library/SimplePie/File.php Quellcode

File.php
gehe zur Dokumentation dieser Datei
1 <?php
56 class SimplePie_File
57 {
58  var $url;
59  var $useragent;
60  var $success = true;
61  var $headers = array();
62  var $body;
63  var $status_code;
64  var $redirects = 0;
65  var $error;
66  var $method = SIMPLEPIE_FILE_SOURCE_NONE;
67 
68  public function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false)
69  {
70  if (class_exists('idna_convert'))
71  {
72  $idn = new idna_convert();
73  $parsed = SimplePie_Misc::parse_url($url);
74  $url = SimplePie_Misc::compress_parse_url($parsed['scheme'], $idn->encode($parsed['authority']), $parsed['path'], $parsed['query'], $parsed['fragment']);
75  }
76  $this->url = $url;
77  $this->useragent = $useragent;
78  if (preg_match('/^http(s)?:\/\//i', $url))
79  {
80  if ($useragent === null)
81  {
82  $useragent = ini_get('user_agent');
83  $this->useragent = $useragent;
84  }
85  if (!is_array($headers))
86  {
87  $headers = array();
88  }
89  if (!$force_fsockopen && function_exists('curl_exec'))
90  {
91  $this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_CURL;
92  $fp = curl_init();
93  $headers2 = array();
94  foreach ($headers as $key => $value)
95  {
96  $headers2[] = "$key: $value";
97  }
98  if (version_compare(SimplePie_Misc::get_curl_version(), '7.10.5', '>='))
99  {
100  curl_setopt($fp, CURLOPT_ENCODING, '');
101  }
102  curl_setopt($fp, CURLOPT_URL, $url);
103  curl_setopt($fp, CURLOPT_HEADER, 1);
104  curl_setopt($fp, CURLOPT_RETURNTRANSFER, 1);
105  curl_setopt($fp, CURLOPT_TIMEOUT, $timeout);
106  curl_setopt($fp, CURLOPT_CONNECTTIMEOUT, $timeout);
107  curl_setopt($fp, CURLOPT_REFERER, $url);
108  curl_setopt($fp, CURLOPT_USERAGENT, $useragent);
109  curl_setopt($fp, CURLOPT_HTTPHEADER, $headers2);
110  if (!ini_get('open_basedir') && !ini_get('safe_mode') && version_compare(SimplePie_Misc::get_curl_version(), '7.15.2', '>='))
111  {
112  curl_setopt($fp, CURLOPT_FOLLOWLOCATION, 1);
113  curl_setopt($fp, CURLOPT_MAXREDIRS, $redirects);
114  }
115 
116  $this->headers = curl_exec($fp);
117  if (curl_errno($fp) === 23 || curl_errno($fp) === 61)
118  {
119  curl_setopt($fp, CURLOPT_ENCODING, 'none');
120  $this->headers = curl_exec($fp);
121  }
122  if (curl_errno($fp))
123  {
124  $this->error = 'cURL error ' . curl_errno($fp) . ': ' . curl_error($fp);
125  $this->success = false;
126  }
127  else
128  {
129  $info = curl_getinfo($fp);
130  curl_close($fp);
131  $this->headers = explode("\r\n\r\n", $this->headers, $info['redirect_count'] + 1);
132  $this->headers = array_pop($this->headers);
133  $parser = new SimplePie_HTTP_Parser($this->headers);
134  if ($parser->parse())
135  {
136  $this->headers = $parser->headers;
137  $this->body = $parser->body;
138  $this->status_code = $parser->status_code;
139  if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
140  {
141  $this->redirects++;
142  $location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
143  return $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
144  }
145  }
146  }
147  }
148  else
149  {
150  $this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_FSOCKOPEN;
151  $url_parts = parse_url($url);
152  $socket_host = $url_parts['host'];
153  if (isset($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'https')
154  {
155  $socket_host = "ssl://$url_parts[host]";
156  $url_parts['port'] = 443;
157  }
158  if (!isset($url_parts['port']))
159  {
160  $url_parts['port'] = 80;
161  }
162  $fp = @fsockopen($socket_host, $url_parts['port'], $errno, $errstr, $timeout);
163  if (!$fp)
164  {
165  $this->error = 'fsockopen error: ' . $errstr;
166  $this->success = false;
167  }
168  else
169  {
170  stream_set_timeout($fp, $timeout);
171  if (isset($url_parts['path']))
172  {
173  if (isset($url_parts['query']))
174  {
175  $get = "$url_parts[path]?$url_parts[query]";
176  }
177  else
178  {
179  $get = $url_parts['path'];
180  }
181  }
182  else
183  {
184  $get = '/';
185  }
186  $out = "GET $get HTTP/1.1\r\n";
187  $out .= "Host: $url_parts[host]\r\n";
188  $out .= "User-Agent: $useragent\r\n";
189  if (extension_loaded('zlib'))
190  {
191  $out .= "Accept-Encoding: x-gzip,gzip,deflate\r\n";
192  }
193 
194  if (isset($url_parts['user']) && isset($url_parts['pass']))
195  {
196  $out .= "Authorization: Basic " . base64_encode("$url_parts[user]:$url_parts[pass]") . "\r\n";
197  }
198  foreach ($headers as $key => $value)
199  {
200  $out .= "$key: $value\r\n";
201  }
202  $out .= "Connection: Close\r\n\r\n";
203  fwrite($fp, $out);
204 
205  $info = stream_get_meta_data($fp);
206 
207  $this->headers = '';
208  while (!$info['eof'] && !$info['timed_out'])
209  {
210  $this->headers .= fread($fp, 1160);
211  $info = stream_get_meta_data($fp);
212  }
213  if (!$info['timed_out'])
214  {
215  $parser = new SimplePie_HTTP_Parser($this->headers);
216  if ($parser->parse())
217  {
218  $this->headers = $parser->headers;
219  $this->body = $parser->body;
220  $this->status_code = $parser->status_code;
221  if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
222  {
223  $this->redirects++;
224  $location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
225  return $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
226  }
227  if (isset($this->headers['content-encoding']))
228  {
229  // Hey, we act dumb elsewhere, so let's do that here too
230  switch (strtolower(trim($this->headers['content-encoding'], "\x09\x0A\x0D\x20")))
231  {
232  case 'gzip':
233  case 'x-gzip':
234  $decoder = new SimplePie_gzdecode($this->body);
235  if (!$decoder->parse())
236  {
237  $this->error = 'Unable to decode HTTP "gzip" stream';
238  $this->success = false;
239  }
240  else
241  {
242  $this->body = $decoder->data;
243  }
244  break;
245 
246  case 'deflate':
247  if (($decompressed = gzinflate($this->body)) !== false)
248  {
249  $this->body = $decompressed;
250  }
251  else if (($decompressed = gzuncompress($this->body)) !== false)
252  {
253  $this->body = $decompressed;
254  }
255  else if (function_exists('gzdecode') && ($decompressed = gzdecode($this->body)) !== false)
256  {
257  $this->body = $decompressed;
258  }
259  else
260  {
261  $this->error = 'Unable to decode HTTP "deflate" stream';
262  $this->success = false;
263  }
264  break;
265 
266  default:
267  $this->error = 'Unknown content coding';
268  $this->success = false;
269  }
270  }
271  }
272  }
273  else
274  {
275  $this->error = 'fsocket timed out';
276  $this->success = false;
277  }
278  fclose($fp);
279  }
280  }
281  }
282  else
283  {
284  $this->method = SIMPLEPIE_FILE_SOURCE_LOCAL | SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS;
285  if (!$this->body = file_get_contents($url))
286  {
287  $this->error = 'file_get_contents could not read the file';
288  $this->success = false;
289  }
290  }
291  }
292 }




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