| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Deprecated. Use WP_HTTP (http.php, class-http.php) instead. |
| 5 | */ |
| 6 | _deprecated_file( basename( __FILE__ ), '3.0', WPINC . '/http.php' ); |
| 7 | |
| 8 | if ( !class_exists( 'Snoopy' ) ) : |
| 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 | $this->_frameurls = array(); |
| 185 | |
| 186 | while(list(,$frameurl) = each($frameurls)) |
| 187 | { |
| 188 | if($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 | $this->_frameurls = array(); |
| 245 | |
| 246 | while(list(,$frameurl) = each($frameurls)) |
| 247 | { |
| 248 | if($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 | $this->_frameurls = array(); |
| 343 | |
| 344 | while(list(,$frameurl) = each($frameurls)) |
| 345 | { |
| 346 | if($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 | $this->_frameurls = array(); |
| 410 | |
| 411 | while(list(,$frameurl) = each($frameurls)) |
| 412 | { |
| 413 | if($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 | while(list($key,$val) = each($links[2])) |
| 633 | { |
| 634 | if(!empty($val)) |
| 635 | $match[] = $val; |
| 636 | } |
| 637 | |
| 638 | while(list($key,$val) = each($links[3])) |
| 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 | "", |
| 723 | "", |
| 724 | "", |
| 725 | "", |
| 726 | "", |
| 727 | "", |
| 728 | "", |
| 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 | while(list($headerKey,$headerVal) = each($this->rawheaders)) |
| 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)); | //Arbitrary file manipulations
|
| 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, $this->maxlength); | //Arbitrary file disclosing
|
| 901 | if (strlen($_data) == 0) { |
| 902 | break; |
| 903 | } |
| 904 | $results .= $_data; |
| 905 | } while(true); |
| 906 | |
| 907 | if ($this->read_timeout > 0 && $this->_check_timeout($fp)) |
| 908 | { |
| 909 | $this->status=-100; |
| 910 | return false; |
| 911 | } |
| 912 | |
| 913 | // check if there is a a redirect meta tag |
| 914 | |
| 915 | if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]*URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$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 | while(list($headerKey,$headerVal) = each($this->rawheaders)) |
| 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); |