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1 <?php 2 3 /** 4 * Deprecated. Use WP_HTTP (http.php) instead. 5 */ 6 _deprecated_file( basename( __FILE__ ), '3.0.0', WPINC . '/http.php' ); 7 8 if ( ! class_exists( 'Snoopy', false ) ) : 9 /************************************************* 10 11 Snoopy - the PHP net client 12 Author: Monte Ohrt <monte@ispi.net> 13 Copyright (c): 1999-2008 New Digital Group, all rights reserved 14 Version: 1.2.4 15 16 * This library is free software; you can redistribute it and/or 17 * modify it under the terms of the GNU Lesser General Public 18 * License as published by the Free Software Foundation; either 19 * version 2.1 of the License, or (at your option) any later version. 20 * 21 * This library is distributed in the hope that it will be useful, 22 * but WITHOUT ANY WARRANTY; without even the implied warranty of 23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 24 * Lesser General Public License for more details. 25 * 26 * You should have received a copy of the GNU Lesser General Public 27 * License along with this library; if not, write to the Free Software 28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 29 30 You may contact the author of Snoopy by e-mail at: 31 monte@ohrt.com 32 33 The latest version of Snoopy can be obtained from: 34 http://snoopy.sourceforge.net/ 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 $proxy_user = ""; // proxy user to use 49 var $proxy_pass = ""; // proxy password to use 50 51 var $agent = "Snoopy v1.2.4"; // agent we masquerade as 52 var $referer = ""; // referer info to pass 53 var $cookies = array(); // array of cookies to pass 54 // $cookies["username"]="joe"; 55 var $rawheaders = array(); // array of raw headers to send 56 // $rawheaders["Content-type"]="text/html"; 57 58 var $maxredirs = 5; // http redirection depth maximum. 0 = disallow 59 var $lastredirectaddr = ""; // contains address of last redirected address 60 var $offsiteok = true; // allows redirection off-site 61 var $maxframes = 0; // frame content depth maximum. 0 = disallow 62 var $expandlinks = true; // expand links to fully qualified URLs. 63 // this only applies to fetchlinks() 64 // submitlinks(), and submittext() 65 var $passcookies = true; // pass set cookies back through redirects 66 // NOTE: this currently does not respect 67 // dates, domains or paths. 68 69 var $user = ""; // user for http authentication 70 var $pass = ""; // password for http authentication 71 72 // http accept types 73 var $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*"; 74 75 var $results = ""; // where the content is put 76 77 var $error = ""; // error messages sent here 78 var $response_code = ""; // response code returned from server 79 var $headers = array(); // headers returned from server sent here 80 var $maxlength = 500000; // max return data length (body) 81 var $read_timeout = 0; // timeout on read operations, in seconds 82 // supported only since PHP 4 Beta 4 83 // set to 0 to disallow timeouts 84 var $timed_out = false; // if a read operation timed out 85 var $status = 0; // http request status 86 87 var $temp_dir = "/tmp"; // temporary directory that the webserver 88 // has permission to write to. 89 // under Windows, this should be C:\temp 90 91 var $curl_path = "/usr/local/bin/curl"; 92 // Snoopy will use cURL for fetching 93 // SSL content if a full system path to 94 // the cURL binary is supplied here. 95 // set to false if you do not have 96 // cURL installed. See http://curl.haxx.se 97 // for details on installing cURL. 98 // Snoopy does *not* use the cURL 99 // library functions built into php, 100 // as these functions are not stable 101 // as of this Snoopy release. 102 103 /**** Private variables ****/ 104 105 var $_maxlinelen = 4096; // max line length (headers) 106 107 var $_httpmethod = "GET"; // default http request method 108 var $_httpversion = "HTTP/1.0"; // default http request version 109 var $_submit_method = "POST"; // default submit method 110 var $_submit_type = "application/x-www-form-urlencoded"; // default submit type 111 var $_mime_boundary = ""; // MIME boundary for multipart/form-data submit type 112 var $_redirectaddr = false; // will be set if page fetched is a redirect 113 var $_redirectdepth = 0; // increments on an http redirect 114 var $_frameurls = array(); // frame src urls 115 var $_framedepth = 0; // increments on frame depth 116 117 var $_isproxy = false; // set if using a proxy server 118 var $_fp_timeout = 30; // timeout for socket connection 119 120 /*======================================================================*\ 121 Function: fetch 122 Purpose: fetch the contents of a web page 123 (and possibly other protocols in the 124 future like ftp, nntp, gopher, etc.) 125 Input: $URI the location of the page to fetch 126 Output: $this->results the output text from the fetch 127 \*======================================================================*/ 128 129 function fetch($URI) 130 { 131 132 //preg_match("|^([^:]+)://([^:/]+)(:[\d]+)*(.*)|",$URI,$URI_PARTS); 133 $URI_PARTS = parse_url($URI); 134 if (!empty($URI_PARTS["user"])) 135 $this->user = $URI_PARTS["user"]; 136 if (!empty($URI_PARTS["pass"])) 137 $this->pass = $URI_PARTS["pass"]; 138 if (empty($URI_PARTS["query"])) 139 $URI_PARTS["query"] = ''; 140 if (empty($URI_PARTS["path"])) 141 $URI_PARTS["path"] = ''; 142 143 switch(strtolower($URI_PARTS["scheme"])) 144 { 145 case "http": 146 $this->host = $URI_PARTS["host"]; 147 if(!empty($URI_PARTS["port"])) 148 $this->port = $URI_PARTS["port"]; 149 if($this->_connect($fp)) 150 { 151 if($this->_isproxy) 152 { 153 // using proxy, send entire URI 154 $this->_httprequest($URI,$fp,$URI,$this->_httpmethod); 155 } 156 else 157 { 158 $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); 159 // no proxy, send only the path 160 $this->_httprequest($path, $fp, $URI, $this->_httpmethod); 161 } 162 163 $this->_disconnect($fp); 164 165 if($this->_redirectaddr) 166 { 167 /* url was redirected, check if we've hit the max depth */ 168 if($this->maxredirs > $this->_redirectdepth) 169 { 170 // only follow redirect if it's on this site, or offsiteok is true 171 if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok) 172 { 173 /* follow the redirect */ 174 $this->_redirectdepth++; 175 $this->lastredirectaddr=$this->_redirectaddr; 176 $this->fetch($this->_redirectaddr); 177 } 178 } 179 } 180 181 if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) 182 { 183 $frameurls = $this->_frameurls; 184 $this->_frameurls = array(); 185 186 foreach ( $frameurls as $frameurl ) 187 { 188 if($this->_framedepth < $this->maxframes) 189 { 190 $this->fetch($frameurl); 191 $this->_framedepth++; 192 } 193 else 194 break; 195 } 196 } 197 } 198 else 199 { 200 return false; 201 } 202 return true; 203 break; 204 case "https": 205 if(!$this->curl_path) 206 return false; 207 if(function_exists("is_executable")) 208 if (!is_executable($this->curl_path)) 209 return false; 210 $this->host = $URI_PARTS["host"]; 211 if(!empty($URI_PARTS["port"])) 212 $this->port = $URI_PARTS["port"]; 213 if($this->_isproxy) 214 { 215 // using proxy, send entire URI 216 $this->_httpsrequest($URI,$URI,$this->_httpmethod); 217 } 218 else 219 { 220 $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); 221 // no proxy, send only the path 222 $this->_httpsrequest($path, $URI, $this->_httpmethod); 223 } 224 225 if($this->_redirectaddr) 226 { 227 /* url was redirected, check if we've hit the max depth */ 228 if($this->maxredirs > $this->_redirectdepth) 229 { 230 // only follow redirect if it's on this site, or offsiteok is true 231 if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok) 232 { 233 /* follow the redirect */ 234 $this->_redirectdepth++; 235 $this->lastredirectaddr=$this->_redirectaddr; 236 $this->fetch($this->_redirectaddr); 237 } 238 } 239 } 240 241 if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) 242 { 243 $frameurls = $this->_frameurls; 244 $this->_frameurls = array(); 245 246 foreach ( $frameurls as $frameurl ) 247 { 248 if($this->_framedepth < $this->maxframes) 249 { 250 $this->fetch($frameurl); 251 $this->_framedepth++; 252 } 253 else 254 break; 255 } 256 } 257 return true; 258 break; 259 default: 260 // not a valid protocol 261 $this->error = 'Invalid protocol "'.$URI_PARTS["scheme"].'"\n'; 262 return false; 263 break; 264 } 265 return true; 266 } 267 268 /*======================================================================*\ 269 Function: submit 270 Purpose: submit an http form 271 Input: $URI the location to post the data 272 $formvars the formvars to use. 273 format: $formvars["var"] = "val"; 274 $formfiles an array of files to submit 275 format: $formfiles["var"] = "/dir/filename.ext"; 276 Output: $this->results the text output from the post 277 \*======================================================================*/ 278 279 function submit($URI, $formvars="", $formfiles="") 280 { 281 unset($postdata); 282 283 $postdata = $this->_prepare_post_body($formvars, $formfiles); 284 285 $URI_PARTS = parse_url($URI); 286 if (!empty($URI_PARTS["user"])) 287 $this->user = $URI_PARTS["user"]; 288 if (!empty($URI_PARTS["pass"])) 289 $this->pass = $URI_PARTS["pass"]; 290 if (empty($URI_PARTS["query"])) 291 $URI_PARTS["query"] = ''; 292 if (empty($URI_PARTS["path"])) 293 $URI_PARTS["path"] = ''; 294 295 switch(strtolower($URI_PARTS["scheme"])) 296 { 297 case "http": 298 $this->host = $URI_PARTS["host"]; 299 if(!empty($URI_PARTS["port"])) 300 $this->port = $URI_PARTS["port"]; 301 if($this->_connect($fp)) 302 { 303 if($this->_isproxy) 304 { 305 // using proxy, send entire URI 306 $this->_httprequest($URI,$fp,$URI,$this->_submit_method,$this->_submit_type,$postdata); 307 } 308 else 309 { 310 $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); 311 // no proxy, send only the path 312 $this->_httprequest($path, $fp, $URI, $this->_submit_method, $this->_submit_type, $postdata); 313 } 314 315 $this->_disconnect($fp); 316 317 if($this->_redirectaddr) 318 { 319 /* url was redirected, check if we've hit the max depth */ 320 if($this->maxredirs > $this->_redirectdepth) 321 { 322 if(!preg_match("|^".$URI_PARTS["scheme"]."://|", $this->_redirectaddr)) 323 $this->_redirectaddr = $this->_expandlinks($this->_redirectaddr,$URI_PARTS["scheme"]."://".$URI_PARTS["host"]); 324 325 // only follow redirect if it's on this site, or offsiteok is true 326 if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok) 327 { 328 /* follow the redirect */ 329 $this->_redirectdepth++; 330 $this->lastredirectaddr=$this->_redirectaddr; 331 if( strpos( $this->_redirectaddr, "?" ) > 0 ) 332 $this->fetch($this->_redirectaddr); // the redirect has changed the request method from post to get 333 else 334 $this->submit($this->_redirectaddr,$formvars, $formfiles); 335 } 336 } 337 } 338 339 if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) 340 { 341 $frameurls = $this->_frameurls; 342 $this->_frameurls = array(); 343 344 foreach ( $frameurls as $frameurl ) 345 { 346 if($this->_framedepth < $this->maxframes) 347 { 348 $this->fetch($frameurl); 349 $this->_framedepth++; 350 } 351 else 352 break; 353 } 354 } 355 356 } 357 else 358 { 359 return false; 360 } 361 return true; 362 break; 363 case "https": 364 if(!$this->curl_path) 365 return false; 366 if(function_exists("is_executable")) 367 if (!is_executable($this->curl_path)) 368 return false; 369 $this->host = $URI_PARTS["host"]; 370 if(!empty($URI_PARTS["port"])) 371 $this->port = $URI_PARTS["port"]; 372 if($this->_isproxy) 373 { 374 // using proxy, send entire URI 375 $this->_httpsrequest($URI, $URI, $this->_submit_method, $this->_submit_type, $postdata); 376 } 377 else 378 { 379 $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); 380 // no proxy, send only the path 381 $this->_httpsrequest($path, $URI, $this->_submit_method, $this->_submit_type, $postdata); 382 } 383 384 if($this->_redirectaddr) 385 { 386 /* url was redirected, check if we've hit the max depth */ 387 if($this->maxredirs > $this->_redirectdepth) 388 { 389 if(!preg_match("|^".$URI_PARTS["scheme"]."://|", $this->_redirectaddr)) 390 $this->_redirectaddr = $this->_expandlinks($this->_redirectaddr,$URI_PARTS["scheme"]."://".$URI_PARTS["host"]); 391 392 // only follow redirect if it's on this site, or offsiteok is true 393 if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok) 394 { 395 /* follow the redirect */ 396 $this->_redirectdepth++; 397 $this->lastredirectaddr=$this->_redirectaddr; 398 if( strpos( $this->_redirectaddr, "?" ) > 0 ) 399 $this->fetch($this->_redirectaddr); // the redirect has changed the request method from post to get 400 else 401 $this->submit($this->_redirectaddr,$formvars, $formfiles); 402 } 403 } 404 } 405 406 if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) 407 { 408 $frameurls = $this->_frameurls; 409 $this->_frameurls = array(); 410 411 foreach ( $frameurls as $frameurl ) 412 { 413 if($this->_framedepth < $this->maxframes) 414 { 415 $this->fetch($frameurl); 416 $this->_framedepth++; 417 } 418 else 419 break; 420 } 421 } 422 return true; 423 break; 424 425 default: 426 // not a valid protocol 427 $this->error = 'Invalid protocol "'.$URI_PARTS["scheme"].'"\n'; 428 return false; 429 break; 430 } 431 return true; 432 } 433 434 /*======================================================================*\ 435 Function: fetchlinks 436 Purpose: fetch the links from a web page 437 Input: $URI where you are fetching from 438 Output: $this->results an array of the URLs 439 \*======================================================================*/ 440 441 function fetchlinks($URI) 442 { 443 if ($this->fetch($URI)) 444 { 445 if($this->lastredirectaddr) 446 $URI = $this->lastredirectaddr; 447 if(is_array($this->results)) 448 { 449 for($x=0;$x<count($this->results);$x++) 450 $this->results[$x] = $this->_striplinks($this->results[$x]); 451 } 452 else 453 $this->results = $this->_striplinks($this->results); 454 455 if($this->expandlinks) 456 $this->results = $this->_expandlinks($this->results, $URI); 457 return true; 458 } 459 else 460 return false; 461 } 462 463 /*======================================================================*\ 464 Function: fetchform 465 Purpose: fetch the form elements from a web page 466 Input: $URI where you are fetching from 467 Output: $this->results the resulting html form 468 \*======================================================================*/ 469 470 function fetchform($URI) 471 { 472 473 if ($this->fetch($URI)) 474 { 475 476 if(is_array($this->results)) 477 { 478 for($x=0;$x<count($this->results);$x++) 479 $this->results[$x] = $this->_stripform($this->results[$x]); 480 } 481 else 482 $this->results = $this->_stripform($this->results); 483 484 return true; 485 } 486 else 487 return false; 488 } 489 490 491 /*======================================================================*\ 492 Function: fetchtext 493 Purpose: fetch the text from a web page, stripping the links 494 Input: $URI where you are fetching from 495 Output: $this->results the text from the web page 496 \*======================================================================*/ 497 498 function fetchtext($URI) 499 { 500 if($this->fetch($URI)) 501 { 502 if(is_array($this->results)) 503 { 504 for($x=0;$x<count($this->results);$x++) 505 $this->results[$x] = $this->_striptext($this->results[$x]); 506 } 507 else 508 $this->results = $this->_striptext($this->results); 509 return true; 510 } 511 else 512 return false; 513 } 514 515 /*======================================================================*\ 516 Function: submitlinks 517 Purpose: grab links from a form submission 518 Input: $URI where you are submitting from 519 Output: $this->results an array of the links from the post 520 \*======================================================================*/ 521 522 function submitlinks($URI, $formvars="", $formfiles="") 523 { 524 if($this->submit($URI,$formvars, $formfiles)) 525 { 526 if($this->lastredirectaddr) 527 $URI = $this->lastredirectaddr; 528 if(is_array($this->results)) 529 { 530 for($x=0;$x<count($this->results);$x++) 531 { 532 $this->results[$x] = $this->_striplinks($this->results[$x]); 533 if($this->expandlinks) 534 $this->results[$x] = $this->_expandlinks($this->results[$x],$URI); 535 } 536 } 537 else 538 { 539 $this->results = $this->_striplinks($this->results); 540 if($this->expandlinks) 541 $this->results = $this->_expandlinks($this->results,$URI); 542 } 543 return true; 544 } 545 else 546 return false; 547 } 548 549 /*======================================================================*\ 550 Function: submittext 551 Purpose: grab text from a form submission 552 Input: $URI where you are submitting from 553 Output: $this->results the text from the web page 554 \*======================================================================*/ 555 556 function submittext($URI, $formvars = "", $formfiles = "") 557 { 558 if($this->submit($URI,$formvars, $formfiles)) 559 { 560 if($this->lastredirectaddr) 561 $URI = $this->lastredirectaddr; 562 if(is_array($this->results)) 563 { 564 for($x=0;$x<count($this->results);$x++) 565 { 566 $this->results[$x] = $this->_striptext($this->results[$x]); 567 if($this->expandlinks) 568 $this->results[$x] = $this->_expandlinks($this->results[$x],$URI); 569 } 570 } 571 else 572 { 573 $this->results = $this->_striptext($this->results); 574 if($this->expandlinks) 575 $this->results = $this->_expandlinks($this->results,$URI); 576 } 577 return true; 578 } 579 else 580 return false; 581 } 582 583 584 585 /*======================================================================*\ 586 Function: set_submit_multipart 587 Purpose: Set the form submission content type to 588 multipart/form-data 589 \*======================================================================*/ 590 function set_submit_multipart() 591 { 592 $this->_submit_type = "multipart/form-data"; 593 } 594 595 596 /*======================================================================*\ 597 Function: set_submit_normal 598 Purpose: Set the form submission content type to 599 application/x-www-form-urlencoded 600 \*======================================================================*/ 601 function set_submit_normal() 602 { 603 $this->_submit_type = "application/x-www-form-urlencoded"; 604 } 605 606 607 608 609 /*======================================================================*\ 610 Private functions 611 \*======================================================================*/ 612 613 614 /*======================================================================*\ 615 Function: _striplinks 616 Purpose: strip the hyperlinks from an html document 617 Input: $document document to strip. 618 Output: $match an array of the links 619 \*======================================================================*/ 620 621 function _striplinks($document) 622 { 623 preg_match_all("'<\s*a\s.*?href\s*=\s* # find <a href= 624 ([\"\'])? # find single or double quote 625 (?(1) (.*?)\\1 | ([^\s\>]+)) # if quote found, match up to next matching 626 # quote, otherwise match up to next space 627 'isx",$document,$links); 628 629 630 // catenate the non-empty matches from the conditional subpattern 631 632 foreach ( $links[2] as $key => $val ) 633 { 634 if(!empty($val)) 635 $match[] = $val; 636 } 637 638 foreach ( $links[3] as $key => $val ) 639 { 640 if(!empty($val)) 641 $match[] = $val; 642 } 643 644 // return the links 645 return $match; 646 } 647 648 /*======================================================================*\ 649 Function: _stripform 650 Purpose: strip the form elements from an html document 651 Input: $document document to strip. 652 Output: $match an array of the links 653 \*======================================================================*/ 654 655 function _stripform($document) 656 { 657 preg_match_all("'<\/?(FORM|INPUT|SELECT|TEXTAREA|(OPTION))[^<>]*>(?(2)(.*(?=<\/?(option|select)[^<>]*>[\r\n]*)|(?=[\r\n]*))|(?=[\r\n]*))'Usi",$document,$elements); 658 659 // catenate the matches 660 $match = implode("\r\n",$elements[0]); 661 662 // return the links 663 return $match; 664 } 665 666 667 668 /*======================================================================*\ 669 Function: _striptext 670 Purpose: strip the text from an html document 671 Input: $document document to strip. 672 Output: $text the resulting text 673 \*======================================================================*/ 674 675 function _striptext($document) 676 { 677 678 // I didn't use preg eval (//e) since that is only available in PHP 4.0. 679 // so, list your entities one by one here. I included some of the 680 // more common ones. 681 682 $search = array("'<script[^>]*?>.*?</script>'si", // strip out javascript 683 "'<[\/\!]*?[^<>]*?>'si", // strip out html tags 684 "'([\r\n])[\s]+'", // strip out white space 685 "'&(quot|#34|#034|#x22);'i", // replace html entities 686 "'&(amp|#38|#038|#x26);'i", // added hexadecimal values 687 "'&(lt|#60|#060|#x3c);'i", 688 "'&(gt|#62|#062|#x3e);'i", 689 "'&(nbsp|#160|#xa0);'i", 690 "'&(iexcl|#161);'i", 691 "'&(cent|#162);'i", 692 "'&(pound|#163);'i", 693 "'&(copy|#169);'i", 694 "'&(reg|#174);'i", 695 "'&(deg|#176);'i", 696 "'&(#39|#039|#x27);'", 697 "'&(euro|#8364);'i", // europe 698 "'&a(uml|UML);'", // german 699 "'&o(uml|UML);'", 700 "'&u(uml|UML);'", 701 "'&A(uml|UML);'", 702 "'&O(uml|UML);'", 703 "'&U(uml|UML);'", 704 "'ß'i", 705 ); 706 $replace = array( "", 707 "", 708 "\\1", 709 "\"", 710 "&", 711 "<", 712 ">", 713 " ", 714 chr(161), 715 chr(162), 716 chr(163), 717 chr(169), 718 chr(174), 719 chr(176), 720 chr(39), 721 chr(128), 722 chr(0xE4), // ANSI ä 723 chr(0xF6), // ANSI ö 724 chr(0xFC), // ANSI ü 725 chr(0xC4), // ANSI Ä 726 chr(0xD6), // ANSI Ö 727 chr(0xDC), // ANSI Ü 728 chr(0xDF), // ANSI ß 729 ); 730 731 $text = preg_replace($search,$replace,$document); 732 733 return $text; 734 } 735 736 /*======================================================================*\ 737 Function: _expandlinks 738 Purpose: expand each link into a fully qualified URL 739 Input: $links the links to qualify 740 $URI the full URI to get the base from 741 Output: $expandedLinks the expanded links 742 \*======================================================================*/ 743 744 function _expandlinks($links,$URI) 745 { 746 747 preg_match("/^[^\?]+/",$URI,$match); 748 749 $match = preg_replace("|/[^\/\.]+\.[^\/\.]+$|","",$match[0]); 750 $match = preg_replace("|/$|","",$match); 751 $match_part = parse_url($match); 752 $match_root = 753 $match_part["scheme"]."://".$match_part["host"]; 754 755 $search = array( "|^http://".preg_quote($this->host)."|i", 756 "|^(\/)|i", 757 "|^(?!http://)(?!mailto:)|i", 758 "|/\./|", 759 "|/[^\/]+/\.\./|" 760 ); 761 762 $replace = array( "", 763 $match_root."/", 764 $match."/", 765 "/", 766 "/" 767 ); 768 769 $expandedLinks = preg_replace($search,$replace,$links); 770 771 return $expandedLinks; 772 } 773 774 /*======================================================================*\ 775 Function: _httprequest 776 Purpose: go get the http data from the server 777 Input: $url the url to fetch 778 $fp the current open file pointer 779 $URI the full URI 780 $body body contents to send if any (POST) 781 Output: 782 \*======================================================================*/ 783 784 function _httprequest($url,$fp,$URI,$http_method,$content_type="",$body="") 785 { 786 $cookie_headers = ''; 787 if($this->passcookies && $this->_redirectaddr) 788 $this->setcookies(); 789 790 $URI_PARTS = parse_url($URI); 791 if(empty($url)) 792 $url = "/"; 793 $headers = $http_method." ".$url." ".$this->_httpversion."\r\n"; 794 if(!empty($this->agent)) 795 $headers .= "User-Agent: ".$this->agent."\r\n"; 796 if(!empty($this->host) && !isset($this->rawheaders['Host'])) { 797 $headers .= "Host: ".$this->host; 798 if(!empty($this->port) && $this->port != 80) 799 $headers .= ":".$this->port; 800 $headers .= "\r\n"; 801 } 802 if(!empty($this->accept)) 803 $headers .= "Accept: ".$this->accept."\r\n"; 804 if(!empty($this->referer)) 805 $headers .= "Referer: ".$this->referer."\r\n"; 806 if(!empty($this->cookies)) 807 { 808 if(!is_array($this->cookies)) 809 $this->cookies = (array)$this->cookies; 810 811 reset($this->cookies); 812 if ( count($this->cookies) > 0 ) { 813 $cookie_headers .= 'Cookie: '; 814 foreach ( $this->cookies as $cookieKey => $cookieVal ) { 815 $cookie_headers .= $cookieKey."=".urlencode($cookieVal)."; "; 816 } 817 $headers .= substr($cookie_headers,0,-2) . "\r\n"; 818 } 819 } 820 if(!empty($this->rawheaders)) 821 { 822 if(!is_array($this->rawheaders)) 823 $this->rawheaders = (array)$this->rawheaders; 824 foreach ( $this->rawheaders as $headerKey => $headerVal ) 825 $headers .= $headerKey.": ".$headerVal."\r\n"; 826 } 827 if(!empty($content_type)) { 828 $headers .= "Content-type: $content_type"; 829 if ($content_type == "multipart/form-data") 830 $headers .= "; boundary=".$this->_mime_boundary; 831 $headers .= "\r\n"; 832 } 833 if(!empty($body)) 834 $headers .= "Content-length: ".strlen($body)."\r\n"; 835 if(!empty($this->user) || !empty($this->pass)) 836 $headers .= "Authorization: Basic ".base64_encode($this->user.":".$this->pass)."\r\n"; 837 838 //add proxy auth headers 839 if(!empty($this->proxy_user)) 840 $headers .= 'Proxy-Authorization: ' . 'Basic ' . base64_encode($this->proxy_user . ':' . $this->proxy_pass)."\r\n"; 841 842 843 $headers .= "\r\n"; 844 845 // set the read timeout if needed 846 if ($this->read_timeout > 0) 847 socket_set_timeout($fp, $this->read_timeout); 848 $this->timed_out = false; 849 850 fwrite($fp,$headers.$body,strlen($headers.$body)); 851 852 $this->_redirectaddr = false; 853 unset($this->headers); 854 855 while($currentHeader = fgets($fp,$this->_maxlinelen)) 856 { 857 if ($this->read_timeout > 0 && $this->_check_timeout($fp)) 858 { 859 $this->status=-100; 860 return false; 861 } 862 863 if($currentHeader == "\r\n") 864 break; 865 866 // if a header begins with Location: or URI:, set the redirect 867 if(preg_match("/^(Location:|URI:)/i",$currentHeader)) 868 { 869 // get URL portion of the redirect 870 preg_match("/^(Location:|URI:)[ ]+(.*)/i",chop($currentHeader),$matches); 871 // look for :// in the Location header to see if hostname is included 872 if(!preg_match("|\:\/\/|",$matches[2])) 873 { 874 // no host in the path, so prepend 875 $this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host.":".$this->port; 876 // eliminate double slash 877 if(!preg_match("|^/|",$matches[2])) 878 $this->_redirectaddr .= "/".$matches[2]; 879 else 880 $this->_redirectaddr .= $matches[2]; 881 } 882 else 883 $this->_redirectaddr = $matches[2]; 884 } 885 886 if(preg_match("|^HTTP/|",$currentHeader)) 887 { 888 if(preg_match("|^HTTP/[^\s]*\s(.*?)\s|",$currentHeader, $status)) 889 { 890 $this->status= $status[1]; 891 } 892 $this->response_code = $currentHeader; 893 } 894 895 $this->headers[] = $currentHeader; 896 } 897 898 $results = ''; 899 do { 900 $_data = fread($fp, $this->maxlength); 901 if (strlen($_data) == 0) { 902 break; 903 } 904 $results .= $_data; 905 } while(true); 906 907 if ($this->read_timeout > 0 && $this->_check_timeout($fp)) 908 { 909 $this->status=-100; 910 return false; 911 } 912 913 // check if there is a redirect meta tag 914 915 if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]*URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$results,$match)) 916 917 { 918 $this->_redirectaddr = $this->_expandlinks($match[1],$URI); 919 } 920 921 // have we hit our frame depth and is there frame src to fetch? 922 if(($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i",$results,$match)) 923 { 924 $this->results[] = $results; 925 for($x=0; $x<count($match[1]); $x++) 926 $this->_frameurls[] = $this->_expandlinks($match[1][$x],$URI_PARTS["scheme"]."://".$this->host); 927 } 928 // have we already fetched framed content? 929 elseif(is_array($this->results)) 930 $this->results[] = $results; 931 // no framed content 932 else 933 $this->results = $results; 934 935 return true; 936 } 937 938 /*======================================================================*\ 939 Function: _httpsrequest 940 Purpose: go get the https data from the server using curl 941 Input: $url the url to fetch 942 $URI the full URI 943 $body body contents to send if any (POST) 944 Output: 945 \*======================================================================*/ 946 947 function _httpsrequest($url,$URI,$http_method,$content_type="",$body="") 948 { 949 if($this->passcookies && $this->_redirectaddr) 950 $this->setcookies(); 951 952 $headers = array(); 953 954 $URI_PARTS = parse_url($URI); 955 if(empty($url)) 956 $url = "/"; 957 // GET ... header not needed for curl 958 //$headers[] = $http_method." ".$url." ".$this->_httpversion; 959 if(!empty($this->agent)) 960 $headers[] = "User-Agent: ".$this->agent; 961 if(!empty($this->host)) 962 if(!empty($this->port)) 963 $headers[] = "Host: ".$this->host.":".$this->port; 964 else 965 $headers[] = "Host: ".$this->host; 966 if(!empty($this->accept)) 967 $headers[] = "Accept: ".$this->accept; 968 if(!empty($this->referer)) 969 $headers[] = "Referer: ".$this->referer; 970 if(!empty($this->cookies)) 971 { 972 if(!is_array($this->cookies)) 973 $this->cookies = (array)$this->cookies; 974 975 reset($this->cookies); 976 if ( count($this->cookies) > 0 ) { 977 $cookie_str = 'Cookie: '; 978 foreach ( $this->cookies as $cookieKey => $cookieVal ) { 979 $cookie_str .= $cookieKey."=".urlencode($cookieVal)."; "; 980 } 981 $headers[] = substr($cookie_str,0,-2); 982 } 983 } 984 if(!empty($this->rawheaders)) 985 { 986 if(!is_array($this->rawheaders)) 987 $this->rawheaders = (array)$this->rawheaders; 988 foreach ( $this->rawheaders as $headerKey => $headerVal ) 989 $headers[] = $headerKey.": ".$headerVal; 990 } 991 if(!empty($content_type)) { 992 if ($content_type == "multipart/form-data") 993 $headers[] = "Content-type: $content_type; boundary=".$this->_mime_boundary; 994 else 995 $headers[] = "Content-type: $content_type"; 996 } 997 if(!empty($body)) 998 $headers[] = "Content-length: ".strlen($body); 999 if(!empty($this->user) || !empty($this->pass)) 1000 $headers[] = "Authorization: BASIC ".base64_encode($this->user.":".$this->pass); 1001 1002 $headerfile = tempnam( $this->temp_dir, "sno" ); 1003 $cmdline_params = '-k -D ' . escapeshellarg( $headerfile ); 1004 1005 foreach ( $headers as $header ) { 1006 $cmdline_params .= ' -H ' . escapeshellarg( $header ); 1007 } 1008 1009 if ( ! empty( $body ) ) { 1010 $cmdline_params .= ' -d ' . escapeshellarg( $body ); 1011 } 1012 1013 if ( $this->read_timeout > 0 ) { 1014 $cmdline_params .= ' -m ' . escapeshellarg( $this->read_timeout ); 1015 } 1016 1017 1018 exec( $this->curl_path . ' ' . $cmdline_params . ' ' . escapeshellarg( $URI ), $results, $return ); 1019 1020 if($return) 1021 { 1022 $this->error = "Error: cURL could not retrieve the document, error $return."; 1023 return false; 1024 } 1025 1026 1027 $results = implode("\r\n",$results); 1028 1029 $result_headers = file("$headerfile"); 1030 1031 $this->_redirectaddr = false; 1032 unset($this->headers); 1033 1034 for($currentHeader = 0; $currentHeader < count($result_headers); $currentHeader++) 1035 { 1036 1037 // if a header begins with Location: or URI:, set the redirect 1038 if(preg_match("/^(Location: |URI: )/i",$result_headers[$currentHeader])) 1039 { 1040 // get URL portion of the redirect 1041 preg_match("/^(Location: |URI:)\s+(.*)/",chop($result_headers[$currentHeader]),$matches); 1042 // look for :// in the Location header to see if hostname is included 1043 if(!preg_match("|\:\/\/|",$matches[2])) 1044 { 1045 // no host in the path, so prepend 1046 $this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host.":".$this->port; 1047 // eliminate double slash 1048 if(!preg_match("|^/|",$matches[2])) 1049 $this->_redirectaddr .= "/".$matches[2]; 1050 else 1051 $this->_redirectaddr .= $matches[2]; 1052 } 1053 else 1054 $this->_redirectaddr = $matches[2]; 1055 } 1056 1057 if(preg_match("|^HTTP/|",$result_headers[$currentHeader])) 1058 $this->response_code = $result_headers[$currentHeader]; 1059 1060 $this->headers[] = $result_headers[$currentHeader]; 1061 } 1062 1063 // check if there is a redirect meta tag 1064 1065 if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]*URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$results,$match)) 1066 { 1067 $this->_redirectaddr = $this->_expandlinks($match[1],$URI); 1068 } 1069 1070 // have we hit our frame depth and is there frame src to fetch? 1071 if(($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i",$results,$match)) 1072 { 1073 $this->results[] = $results; 1074 for($x=0; $x<count($match[1]); $x++) 1075 $this->_frameurls[] = $this->_expandlinks($match[1][$x],$URI_PARTS["scheme"]."://".$this->host); 1076 } 1077 // have we already fetched framed content? 1078 elseif(is_array($this->results)) 1079 $this->results[] = $results; 1080 // no framed content 1081 else 1082 $this->results = $results; 1083 1084 unlink("$headerfile"); 1085 1086 return true; 1087 } 1088 1089 /*======================================================================*\ 1090 Function: setcookies() 1091 Purpose: set cookies for a redirection 1092 \*======================================================================*/ 1093 1094 function setcookies() 1095 { 1096 for($x=0; $x<count($this->headers); $x++) 1097 { 1098 if(preg_match('/^set-cookie:[\s]+([^=]+)=([^;]+)/i', $this->headers[$x],$match)) 1099 $this->cookies[$match[1]] = urldecode($match[2]); 1100 } 1101 } 1102 1103 1104 /*======================================================================*\ 1105 Function: _check_timeout 1106 Purpose: checks whether timeout has occurred 1107 Input: $fp file pointer 1108 \*======================================================================*/ 1109 1110 function _check_timeout($fp) 1111 { 1112 if ($this->read_timeout > 0) { 1113 $fp_status = socket_get_status($fp); 1114 if ($fp_status["timed_out"]) { 1115 $this->timed_out = true; 1116 return true; 1117 } 1118 } 1119 return false; 1120 } 1121 1122 /*======================================================================*\ 1123 Function: _connect 1124 Purpose: make a socket connection 1125 Input: $fp file pointer 1126 \*======================================================================*/ 1127 1128 function _connect(&$fp) 1129 { 1130 if(!empty($this->proxy_host) && !empty($this->proxy_port)) 1131 { 1132 $this->_isproxy = true; 1133 1134 $host = $this->proxy_host; 1135 $port = $this->proxy_port; 1136 } 1137 else 1138 { 1139 $host = $this->host; 1140 $port = $this->port; 1141 } 1142 1143 $this->status = 0; 1144 1145 if($fp = fsockopen( 1146 $host, 1147 $port, 1148 $errno, 1149 $errstr, 1150 $this->_fp_timeout 1151 )) 1152 { 1153 // socket connection succeeded 1154 1155 return true; 1156 } 1157 else 1158 { 1159 // socket connection failed 1160 $this->status = $errno; 1161 switch($errno) 1162 { 1163 case -3: 1164 $this->error="socket creation failed (-3)"; 1165 case -4: 1166 $this->error="dns lookup failure (-4)"; 1167 case -5: 1168 $this->error="connection refused or timed out (-5)"; 1169 default: 1170 $this->error="connection failed (".$errno.")"; 1171 } 1172 return false; 1173 } 1174 } 1175 /*======================================================================*\ 1176 Function: _disconnect 1177 Purpose: disconnect a socket connection 1178 Input: $fp file pointer 1179 \*======================================================================*/ 1180 1181 function _disconnect($fp) 1182 { 1183 return(fclose($fp)); 1184 } 1185 1186 1187 /*======================================================================*\ 1188 Function: _prepare_post_body 1189 Purpose: Prepare post body according to encoding type 1190 Input: $formvars - form variables 1191 $formfiles - form upload files 1192 Output: post body 1193 \*======================================================================*/ 1194 1195 function _prepare_post_body($formvars, $formfiles) 1196 { 1197 settype($formvars, "array"); 1198 settype($formfiles, "array"); 1199 $postdata = ''; 1200 1201 if (count($formvars) == 0 && count($formfiles) == 0) 1202 return; 1203 1204 switch ($this->_submit_type) { 1205 case "application/x-www-form-urlencoded": 1206 reset($formvars); 1207 foreach ( $formvars as $key => $val ) { 1208 if (is_array($val) || is_object($val)) { 1209 foreach ( $val as $cur_key => $cur_val ) { 1210 $postdata .= urlencode($key)."[]=".urlencode($cur_val)."&"; 1211 } 1212 } else 1213 $postdata .= urlencode($key)."=".urlencode($val)."&"; 1214 } 1215 break; 1216 1217 case "multipart/form-data": 1218 $this->_mime_boundary = "Snoopy".md5(uniqid(microtime())); 1219 1220 reset($formvars); 1221 foreach ( $formvars as $key => $val ) { 1222 if (is_array($val) || is_object($val)) { 1223 foreach ( $val as $cur_key => $cur_val ) { 1224 $postdata .= "--".$this->_mime_boundary."\r\n"; 1225 $postdata .= "Content-Disposition: form-data; name=\"$key\[\]\"\r\n\r\n"; 1226 $postdata .= "$cur_val\r\n"; 1227 } 1228 } else { 1229 $postdata .= "--".$this->_mime_boundary."\r\n"; 1230 $postdata .= "Content-Disposition: form-data; name=\"$key\"\r\n\r\n"; 1231 $postdata .= "$val\r\n"; 1232 } 1233 } 1234 1235 reset($formfiles); 1236 foreach ( $formfiles as $field_name => $file_names ) { 1237 settype($file_names, "array"); 1238 foreach ( $file_names as $file_name ) { 1239 if (!is_readable($file_name)) continue; 1240 1241 $fp = fopen($file_name, "r"); 1242 $file_content = fread($fp, filesize($file_name)); 1243 fclose($fp); 1244 $base_name = basename($file_name); 1245 1246 $postdata .= "--".$this->_mime_boundary."\r\n"; 1247 $postdata .= "Content-Disposition: form-data; name=\"$field_name\"; filename=\"$base_name\"\r\n\r\n"; 1248 $postdata .= "$file_content\r\n"; 1249 } 1250 } 1251 $postdata .= "--".$this->_mime_boundary."--\r\n"; 1252 break; 1253 } 1254 1255 return $postdata; 1256 } 1257 } 1258 endif; 1259 ?>
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| Generated: Sun Dec 22 01:00:02 2024 | Cross-referenced by PHPXref 0.7.1 |