/** * Send a HTTP request to a URI using streams with fopen(). * * @access public * @since 2.7.0 * * @param string $url * @param str|array $args Optional. Override the defaults. * @return array 'headers', 'body', 'response', 'cookies' and 'filename' keys. */ function request($url, $args = array()) { $defaults = array('method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array()); $r = array_merge($defaults, $args); if (isset($r['headers']['User-Agent'])) { $r['user-agent'] = $r['headers']['User-Agent']; unset($r['headers']['User-Agent']); } else { if (isset($r['headers']['user-agent'])) { $r['user-agent'] = $r['headers']['user-agent']; unset($r['headers']['user-agent']); } } // Construct Cookie: header if any cookies are set \Leeflets\Http::buildCookieHeader($r); $arrURL = parse_url($url); if (false === $arrURL) { return new \Leeflets\Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url)); } if ('http' != $arrURL['scheme'] && 'https' != $arrURL['scheme']) { $url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url); } // Convert Header array to string. $strHeaders = ''; if (is_array($r['headers'])) { foreach ($r['headers'] as $name => $value) { $strHeaders .= "{$name}: {$value}\r\n"; } } else { if (is_string($r['headers'])) { $strHeaders = $r['headers']; } } $is_local = isset($args['local']) && $args['local']; $ssl_verify = isset($args['sslverify']) && $args['sslverify']; if ($is_local) { $ssl_verify = $this->hook->apply('https_local_ssl_verify', $ssl_verify); } elseif (!$is_local) { $ssl_verify = $this->hook->apply('https_ssl_verify', $ssl_verify); } $arrContext = array('http' => array('method' => strtoupper($r['method']), 'user_agent' => $r['user-agent'], 'max_redirects' => $r['redirection'] + 1, 'protocol_version' => (double) $r['httpversion'], 'header' => $strHeaders, 'ignore_errors' => true, 'timeout' => $r['timeout'], 'ssl' => array('verify_peer' => $ssl_verify, 'verify_host' => $ssl_verify))); $proxy = new Proxy(); if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { $arrContext['http']['proxy'] = 'tcp://' . $proxy->host() . ':' . $proxy->port(); $arrContext['http']['request_fulluri'] = true; // We only support Basic authentication so this will only work if that is what your proxy supports. if ($proxy->use_authentication()) { $arrContext['http']['header'] .= $proxy->authentication_header() . "\r\n"; } } if (!is_null($r['body'])) { $arrContext['http']['content'] = $r['body']; } $context = stream_context_create($arrContext); if (!$this->config->debug) { $handle = @fopen($url, 'r', false, $context); } else { $handle = fopen($url, 'r', false, $context); } if (!$handle) { return new \Leeflets\Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url)); } $timeout = (int) floor($r['timeout']); $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000; stream_set_timeout($handle, $timeout, $utimeout); if (!$r['blocking']) { stream_set_blocking($handle, 0); fclose($handle); return array('headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array()); } if ($r['stream']) { if (!$this->config->debug) { $stream_handle = @fopen($r['filename'], 'w+'); } else { $stream_handle = fopen($r['filename'], 'w+'); } if (!$stream_handle) { return new \Leeflets\Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $r['filename'])); } stream_copy_to_stream($handle, $stream_handle); fclose($stream_handle); $strResponse = ''; } else { $strResponse = stream_get_contents($handle); } $meta = stream_get_meta_data($handle); fclose($handle); $processedHeaders = array(); if (isset($meta['wrapper_data']['headers'])) { $processedHeaders = \Leeflets\Http::processHeaders($meta['wrapper_data']['headers']); } else { $processedHeaders = \Leeflets\Http::processHeaders($meta['wrapper_data']); } // Streams does not provide an error code which we can use to see why the request stream stopped. // We can however test to see if a location header is present and return based on that. if (isset($processedHeaders['headers']['location']) && 0 !== $args['_redirection']) { return new \Leeflets\Error('http_request_failed', __('Too many redirects.')); } if (!empty($strResponse) && isset($processedHeaders['headers']['transfer-encoding']) && 'chunked' == $processedHeaders['headers']['transfer-encoding']) { $strResponse = \Leeflets\Http::chunkTransferDecode($strResponse); } if (true === $r['decompress'] && true === Encoding::should_decode($processedHeaders['headers'])) { $strResponse = Encoding::decompress($strResponse); } return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies'], 'filename' => $r['filename']); }
/** * Send a HTTP request to a URI using fsockopen(). * * Does not support non-blocking mode. * * @see \Leeflets\Http::request For default options descriptions. * * @since 2.7 * @access public * @param string $url URI resource. * @param str|array $args Optional. Override the defaults. * @return array 'headers', 'body', 'response', 'cookies' and 'filename' keys. */ function request($url, $args = array()) { $defaults = array('method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array()); $r = array_merge($defaults, $args); if (isset($r['headers']['User-Agent'])) { $r['user-agent'] = $r['headers']['User-Agent']; unset($r['headers']['User-Agent']); } else { if (isset($r['headers']['user-agent'])) { $r['user-agent'] = $r['headers']['user-agent']; unset($r['headers']['user-agent']); } } // Construct Cookie: header if any cookies are set \Leeflets\Http::buildCookieHeader($r); $iError = null; // Store error number $strError = null; // Store error string $arrURL = parse_url($url); $fsockopen_host = $arrURL['host']; $secure_transport = false; if (!isset($arrURL['port'])) { if (($arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https') && extension_loaded('openssl')) { $fsockopen_host = "ssl://{$fsockopen_host}"; $arrURL['port'] = 443; $secure_transport = true; } else { $arrURL['port'] = 80; } } //fsockopen has issues with 'localhost' with IPv6 with certain versions of PHP, It attempts to connect to ::1, // which fails when the server is not set up for it. For compatibility, always connect to the IPv4 address. if ('localhost' == strtolower($fsockopen_host)) { $fsockopen_host = '127.0.0.1'; } // There are issues with the HTTPS and SSL protocols that cause errors that can be safely // ignored and should be ignored. if (true === $secure_transport) { $error_reporting = error_reporting(0); } $startDelay = time(); $proxy = new Proxy(); if (!$this->config->debug) { if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { $handle = @fsockopen($proxy->host(), $proxy->port(), $iError, $strError, $r['timeout']); } else { $handle = @fsockopen($fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout']); } } else { if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { $handle = fsockopen($proxy->host(), $proxy->port(), $iError, $strError, $r['timeout']); } else { $handle = fsockopen($fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout']); } } $endDelay = time(); // If the delay is greater than the timeout then fsockopen shouldn't be used, because it will // cause a long delay. $elapseDelay = $endDelay - $startDelay > $r['timeout']; if (true === $elapseDelay) { add_option('disable_fsockopen', $endDelay, null, true); } if (false === $handle) { return new \Leeflets\Error('http_request_failed', $iError . ': ' . $strError); } $timeout = (int) floor($r['timeout']); $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000; stream_set_timeout($handle, $timeout, $utimeout); if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { //Some proxies require full URL in this field. $requestPath = $url; } else { $requestPath = $arrURL['path'] . (isset($arrURL['query']) ? '?' . $arrURL['query'] : ''); } if (empty($requestPath)) { $requestPath .= '/'; } $strHeaders = strtoupper($r['method']) . ' ' . $requestPath . ' HTTP/' . $r['httpversion'] . "\r\n"; if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { $strHeaders .= 'Host: ' . $arrURL['host'] . ':' . $arrURL['port'] . "\r\n"; } else { $strHeaders .= 'Host: ' . $arrURL['host'] . "\r\n"; } if (isset($r['user-agent'])) { $strHeaders .= 'User-agent: ' . $r['user-agent'] . "\r\n"; } if (is_array($r['headers'])) { foreach ((array) $r['headers'] as $header => $headerValue) { $strHeaders .= $header . ': ' . $headerValue . "\r\n"; } } else { $strHeaders .= $r['headers']; } if ($proxy->use_authentication()) { $strHeaders .= $proxy->authentication_header() . "\r\n"; } $strHeaders .= "\r\n"; if (!is_null($r['body'])) { $strHeaders .= $r['body']; } fwrite($handle, $strHeaders); if (!$r['blocking']) { fclose($handle); return array('headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array()); } $strResponse = ''; $bodyStarted = false; // If streaming to a file setup the file handle if ($r['stream']) { if (!$this->config->debug) { $stream_handle = @fopen($r['filename'], 'w+'); } else { $stream_handle = fopen($r['filename'], 'w+'); } if (!$stream_handle) { return new \Leeflets\Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $r['filename'])); } while (!feof($handle)) { $block = fread($handle, 4096); if ($bodyStarted) { fwrite($stream_handle, $block); } else { $strResponse .= $block; if (strpos($strResponse, "\r\n\r\n")) { $process = \Leeflets\Http::processResponse($strResponse); $bodyStarted = true; fwrite($stream_handle, $process['body']); unset($strResponse); $process['body'] = ''; } } } fclose($stream_handle); } else { while (!feof($handle)) { $strResponse .= fread($handle, 4096); } $process = \Leeflets\Http::processResponse($strResponse); unset($strResponse); } fclose($handle); if (true === $secure_transport) { error_reporting($error_reporting); } $arrHeaders = \Leeflets\Http::processHeaders($process['headers']); // If location is found, then assume redirect and redirect to location. if (isset($arrHeaders['headers']['location']) && 0 !== $r['_redirection']) { if ($r['redirection']-- > 0) { return $this->request(\Leeflets\Http::make_absolute_url($arrHeaders['headers']['location'], $url), $r); } else { return new \Leeflets\Error('http_request_failed', __('Too many redirects.')); } } // If the body was chunk encoded, then decode it. if (!empty($process['body']) && isset($arrHeaders['headers']['transfer-encoding']) && 'chunked' == $arrHeaders['headers']['transfer-encoding']) { $process['body'] = \Leeflets\Http::chunkTransferDecode($process['body']); } if (true === $r['decompress'] && true === Encoding::should_decode($arrHeaders['headers'])) { $process['body'] = Encoding::decompress($process['body']); } return array('headers' => $arrHeaders['headers'], 'body' => $process['body'], 'response' => $arrHeaders['response'], 'cookies' => $arrHeaders['cookies'], 'filename' => $r['filename']); }