public function _doCheck()
{
// if not set to auto check and not forced to do so
// when user click on "check updates" button
// we don't actually try to get updates info
$sefConfig =& Sh404sefFactory::getConfig();
// prepare a default response object
$response = new stdClass();
$response->status = true;
$response->statusMessage = JText::_('COM_SH404SEF_CLICK_TO_CHECK_UPDATES');
$response->current = 0;
$response->note = '';
$response->changelogLink = '';
$response->minVersionToUpgrade = 0;
$response->maxVersionToUpgrade = 0;
$response->shouldUpdate = false;
$response->excludes = array();
// check if allowed to auto check, w/o user clicking on button
if (!$sefConfig->autoCheckNewVersion && empty(self::$_forced['updates'])) {
return $response;
}
// get an http client
require_once JPATH_ROOT . DS . 'administrator' . DS . 'components' . DS . 'com_sh404sef' . DS . 'lib' . DS . 'Zend' . DS . 'Http' . DS . 'Client.php';
$hClient = new Sh_Zend_Http_Client();
$hClient->setConfig(array('maxredirects' => 0, 'timeout' => 10));
// find where to call ...
$remoteConfig = Sh404sefHelperUpdates::getRemoteConfig($forced = false);
// hardcoded default update server
$defaultServers = array(array('url' => self::$_endPoint . '/' . self::$_updateFile));
// try to read from remote, central, configuration file
$remoteServers = empty($remoteConfig->config['updateservers']) ? array() : $remoteConfig->config['updateservers'];
// merge default and remote
$servers = array_merge($remoteServers, $defaultServers);
// check for urls in both defaults and remote
$serverList = array();
foreach ($servers as $server) {
$serverList[] = $server['url'];
}
$serverList = array_unique($serverList);
// now iterate over server list, until we find one that responds
foreach ($serverList as $server) {
$response->status = true;
// actually place a call to find about available updates
try {
$hClient->setUri($server);
} catch (Exception $e) {
// move to next update server in list
$response->status = false;
continue;
}
// request file content
$adapters = array('Sh_Zend_Http_Client_Adapter_Curl', 'Sh_Zend_Http_Client_Adapter_Socket');
$rawResponse = null;
foreach ($adapters as $adapter) {
try {
$hClient->setAdapter($adapter);
$rawResponse = $hClient->request();
break;
} catch (Exception $e) {
// need that to be Exception, so as to catche Sh_Zend_Exceptions.. as well
// we failed, let's try another method
}
}
// (un)set flag if we have a response
if (empty($rawResponse)) {
$response->status = false;
$msg = 'unknown code';
$response->statusMessage = JText::sprintf('COM_SH404SEF_COULD_NOT_CHECK_FOR_NEW_VERSION', $msg);
} else {
if (!is_object($rawResponse) || $rawResponse->isError()) {
$response->status = false;
$msg = method_exists($rawResponse, 'getStatus') ? $rawResponse->getStatus() : 'unknown code';
$response->statusMessage = JText::sprintf('COM_SH404SEF_COULD_NOT_CHECK_FOR_NEW_VERSION', $msg);
} else {
// communication was fine, check the file type
$type = $rawResponse->getHeader('Content-type');
if (strtolower($type) != 'text/xml' && strtolower($type) != 'application/xml') {
$response->status = false;
$response->statusMessage = JText::sprintf('COM_SH404SEF_COULD_NOT_CHECK_FOR_NEW_VERSION', $rawResponse->getStatus());
}
}
}
// if there was a valid response, break out of
// loop over available update servers
if ($response->status) {
break;
}
}
// if we were not able to contact any update server
// return this
if (!$response->status) {
return $response;
}
// get an xml object and parse the response
$xml =& JFactory::getXMLparser('Simple');
$xml->loadString($rawResponse->getBody());
// into our response object
// first version of version check used an xml file that could only hold one
// version data set. So we only iterate over the "update" group if it exists
if (empty($xml->document->update)) {
$response = self::_readUpdateInformation($xml->document, $response);
} else {
foreach ($xml->document->update as $updateRecord) {
$product = $updateRecord->product[0]->data();
// only use if this update record is for us
if ($product == self::$_product) {
$response = self::_readUpdateInformation($updateRecord, $response);
// find if user should update
$response = Sh404sefHelperUpdates::_updateRequired($response);
// if found an update, break out
if ($response->shouldUpdate) {
break;
}
}
}
}
// check if this is a valid information file
return $response;
}
public function _doCheck()
{
// if not set to auto check and not forced to do so
// when user click on "check updates" button
// we don't actually try to get updates info
$sefConfig =& shRouter::shGetConfig();
// prepare a default response object
$response = new stdClass();
$response->status = true;
$response->statusMessage = JText16::_('COM_SH404SEF_CLICK_TO_CHECK_UPDATES');
$response->current = 0;
$response->note = '';
$response->changelogLink = '';
$response->minVersionToUpgrade = 0;
$response->maxVersionToUpgrade = 0;
$response->shouldUpdate = false;
$response->excludes = array();
// check if allowed to auto check, w/o user clicking on button
if (!$sefConfig->autoCheckNewVersion && !self::$_forced) {
return $response;
}
// get an http client
require_once JPATH_COMPONENT . DS . 'lib' . DS . 'Zend' . DS . 'Http' . DS . 'Client.php';
$hClient = new Zend_Http_Client();
// set params
$hClient->setUri(self::$_endPoint . '/' . self::$_product);
$hClient->setConfig(array('maxredirects' => 0, 'timeout' => 10));
// request file content
$adapters = array('Zend_Http_Client_Adapter_Curl', 'Zend_Http_Client_Adapter_Socket');
$rawResponse = null;
foreach ($adapters as $adapter) {
try {
$hClient->setAdapter($adapter);
$rawResponse = $hClient->request();
break;
} catch (Exception $e) {
// need that to be Exception, so as to catche Zend_Exceptions.. as well
// we failed, let's try another method
}
}
// return if error
if (!is_object($rawResponse) || $rawResponse->isError()) {
$response->status = false;
$msg = method_exists($rawResponse, 'getStatus') ? $rawResponse->getStatus() : 'unknown code';
$response->statusMessage = JText16::sprintf('COM_SH404SEF_COULD_NOT_CHECK_FOR_NEW_VERSION', $msg);
return $response;
}
// check the file
$type = $rawResponse->getHeader('Content-type');
if (strtolower($type) != 'text/xml' && strtolower($type) != 'application/xml') {
$response->status = false;
$response->statusMessage = JText16::sprintf('COM_SH404SEF_COULD_NOT_CHECK_FOR_NEW_VERSION', $rawResponse->getStatus());
return $response;
}
// should be OK then
$response->status = true;
// get an xml object and parse the response
$xml =& JFactory::getXMLparser('Simple');
$xml->loadString($rawResponse->getBody());
// into our response object
$response->current = $xml->document->current[0]->data();
$response->note = $xml->document->note[0]->data();
$response->changelogLink = $xml->document->changelogLink[0]->data();
$response->downloadLink = $xml->document->downloadLink[0]->data();
$response->minVersionToUpgrade = $xml->document->minVersionToUpgrade[0]->data();
$response->maxVersionToUpgrade = $xml->document->maxVersionToUpgrade[0]->data();
$rawExcludes = $xml->document->exclude;
$response->excludes = array();
if (!empty($rawExcludes)) {
foreach ($rawExcludes as $exclude) {
$response->excludes[] = $exclude->data();
}
}
// find if user should update
$response = Sh404sefHelperUpdates::_updateRequired($response);
// check if this is a valid information file
return $response;
}
