/cake/libs/http_socket.php
PHP | 978 lines | 616 code | 84 blank | 278 comment | 132 complexity | 7d0fdd41915cf96c727b4b747301a4f0 MD5 | raw file
- <?php
- /* SVN FILE: $Id$ */
- /**
- * HTTP Socket connection class.
- *
- * PHP versions 4 and 5
- *
- * CakePHP(tm) : Rapid Development Framework (http://www.cakephp.org)
- * Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
- *
- * Licensed under The MIT License
- * Redistributions of files must retain the above copyright notice.
- *
- * @filesource
- * @copyright Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
- * @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
- * @package cake
- * @subpackage cake.cake.libs
- * @since CakePHP(tm) v 1.2.0
- * @version $Revision$
- * @modifiedby $LastChangedBy$
- * @lastmodified $Date$
- * @license http://www.opensource.org/licenses/mit-license.php The MIT License
- */
- App::import('Core', array('Socket', 'Set', 'Router'));
- /**
- * Cake network socket connection class.
- *
- * Core base class for HTTP network communication.
- *
- * @package cake
- * @subpackage cake.cake.libs
- */
- class HttpSocket extends CakeSocket {
- /**
- * Object description
- *
- * @var string
- * @access public
- */
- var $description = 'HTTP-based DataSource Interface';
- /**
- * When one activates the $quirksMode by setting it to true, all checks meant to enforce RFC 2616 (HTTP/1.1 specs)
- * will be disabled and additional measures to deal with non-standard responses will be enabled.
- *
- * @var boolean
- * @access public
- */
- var $quirksMode = false;
- /**
- * The default values to use for a request
- *
- * @var array
- * @access public
- */
- var $request = array(
- 'method' => 'GET',
- 'uri' => array(
- 'scheme' => 'http',
- 'host' => null,
- 'port' => 80,
- 'user' => null,
- 'pass' => null,
- 'path' => null,
- 'query' => null,
- 'fragment' => null
- ),
- 'auth' => array(
- 'method' => 'Basic',
- 'user' => null,
- 'pass' => null
- ),
- 'version' => '1.1',
- 'body' => '',
- 'line' => null,
- 'header' => array(
- 'Connection' => 'close',
- 'User-Agent' => 'CakePHP'
- ),
- 'raw' => null,
- 'cookies' => array()
- );
- /**
- * The default structure for storing the response
- *
- * @var array
- * @access public
- */
- var $response = array(
- 'raw' => array(
- 'status-line' => null,
- 'header' => null,
- 'body' => null,
- 'response' => null
- ),
- 'status' => array(
- 'http-version' => null,
- 'code' => null,
- 'reason-phrase' => null
- ),
- 'header' => array(),
- 'body' => '',
- 'cookies' => array()
- );
- /**
- * Default configuration settings for the HttpSocket
- *
- * @var array
- * @access public
- */
- var $config = array(
- 'persistent' => false,
- 'host' => 'localhost',
- 'protocol' => 'tcp',
- 'port' => 80,
- 'timeout' => 30,
- 'request' => array(
- 'uri' => array(
- 'scheme' => 'http',
- 'host' => 'localhost',
- 'port' => 80
- ),
- 'auth' => array(
- 'method' => 'Basic',
- 'user' => null,
- 'pass' => null
- ),
- 'cookies' => array()
- )
- );
- /**
- * String that represents a line break.
- *
- * @var string
- * @access public
- */
- var $lineBreak = "\r\n";
- /**
- * Build an HTTP Socket using the specified configuration.
- *
- * @param array $config Configuration
- */
- function __construct($config = array()) {
- if (is_string($config)) {
- $this->configUri($config);
- } elseif (is_array($config)) {
- if (isset($config['request']['uri']) && is_string($config['request']['uri'])) {
- $this->configUri($config['request']['uri']);
- unset($config['request']['uri']);
- }
- $this->config = Set::merge($this->config, $config);
- }
- parent::__construct($this->config);
- }
- /**
- * Issue the specified request.
- *
- * @param mixed $request Either an URI string, or an array defining host/uri
- * @return mixed false on error, request body on success
- * @access public
- */
- function request($request = array()) {
- $this->reset(false);
- if (is_string($request)) {
- $request = array('uri' => $request);
- } elseif (!is_array($request)) {
- return false;
- }
- if (!isset($request['uri'])) {
- $request['uri'] = null;
- }
- $uri = $this->parseUri($request['uri']);
- if (!isset($uri['host'])) {
- $host = $this->config['host'];
- }
- if (isset($request['host'])) {
- $host = $request['host'];
- unset($request['host']);
- }
- $request['uri'] = $this->url($request['uri']);
- $request['uri'] = $this->parseUri($request['uri'], true);
- $this->request = Set::merge($this->request, $this->config['request'], $request);
- $this->configUri($this->request['uri']);
- if (isset($host)) {
- $this->config['host'] = $host;
- }
- $cookies = null;
- if (is_array($this->request['header'])) {
- $this->request['header'] = $this->parseHeader($this->request['header']);
- if (!empty($this->request['cookies'])) {
- $cookies = $this->buildCookies($this->request['cookies']);
- }
- $this->request['header'] = array_merge(array('Host' => $this->request['uri']['host']), $this->request['header']);
- }
- if (isset($this->request['auth']['user']) && isset($this->request['auth']['pass'])) {
- $this->request['header']['Authorization'] = $this->request['auth']['method'] ." ". base64_encode($this->request['auth']['user'] .":".$this->request['auth']['pass']);
- }
- if (isset($this->request['uri']['user']) && isset($this->request['uri']['pass'])) {
- $this->request['header']['Authorization'] = $this->request['auth']['method'] ." ". base64_encode($this->request['uri']['user'] .":".$this->request['uri']['pass']);
- }
- if (is_array($this->request['body'])) {
- $this->request['body'] = $this->httpSerialize($this->request['body']);
- }
- if (!empty($this->request['body']) && !isset($this->request['header']['Content-Type'])) {
- $this->request['header']['Content-Type'] = 'application/x-www-form-urlencoded';
- }
- if (!empty($this->request['body']) && !isset($this->request['header']['Content-Length'])) {
- $this->request['header']['Content-Length'] = strlen($this->request['body']);
- }
- $connectionType = @$this->request['header']['Connection'];
- $this->request['header'] = $this->buildHeader($this->request['header']).$cookies;
- if (empty($this->request['line'])) {
- $this->request['line'] = $this->buildRequestLine($this->request);
- }
- if ($this->quirksMode === false && $this->request['line'] === false) {
- return $this->response = false;
- }
- if ($this->request['line'] !== false) {
- $this->request['raw'] = $this->request['line'];
- }
- if ($this->request['header'] !== false) {
- $this->request['raw'] .= $this->request['header'];
- }
- $this->request['raw'] .= "\r\n";
- $this->request['raw'] .= $this->request['body'];
- $this->write($this->request['raw']);
- $response = null;
- while ($data = $this->read()) {
- $response .= $data;
- }
- if ($connectionType == 'close') {
- $this->disconnect();
- }
- $this->response = $this->parseResponse($response);
- if (!empty($this->response['cookies'])) {
- $this->config['request']['cookies'] = array_merge($this->config['request']['cookies'], $this->response['cookies']);
- }
- return $this->response['body'];
- }
- /**
- * Issues a GET request to the specified URI, query, and request.
- *
- * @param mixed $uri URI to request (see {@link parseUri()})
- * @param array $query Query to append to URI
- * @param array $request An indexed array with indexes such as 'method' or uri
- * @return mixed Result of request
- * @access public
- */
- function get($uri = null, $query = array(), $request = array()) {
- if (!empty($query)) {
- $uri =$this->parseUri($uri);
- if (isset($uri['query'])) {
- $uri['query'] = array_merge($uri['query'], $query);
- } else {
- $uri['query'] = $query;
- }
- $uri = $this->buildUri($uri);
- }
- $request = Set::merge(array('method' => 'GET', 'uri' => $uri), $request);
- return $this->request($request);
- }
- /**
- * Issues a POST request to the specified URI, query, and request.
- *
- * @param mixed $uri URI to request (see {@link parseUri()})
- * @param array $query Query to append to URI
- * @param array $request An indexed array with indexes such as 'method' or uri
- * @return mixed Result of request
- * @access public
- */
- function post($uri = null, $data = array(), $request = array()) {
- $request = Set::merge(array('method' => 'POST', 'uri' => $uri, 'body' => $data), $request);
- return $this->request($request);
- }
- /**
- * Issues a PUT request to the specified URI, query, and request.
- *
- * @param mixed $uri URI to request (see {@link parseUri()})
- * @param array $query Query to append to URI
- * @param array $request An indexed array with indexes such as 'method' or uri
- * @return mixed Result of request
- * @access public
- */
- function put($uri = null, $data = array(), $request = array()) {
- $request = Set::merge(array('method' => 'PUT', 'uri' => $uri, 'body' => $data), $request);
- return $this->request($request);
- }
- /**
- * Issues a DELETE request to the specified URI, query, and request.
- *
- * @param mixed $uri URI to request (see {@link parseUri()})
- * @param array $query Query to append to URI
- * @param array $request An indexed array with indexes such as 'method' or uri
- * @return mixed Result of request
- * @access public
- */
- function delete($uri = null, $data = array(), $request = array()) {
- $request = Set::merge(array('method' => 'DELETE', 'uri' => $uri, 'body' => $data), $request);
- return $this->request($request);
- }
- /**
- * undocumented function
- *
- * @param unknown $url
- * @param unknown $uriTemplate
- * @return void
- * @access public
- */
- function url($url = null, $uriTemplate = null) {
- if (is_null($url)) {
- $url = '/';
- }
- if (is_string($url)) {
- if ($url{0} == '/') {
- $url = $this->config['request']['uri']['host'].':'.$this->config['request']['uri']['port'] . $url;
- }
- if (!preg_match('/^.+:\/\/|\*|^\//', $url)) {
- $url = $this->config['request']['uri']['scheme'].'://'.$url;
- }
- } elseif (!is_array($url) && !empty($url)) {
- return false;
- }
- $base = array_merge($this->config['request']['uri'], array('scheme' => array('http', 'https'), 'port' => array(80, 443)));
- $url = $this->parseUri($url, $base);
- if (empty($url)) {
- $url = $this->config['request']['uri'];
- }
- if (!empty($uriTemplate)) {
- return $this->buildUri($url, $uriTemplate);
- }
- return $this->buildUri($url);
- }
- /**
- * Parses the given message and breaks it down in parts.
- *
- * @param string $message Message to parse
- * @return array Parsed message (with indexed elements such as raw, status, header, body)
- * @access protected
- */
- function parseResponse($message) {
- if (is_array($message)) {
- return $message;
- } elseif (!is_string($message)) {
- return false;
- }
- static $responseTemplate;
- if (empty($responseTemplate)) {
- $classVars = get_class_vars(__CLASS__);
- $responseTemplate = $classVars['response'];
- }
- $response = $responseTemplate;
- if (!preg_match("/^(.+\r\n)(.*)(?<=\r\n)\r\n/Us", $message, $match)) {
- return false;
- }
- list($null, $response['raw']['status-line'], $response['raw']['header']) = $match;
- $response['raw']['response'] = $message;
- $response['raw']['body'] = substr($message, strlen($match[0]));
- if (preg_match("/(.+) ([0-9]{3}) (.+)\r\n/DU", $response['raw']['status-line'], $match)) {
- $response['status']['http-version'] = $match[1];
- $response['status']['code'] = (int)$match[2];
- $response['status']['reason-phrase'] = $match[3];
- }
- $response['header'] = $this->parseHeader($response['raw']['header']);
- $decoded = $this->decodeBody($response['raw']['body'], @$response['header']['Transfer-Encoding']);
- $response['body'] = $decoded['body'];
- if (!empty($decoded['header'])) {
- $response['header'] = $this->parseHeader($this->buildHeader($response['header']).$this->buildHeader($decoded['header']));
- }
- if (!empty($response['header'])) {
- $response['cookies'] = $this->parseCookies($response['header']);
- }
- foreach ($response['raw'] as $field => $val) {
- if ($val === '') {
- $response['raw'][$field] = null;
- }
- }
- return $response;
- }
- /**
- * Generic function to decode a $body with a given $encoding. Returns either an array with the keys
- * 'body' and 'header' or false on failure.
- *
- * @param string $body A string continaing the body to decode
- * @param mixed $encoding Can be false in case no encoding is being used, or a string representing the encoding
- * @return mixed Array or false
- * @access protected
- */
- function decodeBody($body, $encoding = 'chunked') {
- if (!is_string($body)) {
- return false;
- }
- if (empty($encoding)) {
- return array('body' => $body, 'header' => false);
- }
- $decodeMethod = 'decode'.Inflector::camelize(str_replace('-', '_', $encoding)).'Body';
- if (!is_callable(array(&$this, $decodeMethod))) {
- if (!$this->quirksMode) {
- trigger_error(sprintf(__('HttpSocket::decodeBody - Unknown encoding: %s. Activate quirks mode to surpress error.', true), h($encoding)), E_USER_WARNING);
- }
- return array('body' => $body, 'header' => false);
- }
- return $this->{$decodeMethod}($body);
- }
- /**
- * Decodes a chunked message $body and returns either an array with the keys 'body' and 'header' or false as
- * a result.
- *
- * @param string $body A string continaing the chunked body to decode
- * @return mixed Array or false
- * @access protected
- */
- function decodeChunkedBody($body) {
- if (!is_string($body)) {
- return false;
- }
- $decodedBody = null;
- $chunkLength = null;
- while ($chunkLength !== 0) {
- if (!preg_match("/^([0-9a-f]+) *(?:;(.+)=(.+))?\r\n/iU", $body, $match)) {
- if (!$this->quirksMode) {
- trigger_error(__('HttpSocket::decodeChunkedBody - Could not parse malformed chunk. Activate quirks mode to do this.', true), E_USER_WARNING);
- return false;
- }
- break;
- }
- $chunkSize = 0;
- $hexLength = 0;
- $chunkExtensionName = '';
- $chunkExtensionValue = '';
- if (isset($match[0])) {
- $chunkSize = $match[0];
- }
- if (isset($match[1])) {
- $hexLength = $match[1];
- }
- if (isset($match[2])) {
- $chunkExtensionName = $match[2];
- }
- if (isset($match[3])) {
- $chunkExtensionValue = $match[3];
- }
- $body = substr($body, strlen($chunkSize));
- $chunkLength = hexdec($hexLength);
- $chunk = substr($body, 0, $chunkLength);
- if (!empty($chunkExtensionName)) {
- /**
- * @todo See if there are popular chunk extensions we should implement
- */
- }
- $decodedBody .= $chunk;
- if ($chunkLength !== 0) {
- $body = substr($body, $chunkLength+strlen("\r\n"));
- }
- }
- $entityHeader = false;
- if (!empty($body)) {
- $entityHeader = $this->parseHeader($body);
- }
- return array('body' => $decodedBody, 'header' => $entityHeader);
- }
- /**
- * Parses and sets the specified URI into current request configuration.
- *
- * @param mixed $uri URI (see {@link parseUri()})
- * @return array Current configuration settings
- * @access protected
- */
- function configUri($uri = null) {
- if (empty($uri)) {
- return false;
- }
- if (is_array($uri)) {
- $uri = $this->parseUri($uri);
- } else {
- $uri = $this->parseUri($uri, true);
- }
- if (!isset($uri['host'])) {
- return false;
- }
- $config = array(
- 'request' => array(
- 'uri' => array_intersect_key($uri, $this->config['request']['uri']),
- 'auth' => array_intersect_key($uri, $this->config['request']['auth'])
- )
- );
- $this->config = Set::merge($this->config, $config);
- $this->config = Set::merge($this->config, array_intersect_key($this->config['request']['uri'], $this->config));
- return $this->config;
- }
- /**
- * Takes a $uri array and turns it into a fully qualified URL string
- *
- * @param array $uri A $uri array, or uses $this->config if left empty
- * @param string $uriTemplate The Uri template/format to use
- * @return string A fully qualified URL formated according to $uriTemplate
- * @access protected
- */
- function buildUri($uri = array(), $uriTemplate = '%scheme://%user:%pass@%host:%port/%path?%query#%fragment') {
- if (is_string($uri)) {
- $uri = array('host' => $uri);
- }
- $uri = $this->parseUri($uri, true);
- if (!is_array($uri) || empty($uri)) {
- return false;
- }
- $uri['path'] = preg_replace('/^\//', null, $uri['path']);
- $uri['query'] = $this->httpSerialize($uri['query']);
- $stripIfEmpty = array(
- 'query' => '?%query',
- 'fragment' => '#%fragment',
- 'user' => '%user:%pass@'
- );
- foreach ($stripIfEmpty as $key => $strip) {
- if (empty($uri[$key])) {
- $uriTemplate = str_replace($strip, null, $uriTemplate);
- }
- }
- $defaultPorts = array('http' => 80, 'https' => 443);
- if (array_key_exists($uri['scheme'], $defaultPorts) && $defaultPorts[$uri['scheme']] == $uri['port']) {
- $uriTemplate = str_replace(':%port', null, $uriTemplate);
- }
- foreach ($uri as $property => $value) {
- $uriTemplate = str_replace('%'.$property, $value, $uriTemplate);
- }
- if ($uriTemplate === '/*') {
- $uriTemplate = '*';
- }
- return $uriTemplate;
- }
- /**
- * Parses the given URI and breaks it down into pieces as an indexed array with elements
- * such as 'scheme', 'port', 'query'.
- *
- * @param string $uri URI to parse
- * @param mixed $base If true use default URI config, otherwise indexed array to set 'scheme', 'host', 'port', etc.
- * @return array Parsed URI
- * @access protected
- */
- function parseUri($uri = null, $base = array()) {
- $uriBase = array(
- 'scheme' => array('http', 'https'),
- 'host' => null,
- 'port' => array(80, 443),
- 'user' => null,
- 'pass' => null,
- 'path' => '/',
- 'query' => null,
- 'fragment' => null
- );
- if (is_string($uri)) {
- $uri = parse_url($uri);
- }
- if (!is_array($uri) || empty($uri)) {
- return false;
- }
- if ($base === true) {
- $base = $uriBase;
- }
- if (isset($base['port'], $base['scheme']) && is_array($base['port']) && is_array($base['scheme'])) {
- if (isset($uri['scheme']) && !isset($uri['port'])) {
- $base['port'] = $base['port'][array_search($uri['scheme'], $base['scheme'])];
- } elseif (isset($uri['port']) && !isset($uri['scheme'])) {
- $base['scheme'] = $base['scheme'][array_search($uri['port'], $base['port'])];
- }
- }
- if (is_array($base) && !empty($base)) {
- $uri = array_merge($base, $uri);
- }
- if (isset($uri['scheme']) && is_array($uri['scheme'])) {
- $uri['scheme'] = array_shift($uri['scheme']);
- }
- if (isset($uri['port']) && is_array($uri['port'])) {
- $uri['port'] = array_shift($uri['port']);
- }
- if (array_key_exists('query', $uri)) {
- $uri['query'] = $this->parseQuery($uri['query']);
- }
- if (!array_intersect_key($uriBase, $uri)) {
- return false;
- }
- return $uri;
- }
- /**
- * This function can be thought of as a reverse to PHP5's http_build_query(). It takes a given query string and turns it into an array and
- * supports nesting by using the php bracket syntax. So this menas you can parse queries like:
- *
- * - ?key[subKey]=value
- * - ?key[]=value1&key[]=value2
- *
- * A leading '?' mark in $query is optional and does not effect the outcome of this function. For the complete capabilities of this implementation
- * take a look at HttpSocketTest::testParseQuery()
- *
- * @param mixed $query A query string to parse into an array or an array to return directly "as is"
- * @return array The $query parsed into a possibly multi-level array. If an empty $query is given, an empty array is returned.
- * @access protected
- */
- function parseQuery($query) {
- if (is_array($query)) {
- return $query;
- }
- $parsedQuery = array();
- if (is_string($query) && !empty($query)) {
- $query = preg_replace('/^\?/', '', $query);
- $items = explode('&', $query);
- foreach ($items as $item) {
- if (strpos($item, '=') !== false) {
- list($key, $value) = explode('=', $item);
- } else {
- $key = $item;
- $value = null;
- }
- $key = urldecode($key);
- $value = urldecode($value);
- if (preg_match_all('/\[([^\[\]]*)\]/iUs', $key, $matches)) {
- $subKeys = $matches[1];
- $rootKey = substr($key, 0, strpos($key, '['));
- if (!empty($rootKey)) {
- array_unshift($subKeys, $rootKey);
- }
- $queryNode =& $parsedQuery;
- foreach ($subKeys as $subKey) {
- if (!is_array($queryNode)) {
- $queryNode = array();
- }
- if ($subKey === '') {
- $queryNode[] = array();
- end($queryNode);
- $subKey = key($queryNode);
- }
- $queryNode =& $queryNode[$subKey];
- }
- $queryNode = $value;
- } else {
- $parsedQuery[$key] = $value;
- }
- }
- }
- return $parsedQuery;
- }
- /**
- * Builds a request line according to HTTP/1.1 specs. Activate quirks mode to work outside specs.
- *
- * @param array $request Needs to contain a 'uri' key. Should also contain a 'method' key, otherwise defaults to GET.
- * @param string $versionToken The version token to use, defaults to HTTP/1.1
- * @return string Request line
- * @access protected
- */
- function buildRequestLine($request = array(), $versionToken = 'HTTP/1.1') {
- $asteriskMethods = array('OPTIONS');
- if (is_string($request)) {
- $isValid = preg_match("/(.+) (.+) (.+)\r\n/U", $request, $match);
- if (!$this->quirksMode && (!$isValid || ($match[2] == '*' && !in_array($match[3], $asteriskMethods)))) {
- trigger_error(__('HttpSocket::buildRequestLine - Passed an invalid request line string. Activate quirks mode to do this.', true), E_USER_WARNING);
- return false;
- }
- return $request;
- } elseif (!is_array($request)) {
- return false;
- } elseif (!array_key_exists('uri', $request)) {
- return false;
- }
- $request['uri'] = $this->parseUri($request['uri']);
- $request = array_merge(array('method' => 'GET'), $request);
- $request['uri'] = $this->buildUri($request['uri'], '/%path?%query');
- if (!$this->quirksMode && $request['uri'] === '*' && !in_array($request['method'], $asteriskMethods)) {
- trigger_error(sprintf(__('HttpSocket::buildRequestLine - The "*" asterisk character is only allowed for the following methods: %s. Activate quirks mode to work outside of HTTP/1.1 specs.', true), join(',', $asteriskMethods)), E_USER_WARNING);
- return false;
- }
- return $request['method'].' '.$request['uri'].' '.$versionToken.$this->lineBreak;
- }
- /**
- * Serializes an array for transport.
- *
- * @param array $data Data to serialize
- * @return string Serialized variable
- * @access protected
- */
- function httpSerialize($data = array()) {
- if (is_string($data)) {
- return $data;
- }
- if (empty($data) || !is_array($data)) {
- return false;
- }
- return substr(Router::queryString($data), 1);
- }
- /**
- * Builds the header.
- *
- * @param array $header Header to build
- * @return string Header built from array
- * @access protected
- */
- function buildHeader($header, $mode = 'standard') {
- if (is_string($header)) {
- return $header;
- } elseif (!is_array($header)) {
- return false;
- }
- $returnHeader = '';
- foreach ($header as $field => $contents) {
- if (is_array($contents) && $mode == 'standard') {
- $contents = join(',', $contents);
- }
- foreach ((array)$contents as $content) {
- $contents = preg_replace("/\r\n(?![\t ])/", "\r\n ", $content);
- $field = $this->escapeToken($field);
- $returnHeader .= $field.': '.$contents.$this->lineBreak;
- }
- }
- return $returnHeader;
- }
- /**
- * Parses an array based header.
- *
- * @param array $header Header as an indexed array (field => value)
- * @return array Parsed header
- * @access protected
- */
- function parseHeader($header) {
- if (is_array($header)) {
- foreach ($header as $field => $value) {
- unset($header[$field]);
- $field = strtolower($field);
- preg_match_all('/(?:^|(?<=-))[a-z]/U', $field, $offsets, PREG_OFFSET_CAPTURE);
- foreach ($offsets[0] as $offset) {
- $field = substr_replace($field, strtoupper($offset[0]), $offset[1], 1);
- }
- $header[$field] = $value;
- }
- return $header;
- } elseif (!is_string($header)) {
- return false;
- }
- preg_match_all("/(.+):(.+)(?:(?<![\t ])".$this->lineBreak."|\$)/Uis", $header, $matches, PREG_SET_ORDER);
- $header = array();
- foreach ($matches as $match) {
- list(, $field, $value) = $match;
- $value = trim($value);
- $value = preg_replace("/[\t ]\r\n/", "\r\n", $value);
- $field = $this->unescapeToken($field);
- $field = strtolower($field);
- preg_match_all('/(?:^|(?<=-))[a-z]/U', $field, $offsets, PREG_OFFSET_CAPTURE);
- foreach ($offsets[0] as $offset) {
- $field = substr_replace($field, strtoupper($offset[0]), $offset[1], 1);
- }
- if (!isset($header[$field])) {
- $header[$field] = $value;
- } else {
- $header[$field] = array_merge((array)$header[$field], (array)$value);
- }
- }
- return $header;
- }
- /**
- * undocumented function
- *
- * @param unknown $header
- * @return void
- * @access public
- * @todo Make this 100% RFC 2965 confirm
- */
- function parseCookies($header) {
- if (!isset($header['Set-Cookie'])) {
- return false;
- }
- $cookies = array();
- foreach ((array)$header['Set-Cookie'] as $cookie) {
- $parts = preg_split('/(?<![^;]");[ \t]*/', $cookie);
- list($name, $value) = explode('=', array_shift($parts));
- $cookies[$name] = compact('value');
- foreach ($parts as $part) {
- if (strpos($part, '=') !== false) {
- list($key, $value) = explode('=', $part);
- } else {
- $key = $part;
- $value = true;
- }
- $key = strtolower($key);
- if (!isset($cookies[$name][$key])) {
- $cookies[$name][$key] = $value;
- }
- }
- }
- return $cookies;
- }
- /**
- * undocumented function
- *
- * @param unknown $cookies
- * @return void
- * @access public
- * @todo Refactor token escape mechanism to be configurable
- */
- function buildCookies($cookies) {
- $header = array();
- foreach ($cookies as $name => $cookie) {
- $header[] = $name.'='.$this->escapeToken($cookie['value'], array(';'));
- }
- $header = $this->buildHeader(array('Cookie' => $header), 'pragmatic');
- return $header;
- }
- /**
- * undocumented function
- *
- * @return void
- * @access public
- */
- function saveCookies() {
- }
- /**
- * undocumented function
- *
- * @return void
- * @access public
- */
- function loadCookies() {
- }
- /**
- * Unescapes a given $token according to RFC 2616 (HTTP 1.1 specs)
- *
- * @param string $token Token to unescape
- * @return string Unescaped token
- * @access protected
- * @todo Test $chars parameter
- */
- function unescapeToken($token, $chars = null) {
- $regex = '/"(['.join('', $this->__tokenEscapeChars(true, $chars)).'])"/';
- $token = preg_replace($regex, '\\1', $token);
- return $token;
- }
- /**
- * Escapes a given $token according to RFC 2616 (HTTP 1.1 specs)
- *
- * @param string $token Token to escape
- * @return string Escaped token
- * @access protected
- * @todo Test $chars parameter
- */
- function escapeToken($token, $chars = null) {
- $regex = '/(['.join('', $this->__tokenEscapeChars(true, $chars)).'])/';
- $token = preg_replace($regex, '"\\1"', $token);
- return $token;
- }
- /**
- * Gets escape chars according to RFC 2616 (HTTP 1.1 specs).
- *
- * @param boolean $hex true to get them as HEX values, false otherwise
- * @return array Escape chars
- * @access private
- * @todo Test $chars parameter
- */
- function __tokenEscapeChars($hex = true, $chars = null) {
- if (!empty($chars)) {
- $escape = $chars;
- } else {
- $escape = array('"', "(", ")", "<", ">", "@", ",", ";", ":", "\\", "/", "[", "]", "?", "=", "{", "}", " ");
- for ($i = 0; $i <= 31; $i++) {
- $escape[] = chr($i);
- }
- $escape[] = chr(127);
- }
- if ($hex == false) {
- return $escape;
- }
- $regexChars = '';
- foreach ($escape as $key => $char) {
- $escape[$key] = '\\x'.str_pad(dechex(ord($char)), 2, '0', STR_PAD_LEFT);
- }
- return $escape;
- }
- /**
- * Resets the state of this HttpSocket instance to it's initial state (before Object::__construct got executed) or does
- * the same thing partially for the request and the response property only.
- *
- * @param boolean $full If set to false only HttpSocket::response and HttpSocket::request are reseted
- * @return boolean True on success
- * @access public
- */
- function reset($full = true) {
- static $initalState = array();
- if (empty($initalState)) {
- $initalState = get_class_vars(__CLASS__);
- }
- if ($full == false) {
- $this->request = $initalState['request'];
- $this->response = $initalState['response'];
- return true;
- }
- parent::reset($initalState);
- return true;
- }
- }
- ?>