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<?php |
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namespace dokuwiki\HTTP; |
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define('HTTP_NL',"\r\n"); |
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/** |
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* This class implements a basic HTTP client |
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* |
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* It supports POST and GET, Proxy usage, basic authentication, |
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* handles cookies and referers. It is based upon the httpclient |
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* function from the VideoDB project. |
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* |
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* @link http://www.splitbrain.org/go/videodb |
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* @author Andreas Goetz <[email protected]> |
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* @author Andreas Gohr <[email protected]> |
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* @author Tobias Sarnowski <[email protected]> |
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*/ |
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class HTTPClient { |
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//set these if you like |
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public $agent; // User agent |
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public $http; // HTTP version defaults to 1.0 |
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public $timeout; // read timeout (seconds) |
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public $cookies; |
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public $referer; |
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public $max_redirect; |
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public $max_bodysize; |
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public $max_bodysize_abort = true; // if set, abort if the response body is bigger than max_bodysize |
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public $header_regexp; // if set this RE must match against the headers, else abort |
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public $headers; |
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public $debug; |
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public $start = 0.0; // for timings |
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public $keep_alive = true; // keep alive rocks |
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// don't set these, read on error |
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public $error; |
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public $redirect_count; |
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// read these after a successful request |
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public $status; |
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public $resp_body; |
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public $resp_headers; |
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// set these to do basic authentication |
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public $user; |
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public $pass; |
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// set these if you need to use a proxy |
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public $proxy_host; |
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public $proxy_port; |
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public $proxy_user; |
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public $proxy_pass; |
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public $proxy_ssl; //boolean set to true if your proxy needs SSL |
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public $proxy_except; // regexp of URLs to exclude from proxy |
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// list of kept alive connections |
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protected static $connections = array(); |
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// what we use as boundary on multipart/form-data posts |
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protected $boundary = '---DokuWikiHTTPClient--4523452351'; |
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/** |
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* Constructor. |
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* |
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* @author Andreas Gohr <[email protected]> |
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*/ |
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public function __construct(){ |
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$this->agent = 'Mozilla/4.0 (compatible; DokuWiki HTTP Client; '.PHP_OS.')'; |
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$this->timeout = 15; |
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$this->cookies = array(); |
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$this->referer = ''; |
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$this->max_redirect = 3; |
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$this->redirect_count = 0; |
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$this->status = 0; |
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$this->headers = array(); |
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$this->http = '1.0'; |
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$this->debug = false; |
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$this->max_bodysize = 0; |
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$this->header_regexp= ''; |
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if(extension_loaded('zlib')) $this->headers['Accept-encoding'] = 'gzip'; |
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$this->headers['Accept'] = 'text/xml,application/xml,application/xhtml+xml,'. |
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'text/html,text/plain,image/png,image/jpeg,image/gif,*/*'; |
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$this->headers['Accept-Language'] = 'en-us'; |
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} |
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/** |
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* Simple function to do a GET request |
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* |
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* Returns the wanted page or false on an error; |
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* |
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* @param string $url The URL to fetch |
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* @param bool $sloppy304 Return body on 304 not modified |
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* @return false|string response body, false on error |
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* |
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* @author Andreas Gohr <[email protected]> |
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*/ |
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public function get($url,$sloppy304=false){ |
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if(!$this->sendRequest($url)) return false; |
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if($this->status == 304 && $sloppy304) return $this->resp_body; |
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if($this->status < 200 || $this->status > 206) return false; |
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return $this->resp_body; |
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} |
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/** |
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* Simple function to do a GET request with given parameters |
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* |
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* Returns the wanted page or false on an error. |
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* |
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* This is a convenience wrapper around get(). The given parameters |
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* will be correctly encoded and added to the given base URL. |
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* |
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* @param string $url The URL to fetch |
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* @param array $data Associative array of parameters |
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* @param bool $sloppy304 Return body on 304 not modified |
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* @return false|string response body, false on error |
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* |
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* @author Andreas Gohr <[email protected]> |
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*/ |
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public function dget($url,$data,$sloppy304=false){ |
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if(strpos($url,'?')){ |
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$url .= '&'; |
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}else{ |
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$url .= '?'; |
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} |
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$url .= $this->postEncode($data); |
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return $this->get($url,$sloppy304); |
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} |
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/** |
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* Simple function to do a POST request |
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* |
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* Returns the resulting page or false on an error; |
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* |
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* @param string $url The URL to fetch |
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* @param array $data Associative array of parameters |
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* @return false|string response body, false on error |
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* @author Andreas Gohr <[email protected]> |
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*/ |
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public function post($url,$data){ |
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if(!$this->sendRequest($url,$data,'POST')) return false; |
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if($this->status < 200 || $this->status > 206) return false; |
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return $this->resp_body; |
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} |
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/** |
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* Send an HTTP request |
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* |
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* This method handles the whole HTTP communication. It respects set proxy settings, |
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* builds the request headers, follows redirects and parses the response. |
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* |
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* Post data should be passed as associative array. When passed as string it will be |
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* sent as is. You will need to setup your own Content-Type header then. |
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* |
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* @param string $url - the complete URL |
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* @param mixed $data - the post data either as array or raw data |
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* @param string $method - HTTP Method usually GET or POST. |
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* @return bool - true on success |
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* |
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* @author Andreas Goetz <[email protected]> |
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* @author Andreas Gohr <[email protected]> |
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*/ |
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public function sendRequest($url,$data='',$method='GET'){ |
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$this->start = $this->time(); |
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$this->error = ''; |
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$this->status = 0; |
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$this->status = 0; |
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$this->resp_body = ''; |
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$this->resp_headers = array(); |
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// don't accept gzip if truncated bodies might occur |
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if($this->max_bodysize && |
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!$this->max_bodysize_abort && |
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$this->headers['Accept-encoding'] == 'gzip'){ |
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unset($this->headers['Accept-encoding']); |
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} |
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// parse URL into bits |
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$uri = parse_url($url); |
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$server = $uri['host']; |
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$path = $uri['path']; |
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if(empty($path)) $path = '/'; |
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if(!empty($uri['query'])) $path .= '?'.$uri['query']; |
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if(!empty($uri['port'])) $port = $uri['port']; |
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if(isset($uri['user'])) $this->user = $uri['user']; |
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if(isset($uri['pass'])) $this->pass = $uri['pass']; |
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// proxy setup |
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if($this->proxy_host && (!$this->proxy_except || !preg_match('/'.$this->proxy_except.'/i',$url)) ){ |
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$request_url = $url; |
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$server = $this->proxy_host; |
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$port = $this->proxy_port; |
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if (empty($port)) $port = 8080; |
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$use_tls = $this->proxy_ssl; |
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}else{ |
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$request_url = $path; |
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if (!isset($port)) $port = ($uri['scheme'] == 'https') ? 443 : 80; |
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$use_tls = ($uri['scheme'] == 'https'); |
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} |
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// add SSL stream prefix if needed - needs SSL support in PHP |
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if($use_tls) { |
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if(!in_array('ssl', stream_get_transports())) { |
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$this->status = -200; |
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$this->error = 'This PHP version does not support SSL - cannot connect to server'; |
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} |
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$server = 'ssl://'.$server; |
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} |
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// prepare headers |
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$headers = $this->headers; |
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$headers['Host'] = $uri['host']; |
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if(!empty($uri['port'])) $headers['Host'].= ':'.$uri['port']; |
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$headers['User-Agent'] = $this->agent; |
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$headers['Referer'] = $this->referer; |
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if($method == 'POST'){ |
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if(is_array($data)){ |
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if (empty($headers['Content-Type'])) { |
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$headers['Content-Type'] = null; |
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} |
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switch ($headers['Content-Type']) { |
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case 'multipart/form-data': |
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$headers['Content-Type'] = 'multipart/form-data; boundary=' . $this->boundary; |
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$data = $this->postMultipartEncode($data); |
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break; |
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default: |
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$headers['Content-Type'] = 'application/x-www-form-urlencoded'; |
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$data = $this->postEncode($data); |
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} |
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} |
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}elseif($method == 'GET'){ |
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$data = ''; //no data allowed on GET requests |
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} |
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$contentlength = strlen($data); |
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if($contentlength) { |
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$headers['Content-Length'] = $contentlength; |
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} |
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if($this->user) { |
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$headers['Authorization'] = 'Basic '.base64_encode($this->user.':'.$this->pass); |
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} |
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if($this->proxy_user) { |
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$headers['Proxy-Authorization'] = 'Basic '.base64_encode($this->proxy_user.':'.$this->proxy_pass); |
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} |
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// already connected? |
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$connectionId = $this->uniqueConnectionId($server,$port); |
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$this->debug('connection pool', self::$connections); |
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$socket = null; |
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if (isset(self::$connections[$connectionId])) { |
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$this->debug('reusing connection', $connectionId); |
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$socket = self::$connections[$connectionId]; |
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} |
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if (is_null($socket) || feof($socket)) { |
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$this->debug('opening connection', $connectionId); |
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// open socket |
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$socket = @fsockopen($server,$port,$errno, $errstr, $this->timeout); |
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if (!$socket){ |
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$this->status = -100; |
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$this->error = "Could not connect to $server:$port\n$errstr ($errno)"; |
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return false; |
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} |
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267
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// try establish a CONNECT tunnel for SSL |
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try { |
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if($this->ssltunnel($socket, $request_url)){ |
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// no keep alive for tunnels |
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$this->keep_alive = false; |
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// tunnel is authed already |
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if(isset($headers['Proxy-Authentication'])) unset($headers['Proxy-Authentication']); |
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} |
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} catch (HTTPClientException $e) { |
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$this->status = $e->getCode(); |
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$this->error = $e->getMessage(); |
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fclose($socket); |
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return false; |
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} |
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281
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282
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// keep alive? |
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283
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if ($this->keep_alive) { |
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self::$connections[$connectionId] = $socket; |
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285
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} else { |
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286
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unset(self::$connections[$connectionId]); |
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} |
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288
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} |
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289
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290
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if ($this->keep_alive && !$this->proxy_host) { |
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// RFC 2068, section 19.7.1: A client MUST NOT send the Keep-Alive |
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// connection token to a proxy server. We still do keep the connection the |
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// proxy alive (well except for CONNECT tunnels) |
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$headers['Connection'] = 'Keep-Alive'; |
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} else { |
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$headers['Connection'] = 'Close'; |
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297
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} |
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298
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299
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try { |
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300
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//set non-blocking |
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stream_set_blocking($socket, 0); |
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303
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// build request |
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304
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$request = "$method $request_url HTTP/".$this->http.HTTP_NL; |
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$request .= $this->buildHeaders($headers); |
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306
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$request .= $this->getCookies(); |
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307
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$request .= HTTP_NL; |
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308
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$request .= $data; |
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309
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310
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$this->debug('request',$request); |
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$this->sendData($socket, $request, 'request'); |
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312
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313
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// read headers from socket |
|
314
|
|
|
$r_headers = ''; |
|
315
|
|
|
do{ |
|
316
|
|
|
$r_line = $this->readLine($socket, 'headers'); |
|
317
|
|
|
$r_headers .= $r_line; |
|
318
|
|
|
}while($r_line != "\r\n" && $r_line != "\n"); |
|
319
|
|
|
|
|
320
|
|
|
$this->debug('response headers',$r_headers); |
|
321
|
|
|
|
|
322
|
|
|
// check if expected body size exceeds allowance |
|
323
|
|
|
if($this->max_bodysize && preg_match('/\r?\nContent-Length:\s*(\d+)\r?\n/i',$r_headers,$match)){ |
|
324
|
|
|
if($match[1] > $this->max_bodysize){ |
|
325
|
|
|
if ($this->max_bodysize_abort) |
|
326
|
|
|
throw new HTTPClientException('Reported content length exceeds allowed response size'); |
|
327
|
|
|
else |
|
328
|
|
|
$this->error = 'Reported content length exceeds allowed response size'; |
|
329
|
|
|
} |
|
330
|
|
|
} |
|
331
|
|
|
|
|
332
|
|
|
// get Status |
|
333
|
|
|
if (!preg_match('/^HTTP\/(\d\.\d)\s*(\d+).*?\n/', $r_headers, $m)) |
|
334
|
|
|
throw new HTTPClientException('Server returned bad answer '.$r_headers); |
|
335
|
|
|
|
|
336
|
|
|
$this->status = $m[2]; |
|
337
|
|
|
|
|
338
|
|
|
// handle headers and cookies |
|
339
|
|
|
$this->resp_headers = $this->parseHeaders($r_headers); |
|
340
|
|
|
if(isset($this->resp_headers['set-cookie'])){ |
|
341
|
|
|
foreach ((array) $this->resp_headers['set-cookie'] as $cookie){ |
|
342
|
|
|
list($cookie) = explode(';',$cookie,2); |
|
343
|
|
|
list($key,$val) = explode('=',$cookie,2); |
|
344
|
|
|
$key = trim($key); |
|
345
|
|
|
if($val == 'deleted'){ |
|
346
|
|
|
if(isset($this->cookies[$key])){ |
|
347
|
|
|
unset($this->cookies[$key]); |
|
348
|
|
|
} |
|
349
|
|
|
}elseif($key){ |
|
350
|
|
|
$this->cookies[$key] = $val; |
|
351
|
|
|
} |
|
352
|
|
|
} |
|
353
|
|
|
} |
|
354
|
|
|
|
|
355
|
|
|
$this->debug('Object headers',$this->resp_headers); |
|
356
|
|
|
|
|
357
|
|
|
// check server status code to follow redirect |
|
358
|
|
|
if($this->status == 301 || $this->status == 302 ){ |
|
359
|
|
|
if (empty($this->resp_headers['location'])){ |
|
360
|
|
|
throw new HTTPClientException('Redirect but no Location Header found'); |
|
361
|
|
|
}elseif($this->redirect_count == $this->max_redirect){ |
|
362
|
|
|
throw new HTTPClientException('Maximum number of redirects exceeded'); |
|
363
|
|
|
}else{ |
|
364
|
|
|
// close the connection because we don't handle content retrieval here |
|
365
|
|
|
// that's the easiest way to clean up the connection |
|
366
|
|
|
fclose($socket); |
|
367
|
|
|
unset(self::$connections[$connectionId]); |
|
368
|
|
|
|
|
369
|
|
|
$this->redirect_count++; |
|
370
|
|
|
$this->referer = $url; |
|
371
|
|
|
// handle non-RFC-compliant relative redirects |
|
372
|
|
|
if (!preg_match('/^http/i', $this->resp_headers['location'])){ |
|
373
|
|
|
if($this->resp_headers['location'][0] != '/'){ |
|
374
|
|
|
$this->resp_headers['location'] = $uri['scheme'].'://'.$uri['host'].':'.$uri['port']. |
|
375
|
|
|
dirname($uri['path']).'/'.$this->resp_headers['location']; |
|
376
|
|
|
}else{ |
|
377
|
|
|
$this->resp_headers['location'] = $uri['scheme'].'://'.$uri['host'].':'.$uri['port']. |
|
378
|
|
|
$this->resp_headers['location']; |
|
379
|
|
|
} |
|
380
|
|
|
} |
|
381
|
|
|
// perform redirected request, always via GET (required by RFC) |
|
382
|
|
|
return $this->sendRequest($this->resp_headers['location'],array(),'GET'); |
|
383
|
|
|
} |
|
384
|
|
|
} |
|
385
|
|
|
|
|
386
|
|
|
// check if headers are as expected |
|
387
|
|
|
if($this->header_regexp && !preg_match($this->header_regexp,$r_headers)) |
|
388
|
|
|
throw new HTTPClientException('The received headers did not match the given regexp'); |
|
389
|
|
|
|
|
390
|
|
|
//read body (with chunked encoding if needed) |
|
391
|
|
|
$r_body = ''; |
|
392
|
|
|
if( |
|
393
|
|
|
( |
|
394
|
|
|
isset($this->resp_headers['transfer-encoding']) && |
|
395
|
|
|
$this->resp_headers['transfer-encoding'] == 'chunked' |
|
396
|
|
|
) || ( |
|
397
|
|
|
isset($this->resp_headers['transfer-coding']) && |
|
398
|
|
|
$this->resp_headers['transfer-coding'] == 'chunked' |
|
399
|
|
|
) |
|
400
|
|
|
) { |
|
401
|
|
|
$abort = false; |
|
402
|
|
|
do { |
|
403
|
|
|
$chunk_size = ''; |
|
404
|
|
|
while (preg_match('/^[a-zA-Z0-9]?$/',$byte=$this->readData($socket,1,'chunk'))){ |
|
405
|
|
|
// read chunksize until \r |
|
406
|
|
|
$chunk_size .= $byte; |
|
407
|
|
|
if (strlen($chunk_size) > 128) // set an abritrary limit on the size of chunks |
|
408
|
|
|
throw new HTTPClientException('Allowed response size exceeded'); |
|
409
|
|
|
} |
|
410
|
|
|
$this->readLine($socket, 'chunk'); // readtrailing \n |
|
411
|
|
|
$chunk_size = hexdec($chunk_size); |
|
412
|
|
|
|
|
413
|
|
|
if($this->max_bodysize && $chunk_size+strlen($r_body) > $this->max_bodysize){ |
|
414
|
|
|
if ($this->max_bodysize_abort) |
|
415
|
|
|
throw new HTTPClientException('Allowed response size exceeded'); |
|
416
|
|
|
$this->error = 'Allowed response size exceeded'; |
|
417
|
|
|
$chunk_size = $this->max_bodysize - strlen($r_body); |
|
418
|
|
|
$abort = true; |
|
419
|
|
|
} |
|
420
|
|
|
|
|
421
|
|
|
if ($chunk_size > 0) { |
|
422
|
|
|
$r_body .= $this->readData($socket, $chunk_size, 'chunk'); |
|
423
|
|
|
$this->readData($socket, 2, 'chunk'); // read trailing \r\n |
|
424
|
|
|
} |
|
425
|
|
|
} while ($chunk_size && !$abort); |
|
426
|
|
|
}elseif(isset($this->resp_headers['content-length']) && !isset($this->resp_headers['transfer-encoding'])){ |
|
427
|
|
|
/* RFC 2616 |
|
428
|
|
|
* If a message is received with both a Transfer-Encoding header field and a Content-Length |
|
429
|
|
|
* header field, the latter MUST be ignored. |
|
430
|
|
|
*/ |
|
431
|
|
|
|
|
432
|
|
|
// read up to the content-length or max_bodysize |
|
433
|
|
|
// for keep alive we need to read the whole message to clean up the socket for the next read |
|
434
|
|
|
if( |
|
435
|
|
|
!$this->keep_alive && |
|
436
|
|
|
$this->max_bodysize && |
|
437
|
|
|
$this->max_bodysize < $this->resp_headers['content-length'] |
|
438
|
|
|
) { |
|
439
|
|
|
$length = $this->max_bodysize + 1; |
|
440
|
|
|
}else{ |
|
441
|
|
|
$length = $this->resp_headers['content-length']; |
|
442
|
|
|
} |
|
443
|
|
|
|
|
444
|
|
|
$r_body = $this->readData($socket, $length, 'response (content-length limited)', true); |
|
445
|
|
|
}elseif( !isset($this->resp_headers['transfer-encoding']) && $this->max_bodysize && !$this->keep_alive){ |
|
446
|
|
|
$r_body = $this->readData($socket, $this->max_bodysize+1, 'response (content-length limited)', true); |
|
447
|
|
|
} elseif ((int)$this->status === 204) { |
|
448
|
|
|
// request has no content |
|
449
|
|
|
} else{ |
|
450
|
|
|
// read entire socket |
|
451
|
|
|
while (!feof($socket)) { |
|
452
|
|
|
$r_body .= $this->readData($socket, 4096, 'response (unlimited)', true); |
|
453
|
|
|
} |
|
454
|
|
|
} |
|
455
|
|
|
|
|
456
|
|
|
// recheck body size, we might have read max_bodysize+1 or even the whole body, so we abort late here |
|
457
|
|
|
if($this->max_bodysize){ |
|
458
|
|
|
if(strlen($r_body) > $this->max_bodysize){ |
|
459
|
|
|
if ($this->max_bodysize_abort) { |
|
460
|
|
|
throw new HTTPClientException('Allowed response size exceeded'); |
|
461
|
|
|
} else { |
|
462
|
|
|
$this->error = 'Allowed response size exceeded'; |
|
463
|
|
|
} |
|
464
|
|
|
} |
|
465
|
|
|
} |
|
466
|
|
|
|
|
467
|
|
|
} catch (HTTPClientException $err) { |
|
468
|
|
|
$this->error = $err->getMessage(); |
|
469
|
|
|
if ($err->getCode()) |
|
470
|
|
|
$this->status = $err->getCode(); |
|
471
|
|
|
unset(self::$connections[$connectionId]); |
|
472
|
|
|
fclose($socket); |
|
473
|
|
|
return false; |
|
474
|
|
|
} |
|
475
|
|
|
|
|
476
|
|
|
if (!$this->keep_alive || |
|
477
|
|
|
(isset($this->resp_headers['connection']) && $this->resp_headers['connection'] == 'Close')) { |
|
478
|
|
|
// close socket |
|
479
|
|
|
fclose($socket); |
|
480
|
|
|
unset(self::$connections[$connectionId]); |
|
481
|
|
|
} |
|
482
|
|
|
|
|
483
|
|
|
// decode gzip if needed |
|
484
|
|
|
if(isset($this->resp_headers['content-encoding']) && |
|
485
|
|
|
$this->resp_headers['content-encoding'] == 'gzip' && |
|
486
|
|
|
strlen($r_body) > 10 && substr($r_body,0,3)=="\x1f\x8b\x08"){ |
|
487
|
|
|
$this->resp_body = @gzinflate(substr($r_body, 10)); |
|
488
|
|
|
if($this->resp_body === false){ |
|
489
|
|
|
$this->error = 'Failed to decompress gzip encoded content'; |
|
490
|
|
|
$this->resp_body = $r_body; |
|
491
|
|
|
} |
|
492
|
|
|
}else{ |
|
493
|
|
|
$this->resp_body = $r_body; |
|
494
|
|
|
} |
|
495
|
|
|
|
|
496
|
|
|
$this->debug('response body',$this->resp_body); |
|
497
|
|
|
$this->redirect_count = 0; |
|
498
|
|
|
return true; |
|
499
|
|
|
} |
|
500
|
|
|
|
|
501
|
|
|
/** |
|
502
|
|
|
* Tries to establish a CONNECT tunnel via Proxy |
|
503
|
|
|
* |
|
504
|
|
|
* Protocol, Servername and Port will be stripped from the request URL when a successful CONNECT happened |
|
505
|
|
|
* |
|
506
|
|
|
* @param resource &$socket |
|
507
|
|
|
* @param string &$requesturl |
|
508
|
|
|
* @throws HTTPClientException when a tunnel is needed but could not be established |
|
509
|
|
|
* @return bool true if a tunnel was established |
|
510
|
|
|
*/ |
|
511
|
|
|
protected function ssltunnel(&$socket, &$requesturl){ |
|
512
|
|
|
if(!$this->proxy_host) return false; |
|
513
|
|
|
$requestinfo = parse_url($requesturl); |
|
514
|
|
|
if($requestinfo['scheme'] != 'https') return false; |
|
515
|
|
|
if(!$requestinfo['port']) $requestinfo['port'] = 443; |
|
516
|
|
|
|
|
517
|
|
|
// build request |
|
518
|
|
|
$request = "CONNECT {$requestinfo['host']}:{$requestinfo['port']} HTTP/1.0".HTTP_NL; |
|
519
|
|
|
$request .= "Host: {$requestinfo['host']}".HTTP_NL; |
|
520
|
|
|
if($this->proxy_user) { |
|
521
|
|
|
$request .= 'Proxy-Authorization: Basic '.base64_encode($this->proxy_user.':'.$this->proxy_pass).HTTP_NL; |
|
522
|
|
|
} |
|
523
|
|
|
$request .= HTTP_NL; |
|
524
|
|
|
|
|
525
|
|
|
$this->debug('SSL Tunnel CONNECT',$request); |
|
526
|
|
|
$this->sendData($socket, $request, 'SSL Tunnel CONNECT'); |
|
527
|
|
|
|
|
528
|
|
|
// read headers from socket |
|
529
|
|
|
$r_headers = ''; |
|
530
|
|
|
do{ |
|
531
|
|
|
$r_line = $this->readLine($socket, 'headers'); |
|
532
|
|
|
$r_headers .= $r_line; |
|
533
|
|
|
}while($r_line != "\r\n" && $r_line != "\n"); |
|
534
|
|
|
|
|
535
|
|
|
$this->debug('SSL Tunnel Response',$r_headers); |
|
536
|
|
|
if(preg_match('/^HTTP\/1\.[01] 200/i',$r_headers)){ |
|
537
|
|
|
// set correct peer name for verification (enabled since PHP 5.6) |
|
538
|
|
|
stream_context_set_option($socket, 'ssl', 'peer_name', $requestinfo['host']); |
|
539
|
|
|
|
|
540
|
|
|
// SSLv3 is broken, use only TLS connections. |
|
541
|
|
|
// @link https://bugs.php.net/69195 |
|
542
|
|
|
if (PHP_VERSION_ID >= 50600 && PHP_VERSION_ID <= 50606) { |
|
543
|
|
|
$cryptoMethod = STREAM_CRYPTO_METHOD_TLS_CLIENT; |
|
544
|
|
|
} else { |
|
545
|
|
|
// actually means neither SSLv2 nor SSLv3 |
|
546
|
|
|
$cryptoMethod = STREAM_CRYPTO_METHOD_SSLv23_CLIENT; |
|
547
|
|
|
} |
|
548
|
|
|
|
|
549
|
|
|
if (@stream_socket_enable_crypto($socket, true, $cryptoMethod)) { |
|
550
|
|
|
$requesturl = $requestinfo['path']. |
|
551
|
|
|
(!empty($requestinfo['query'])?'?'.$requestinfo['query']:''); |
|
552
|
|
|
return true; |
|
553
|
|
|
} |
|
554
|
|
|
|
|
555
|
|
|
throw new HTTPClientException( |
|
556
|
|
|
'Failed to set up crypto for secure connection to '.$requestinfo['host'], -151 |
|
557
|
|
|
); |
|
558
|
|
|
} |
|
559
|
|
|
|
|
560
|
|
|
throw new HTTPClientException('Failed to establish secure proxy connection', -150); |
|
561
|
|
|
} |
|
562
|
|
|
|
|
563
|
|
|
/** |
|
564
|
|
|
* Safely write data to a socket |
|
565
|
|
|
* |
|
566
|
|
|
* @param resource $socket An open socket handle |
|
567
|
|
|
* @param string $data The data to write |
|
568
|
|
|
* @param string $message Description of what is being read |
|
569
|
|
|
* @throws HTTPClientException |
|
570
|
|
|
* |
|
571
|
|
|
* @author Tom N Harris <[email protected]> |
|
572
|
|
|
*/ |
|
573
|
|
|
protected function sendData($socket, $data, $message) { |
|
574
|
|
|
// send request |
|
575
|
|
|
$towrite = strlen($data); |
|
576
|
|
|
$written = 0; |
|
577
|
|
|
while($written < $towrite){ |
|
578
|
|
|
// check timeout |
|
579
|
|
|
$time_used = $this->time() - $this->start; |
|
580
|
|
|
if($time_used > $this->timeout) |
|
581
|
|
|
throw new HTTPClientException(sprintf('Timeout while sending %s (%.3fs)',$message, $time_used), -100); |
|
582
|
|
|
if(feof($socket)) |
|
583
|
|
|
throw new HTTPClientException("Socket disconnected while writing $message"); |
|
584
|
|
|
|
|
585
|
|
|
// select parameters |
|
586
|
|
|
$sel_r = null; |
|
587
|
|
|
$sel_w = array($socket); |
|
588
|
|
|
$sel_e = null; |
|
589
|
|
|
// wait for stream ready or timeout (1sec) |
|
590
|
|
|
if(@stream_select($sel_r,$sel_w,$sel_e,1) === false){ |
|
591
|
|
|
usleep(1000); |
|
592
|
|
|
continue; |
|
593
|
|
|
} |
|
594
|
|
|
|
|
595
|
|
|
// write to stream |
|
596
|
|
|
$nbytes = fwrite($socket, substr($data,$written,4096)); |
|
597
|
|
|
if($nbytes === false) |
|
598
|
|
|
throw new HTTPClientException("Failed writing to socket while sending $message", -100); |
|
599
|
|
|
$written += $nbytes; |
|
600
|
|
|
} |
|
601
|
|
|
} |
|
602
|
|
|
|
|
603
|
|
|
/** |
|
604
|
|
|
* Safely read data from a socket |
|
605
|
|
|
* |
|
606
|
|
|
* Reads up to a given number of bytes or throws an exception if the |
|
607
|
|
|
* response times out or ends prematurely. |
|
608
|
|
|
* |
|
609
|
|
|
* @param resource $socket An open socket handle in non-blocking mode |
|
610
|
|
|
* @param int $nbytes Number of bytes to read |
|
611
|
|
|
* @param string $message Description of what is being read |
|
612
|
|
|
* @param bool $ignore_eof End-of-file is not an error if this is set |
|
613
|
|
|
* @throws HTTPClientException |
|
614
|
|
|
* @return string |
|
615
|
|
|
* |
|
616
|
|
|
* @author Tom N Harris <[email protected]> |
|
617
|
|
|
*/ |
|
618
|
|
|
protected function readData($socket, $nbytes, $message, $ignore_eof = false) { |
|
619
|
|
|
$r_data = ''; |
|
620
|
|
|
// Does not return immediately so timeout and eof can be checked |
|
621
|
|
|
if ($nbytes < 0) $nbytes = 0; |
|
622
|
|
|
$to_read = $nbytes; |
|
623
|
|
|
do { |
|
624
|
|
|
$time_used = $this->time() - $this->start; |
|
625
|
|
|
if ($time_used > $this->timeout) |
|
626
|
|
|
throw new HTTPClientException( |
|
627
|
|
|
sprintf('Timeout while reading %s after %d bytes (%.3fs)', $message, |
|
628
|
|
|
strlen($r_data), $time_used), -100); |
|
629
|
|
|
if(feof($socket)) { |
|
630
|
|
|
if(!$ignore_eof) |
|
631
|
|
|
throw new HTTPClientException("Premature End of File (socket) while reading $message"); |
|
632
|
|
|
break; |
|
633
|
|
|
} |
|
634
|
|
|
|
|
635
|
|
|
if ($to_read > 0) { |
|
636
|
|
|
// select parameters |
|
637
|
|
|
$sel_r = array($socket); |
|
638
|
|
|
$sel_w = null; |
|
639
|
|
|
$sel_e = null; |
|
640
|
|
|
// wait for stream ready or timeout (1sec) |
|
641
|
|
|
if(@stream_select($sel_r,$sel_w,$sel_e,1) === false){ |
|
642
|
|
|
usleep(1000); |
|
643
|
|
|
continue; |
|
644
|
|
|
} |
|
645
|
|
|
|
|
646
|
|
|
$bytes = fread($socket, $to_read); |
|
647
|
|
|
if($bytes === false) |
|
648
|
|
|
throw new HTTPClientException("Failed reading from socket while reading $message", -100); |
|
649
|
|
|
$r_data .= $bytes; |
|
650
|
|
|
$to_read -= strlen($bytes); |
|
651
|
|
|
} |
|
652
|
|
|
} while ($to_read > 0 && strlen($r_data) < $nbytes); |
|
653
|
|
|
return $r_data; |
|
654
|
|
|
} |
|
655
|
|
|
|
|
656
|
|
|
/** |
|
657
|
|
|
* Safely read a \n-terminated line from a socket |
|
658
|
|
|
* |
|
659
|
|
|
* Always returns a complete line, including the terminating \n. |
|
660
|
|
|
* |
|
661
|
|
|
* @param resource $socket An open socket handle in non-blocking mode |
|
662
|
|
|
* @param string $message Description of what is being read |
|
663
|
|
|
* @throws HTTPClientException |
|
664
|
|
|
* @return string |
|
665
|
|
|
* |
|
666
|
|
|
* @author Tom N Harris <[email protected]> |
|
667
|
|
|
*/ |
|
668
|
|
|
protected function readLine($socket, $message) { |
|
669
|
|
|
$r_data = ''; |
|
670
|
|
|
do { |
|
671
|
|
|
$time_used = $this->time() - $this->start; |
|
672
|
|
|
if ($time_used > $this->timeout) |
|
673
|
|
|
throw new HTTPClientException( |
|
674
|
|
|
sprintf('Timeout while reading %s (%.3fs) >%s<', $message, $time_used, $r_data), |
|
675
|
|
|
-100); |
|
676
|
|
|
if(feof($socket)) |
|
677
|
|
|
throw new HTTPClientException("Premature End of File (socket) while reading $message"); |
|
678
|
|
|
|
|
679
|
|
|
// select parameters |
|
680
|
|
|
$sel_r = array($socket); |
|
681
|
|
|
$sel_w = null; |
|
682
|
|
|
$sel_e = null; |
|
683
|
|
|
// wait for stream ready or timeout (1sec) |
|
684
|
|
|
if(@stream_select($sel_r,$sel_w,$sel_e,1) === false){ |
|
685
|
|
|
usleep(1000); |
|
686
|
|
|
continue; |
|
687
|
|
|
} |
|
688
|
|
|
|
|
689
|
|
|
$r_data = fgets($socket, 1024); |
|
690
|
|
|
} while (!preg_match('/\n$/',$r_data)); |
|
691
|
|
|
return $r_data; |
|
692
|
|
|
} |
|
693
|
|
|
|
|
694
|
|
|
/** |
|
695
|
|
|
* print debug info |
|
696
|
|
|
* |
|
697
|
|
|
* Uses _debug_text or _debug_html depending on the SAPI name |
|
698
|
|
|
* |
|
699
|
|
|
* @author Andreas Gohr <[email protected]> |
|
700
|
|
|
* |
|
701
|
|
|
* @param string $info |
|
702
|
|
|
* @param mixed $var |
|
703
|
|
|
*/ |
|
704
|
|
|
protected function debug($info,$var=null){ |
|
705
|
|
|
if(!$this->debug) return; |
|
706
|
|
|
if(php_sapi_name() == 'cli'){ |
|
707
|
|
|
$this->debugText($info, $var); |
|
708
|
|
|
}else{ |
|
709
|
|
|
$this->debugHtml($info, $var); |
|
710
|
|
|
} |
|
711
|
|
|
} |
|
712
|
|
|
|
|
713
|
|
|
/** |
|
714
|
|
|
* print debug info as HTML |
|
715
|
|
|
* |
|
716
|
|
|
* @param string $info |
|
717
|
|
|
* @param mixed $var |
|
718
|
|
|
*/ |
|
719
|
|
|
protected function debugHtml($info, $var=null){ |
|
720
|
|
|
print '<b>'.$info.'</b> '.($this->time() - $this->start).'s<br />'; |
|
721
|
|
|
if(!is_null($var)){ |
|
722
|
|
|
ob_start(); |
|
723
|
|
|
print_r($var); |
|
724
|
|
|
$content = htmlspecialchars(ob_get_contents()); |
|
725
|
|
|
ob_end_clean(); |
|
726
|
|
|
print '<pre>'.$content.'</pre>'; |
|
727
|
|
|
} |
|
728
|
|
|
} |
|
729
|
|
|
|
|
730
|
|
|
/** |
|
731
|
|
|
* prints debug info as plain text |
|
732
|
|
|
* |
|
733
|
|
|
* @param string $info |
|
734
|
|
|
* @param mixed $var |
|
735
|
|
|
*/ |
|
736
|
|
|
protected function debugText($info, $var=null){ |
|
737
|
|
|
print '*'.$info.'* '.($this->time() - $this->start)."s\n"; |
|
738
|
|
|
if(!is_null($var)) print_r($var); |
|
739
|
|
|
print "\n-----------------------------------------------\n"; |
|
740
|
|
|
} |
|
741
|
|
|
|
|
742
|
|
|
/** |
|
743
|
|
|
* Return current timestamp in microsecond resolution |
|
744
|
|
|
* |
|
745
|
|
|
* @return float |
|
746
|
|
|
*/ |
|
747
|
|
|
protected static function time(){ |
|
748
|
|
|
list($usec, $sec) = explode(" ", microtime()); |
|
749
|
|
|
return ((float)$usec + (float)$sec); |
|
750
|
|
|
} |
|
751
|
|
|
|
|
752
|
|
|
/** |
|
753
|
|
|
* convert given header string to Header array |
|
754
|
|
|
* |
|
755
|
|
|
* All Keys are lowercased. |
|
756
|
|
|
* |
|
757
|
|
|
* @author Andreas Gohr <[email protected]> |
|
758
|
|
|
* |
|
759
|
|
|
* @param string $string |
|
760
|
|
|
* @return array |
|
761
|
|
|
*/ |
|
762
|
|
|
protected function parseHeaders($string){ |
|
763
|
|
|
$headers = array(); |
|
764
|
|
|
$lines = explode("\n",$string); |
|
765
|
|
|
array_shift($lines); //skip first line (status) |
|
766
|
|
|
foreach($lines as $line){ |
|
767
|
|
|
@list($key, $val) = explode(':',$line,2); |
|
768
|
|
|
$key = trim($key); |
|
769
|
|
|
$val = trim($val); |
|
770
|
|
|
$key = strtolower($key); |
|
771
|
|
|
if(!$key) continue; |
|
772
|
|
|
if(isset($headers[$key])){ |
|
773
|
|
|
if(is_array($headers[$key])){ |
|
774
|
|
|
$headers[$key][] = $val; |
|
775
|
|
|
}else{ |
|
776
|
|
|
$headers[$key] = array($headers[$key],$val); |
|
777
|
|
|
} |
|
778
|
|
|
}else{ |
|
779
|
|
|
$headers[$key] = $val; |
|
780
|
|
|
} |
|
781
|
|
|
} |
|
782
|
|
|
return $headers; |
|
783
|
|
|
} |
|
784
|
|
|
|
|
785
|
|
|
/** |
|
786
|
|
|
* convert given header array to header string |
|
787
|
|
|
* |
|
788
|
|
|
* @author Andreas Gohr <[email protected]> |
|
789
|
|
|
* |
|
790
|
|
|
* @param array $headers |
|
791
|
|
|
* @return string |
|
792
|
|
|
*/ |
|
793
|
|
|
protected function buildHeaders($headers){ |
|
794
|
|
|
$string = ''; |
|
795
|
|
|
foreach($headers as $key => $value){ |
|
796
|
|
|
if($value === '') continue; |
|
797
|
|
|
$string .= $key.': '.$value.HTTP_NL; |
|
798
|
|
|
} |
|
799
|
|
|
return $string; |
|
800
|
|
|
} |
|
801
|
|
|
|
|
802
|
|
|
/** |
|
803
|
|
|
* get cookies as http header string |
|
804
|
|
|
* |
|
805
|
|
|
* @author Andreas Goetz <[email protected]> |
|
806
|
|
|
* |
|
807
|
|
|
* @return string |
|
808
|
|
|
*/ |
|
809
|
|
|
protected function getCookies(){ |
|
810
|
|
|
$headers = ''; |
|
811
|
|
|
foreach ($this->cookies as $key => $val){ |
|
812
|
|
|
$headers .= "$key=$val; "; |
|
813
|
|
|
} |
|
814
|
|
|
$headers = substr($headers, 0, -2); |
|
815
|
|
|
if ($headers) $headers = "Cookie: $headers".HTTP_NL; |
|
816
|
|
|
return $headers; |
|
817
|
|
|
} |
|
818
|
|
|
|
|
819
|
|
|
/** |
|
820
|
|
|
* Encode data for posting |
|
821
|
|
|
* |
|
822
|
|
|
* @author Andreas Gohr <[email protected]> |
|
823
|
|
|
* |
|
824
|
|
|
* @param array $data |
|
825
|
|
|
* @return string |
|
826
|
|
|
*/ |
|
827
|
|
|
protected function postEncode($data){ |
|
828
|
|
|
return http_build_query($data,'','&'); |
|
829
|
|
|
} |
|
830
|
|
|
|
|
831
|
|
|
/** |
|
832
|
|
|
* Encode data for posting using multipart encoding |
|
833
|
|
|
* |
|
834
|
|
|
* @fixme use of urlencode might be wrong here |
|
835
|
|
|
* @author Andreas Gohr <[email protected]> |
|
836
|
|
|
* |
|
837
|
|
|
* @param array $data |
|
838
|
|
|
* @return string |
|
839
|
|
|
*/ |
|
840
|
|
|
protected function postMultipartEncode($data){ |
|
841
|
|
|
$boundary = '--'.$this->boundary; |
|
842
|
|
|
$out = ''; |
|
843
|
|
|
foreach($data as $key => $val){ |
|
844
|
|
|
$out .= $boundary.HTTP_NL; |
|
845
|
|
|
if(!is_array($val)){ |
|
846
|
|
|
$out .= 'Content-Disposition: form-data; name="'.urlencode($key).'"'.HTTP_NL; |
|
847
|
|
|
$out .= HTTP_NL; // end of headers |
|
848
|
|
|
$out .= $val; |
|
849
|
|
|
$out .= HTTP_NL; |
|
850
|
|
|
}else{ |
|
851
|
|
|
$out .= 'Content-Disposition: form-data; name="'.urlencode($key).'"'; |
|
852
|
|
|
if($val['filename']) $out .= '; filename="'.urlencode($val['filename']).'"'; |
|
853
|
|
|
$out .= HTTP_NL; |
|
854
|
|
|
if($val['mimetype']) $out .= 'Content-Type: '.$val['mimetype'].HTTP_NL; |
|
855
|
|
|
$out .= HTTP_NL; // end of headers |
|
856
|
|
|
$out .= $val['body']; |
|
857
|
|
|
$out .= HTTP_NL; |
|
858
|
|
|
} |
|
859
|
|
|
} |
|
860
|
|
|
$out .= "$boundary--".HTTP_NL; |
|
861
|
|
|
return $out; |
|
862
|
|
|
} |
|
863
|
|
|
|
|
864
|
|
|
/** |
|
865
|
|
|
* Generates a unique identifier for a connection. |
|
866
|
|
|
* |
|
867
|
|
|
* @param string $server |
|
868
|
|
|
* @param string $port |
|
869
|
|
|
* @return string unique identifier |
|
870
|
|
|
*/ |
|
871
|
|
|
protected function uniqueConnectionId($server, $port) { |
|
872
|
|
|
return "$server:$port"; |
|
873
|
|
|
} |
|
874
|
|
|
} |
|
875
|
|
|
|
splitbrain /
dokuwiki
