/tags/Doduo/WebKitSite/blog/wp-includes/js/tinymce/plugins/spellchecker/classes/HttpClient.class.php
PHP | 339 lines | 304 code | 3 blank | 32 comment | 49 complexity | a76d00eacf8f07be342b41df83f0f062 MD5 | raw file
- <?php
- /* Version 0.9, 6th April 2003 - Simon Willison ( http://simon.incutio.com/ )
- Manual: http://scripts.incutio.com/httpclient/
- */
- class HttpClient {
- // Request vars
- var $host;
- var $port;
- var $path;
- var $method;
- var $postdata = '';
- var $cookies = array();
- var $referer;
- var $accept = 'text/xml,application/xml,application/xhtml+xml,text/html,text/plain,image/png,image/jpeg,image/gif,*/*';
- var $accept_encoding = 'gzip';
- var $accept_language = 'en-us';
- var $user_agent = 'Incutio HttpClient v0.9';
- // Options
- var $timeout = 20;
- var $use_gzip = true;
- var $persist_cookies = true; // If true, received cookies are placed in the $this->cookies array ready for the next request
- // Note: This currently ignores the cookie path (and time) completely. Time is not important,
- // but path could possibly lead to security problems.
- var $persist_referers = true; // For each request, sends path of last request as referer
- var $debug = false;
- var $handle_redirects = true; // Auaomtically redirect if Location or URI header is found
- var $max_redirects = 5;
- var $headers_only = false; // If true, stops receiving once headers have been read.
- // Basic authorization variables
- var $username;
- var $password;
- // Response vars
- var $status;
- var $headers = array();
- var $content = '';
- var $errormsg;
- // Tracker variables
- var $redirect_count = 0;
- var $cookie_host = '';
- function HttpClient($host, $port=80) {
- $this->host = $host;
- $this->port = $port;
- }
- function get($path, $data = false) {
- $this->path = $path;
- $this->method = 'GET';
- if ($data) {
- $this->path .= '?'.$this->buildQueryString($data);
- }
- return $this->doRequest();
- }
- function post($path, $data) {
- $this->path = $path;
- $this->method = 'POST';
- $this->postdata = $this->buildQueryString($data);
- return $this->doRequest();
- }
- function buildQueryString($data) {
- $querystring = '';
- if (is_array($data)) {
- // Change data in to postable data
- foreach ($data as $key => $val) {
- if (is_array($val)) {
- foreach ($val as $val2) {
- $querystring .= urlencode($key).'='.urlencode($val2).'&';
- }
- } else {
- $querystring .= urlencode($key).'='.urlencode($val).'&';
- }
- }
- $querystring = substr($querystring, 0, -1); // Eliminate unnecessary &
- } else {
- $querystring = $data;
- }
- return $querystring;
- }
- function doRequest() {
- // Performs the actual HTTP request, returning true or false depending on outcome
- if (!$fp = @fsockopen($this->host, $this->port, $errno, $errstr, $this->timeout)) {
- // Set error message
- switch($errno) {
- case -3:
- $this->errormsg = 'Socket creation failed (-3)';
- case -4:
- $this->errormsg = 'DNS lookup failure (-4)';
- case -5:
- $this->errormsg = 'Connection refused or timed out (-5)';
- default:
- $this->errormsg = 'Connection failed ('.$errno.')';
- $this->errormsg .= ' '.$errstr;
- $this->debug($this->errormsg);
- }
- return false;
- }
- socket_set_timeout($fp, $this->timeout);
- $request = $this->buildRequest();
- $this->debug('Request', $request);
- fwrite($fp, $request);
- // Reset all the variables that should not persist between requests
- $this->headers = array();
- $this->content = '';
- $this->errormsg = '';
- // Set a couple of flags
- $inHeaders = true;
- $atStart = true;
- // Now start reading back the response
- while (!feof($fp)) {
- $line = fgets($fp, 4096);
- if ($atStart) {
- // Deal with first line of returned data
- $atStart = false;
- if (!preg_match('/HTTP\/(\\d\\.\\d)\\s*(\\d+)\\s*(.*)/', $line, $m)) {
- $this->errormsg = "Status code line invalid: ".htmlentities($line);
- $this->debug($this->errormsg);
- return false;
- }
- $http_version = $m[1]; // not used
- $this->status = $m[2];
- $status_string = $m[3]; // not used
- $this->debug(trim($line));
- continue;
- }
- if ($inHeaders) {
- if (trim($line) == '') {
- $inHeaders = false;
- $this->debug('Received Headers', $this->headers);
- if ($this->headers_only) {
- break; // Skip the rest of the input
- }
- continue;
- }
- if (!preg_match('/([^:]+):\\s*(.*)/', $line, $m)) {
- // Skip to the next header
- continue;
- }
- $key = strtolower(trim($m[1]));
- $val = trim($m[2]);
- // Deal with the possibility of multiple headers of same name
- if (isset($this->headers[$key])) {
- if (is_array($this->headers[$key])) {
- $this->headers[$key][] = $val;
- } else {
- $this->headers[$key] = array($this->headers[$key], $val);
- }
- } else {
- $this->headers[$key] = $val;
- }
- continue;
- }
- // We're not in the headers, so append the line to the contents
- $this->content .= $line;
- }
- fclose($fp);
- // If data is compressed, uncompress it
- if (isset($this->headers['content-encoding']) && $this->headers['content-encoding'] == 'gzip') {
- $this->debug('Content is gzip encoded, unzipping it');
- $this->content = substr($this->content, 10); // See http://www.php.net/manual/en/function.gzencode.php
- $this->content = gzinflate($this->content);
- }
- // If $persist_cookies, deal with any cookies
- if ($this->persist_cookies && isset($this->headers['set-cookie']) && $this->host == $this->cookie_host) {
- $cookies = $this->headers['set-cookie'];
- if (!is_array($cookies)) {
- $cookies = array($cookies);
- }
- foreach ($cookies as $cookie) {
- if (preg_match('/([^=]+)=([^;]+);/', $cookie, $m)) {
- $this->cookies[$m[1]] = $m[2];
- }
- }
- // Record domain of cookies for security reasons
- $this->cookie_host = $this->host;
- }
- // If $persist_referers, set the referer ready for the next request
- if ($this->persist_referers) {
- $this->debug('Persisting referer: '.$this->getRequestURL());
- $this->referer = $this->getRequestURL();
- }
- // Finally, if handle_redirects and a redirect is sent, do that
- if ($this->handle_redirects) {
- if (++$this->redirect_count >= $this->max_redirects) {
- $this->errormsg = 'Number of redirects exceeded maximum ('.$this->max_redirects.')';
- $this->debug($this->errormsg);
- $this->redirect_count = 0;
- return false;
- }
- $location = isset($this->headers['location']) ? $this->headers['location'] : '';
- $uri = isset($this->headers['uri']) ? $this->headers['uri'] : '';
- if ($location || $uri) {
- $url = parse_url($location.$uri);
- // This will FAIL if redirect is to a different site
- return $this->get($url['path']);
- }
- }
- return true;
- }
- function buildRequest() {
- $headers = array();
- $headers[] = "{$this->method} {$this->path} HTTP/1.0"; // Using 1.1 leads to all manner of problems, such as "chunked" encoding
- $headers[] = "Host: {$this->host}";
- $headers[] = "User-Agent: {$this->user_agent}";
- $headers[] = "Accept: {$this->accept}";
- if ($this->use_gzip) {
- $headers[] = "Accept-encoding: {$this->accept_encoding}";
- }
- $headers[] = "Accept-language: {$this->accept_language}";
- if ($this->referer) {
- $headers[] = "Referer: {$this->referer}";
- }
- // Cookies
- if ($this->cookies) {
- $cookie = 'Cookie: ';
- foreach ($this->cookies as $key => $value) {
- $cookie .= "$key=$value; ";
- }
- $headers[] = $cookie;
- }
- // Basic authentication
- if ($this->username && $this->password) {
- $headers[] = 'Authorization: BASIC '.base64_encode($this->username.':'.$this->password);
- }
- // If this is a POST, set the content type and length
- if ($this->postdata) {
- $headers[] = 'Content-Type: application/x-www-form-urlencoded';
- $headers[] = 'Content-Length: '.strlen($this->postdata);
- }
- $request = implode("\r\n", $headers)."\r\n\r\n".$this->postdata;
- return $request;
- }
- function getStatus() {
- return $this->status;
- }
- function getContent() {
- return $this->content;
- }
- function getHeaders() {
- return $this->headers;
- }
- function getHeader($header) {
- $header = strtolower($header);
- if (isset($this->headers[$header])) {
- return $this->headers[$header];
- } else {
- return false;
- }
- }
- function getError() {
- return $this->errormsg;
- }
- function getCookies() {
- return $this->cookies;
- }
- function getRequestURL() {
- $url = 'http://'.$this->host;
- if ($this->port != 80) {
- $url .= ':'.$this->port;
- }
- $url .= $this->path;
- return $url;
- }
- // Setter methods
- function setUserAgent($string) {
- $this->user_agent = $string;
- }
- function setAuthorization($username, $password) {
- $this->username = $username;
- $this->password = $password;
- }
- function setCookies($array) {
- $this->cookies = $array;
- }
- // Option setting methods
- function useGzip($boolean) {
- $this->use_gzip = $boolean;
- }
- function setPersistCookies($boolean) {
- $this->persist_cookies = $boolean;
- }
- function setPersistReferers($boolean) {
- $this->persist_referers = $boolean;
- }
- function setHandleRedirects($boolean) {
- $this->handle_redirects = $boolean;
- }
- function setMaxRedirects($num) {
- $this->max_redirects = $num;
- }
- function setHeadersOnly($boolean) {
- $this->headers_only = $boolean;
- }
- function setDebug($boolean) {
- $this->debug = $boolean;
- }
- // "Quick" static methods
- function quickGet($url) {
- $bits = parse_url($url);
- $host = $bits['host'];
- $port = isset($bits['port']) ? $bits['port'] : 80;
- $path = isset($bits['path']) ? $bits['path'] : '/';
- if (isset($bits['query'])) {
- $path .= '?'.$bits['query'];
- }
- $client = new HttpClient($host, $port);
- if (!$client->get($path)) {
- return false;
- } else {
- return $client->getContent();
- }
- }
- function quickPost($url, $data) {
- $bits = parse_url($url);
- $host = $bits['host'];
- $port = isset($bits['port']) ? $bits['port'] : 80;
- $path = isset($bits['path']) ? $bits['path'] : '/';
- $client = new HttpClient($host, $port);
- if (!$client->post($path, $data)) {
- return false;
- } else {
- return $client->getContent();
- }
- }
- function debug($msg, $object = false) {
- if ($this->debug) {
- print '<div style="border: 1px solid red; padding: 0.5em; margin: 0.5em;"><strong>HttpClient Debug:</strong> '.$msg;
- if ($object) {
- ob_start();
- print_r($object);
- $content = htmlentities(ob_get_contents());
- ob_end_clean();
- print '<pre>'.$content.'</pre>';
- }
- print '</div>';
- }
- }
- }
- ?>