/**
* Provide a singleton instance to simplify integration. If you prefer
* to manage the lifecycle of the config object, then consider using
* "probe()" or "new" instead.
*
* @return CA_Config_Curl
*/
public static function singleton()
{
if (!self::$_singleton) {
global $CA_CONFIG;
self::$_singleton = self::probe($CA_CONFIG ? $CA_CONFIG : array());
}
return self::$_singleton;
}
/**
* @param string $remoteFile
* @return array
* (0 => resource, 1 => CA_Config_Curl)
*/
protected function createCurl($remoteFile)
{
$caConfig = CA_Config_Curl::probe(array('verify_peer' => (bool) CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME, 'verifySSL')));
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $remoteFile);
curl_setopt($ch, CURLOPT_HEADER, FALSE);
curl_setopt($ch, CURLOPT_ENCODING, 'gzip');
curl_setopt($ch, CURLOPT_VERBOSE, 0);
if ($this->isRedirectSupported()) {
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
}
if ($this->connectionTimeout !== NULL) {
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $this->connectionTimeout);
}
if (preg_match('/^https:/', $remoteFile) && $caConfig->isEnableSSL()) {
curl_setopt_array($ch, $caConfig->toCurlOptions());
}
return array($ch, $caConfig);
}
/**
* Download the remote zipfile.
*
* @return boolean Whether the download was successful.
*/
public function download()
{
require_once 'CA/Config/Curl.php';
$config = CRM_Core_Config::singleton();
$path = $config->extensionsDir . DIRECTORY_SEPARATOR . 'tmp';
$filename = $path . DIRECTORY_SEPARATOR . $this->key . '.zip';
if (!$this->downloadUrl) {
CRM_Core_Error::fatal('Cannot install this extension - downloadUrl is not set!');
}
// Download extension zip file ...
if (!function_exists('curl_init')) {
CRM_Core_Error::fatal('Cannot install this extension - curl is not installed!');
}
if (preg_match('/^https:/', $this->downloadUrl) && !CA_Config_Curl::singleton()->isEnableSSL()) {
CRM_Core_Error::fatal('Cannot install this extension - does not support SSL');
}
//setting the curl parameters.
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $this->downloadUrl);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_VERBOSE, 1);
if (preg_match('/^https:/', $this->downloadUrl)) {
curl_setopt_array($ch, CA_Config_Curl::singleton()->toCurlOptions());
}
//follow redirects
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
$fp = fopen($filename, "w");
if (!$fp) {
CRM_Core_Session::setStatus(ts('Unable to write to %1.<br />Is the location writable?', array(1 => $filename)));
return;
}
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_exec($ch);
if (curl_errno($ch)) {
CRM_Core_Error::debug(curl_error($ch));
CRM_Core_Error::debug(curl_errno($ch));
exit;
CRM_Core_Session::setStatus(ts('Unable to download extension from %1. Error Message: %2', array(1 => $this->downloadUrl, 2 => curl_error($ch))));
return;
} else {
curl_close($ch);
}
fclose($fp);
$this->tmpFile = $filename;
return TRUE;
}