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dokuwiki
| Conditions | 88 |
| Paths | > 20000 |
| Total Lines | 313 |
| Code Lines | 202 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php |
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| 244 | function sendRequest($url,$data='',$method='GET'){ |
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| 245 | $this->start = $this->_time(); |
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| 246 | $this->error = ''; |
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| 247 | $this->status = 0; |
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| 248 | $this->status = 0; |
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| 249 | $this->resp_body = ''; |
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| 250 | $this->resp_headers = array(); |
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| 251 | |||
| 252 | // don't accept gzip if truncated bodies might occur |
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| 253 | if($this->max_bodysize && |
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| 254 | !$this->max_bodysize_abort && |
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| 255 | $this->headers['Accept-encoding'] == 'gzip'){ |
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| 256 | unset($this->headers['Accept-encoding']); |
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| 257 | } |
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| 258 | |||
| 259 | // parse URL into bits |
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| 260 | $uri = parse_url($url); |
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| 261 | $server = $uri['host']; |
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| 262 | $path = $uri['path']; |
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| 263 | if(empty($path)) $path = '/'; |
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| 264 | if(!empty($uri['query'])) $path .= '?'.$uri['query']; |
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| 265 | if(!empty($uri['port'])) $port = $uri['port']; |
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| 266 | if(isset($uri['user'])) $this->user = $uri['user']; |
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| 267 | if(isset($uri['pass'])) $this->pass = $uri['pass']; |
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| 268 | |||
| 269 | // proxy setup |
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| 270 | if($this->proxy_host && (!$this->proxy_except || !preg_match('/'.$this->proxy_except.'/i',$url)) ){ |
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| 271 | $request_url = $url; |
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| 272 | $server = $this->proxy_host; |
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| 273 | $port = $this->proxy_port; |
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| 274 | if (empty($port)) $port = 8080; |
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| 275 | $use_tls = $this->proxy_ssl; |
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| 276 | }else{ |
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| 277 | $request_url = $path; |
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| 278 | if (!isset($port)) $port = ($uri['scheme'] == 'https') ? 443 : 80; |
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| 279 | $use_tls = ($uri['scheme'] == 'https'); |
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| 280 | } |
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| 281 | |||
| 282 | // add SSL stream prefix if needed - needs SSL support in PHP |
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| 283 | if($use_tls) { |
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| 284 | if(!in_array('ssl', stream_get_transports())) { |
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| 285 | $this->status = -200; |
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| 286 | $this->error = 'This PHP version does not support SSL - cannot connect to server'; |
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| 287 | } |
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| 288 | $server = 'ssl://'.$server; |
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| 289 | } |
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| 290 | |||
| 291 | // prepare headers |
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| 292 | $headers = $this->headers; |
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| 293 | $headers['Host'] = $uri['host']; |
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| 294 | if(!empty($uri['port'])) $headers['Host'].= ':'.$uri['port']; |
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| 295 | $headers['User-Agent'] = $this->agent; |
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| 296 | $headers['Referer'] = $this->referer; |
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| 297 | |||
| 298 | if($method == 'POST'){ |
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| 299 | if(is_array($data)){ |
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| 300 | if($headers['Content-Type'] == 'multipart/form-data'){ |
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| 301 | $headers['Content-Type'] = 'multipart/form-data; boundary='.$this->boundary; |
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| 302 | $data = $this->_postMultipartEncode($data); |
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| 303 | }else{ |
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| 304 | $headers['Content-Type'] = 'application/x-www-form-urlencoded'; |
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| 305 | $data = $this->_postEncode($data); |
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| 306 | } |
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| 307 | } |
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| 308 | $headers['Content-Length'] = strlen($data); |
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| 309 | }elseif($method == 'GET'){ |
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| 310 | $data = ''; //no data allowed on GET requests |
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| 311 | } |
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| 312 | if($this->user) { |
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| 313 | $headers['Authorization'] = 'Basic '.base64_encode($this->user.':'.$this->pass); |
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| 314 | } |
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| 315 | if($this->proxy_user) { |
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| 316 | $headers['Proxy-Authorization'] = 'Basic '.base64_encode($this->proxy_user.':'.$this->proxy_pass); |
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| 317 | } |
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| 318 | |||
| 319 | // already connected? |
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| 320 | $connectionId = $this->_uniqueConnectionId($server,$port); |
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| 321 | $this->_debug('connection pool', self::$connections); |
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| 322 | $socket = null; |
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| 323 | if (isset(self::$connections[$connectionId])) { |
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| 324 | $this->_debug('reusing connection', $connectionId); |
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| 325 | $socket = self::$connections[$connectionId]; |
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| 326 | } |
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| 327 | if (is_null($socket) || feof($socket)) { |
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| 328 | $this->_debug('opening connection', $connectionId); |
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| 329 | // open socket |
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| 330 | $socket = @fsockopen($server,$port,$errno, $errstr, $this->timeout); |
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| 331 | if (!$socket){ |
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| 332 | $this->status = -100; |
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| 333 | $this->error = "Could not connect to $server:$port\n$errstr ($errno)"; |
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| 334 | return false; |
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| 335 | } |
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| 336 | |||
| 337 | // try establish a CONNECT tunnel for SSL |
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| 338 | try { |
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| 339 | if($this->_ssltunnel($socket, $request_url)){ |
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| 340 | // no keep alive for tunnels |
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| 341 | $this->keep_alive = false; |
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| 342 | // tunnel is authed already |
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| 343 | if(isset($headers['Proxy-Authentication'])) unset($headers['Proxy-Authentication']); |
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| 344 | } |
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| 345 | } catch (HTTPClientException $e) { |
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| 346 | $this->status = $e->getCode(); |
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| 347 | $this->error = $e->getMessage(); |
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| 348 | fclose($socket); |
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| 349 | return false; |
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| 350 | } |
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| 351 | |||
| 352 | // keep alive? |
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| 353 | if ($this->keep_alive) { |
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| 354 | self::$connections[$connectionId] = $socket; |
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| 355 | } else { |
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| 356 | unset(self::$connections[$connectionId]); |
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| 357 | } |
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| 358 | } |
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| 359 | |||
| 360 | if ($this->keep_alive && !$this->proxy_host) { |
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| 361 | // RFC 2068, section 19.7.1: A client MUST NOT send the Keep-Alive |
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| 362 | // connection token to a proxy server. We still do keep the connection the |
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| 363 | // proxy alive (well except for CONNECT tunnels) |
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| 364 | $headers['Connection'] = 'Keep-Alive'; |
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| 365 | } else { |
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| 366 | $headers['Connection'] = 'Close'; |
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| 367 | } |
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| 368 | |||
| 369 | try { |
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| 370 | //set non-blocking |
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| 371 | stream_set_blocking($socket, 0); |
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| 372 | |||
| 373 | // build request |
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| 374 | $request = "$method $request_url HTTP/".$this->http.HTTP_NL; |
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| 375 | $request .= $this->_buildHeaders($headers); |
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| 376 | $request .= $this->_getCookies(); |
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| 377 | $request .= HTTP_NL; |
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| 378 | $request .= $data; |
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| 379 | |||
| 380 | $this->_debug('request',$request); |
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| 381 | $this->_sendData($socket, $request, 'request'); |
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| 382 | |||
| 383 | // read headers from socket |
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| 384 | $r_headers = ''; |
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| 385 | do{ |
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| 386 | $r_line = $this->_readLine($socket, 'headers'); |
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| 387 | $r_headers .= $r_line; |
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| 388 | }while($r_line != "\r\n" && $r_line != "\n"); |
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| 389 | |||
| 390 | $this->_debug('response headers',$r_headers); |
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| 391 | |||
| 392 | // check if expected body size exceeds allowance |
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| 393 | if($this->max_bodysize && preg_match('/\r?\nContent-Length:\s*(\d+)\r?\n/i',$r_headers,$match)){ |
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| 394 | if($match[1] > $this->max_bodysize){ |
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| 395 | if ($this->max_bodysize_abort) |
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| 396 | throw new HTTPClientException('Reported content length exceeds allowed response size'); |
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| 397 | else |
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| 398 | $this->error = 'Reported content length exceeds allowed response size'; |
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| 399 | } |
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| 400 | } |
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| 401 | |||
| 402 | // get Status |
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| 403 | if (!preg_match('/^HTTP\/(\d\.\d)\s*(\d+).*?\n/', $r_headers, $m)) |
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| 404 | throw new HTTPClientException('Server returned bad answer '.$r_headers); |
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| 405 | |||
| 406 | $this->status = $m[2]; |
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| 407 | |||
| 408 | // handle headers and cookies |
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| 409 | $this->resp_headers = $this->_parseHeaders($r_headers); |
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| 410 | if(isset($this->resp_headers['set-cookie'])){ |
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| 411 | foreach ((array) $this->resp_headers['set-cookie'] as $cookie){ |
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| 412 | list($cookie) = explode(';',$cookie,2); |
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| 413 | list($key,$val) = explode('=',$cookie,2); |
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| 414 | $key = trim($key); |
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| 415 | if($val == 'deleted'){ |
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| 416 | if(isset($this->cookies[$key])){ |
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| 417 | unset($this->cookies[$key]); |
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| 418 | } |
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| 419 | }elseif($key){ |
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| 420 | $this->cookies[$key] = $val; |
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| 421 | } |
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| 422 | } |
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| 423 | } |
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| 424 | |||
| 425 | $this->_debug('Object headers',$this->resp_headers); |
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| 426 | |||
| 427 | // check server status code to follow redirect |
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| 428 | if($this->status == 301 || $this->status == 302 ){ |
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| 429 | if (empty($this->resp_headers['location'])){ |
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| 430 | throw new HTTPClientException('Redirect but no Location Header found'); |
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| 431 | }elseif($this->redirect_count == $this->max_redirect){ |
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| 432 | throw new HTTPClientException('Maximum number of redirects exceeded'); |
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| 433 | }else{ |
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| 434 | // close the connection because we don't handle content retrieval here |
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| 435 | // that's the easiest way to clean up the connection |
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| 436 | fclose($socket); |
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| 437 | unset(self::$connections[$connectionId]); |
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| 438 | |||
| 439 | $this->redirect_count++; |
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| 440 | $this->referer = $url; |
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| 441 | // handle non-RFC-compliant relative redirects |
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| 442 | if (!preg_match('/^http/i', $this->resp_headers['location'])){ |
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| 443 | if($this->resp_headers['location'][0] != '/'){ |
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| 444 | $this->resp_headers['location'] = $uri['scheme'].'://'.$uri['host'].':'.$uri['port']. |
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| 445 | dirname($uri['path']).'/'.$this->resp_headers['location']; |
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| 446 | }else{ |
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| 447 | $this->resp_headers['location'] = $uri['scheme'].'://'.$uri['host'].':'.$uri['port']. |
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| 448 | $this->resp_headers['location']; |
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| 449 | } |
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| 450 | } |
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| 451 | // perform redirected request, always via GET (required by RFC) |
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| 452 | return $this->sendRequest($this->resp_headers['location'],array(),'GET'); |
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| 453 | } |
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| 454 | } |
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| 455 | |||
| 456 | // check if headers are as expected |
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| 457 | if($this->header_regexp && !preg_match($this->header_regexp,$r_headers)) |
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| 458 | throw new HTTPClientException('The received headers did not match the given regexp'); |
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| 459 | |||
| 460 | //read body (with chunked encoding if needed) |
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| 461 | $r_body = ''; |
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| 462 | if((isset($this->resp_headers['transfer-encoding']) && $this->resp_headers['transfer-encoding'] == 'chunked') |
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| 463 | || (isset($this->resp_headers['transfer-coding']) && $this->resp_headers['transfer-coding'] == 'chunked')){ |
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| 464 | $abort = false; |
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| 465 | do { |
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| 466 | $chunk_size = ''; |
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| 467 | while (preg_match('/^[a-zA-Z0-9]?$/',$byte=$this->_readData($socket,1,'chunk'))){ |
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| 468 | // read chunksize until \r |
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| 469 | $chunk_size .= $byte; |
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| 470 | if (strlen($chunk_size) > 128) // set an abritrary limit on the size of chunks |
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| 471 | throw new HTTPClientException('Allowed response size exceeded'); |
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| 472 | } |
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| 473 | $this->_readLine($socket, 'chunk'); // readtrailing \n |
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| 474 | $chunk_size = hexdec($chunk_size); |
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| 475 | |||
| 476 | if($this->max_bodysize && $chunk_size+strlen($r_body) > $this->max_bodysize){ |
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| 477 | if ($this->max_bodysize_abort) |
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| 478 | throw new HTTPClientException('Allowed response size exceeded'); |
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| 479 | $this->error = 'Allowed response size exceeded'; |
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| 480 | $chunk_size = $this->max_bodysize - strlen($r_body); |
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| 481 | $abort = true; |
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| 482 | } |
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| 483 | |||
| 484 | if ($chunk_size > 0) { |
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| 485 | $r_body .= $this->_readData($socket, $chunk_size, 'chunk'); |
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| 486 | $this->_readData($socket, 2, 'chunk'); // read trailing \r\n |
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| 487 | } |
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| 488 | } while ($chunk_size && !$abort); |
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| 489 | }elseif(isset($this->resp_headers['content-length']) && !isset($this->resp_headers['transfer-encoding'])){ |
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| 490 | /* RFC 2616 |
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| 491 | * If a message is received with both a Transfer-Encoding header field and a Content-Length |
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| 492 | * header field, the latter MUST be ignored. |
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| 493 | */ |
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| 494 | |||
| 495 | // read up to the content-length or max_bodysize |
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| 496 | // for keep alive we need to read the whole message to clean up the socket for the next read |
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| 497 | if(!$this->keep_alive && $this->max_bodysize && $this->max_bodysize < $this->resp_headers['content-length']){ |
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| 498 | $length = $this->max_bodysize; |
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| 499 | }else{ |
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| 500 | $length = $this->resp_headers['content-length']; |
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| 501 | } |
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| 502 | |||
| 503 | $r_body = $this->_readData($socket, $length, 'response (content-length limited)', true); |
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| 504 | }elseif( !isset($this->resp_headers['transfer-encoding']) && $this->max_bodysize && !$this->keep_alive){ |
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| 505 | $r_body = $this->_readData($socket, $this->max_bodysize, 'response (content-length limited)', true); |
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| 506 | }else{ |
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| 507 | // read entire socket |
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| 508 | while (!feof($socket)) { |
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| 509 | $r_body .= $this->_readData($socket, 4096, 'response (unlimited)', true); |
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| 510 | } |
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| 511 | } |
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| 512 | |||
| 513 | // recheck body size, we might had to read the whole body, so we abort late or trim here |
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| 514 | if($this->max_bodysize){ |
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| 515 | if(strlen($r_body) > $this->max_bodysize){ |
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| 516 | if ($this->max_bodysize_abort) { |
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| 517 | throw new HTTPClientException('Allowed response size exceeded'); |
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| 518 | } else { |
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| 519 | $this->error = 'Allowed response size exceeded'; |
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| 520 | } |
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| 521 | } |
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| 522 | } |
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| 523 | |||
| 524 | } catch (HTTPClientException $err) { |
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| 525 | $this->error = $err->getMessage(); |
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| 526 | if ($err->getCode()) |
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| 527 | $this->status = $err->getCode(); |
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| 528 | unset(self::$connections[$connectionId]); |
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| 529 | fclose($socket); |
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| 530 | return false; |
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| 531 | } |
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| 532 | |||
| 533 | if (!$this->keep_alive || |
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| 534 | (isset($this->resp_headers['connection']) && $this->resp_headers['connection'] == 'Close')) { |
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| 535 | // close socket |
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| 536 | fclose($socket); |
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| 537 | unset(self::$connections[$connectionId]); |
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| 538 | } |
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| 539 | |||
| 540 | // decode gzip if needed |
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| 541 | if(isset($this->resp_headers['content-encoding']) && |
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| 542 | $this->resp_headers['content-encoding'] == 'gzip' && |
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| 543 | strlen($r_body) > 10 && substr($r_body,0,3)=="\x1f\x8b\x08"){ |
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| 544 | $this->resp_body = @gzinflate(substr($r_body, 10)); |
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| 545 | if($this->resp_body === false){ |
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| 546 | $this->error = 'Failed to decompress gzip encoded content'; |
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| 547 | $this->resp_body = $r_body; |
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| 548 | } |
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| 549 | }else{ |
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| 550 | $this->resp_body = $r_body; |
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| 551 | } |
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| 552 | |||
| 553 | $this->_debug('response body',$this->resp_body); |
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| 554 | $this->redirect_count = 0; |
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| 555 | return true; |
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| 556 | } |
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| 557 | |||
| 934 |
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Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.