PHP WP_Http::chunkTransferDecode方法代码示例

 /**
  * Send a HTTP request to a URI using streams with fopen().
  *
  * @access public
  * @since 2.7.0
  *
  * @param string $url
  * @param str|array $args Optional. Override the defaults.
  * @return array 'headers', 'body', 'cookies' and 'response' keys.
  */
 function request($url, $args = array())
 {
     $defaults = array('method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array());
     $r = wp_parse_args($args, $defaults);
     if (isset($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
     WP_Http::buildCookieHeader($r);
     $arrURL = parse_url($url);
     if (false === $arrURL) {
         return new WP_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 = apply_filters('https_local_ssl_verify', $ssl_verify);
     } elseif (!$is_local) {
         $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
     }
     $arrContext = array('http' => array('method' => strtoupper($r['method']), 'user_agent' => $r['user-agent'], 'max_redirects' => $r['redirection'], 'protocol_version' => (double) $r['httpversion'], 'header' => $strHeaders, 'timeout' => $r['timeout'], 'ssl' => array('verify_peer' => $ssl_verify, 'verify_host' => $ssl_verify)));
     $proxy = new WP_HTTP_Proxy();
     if ($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']) && !empty($r['body'])) {
         $arrContext['http']['content'] = $r['body'];
     }
     $context = stream_context_create($arrContext);
     if (!WP_DEBUG) {
         $handle = @fopen($url, 'r', false, $context);
     } else {
         $handle = fopen($url, 'r', false, $context);
     }
     if (!$handle) {
         return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url));
     }
     // WordPress supports PHP 4.3, which has this function. Removed sanity checking for
     // performance reasons.
     stream_set_timeout($handle, $r['timeout']);
     if (!$r['blocking']) {
         stream_set_blocking($handle, 0);
         fclose($handle);
         return array('headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array());
     }
     $strResponse = stream_get_contents($handle);
     $meta = stream_get_meta_data($handle);
     fclose($handle);
     $processedHeaders = array();
     if (isset($meta['wrapper_data']['headers'])) {
         $processedHeaders = WP_Http::processHeaders($meta['wrapper_data']['headers']);
     } else {
         $processedHeaders = WP_Http::processHeaders($meta['wrapper_data']);
     }
     if (!empty($strResponse) && isset($processedHeaders['headers']['transfer-encoding']) && 'chunked' == $processedHeaders['headers']['transfer-encoding']) {
         $strResponse = WP_Http::chunkTransferDecode($strResponse);
     }
     if (true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders['headers'])) {
         $strResponse = WP_Http_Encoding::decompress($strResponse);
     }
     return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies']);
 }

//.........这里部分代码省略.........
     }
     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']) {
         stream_set_blocking($handle, 0);
         fclose($handle);
         return array('headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array());
     }
     $strResponse = '';
     $bodyStarted = false;
     $keep_reading = true;
     $block_size = 4096;
     if (isset($r['limit_response_size'])) {
         $block_size = min($block_size, $r['limit_response_size']);
     }
     // If streaming to a file setup the file handle.
     if ($r['stream']) {
         if (!WP_DEBUG) {
             $stream_handle = @fopen($r['filename'], 'w+');
         } else {
             $stream_handle = fopen($r['filename'], 'w+');
         }
         if (!$stream_handle) {
             return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $r['filename']));
         }
         $bytes_written = 0;
         while (!feof($handle) && $keep_reading) {
             $block = fread($handle, $block_size);
             if (!$bodyStarted) {
                 $strResponse .= $block;
                 if (strpos($strResponse, "\r\n\r\n")) {
                     $process = WP_Http::processResponse($strResponse);
                     $bodyStarted = true;
                     $block = $process['body'];
                     unset($strResponse);
                     $process['body'] = '';
                 }
             }
             $this_block_size = strlen($block);
             if (isset($r['limit_response_size']) && $bytes_written + $this_block_size > $r['limit_response_size']) {
                 $this_block_size = $r['limit_response_size'] - $bytes_written;
                 $block = substr($block, 0, $this_block_size);
             }
             $bytes_written_to_file = fwrite($stream_handle, $block);
             if ($bytes_written_to_file != $this_block_size) {
                 fclose($handle);
                 fclose($stream_handle);
                 return new WP_Error('http_request_failed', __('Failed to write request to temporary file.'));
             }
             $bytes_written += $bytes_written_to_file;
             $keep_reading = !isset($r['limit_response_size']) || $bytes_written < $r['limit_response_size'];
         }
         fclose($stream_handle);
     } else {
         $header_length = 0;
         while (!feof($handle) && $keep_reading) {
             $block = fread($handle, $block_size);
             $strResponse .= $block;
             if (!$bodyStarted && strpos($strResponse, "\r\n\r\n")) {
                 $header_length = strpos($strResponse, "\r\n\r\n") + 4;
                 $bodyStarted = true;
             }
             $keep_reading = !$bodyStarted || !isset($r['limit_response_size']) || strlen($strResponse) < $header_length + $r['limit_response_size'];
         }
         $process = WP_Http::processResponse($strResponse);
         unset($strResponse);
     }
     fclose($handle);
     $arrHeaders = WP_Http::processHeaders($process['headers'], $url);
     $response = array('headers' => $arrHeaders['headers'], 'body' => null, 'response' => $arrHeaders['response'], 'cookies' => $arrHeaders['cookies'], 'filename' => $r['filename']);
     // Handle redirects.
     if (false !== ($redirect_response = WP_HTTP::handle_redirects($url, $r, $response))) {
         return $redirect_response;
     }
     // If the body was chunk encoded, then decode it.
     if (!empty($process['body']) && isset($arrHeaders['headers']['transfer-encoding']) && 'chunked' == $arrHeaders['headers']['transfer-encoding']) {
         $process['body'] = WP_Http::chunkTransferDecode($process['body']);
     }
     if (true === $r['decompress'] && true === WP_Http_Encoding::should_decode($arrHeaders['headers'])) {
         $process['body'] = WP_Http_Encoding::decompress($process['body']);
     }
     if (isset($r['limit_response_size']) && strlen($process['body']) > $r['limit_response_size']) {
         $process['body'] = substr($process['body'], 0, $r['limit_response_size']);
     }
     $response['body'] = $process['body'];
     return $response;
 }

 /**
  * Send a HTTP request to a URI using streams with fopen().
  *
  * @access public
  * @since 2.7.0
  *
  * @param string $url
  * @param str|array $args Optional. Override the defaults.
  * @return array 'headers', 'body', and 'response' keys.
  */
 function request($url, $args = array())
 {
     $defaults = array('method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null);
     $r = wp_parse_args($args, $defaults);
     if (isset($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']);
         }
     }
     $arrURL = parse_url($url);
     if (false === $arrURL) {
         return new WP_Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url));
     }
     if ('http' != $arrURL['scheme'] && 'https' != $arrURL['scheme']) {
         $url = str_replace($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'];
         }
     }
     $arrContext = array('http' => array('method' => strtoupper($r['method']), 'user_agent' => $r['user-agent'], 'max_redirects' => $r['redirection'], 'protocol_version' => (double) $r['httpversion'], 'header' => $strHeaders, 'timeout' => $r['timeout']));
     if (!is_null($r['body']) && !empty($r['body'])) {
         $arrContext['http']['content'] = $r['body'];
     }
     $context = stream_context_create($arrContext);
     if (!defined('WP_DEBUG') || defined('WP_DEBUG') && false === WP_DEBUG) {
         $handle = @fopen($url, 'r', false, $context);
     } else {
         $handle = fopen($url, 'r', false, $context);
     }
     if (!$handle) {
         return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url));
     }
     // WordPress supports PHP 4.3, which has this function. Removed sanity
     // checking for performance reasons.
     stream_set_timeout($handle, $r['timeout']);
     if (!$r['blocking']) {
         stream_set_blocking($handle, 0);
         fclose($handle);
         return array('headers' => array(), 'body' => '', 'response' => array('code', 'message'));
     }
     $strResponse = stream_get_contents($handle);
     $meta = stream_get_meta_data($handle);
     fclose($handle);
     $processedHeaders = array();
     if (isset($meta['wrapper_data']['headers'])) {
         $processedHeaders = WP_Http::processHeaders($meta['wrapper_data']['headers']);
     } else {
         $processedHeaders = WP_Http::processHeaders($meta['wrapper_data']);
     }
     if (!empty($strResponse) && isset($processedHeaders['headers']['transfer-encoding']) && 'chunked' == $processedHeaders['headers']['transfer-encoding']) {
         $strResponse = WP_Http::chunkTransferDecode($strResponse);
     }
     if (true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders)) {
         $strResponse = WP_Http_Encoding::decompress($strResponse);
     }
     return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response']);
 }