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- Bug fixes for general core bugs in 4.0.x will end 8 May 2023 (12 months).
- Bug fixes for security issues in 4.0.x will end 13 November 2023 (18 months).
- PHP version: minimum PHP 7.3.0 Note: the minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is also supported.
/lib/ -> validateurlsyntax.php (source)
1 <?php 2 3 // This file is part of Moodle - http://moodle.org/ 4 // 5 // Moodle is free software: you can redistribute it and/or modify 6 // it under the terms of the GNU General Public License as published by 7 // the Free Software Foundation, either version 3 of the License, or 8 // (at your option) any later version. 9 // 10 // Moodle is distributed in the hope that it will be useful, 11 // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 // GNU General Public License for more details. 14 // 15 // You should have received a copy of the GNU General Public License 16 // along with Moodle. If not, see <http://www.gnu.org/licenses/>. 17 18 /** 19 * About validateUrlSyntax(): 20 * This function will verify if a http URL is formatted properly, returning 21 * either with true or false. 22 * 23 * I used rfc #2396 URI: Generic Syntax as my guide when creating the 24 * regular expression. For all the details see the comments below. 25 * 26 * Usage: 27 * validateUrlSyntax( url_to_check[, options]) 28 * 29 * url_to_check - string - The url to check 30 * 31 * options - string - A optional string of options to set which parts of 32 * the url are required, optional, or not allowed. Each option 33 * must be followed by a "+" for required, "?" for optional, or 34 * "-" for not allowed. 35 * 36 * s - Scheme. Allows "+?-", defaults to "s?" 37 * H - http:// Allows "+?-", defaults to "H?" 38 * S - https:// (SSL). Allows "+?-", defaults to "S?" 39 * E - mailto: (email). Allows "+?-", defaults to "E-" 40 * F - ftp:// Allows "+?-", defaults to "F-" 41 * Dependant on scheme being enabled 42 * u - User section. Allows "+?-", defaults to "u?" 43 * P - Password in user section. Allows "+?-", defaults to "P?" 44 * Dependant on user section being enabled 45 * a - Address (ip or domain). Allows "+?-", defaults to "a+" 46 * I - Ip address. Allows "+?-", defaults to "I?" 47 * If I+, then domains are disabled 48 * If I-, then domains are required 49 * Dependant on address being enabled 50 * p - Port number. Allows "+?-", defaults to "p?" 51 * f - File path. Allows "+?-", defaults to "f?" 52 * q - Query section. Allows "+?-", defaults to "q?" 53 * r - Fragment (anchor). Allows "+?-", defaults to "r?" 54 * 55 * Paste the funtion code, or include_once() this template at the top of the page 56 * you wish to use this function. 57 * 58 * 59 * Examples: 60 * <code> 61 * validateUrlSyntax('http://george@www.cnn.com/#top') 62 * 63 * validateUrlSyntax('https://games.yahoo.com:8080/board/chess.htm?move=true') 64 * 65 * validateUrlSyntax('http://www.hotmail.com/', 's+u-I-p-q-r-') 66 * 67 * validateUrlSyntax('/directory/file.php#top', 's-u-a-p-f+') 68 * 69 * 70 * if (validateUrlSyntax('http://www.canowhoopass.com/', 'u-')) 71 * { 72 * echo 'URL SYNTAX IS VERIFIED'; 73 * } else { 74 * echo 'URL SYNTAX IS ILLEGAL'; 75 * } 76 * </code> 77 * 78 * Last Edited: 79 * June 15th 2017 80 * 81 * 82 * Changelog: 83 * June 15th 2017 by Moodle. 84 * -Added rtmp:// option. 85 * 86 * December 15th 2004 87 * -Added new TLD's - .jobs, .mobi, .post and .travel. They are official, but not yet active. 88 * 89 * August 31th 2004 90 * -Fixed bug allowing empty username even when it was required 91 * -Changed and added a few options to add extra schemes 92 * -Added mailto: ftp:// and http:// options 93 * -https option was 'l' now it is 'S' (capital) 94 * -Added password option. Now passwords can be disabled while usernames are ok (for email) 95 * -IP Address option was 'i' now it is 'I' (capital) 96 * -Options are now case sensitive 97 * -Added validateEmailSyntax() and validateFtpSyntax() functions below<br> 98 * 99 * August 27th, 2004 100 * -IP group range is more specific. Used to allow 0-299. Now it is 0-255 101 * -Port range more specific. Used to allow 0-69999. Now it is 0-65535<br> 102 * -Fixed bug disallowing 'i-' option.<br> 103 * -Changed license to GPL 104 * 105 * July 8th, 2004 106 * -Fixed bug disallowing 'l-' option. Thanks Dr. Cheap 107 * 108 * June 15, 2004 109 * -Added options parameter to make it easier for people to plug the function in 110 * without needed to rework the code. 111 * -Split the example application away from the function 112 * 113 * June 1, 2004 114 * -Complete rewrite 115 * -Now more modular 116 * -Easier to disable sections 117 * -Easier to port to other languages 118 * -Easier to port to verify email addresses 119 * -Uses only simple regular expressions so it is more portable 120 * -Follows RFC closer for domain names. Some "play" domains may break 121 * -Renamed from 'verifyUrl()' to 'validateUrlSyntax()' 122 * -Removed extra code which added 'http://' and trailing '/' if it was missing 123 * -That code was better suited for a massaging function, not verifying 124 * -Bug fixes: 125 * -Now splits up and forces '/path?query#fragment' order 126 * -No longer requires a path when using a query or fragment 127 * 128 * August 29, 2003 129 * -Allowed port numbers above 9999. Now allows up to 69999 130 * 131 * Sometime, 2002 132 * -Added new top level domains 133 * -aero, coop, museum, name, info, biz, pro 134 * 135 * October 5, 2000 136 * -First Version 137 * 138 * 139 * Intentional Limitations: 140 * -Does not verify url actually exists. Only validates the syntax 141 * -Strictly follows the RFC standards. Some urls exist in the wild which will 142 * not validate. Including ones with square brackets in the query section '[]' 143 * 144 * 145 * Known Problems: 146 * -None at this time 147 * 148 * 149 * Author(s): 150 * Rod Apeldoorn - rod(at)canowhoopass(dot)com 151 * 152 * 153 * Homepage: 154 * http://www.canowhoopass.com/ 155 * 156 * 157 * Thanks!: 158 * -WEAV -Several members of Weav helped to test - http://weav.bc.ca/ 159 * -There were also a number of emails from other developers expressing 160 * thanks and suggestions. It is nice to be appreciated. Thanks! 161 * 162 * Alternate Commercial Licenses: 163 * For information in regards to alternate licensing, contact me. 164 * 165 * @package moodlecore 166 * @copyright Copyright 2004, Rod Apeldoorn {@link http://www.canowhoopass.com/} 167 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later 168 */ 169 170 /** 171 * BEGINNING OF validateUrlSyntax() function 172 */ 173 function validateUrlSyntax( $urladdr, $options="" ){ 174 175 // Force Options parameter to be lower case 176 // DISABLED PERMAMENTLY - OK to remove from code 177 // $options = strtolower($options); 178 179 // Check Options Parameter 180 if (!preg_match( '/^([sHSEFRuPaIpfqr][+?-])*$/', $options )) 181 { 182 trigger_error("Options attribute malformed", E_USER_ERROR); 183 } 184 185 // Set Options Array, set defaults if options are not specified 186 // Scheme 187 if (strpos( $options, 's') === false) $aOptions['s'] = '?'; 188 else $aOptions['s'] = substr( $options, strpos( $options, 's') + 1, 1); 189 // http:// 190 if (strpos( $options, 'H') === false) $aOptions['H'] = '?'; 191 else $aOptions['H'] = substr( $options, strpos( $options, 'H') + 1, 1); 192 // https:// (SSL) 193 if (strpos( $options, 'S') === false) $aOptions['S'] = '?'; 194 else $aOptions['S'] = substr( $options, strpos( $options, 'S') + 1, 1); 195 // mailto: (email) 196 if (strpos( $options, 'E') === false) $aOptions['E'] = '-'; 197 else $aOptions['E'] = substr( $options, strpos( $options, 'E') + 1, 1); 198 // ftp:// 199 if (strpos( $options, 'F') === false) $aOptions['F'] = '-'; 200 else $aOptions['F'] = substr( $options, strpos( $options, 'F') + 1, 1); 201 // rtmp:// 202 if (strpos( $options, 'R') === false) $aOptions['R'] = '-'; 203 else $aOptions['R'] = substr( $options, strpos( $options, 'R') + 1, 1); 204 // User section 205 if (strpos( $options, 'u') === false) $aOptions['u'] = '?'; 206 else $aOptions['u'] = substr( $options, strpos( $options, 'u') + 1, 1); 207 // Password in user section 208 if (strpos( $options, 'P') === false) $aOptions['P'] = '?'; 209 else $aOptions['P'] = substr( $options, strpos( $options, 'P') + 1, 1); 210 // Address Section 211 if (strpos( $options, 'a') === false) $aOptions['a'] = '+'; 212 else $aOptions['a'] = substr( $options, strpos( $options, 'a') + 1, 1); 213 // IP Address in address section 214 if (strpos( $options, 'I') === false) $aOptions['I'] = '?'; 215 else $aOptions['I'] = substr( $options, strpos( $options, 'I') + 1, 1); 216 // Port number 217 if (strpos( $options, 'p') === false) $aOptions['p'] = '?'; 218 else $aOptions['p'] = substr( $options, strpos( $options, 'p') + 1, 1); 219 // File Path 220 if (strpos( $options, 'f') === false) $aOptions['f'] = '?'; 221 else $aOptions['f'] = substr( $options, strpos( $options, 'f') + 1, 1); 222 // Query Section 223 if (strpos( $options, 'q') === false) $aOptions['q'] = '?'; 224 else $aOptions['q'] = substr( $options, strpos( $options, 'q') + 1, 1); 225 // Fragment (Anchor) 226 if (strpos( $options, 'r') === false) $aOptions['r'] = '?'; 227 else $aOptions['r'] = substr( $options, strpos( $options, 'r') + 1, 1); 228 229 230 // Loop through options array, to search for and replace "-" to "{0}" and "+" to "" 231 foreach($aOptions as $key => $value) 232 { 233 if ($value == '-') 234 { 235 $aOptions[$key] = '{0}'; 236 } 237 if ($value == '+') 238 { 239 $aOptions[$key] = ''; 240 } 241 } 242 243 // DEBUGGING - Unescape following line to display to screen current option values 244 // echo '<pre>'; print_r($aOptions); echo '</pre>'; 245 246 247 // Preset Allowed Characters 248 $alphanum = '[a-zA-Z0-9]'; // Alpha Numeric 249 $unreserved = '[a-zA-Z0-9_.!~*' . '\'' . '()-]'; 250 $escaped = '(%[0-9a-fA-F]{2})'; // Escape sequence - In Hex - %6d would be a 'm' 251 $reserved = '[;/?:@&=+$,]'; // Special characters in the URI 252 253 // Beginning Regular Expression 254 // Scheme - Allows for 'http://', 'https://', 'mailto:', 'ftp://' or 'rtmp://' 255 $scheme = '('; 256 if ($aOptions['H'] === '') { $scheme .= 'http://'; } 257 elseif ($aOptions['S'] === '') { $scheme .= 'https://'; } 258 elseif ($aOptions['E'] === '') { $scheme .= 'mailto:'; } 259 elseif ($aOptions['F'] === '') { $scheme .= 'ftp://'; } 260 elseif ($aOptions['R'] === '') { $scheme .= 'rtmp://'; } 261 else 262 { 263 if ($aOptions['H'] === '?') { $scheme .= '|(http://)'; } 264 if ($aOptions['S'] === '?') { $scheme .= '|(https://)'; } 265 if ($aOptions['E'] === '?') { $scheme .= '|(mailto:)'; } 266 if ($aOptions['F'] === '?') { $scheme .= '|(ftp://)'; } 267 if ($aOptions['R'] === '?') { $scheme .= '|(rtmp://)'; } 268 $scheme = str_replace('(|', '(', $scheme); // fix first pipe 269 } 270 $scheme .= ')' . $aOptions['s']; 271 // End setting scheme 272 273 // User Info - Allows for 'username@' or 'username:password@'. Note: contrary to rfc, I removed ':' from username section, allowing it only in password. 274 // /---------------- Username -----------------------\ /-------------------------------- Password ------------------------------\ 275 $userinfo = '((' . $unreserved . '|' . $escaped . '|[;&=+$,]' . ')+(:(' . $unreserved . '|' . $escaped . '|[;:&=+$,]' . ')+)' . $aOptions['P'] . '@)' . $aOptions['u']; 276 277 // IP ADDRESS - Allows 0.0.0.0 to 255.255.255.255 278 $ipaddress = '((((2(([0-4][0-9])|(5[0-5])))|([01]?[0-9]?[0-9]))\.){3}((2(([0-4][0-9])|(5[0-5])))|([01]?[0-9]?[0-9])))'; 279 280 // Tertiary Domain(s) - Optional - Multi - Although some sites may use other characters, the RFC says tertiary domains have the same naming restrictions as second level domains 281 $domain_tertiary = '(' . $alphanum . '(([a-zA-Z0-9-]{0,62})' . $alphanum . ')?\.)*'; 282 283 /* MDL-9295 - take out domain_secondary here and below, so that URLs like http://localhost/ and lan addresses like http://host/ are accepted. 284 // Second Level Domain - Required - First and last characters must be Alpha-numeric. Hyphens are allowed inside. 285 $domain_secondary = '(' . $alphanum . '(([a-zA-Z0-9-]{0,62})' . $alphanum . ')?\.)'; 286 */ 287 288 // we want more relaxed URLs in Moodle: MDL-11462 289 // Top Level Domain - First character must be Alpha. Last character must be AlphaNumeric. Hyphens are allowed inside. 290 $domain_toplevel = '([a-zA-Z](([a-zA-Z0-9-]*)[a-zA-Z0-9])?)'; 291 /* // Top Level Domain - Required - Domain List Current As Of December 2004. Use above escaped line to be forgiving of possible future TLD's 292 $domain_toplevel = '(aero|biz|com|coop|edu|gov|info|int|jobs|mil|mobi|museum|name|net|org|post|pro|travel|ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|az|ax|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)'; 293 */ 294 295 // Address can be IP address or Domain 296 if ($aOptions['I'] === '{0}') { // IP Address Not Allowed 297 $address = '(' . $domain_tertiary . /* MDL-9295 $domain_secondary . */ $domain_toplevel . ')'; 298 } elseif ($aOptions['I'] === '') { // IP Address Required 299 $address = '(' . $ipaddress . ')'; 300 } else { // IP Address Optional 301 $address = '((' . $ipaddress . ')|(' . $domain_tertiary . /* MDL-9295 $domain_secondary . */ $domain_toplevel . '))'; 302 } 303 $address = $address . $aOptions['a']; 304 305 // Port Number - :80 or :8080 or :65534 Allows range of :0 to :65535 306 // (0-59999) |(60000-64999) |(65000-65499) |(65500-65529) |(65530-65535) 307 $port_number = '(:(([0-5]?[0-9]{1,4})|(6[0-4][0-9]{3})|(65[0-4][0-9]{2})|(655[0-2][0-9])|(6553[0-5])))' . $aOptions['p']; 308 309 // Path - Can be as simple as '/' or have multiple folders and filenames 310 $path = '(/((;)?(' . $unreserved . '|' . $escaped . '|' . '[:@&=+$,]' . ')+(/)?)*)' . $aOptions['f']; 311 312 // Query Section - Accepts ?var1=value1&var2=value2 or ?2393,1221 and much more 313 $querystring = '(\?(' . $reserved . '|' . $unreserved . '|' . $escaped . ')*)' . $aOptions['q']; 314 315 // Fragment Section - Accepts anchors such as #top 316 $fragment = '(\#(' . $reserved . '|' . $unreserved . '|' . $escaped . ')*)' . $aOptions['r']; 317 318 319 // Building Regular Expression 320 $regexp = '#^' . $scheme . $userinfo . $address . $port_number . $path . $querystring . $fragment . '$#i'; 321 322 // DEBUGGING - Uncomment Line Below To Display The Regular Expression Built 323 // echo '<pre>' . htmlentities(wordwrap($regexp,70,"\n",1)) . '</pre>'; 324 325 // Running the regular expression 326 if (preg_match( $regexp, $urladdr )) 327 { 328 return true; // The domain passed 329 } 330 else 331 { 332 return false; // The domain didn't pass the expression 333 } 334 335 } // END Function validateUrlSyntax() 336 337 338 339 /** 340 * About ValidateEmailSyntax(): 341 * This function uses the ValidateUrlSyntax() function to easily check the 342 * syntax of an email address. It accepts the same options as ValidateURLSyntax 343 * but defaults them for email addresses. 344 * 345 * 346 * Usage: 347 * <code> 348 * validateEmailSyntax( url_to_check[, options]) 349 * </code> 350 * url_to_check - string - The url to check 351 * 352 * options - string - A optional string of options to set which parts of 353 * the url are required, optional, or not allowed. Each option 354 * must be followed by a "+" for required, "?" for optional, or 355 * "-" for not allowed. See ValidateUrlSyntax() docs for option list. 356 * 357 * The default options are changed to: 358 * s-H-S-E+F-u+P-a+I-p-f-q-r- 359 * 360 * This only allows an address of "name@domain". 361 * 362 * Examples: 363 * <code> 364 * validateEmailSyntax('george@fakemail.com') 365 * validateEmailSyntax('mailto:george@fakemail.com', 's+') 366 * validateEmailSyntax('george@fakemail.com?subject=Hi%20George', 'q?') 367 * validateEmailSyntax('george@212.198.33.12', 'I?') 368 * </code> 369 * 370 * 371 * Author(s): 372 * Rod Apeldoorn - rod(at)canowhoopass(dot)com 373 * 374 * 375 * Homepage: 376 * http://www.canowhoopass.com/ 377 * 378 * 379 * License: 380 * Copyright 2004 - Rod Apeldoorn 381 * 382 * Released under same license as validateUrlSyntax(). For details, contact me. 383 */ 384 385 function validateEmailSyntax( $emailaddr, $options="" ){ 386 387 // Check Options Parameter 388 if (!preg_match( '/^([sHSEFuPaIpfqr][+?-])*$/', $options )) 389 { 390 trigger_error("Options attribute malformed", E_USER_ERROR); 391 } 392 393 // Set Options Array, set defaults if options are not specified 394 // Scheme 395 if (strpos( $options, 's') === false) $aOptions['s'] = '-'; 396 else $aOptions['s'] = substr( $options, strpos( $options, 's') + 1, 1); 397 // http:// 398 if (strpos( $options, 'H') === false) $aOptions['H'] = '-'; 399 else $aOptions['H'] = substr( $options, strpos( $options, 'H') + 1, 1); 400 // https:// (SSL) 401 if (strpos( $options, 'S') === false) $aOptions['S'] = '-'; 402 else $aOptions['S'] = substr( $options, strpos( $options, 'S') + 1, 1); 403 // mailto: (email) 404 if (strpos( $options, 'E') === false) $aOptions['E'] = '?'; 405 else $aOptions['E'] = substr( $options, strpos( $options, 'E') + 1, 1); 406 // ftp:// 407 if (strpos( $options, 'F') === false) $aOptions['F'] = '-'; 408 else $aOptions['F'] = substr( $options, strpos( $options, 'F') + 1, 1); 409 // User section 410 if (strpos( $options, 'u') === false) $aOptions['u'] = '+'; 411 else $aOptions['u'] = substr( $options, strpos( $options, 'u') + 1, 1); 412 // Password in user section 413 if (strpos( $options, 'P') === false) $aOptions['P'] = '-'; 414 else $aOptions['P'] = substr( $options, strpos( $options, 'P') + 1, 1); 415 // Address Section 416 if (strpos( $options, 'a') === false) $aOptions['a'] = '+'; 417 else $aOptions['a'] = substr( $options, strpos( $options, 'a') + 1, 1); 418 // IP Address in address section 419 if (strpos( $options, 'I') === false) $aOptions['I'] = '-'; 420 else $aOptions['I'] = substr( $options, strpos( $options, 'I') + 1, 1); 421 // Port number 422 if (strpos( $options, 'p') === false) $aOptions['p'] = '-'; 423 else $aOptions['p'] = substr( $options, strpos( $options, 'p') + 1, 1); 424 // File Path 425 if (strpos( $options, 'f') === false) $aOptions['f'] = '-'; 426 else $aOptions['f'] = substr( $options, strpos( $options, 'f') + 1, 1); 427 // Query Section 428 if (strpos( $options, 'q') === false) $aOptions['q'] = '-'; 429 else $aOptions['q'] = substr( $options, strpos( $options, 'q') + 1, 1); 430 // Fragment (Anchor) 431 if (strpos( $options, 'r') === false) $aOptions['r'] = '-'; 432 else $aOptions['r'] = substr( $options, strpos( $options, 'r') + 1, 1); 433 434 // Generate options 435 $newoptions = ''; 436 foreach($aOptions as $key => $value) 437 { 438 $newoptions .= $key . $value; 439 } 440 441 // DEBUGGING - Uncomment line below to display generated options 442 // echo '<pre>' . $newoptions . '</pre>'; 443 444 // Send to validateUrlSyntax() and return result 445 return validateUrlSyntax( $emailaddr, $newoptions); 446 447 } // END Function validateEmailSyntax() 448 449 450 451 /** 452 * About ValidateFtpSyntax(): 453 * This function uses the ValidateUrlSyntax() function to easily check the 454 * syntax of an FTP address. It accepts the same options as ValidateURLSyntax 455 * but defaults them for FTP addresses. 456 * 457 * 458 * Usage: 459 * <code> 460 * validateFtpSyntax( url_to_check[, options]) 461 * </code> 462 * url_to_check - string - The url to check 463 * 464 * options - string - A optional string of options to set which parts of 465 * the url are required, optional, or not allowed. Each option 466 * must be followed by a "+" for required, "?" for optional, or 467 * "-" for not allowed. See ValidateUrlSyntax() docs for option list. 468 * 469 * The default options are changed to: 470 * s?H-S-E-F+u?P?a+I?p?f?q-r- 471 * 472 * Examples: 473 * <code> 474 * validateFtpSyntax('ftp://netscape.com') 475 * validateFtpSyntax('moz:iesucks@netscape.com') 476 * validateFtpSyntax('ftp://netscape.com:2121/browsers/ns7/', 'u-') 477 * </code> 478 * 479 * Author(s): 480 * Rod Apeldoorn - rod(at)canowhoopass(dot)com 481 * 482 * 483 * Homepage: 484 * http://www.canowhoopass.com/ 485 * 486 * 487 * License: 488 * Copyright 2004 - Rod Apeldoorn 489 * 490 * Released under same license as validateUrlSyntax(). For details, contact me. 491 */ 492 493 function validateFtpSyntax( $ftpaddr, $options="" ){ 494 495 // Check Options Parameter 496 if (!preg_match( '/^([sHSEFuPaIpfqr][+?-])*$/', $options )) 497 { 498 trigger_error("Options attribute malformed", E_USER_ERROR); 499 } 500 501 // Set Options Array, set defaults if options are not specified 502 // Scheme 503 if (strpos( $options, 's') === false) $aOptions['s'] = '?'; 504 else $aOptions['s'] = substr( $options, strpos( $options, 's') + 1, 1); 505 // http:// 506 if (strpos( $options, 'H') === false) $aOptions['H'] = '-'; 507 else $aOptions['H'] = substr( $options, strpos( $options, 'H') + 1, 1); 508 // https:// (SSL) 509 if (strpos( $options, 'S') === false) $aOptions['S'] = '-'; 510 else $aOptions['S'] = substr( $options, strpos( $options, 'S') + 1, 1); 511 // mailto: (email) 512 if (strpos( $options, 'E') === false) $aOptions['E'] = '-'; 513 else $aOptions['E'] = substr( $options, strpos( $options, 'E') + 1, 1); 514 // ftp:// 515 if (strpos( $options, 'F') === false) $aOptions['F'] = '+'; 516 else $aOptions['F'] = substr( $options, strpos( $options, 'F') + 1, 1); 517 // User section 518 if (strpos( $options, 'u') === false) $aOptions['u'] = '?'; 519 else $aOptions['u'] = substr( $options, strpos( $options, 'u') + 1, 1); 520 // Password in user section 521 if (strpos( $options, 'P') === false) $aOptions['P'] = '?'; 522 else $aOptions['P'] = substr( $options, strpos( $options, 'P') + 1, 1); 523 // Address Section 524 if (strpos( $options, 'a') === false) $aOptions['a'] = '+'; 525 else $aOptions['a'] = substr( $options, strpos( $options, 'a') + 1, 1); 526 // IP Address in address section 527 if (strpos( $options, 'I') === false) $aOptions['I'] = '?'; 528 else $aOptions['I'] = substr( $options, strpos( $options, 'I') + 1, 1); 529 // Port number 530 if (strpos( $options, 'p') === false) $aOptions['p'] = '?'; 531 else $aOptions['p'] = substr( $options, strpos( $options, 'p') + 1, 1); 532 // File Path 533 if (strpos( $options, 'f') === false) $aOptions['f'] = '?'; 534 else $aOptions['f'] = substr( $options, strpos( $options, 'f') + 1, 1); 535 // Query Section 536 if (strpos( $options, 'q') === false) $aOptions['q'] = '-'; 537 else $aOptions['q'] = substr( $options, strpos( $options, 'q') + 1, 1); 538 // Fragment (Anchor) 539 if (strpos( $options, 'r') === false) $aOptions['r'] = '-'; 540 else $aOptions['r'] = substr( $options, strpos( $options, 'r') + 1, 1); 541 542 // Generate options 543 $newoptions = ''; 544 foreach($aOptions as $key => $value) 545 { 546 $newoptions .= $key . $value; 547 } 548 549 // DEBUGGING - Uncomment line below to display generated options 550 // echo '<pre>' . $newoptions . '</pre>'; 551 552 // Send to validateUrlSyntax() and return result 553 return validateUrlSyntax( $ftpaddr, $newoptions); 554 555 } // END Function validateFtpSyntax()
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