/** * 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; } }