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1 <?php 2 /** 3 * 4 * This file is part of the phpBB Forum Software package. 5 * 6 * @copyright (c) phpBB Limited <https://www.phpbb.com> 7 * @license GNU General Public License, version 2 (GPL-2.0) 8 * 9 * For full copyright and license information, please see 10 * the docs/CREDITS.txt file. 11 * 12 */ 13 14 /** 15 * @ignore 16 */ 17 if (!defined('IN_PHPBB')) 18 { 19 exit; 20 } 21 22 /** 23 * BBCode class 24 */ 25 class bbcode 26 { 27 var $bbcode_uid = ''; 28 var $bbcode_bitfield = ''; 29 var $bbcode_cache = array(); 30 var $bbcode_template = array(); 31 32 var $bbcodes = array(); 33 34 var $template_bitfield; 35 36 /** 37 * Constructor 38 * Init bbcode cache entries if bitfield is specified 39 */ 40 function bbcode($bitfield = '') 41 { 42 if ($bitfield) 43 { 44 $this->bbcode_bitfield = $bitfield; 45 $this->bbcode_cache_init(); 46 } 47 } 48 49 /** 50 * Second pass bbcodes 51 */ 52 function bbcode_second_pass(&$message, $bbcode_uid = '', $bbcode_bitfield = false) 53 { 54 if ($bbcode_uid) 55 { 56 $this->bbcode_uid = $bbcode_uid; 57 } 58 59 if ($bbcode_bitfield !== false) 60 { 61 $this->bbcode_bitfield = $bbcode_bitfield; 62 63 // Init those added with a new bbcode_bitfield (already stored codes will not get parsed again) 64 $this->bbcode_cache_init(); 65 } 66 67 if (!$this->bbcode_bitfield) 68 { 69 // Remove the uid from tags that have not been transformed into HTML 70 if ($this->bbcode_uid) 71 { 72 $message = str_replace(':' . $this->bbcode_uid, '', $message); 73 } 74 75 return; 76 } 77 78 $str = array('search' => array(), 'replace' => array()); 79 $preg = array('search' => array(), 'replace' => array()); 80 81 $bitfield = new bitfield($this->bbcode_bitfield); 82 $bbcodes_set = $bitfield->get_all_set(); 83 84 $undid_bbcode_specialchars = false; 85 foreach ($bbcodes_set as $bbcode_id) 86 { 87 if (!empty($this->bbcode_cache[$bbcode_id])) 88 { 89 foreach ($this->bbcode_cache[$bbcode_id] as $type => $array) 90 { 91 foreach ($array as $search => $replace) 92 { 93 ${$type}['search'][] = str_replace('$uid', $this->bbcode_uid, $search); 94 ${$type}['replace'][] = $replace; 95 } 96 97 if (sizeof($str['search'])) 98 { 99 $message = str_replace($str['search'], $str['replace'], $message); 100 $str = array('search' => array(), 'replace' => array()); 101 } 102 103 if (sizeof($preg['search'])) 104 { 105 // we need to turn the entities back into their original form to allow the 106 // search patterns to work properly 107 if (!$undid_bbcode_specialchars) 108 { 109 $message = str_replace(array(':', '.'), array(':', '.'), $message); 110 $undid_bbcode_specialchars = true; 111 } 112 113 $message = preg_replace($preg['search'], $preg['replace'], $message); 114 $preg = array('search' => array(), 'replace' => array()); 115 } 116 } 117 } 118 } 119 120 // Remove the uid from tags that have not been transformed into HTML 121 $message = str_replace(':' . $this->bbcode_uid, '', $message); 122 } 123 124 /** 125 * Init bbcode cache 126 * 127 * requires: $this->bbcode_bitfield 128 * sets: $this->bbcode_cache with bbcode templates needed for bbcode_bitfield 129 */ 130 function bbcode_cache_init() 131 { 132 global $phpbb_root_path, $phpEx, $config, $user, $phpbb_dispatcher, $phpbb_extension_manager, $phpbb_path_helper; 133 134 if (empty($this->template_filename)) 135 { 136 $this->template_bitfield = new bitfield($user->style['bbcode_bitfield']); 137 138 $template = new phpbb\template\twig\twig($phpbb_path_helper, $config, $user, new phpbb\template\context(), $phpbb_extension_manager); 139 $template->set_style(); 140 $template->set_filenames(array('bbcode.html' => 'bbcode.html')); 141 $this->template_filename = $template->get_source_file_for_handle('bbcode.html'); 142 } 143 144 $bbcode_ids = $rowset = $sql = array(); 145 146 $bitfield = new bitfield($this->bbcode_bitfield); 147 $bbcodes_set = $bitfield->get_all_set(); 148 149 foreach ($bbcodes_set as $bbcode_id) 150 { 151 if (isset($this->bbcode_cache[$bbcode_id])) 152 { 153 // do not try to re-cache it if it's already in 154 continue; 155 } 156 $bbcode_ids[] = $bbcode_id; 157 158 if ($bbcode_id > NUM_CORE_BBCODES) 159 { 160 $sql[] = $bbcode_id; 161 } 162 } 163 164 if (sizeof($sql)) 165 { 166 global $db; 167 168 $sql = 'SELECT * 169 FROM ' . BBCODES_TABLE . ' 170 WHERE ' . $db->sql_in_set('bbcode_id', $sql); 171 $result = $db->sql_query($sql, 3600); 172 173 while ($row = $db->sql_fetchrow($result)) 174 { 175 // To circumvent replacing newlines with <br /> for the generated html, 176 // we use carriage returns here. They are later changed back to newlines 177 $row['bbcode_tpl'] = str_replace("\n", "\r", $row['bbcode_tpl']); 178 $row['second_pass_replace'] = str_replace("\n", "\r", $row['second_pass_replace']); 179 180 $rowset[$row['bbcode_id']] = $row; 181 } 182 $db->sql_freeresult($result); 183 } 184 185 // To perform custom second pass in extension, use $this->bbcode_second_pass_by_extension() 186 // method which accepts variable number of parameters 187 foreach ($bbcode_ids as $bbcode_id) 188 { 189 switch ($bbcode_id) 190 { 191 case 0: 192 $this->bbcode_cache[$bbcode_id] = array( 193 'str' => array( 194 '[/quote:$uid]' => $this->bbcode_tpl('quote_close', $bbcode_id) 195 ), 196 'preg' => array( 197 '#\[quote(?:="(.*?)")?:$uid\]((?!\[quote(?:=".*?")?:$uid\]).)?#ise' => "\$this->bbcode_second_pass_quote('\$1', '\$2')" 198 ) 199 ); 200 break; 201 202 case 1: 203 $this->bbcode_cache[$bbcode_id] = array( 204 'str' => array( 205 '[b:$uid]' => $this->bbcode_tpl('b_open', $bbcode_id), 206 '[/b:$uid]' => $this->bbcode_tpl('b_close', $bbcode_id), 207 ) 208 ); 209 break; 210 211 case 2: 212 $this->bbcode_cache[$bbcode_id] = array( 213 'str' => array( 214 '[i:$uid]' => $this->bbcode_tpl('i_open', $bbcode_id), 215 '[/i:$uid]' => $this->bbcode_tpl('i_close', $bbcode_id), 216 ) 217 ); 218 break; 219 220 case 3: 221 $this->bbcode_cache[$bbcode_id] = array( 222 'preg' => array( 223 '#\[url:$uid\]((.*?))\[/url:$uid\]#s' => $this->bbcode_tpl('url', $bbcode_id), 224 '#\[url=([^\[]+?):$uid\](.*?)\[/url:$uid\]#s' => $this->bbcode_tpl('url', $bbcode_id), 225 ) 226 ); 227 break; 228 229 case 4: 230 if ($user->optionget('viewimg')) 231 { 232 $this->bbcode_cache[$bbcode_id] = array( 233 'preg' => array( 234 '#\[img:$uid\](.*?)\[/img:$uid\]#s' => $this->bbcode_tpl('img', $bbcode_id), 235 ) 236 ); 237 } 238 else 239 { 240 $this->bbcode_cache[$bbcode_id] = array( 241 'preg' => array( 242 '#\[img:$uid\](.*?)\[/img:$uid\]#s' => str_replace('$2', '[ img ]', $this->bbcode_tpl('url', $bbcode_id, true)), 243 ) 244 ); 245 } 246 break; 247 248 case 5: 249 $this->bbcode_cache[$bbcode_id] = array( 250 'preg' => array( 251 '#\[size=([\-\+]?\d+):$uid\](.*?)\[/size:$uid\]#s' => $this->bbcode_tpl('size', $bbcode_id), 252 ) 253 ); 254 break; 255 256 case 6: 257 $this->bbcode_cache[$bbcode_id] = array( 258 'preg' => array( 259 '!\[color=(#[0-9a-f]{3}|#[0-9a-f]{6}|[a-z\-]+):$uid\](.*?)\[/color:$uid\]!is' => $this->bbcode_tpl('color', $bbcode_id), 260 ) 261 ); 262 break; 263 264 case 7: 265 $this->bbcode_cache[$bbcode_id] = array( 266 'str' => array( 267 '[u:$uid]' => $this->bbcode_tpl('u_open', $bbcode_id), 268 '[/u:$uid]' => $this->bbcode_tpl('u_close', $bbcode_id), 269 ) 270 ); 271 break; 272 273 case 8: 274 $this->bbcode_cache[$bbcode_id] = array( 275 'preg' => array( 276 '#\[code(?:=([a-z]+))?:$uid\](.*?)\[/code:$uid\]#ise' => "\$this->bbcode_second_pass_code('\$1', '\$2')", 277 ) 278 ); 279 break; 280 281 case 9: 282 $this->bbcode_cache[$bbcode_id] = array( 283 'preg' => array( 284 '#(\[\/?(list|\*):[mou]?:?$uid\])[\n]{1}#' => "\$1", 285 '#(\[list=([^\[]+):$uid\])[\n]{1}#' => "\$1", 286 '#\[list=([^\[]+):$uid\]#e' => "\$this->bbcode_list('\$1')", 287 ), 288 'str' => array( 289 '[list:$uid]' => $this->bbcode_tpl('ulist_open_default', $bbcode_id), 290 '[/list:u:$uid]' => $this->bbcode_tpl('ulist_close', $bbcode_id), 291 '[/list:o:$uid]' => $this->bbcode_tpl('olist_close', $bbcode_id), 292 '[*:$uid]' => $this->bbcode_tpl('listitem', $bbcode_id), 293 '[/*:$uid]' => $this->bbcode_tpl('listitem_close', $bbcode_id), 294 '[/*:m:$uid]' => $this->bbcode_tpl('listitem_close', $bbcode_id) 295 ), 296 ); 297 break; 298 299 case 10: 300 $this->bbcode_cache[$bbcode_id] = array( 301 'preg' => array( 302 '#\[email:$uid\]((.*?))\[/email:$uid\]#is' => $this->bbcode_tpl('email', $bbcode_id), 303 '#\[email=([^\[]+):$uid\](.*?)\[/email:$uid\]#is' => $this->bbcode_tpl('email', $bbcode_id) 304 ) 305 ); 306 break; 307 308 case 11: 309 if ($user->optionget('viewflash')) 310 { 311 $this->bbcode_cache[$bbcode_id] = array( 312 'preg' => array( 313 '#\[flash=([0-9]+),([0-9]+):$uid\](.*?)\[/flash:$uid\]#' => $this->bbcode_tpl('flash', $bbcode_id), 314 ) 315 ); 316 } 317 else 318 { 319 $this->bbcode_cache[$bbcode_id] = array( 320 'preg' => array( 321 '#\[flash=([0-9]+),([0-9]+):$uid\](.*?)\[/flash:$uid\]#' => str_replace('$1', '$3', str_replace('$2', '[ flash ]', $this->bbcode_tpl('url', $bbcode_id, true))) 322 ) 323 ); 324 } 325 break; 326 327 case 12: 328 $this->bbcode_cache[$bbcode_id] = array( 329 'str' => array( 330 '[/attachment:$uid]' => $this->bbcode_tpl('inline_attachment_close', $bbcode_id) 331 ), 332 'preg' => array( 333 '#\[attachment=([0-9]+):$uid\]#' => $this->bbcode_tpl('inline_attachment_open', $bbcode_id) 334 ) 335 ); 336 break; 337 338 default: 339 if (isset($rowset[$bbcode_id])) 340 { 341 if ($this->template_bitfield->get($bbcode_id)) 342 { 343 // The bbcode requires a custom template to be loaded 344 if (!$bbcode_tpl = $this->bbcode_tpl($rowset[$bbcode_id]['bbcode_tag'], $bbcode_id)) 345 { 346 // For some reason, the required template seems not to be available, use the default template 347 $bbcode_tpl = (!empty($rowset[$bbcode_id]['second_pass_replace'])) ? $rowset[$bbcode_id]['second_pass_replace'] : $rowset[$bbcode_id]['bbcode_tpl']; 348 } 349 else 350 { 351 // In order to use templates with custom bbcodes we need 352 // to replace all {VARS} to corresponding backreferences 353 // Note that backreferences are numbered from bbcode_match 354 if (preg_match_all('/\{(URL|LOCAL_URL|EMAIL|TEXT|SIMPLETEXT|INTTEXT|IDENTIFIER|COLOR|NUMBER)[0-9]*\}/', $rowset[$bbcode_id]['bbcode_match'], $m)) 355 { 356 foreach ($m[0] as $i => $tok) 357 { 358 $bbcode_tpl = str_replace($tok, '$' . ($i + 1), $bbcode_tpl); 359 } 360 } 361 } 362 } 363 else 364 { 365 // Default template 366 $bbcode_tpl = (!empty($rowset[$bbcode_id]['second_pass_replace'])) ? $rowset[$bbcode_id]['second_pass_replace'] : $rowset[$bbcode_id]['bbcode_tpl']; 367 } 368 369 // Replace {L_*} lang strings 370 $bbcode_tpl = preg_replace('/{L_([A-Z0-9_]+)}/e', "(!empty(\$user->lang['\$1'])) ? \$user->lang['\$1'] : ucwords(strtolower(str_replace('_', ' ', '\$1')))", $bbcode_tpl); 371 372 if (!empty($rowset[$bbcode_id]['second_pass_replace'])) 373 { 374 // The custom BBCode requires second-pass pattern replacements 375 $this->bbcode_cache[$bbcode_id] = array( 376 'preg' => array($rowset[$bbcode_id]['second_pass_match'] => $bbcode_tpl) 377 ); 378 } 379 else 380 { 381 $this->bbcode_cache[$bbcode_id] = array( 382 'str' => array($rowset[$bbcode_id]['second_pass_match'] => $bbcode_tpl) 383 ); 384 } 385 } 386 else 387 { 388 $this->bbcode_cache[$bbcode_id] = false; 389 } 390 break; 391 } 392 } 393 394 $bbcode_cache = $this->bbcode_cache; 395 $bbcode_bitfield = $this->bbcode_bitfield; 396 $bbcode_uid = $this->bbcode_uid; 397 398 /** 399 * Use this event to modify the bbcode_cache 400 * 401 * @event core.bbcode_cache_init_end 402 * @var array bbcode_cache The array of cached search and replace patterns of bbcodes 403 * @var string bbcode_bitfield The bbcode bitfield 404 * @var string bbcode_uid The bbcode uid 405 * @since 3.1.3-RC1 406 */ 407 $vars = array('bbcode_cache', 'bbcode_bitfield', 'bbcode_uid'); 408 extract($phpbb_dispatcher->trigger_event('core.bbcode_cache_init_end', compact($vars))); 409 410 $this->bbcode_cache = $bbcode_cache; 411 $this->bbcode_bitfield = $bbcode_bitfield; 412 $this->bbcode_uid = $bbcode_uid; 413 } 414 415 /** 416 * Return bbcode template 417 */ 418 function bbcode_tpl($tpl_name, $bbcode_id = -1, $skip_bitfield_check = false) 419 { 420 static $bbcode_hardtpl = array(); 421 if (empty($bbcode_hardtpl)) 422 { 423 global $user; 424 425 $bbcode_hardtpl = array( 426 'b_open' => '<span style="font-weight: bold">', 427 'b_close' => '</span>', 428 'i_open' => '<span style="font-style: italic">', 429 'i_close' => '</span>', 430 'u_open' => '<span style="text-decoration: underline">', 431 'u_close' => '</span>', 432 'img' => '<img src="$1" class="postimage" alt="' . $user->lang['IMAGE'] . '" />', 433 'size' => '<span style="font-size: $1%; line-height: normal">$2</span>', 434 'color' => '<span style="color: $1">$2</span>', 435 'email' => '<a href="mailto:$1">$2</a>' 436 ); 437 } 438 439 if ($bbcode_id != -1 && !$skip_bitfield_check && !$this->template_bitfield->get($bbcode_id)) 440 { 441 return (isset($bbcode_hardtpl[$tpl_name])) ? $bbcode_hardtpl[$tpl_name] : false; 442 } 443 444 if (empty($this->bbcode_template)) 445 { 446 if (($tpl = file_get_contents($this->template_filename)) === false) 447 { 448 trigger_error('Could not load bbcode template', E_USER_ERROR); 449 } 450 451 // replace \ with \\ and then ' with \'. 452 $tpl = str_replace('\\', '\\\\', $tpl); 453 $tpl = str_replace("'", "\'", $tpl); 454 455 // strip newlines and indent 456 $tpl = preg_replace("/\n[\n\r\s\t]*/", '', $tpl); 457 458 // Turn template blocks into PHP assignment statements for the values of $bbcode_tpl.. 459 $this->bbcode_template = array(); 460 461 $matches = preg_match_all('#<!-- BEGIN (.*?) -->(.*?)<!-- END (?:.*?) -->#', $tpl, $match); 462 463 for ($i = 0; $i < $matches; $i++) 464 { 465 if (empty($match[1][$i])) 466 { 467 continue; 468 } 469 470 $this->bbcode_template[$match[1][$i]] = $this->bbcode_tpl_replace($match[1][$i], $match[2][$i]); 471 } 472 } 473 474 return (isset($this->bbcode_template[$tpl_name])) ? $this->bbcode_template[$tpl_name] : ((isset($bbcode_hardtpl[$tpl_name])) ? $bbcode_hardtpl[$tpl_name] : false); 475 } 476 477 /** 478 * Return bbcode template replacement 479 */ 480 function bbcode_tpl_replace($tpl_name, $tpl) 481 { 482 global $user; 483 484 static $replacements = array( 485 'quote_username_open' => array('{USERNAME}' => '$1'), 486 'color' => array('{COLOR}' => '$1', '{TEXT}' => '$2'), 487 'size' => array('{SIZE}' => '$1', '{TEXT}' => '$2'), 488 'img' => array('{URL}' => '$1'), 489 'flash' => array('{WIDTH}' => '$1', '{HEIGHT}' => '$2', '{URL}' => '$3'), 490 'url' => array('{URL}' => '$1', '{DESCRIPTION}' => '$2'), 491 'email' => array('{EMAIL}' => '$1', '{DESCRIPTION}' => '$2') 492 ); 493 494 $tpl = preg_replace('/{L_([A-Z0-9_]+)}/e', "(!empty(\$user->lang['\$1'])) ? \$user->lang['\$1'] : ucwords(strtolower(str_replace('_', ' ', '\$1')))", $tpl); 495 496 if (!empty($replacements[$tpl_name])) 497 { 498 $tpl = strtr($tpl, $replacements[$tpl_name]); 499 } 500 501 return trim($tpl); 502 } 503 504 /** 505 * Second parse list bbcode 506 */ 507 function bbcode_list($type) 508 { 509 if ($type == '') 510 { 511 $tpl = 'ulist_open_default'; 512 $type = 'default'; 513 } 514 else if ($type == 'i') 515 { 516 $tpl = 'olist_open'; 517 $type = 'lower-roman'; 518 } 519 else if ($type == 'I') 520 { 521 $tpl = 'olist_open'; 522 $type = 'upper-roman'; 523 } 524 else if (preg_match('#^(disc|circle|square)$#i', $type)) 525 { 526 $tpl = 'ulist_open'; 527 $type = strtolower($type); 528 } 529 else if (preg_match('#^[a-z]$#', $type)) 530 { 531 $tpl = 'olist_open'; 532 $type = 'lower-alpha'; 533 } 534 else if (preg_match('#[A-Z]#', $type)) 535 { 536 $tpl = 'olist_open'; 537 $type = 'upper-alpha'; 538 } 539 else if (is_numeric($type)) 540 { 541 $tpl = 'olist_open'; 542 $type = 'decimal'; 543 } 544 else 545 { 546 $tpl = 'olist_open'; 547 $type = 'decimal'; 548 } 549 550 return str_replace('{LIST_TYPE}', $type, $this->bbcode_tpl($tpl)); 551 } 552 553 /** 554 * Second parse quote tag 555 */ 556 function bbcode_second_pass_quote($username, $quote) 557 { 558 // when using the /e modifier, preg_replace slashes double-quotes but does not 559 // seem to slash anything else 560 $quote = str_replace('\"', '"', $quote); 561 $username = str_replace('\"', '"', $username); 562 563 // remove newline at the beginning 564 if ($quote == "\n") 565 { 566 $quote = ''; 567 } 568 569 $quote = (($username) ? str_replace('$1', $username, $this->bbcode_tpl('quote_username_open')) : $this->bbcode_tpl('quote_open')) . $quote; 570 571 return $quote; 572 } 573 574 /** 575 * Second parse code tag 576 */ 577 function bbcode_second_pass_code($type, $code) 578 { 579 // when using the /e modifier, preg_replace slashes double-quotes but does not 580 // seem to slash anything else 581 $code = str_replace('\"', '"', $code); 582 583 switch ($type) 584 { 585 case 'php': 586 // Not the english way, but valid because of hardcoded syntax highlighting 587 if (strpos($code, '<span class="syntaxdefault"><br /></span>') === 0) 588 { 589 $code = substr($code, 41); 590 } 591 592 // no break; 593 594 default: 595 $code = str_replace("\t", ' ', $code); 596 $code = str_replace(' ', ' ', $code); 597 $code = str_replace(' ', ' ', $code); 598 $code = str_replace("\n ", "\n ", $code); 599 600 // keep space at the beginning 601 if (!empty($code) && $code[0] == ' ') 602 { 603 $code = ' ' . substr($code, 1); 604 } 605 606 // remove newline at the beginning 607 if (!empty($code) && $code[0] == "\n") 608 { 609 $code = substr($code, 1); 610 } 611 break; 612 } 613 614 $code = $this->bbcode_tpl('code_open') . $code . $this->bbcode_tpl('code_close'); 615 616 return $code; 617 } 618 619 /** 620 * Function to perform custom bbcode second pass by extensions 621 * can be used to assign bbcode pattern replacement 622 * Example: '#\[list=([^\[]+):$uid\]#e' => "\$this->bbcode_second_pass_by_extension('\$1')" 623 * 624 * Accepts variable number of parameters 625 * 626 * @return mixed Second pass result 627 */ 628 function bbcode_second_pass_by_extension() 629 { 630 global $phpbb_dispatcher; 631 632 $return = false; 633 $params_array = func_get_args(); 634 635 /** 636 * Event to perform bbcode second pass with 637 * the custom validating methods provided by extensions 638 * 639 * @event core.bbcode_second_pass_by_extension 640 * @var array params_array Array with the function parameters 641 * @var mixed return Second pass result to return 642 * 643 * @since 3.1.5-RC1 644 */ 645 $vars = array('params_array', 'return'); 646 extract($phpbb_dispatcher->trigger_event('core.bbcode_second_pass_by_extension', compact($vars))); 647 648 return $return; 649 } 650 }
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| Generated: Thu Jan 11 00:25:41 2018 | Cross-referenced by PHPXref 0.7.1 |