5 Version 0.9, 6th April 2003 - Simon Willison ( http://simon.incutio.com/ )
6 Manual: http://scripts.incutio.com/httpclient/
8 Copyright © 2003 Incutio Limited
9 License: http://www.opensource.org/licenses/artistic-license.php
11 File upload and xmlrpc support by Reini Urban for PhpWiki, 2006-12-28 18:12:47
22 var $cookies = array();
24 var $accept = 'text/xml,application/xml,application/xhtml+xml,text/html,text/plain,image/png,image/jpeg,image/gif,*/*';
25 var $accept_encoding = 'gzip';
26 var $accept_language = 'en-us';
27 var $user_agent = 'Incutio HttpClient v1.0';
28 var $boundary = "xYzZY"; // FIXME: check if this string doesn't occur in the data
32 var $persist_cookies = true; // If true, received cookies are placed in the $this->cookies array ready for the next request
33 // Note: This currently ignores the cookie path (and time) completely. Time is not important,
34 // but path could possibly lead to security problems.
35 var $persist_referers = true; // For each request, sends path of last request as referer
37 var $handle_redirects = true; // Auaomtically redirect if Location or URI header is found
38 var $max_redirects = 5;
39 var $headers_only = false; // If true, stops receiving once headers have been read.
40 // Basic authorization variables
45 var $headers = array();
49 var $redirect_count = 0;
50 var $cookie_host = '';
52 function HttpClient($host='localhost', $port=80) {
56 function get($path, $data = false) {
58 $this->method = 'GET';
60 $this->path .= '?'.$this->buildQueryString($data);
62 return $this->doRequest();
64 function post($path, $data) {
66 $this->method = 'POST';
67 $this->postdata = $this->buildQueryString($data);
68 return $this->doRequest();
70 function postfile($path, $filename) {
72 $this->method = 'POST';
73 $boundary = $this->boundary; //"httpclient_boundary";
74 $headers[] = "Content-Type: multipart/form-data; boundary=\"$boundary\"";
75 $basename = basename($filename);
78 ."Content-Disposition: form-data; filename=\"$basename\"\r\n"
79 ."Content-Type: application/octet-stream\r\n\r\n";
80 $this->postdata .= join("",file($filename));
81 $this->postdata .= "\r\n\r\n--$boundary--\r\n";
82 return $this->doRequest();
84 function buildQueryString($data) {
86 if (is_array($data)) {
87 // Change data in to postable data
88 foreach ($data as $key => $val) {
90 foreach ($val as $val2) {
91 $querystring .= urlencode($key).'='.urlencode($val2).'&';
94 $querystring .= urlencode($key).'='.urlencode($val).'&';
97 $querystring = substr($querystring, 0, -1); // Eliminate unnecessary &
104 function doRequest() {
105 // Performs the actual HTTP request, returning true or false depending on outcome
106 // Ensure that the PHP timeout is longer than the socket timeout
107 longer_timeout($this->timeout);
108 if (!$fp = @fsockopen($this->host, $this->port, $errno, $errstr, $this->timeout)) {
112 $this->errormsg = 'Socket creation failed (-3)';
114 $this->errormsg = 'DNS lookup failure (-4)';
116 $this->errormsg = 'Connection refused or timed out (-5)';
118 $this->errormsg = 'Connection failed ('.$errno.')';
119 $this->errormsg .= ' '.$errstr;
120 $this->debug($this->errormsg);
124 if (check_php_version(4,3,0))
125 socket_set_timeout($fp, $this->timeout);
126 if ( $this->method == 'POST' and preg_match("/\<methodCall\>/", $this->postdata))
127 $request = $this->buildRequest("text/xml"); //xmlrpc
128 else if ( $this->method == 'POST' and strstr("\r\nContent-Disposition: form-data; filename=",
132 $boundary = $this->boundary;
133 $request = $this->buildRequest("multipart/form-data; boundary=\"$boundary\"");
135 $request = $this->buildRequest();
136 $this->debug('Request', $request);
137 fwrite($fp, $request);
138 // Reset all the variables that should not persist between requests
139 $this->headers = array();
141 $this->errormsg = '';
142 // Set a couple of flags
145 // Now start reading back the response
147 $line = fgets($fp, 4096);
149 // Deal with first line of returned data
151 if (!preg_match('/HTTP\/(\\d\\.\\d)\\s*(\\d+)\\s*(.*)/', $line, $m)) {
152 $this->errormsg = "Status code line invalid: ".htmlentities($line);
153 $this->debug($this->errormsg);
156 $http_version = $m[1]; // not used
157 $this->status = $m[2];
158 $status_string = $m[3]; // not used
159 $this->debug(trim($line));
163 if (trim($line) == '') {
165 $this->debug('Received Headers', $this->headers);
166 if ($this->headers_only) {
167 break; // Skip the rest of the input
171 if (!preg_match('/([^:]+):\\s*(.*)/', $line, $m)) {
172 // Skip to the next header
175 $key = strtolower(trim($m[1]));
177 // Deal with the possibility of multiple headers of same name
178 if (isset($this->headers[$key])) {
179 if (is_array($this->headers[$key])) {
180 $this->headers[$key][] = $val;
182 $this->headers[$key] = array($this->headers[$key], $val);
185 $this->headers[$key] = $val;
189 // We're not in the headers, so append the line to the contents
190 $this->content .= $line;
193 // If data is compressed, uncompress it
194 if (isset($this->headers['content-encoding']) && $this->headers['content-encoding'] == 'gzip') {
195 $this->debug('Content is gzip encoded, unzipping it');
196 $this->content = substr($this->content, 10); // See http://www.php.net/manual/en/function.gzencode.php
197 $this->content = gzinflate($this->content);
199 // If $persist_cookies, deal with any cookies
200 if ($this->persist_cookies && isset($this->headers['set-cookie']) && $this->host == $this->cookie_host) {
201 $cookies = $this->headers['set-cookie'];
202 if (!is_array($cookies)) {
203 $cookies = array($cookies);
205 foreach ($cookies as $cookie) {
206 if (preg_match('/([^=]+)=([^;]+);/', $cookie, $m)) {
207 $this->cookies[$m[1]] = $m[2];
210 // Record domain of cookies for security reasons
211 $this->cookie_host = $this->host;
213 if ($this->status == '401') {
214 $this->errormsg = '401 ' . $status_string;
217 // If $persist_referers, set the referer ready for the next request
218 if (isset($this->persist_referers)) {
219 $this->debug('Persisting referer: '.$this->getRequestURL());
220 $this->referer = $this->getRequestURL();
222 // Finally, if handle_redirects and a redirect is sent, do that
223 if (isset($this->handle_redirects)) {
224 if (++$this->redirect_count >= $this->max_redirects) {
225 $this->errormsg = 'Number of redirects exceeded maximum ('.$this->max_redirects.')';
226 $this->debug($this->errormsg);
227 $this->redirect_count = 0;
230 $location = isset($this->headers['location']) ? $this->headers['location'] : '';
231 $uri = isset($this->headers['uri']) ? $this->headers['uri'] : '';
232 if ($location || $uri) {
233 $url = parse_url($location.$uri);
234 if ($this->method == 'POST')
235 return $this->doRequest();
237 // This will FAIL if redirect is to a different site
238 return $this->get($url['path']);
244 function buildRequest($ContentType = 'application/x-www-form-urlencoded') {
246 // Using 1.1 leads to all manner of problems, such as "chunked" encoding
247 $headers[] = "{$this->method} {$this->path} HTTP/1.0";
248 $headers[] = "Host: {$this->host}";
249 $headers[] = "User-Agent: {$this->user_agent}";
250 $headers[] = "Accept: {$this->accept}";
251 if ($this->use_gzip) {
252 $headers[] = "Accept-encoding: {$this->accept_encoding}";
254 $headers[] = "Accept-language: {$this->accept_language}";
255 if (!empty($this->referer)) {
256 $headers[] = "Referer: {$this->referer}";
259 if (!empty($this->cookies)) {
260 $cookie = 'Cookie: ';
261 foreach ($this->cookies as $key => $value) {
262 $cookie .= "$key=$value; ";
264 $headers[] = $cookie;
266 // Basic authentication
267 if (!empty($this->username) && !empty($this->password)) {
268 $headers[] = 'Authorization: BASIC '.base64_encode($this->username.':'.$this->password);
270 // If this is a POST, set the content type and length
271 if ($this->postdata) {
272 $headers[] = 'Content-Type: ' . $ContentType;
273 $headers[] = 'Content-Length: '.strlen($this->postdata);
275 $request = implode("\r\n", $headers)."\r\n\r\n".$this->postdata;
278 function getStatus() {
279 return $this->status;
281 function getContent() {
282 return $this->content;
284 function getHeaders() {
285 return $this->headers;
287 function getHeader($header) {
288 $header = strtolower($header);
289 if (isset($this->headers[$header])) {
290 return $this->headers[$header];
295 function getError() {
296 return $this->errormsg;
298 function getCookies() {
299 return $this->cookies;
301 function getRequestURL() {
302 $url = 'http://'.$this->host;
303 if ($this->port != 80) {
304 $url = 'https://'.$this->host;
305 $url .= ':'.$this->port;
311 function setUserAgent($string) {
312 $this->user_agent = $string;
314 function setAuthorization($username, $password) {
315 $this->username = $username;
316 $this->password = $password;
318 function setCookies($array) {
319 $this->cookies = $array;
321 // Option setting methods
322 function useGzip($boolean) {
323 $this->use_gzip = $boolean;
325 function setPersistCookies($boolean) {
326 $this->persist_cookies = $boolean;
328 function setPersistReferers($boolean) {
329 $this->persist_referers = $boolean;
331 function setHandleRedirects($boolean) {
332 $this->handle_redirects = $boolean;
334 function setMaxRedirects($num) {
335 $this->max_redirects = $num;
337 function setHeadersOnly($boolean) {
338 $this->headers_only = $boolean;
340 function setDebug($boolean) {
341 $this->debug = $boolean;
343 // "Quick" static methods
344 function quickGet($url) {
345 $bits = parse_url($url);
346 $host = $bits['host'];
347 $port = isset($bits['port']) ? $bits['port'] : 80;
348 $path = isset($bits['path']) ? $bits['path'] : '/';
349 if (isset($bits['query'])) {
350 $path .= '?'.$bits['query'];
352 $client = new HttpClient($host, $port);
353 if (!$client->get($path)) {
356 return $client->getContent();
359 function quickPost($url, $data) {
360 $bits = parse_url($url);
361 $host = $bits['host'];
362 $port = isset($bits['port']) ? $bits['port'] : 80;
363 $path = isset($bits['path']) ? $bits['path'] : '/';
364 $client = new HttpClient($host, $port);
365 if (!$client->post($path, $data)) {
368 return $client->getContent();
371 function debug($msg, $object = false) {
373 print '<div style="border: 1px solid red; padding: 0.5em; margin: 0.5em;"><strong>HttpClient Debug:</strong> '.$msg;
377 $content = htmlentities(ob_get_contents());
379 print '<pre>'.$content.'</pre>';
391 // c-hanging-comment-ender-p: nil
392 // indent-tabs-mode: nil