version = $curl['version_number']; $this->handle = curl_init(); curl_setopt($this->handle, CURLOPT_HEADER, false); curl_setopt($this->handle, CURLOPT_RETURNTRANSFER, 1); if ($this->version >= self::CURL_7_10_5) { curl_setopt($this->handle, CURLOPT_ENCODING, ''); } if (defined('CURLOPT_PROTOCOLS')) { curl_setopt($this->handle, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS); } if (defined('CURLOPT_REDIR_PROTOCOLS')) { curl_setopt($this->handle, CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS); } } /** * Destructor */ public function __destruct() { if (is_resource($this->handle)) { curl_close($this->handle); } } /** * Perform a request * * @throws Requests_Exception On a cURL error (`curlerror`) * * @param string $url URL to request * @param array $headers Associative array of request headers * @param string|array $data Data to send either as the POST body, or as parameters in the URL for a GET/HEAD * @param array $options Request options, see {@see Requests::response()} for documentation * @return string Raw HTTP result */ public function request($url, $headers = array(), $data = array(), $options = array()) { $this->hooks = $options['hooks']; $this->setup_handle($url, $headers, $data, $options); $options['hooks']->dispatch('curl.before_send', array(&$this->handle)); if ($options['filename'] !== false) { $this->stream_handle = fopen($options['filename'], 'wb'); } $this->response_data = ''; $this->response_bytes = 0; $this->response_byte_limit = false; if ($options['max_bytes'] !== false) { $this->response_byte_limit = $options['max_bytes']; } if (isset($options['verify'])) { if ($options['verify'] === false) { curl_setopt($this->handle, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt($this->handle, CURLOPT_SSL_VERIFYPEER, 0); } elseif (is_string($options['verify'])) { curl_setopt($this->handle, CURLOPT_CAINFO, $options['verify']); } } if (isset($options['verifyname']) && $options['verifyname'] === false) { curl_setopt($this->handle, CURLOPT_SSL_VERIFYHOST, 0); } curl_exec($this->handle); $response = $this->response_data; $options['hooks']->dispatch('curl.after_send', array()); if (curl_errno($this->handle) === 23 || curl_errno($this->handle) === 61) { // Reset encoding and try again curl_setopt($this->handle, CURLOPT_ENCODING, 'none'); $this->response_data = ''; $this->response_bytes = 0; curl_exec($this->handle); $response = $this->response_data; } $this->process_response($response, $options); // Need to remove the $this reference from the curl handle. // Otherwise Requests_Transport_cURL wont be garbage collected and the curl_close() will never be called. curl_setopt($this->handle, CURLOPT_HEADERFUNCTION, null); curl_setopt($this->handle, CURLOPT_WRITEFUNCTION, null); return $this->headers; } /** * Send multiple requests simultaneously * * @param array $requests Request data * @param array $options Global options * @return array Array of Requests_Response objects (may contain Requests_Exception or string responses as well) */ public function request_multiple($requests, $options) { // If you're not requesting, we can't get any responses ¯\_(ツ)_/¯ if (empty($requests)) { return array(); } $multihandle = curl_multi_init(); $subrequests = array(); $subhandles = array(); $class = get_class($this); foreach ($requests as $id => $request) { $subrequests[$id] = new $class(); $subhandles[$id] = $subrequests[$id]->get_subrequest_handle($request['url'], $request['headers'], $request['data'], $request['options']); $request['options']['hooks']->dispatch('curl.before_multi_add', array(&$subhandles[$id])); curl_multi_add_handle($multihandle, $subhandles[$id]); } $completed = 0; $responses = array(); $request['options']['hooks']->dispatch('curl.before_multi_exec', array(&$multihandle)); do { $active = false; do { $status = curl_multi_exec($multihandle, $active); } while ($status === CURLM_CALL_MULTI_PERFORM); $to_process = array(); // Read the information as needed while ($done = curl_multi_info_read($multihandle)) { $key = array_search($done['handle'], $subhandles, true); if (!isset($to_process[$key])) { $to_process[$key] = $done; } } // Parse the finished requests before we start getting the new ones foreach ($to_process as $key => $done) { $options = $requests[$key]['options']; if (CURLE_OK !== $done['result']) { //get error string for handle. $reason = curl_error($done['handle']); $exception = new Requests_Exception_Transport_cURL( $reason, Requests_Exception_Transport_cURL::EASY, $done['handle'], $done['result'] ); $responses[$key] = $exception; $options['hooks']->dispatch('transport.internal.parse_error', array(&$responses[$key], $requests[$key])); } else { $responses[$key] = $subrequests[$key]->process_response($subrequests[$key]->response_data, $options); $options['hooks']->dispatch('transport.internal.parse_response', array(&$responses[$key], $requests[$key])); } curl_multi_remove_handle($multihandle, $done['handle']); curl_close($done['handle']); if (!is_string($responses[$key])) { $options['hooks']->dispatch('multiple.request.complete', array(&$responses[$key], $key)); } $completed++; } } while ($active || $completed < count($subrequests)); $request['options']['hooks']->dispatch('curl.after_multi_exec', array(&$multihandle)); curl_multi_close($multihandle); return $responses; } /** * Get the cURL handle for use in a multi-request * * @param string $url URL to request * @param array $headers Associative array of request headers * @param string|array $data Data to send either as the POST body, or as parameters in the URL for a GET/HEAD * @param array $options Request options, see {@see Requests::response()} for documentation * @return resource Subrequest's cURL handle */ public function &get_subrequest_handle($url, $headers, $data, $options) { $this->setup_handle($url, $headers, $data, $options); if ($options['filename'] !== false) { $this->stream_handle = fopen($options['filename'], 'wb'); } $this->response_data = ''; $this->response_bytes = 0; $this->response_byte_limit = false; if ($options['max_bytes'] !== false) { $this->response_byte_limit = $options['max_bytes']; } $this->hooks = $options['hooks']; return $this->handle; } /** * Setup the cURL handle for the given data * * @param string $url URL to request * @param array $headers Associative array of request headers * @param string|array $data Data to send either as the POST body, or as parameters in the URL for a GET/HEAD * @param array $options Request options, see {@see Requests::response()} for documentation */ protected function setup_handle($url, $headers, $data, $options) { $options['hooks']->dispatch('curl.before_request', array(&$this->handle)); // Force closing the connection for old versions of cURL (<7.22). if ( ! isset( $headers['Connection'] ) ) { $headers['Connection'] = 'close'; } $headers = Requests::flatten($headers); if (!empty($data)) { $data_format = $options['data_format']; if ($data_format === 'query') { $url = self::format_get($url, $data); $data = ''; } elseif (!is_string($data)) { $data = http_build_query($data, null, '&'); } } switch ($options['type']) { case Requests::POST: curl_setopt($this->handle, CURLOPT_POST, true); curl_setopt($this->handle, CURLOPT_POSTFIELDS, $data); break; case Requests::HEAD: curl_setopt($this->handle, CURLOPT_CUSTOMREQUEST, $options['type']); curl_setopt($this->handle, CURLOPT_NOBODY, true); break; case Requests::TRACE: curl_setopt($this->handle, CURLOPT_CUSTOMREQUEST, $options['type']); break; case Requests::PATCH: case Requests::PUT: case Requests::DELETE: case Requests::OPTIONS: default: curl_setopt($this->handle, CURLOPT_CUSTOMREQUEST, $options['type']); if (!empty($data)) { curl_setopt($this->handle, CURLOPT_POSTFIELDS, $data); } } // cURL requires a minimum timeout of 1 second when using the system // DNS resolver, as it uses `alarm()`, which is second resolution only. // There's no way to detect which DNS resolver is being used from our // end, so we need to round up regardless of the supplied timeout. // // https://github.com/curl/curl/blob/4f45240bc84a9aa648c8f7243be7b79e9f9323a5/lib/hostip.c#L606-L609 $timeout = max($options['timeout'], 1); if (is_int($timeout) || $this->version < self::CURL_7_16_2) { curl_setopt($this->handle, CURLOPT_TIMEOUT, ceil($timeout)); } else { curl_setopt($this->handle, CURLOPT_TIMEOUT_MS, round($timeout * 1000)); } if (is_int($options['connect_timeout']) || $this->version < self::CURL_7_16_2) { curl_setopt($this->handle, CURLOPT_CONNECTTIMEOUT, ceil($options['connect_timeout'])); } else { curl_setopt($this->handle, CURLOPT_CONNECTTIMEOUT_MS, round($options['connect_timeout'] * 1000)); } curl_setopt($this->handle, CURLOPT_URL, $url); curl_setopt($this->handle, CURLOPT_REFERER, $url); curl_setopt($this->handle, CURLOPT_USERAGENT, $options['useragent']); curl_setopt($this->handle, CURLOPT_HTTPHEADER, $headers); if ($options['protocol_version'] === 1.1) { curl_setopt($this->handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1); } else { curl_setopt($this->handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0); } if (true === $options['blocking']) { curl_setopt($this->handle, CURLOPT_HEADERFUNCTION, array(&$this, 'stream_headers')); curl_setopt($this->handle, CURLOPT_WRITEFUNCTION, array(&$this, 'stream_body')); curl_setopt($this->handle, CURLOPT_BUFFERSIZE, Requests::BUFFER_SIZE); } } /** * Process a response * * @param string $response Response data from the body * @param array $options Request options * @return string HTTP response data including headers */ public function process_response($response, $options) { if ($options['blocking'] === false) { $fake_headers = ''; $options['hooks']->dispatch('curl.after_request', array(&$fake_headers)); return false; } if ($options['filename'] !== false) { fclose($this->stream_handle); $this->headers = trim($this->headers); } else { $this->headers .= $response; } if (curl_errno($this->handle)) { $error = sprintf( 'cURL error %s: %s', curl_errno($this->handle), curl_error($this->handle) ); throw new Requests_Exception($error, 'curlerror', $this->handle); } $this->info = curl_getinfo($this->handle); $options['hooks']->dispatch('curl.after_request', array(&$this->headers, &$this->info)); return $this->headers; } /** * Collect the headers as they are received * * @param resource $handle cURL resource * @param string $headers Header string * @return integer Length of provided header */ public function stream_headers($handle, $headers) { // Why do we do this? cURL will send both the final response and any // interim responses, such as a 100 Continue. We don't need that. // (We may want to keep this somewhere just in case) if ($this->done_headers) { $this->headers = ''; $this->done_headers = false; } $this->headers .= $headers; if ($headers === "\r\n") { $this->done_headers = true; } return strlen($headers); } /** * Collect data as it's received * * @since 1.6.1 * * @param resource $handle cURL resource * @param string $data Body data * @return integer Length of provided data */ protected function stream_body($handle, $data) { $this->hooks->dispatch('request.progress', array($data, $this->response_bytes, $this->response_byte_limit)); $data_length = strlen($data); // Are we limiting the response size? if ($this->response_byte_limit) { if ($this->response_bytes === $this->response_byte_limit) { // Already at maximum, move on return $data_length; } if (($this->response_bytes + $data_length) > $this->response_byte_limit) { // Limit the length $limited_length = ($this->response_byte_limit - $this->response_bytes); $data = substr($data, 0, $limited_length); } } if ($this->stream_handle) { fwrite($this->stream_handle, $data); } else { $this->response_data .= $data; } $this->response_bytes += strlen($data); return $data_length; } /** * Format a URL given GET data * * @param string $url * @param array|object $data Data to build query using, see {@see https://secure.php.net/http_build_query} * @return string URL with data */ protected static function format_get($url, $data) { if (!empty($data)) { $url_parts = parse_url($url); if (empty($url_parts['query'])) { $query = $url_parts['query'] = ''; } else { $query = $url_parts['query']; } $query .= '&' . http_build_query($data, null, '&'); $query = trim($query, '&'); if (empty($url_parts['query'])) { $url .= '?' . $query; } else { $url = str_replace($url_parts['query'], $query, $url); } } return $url; } /** * Whether this transport is valid * * @codeCoverageIgnore * @return boolean True if the transport is valid, false otherwise. */ public static function test($capabilities = array()) { if (!function_exists('curl_init') || !function_exists('curl_exec')) { return false; } // If needed, check that our installed curl version supports SSL if (isset($capabilities['ssl']) && $capabilities['ssl']) { $curl_version = curl_version(); if (!(CURL_VERSION_SSL & $curl_version['features'])) { return false; } } return true; } }