/**
* Retrieve a new sfFeed implementation instance, populated from a web feed.
* The class of the returned instance depends on the nature of the web feed.
* This method uses the sfWebBrowser plugin.
*
* @param string A web feed URI
*
* @return sfFeed A sfFeed implementation instance
*/
public static function createFromWeb($uri, $options = array())
{
if (isset($options['adapter'])) {
$browser = new sfWebBrowser(array(), $options['adapter'], isset($options['adapter_options']) ? $options['adapter_options'] : array());
} else {
$browser = new sfWebBrowser();
}
$browser->setUserAgent(isset($options['userAgent']) ? $options['userAgent'] : 'sfFeedReader/0.9');
if ($browser->get($uri)->responseIsError()) {
$error = 'The given URL (%s) returns an error (%s: %s)';
$error = sprintf($error, $uri, $browser->getResponseCode(), $browser->getResponseMessage());
throw new Exception($error);
}
$feedString = $browser->getResponseText();
return self::createFromXml($feedString, $uri);
}
