Verzeichnisstruktur phpBB-3.1.0


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27.10.2014

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bbcode.php

Zuletzt modifiziert: 09.10.2024, 12:51 - Dateigröße: 16.11 KiB


 001  <?php
 002  /**
 003  *
 004  * This file is part of the phpBB Forum Software package.
 005  *
 006  * @copyright (c) phpBB Limited <https://www.phpbb.com>
 007  * @license GNU General Public License, version 2 (GPL-2.0)
 008  *
 009  * For full copyright and license information, please see
 010  * the docs/CREDITS.txt file.
 011  *
 012  */
 013   
 014  /**
 015  * @ignore
 016  */
 017  if (!defined('IN_PHPBB'))
 018  {
 019      exit;
 020  }
 021   
 022  /**
 023  * BBCode class
 024  */
 025  class bbcode
 026  {
 027      var $bbcode_uid = '';
 028      var $bbcode_bitfield = '';
 029      var $bbcode_cache = array();
 030      var $bbcode_template = array();
 031   
 032      var $bbcodes = array();
 033   
 034      var $template_bitfield;
 035   
 036      /**
 037      * Constructor
 038      * Init bbcode cache entries if bitfield is specified
 039      */
 040      function bbcode($bitfield = '')
 041      {
 042          if ($bitfield)
 043          {
 044              $this->bbcode_bitfield = $bitfield;
 045              $this->bbcode_cache_init();
 046          }
 047      }
 048   
 049      /**
 050      * Second pass bbcodes
 051      */
 052      function bbcode_second_pass(&$message, $bbcode_uid = '', $bbcode_bitfield = false)
 053      {
 054          if ($bbcode_uid)
 055          {
 056              $this->bbcode_uid = $bbcode_uid;
 057          }
 058   
 059          if ($bbcode_bitfield !== false)
 060          {
 061              $this->bbcode_bitfield = $bbcode_bitfield;
 062   
 063              // Init those added with a new bbcode_bitfield (already stored codes will not get parsed again)
 064              $this->bbcode_cache_init();
 065          }
 066   
 067          if (!$this->bbcode_bitfield)
 068          {
 069              // Remove the uid from tags that have not been transformed into HTML
 070              if ($this->bbcode_uid)
 071              {
 072                  $message = str_replace(':' . $this->bbcode_uid, '', $message);
 073              }
 074   
 075              return;
 076          }
 077   
 078          $str = array('search' => array(), 'replace' => array());
 079          $preg = array('search' => array(), 'replace' => array());
 080   
 081          $bitfield = new bitfield($this->bbcode_bitfield);
 082          $bbcodes_set = $bitfield->get_all_set();
 083   
 084          $undid_bbcode_specialchars = false;
 085          foreach ($bbcodes_set as $bbcode_id)
 086          {
 087              if (!empty($this->bbcode_cache[$bbcode_id]))
 088              {
 089                  foreach ($this->bbcode_cache[$bbcode_id] as $type => $array)
 090                  {
 091                      foreach ($array as $search => $replace)
 092                      {
 093                          ${$type}['search'][] = str_replace('$uid', $this->bbcode_uid, $search);
 094                          ${$type}['replace'][] = $replace;
 095                      }
 096   
 097                      if (sizeof($str['search']))
 098                      {
 099                          $message = str_replace($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('&#58;', '&#46;'), 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_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          foreach ($bbcode_ids as $bbcode_id)
 186          {
 187              switch ($bbcode_id)
 188              {
 189                  case 0:
 190                      $this->bbcode_cache[$bbcode_id] = array(
 191                          'str' => array(
 192                              '[/quote:$uid]'    => $this->bbcode_tpl('quote_close', $bbcode_id)
 193                          ),
 194                          'preg' => array(
 195                              '#\[quote(?:=&quot;(.*?)&quot;)?:$uid\]((?!\[quote(?:=&quot;.*?&quot;)?:$uid\]).)?#ise'    => "\$this->bbcode_second_pass_quote('\$1', '\$2')"
 196                          )
 197                      );
 198                  break;
 199   
 200                  case 1:
 201                      $this->bbcode_cache[$bbcode_id] = array(
 202                          'str' => array(
 203                              '[b:$uid]'    => $this->bbcode_tpl('b_open', $bbcode_id),
 204                              '[/b:$uid]'    => $this->bbcode_tpl('b_close', $bbcode_id),
 205                          )
 206                      );
 207                  break;
 208   
 209                  case 2:
 210                      $this->bbcode_cache[$bbcode_id] = array(
 211                          'str' => array(
 212                              '[i:$uid]'    => $this->bbcode_tpl('i_open', $bbcode_id),
 213                              '[/i:$uid]'    => $this->bbcode_tpl('i_close', $bbcode_id),
 214                          )
 215                      );
 216                  break;
 217   
 218                  case 3:
 219                      $this->bbcode_cache[$bbcode_id] = array(
 220                          'preg' => array(
 221                              '#\[url:$uid\]((.*?))\[/url:$uid\]#s'            => $this->bbcode_tpl('url', $bbcode_id),
 222                              '#\[url=([^\[]+?):$uid\](.*?)\[/url:$uid\]#s'    => $this->bbcode_tpl('url', $bbcode_id),
 223                          )
 224                      );
 225                  break;
 226   
 227                  case 4:
 228                      if ($user->optionget('viewimg'))
 229                      {
 230                          $this->bbcode_cache[$bbcode_id] = array(
 231                              'preg' => array(
 232                                  '#\[img:$uid\](.*?)\[/img:$uid\]#s'        => $this->bbcode_tpl('img', $bbcode_id),
 233                              )
 234                          );
 235                      }
 236                      else
 237                      {
 238                          $this->bbcode_cache[$bbcode_id] = array(
 239                              'preg' => array(
 240                                  '#\[img:$uid\](.*?)\[/img:$uid\]#s'        => str_replace('$2', '[ img ]', $this->bbcode_tpl('url', $bbcode_id, true)),
 241                              )
 242                          );
 243                      }
 244                  break;
 245   
 246                  case 5:
 247                      $this->bbcode_cache[$bbcode_id] = array(
 248                          'preg' => array(
 249                              '#\[size=([\-\+]?\d+):$uid\](.*?)\[/size:$uid\]#s'    => $this->bbcode_tpl('size', $bbcode_id),
 250                          )
 251                      );
 252                  break;
 253   
 254                  case 6:
 255                      $this->bbcode_cache[$bbcode_id] = array(
 256                          'preg' => array(
 257                              '!\[color=(#[0-9a-f]{3}|#[0-9a-f]{6}|[a-z\-]+):$uid\](.*?)\[/color:$uid\]!is'    => $this->bbcode_tpl('color', $bbcode_id),
 258                          )
 259                      );
 260                  break;
 261   
 262                  case 7:
 263                      $this->bbcode_cache[$bbcode_id] = array(
 264                          'str' => array(
 265                              '[u:$uid]'    => $this->bbcode_tpl('u_open', $bbcode_id),
 266                              '[/u:$uid]'    => $this->bbcode_tpl('u_close', $bbcode_id),
 267                          )
 268                      );
 269                  break;
 270   
 271                  case 8:
 272                      $this->bbcode_cache[$bbcode_id] = array(
 273                          'preg' => array(
 274                              '#\[code(?:=([a-z]+))?:$uid\](.*?)\[/code:$uid\]#ise'    => "\$this->bbcode_second_pass_code('\$1', '\$2')",
 275                          )
 276                      );
 277                  break;
 278   
 279                  case 9:
 280                      $this->bbcode_cache[$bbcode_id] = array(
 281                          'preg' => array(
 282                              '#(\[\/?(list|\*):[mou]?:?$uid\])[\n]{1}#'    => "\$1",
 283                              '#(\[list=([^\[]+):$uid\])[\n]{1}#'            => "\$1",
 284                              '#\[list=([^\[]+):$uid\]#e'                    => "\$this->bbcode_list('\$1')",
 285                          ),
 286                          'str' => array(
 287                              '[list:$uid]'        => $this->bbcode_tpl('ulist_open_default', $bbcode_id),
 288                              '[/list:u:$uid]'    => $this->bbcode_tpl('ulist_close', $bbcode_id),
 289                              '[/list:o:$uid]'    => $this->bbcode_tpl('olist_close', $bbcode_id),
 290                              '[*:$uid]'            => $this->bbcode_tpl('listitem', $bbcode_id),
 291                              '[/*:$uid]'            => $this->bbcode_tpl('listitem_close', $bbcode_id),
 292                              '[/*:m:$uid]'        => $this->bbcode_tpl('listitem_close', $bbcode_id)
 293                          ),
 294                      );
 295                  break;
 296   
 297                  case 10:
 298                      $this->bbcode_cache[$bbcode_id] = array(
 299                          'preg' => array(
 300                              '#\[email:$uid\]((.*?))\[/email:$uid\]#is'            => $this->bbcode_tpl('email', $bbcode_id),
 301                              '#\[email=([^\[]+):$uid\](.*?)\[/email:$uid\]#is'    => $this->bbcode_tpl('email', $bbcode_id)
 302                          )
 303                      );
 304                  break;
 305   
 306                  case 11:
 307                      if ($user->optionget('viewflash'))
 308                      {
 309                          $this->bbcode_cache[$bbcode_id] = array(
 310                              'preg' => array(
 311                                  '#\[flash=([0-9]+),([0-9]+):$uid\](.*?)\[/flash:$uid\]#'    => $this->bbcode_tpl('flash', $bbcode_id),
 312                              )
 313                          );
 314                      }
 315                      else
 316                      {
 317                          $this->bbcode_cache[$bbcode_id] = array(
 318                              'preg' => array(
 319                                  '#\[flash=([0-9]+),([0-9]+):$uid\](.*?)\[/flash:$uid\]#'    => str_replace('$1', '$3', str_replace('$2', '[ flash ]', $this->bbcode_tpl('url', $bbcode_id, true)))
 320                              )
 321                          );
 322                      }
 323                  break;
 324   
 325                  case 12:
 326                      $this->bbcode_cache[$bbcode_id] = array(
 327                          'str'    => array(
 328                              '[/attachment:$uid]'    => $this->bbcode_tpl('inline_attachment_close', $bbcode_id)
 329                          ),
 330                          'preg'    => array(
 331                              '#\[attachment=([0-9]+):$uid\]#'    => $this->bbcode_tpl('inline_attachment_open', $bbcode_id)
 332                          )
 333                      );
 334                  break;
 335   
 336                  default:
 337                      if (isset($rowset[$bbcode_id]))
 338                      {
 339                          if ($this->template_bitfield->get($bbcode_id))
 340                          {
 341                              // The bbcode requires a custom template to be loaded
 342                              if (!$bbcode_tpl = $this->bbcode_tpl($rowset[$bbcode_id]['bbcode_tag'], $bbcode_id))
 343                              {
 344                                  // For some reason, the required template seems not to be available, use the default template
 345                                  $bbcode_tpl = (!empty($rowset[$bbcode_id]['second_pass_replace'])) ? $rowset[$bbcode_id]['second_pass_replace'] : $rowset[$bbcode_id]['bbcode_tpl'];
 346                              }
 347                              else
 348                              {
 349                                  // In order to use templates with custom bbcodes we need
 350                                  // to replace all {VARS} to corresponding backreferences
 351                                  // Note that backreferences are numbered from bbcode_match
 352                                  if (preg_match_all('/\{(URL|LOCAL_URL|EMAIL|TEXT|SIMPLETEXT|INTTEXT|IDENTIFIER|COLOR|NUMBER)[0-9]*\}/', $rowset[$bbcode_id]['bbcode_match'], $m))
 353                                  {
 354                                      foreach ($m[0] as $i => $tok)
 355                                      {
 356                                          $bbcode_tpl = str_replace($tok, '$' . ($i + 1), $bbcode_tpl);
 357                                      }
 358                                  }
 359                              }
 360                          }
 361                          else
 362                          {
 363                              // Default template
 364                              $bbcode_tpl = (!empty($rowset[$bbcode_id]['second_pass_replace'])) ? $rowset[$bbcode_id]['second_pass_replace'] : $rowset[$bbcode_id]['bbcode_tpl'];
 365                          }
 366   
 367                          // Replace {L_*} lang strings
 368                          $bbcode_tpl = preg_replace('/{L_([A-Z0-9_]+)}/e', "(!empty(\$user->lang['\$1'])) ? \$user->lang['\$1'] : ucwords(strtolower(str_replace('_', ' ', '\$1')))", $bbcode_tpl);
 369   
 370                          if (!empty($rowset[$bbcode_id]['second_pass_replace']))
 371                          {
 372                              // The custom BBCode requires second-pass pattern replacements
 373                              $this->bbcode_cache[$bbcode_id] = array(
 374                                  'preg' => array($rowset[$bbcode_id]['second_pass_match'] => $bbcode_tpl)
 375                              );
 376                          }
 377                          else
 378                          {
 379                              $this->bbcode_cache[$bbcode_id] = array(
 380                                  'str' => array($rowset[$bbcode_id]['second_pass_match'] => $bbcode_tpl)
 381                              );
 382                          }
 383                      }
 384                      else
 385                      {
 386                          $this->bbcode_cache[$bbcode_id] = false;
 387                      }
 388                  break;
 389              }
 390          }
 391      }
 392   
 393      /**
 394      * Return bbcode template
 395      */
 396      function bbcode_tpl($tpl_name, $bbcode_id = -1, $skip_bitfield_check = false)
 397      {
 398          static $bbcode_hardtpl = array();
 399          if (empty($bbcode_hardtpl))
 400          {
 401              global $user;
 402   
 403              $bbcode_hardtpl = array(
 404                  'b_open'    => '<span style="font-weight: bold">',
 405                  'b_close'    => '</span>',
 406                  'i_open'    => '<span style="font-style: italic">',
 407                  'i_close'    => '</span>',
 408                  'u_open'    => '<span style="text-decoration: underline">',
 409                  'u_close'    => '</span>',
 410                  'img'        => '<img src="$1" class="postimage" alt="' . $user->lang['IMAGE'] . '" />',
 411                  'size'        => '<span style="font-size: $1%; line-height: normal">$2</span>',
 412                  'color'        => '<span style="color: $1">$2</span>',
 413                  'email'        => '<a href="mailto:$1">$2</a>'
 414              );
 415          }
 416   
 417          if ($bbcode_id != -1 && !$skip_bitfield_check && !$this->template_bitfield->get($bbcode_id))
 418          {
 419              return (isset($bbcode_hardtpl[$tpl_name])) ? $bbcode_hardtpl[$tpl_name] : false;
 420          }
 421   
 422          if (empty($this->bbcode_template))
 423          {
 424              if (($tpl = file_get_contents($this->template_filename)) === false)
 425              {
 426                  trigger_error('Could not load bbcode template', E_USER_ERROR);
 427              }
 428   
 429              // replace \ with \\ and then ' with \'.
 430              $tpl = str_replace('\\', '\\\\', $tpl);
 431              $tpl = str_replace("'", "\'", $tpl);
 432   
 433              // strip newlines and indent
 434              $tpl = preg_replace("/\n[\n\r\s\t]*/", '', $tpl);
 435   
 436              // Turn template blocks into PHP assignment statements for the values of $bbcode_tpl..
 437              $this->bbcode_template = array();
 438   
 439              $matches = preg_match_all('#<!-- BEGIN (.*?) -->(.*?)<!-- END (?:.*?) -->#', $tpl, $match);
 440   
 441              for ($i = 0; $i < $matches; $i++)
 442              {
 443                  if (empty($match[1][$i]))
 444                  {
 445                      continue;
 446                  }
 447   
 448                  $this->bbcode_template[$match[1][$i]] = $this->bbcode_tpl_replace($match[1][$i], $match[2][$i]);
 449              }
 450          }
 451   
 452          return (isset($this->bbcode_template[$tpl_name])) ? $this->bbcode_template[$tpl_name] : ((isset($bbcode_hardtpl[$tpl_name])) ? $bbcode_hardtpl[$tpl_name] : false);
 453      }
 454   
 455      /**
 456      * Return bbcode template replacement
 457      */
 458      function bbcode_tpl_replace($tpl_name, $tpl)
 459      {
 460          global $user;
 461   
 462          static $replacements = array(
 463              'quote_username_open'    => array('{USERNAME}'    => '$1'),
 464              'color'                    => array('{COLOR}'        => '$1', '{TEXT}'            => '$2'),
 465              'size'                    => array('{SIZE}'        => '$1', '{TEXT}'            => '$2'),
 466              'img'                    => array('{URL}'        => '$1'),
 467              'flash'                    => array('{WIDTH}'        => '$1', '{HEIGHT}'            => '$2', '{URL}'    => '$3'),
 468              'url'                    => array('{URL}'        => '$1', '{DESCRIPTION}'    => '$2'),
 469              'email'                    => array('{EMAIL}'        => '$1', '{DESCRIPTION}'    => '$2')
 470          );
 471   
 472          $tpl = preg_replace('/{L_([A-Z0-9_]+)}/e', "(!empty(\$user->lang['\$1'])) ? \$user->lang['\$1'] : ucwords(strtolower(str_replace('_', ' ', '\$1')))", $tpl);
 473   
 474          if (!empty($replacements[$tpl_name]))
 475          {
 476              $tpl = strtr($tpl, $replacements[$tpl_name]);
 477          }
 478   
 479          return trim($tpl);
 480      }
 481   
 482      /**
 483      * Second parse list bbcode
 484      */
 485      function bbcode_list($type)
 486      {
 487          if ($type == '')
 488          {
 489              $tpl = 'ulist_open_default';
 490              $type = 'default';
 491          }
 492          else if ($type == 'i')
 493          {
 494              $tpl = 'olist_open';
 495              $type = 'lower-roman';
 496          }
 497          else if ($type == 'I')
 498          {
 499              $tpl = 'olist_open';
 500              $type = 'upper-roman';
 501          }
 502          else if (preg_match('#^(disc|circle|square)$#i', $type))
 503          {
 504              $tpl = 'ulist_open';
 505              $type = strtolower($type);
 506          }
 507          else if (preg_match('#^[a-z]$#', $type))
 508          {
 509              $tpl = 'olist_open';
 510              $type = 'lower-alpha';
 511          }
 512          else if (preg_match('#[A-Z]#', $type))
 513          {
 514              $tpl = 'olist_open';
 515              $type = 'upper-alpha';
 516          }
 517          else if (is_numeric($type))
 518          {
 519              $tpl = 'olist_open';
 520              $type = 'decimal';
 521          }
 522          else
 523          {
 524              $tpl = 'olist_open';
 525              $type = 'decimal';
 526          }
 527   
 528          return str_replace('{LIST_TYPE}', $type, $this->bbcode_tpl($tpl));
 529      }
 530   
 531      /**
 532      * Second parse quote tag
 533      */
 534      function bbcode_second_pass_quote($username, $quote)
 535      {
 536          // when using the /e modifier, preg_replace slashes double-quotes but does not
 537          // seem to slash anything else
 538          $quote = str_replace('\"', '"', $quote);
 539          $username = str_replace('\"', '"', $username);
 540   
 541          // remove newline at the beginning
 542          if ($quote == "\n")
 543          {
 544              $quote = '';
 545          }
 546   
 547          $quote = (($username) ? str_replace('$1', $username, $this->bbcode_tpl('quote_username_open')) : $this->bbcode_tpl('quote_open')) . $quote;
 548   
 549          return $quote;
 550      }
 551   
 552      /**
 553      * Second parse code tag
 554      */
 555      function bbcode_second_pass_code($type, $code)
 556      {
 557          // when using the /e modifier, preg_replace slashes double-quotes but does not
 558          // seem to slash anything else
 559          $code = str_replace('\"', '"', $code);
 560   
 561          switch ($type)
 562          {
 563              case 'php':
 564                  // Not the english way, but valid because of hardcoded syntax highlighting
 565                  if (strpos($code, '<span class="syntaxdefault"><br /></span>') === 0)
 566                  {
 567                      $code = substr($code, 41);
 568                  }
 569   
 570              // no break;
 571   
 572              default:
 573                  $code = str_replace("\t", '&nbsp; &nbsp;', $code);
 574                  $code = str_replace('  ', '&nbsp; ', $code);
 575                  $code = str_replace('  ', ' &nbsp;', $code);
 576                  $code = str_replace("\n ", "\n&nbsp;", $code);
 577   
 578                  // keep space at the beginning
 579                  if (!empty($code) && $code[0] == ' ')
 580                  {
 581                      $code = '&nbsp;' . substr($code, 1);
 582                  }
 583   
 584                  // remove newline at the beginning
 585                  if (!empty($code) && $code[0] == "\n")
 586                  {
 587                      $code = substr($code, 1);
 588                  }
 589              break;
 590          }
 591   
 592          $code = $this->bbcode_tpl('code_open') . $code . $this->bbcode_tpl('code_close');
 593   
 594          return $code;
 595      }
 596  }
 597   

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Zuletzt modifiziert: 09.10.2024, 12:51 - Dateigröße: 16.11 KiB

bbcode.php


 001  <?php
 002  /**
 003  *
 004  * This file is part of the phpBB Forum Software package.
 005  *
 006  * @copyright (c) phpBB Limited <https://www.phpbb.com>
 007  * @license GNU General Public License, version 2 (GPL-2.0)
 008  *
 009  * For full copyright and license information, please see
 010  * the docs/CREDITS.txt file.
 011  *
 012  */
 013   
 014  /**
 015  * @ignore
 016  */
 017  if (!defined('IN_PHPBB'))
 018  {
 019      exit;
 020  }
 021   
 022  /**
 023  * BBCode class
 024  */
 025  class bbcode
 026  {
 027      var $bbcode_uid = '';
 028      var $bbcode_bitfield = '';
 029      var $bbcode_cache = array();
 030      var $bbcode_template = array();
 031   
 032      var $bbcodes = array();
 033   
 034      var $template_bitfield;
 035   
 036      /**
 037      * Constructor
 038      * Init bbcode cache entries if bitfield is specified
 039      */
 040      function bbcode($bitfield = '')
 041      {
 042          if ($bitfield)
 043          {
 044              $this->bbcode_bitfield = $bitfield;
 045              $this->bbcode_cache_init();
 046          }
 047      }
 048   
 049      /**
 050      * Second pass bbcodes
 051      */
 052      function bbcode_second_pass(&$message, $bbcode_uid = '', $bbcode_bitfield = false)
 053      {
 054          if ($bbcode_uid)
 055          {
 056              $this->bbcode_uid = $bbcode_uid;
 057          }
 058   
 059          if ($bbcode_bitfield !== false)
 060          {
 061              $this->bbcode_bitfield = $bbcode_bitfield;
 062   
 063              // Init those added with a new bbcode_bitfield (already stored codes will not get parsed again)
 064              $this->bbcode_cache_init();
 065          }
 066   
 067          if (!$this->bbcode_bitfield)
 068          {
 069              // Remove the uid from tags that have not been transformed into HTML
 070              if ($this->bbcode_uid)
 071              {
 072                  $message = str_replace(':' . $this->bbcode_uid, '', $message);
 073              }
 074   
 075              return;
 076          }
 077   
 078          $str = array('search' => array(), 'replace' => array());
 079          $preg = array('search' => array(), 'replace' => array());
 080   
 081          $bitfield = new bitfield($this->bbcode_bitfield);
 082          $bbcodes_set = $bitfield->get_all_set();
 083   
 084          $undid_bbcode_specialchars = false;
 085          foreach ($bbcodes_set as $bbcode_id)
 086          {
 087              if (!empty($this->bbcode_cache[$bbcode_id]))
 088              {
 089                  foreach ($this->bbcode_cache[$bbcode_id] as $type => $array)
 090                  {
 091                      foreach ($array as $search => $replace)
 092                      {
 093                          ${$type}['search'][] = str_replace('$uid', $this->bbcode_uid, $search);
 094                          ${$type}['replace'][] = $replace;
 095                      }
 096   
 097                      if (sizeof($str['search']))
 098                      {
 099                          $message = str_replace($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('&#58;', '&#46;'), 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_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          foreach ($bbcode_ids as $bbcode_id)
 186          {
 187              switch ($bbcode_id)
 188              {
 189                  case 0:
 190                      $this->bbcode_cache[$bbcode_id] = array(
 191                          'str' => array(
 192                              '[/quote:$uid]'    => $this->bbcode_tpl('quote_close', $bbcode_id)
 193                          ),
 194                          'preg' => array(
 195                              '#\[quote(?:=&quot;(.*?)&quot;)?:$uid\]((?!\[quote(?:=&quot;.*?&quot;)?:$uid\]).)?#ise'    => "\$this->bbcode_second_pass_quote('\$1', '\$2')"
 196                          )
 197                      );
 198                  break;
 199   
 200                  case 1:
 201                      $this->bbcode_cache[$bbcode_id] = array(
 202                          'str' => array(
 203                              '[b:$uid]'    => $this->bbcode_tpl('b_open', $bbcode_id),
 204                              '[/b:$uid]'    => $this->bbcode_tpl('b_close', $bbcode_id),
 205                          )
 206                      );
 207                  break;
 208   
 209                  case 2:
 210                      $this->bbcode_cache[$bbcode_id] = array(
 211                          'str' => array(
 212                              '[i:$uid]'    => $this->bbcode_tpl('i_open', $bbcode_id),
 213                              '[/i:$uid]'    => $this->bbcode_tpl('i_close', $bbcode_id),
 214                          )
 215                      );
 216                  break;
 217   
 218                  case 3:
 219                      $this->bbcode_cache[$bbcode_id] = array(
 220                          'preg' => array(
 221                              '#\[url:$uid\]((.*?))\[/url:$uid\]#s'            => $this->bbcode_tpl('url', $bbcode_id),
 222                              '#\[url=([^\[]+?):$uid\](.*?)\[/url:$uid\]#s'    => $this->bbcode_tpl('url', $bbcode_id),
 223                          )
 224                      );
 225                  break;
 226   
 227                  case 4:
 228                      if ($user->optionget('viewimg'))
 229                      {
 230                          $this->bbcode_cache[$bbcode_id] = array(
 231                              'preg' => array(
 232                                  '#\[img:$uid\](.*?)\[/img:$uid\]#s'        => $this->bbcode_tpl('img', $bbcode_id),
 233                              )
 234                          );
 235                      }
 236                      else
 237                      {
 238                          $this->bbcode_cache[$bbcode_id] = array(
 239                              'preg' => array(
 240                                  '#\[img:$uid\](.*?)\[/img:$uid\]#s'        => str_replace('$2', '[ img ]', $this->bbcode_tpl('url', $bbcode_id, true)),
 241                              )
 242                          );
 243                      }
 244                  break;
 245   
 246                  case 5:
 247                      $this->bbcode_cache[$bbcode_id] = array(
 248                          'preg' => array(
 249                              '#\[size=([\-\+]?\d+):$uid\](.*?)\[/size:$uid\]#s'    => $this->bbcode_tpl('size', $bbcode_id),
 250                          )
 251                      );
 252                  break;
 253   
 254                  case 6:
 255                      $this->bbcode_cache[$bbcode_id] = array(
 256                          'preg' => array(
 257                              '!\[color=(#[0-9a-f]{3}|#[0-9a-f]{6}|[a-z\-]+):$uid\](.*?)\[/color:$uid\]!is'    => $this->bbcode_tpl('color', $bbcode_id),
 258                          )
 259                      );
 260                  break;
 261   
 262                  case 7:
 263                      $this->bbcode_cache[$bbcode_id] = array(
 264                          'str' => array(
 265                              '[u:$uid]'    => $this->bbcode_tpl('u_open', $bbcode_id),
 266                              '[/u:$uid]'    => $this->bbcode_tpl('u_close', $bbcode_id),
 267                          )
 268                      );
 269                  break;
 270   
 271                  case 8:
 272                      $this->bbcode_cache[$bbcode_id] = array(
 273                          'preg' => array(
 274                              '#\[code(?:=([a-z]+))?:$uid\](.*?)\[/code:$uid\]#ise'    => "\$this->bbcode_second_pass_code('\$1', '\$2')",
 275                          )
 276                      );
 277                  break;
 278   
 279                  case 9:
 280                      $this->bbcode_cache[$bbcode_id] = array(
 281                          'preg' => array(
 282                              '#(\[\/?(list|\*):[mou]?:?$uid\])[\n]{1}#'    => "\$1",
 283                              '#(\[list=([^\[]+):$uid\])[\n]{1}#'            => "\$1",
 284                              '#\[list=([^\[]+):$uid\]#e'                    => "\$this->bbcode_list('\$1')",
 285                          ),
 286                          'str' => array(
 287                              '[list:$uid]'        => $this->bbcode_tpl('ulist_open_default', $bbcode_id),
 288                              '[/list:u:$uid]'    => $this->bbcode_tpl('ulist_close', $bbcode_id),
 289                              '[/list:o:$uid]'    => $this->bbcode_tpl('olist_close', $bbcode_id),
 290                              '[*:$uid]'            => $this->bbcode_tpl('listitem', $bbcode_id),
 291                              '[/*:$uid]'            => $this->bbcode_tpl('listitem_close', $bbcode_id),
 292                              '[/*:m:$uid]'        => $this->bbcode_tpl('listitem_close', $bbcode_id)
 293                          ),
 294                      );
 295                  break;
 296   
 297                  case 10:
 298                      $this->bbcode_cache[$bbcode_id] = array(
 299                          'preg' => array(
 300                              '#\[email:$uid\]((.*?))\[/email:$uid\]#is'            => $this->bbcode_tpl('email', $bbcode_id),
 301                              '#\[email=([^\[]+):$uid\](.*?)\[/email:$uid\]#is'    => $this->bbcode_tpl('email', $bbcode_id)
 302                          )
 303                      );
 304                  break;
 305   
 306                  case 11:
 307                      if ($user->optionget('viewflash'))
 308                      {
 309                          $this->bbcode_cache[$bbcode_id] = array(
 310                              'preg' => array(
 311                                  '#\[flash=([0-9]+),([0-9]+):$uid\](.*?)\[/flash:$uid\]#'    => $this->bbcode_tpl('flash', $bbcode_id),
 312                              )
 313                          );
 314                      }
 315                      else
 316                      {
 317                          $this->bbcode_cache[$bbcode_id] = array(
 318                              'preg' => array(
 319                                  '#\[flash=([0-9]+),([0-9]+):$uid\](.*?)\[/flash:$uid\]#'    => str_replace('$1', '$3', str_replace('$2', '[ flash ]', $this->bbcode_tpl('url', $bbcode_id, true)))
 320                              )
 321                          );
 322                      }
 323                  break;
 324   
 325                  case 12:
 326                      $this->bbcode_cache[$bbcode_id] = array(
 327                          'str'    => array(
 328                              '[/attachment:$uid]'    => $this->bbcode_tpl('inline_attachment_close', $bbcode_id)
 329                          ),
 330                          'preg'    => array(
 331                              '#\[attachment=([0-9]+):$uid\]#'    => $this->bbcode_tpl('inline_attachment_open', $bbcode_id)
 332                          )
 333                      );
 334                  break;
 335   
 336                  default:
 337                      if (isset($rowset[$bbcode_id]))
 338                      {
 339                          if ($this->template_bitfield->get($bbcode_id))
 340                          {
 341                              // The bbcode requires a custom template to be loaded
 342                              if (!$bbcode_tpl = $this->bbcode_tpl($rowset[$bbcode_id]['bbcode_tag'], $bbcode_id))
 343                              {
 344                                  // For some reason, the required template seems not to be available, use the default template
 345                                  $bbcode_tpl = (!empty($rowset[$bbcode_id]['second_pass_replace'])) ? $rowset[$bbcode_id]['second_pass_replace'] : $rowset[$bbcode_id]['bbcode_tpl'];
 346                              }
 347                              else
 348                              {
 349                                  // In order to use templates with custom bbcodes we need
 350                                  // to replace all {VARS} to corresponding backreferences
 351                                  // Note that backreferences are numbered from bbcode_match
 352                                  if (preg_match_all('/\{(URL|LOCAL_URL|EMAIL|TEXT|SIMPLETEXT|INTTEXT|IDENTIFIER|COLOR|NUMBER)[0-9]*\}/', $rowset[$bbcode_id]['bbcode_match'], $m))
 353                                  {
 354                                      foreach ($m[0] as $i => $tok)
 355                                      {
 356                                          $bbcode_tpl = str_replace($tok, '$' . ($i + 1), $bbcode_tpl);
 357                                      }
 358                                  }
 359                              }
 360                          }
 361                          else
 362                          {
 363                              // Default template
 364                              $bbcode_tpl = (!empty($rowset[$bbcode_id]['second_pass_replace'])) ? $rowset[$bbcode_id]['second_pass_replace'] : $rowset[$bbcode_id]['bbcode_tpl'];
 365                          }
 366   
 367                          // Replace {L_*} lang strings
 368                          $bbcode_tpl = preg_replace('/{L_([A-Z0-9_]+)}/e', "(!empty(\$user->lang['\$1'])) ? \$user->lang['\$1'] : ucwords(strtolower(str_replace('_', ' ', '\$1')))", $bbcode_tpl);
 369   
 370                          if (!empty($rowset[$bbcode_id]['second_pass_replace']))
 371                          {
 372                              // The custom BBCode requires second-pass pattern replacements
 373                              $this->bbcode_cache[$bbcode_id] = array(
 374                                  'preg' => array($rowset[$bbcode_id]['second_pass_match'] => $bbcode_tpl)
 375                              );
 376                          }
 377                          else
 378                          {
 379                              $this->bbcode_cache[$bbcode_id] = array(
 380                                  'str' => array($rowset[$bbcode_id]['second_pass_match'] => $bbcode_tpl)
 381                              );
 382                          }
 383                      }
 384                      else
 385                      {
 386                          $this->bbcode_cache[$bbcode_id] = false;
 387                      }
 388                  break;
 389              }
 390          }
 391      }
 392   
 393      /**
 394      * Return bbcode template
 395      */
 396      function bbcode_tpl($tpl_name, $bbcode_id = -1, $skip_bitfield_check = false)
 397      {
 398          static $bbcode_hardtpl = array();
 399          if (empty($bbcode_hardtpl))
 400          {
 401              global $user;
 402   
 403              $bbcode_hardtpl = array(
 404                  'b_open'    => '<span style="font-weight: bold">',
 405                  'b_close'    => '</span>',
 406                  'i_open'    => '<span style="font-style: italic">',
 407                  'i_close'    => '</span>',
 408                  'u_open'    => '<span style="text-decoration: underline">',
 409                  'u_close'    => '</span>',
 410                  'img'        => '<img src="$1" class="postimage" alt="' . $user->lang['IMAGE'] . '" />',
 411                  'size'        => '<span style="font-size: $1%; line-height: normal">$2</span>',
 412                  'color'        => '<span style="color: $1">$2</span>',
 413                  'email'        => '<a href="mailto:$1">$2</a>'
 414              );
 415          }
 416   
 417          if ($bbcode_id != -1 && !$skip_bitfield_check && !$this->template_bitfield->get($bbcode_id))
 418          {
 419              return (isset($bbcode_hardtpl[$tpl_name])) ? $bbcode_hardtpl[$tpl_name] : false;
 420          }
 421   
 422          if (empty($this->bbcode_template))
 423          {
 424              if (($tpl = file_get_contents($this->template_filename)) === false)
 425              {
 426                  trigger_error('Could not load bbcode template', E_USER_ERROR);
 427              }
 428   
 429              // replace \ with \\ and then ' with \'.
 430              $tpl = str_replace('\\', '\\\\', $tpl);
 431              $tpl = str_replace("'", "\'", $tpl);
 432   
 433              // strip newlines and indent
 434              $tpl = preg_replace("/\n[\n\r\s\t]*/", '', $tpl);
 435   
 436              // Turn template blocks into PHP assignment statements for the values of $bbcode_tpl..
 437              $this->bbcode_template = array();
 438   
 439              $matches = preg_match_all('#<!-- BEGIN (.*?) -->(.*?)<!-- END (?:.*?) -->#', $tpl, $match);
 440   
 441              for ($i = 0; $i < $matches; $i++)
 442              {
 443                  if (empty($match[1][$i]))
 444                  {
 445                      continue;
 446                  }
 447   
 448                  $this->bbcode_template[$match[1][$i]] = $this->bbcode_tpl_replace($match[1][$i], $match[2][$i]);
 449              }
 450          }
 451   
 452          return (isset($this->bbcode_template[$tpl_name])) ? $this->bbcode_template[$tpl_name] : ((isset($bbcode_hardtpl[$tpl_name])) ? $bbcode_hardtpl[$tpl_name] : false);
 453      }
 454   
 455      /**
 456      * Return bbcode template replacement
 457      */
 458      function bbcode_tpl_replace($tpl_name, $tpl)
 459      {
 460          global $user;
 461   
 462          static $replacements = array(
 463              'quote_username_open'    => array('{USERNAME}'    => '$1'),
 464              'color'                    => array('{COLOR}'        => '$1', '{TEXT}'            => '$2'),
 465              'size'                    => array('{SIZE}'        => '$1', '{TEXT}'            => '$2'),
 466              'img'                    => array('{URL}'        => '$1'),
 467              'flash'                    => array('{WIDTH}'        => '$1', '{HEIGHT}'            => '$2', '{URL}'    => '$3'),
 468              'url'                    => array('{URL}'        => '$1', '{DESCRIPTION}'    => '$2'),
 469              'email'                    => array('{EMAIL}'        => '$1', '{DESCRIPTION}'    => '$2')
 470          );
 471   
 472          $tpl = preg_replace('/{L_([A-Z0-9_]+)}/e', "(!empty(\$user->lang['\$1'])) ? \$user->lang['\$1'] : ucwords(strtolower(str_replace('_', ' ', '\$1')))", $tpl);
 473   
 474          if (!empty($replacements[$tpl_name]))
 475          {
 476              $tpl = strtr($tpl, $replacements[$tpl_name]);
 477          }
 478   
 479          return trim($tpl);
 480      }
 481   
 482      /**
 483      * Second parse list bbcode
 484      */
 485      function bbcode_list($type)
 486      {
 487          if ($type == '')
 488          {
 489              $tpl = 'ulist_open_default';
 490              $type = 'default';
 491          }
 492          else if ($type == 'i')
 493          {
 494              $tpl = 'olist_open';
 495              $type = 'lower-roman';
 496          }
 497          else if ($type == 'I')
 498          {
 499              $tpl = 'olist_open';
 500              $type = 'upper-roman';
 501          }
 502          else if (preg_match('#^(disc|circle|square)$#i', $type))
 503          {
 504              $tpl = 'ulist_open';
 505              $type = strtolower($type);
 506          }
 507          else if (preg_match('#^[a-z]$#', $type))
 508          {
 509              $tpl = 'olist_open';
 510              $type = 'lower-alpha';
 511          }
 512          else if (preg_match('#[A-Z]#', $type))
 513          {
 514              $tpl = 'olist_open';
 515              $type = 'upper-alpha';
 516          }
 517          else if (is_numeric($type))
 518          {
 519              $tpl = 'olist_open';
 520              $type = 'decimal';
 521          }
 522          else
 523          {
 524              $tpl = 'olist_open';
 525              $type = 'decimal';
 526          }
 527   
 528          return str_replace('{LIST_TYPE}', $type, $this->bbcode_tpl($tpl));
 529      }
 530   
 531      /**
 532      * Second parse quote tag
 533      */
 534      function bbcode_second_pass_quote($username, $quote)
 535      {
 536          // when using the /e modifier, preg_replace slashes double-quotes but does not
 537          // seem to slash anything else
 538          $quote = str_replace('\"', '"', $quote);
 539          $username = str_replace('\"', '"', $username);
 540   
 541          // remove newline at the beginning
 542          if ($quote == "\n")
 543          {
 544              $quote = '';
 545          }
 546   
 547          $quote = (($username) ? str_replace('$1', $username, $this->bbcode_tpl('quote_username_open')) : $this->bbcode_tpl('quote_open')) . $quote;
 548   
 549          return $quote;
 550      }
 551   
 552      /**
 553      * Second parse code tag
 554      */
 555      function bbcode_second_pass_code($type, $code)
 556      {
 557          // when using the /e modifier, preg_replace slashes double-quotes but does not
 558          // seem to slash anything else
 559          $code = str_replace('\"', '"', $code);
 560   
 561          switch ($type)
 562          {
 563              case 'php':
 564                  // Not the english way, but valid because of hardcoded syntax highlighting
 565                  if (strpos($code, '<span class="syntaxdefault"><br /></span>') === 0)
 566                  {
 567                      $code = substr($code, 41);
 568                  }
 569   
 570              // no break;
 571   
 572              default:
 573                  $code = str_replace("\t", '&nbsp; &nbsp;', $code);
 574                  $code = str_replace('  ', '&nbsp; ', $code);
 575                  $code = str_replace('  ', ' &nbsp;', $code);
 576                  $code = str_replace("\n ", "\n&nbsp;", $code);
 577   
 578                  // keep space at the beginning
 579                  if (!empty($code) && $code[0] == ' ')
 580                  {
 581                      $code = '&nbsp;' . substr($code, 1);
 582                  }
 583   
 584                  // remove newline at the beginning
 585                  if (!empty($code) && $code[0] == "\n")
 586                  {
 587                      $code = substr($code, 1);
 588                  }
 589              break;
 590          }
 591   
 592          $code = $this->bbcode_tpl('code_open') . $code . $this->bbcode_tpl('code_close');
 593   
 594          return $code;
 595      }
 596  }
 597   

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