/**
* Retrieve a file from a given $url and copy it to its final $destination.
*
* @param string $url The URL to be dereferenced.
* @param string $destination The destination of the retrieved file, on the file system.
* @return boolean|string false If an error occurs during the retrieval/copy process, or the final destination name if it succeeds.
*/
public static function retrieveFile($url, $destination)
{
$fileName = basename($url);
//check file name compatibility:
//e.g. if a file with a common name (e.g. car.jpg, house.png, sound.mp3) already exists in the destination folder
while (file_exists($destination . $fileName)) {
$lastDot = strrpos($fileName, '.');
$fileName = substr($fileName, 0, $lastDot) . '_' . substr($fileName, $lastDot);
}
// Since the file has not been downloaded yet, start downloading it using cUrl
// Only if the resource is external, else we copy it
if (!preg_match('@^' . ROOT_URL . '@', $url)) {
common_Logger::d('Downloading ' . $url);
helpers_TimeOutHelper::setTimeOutLimit(helpers_TimeOutHelper::NO_TIMEOUT);
$fp = fopen($destination . $fileName, 'w+');
$curlHandler = curl_init();
curl_setopt($curlHandler, CURLOPT_URL, $url);
curl_setopt($curlHandler, CURLOPT_FILE, $fp);
curl_setopt($curlHandler, CURLOPT_TIMEOUT, 50);
curl_setopt($curlHandler, CURLOPT_FOLLOWLOCATION, true);
//if there is an http auth on the local domain, it's mandatory to auth with curl
if (USE_HTTP_AUTH) {
$addAuth = false;
$domains = array('localhost', '127.0.0.1', ROOT_URL);
foreach ($domains as $domain) {
if (preg_match("/" . preg_quote($domain, '/') . "/", $url)) {
$addAuth = true;
}
}
if ($addAuth) {
curl_setopt($curlHandler, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($curlHandler, CURLOPT_USERPWD, USE_HTTP_USER . ":" . USE_HTTP_PASS);
}
}
curl_exec($curlHandler);
$httpCode = curl_getinfo($curlHandler, CURLINFO_HTTP_CODE);
$success = $httpCode == 200;
curl_close($curlHandler);
fclose($fp);
helpers_TimeOutHelper::reset();
} else {
$path = tao_helpers_File::getPathFromUrl($url);
common_Logger::d('Copying ' . $path);
$success = helpers_File::copy($path, $destination . $fileName);
}
if ($success == false) {
common_Logger::w('Unable to retrieve ' . $url);
return false;
} else {
return $destination . $fileName;
}
}
