->ua);
break;
case 'webservice':
$this->wurfl = new TeraWurflRemoteClient(TERA_WURFL_WEBSERVICE_URL, TeraWurflRemoteClient::$FORMAT_JSON);
if (!$ua) {
$this->ua = TeraWurflRemoteClient::getUserAgent();
}
$this->wurfl->getCapabilitiesFromAgent($this->ua, $GLOBALS['WALLWurflCapabilities']);
break;
}
} else {
$this->wurfl = new wurfl_class();
$this->wurfl->getDeviceCapabilitiesFromAgent($this->ua);
}
ob_start(array($this, '_obCallBack'));
register_shutdown_function(array($this, '_obEndFlush'));
}
