Verzeichnisstruktur phpBB-3.2.0


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06.01.2017

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bbcode.php

Zuletzt modifiziert: 09.10.2024, 12:51 - Dateigröße: 19.11 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                              $undid_bbcode_specialchars = true;
 111                          }
 112   
 113                          foreach ($preg['search'] as $key => $search)
 114                          {
 115                              if (is_callable($preg['replace'][$key]))
 116                              {
 117                                  $message = preg_replace_callback($search, $preg['replace'][$key], $message);
 118                              }
 119                              else
 120                              {
 121                                  $message = preg_replace($search, $preg['replace'][$key], $message);
 122                              }
 123                          }
 124   
 125                          $preg = array('search' => array(), 'replace' => array());
 126                      }
 127                  }
 128              }
 129          }
 130   
 131          // Remove the uid from tags that have not been transformed into HTML
 132          $message = str_replace(':' . $this->bbcode_uid, '', $message);
 133      }
 134   
 135      /**
 136      * Init bbcode cache
 137      *
 138      * requires: $this->bbcode_bitfield
 139      * sets: $this->bbcode_cache with bbcode templates needed for bbcode_bitfield
 140      */
 141      function bbcode_cache_init()
 142      {
 143          global $user, $phpbb_dispatcher, $phpbb_extension_manager, $phpbb_container, $phpbb_filesystem;
 144   
 145          if (empty($this->template_filename))
 146          {
 147              $this->template_bitfield = new bitfield($user->style['bbcode_bitfield']);
 148   
 149              $template = new \phpbb\template\twig\twig(
 150                  $phpbb_container->get('path_helper'),
 151                  $phpbb_container->get('config'),
 152                  new \phpbb\template\context(),
 153                  new \phpbb\template\twig\environment(
 154                      $phpbb_container->get('config'),
 155                      $phpbb_container->get('filesystem'),
 156                      $phpbb_container->get('path_helper'),
 157                      $phpbb_container->getParameter('core.cache_dir'),
 158                      $phpbb_container->get('ext.manager'),
 159                      new \phpbb\template\twig\loader(
 160                          $phpbb_filesystem
 161                      )
 162                  ),
 163                  $phpbb_container->getParameter('core.cache_dir'),
 164                  $phpbb_container->get('user'),
 165                  $phpbb_container->get('template.twig.extensions.collection'),
 166                  $phpbb_extension_manager
 167              );
 168   
 169              $template->set_style();
 170              $template->set_filenames(array('bbcode.html' => 'bbcode.html'));
 171              $this->template_filename = $template->get_source_file_for_handle('bbcode.html');
 172          }
 173   
 174          $bbcode_ids = $rowset = $sql = array();
 175   
 176          $bitfield = new bitfield($this->bbcode_bitfield);
 177          $bbcodes_set = $bitfield->get_all_set();
 178   
 179          foreach ($bbcodes_set as $bbcode_id)
 180          {
 181              if (isset($this->bbcode_cache[$bbcode_id]))
 182              {
 183                  // do not try to re-cache it if it's already in
 184                  continue;
 185              }
 186              $bbcode_ids[] = $bbcode_id;
 187   
 188              if ($bbcode_id > NUM_CORE_BBCODES)
 189              {
 190                  $sql[] = $bbcode_id;
 191              }
 192          }
 193   
 194          if (sizeof($sql))
 195          {
 196              global $db;
 197   
 198              $sql = 'SELECT *
 199                  FROM ' . BBCODES_TABLE . '
 200                  WHERE ' . $db->sql_in_set('bbcode_id', $sql);
 201              $result = $db->sql_query($sql, 3600);
 202   
 203              while ($row = $db->sql_fetchrow($result))
 204              {
 205                  // To circumvent replacing newlines with <br /> for the generated html,
 206                  // we use carriage returns here. They are later changed back to newlines
 207                  $row['bbcode_tpl'] = str_replace("\n", "\r", $row['bbcode_tpl']);
 208                  $row['second_pass_replace'] = str_replace("\n", "\r", $row['second_pass_replace']);
 209   
 210                  $rowset[$row['bbcode_id']] = $row;
 211              }
 212              $db->sql_freeresult($result);
 213          }
 214   
 215          // To perform custom second pass in extension, use $this->bbcode_second_pass_by_extension()
 216          // method which accepts variable number of parameters
 217          foreach ($bbcode_ids as $bbcode_id)
 218          {
 219              switch ($bbcode_id)
 220              {
 221                  case BBCODE_ID_QUOTE:
 222                      $this->bbcode_cache[$bbcode_id] = array(
 223                          'str' => array(
 224                              '[/quote:$uid]'    => $this->bbcode_tpl('quote_close', $bbcode_id)
 225                          ),
 226                          'preg' => array(
 227                              '#\[quote(?:=&quot;(.*?)&quot;)?:$uid\]((?!\[quote(?:=&quot;.*?&quot;)?:$uid\]).)?#is'    => function ($match) {
 228                                  if (!isset($match[2]))
 229                                  {
 230                                      $match[2] = '';
 231                                  }
 232   
 233                                  return $this->bbcode_second_pass_quote($match[1], $match[2]);
 234                              },
 235                          )
 236                      );
 237                  break;
 238   
 239                  case BBCODE_ID_B:
 240                      $this->bbcode_cache[$bbcode_id] = array(
 241                          'str' => array(
 242                              '[b:$uid]'    => $this->bbcode_tpl('b_open', $bbcode_id),
 243                              '[/b:$uid]'    => $this->bbcode_tpl('b_close', $bbcode_id),
 244                          )
 245                      );
 246                  break;
 247   
 248                  case BBCODE_ID_I:
 249                      $this->bbcode_cache[$bbcode_id] = array(
 250                          'str' => array(
 251                              '[i:$uid]'    => $this->bbcode_tpl('i_open', $bbcode_id),
 252                              '[/i:$uid]'    => $this->bbcode_tpl('i_close', $bbcode_id),
 253                          )
 254                      );
 255                  break;
 256   
 257                  case BBCODE_ID_URL:
 258                      $this->bbcode_cache[$bbcode_id] = array(
 259                          'preg' => array(
 260                              '#\[url:$uid\]((.*?))\[/url:$uid\]#s'            => $this->bbcode_tpl('url', $bbcode_id),
 261                              '#\[url=([^\[]+?):$uid\](.*?)\[/url:$uid\]#s'    => $this->bbcode_tpl('url', $bbcode_id),
 262                          )
 263                      );
 264                  break;
 265   
 266                  case BBCODE_ID_IMG:
 267                      if ($user->optionget('viewimg'))
 268                      {
 269                          $this->bbcode_cache[$bbcode_id] = array(
 270                              'preg' => array(
 271                                  '#\[img:$uid\](.*?)\[/img:$uid\]#s'        => $this->bbcode_tpl('img', $bbcode_id),
 272                              )
 273                          );
 274                      }
 275                      else
 276                      {
 277                          $this->bbcode_cache[$bbcode_id] = array(
 278                              'preg' => array(
 279                                  '#\[img:$uid\](.*?)\[/img:$uid\]#s'        => str_replace('$2', '[ img ]', $this->bbcode_tpl('url', $bbcode_id, true)),
 280                              )
 281                          );
 282                      }
 283                  break;
 284   
 285                  case BBCODE_ID_SIZE:
 286                      $this->bbcode_cache[$bbcode_id] = array(
 287                          'preg' => array(
 288                              '#\[size=([\-\+]?\d+):$uid\](.*?)\[/size:$uid\]#s'    => $this->bbcode_tpl('size', $bbcode_id),
 289                          )
 290                      );
 291                  break;
 292   
 293                  case BBCODE_ID_COLOR:
 294                      $this->bbcode_cache[$bbcode_id] = array(
 295                          'preg' => array(
 296                              '!\[color=(#[0-9a-f]{3}|#[0-9a-f]{6}|[a-z\-]+):$uid\](.*?)\[/color:$uid\]!is'    => $this->bbcode_tpl('color', $bbcode_id),
 297                          )
 298                      );
 299                  break;
 300   
 301                  case BBCODE_ID_U:
 302                      $this->bbcode_cache[$bbcode_id] = array(
 303                          'str' => array(
 304                              '[u:$uid]'    => $this->bbcode_tpl('u_open', $bbcode_id),
 305                              '[/u:$uid]'    => $this->bbcode_tpl('u_close', $bbcode_id),
 306                          )
 307                      );
 308                  break;
 309   
 310                  case BBCODE_ID_CODE:
 311                      $this->bbcode_cache[$bbcode_id] = array(
 312                          'preg' => array(
 313                              '#\[code(?:=([a-z]+))?:$uid\](.*?)\[/code:$uid\]#is'    => function ($match) {
 314                                  return $this->bbcode_second_pass_code($match[1], $match[2]);
 315                              },
 316                          )
 317                      );
 318                  break;
 319   
 320                  case BBCODE_ID_LIST:
 321                      $this->bbcode_cache[$bbcode_id] = array(
 322                          'preg' => array(
 323                              '#(\[\/?(list|\*):[mou]?:?$uid\])[\n]{1}#'    => "\$1",
 324                              '#(\[list=([^\[]+):$uid\])[\n]{1}#'            => "\$1",
 325                              '#\[list=([^\[]+):$uid\]#'                    => function ($match) {
 326                                  return $this->bbcode_list($match[1]);
 327                              },
 328                          ),
 329                          'str' => array(
 330                              '[list:$uid]'        => $this->bbcode_tpl('ulist_open_default', $bbcode_id),
 331                              '[/list:u:$uid]'    => $this->bbcode_tpl('ulist_close', $bbcode_id),
 332                              '[/list:o:$uid]'    => $this->bbcode_tpl('olist_close', $bbcode_id),
 333                              '[*:$uid]'            => $this->bbcode_tpl('listitem', $bbcode_id),
 334                              '[/*:$uid]'            => $this->bbcode_tpl('listitem_close', $bbcode_id),
 335                              '[/*:m:$uid]'        => $this->bbcode_tpl('listitem_close', $bbcode_id)
 336                          ),
 337                      );
 338                  break;
 339   
 340                  case BBCODE_ID_EMAIL:
 341                      $this->bbcode_cache[$bbcode_id] = array(
 342                          'preg' => array(
 343                              '#\[email:$uid\]((.*?))\[/email:$uid\]#is'            => $this->bbcode_tpl('email', $bbcode_id),
 344                              '#\[email=([^\[]+):$uid\](.*?)\[/email:$uid\]#is'    => $this->bbcode_tpl('email', $bbcode_id)
 345                          )
 346                      );
 347                  break;
 348   
 349                  case BBCODE_ID_FLASH:
 350                      if ($user->optionget('viewflash'))
 351                      {
 352                          $this->bbcode_cache[$bbcode_id] = array(
 353                              'preg' => array(
 354                                  '#\[flash=([0-9]+),([0-9]+):$uid\](.*?)\[/flash:$uid\]#'    => $this->bbcode_tpl('flash', $bbcode_id),
 355                              )
 356                          );
 357                      }
 358                      else
 359                      {
 360                          $this->bbcode_cache[$bbcode_id] = array(
 361                              'preg' => array(
 362                                  '#\[flash=([0-9]+),([0-9]+):$uid\](.*?)\[/flash:$uid\]#'    => str_replace('$1', '$3', str_replace('$2', '[ flash ]', $this->bbcode_tpl('url', $bbcode_id, true)))
 363                              )
 364                          );
 365                      }
 366                  break;
 367   
 368                  case BBCODE_ID_ATTACH:
 369                      $this->bbcode_cache[$bbcode_id] = array(
 370                          'str'    => array(
 371                              '[/attachment:$uid]'    => $this->bbcode_tpl('inline_attachment_close', $bbcode_id)
 372                          ),
 373                          'preg'    => array(
 374                              '#\[attachment=([0-9]+):$uid\]#'    => $this->bbcode_tpl('inline_attachment_open', $bbcode_id)
 375                          )
 376                      );
 377                  break;
 378   
 379                  default:
 380                      if (isset($rowset[$bbcode_id]))
 381                      {
 382                          if ($this->template_bitfield->get($bbcode_id))
 383                          {
 384                              // The bbcode requires a custom template to be loaded
 385                              if (!$bbcode_tpl = $this->bbcode_tpl($rowset[$bbcode_id]['bbcode_tag'], $bbcode_id))
 386                              {
 387                                  // For some reason, the required template seems not to be available, use the default template
 388                                  $bbcode_tpl = (!empty($rowset[$bbcode_id]['second_pass_replace'])) ? $rowset[$bbcode_id]['second_pass_replace'] : $rowset[$bbcode_id]['bbcode_tpl'];
 389                              }
 390                              else
 391                              {
 392                                  // In order to use templates with custom bbcodes we need
 393                                  // to replace all {VARS} to corresponding backreferences
 394                                  // Note that backreferences are numbered from bbcode_match
 395                                  if (preg_match_all('/\{(URL|LOCAL_URL|EMAIL|TEXT|SIMPLETEXT|INTTEXT|IDENTIFIER|COLOR|NUMBER)[0-9]*\}/', $rowset[$bbcode_id]['bbcode_match'], $m))
 396                                  {
 397                                      foreach ($m[0] as $i => $tok)
 398                                      {
 399                                          $bbcode_tpl = str_replace($tok, '$' . ($i + 1), $bbcode_tpl);
 400                                      }
 401                                  }
 402                              }
 403                          }
 404                          else
 405                          {
 406                              // Default template
 407                              $bbcode_tpl = (!empty($rowset[$bbcode_id]['second_pass_replace'])) ? $rowset[$bbcode_id]['second_pass_replace'] : $rowset[$bbcode_id]['bbcode_tpl'];
 408                          }
 409   
 410                          // Replace {L_*} lang strings
 411                          $bbcode_tpl = preg_replace_callback('/{L_([A-Z0-9_]+)}/', function ($match) use ($user) {
 412                              return (!empty($user->lang[$match[1]])) ? $user->lang($match[1]) : ucwords(strtolower(str_replace('_', ' ', $match[1])));
 413                          }, $bbcode_tpl);
 414   
 415                          if (!empty($rowset[$bbcode_id]['second_pass_replace']))
 416                          {
 417                              // The custom BBCode requires second-pass pattern replacements
 418                              $this->bbcode_cache[$bbcode_id] = array(
 419                                  'preg' => array($rowset[$bbcode_id]['second_pass_match'] => $bbcode_tpl)
 420                              );
 421                          }
 422                          else
 423                          {
 424                              $this->bbcode_cache[$bbcode_id] = array(
 425                                  'str' => array($rowset[$bbcode_id]['second_pass_match'] => $bbcode_tpl)
 426                              );
 427                          }
 428                      }
 429                      else
 430                      {
 431                          $this->bbcode_cache[$bbcode_id] = false;
 432                      }
 433                  break;
 434              }
 435          }
 436   
 437          $bbcode_cache = $this->bbcode_cache;
 438          $bbcode_bitfield = $this->bbcode_bitfield;
 439          $bbcode_uid = $this->bbcode_uid;
 440   
 441          /**
 442          * Use this event to modify the bbcode_cache
 443          *
 444          * @event core.bbcode_cache_init_end
 445          * @var    array    bbcode_cache        The array of cached search and replace patterns of bbcodes
 446          * @var    string    bbcode_bitfield        The bbcode bitfield
 447          * @var    string    bbcode_uid            The bbcode uid
 448          * @since 3.1.3-RC1
 449          */
 450          $vars = array('bbcode_cache', 'bbcode_bitfield', 'bbcode_uid');
 451          extract($phpbb_dispatcher->trigger_event('core.bbcode_cache_init_end', compact($vars)));
 452   
 453          $this->bbcode_cache = $bbcode_cache;
 454          $this->bbcode_bitfield = $bbcode_bitfield;
 455          $this->bbcode_uid = $bbcode_uid;
 456      }
 457   
 458      /**
 459      * Return bbcode template
 460      */
 461      function bbcode_tpl($tpl_name, $bbcode_id = -1, $skip_bitfield_check = false)
 462      {
 463          static $bbcode_hardtpl = array();
 464          if (empty($bbcode_hardtpl))
 465          {
 466              global $user;
 467   
 468              $bbcode_hardtpl = array(
 469                  'b_open'    => '<span style="font-weight: bold">',
 470                  'b_close'    => '</span>',
 471                  'i_open'    => '<span style="font-style: italic">',
 472                  'i_close'    => '</span>',
 473                  'u_open'    => '<span style="text-decoration: underline">',
 474                  'u_close'    => '</span>',
 475                  'img'        => '<img src="$1" class="postimage" alt="' . $user->lang['IMAGE'] . '" />',
 476                  'size'        => '<span style="font-size: $1%; line-height: normal">$2</span>',
 477                  'color'        => '<span style="color: $1">$2</span>',
 478                  'email'        => '<a href="mailto:$1">$2</a>'
 479              );
 480          }
 481   
 482          if ($bbcode_id != -1 && !$skip_bitfield_check && !$this->template_bitfield->get($bbcode_id))
 483          {
 484              return (isset($bbcode_hardtpl[$tpl_name])) ? $bbcode_hardtpl[$tpl_name] : false;
 485          }
 486   
 487          if (empty($this->bbcode_template))
 488          {
 489              if (($tpl = file_get_contents($this->template_filename)) === false)
 490              {
 491                  trigger_error('Could not load bbcode template', E_USER_ERROR);
 492              }
 493   
 494              // replace \ with \\ and then ' with \'.
 495              $tpl = str_replace('\\', '\\\\', $tpl);
 496              $tpl = str_replace("'", "\'", $tpl);
 497   
 498              // strip newlines and indent
 499              $tpl = preg_replace("/\n[\n\r\s\t]*/", '', $tpl);
 500   
 501              // Turn template blocks into PHP assignment statements for the values of $bbcode_tpl..
 502              $this->bbcode_template = array();
 503   
 504              $matches = preg_match_all('#<!-- BEGIN (.*?) -->(.*?)<!-- END (?:.*?) -->#', $tpl, $match);
 505   
 506              for ($i = 0; $i < $matches; $i++)
 507              {
 508                  if (empty($match[1][$i]))
 509                  {
 510                      continue;
 511                  }
 512   
 513                  $this->bbcode_template[$match[1][$i]] = $this->bbcode_tpl_replace($match[1][$i], $match[2][$i]);
 514              }
 515          }
 516   
 517          return (isset($this->bbcode_template[$tpl_name])) ? $this->bbcode_template[$tpl_name] : ((isset($bbcode_hardtpl[$tpl_name])) ? $bbcode_hardtpl[$tpl_name] : false);
 518      }
 519   
 520      /**
 521      * Return bbcode template replacement
 522      */
 523      function bbcode_tpl_replace($tpl_name, $tpl)
 524      {
 525          global $user;
 526   
 527          static $replacements = array(
 528              'quote_username_open'    => array('{USERNAME}'    => '$1'),
 529              'color'                    => array('{COLOR}'        => '$1', '{TEXT}'            => '$2'),
 530              'size'                    => array('{SIZE}'        => '$1', '{TEXT}'            => '$2'),
 531              'img'                    => array('{URL}'        => '$1'),
 532              'flash'                    => array('{WIDTH}'        => '$1', '{HEIGHT}'            => '$2', '{URL}'    => '$3'),
 533              'url'                    => array('{URL}'        => '$1', '{DESCRIPTION}'    => '$2'),
 534              'email'                    => array('{EMAIL}'        => '$1', '{DESCRIPTION}'    => '$2')
 535          );
 536   
 537          $tpl = preg_replace_callback('/{L_([A-Z0-9_]+)}/', function ($match) use ($user) {
 538              return (!empty($user->lang[$match[1]])) ? $user->lang($match[1]) : ucwords(strtolower(str_replace('_', ' ', $match[1])));
 539          }, $tpl);
 540   
 541          if (!empty($replacements[$tpl_name]))
 542          {
 543              $tpl = strtr($tpl, $replacements[$tpl_name]);
 544          }
 545   
 546          return trim($tpl);
 547      }
 548   
 549      /**
 550      * Second parse list bbcode
 551      */
 552      function bbcode_list($type)
 553      {
 554          if ($type == '')
 555          {
 556              $tpl = 'ulist_open_default';
 557              $type = 'default';
 558          }
 559          else if ($type == 'i')
 560          {
 561              $tpl = 'olist_open';
 562              $type = 'lower-roman';
 563          }
 564          else if ($type == 'I')
 565          {
 566              $tpl = 'olist_open';
 567              $type = 'upper-roman';
 568          }
 569          else if (preg_match('#^(disc|circle|square)$#i', $type))
 570          {
 571              $tpl = 'ulist_open';
 572              $type = strtolower($type);
 573          }
 574          else if (preg_match('#^[a-z]$#', $type))
 575          {
 576              $tpl = 'olist_open';
 577              $type = 'lower-alpha';
 578          }
 579          else if (preg_match('#[A-Z]#', $type))
 580          {
 581              $tpl = 'olist_open';
 582              $type = 'upper-alpha';
 583          }
 584          else if (is_numeric($type))
 585          {
 586              $tpl = 'olist_open';
 587              $type = 'decimal';
 588          }
 589          else
 590          {
 591              $tpl = 'olist_open';
 592              $type = 'decimal';
 593          }
 594   
 595          return str_replace('{LIST_TYPE}', $type, $this->bbcode_tpl($tpl));
 596      }
 597   
 598      /**
 599      * Second parse quote tag
 600      */
 601      function bbcode_second_pass_quote($username, $quote)
 602      {
 603          // when using the /e modifier, preg_replace slashes double-quotes but does not
 604          // seem to slash anything else
 605          $quote = str_replace('\"', '"', $quote);
 606          $username = str_replace('\"', '"', $username);
 607   
 608          // remove newline at the beginning
 609          if ($quote == "\n")
 610          {
 611              $quote = '';
 612          }
 613   
 614          $quote = (($username) ? str_replace('$1', $username, $this->bbcode_tpl('quote_username_open')) : $this->bbcode_tpl('quote_open')) . $quote;
 615   
 616          return $quote;
 617      }
 618   
 619      /**
 620      * Second parse code tag
 621      */
 622      function bbcode_second_pass_code($type, $code)
 623      {
 624          // when using the /e modifier, preg_replace slashes double-quotes but does not
 625          // seem to slash anything else
 626          $code = str_replace('\"', '"', $code);
 627   
 628          switch ($type)
 629          {
 630              case 'php':
 631                  // Not the english way, but valid because of hardcoded syntax highlighting
 632                  if (strpos($code, '<span class="syntaxdefault"><br /></span>') === 0)
 633                  {
 634                      $code = substr($code, 41);
 635                  }
 636   
 637              // no break;
 638   
 639              default:
 640                  $code = str_replace("\t", '&nbsp; &nbsp;', $code);
 641                  $code = str_replace('  ', '&nbsp; ', $code);
 642                  $code = str_replace('  ', ' &nbsp;', $code);
 643                  $code = str_replace("\n ", "\n&nbsp;", $code);
 644   
 645                  // keep space at the beginning
 646                  if (!empty($code) && $code[0] == ' ')
 647                  {
 648                      $code = '&nbsp;' . substr($code, 1);
 649                  }
 650   
 651                  // remove newline at the beginning
 652                  if (!empty($code) && $code[0] == "\n")
 653                  {
 654                      $code = substr($code, 1);
 655                  }
 656              break;
 657          }
 658   
 659          $code = $this->bbcode_tpl('code_open') . $code . $this->bbcode_tpl('code_close');
 660   
 661          return $code;
 662      }
 663   
 664      /**
 665      * Function to perform custom bbcode second pass by extensions
 666      * can be used to assign bbcode pattern replacement
 667      * Example: '#\[list=([^\[]+):$uid\]#e'    => "\$this->bbcode_second_pass_by_extension('\$1')"
 668      *
 669      * Accepts variable number of parameters
 670      *
 671      * @return mixed Second pass result
 672      */
 673      function bbcode_second_pass_by_extension()
 674      {
 675          global $phpbb_dispatcher;
 676   
 677          $return = false;
 678          $params_array = func_get_args();
 679   
 680          /**
 681          * Event to perform bbcode second pass with
 682          * the custom validating methods provided by extensions
 683          *
 684          * @event core.bbcode_second_pass_by_extension
 685          * @var array    params_array    Array with the function parameters
 686          * @var mixed    return            Second pass result to return
 687          *
 688          * @since 3.1.5-RC1
 689          */
 690          $vars = array('params_array', 'return');
 691          extract($phpbb_dispatcher->trigger_event('core.bbcode_second_pass_by_extension', compact($vars)));
 692   
 693          return $return;
 694      }
 695  }
 696   

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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                              $undid_bbcode_specialchars = true;
 111                          }
 112   
 113                          foreach ($preg['search'] as $key => $search)
 114                          {
 115                              if (is_callable($preg['replace'][$key]))
 116                              {
 117                                  $message = preg_replace_callback($search, $preg['replace'][$key], $message);
 118                              }
 119                              else
 120                              {
 121                                  $message = preg_replace($search, $preg['replace'][$key], $message);
 122                              }
 123                          }
 124   
 125                          $preg = array('search' => array(), 'replace' => array());
 126                      }
 127                  }
 128              }
 129          }
 130   
 131          // Remove the uid from tags that have not been transformed into HTML
 132          $message = str_replace(':' . $this->bbcode_uid, '', $message);
 133      }
 134   
 135      /**
 136      * Init bbcode cache
 137      *
 138      * requires: $this->bbcode_bitfield
 139      * sets: $this->bbcode_cache with bbcode templates needed for bbcode_bitfield
 140      */
 141      function bbcode_cache_init()
 142      {
 143          global $user, $phpbb_dispatcher, $phpbb_extension_manager, $phpbb_container, $phpbb_filesystem;
 144   
 145          if (empty($this->template_filename))
 146          {
 147              $this->template_bitfield = new bitfield($user->style['bbcode_bitfield']);
 148   
 149              $template = new \phpbb\template\twig\twig(
 150                  $phpbb_container->get('path_helper'),
 151                  $phpbb_container->get('config'),
 152                  new \phpbb\template\context(),
 153                  new \phpbb\template\twig\environment(
 154                      $phpbb_container->get('config'),
 155                      $phpbb_container->get('filesystem'),
 156                      $phpbb_container->get('path_helper'),
 157                      $phpbb_container->getParameter('core.cache_dir'),
 158                      $phpbb_container->get('ext.manager'),
 159                      new \phpbb\template\twig\loader(
 160                          $phpbb_filesystem
 161                      )
 162                  ),
 163                  $phpbb_container->getParameter('core.cache_dir'),
 164                  $phpbb_container->get('user'),
 165                  $phpbb_container->get('template.twig.extensions.collection'),
 166                  $phpbb_extension_manager
 167              );
 168   
 169              $template->set_style();
 170              $template->set_filenames(array('bbcode.html' => 'bbcode.html'));
 171              $this->template_filename = $template->get_source_file_for_handle('bbcode.html');
 172          }
 173   
 174          $bbcode_ids = $rowset = $sql = array();
 175   
 176          $bitfield = new bitfield($this->bbcode_bitfield);
 177          $bbcodes_set = $bitfield->get_all_set();
 178   
 179          foreach ($bbcodes_set as $bbcode_id)
 180          {
 181              if (isset($this->bbcode_cache[$bbcode_id]))
 182              {
 183                  // do not try to re-cache it if it's already in
 184                  continue;
 185              }
 186              $bbcode_ids[] = $bbcode_id;
 187   
 188              if ($bbcode_id > NUM_CORE_BBCODES)
 189              {
 190                  $sql[] = $bbcode_id;
 191              }
 192          }
 193   
 194          if (sizeof($sql))
 195          {
 196              global $db;
 197   
 198              $sql = 'SELECT *
 199                  FROM ' . BBCODES_TABLE . '
 200                  WHERE ' . $db->sql_in_set('bbcode_id', $sql);
 201              $result = $db->sql_query($sql, 3600);
 202   
 203              while ($row = $db->sql_fetchrow($result))
 204              {
 205                  // To circumvent replacing newlines with <br /> for the generated html,
 206                  // we use carriage returns here. They are later changed back to newlines
 207                  $row['bbcode_tpl'] = str_replace("\n", "\r", $row['bbcode_tpl']);
 208                  $row['second_pass_replace'] = str_replace("\n", "\r", $row['second_pass_replace']);
 209   
 210                  $rowset[$row['bbcode_id']] = $row;
 211              }
 212              $db->sql_freeresult($result);
 213          }
 214   
 215          // To perform custom second pass in extension, use $this->bbcode_second_pass_by_extension()
 216          // method which accepts variable number of parameters
 217          foreach ($bbcode_ids as $bbcode_id)
 218          {
 219              switch ($bbcode_id)
 220              {
 221                  case BBCODE_ID_QUOTE:
 222                      $this->bbcode_cache[$bbcode_id] = array(
 223                          'str' => array(
 224                              '[/quote:$uid]'    => $this->bbcode_tpl('quote_close', $bbcode_id)
 225                          ),
 226                          'preg' => array(
 227                              '#\[quote(?:=&quot;(.*?)&quot;)?:$uid\]((?!\[quote(?:=&quot;.*?&quot;)?:$uid\]).)?#is'    => function ($match) {
 228                                  if (!isset($match[2]))
 229                                  {
 230                                      $match[2] = '';
 231                                  }
 232   
 233                                  return $this->bbcode_second_pass_quote($match[1], $match[2]);
 234                              },
 235                          )
 236                      );
 237                  break;
 238   
 239                  case BBCODE_ID_B:
 240                      $this->bbcode_cache[$bbcode_id] = array(
 241                          'str' => array(
 242                              '[b:$uid]'    => $this->bbcode_tpl('b_open', $bbcode_id),
 243                              '[/b:$uid]'    => $this->bbcode_tpl('b_close', $bbcode_id),
 244                          )
 245                      );
 246                  break;
 247   
 248                  case BBCODE_ID_I:
 249                      $this->bbcode_cache[$bbcode_id] = array(
 250                          'str' => array(
 251                              '[i:$uid]'    => $this->bbcode_tpl('i_open', $bbcode_id),
 252                              '[/i:$uid]'    => $this->bbcode_tpl('i_close', $bbcode_id),
 253                          )
 254                      );
 255                  break;
 256   
 257                  case BBCODE_ID_URL:
 258                      $this->bbcode_cache[$bbcode_id] = array(
 259                          'preg' => array(
 260                              '#\[url:$uid\]((.*?))\[/url:$uid\]#s'            => $this->bbcode_tpl('url', $bbcode_id),
 261                              '#\[url=([^\[]+?):$uid\](.*?)\[/url:$uid\]#s'    => $this->bbcode_tpl('url', $bbcode_id),
 262                          )
 263                      );
 264                  break;
 265   
 266                  case BBCODE_ID_IMG:
 267                      if ($user->optionget('viewimg'))
 268                      {
 269                          $this->bbcode_cache[$bbcode_id] = array(
 270                              'preg' => array(
 271                                  '#\[img:$uid\](.*?)\[/img:$uid\]#s'        => $this->bbcode_tpl('img', $bbcode_id),
 272                              )
 273                          );
 274                      }
 275                      else
 276                      {
 277                          $this->bbcode_cache[$bbcode_id] = array(
 278                              'preg' => array(
 279                                  '#\[img:$uid\](.*?)\[/img:$uid\]#s'        => str_replace('$2', '[ img ]', $this->bbcode_tpl('url', $bbcode_id, true)),
 280                              )
 281                          );
 282                      }
 283                  break;
 284   
 285                  case BBCODE_ID_SIZE:
 286                      $this->bbcode_cache[$bbcode_id] = array(
 287                          'preg' => array(
 288                              '#\[size=([\-\+]?\d+):$uid\](.*?)\[/size:$uid\]#s'    => $this->bbcode_tpl('size', $bbcode_id),
 289                          )
 290                      );
 291                  break;
 292   
 293                  case BBCODE_ID_COLOR:
 294                      $this->bbcode_cache[$bbcode_id] = array(
 295                          'preg' => array(
 296                              '!\[color=(#[0-9a-f]{3}|#[0-9a-f]{6}|[a-z\-]+):$uid\](.*?)\[/color:$uid\]!is'    => $this->bbcode_tpl('color', $bbcode_id),
 297                          )
 298                      );
 299                  break;
 300   
 301                  case BBCODE_ID_U:
 302                      $this->bbcode_cache[$bbcode_id] = array(
 303                          'str' => array(
 304                              '[u:$uid]'    => $this->bbcode_tpl('u_open', $bbcode_id),
 305                              '[/u:$uid]'    => $this->bbcode_tpl('u_close', $bbcode_id),
 306                          )
 307                      );
 308                  break;
 309   
 310                  case BBCODE_ID_CODE:
 311                      $this->bbcode_cache[$bbcode_id] = array(
 312                          'preg' => array(
 313                              '#\[code(?:=([a-z]+))?:$uid\](.*?)\[/code:$uid\]#is'    => function ($match) {
 314                                  return $this->bbcode_second_pass_code($match[1], $match[2]);
 315                              },
 316                          )
 317                      );
 318                  break;
 319   
 320                  case BBCODE_ID_LIST:
 321                      $this->bbcode_cache[$bbcode_id] = array(
 322                          'preg' => array(
 323                              '#(\[\/?(list|\*):[mou]?:?$uid\])[\n]{1}#'    => "\$1",
 324                              '#(\[list=([^\[]+):$uid\])[\n]{1}#'            => "\$1",
 325                              '#\[list=([^\[]+):$uid\]#'                    => function ($match) {
 326                                  return $this->bbcode_list($match[1]);
 327                              },
 328                          ),
 329                          'str' => array(
 330                              '[list:$uid]'        => $this->bbcode_tpl('ulist_open_default', $bbcode_id),
 331                              '[/list:u:$uid]'    => $this->bbcode_tpl('ulist_close', $bbcode_id),
 332                              '[/list:o:$uid]'    => $this->bbcode_tpl('olist_close', $bbcode_id),
 333                              '[*:$uid]'            => $this->bbcode_tpl('listitem', $bbcode_id),
 334                              '[/*:$uid]'            => $this->bbcode_tpl('listitem_close', $bbcode_id),
 335                              '[/*:m:$uid]'        => $this->bbcode_tpl('listitem_close', $bbcode_id)
 336                          ),
 337                      );
 338                  break;
 339   
 340                  case BBCODE_ID_EMAIL:
 341                      $this->bbcode_cache[$bbcode_id] = array(
 342                          'preg' => array(
 343                              '#\[email:$uid\]((.*?))\[/email:$uid\]#is'            => $this->bbcode_tpl('email', $bbcode_id),
 344                              '#\[email=([^\[]+):$uid\](.*?)\[/email:$uid\]#is'    => $this->bbcode_tpl('email', $bbcode_id)
 345                          )
 346                      );
 347                  break;
 348   
 349                  case BBCODE_ID_FLASH:
 350                      if ($user->optionget('viewflash'))
 351                      {
 352                          $this->bbcode_cache[$bbcode_id] = array(
 353                              'preg' => array(
 354                                  '#\[flash=([0-9]+),([0-9]+):$uid\](.*?)\[/flash:$uid\]#'    => $this->bbcode_tpl('flash', $bbcode_id),
 355                              )
 356                          );
 357                      }
 358                      else
 359                      {
 360                          $this->bbcode_cache[$bbcode_id] = array(
 361                              'preg' => array(
 362                                  '#\[flash=([0-9]+),([0-9]+):$uid\](.*?)\[/flash:$uid\]#'    => str_replace('$1', '$3', str_replace('$2', '[ flash ]', $this->bbcode_tpl('url', $bbcode_id, true)))
 363                              )
 364                          );
 365                      }
 366                  break;
 367   
 368                  case BBCODE_ID_ATTACH:
 369                      $this->bbcode_cache[$bbcode_id] = array(
 370                          'str'    => array(
 371                              '[/attachment:$uid]'    => $this->bbcode_tpl('inline_attachment_close', $bbcode_id)
 372                          ),
 373                          'preg'    => array(
 374                              '#\[attachment=([0-9]+):$uid\]#'    => $this->bbcode_tpl('inline_attachment_open', $bbcode_id)
 375                          )
 376                      );
 377                  break;
 378   
 379                  default:
 380                      if (isset($rowset[$bbcode_id]))
 381                      {
 382                          if ($this->template_bitfield->get($bbcode_id))
 383                          {
 384                              // The bbcode requires a custom template to be loaded
 385                              if (!$bbcode_tpl = $this->bbcode_tpl($rowset[$bbcode_id]['bbcode_tag'], $bbcode_id))
 386                              {
 387                                  // For some reason, the required template seems not to be available, use the default template
 388                                  $bbcode_tpl = (!empty($rowset[$bbcode_id]['second_pass_replace'])) ? $rowset[$bbcode_id]['second_pass_replace'] : $rowset[$bbcode_id]['bbcode_tpl'];
 389                              }
 390                              else
 391                              {
 392                                  // In order to use templates with custom bbcodes we need
 393                                  // to replace all {VARS} to corresponding backreferences
 394                                  // Note that backreferences are numbered from bbcode_match
 395                                  if (preg_match_all('/\{(URL|LOCAL_URL|EMAIL|TEXT|SIMPLETEXT|INTTEXT|IDENTIFIER|COLOR|NUMBER)[0-9]*\}/', $rowset[$bbcode_id]['bbcode_match'], $m))
 396                                  {
 397                                      foreach ($m[0] as $i => $tok)
 398                                      {
 399                                          $bbcode_tpl = str_replace($tok, '$' . ($i + 1), $bbcode_tpl);
 400                                      }
 401                                  }
 402                              }
 403                          }
 404                          else
 405                          {
 406                              // Default template
 407                              $bbcode_tpl = (!empty($rowset[$bbcode_id]['second_pass_replace'])) ? $rowset[$bbcode_id]['second_pass_replace'] : $rowset[$bbcode_id]['bbcode_tpl'];
 408                          }
 409   
 410                          // Replace {L_*} lang strings
 411                          $bbcode_tpl = preg_replace_callback('/{L_([A-Z0-9_]+)}/', function ($match) use ($user) {
 412                              return (!empty($user->lang[$match[1]])) ? $user->lang($match[1]) : ucwords(strtolower(str_replace('_', ' ', $match[1])));
 413                          }, $bbcode_tpl);
 414   
 415                          if (!empty($rowset[$bbcode_id]['second_pass_replace']))
 416                          {
 417                              // The custom BBCode requires second-pass pattern replacements
 418                              $this->bbcode_cache[$bbcode_id] = array(
 419                                  'preg' => array($rowset[$bbcode_id]['second_pass_match'] => $bbcode_tpl)
 420                              );
 421                          }
 422                          else
 423                          {
 424                              $this->bbcode_cache[$bbcode_id] = array(
 425                                  'str' => array($rowset[$bbcode_id]['second_pass_match'] => $bbcode_tpl)
 426                              );
 427                          }
 428                      }
 429                      else
 430                      {
 431                          $this->bbcode_cache[$bbcode_id] = false;
 432                      }
 433                  break;
 434              }
 435          }
 436   
 437          $bbcode_cache = $this->bbcode_cache;
 438          $bbcode_bitfield = $this->bbcode_bitfield;
 439          $bbcode_uid = $this->bbcode_uid;
 440   
 441          /**
 442          * Use this event to modify the bbcode_cache
 443          *
 444          * @event core.bbcode_cache_init_end
 445          * @var    array    bbcode_cache        The array of cached search and replace patterns of bbcodes
 446          * @var    string    bbcode_bitfield        The bbcode bitfield
 447          * @var    string    bbcode_uid            The bbcode uid
 448          * @since 3.1.3-RC1
 449          */
 450          $vars = array('bbcode_cache', 'bbcode_bitfield', 'bbcode_uid');
 451          extract($phpbb_dispatcher->trigger_event('core.bbcode_cache_init_end', compact($vars)));
 452   
 453          $this->bbcode_cache = $bbcode_cache;
 454          $this->bbcode_bitfield = $bbcode_bitfield;
 455          $this->bbcode_uid = $bbcode_uid;
 456      }
 457   
 458      /**
 459      * Return bbcode template
 460      */
 461      function bbcode_tpl($tpl_name, $bbcode_id = -1, $skip_bitfield_check = false)
 462      {
 463          static $bbcode_hardtpl = array();
 464          if (empty($bbcode_hardtpl))
 465          {
 466              global $user;
 467   
 468              $bbcode_hardtpl = array(
 469                  'b_open'    => '<span style="font-weight: bold">',
 470                  'b_close'    => '</span>',
 471                  'i_open'    => '<span style="font-style: italic">',
 472                  'i_close'    => '</span>',
 473                  'u_open'    => '<span style="text-decoration: underline">',
 474                  'u_close'    => '</span>',
 475                  'img'        => '<img src="$1" class="postimage" alt="' . $user->lang['IMAGE'] . '" />',
 476                  'size'        => '<span style="font-size: $1%; line-height: normal">$2</span>',
 477                  'color'        => '<span style="color: $1">$2</span>',
 478                  'email'        => '<a href="mailto:$1">$2</a>'
 479              );
 480          }
 481   
 482          if ($bbcode_id != -1 && !$skip_bitfield_check && !$this->template_bitfield->get($bbcode_id))
 483          {
 484              return (isset($bbcode_hardtpl[$tpl_name])) ? $bbcode_hardtpl[$tpl_name] : false;
 485          }
 486   
 487          if (empty($this->bbcode_template))
 488          {
 489              if (($tpl = file_get_contents($this->template_filename)) === false)
 490              {
 491                  trigger_error('Could not load bbcode template', E_USER_ERROR);
 492              }
 493   
 494              // replace \ with \\ and then ' with \'.
 495              $tpl = str_replace('\\', '\\\\', $tpl);
 496              $tpl = str_replace("'", "\'", $tpl);
 497   
 498              // strip newlines and indent
 499              $tpl = preg_replace("/\n[\n\r\s\t]*/", '', $tpl);
 500   
 501              // Turn template blocks into PHP assignment statements for the values of $bbcode_tpl..
 502              $this->bbcode_template = array();
 503   
 504              $matches = preg_match_all('#<!-- BEGIN (.*?) -->(.*?)<!-- END (?:.*?) -->#', $tpl, $match);
 505   
 506              for ($i = 0; $i < $matches; $i++)
 507              {
 508                  if (empty($match[1][$i]))
 509                  {
 510                      continue;
 511                  }
 512   
 513                  $this->bbcode_template[$match[1][$i]] = $this->bbcode_tpl_replace($match[1][$i], $match[2][$i]);
 514              }
 515          }
 516   
 517          return (isset($this->bbcode_template[$tpl_name])) ? $this->bbcode_template[$tpl_name] : ((isset($bbcode_hardtpl[$tpl_name])) ? $bbcode_hardtpl[$tpl_name] : false);
 518      }
 519   
 520      /**
 521      * Return bbcode template replacement
 522      */
 523      function bbcode_tpl_replace($tpl_name, $tpl)
 524      {
 525          global $user;
 526   
 527          static $replacements = array(
 528              'quote_username_open'    => array('{USERNAME}'    => '$1'),
 529              'color'                    => array('{COLOR}'        => '$1', '{TEXT}'            => '$2'),
 530              'size'                    => array('{SIZE}'        => '$1', '{TEXT}'            => '$2'),
 531              'img'                    => array('{URL}'        => '$1'),
 532              'flash'                    => array('{WIDTH}'        => '$1', '{HEIGHT}'            => '$2', '{URL}'    => '$3'),
 533              'url'                    => array('{URL}'        => '$1', '{DESCRIPTION}'    => '$2'),
 534              'email'                    => array('{EMAIL}'        => '$1', '{DESCRIPTION}'    => '$2')
 535          );
 536   
 537          $tpl = preg_replace_callback('/{L_([A-Z0-9_]+)}/', function ($match) use ($user) {
 538              return (!empty($user->lang[$match[1]])) ? $user->lang($match[1]) : ucwords(strtolower(str_replace('_', ' ', $match[1])));
 539          }, $tpl);
 540   
 541          if (!empty($replacements[$tpl_name]))
 542          {
 543              $tpl = strtr($tpl, $replacements[$tpl_name]);
 544          }
 545   
 546          return trim($tpl);
 547      }
 548   
 549      /**
 550      * Second parse list bbcode
 551      */
 552      function bbcode_list($type)
 553      {
 554          if ($type == '')
 555          {
 556              $tpl = 'ulist_open_default';
 557              $type = 'default';
 558          }
 559          else if ($type == 'i')
 560          {
 561              $tpl = 'olist_open';
 562              $type = 'lower-roman';
 563          }
 564          else if ($type == 'I')
 565          {
 566              $tpl = 'olist_open';
 567              $type = 'upper-roman';
 568          }
 569          else if (preg_match('#^(disc|circle|square)$#i', $type))
 570          {
 571              $tpl = 'ulist_open';
 572              $type = strtolower($type);
 573          }
 574          else if (preg_match('#^[a-z]$#', $type))
 575          {
 576              $tpl = 'olist_open';
 577              $type = 'lower-alpha';
 578          }
 579          else if (preg_match('#[A-Z]#', $type))
 580          {
 581              $tpl = 'olist_open';
 582              $type = 'upper-alpha';
 583          }
 584          else if (is_numeric($type))
 585          {
 586              $tpl = 'olist_open';
 587              $type = 'decimal';
 588          }
 589          else
 590          {
 591              $tpl = 'olist_open';
 592              $type = 'decimal';
 593          }
 594   
 595          return str_replace('{LIST_TYPE}', $type, $this->bbcode_tpl($tpl));
 596      }
 597   
 598      /**
 599      * Second parse quote tag
 600      */
 601      function bbcode_second_pass_quote($username, $quote)
 602      {
 603          // when using the /e modifier, preg_replace slashes double-quotes but does not
 604          // seem to slash anything else
 605          $quote = str_replace('\"', '"', $quote);
 606          $username = str_replace('\"', '"', $username);
 607   
 608          // remove newline at the beginning
 609          if ($quote == "\n")
 610          {
 611              $quote = '';
 612          }
 613   
 614          $quote = (($username) ? str_replace('$1', $username, $this->bbcode_tpl('quote_username_open')) : $this->bbcode_tpl('quote_open')) . $quote;
 615   
 616          return $quote;
 617      }
 618   
 619      /**
 620      * Second parse code tag
 621      */
 622      function bbcode_second_pass_code($type, $code)
 623      {
 624          // when using the /e modifier, preg_replace slashes double-quotes but does not
 625          // seem to slash anything else
 626          $code = str_replace('\"', '"', $code);
 627   
 628          switch ($type)
 629          {
 630              case 'php':
 631                  // Not the english way, but valid because of hardcoded syntax highlighting
 632                  if (strpos($code, '<span class="syntaxdefault"><br /></span>') === 0)
 633                  {
 634                      $code = substr($code, 41);
 635                  }
 636   
 637              // no break;
 638   
 639              default:
 640                  $code = str_replace("\t", '&nbsp; &nbsp;', $code);
 641                  $code = str_replace('  ', '&nbsp; ', $code);
 642                  $code = str_replace('  ', ' &nbsp;', $code);
 643                  $code = str_replace("\n ", "\n&nbsp;", $code);
 644   
 645                  // keep space at the beginning
 646                  if (!empty($code) && $code[0] == ' ')
 647                  {
 648                      $code = '&nbsp;' . substr($code, 1);
 649                  }
 650   
 651                  // remove newline at the beginning
 652                  if (!empty($code) && $code[0] == "\n")
 653                  {
 654                      $code = substr($code, 1);
 655                  }
 656              break;
 657          }
 658   
 659          $code = $this->bbcode_tpl('code_open') . $code . $this->bbcode_tpl('code_close');
 660   
 661          return $code;
 662      }
 663   
 664      /**
 665      * Function to perform custom bbcode second pass by extensions
 666      * can be used to assign bbcode pattern replacement
 667      * Example: '#\[list=([^\[]+):$uid\]#e'    => "\$this->bbcode_second_pass_by_extension('\$1')"
 668      *
 669      * Accepts variable number of parameters
 670      *
 671      * @return mixed Second pass result
 672      */
 673      function bbcode_second_pass_by_extension()
 674      {
 675          global $phpbb_dispatcher;
 676   
 677          $return = false;
 678          $params_array = func_get_args();
 679   
 680          /**
 681          * Event to perform bbcode second pass with
 682          * the custom validating methods provided by extensions
 683          *
 684          * @event core.bbcode_second_pass_by_extension
 685          * @var array    params_array    Array with the function parameters
 686          * @var mixed    return            Second pass result to return
 687          *
 688          * @since 3.1.5-RC1
 689          */
 690          $vars = array('params_array', 'return');
 691          extract($phpbb_dispatcher->trigger_event('core.bbcode_second_pass_by_extension', compact($vars)));
 692   
 693          return $return;
 694      }
 695  }
 696   

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