diff -r 490d5cc509ed -r cf61fcea0001 wp/wp-includes/Requests/Transport/cURL.php --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/wp/wp-includes/Requests/Transport/cURL.php Mon Oct 14 17:39:30 2019 +0200 @@ -0,0 +1,542 @@ +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, $options['useragent']); + if (!empty($headers)) { + 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 $data Body data + * @return integer Length of provided data + */ + public function stream_body($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; + } +}