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Code source de Dolibarr 2.0.1 |
1 <?php 2 3 /************************************************* 4 5 Snoopy - the PHP net client 6 Author: Monte Ohrt <monte@ispi.net> 7 Copyright (c): 1999-2000 ispi, all rights reserved 8 Version: 1.0 9 10 * This library is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU Lesser General Public 12 * License as published by the Free Software Foundation; either 13 * version 2.1 of the License, or (at your option) any later version. 14 * 15 * This library is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * Lesser General Public License for more details. 19 * 20 * You should have received a copy of the GNU Lesser General Public 21 * License along with this library; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 24 You may contact the author of Snoopy by e-mail at: 25 monte@ispi.net 26 27 Or, write to: 28 Monte Ohrt 29 CTO, ispi 30 237 S. 70th suite 220 31 Lincoln, NE 68510 32 33 The latest version of Snoopy can be obtained from: 34 http://snoopy.sourceforge.com 35 36 *************************************************/ 37 38 class Snoopy 39 { 40 /**** Public variables ****/ 41 42 /* user definable vars */ 43 44 var $host = "www.php.net"; // host name we are connecting to 45 var $port = 80; // port we are connecting to 46 var $proxy_host = ""; // proxy host to use 47 var $proxy_port = ""; // proxy port to use 48 var $agent = "Snoopy v1.0"; // agent we masquerade as 49 var $referer = ""; // referer info to pass 50 var $cookies = array(); // array of cookies to pass 51 // $cookies["username"]="joe"; 52 var $rawheaders = array(); // array of raw headers to send 53 // $rawheaders["Content-type"]="text/html"; 54 55 var $maxredirs = 5; // http redirection depth maximum. 0 = disallow 56 var $lastredirectaddr = ""; // contains address of last redirected address 57 var $offsiteok = true; // allows redirection off-site 58 var $maxframes = 0; // frame content depth maximum. 0 = disallow 59 var $expandlinks = true; // expand links to fully qualified URLs. 60 // this only applies to fetchlinks() 61 // or submitlinks() 62 var $passcookies = true; // pass set cookies back through redirects 63 // NOTE: this currently does not respect 64 // dates, domains or paths. 65 66 var $user = ""; // user for http authentication 67 var $pass = ""; // password for http authentication 68 69 // http accept types 70 var $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*"; 71 72 var $results = ""; // where the content is put 73 74 var $error = ""; // error messages sent here 75 var $response_code = ""; // response code returned from server 76 var $headers = array(); // headers returned from server sent here 77 var $maxlength = 500000; // max return data length (body) 78 var $read_timeout = 0; // timeout on read operations, in seconds 79 // supported only since PHP 4 Beta 4 80 // set to 0 to disallow timeouts 81 var $timed_out = false; // if a read operation timed out 82 var $status = 0; // http request status 83 84 var $curl_path = "/usr/bin/curl"; 85 // Snoopy will use cURL for fetching 86 // SSL content if a full system path to 87 // the cURL binary is supplied here. 88 // set to false if you do not have 89 // cURL installed. See http://curl.haxx.se 90 // for details on installing cURL. 91 // Snoopy does *not* use the cURL 92 // library functions built into php, 93 // as these functions are not stable 94 // as of this Snoopy release. 95 96 // send Accept-encoding: gzip? 97 var $use_gzip = true; 98 99 /**** Private variables ****/ 100 101 var $_maxlinelen = 4096; // max line length (headers) 102 103 var $_httpmethod = "GET"; // default http request method 104 var $_httpversion = "HTTP/1.0"; // default http request version 105 var $_submit_method = "POST"; // default submit method 106 var $_submit_type = "application/x-www-form-urlencoded"; // default submit type 107 var $_mime_boundary = ""; // MIME boundary for multipart/form-data submit type 108 var $_redirectaddr = false; // will be set if page fetched is a redirect 109 var $_redirectdepth = 0; // increments on an http redirect 110 var $_frameurls = array(); // frame src urls 111 var $_framedepth = 0; // increments on frame depth 112 113 var $_isproxy = false; // set if using a proxy server 114 var $_fp_timeout = 30; // timeout for socket connection 115 116 /*======================================================================*\ 117 Function: fetch 118 Purpose: fetch the contents of a web page 119 (and possibly other protocols in the 120 future like ftp, nntp, gopher, etc.) 121 Input: $URI the location of the page to fetch 122 Output: $this->results the output text from the fetch 123 \*======================================================================*/ 124 125 function fetch($URI) 126 { 127 128 //preg_match("|^([^:]+)://([^:/]+)(:[\d]+)*(.*)|",$URI,$URI_PARTS); 129 $URI_PARTS = parse_url($URI); 130 if (!empty($URI_PARTS["user"])) 131 $this->user = $URI_PARTS["user"]; 132 if (!empty($URI_PARTS["pass"])) 133 $this->pass = $URI_PARTS["pass"]; 134 135 switch($URI_PARTS["scheme"]) 136 { 137 case "http": 138 $this->host = $URI_PARTS["host"]; 139 if(!empty($URI_PARTS["port"])) 140 $this->port = $URI_PARTS["port"]; 141 142 // LDR FIX BUG syncronized connect timeout to read timeout, otherwise, read timeout is useless 143 if ($this->read_timeout) $this->_fp_timeout=$this->read_timeout; 144 145 if($this->_connect($fp)) 146 { 147 if($this->_isproxy) 148 { 149 // using proxy, send entire URI 150 $this->_httprequest($URI,$fp,$URI,$this->_httpmethod); 151 } 152 else 153 { 154 $path = $URI_PARTS["path"].(isset($URI_PARTS["query"]) ? "?".$URI_PARTS["query"] : ""); 155 // no proxy, send only the path 156 $this->_httprequest($path, $fp, $URI, $this->_httpmethod); 157 } 158 159 $this->_disconnect($fp); 160 161 if($this->_redirectaddr) 162 { 163 /* url was redirected, check if we've hit the max depth */ 164 if($this->maxredirs > $this->_redirectdepth) 165 { 166 // only follow redirect if it's on this site, or offsiteok is true 167 if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok) 168 { 169 /* follow the redirect */ 170 $this->_redirectdepth++; 171 $this->lastredirectaddr=$this->_redirectaddr; 172 $this->fetch($this->_redirectaddr); 173 } 174 } 175 } 176 177 if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) 178 { 179 $frameurls = $this->_frameurls; 180 $this->_frameurls = array(); 181 182 while(list(,$frameurl) = each($frameurls)) 183 { 184 if($this->_framedepth < $this->maxframes) 185 { 186 $this->fetch($frameurl); 187 $this->_framedepth++; 188 } 189 else 190 break; 191 } 192 } 193 } 194 else 195 { 196 return false; 197 } 198 return true; 199 break; 200 case "https": 201 if(!$this->curl_path || (!is_executable($this->curl_path))) { 202 $this->error = "Bad curl ($this->curl_path), can't fetch HTTPS \n"; 203 return false; 204 } 205 $this->host = $URI_PARTS["host"]; 206 if(!empty($URI_PARTS["port"])) 207 $this->port = $URI_PARTS["port"]; 208 if($this->_isproxy) 209 { 210 // using proxy, send entire URI 211 $this->_httpsrequest($URI,$URI,$this->_httpmethod); 212 } 213 else 214 { 215 $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); 216 // no proxy, send only the path 217 $this->_httpsrequest($path, $URI, $this->_httpmethod); 218 } 219 220 if($this->_redirectaddr) 221 { 222 /* url was redirected, check if we've hit the max depth */ 223 if($this->maxredirs > $this->_redirectdepth) 224 { 225 // only follow redirect if it's on this site, or offsiteok is true 226 if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok) 227 { 228 /* follow the redirect */ 229 $this->_redirectdepth++; 230 $this->lastredirectaddr=$this->_redirectaddr; 231 $this->fetch($this->_redirectaddr); 232 } 233 } 234 } 235 236 if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) 237 { 238 $frameurls = $this->_frameurls; 239 $this->_frameurls = array(); 240 241 while(list(,$frameurl) = each($frameurls)) 242 { 243 if($this->_framedepth < $this->maxframes) 244 { 245 $this->fetch($frameurl); 246 $this->_framedepth++; 247 } 248 else 249 break; 250 } 251 } 252 return true; 253 break; 254 default: 255 // not a valid protocol 256 $this->error = 'Invalid protocol "'.$URI_PARTS["scheme"].'"\n'; 257 return false; 258 break; 259 } 260 return true; 261 } 262 263 264 265 /*======================================================================*\ 266 Private functions 267 \*======================================================================*/ 268 269 270 /*======================================================================*\ 271 Function: _striplinks 272 Purpose: strip the hyperlinks from an html document 273 Input: $document document to strip. 274 Output: $match an array of the links 275 \*======================================================================*/ 276 277 function _striplinks($document) 278 { 279 preg_match_all("'<\s*a\s+.*href\s*=\s* # find <a href= 280 ([\"\'])? # find single or double quote 281 (?(1) (.*?)\\1 | ([^\s\>]+)) # if quote found, match up to next matching 282 # quote, otherwise match up to next space 283 'isx",$document,$links); 284 285 286 // catenate the non-empty matches from the conditional subpattern 287 288 while(list($key,$val) = each($links[2])) 289 { 290 if(!empty($val)) 291 $match[] = $val; 292 } 293 294 while(list($key,$val) = each($links[3])) 295 { 296 if(!empty($val)) 297 $match[] = $val; 298 } 299 300 // return the links 301 return $match; 302 } 303 304 /*======================================================================*\ 305 Function: _stripform 306 Purpose: strip the form elements from an html document 307 Input: $document document to strip. 308 Output: $match an array of the links 309 \*======================================================================*/ 310 311 function _stripform($document) 312 { 313 preg_match_all("'<\/?(FORM|INPUT|SELECT|TEXTAREA|(OPTION))[^<>]*>(?(2)(.*(?=<\/?(option|select)[^<>]*>[\r\n]*)|(?=[\r\n]*))|(?=[\r\n]*))'Usi",$document,$elements); 314 315 // catenate the matches 316 $match = implode("\r\n",$elements[0]); 317 318 // return the links 319 return $match; 320 } 321 322 323 324 /*======================================================================*\ 325 Function: _striptext 326 Purpose: strip the text from an html document 327 Input: $document document to strip. 328 Output: $text the resulting text 329 \*======================================================================*/ 330 331 function _striptext($document) 332 { 333 334 // I didn't use preg eval (//e) since that is only available in PHP 4.0. 335 // so, list your entities one by one here. I included some of the 336 // more common ones. 337 338 $search = array("'<script[^>]*?>.*?</script>'si", // strip out javascript 339 "'<[\/\!]*?[^<>]*?>'si", // strip out html tags 340 "'([\r\n])[\s]+'", // strip out white space 341 "'&(quote|#34);'i", // replace html entities 342 "'&(amp|#38);'i", 343 "'&(lt|#60);'i", 344 "'&(gt|#62);'i", 345 "'&(nbsp|#160);'i", 346 "'&(iexcl|#161);'i", 347 "'&(cent|#162);'i", 348 "'&(pound|#163);'i", 349 "'&(copy|#169);'i" 350 ); 351 $replace = array( "", 352 "", 353 "\\1", 354 "\"", 355 "&", 356 "<", 357 ">", 358 " ", 359 chr(161), 360 chr(162), 361 chr(163), 362 chr(169)); 363 364 $text = preg_replace($search,$replace,$document); 365 366 return $text; 367 } 368 369 /*======================================================================*\ 370 Function: _expandlinks 371 Purpose: expand each link into a fully qualified URL 372 Input: $links the links to qualify 373 $URI the full URI to get the base from 374 Output: $expandedLinks the expanded links 375 \*======================================================================*/ 376 377 function _expandlinks($links,$URI) 378 { 379 380 preg_match("/^[^\?]+/",$URI,$match); 381 382 $match = preg_replace("|/[^\/\.]+\.[^\/\.]+$|","",$match[0]); 383 384 $search = array( "|^http://".preg_quote($this->host)."|i", 385 "|^(?!http://)(\/)?(?!mailto:)|i", 386 "|/\./|", 387 "|/[^\/]+/\.\./|" 388 ); 389 390 $replace = array( "", 391 $match."/", 392 "/", 393 "/" 394 ); 395 396 $expandedLinks = preg_replace($search,$replace,$links); 397 398 return $expandedLinks; 399 } 400 401 /*======================================================================*\ 402 Function: _httprequest 403 Purpose: go get the http data from the server 404 Input: $url the url to fetch 405 $fp the current open file pointer 406 $URI the full URI 407 $body body contents to send if any (POST) 408 Output: 409 \*======================================================================*/ 410 411 function _httprequest($url,$fp,$URI,$http_method,$content_type="",$body="") 412 { 413 if($this->passcookies && $this->_redirectaddr) 414 $this->setcookies(); 415 416 $URI_PARTS = parse_url($URI); 417 if(empty($url)) 418 $url = "/"; 419 $headers = $http_method." ".$url." ".$this->_httpversion."\r\n"; 420 if(!empty($this->agent)) 421 $headers .= "User-Agent: ".$this->agent."\r\n"; 422 if(!empty($this->host) && !isset($this->rawheaders['Host'])) 423 $headers .= "Host: ".$this->host."\r\n"; 424 if(!empty($this->accept)) 425 $headers .= "Accept: ".$this->accept."\r\n"; 426 427 if($this->use_gzip) { 428 // make sure PHP was built with --with-zlib 429 // and we can handle gzipp'ed data 430 if ( function_exists(gzinflate) ) { 431 $headers .= "Accept-encoding: gzip\r\n"; 432 } 433 else { 434 trigger_error( 435 "use_gzip is on, but PHP was built without zlib support.". 436 " Requesting file(s) without gzip encoding.", 437 E_USER_NOTICE); 438 } 439 } 440 441 if(!empty($this->referer)) 442 $headers .= "Referer: ".$this->referer."\r\n"; 443 if(!empty($this->cookies)) 444 { 445 if(!is_array($this->cookies)) 446 $this->cookies = (array)$this->cookies; 447 448 reset($this->cookies); 449 if ( count($this->cookies) > 0 ) { 450 $cookie_headers .= 'Cookie: '; 451 foreach ( $this->cookies as $cookieKey => $cookieVal ) { 452 $cookie_headers .= $cookieKey."=".urlencode($cookieVal)."; "; 453 } 454 $headers .= substr($cookie_headers,0,-2) . "\r\n"; 455 } 456 } 457 if(!empty($this->rawheaders)) 458 { 459 if(!is_array($this->rawheaders)) 460 $this->rawheaders = (array)$this->rawheaders; 461 while(list($headerKey,$headerVal) = each($this->rawheaders)) 462 $headers .= $headerKey.": ".$headerVal."\r\n"; 463 } 464 if(!empty($content_type)) { 465 $headers .= "Content-type: $content_type"; 466 if ($content_type == "multipart/form-data") 467 $headers .= "; boundary=".$this->_mime_boundary; 468 $headers .= "\r\n"; 469 } 470 if(!empty($body)) 471 $headers .= "Content-length: ".strlen($body)."\r\n"; 472 if(!empty($this->user) || !empty($this->pass)) 473 $headers .= "Authorization: BASIC ".base64_encode($this->user.":".$this->pass)."\r\n"; 474 475 $headers .= "\r\n"; 476 477 // set the read timeout if needed 478 if ($this->read_timeout > 0) 479 socket_set_timeout($fp, $this->read_timeout); 480 $this->timed_out = false; 481 482 fwrite($fp,$headers.$body,strlen($headers.$body)); 483 484 $this->_redirectaddr = false; 485 unset($this->headers); 486 487 // content was returned gzip encoded? 488 $is_gzipped = false; 489 490 while($currentHeader = fgets($fp,$this->_maxlinelen)) 491 { 492 if ($this->read_timeout > 0 && $this->_check_timeout($fp)) 493 { 494 $this->status=-100; 495 return false; 496 } 497 498 // if($currentHeader == "\r\n") 499 if(preg_match("/^\r?\n$/", $currentHeader) ) 500 break; 501 502 // if a header begins with Location: or URI:, set the redirect 503 if(preg_match("/^(Location:|URI:)/i",$currentHeader)) 504 { 505 // get URL portion of the redirect 506 preg_match("/^(Location:|URI:)\s+(.*)/",chop($currentHeader),$matches); 507 // look for :// in the Location header to see if hostname is included 508 if(!preg_match("|\:\/\/|",$matches[2])) 509 { 510 // no host in the path, so prepend 511 $this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host.":".$this->port; 512 // eliminate double slash 513 if(!preg_match("|^/|",$matches[2])) 514 $this->_redirectaddr .= "/".$matches[2]; 515 else 516 $this->_redirectaddr .= $matches[2]; 517 } 518 else 519 $this->_redirectaddr = $matches[2]; 520 } 521 522 if(preg_match("|^HTTP/|",$currentHeader)) 523 { 524 if(preg_match("|^HTTP/[^\s]*\s(.*?)\s|",$currentHeader, $status)) 525 { 526 $this->status= $status[1]; 527 } 528 $this->response_code = $currentHeader; 529 } 530 531 if (preg_match("/Content-Encoding: gzip/", $currentHeader) ) { 532 $is_gzipped = true; 533 } 534 535 $this->headers[] = $currentHeader; 536 } 537 538 # $results = fread($fp, $this->maxlength); 539 $results = ""; 540 while ( $data = fread($fp, $this->maxlength) ) { 541 $results .= $data; 542 if ( 543 strlen($results) > $this->maxlength ) { 544 break; 545 } 546 } 547 548 // gunzip 549 if ( $is_gzipped ) { 550 // per http://www.php.net/manual/en/function.gzencode.php 551 $results = substr($results, 10); 552 $results = gzinflate($results); 553 } 554 555 if ($this->read_timeout > 0 && $this->_check_timeout($fp)) 556 { 557 $this->status=-100; 558 return false; 559 } 560 561 // check if there is a a redirect meta tag 562 563 if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]+URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$results,$match)) 564 { 565 $this->_redirectaddr = $this->_expandlinks($match[1],$URI); 566 } 567 568 // have we hit our frame depth and is there frame src to fetch? 569 if(($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i",$results,$match)) 570 { 571 $this->results[] = $results; 572 for($x=0; $x<count($match[1]); $x++) 573 $this->_frameurls[] = $this->_expandlinks($match[1][$x],$URI_PARTS["scheme"]."://".$this->host); 574 } 575 // have we already fetched framed content? 576 elseif(is_array($this->results)) 577 $this->results[] = $results; 578 // no framed content 579 else 580 $this->results = $results; 581 582 return true; 583 } 584 585 /*======================================================================*\ 586 Function: _httpsrequest 587 Purpose: go get the https data from the server using curl 588 Input: $url the url to fetch 589 $URI the full URI 590 $body body contents to send if any (POST) 591 Output: 592 \*======================================================================*/ 593 594 function _httpsrequest($url,$URI,$http_method,$content_type="",$body="") 595 { 596 if($this->passcookies && $this->_redirectaddr) 597 $this->setcookies(); 598 599 $headers = array(); 600 601 $URI_PARTS = parse_url($URI); 602 if(empty($url)) 603 $url = "/"; 604 // GET ... header not needed for curl 605 //$headers[] = $http_method." ".$url." ".$this->_httpversion; 606 if(!empty($this->agent)) 607 $headers[] = "User-Agent: ".$this->agent; 608 if(!empty($this->host)) 609 $headers[] = "Host: ".$this->host; 610 if(!empty($this->accept)) 611 $headers[] = "Accept: ".$this->accept; 612 if(!empty($this->referer)) 613 $headers[] = "Referer: ".$this->referer; 614 if(!empty($this->cookies)) 615 { 616 if(!is_array($this->cookies)) 617 $this->cookies = (array)$this->cookies; 618 619 reset($this->cookies); 620 if ( count($this->cookies) > 0 ) { 621 $cookie_str = 'Cookie: '; 622 foreach ( $this->cookies as $cookieKey => $cookieVal ) { 623 $cookie_str .= $cookieKey."=".urlencode($cookieVal)."; "; 624 } 625 $headers[] = substr($cookie_str,0,-2); 626 } 627 } 628 if(!empty($this->rawheaders)) 629 { 630 if(!is_array($this->rawheaders)) 631 $this->rawheaders = (array)$this->rawheaders; 632 while(list($headerKey,$headerVal) = each($this->rawheaders)) 633 $headers[] = $headerKey.": ".$headerVal; 634 } 635 if(!empty($content_type)) { 636 if ($content_type == "multipart/form-data") 637 $headers[] = "Content-type: $content_type; boundary=".$this->_mime_boundary; 638 else 639 $headers[] = "Content-type: $content_type"; 640 } 641 if(!empty($body)) 642 $headers[] = "Content-length: ".strlen($body); 643 if(!empty($this->user) || !empty($this->pass)) 644 $headers[] = "Authorization: BASIC ".base64_encode($this->user.":".$this->pass); 645 646 for($curr_header = 0; $curr_header < count($headers); $curr_header++) 647 $cmdline_params .= " -H \"".$headers[$curr_header]."\""; 648 649 if(!empty($body)) 650 $cmdline_params .= " -d \"$body\""; 651 652 if($this->read_timeout > 0) 653 $cmdline_params .= " -m ".$this->read_timeout; 654 655 $headerfile = uniqid(time()); 656 657 # accept self-signed certs 658 $cmdline_params .= " -k"; 659 exec($this->curl_path." -D \"/tmp/$headerfile\"".$cmdline_params." ".$URI,$results,$return); 660 661 if($return) 662 { 663 $this->error = "Error: cURL could not retrieve the document, error $return."; 664 return false; 665 } 666 667 668 $results = implode("\r\n",$results); 669 670 $result_headers = file("/tmp/$headerfile"); 671 672 $this->_redirectaddr = false; 673 unset($this->headers); 674 675 for($currentHeader = 0; $currentHeader < count($result_headers); $currentHeader++) 676 { 677 678 // if a header begins with Location: or URI:, set the redirect 679 if(preg_match("/^(Location: |URI: )/i",$result_headers[$currentHeader])) 680 { 681 // get URL portion of the redirect 682 preg_match("/^(Location: |URI:)(.*)/",chop($result_headers[$currentHeader]),$matches); 683 // look for :// in the Location header to see if hostname is included 684 if(!preg_match("|\:\/\/|",$matches[2])) 685 { 686 // no host in the path, so prepend 687 $this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host.":".$this->port; 688 // eliminate double slash 689 if(!preg_match("|^/|",$matches[2])) 690 $this->_redirectaddr .= "/".$matches[2]; 691 else 692 $this->_redirectaddr .= $matches[2]; 693 } 694 else 695 $this->_redirectaddr = $matches[2]; 696 } 697 698 if(preg_match("|^HTTP/|",$result_headers[$currentHeader])) 699 { 700 $this->response_code = $result_headers[$currentHeader]; 701 if(preg_match("|^HTTP/[^\s]*\s(.*?)\s|",$this->response_code, $match)) 702 { 703 $this->status= $match[1]; 704 } 705 } 706 $this->headers[] = $result_headers[$currentHeader]; 707 } 708 709 // check if there is a a redirect meta tag 710 711 if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]+URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$results,$match)) 712 { 713 $this->_redirectaddr = $this->_expandlinks($match[1],$URI); 714 } 715 716 // have we hit our frame depth and is there frame src to fetch? 717 if(($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i",$results,$match)) 718 { 719 $this->results[] = $results; 720 for($x=0; $x<count($match[1]); $x++) 721 $this->_frameurls[] = $this->_expandlinks($match[1][$x],$URI_PARTS["scheme"]."://".$this->host); 722 } 723 // have we already fetched framed content? 724 elseif(is_array($this->results)) 725 $this->results[] = $results; 726 // no framed content 727 else 728 $this->results = $results; 729 730 unlink("/tmp/$headerfile"); 731 732 return true; 733 } 734 735 /*======================================================================*\ 736 Function: setcookies() 737 Purpose: set cookies for a redirection 738 \*======================================================================*/ 739 740 function setcookies() 741 { 742 for($x=0; $x<count($this->headers); $x++) 743 { 744 if(preg_match("/^set-cookie:[\s]+([^=]+)=([^;]+)/i", $this->headers[$x],$match)) 745 $this->cookies[$match[1]] = $match[2]; 746 } 747 } 748 749 750 /*======================================================================*\ 751 Function: _check_timeout 752 Purpose: checks whether timeout has occurred 753 Input: $fp file pointer 754 \*======================================================================*/ 755 756 function _check_timeout($fp) 757 { 758 if ($this->read_timeout > 0) { 759 $fp_status = socket_get_status($fp); 760 if ($fp_status["timed_out"]) { 761 $this->timed_out = true; 762 return true; 763 } 764 } 765 return false; 766 } 767 768 /*======================================================================*\ 769 Function: _connect 770 Purpose: make a socket connection 771 Input: $fp file pointer 772 \*======================================================================*/ 773 774 function _connect(&$fp) 775 { 776 if(!empty($this->proxy_host) && !empty($this->proxy_port)) 777 { 778 $this->_isproxy = true; 779 $host = $this->proxy_host; 780 $port = $this->proxy_port; 781 } 782 else 783 { 784 $host = $this->host; 785 $port = $this->port; 786 } 787 788 $this->status = 0; 789 790 if($fp = fsockopen( 791 $host, 792 $port, 793 $errno, 794 $errstr, 795 $this->_fp_timeout 796 )) 797 { 798 // socket connection succeeded 799 800 return true; 801 } 802 else 803 { 804 // socket connection failed 805 $this->status = $errno; 806 switch($errno) 807 { 808 case -3: 809 $this->error="socket creation failed (-3)"; 810 case -4: 811 $this->error="dns lookup failure (-4)"; 812 case -5: 813 $this->error="connection refused or timed out (-5)"; 814 default: 815 $this->error="connection failed (".$errno.")"; 816 } 817 return false; 818 } 819 } 820 /*======================================================================*\ 821 Function: _disconnect 822 Purpose: disconnect a socket connection 823 Input: $fp file pointer 824 \*======================================================================*/ 825 826 function _disconnect($fp) 827 { 828 return(fclose($fp)); 829 } 830 831 832 /*======================================================================*\ 833 Function: _prepare_post_body 834 Purpose: Prepare post body according to encoding type 835 Input: $formvars - form variables 836 $formfiles - form upload files 837 Output: post body 838 \*======================================================================*/ 839 840 function _prepare_post_body($formvars, $formfiles) 841 { 842 settype($formvars, "array"); 843 settype($formfiles, "array"); 844 845 if (count($formvars) == 0 && count($formfiles) == 0) 846 return; 847 848 switch ($this->_submit_type) { 849 case "application/x-www-form-urlencoded": 850 reset($formvars); 851 while(list($key,$val) = each($formvars)) { 852 if (is_array($val) || is_object($val)) { 853 while (list($cur_key, $cur_val) = each($val)) { 854 $postdata .= urlencode($key)."[]=".urlencode($cur_val)."&"; 855 } 856 } else 857 $postdata .= urlencode($key)."=".urlencode($val)."&"; 858 } 859 break; 860 861 case "multipart/form-data": 862 $this->_mime_boundary = "Snoopy".md5(uniqid(microtime())); 863 864 reset($formvars); 865 while(list($key,$val) = each($formvars)) { 866 if (is_array($val) || is_object($val)) { 867 while (list($cur_key, $cur_val) = each($val)) { 868 $postdata .= "--".$this->_mime_boundary."\r\n"; 869 $postdata .= "Content-Disposition: form-data; name=\"$key\[\]\"\r\n\r\n"; 870 $postdata .= "$cur_val\r\n"; 871 } 872 } else { 873 $postdata .= "--".$this->_mime_boundary."\r\n"; 874 $postdata .= "Content-Disposition: form-data; name=\"$key\"\r\n\r\n"; 875 $postdata .= "$val\r\n"; 876 } 877 } 878 879 reset($formfiles); 880 while (list($field_name, $file_names) = each($formfiles)) { 881 settype($file_names, "array"); 882 while (list(, $file_name) = each($file_names)) { 883 if (!is_readable($file_name)) continue; 884 885 $fp = fopen($file_name, "r"); 886 $file_content = fread($fp, filesize($file_name)); 887 fclose($fp); 888 $base_name = basename($file_name); 889 890 $postdata .= "--".$this->_mime_boundary."\r\n"; 891 $postdata .= "Content-Disposition: form-data; name=\"$field_name\"; filename=\"$base_name\"\r\n\r\n"; 892 $postdata .= "$file_content\r\n"; 893 } 894 } 895 $postdata .= "--".$this->_mime_boundary."--\r\n"; 896 break; 897 } 898 899 return $postdata; 900 } 901 } 902 903 ?>
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| Généré le : Mon Nov 26 12:29:37 2007 | par Balluche grâce à PHPXref 0.7 |
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