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- 27.10.2014
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acp_bbcodes.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 class acp_bbcodes
023 {
024 var $u_action;
025
026 function main($id, $mode)
027 {
028 global $db, $user, $auth, $template, $cache, $request, $phpbb_dispatcher;
029 global $config, $phpbb_root_path, $phpbb_admin_path, $phpEx;
030
031 $user->add_lang('acp/posting');
032
033 // Set up general vars
034 $action = request_var('action', '');
035 $bbcode_id = request_var('bbcode', 0);
036
037 $this->tpl_name = 'acp_bbcodes';
038 $this->page_title = 'ACP_BBCODES';
039 $form_key = 'acp_bbcodes';
040
041 add_form_key($form_key);
042
043 // Set up mode-specific vars
044 switch ($action)
045 {
046 case 'add':
047 $bbcode_match = $bbcode_tpl = $bbcode_helpline = '';
048 $display_on_posting = 0;
049 break;
050
051 case 'edit':
052 $sql = 'SELECT bbcode_match, bbcode_tpl, display_on_posting, bbcode_helpline
053 FROM ' . BBCODES_TABLE . '
054 WHERE bbcode_id = ' . $bbcode_id;
055 $result = $db->sql_query($sql);
056 $row = $db->sql_fetchrow($result);
057 $db->sql_freeresult($result);
058
059 if (!$row)
060 {
061 trigger_error($user->lang['BBCODE_NOT_EXIST'] . adm_back_link($this->u_action), E_USER_WARNING);
062 }
063
064 $bbcode_match = $row['bbcode_match'];
065 $bbcode_tpl = htmlspecialchars($row['bbcode_tpl']);
066 $display_on_posting = $row['display_on_posting'];
067 $bbcode_helpline = $row['bbcode_helpline'];
068 break;
069
070 case 'modify':
071 $sql = 'SELECT bbcode_id, bbcode_tag
072 FROM ' . BBCODES_TABLE . '
073 WHERE bbcode_id = ' . $bbcode_id;
074 $result = $db->sql_query($sql);
075 $row = $db->sql_fetchrow($result);
076 $db->sql_freeresult($result);
077
078 if (!$row)
079 {
080 trigger_error($user->lang['BBCODE_NOT_EXIST'] . adm_back_link($this->u_action), E_USER_WARNING);
081 }
082
083 // No break here
084
085 case 'create':
086 $display_on_posting = request_var('display_on_posting', 0);
087
088 $bbcode_match = request_var('bbcode_match', '');
089 $bbcode_tpl = htmlspecialchars_decode(utf8_normalize_nfc(request_var('bbcode_tpl', '', true)));
090 $bbcode_helpline = utf8_normalize_nfc(request_var('bbcode_helpline', '', true));
091 break;
092 }
093
094 // Do major work
095 switch ($action)
096 {
097 case 'edit':
098 case 'add':
099
100 $tpl_ary = array(
101 'S_EDIT_BBCODE' => true,
102 'U_BACK' => $this->u_action,
103 'U_ACTION' => $this->u_action . '&action=' . (($action == 'add') ? 'create' : 'modify') . (($bbcode_id) ? "&bbcode=$bbcode_id" : ''),
104
105 'L_BBCODE_USAGE_EXPLAIN'=> sprintf($user->lang['BBCODE_USAGE_EXPLAIN'], '<a href="#down">', '</a>'),
106 'BBCODE_MATCH' => $bbcode_match,
107 'BBCODE_TPL' => $bbcode_tpl,
108 'BBCODE_HELPLINE' => $bbcode_helpline,
109 'DISPLAY_ON_POSTING' => $display_on_posting,
110 );
111
112 $bbcode_tokens = array('TEXT', 'SIMPLETEXT', 'INTTEXT', 'IDENTIFIER', 'NUMBER', 'EMAIL', 'URL', 'LOCAL_URL', 'RELATIVE_URL', 'COLOR');
113
114 /**
115 * Modify custom bbcode template data before we display the add/edit form
116 *
117 * @event core.acp_bbcodes_edit_add
118 * @var string action Type of the action: add|edit
119 * @var array tpl_ary Array with custom bbcode add/edit data
120 * @var int bbcode_id When editing: the bbcode id,
121 * when creating: 0
122 * @var array bbcode_tokens Array of bbcode tokens
123 * @since 3.1.0-a3
124 */
125 $vars = array('action', 'tpl_ary', 'bbcode_id', 'bbcode_tokens');
126 extract($phpbb_dispatcher->trigger_event('core.acp_bbcodes_edit_add', compact($vars)));
127
128 $template->assign_vars($tpl_ary);
129
130 foreach ($bbcode_tokens as $token)
131 {
132 $template->assign_block_vars('token', array(
133 'TOKEN' => '{' . $token . '}',
134 'EXPLAIN' => ($token === 'LOCAL_URL') ? $user->lang(array('tokens', $token), generate_board_url() . '/') : $user->lang(array('tokens', $token)),
135 ));
136 }
137
138 return;
139
140 break;
141
142 case 'modify':
143 case 'create':
144
145 $sql_ary = $hidden_fields = array();
146
147 /**
148 * Modify custom bbcode data before the modify/create action
149 *
150 * @event core.acp_bbcodes_modify_create
151 * @var string action Type of the action: modify|create
152 * @var array sql_ary Array with new bbcode data
153 * @var int bbcode_id When editing: the bbcode id,
154 * when creating: 0
155 * @var bool display_on_posting Display bbcode on posting form
156 * @var string bbcode_match The bbcode usage string to match
157 * @var string bbcode_tpl The bbcode HTML replacement string
158 * @var string bbcode_helpline The bbcode help line string
159 * @var array hidden_fields Array of hidden fields for use when
160 * submitting form when $warn_text is true
161 * @since 3.1.0-a3
162 */
163 $vars = array(
164 'action',
165 'sql_ary',
166 'bbcode_id',
167 'display_on_posting',
168 'bbcode_match',
169 'bbcode_tpl',
170 'bbcode_helpline',
171 'hidden_fields',
172 );
173 extract($phpbb_dispatcher->trigger_event('core.acp_bbcodes_modify_create', compact($vars)));
174
175 $warn_text = preg_match('%<[^>]*\{text[\d]*\}[^>]*>%i', $bbcode_tpl);
176 if (!$warn_text || confirm_box(true))
177 {
178 $data = $this->build_regexp($bbcode_match, $bbcode_tpl);
179
180 // Make sure the user didn't pick a "bad" name for the BBCode tag.
181 $hard_coded = array('code', 'quote', 'quote=', 'attachment', 'attachment=', 'b', 'i', 'url', 'url=', 'img', 'size', 'size=', 'color', 'color=', 'u', 'list', 'list=', 'email', 'email=', 'flash', 'flash=');
182
183 if (($action == 'modify' && strtolower($data['bbcode_tag']) !== strtolower($row['bbcode_tag'])) || ($action == 'create'))
184 {
185 $sql = 'SELECT 1 as test
186 FROM ' . BBCODES_TABLE . "
187 WHERE LOWER(bbcode_tag) = '" . $db->sql_escape(strtolower($data['bbcode_tag'])) . "'";
188 $result = $db->sql_query($sql);
189 $info = $db->sql_fetchrow($result);
190 $db->sql_freeresult($result);
191
192 // Grab the end, interrogate the last closing tag
193 if ($info['test'] === '1' || in_array(strtolower($data['bbcode_tag']), $hard_coded) || (preg_match('#\[/([^[]*)]$#', $bbcode_match, $regs) && in_array(strtolower($regs[1]), $hard_coded)))
194 {
195 trigger_error($user->lang['BBCODE_INVALID_TAG_NAME'] . adm_back_link($this->u_action), E_USER_WARNING);
196 }
197 }
198
199 if (substr($data['bbcode_tag'], -1) === '=')
200 {
201 $test = substr($data['bbcode_tag'], 0, -1);
202 }
203 else
204 {
205 $test = $data['bbcode_tag'];
206 }
207
208 if (!preg_match('%\\[' . $test . '[^]]*].*?\\[/' . $test . ']%s', $bbcode_match))
209 {
210 trigger_error($user->lang['BBCODE_OPEN_ENDED_TAG'] . adm_back_link($this->u_action), E_USER_WARNING);
211 }
212
213 if (strlen($data['bbcode_tag']) > 16)
214 {
215 trigger_error($user->lang['BBCODE_TAG_TOO_LONG'] . adm_back_link($this->u_action), E_USER_WARNING);
216 }
217
218 if (strlen($bbcode_match) > 4000)
219 {
220 trigger_error($user->lang['BBCODE_TAG_DEF_TOO_LONG'] . adm_back_link($this->u_action), E_USER_WARNING);
221 }
222
223 if (strlen($bbcode_helpline) > 255)
224 {
225 trigger_error($user->lang['BBCODE_HELPLINE_TOO_LONG'] . adm_back_link($this->u_action), E_USER_WARNING);
226 }
227
228 $sql_ary = array_merge($sql_ary, array(
229 'bbcode_tag' => $data['bbcode_tag'],
230 'bbcode_match' => $bbcode_match,
231 'bbcode_tpl' => $bbcode_tpl,
232 'display_on_posting' => $display_on_posting,
233 'bbcode_helpline' => $bbcode_helpline,
234 'first_pass_match' => $data['first_pass_match'],
235 'first_pass_replace' => $data['first_pass_replace'],
236 'second_pass_match' => $data['second_pass_match'],
237 'second_pass_replace' => $data['second_pass_replace']
238 ));
239
240 if ($action == 'create')
241 {
242 $sql = 'SELECT MAX(bbcode_id) as max_bbcode_id
243 FROM ' . BBCODES_TABLE;
244 $result = $db->sql_query($sql);
245 $row = $db->sql_fetchrow($result);
246 $db->sql_freeresult($result);
247
248 if ($row)
249 {
250 $bbcode_id = $row['max_bbcode_id'] + 1;
251
252 // Make sure it is greater than the core bbcode ids...
253 if ($bbcode_id <= NUM_CORE_BBCODES)
254 {
255 $bbcode_id = NUM_CORE_BBCODES + 1;
256 }
257 }
258 else
259 {
260 $bbcode_id = NUM_CORE_BBCODES + 1;
261 }
262
263 if ($bbcode_id > BBCODE_LIMIT)
264 {
265 trigger_error($user->lang['TOO_MANY_BBCODES'] . adm_back_link($this->u_action), E_USER_WARNING);
266 }
267
268 $sql_ary['bbcode_id'] = (int) $bbcode_id;
269
270 $db->sql_query('INSERT INTO ' . BBCODES_TABLE . $db->sql_build_array('INSERT', $sql_ary));
271 $cache->destroy('sql', BBCODES_TABLE);
272
273 $lang = 'BBCODE_ADDED';
274 $log_action = 'LOG_BBCODE_ADD';
275 }
276 else
277 {
278 $sql = 'UPDATE ' . BBCODES_TABLE . '
279 SET ' . $db->sql_build_array('UPDATE', $sql_ary) . '
280 WHERE bbcode_id = ' . $bbcode_id;
281 $db->sql_query($sql);
282 $cache->destroy('sql', BBCODES_TABLE);
283
284 $lang = 'BBCODE_EDITED';
285 $log_action = 'LOG_BBCODE_EDIT';
286 }
287
288 add_log('admin', $log_action, $data['bbcode_tag']);
289
290 trigger_error($user->lang[$lang] . adm_back_link($this->u_action));
291 }
292 else
293 {
294 confirm_box(false, $user->lang['BBCODE_DANGER'], build_hidden_fields(array_merge($hidden_fields, array(
295 'action' => $action,
296 'bbcode' => $bbcode_id,
297 'bbcode_match' => $bbcode_match,
298 'bbcode_tpl' => htmlspecialchars($bbcode_tpl),
299 'bbcode_helpline' => $bbcode_helpline,
300 'display_on_posting' => $display_on_posting,
301 )))
302 , 'confirm_bbcode.html');
303 }
304
305 break;
306
307 case 'delete':
308
309 $sql = 'SELECT bbcode_tag
310 FROM ' . BBCODES_TABLE . "
311 WHERE bbcode_id = $bbcode_id";
312 $result = $db->sql_query($sql);
313 $row = $db->sql_fetchrow($result);
314 $db->sql_freeresult($result);
315
316 if ($row)
317 {
318 if (confirm_box(true))
319 {
320 $db->sql_query('DELETE FROM ' . BBCODES_TABLE . " WHERE bbcode_id = $bbcode_id");
321 $cache->destroy('sql', BBCODES_TABLE);
322 add_log('admin', 'LOG_BBCODE_DELETE', $row['bbcode_tag']);
323
324 if ($request->is_ajax())
325 {
326 $json_response = new \phpbb\json_response;
327 $json_response->send(array(
328 'MESSAGE_TITLE' => $user->lang['INFORMATION'],
329 'MESSAGE_TEXT' => $user->lang['BBCODE_DELETED'],
330 'REFRESH_DATA' => array(
331 'time' => 3
332 )
333 ));
334 }
335 }
336 else
337 {
338 confirm_box(false, $user->lang['CONFIRM_OPERATION'], build_hidden_fields(array(
339 'bbcode' => $bbcode_id,
340 'i' => $id,
341 'mode' => $mode,
342 'action' => $action))
343 );
344 }
345 }
346
347 break;
348 }
349
350 $u_action = $this->u_action;
351
352 $template_data = array(
353 'U_ACTION' => $this->u_action . '&action=add',
354 );
355
356 $sql_ary = array(
357 'SELECT' => 'b.*',
358 'FROM' => array(BBCODES_TABLE => 'b'),
359 'ORDER_BY' => 'b.bbcode_tag',
360 );
361
362 /**
363 * Modify custom bbcode template data before we display the form
364 *
365 * @event core.acp_bbcodes_display_form
366 * @var string action Type of the action: modify|create
367 * @var string sql_ary The SQL array to get custom bbcode data
368 * @var array template_data Array with form template data
369 * @var string u_action The u_action link
370 * @since 3.1.0-a3
371 */
372 $vars = array('action', 'sql_ary', 'template_data', 'u_action');
373 extract($phpbb_dispatcher->trigger_event('core.acp_bbcodes_display_form', compact($vars)));
374
375 $result = $db->sql_query($db->sql_build_query('SELECT', $sql_ary));
376
377 $template->assign_vars($template_data);
378
379 while ($row = $db->sql_fetchrow($result))
380 {
381 $bbcodes_array = array(
382 'BBCODE_TAG' => $row['bbcode_tag'],
383 'U_EDIT' => $u_action . '&action=edit&bbcode=' . $row['bbcode_id'],
384 'U_DELETE' => $u_action . '&action=delete&bbcode=' . $row['bbcode_id'],
385 );
386
387 /**
388 * Modify display of custom bbcodes in the form
389 *
390 * @event core.acp_bbcodes_display_bbcodes
391 * @var array row Array with current bbcode data
392 * @var array bbcodes_array Array of bbcodes template data
393 * @var string u_action The u_action link
394 * @since 3.1.0-a3
395 */
396 $vars = array('bbcodes_array', 'row', 'u_action');
397 extract($phpbb_dispatcher->trigger_event('core.acp_bbcodes_display_bbcodes', compact($vars)));
398
399 $template->assign_block_vars('bbcodes', $bbcodes_array);
400
401 }
402 $db->sql_freeresult($result);
403 }
404
405 /*
406 * Build regular expression for custom bbcode
407 */
408 function build_regexp(&$bbcode_match, &$bbcode_tpl)
409 {
410 $bbcode_match = trim($bbcode_match);
411 $bbcode_tpl = trim($bbcode_tpl);
412 $utf8 = strpos($bbcode_match, 'INTTEXT') !== false;
413
414 $utf8_pcre_properties = phpbb_pcre_utf8_support();
415
416 $fp_match = preg_quote($bbcode_match, '!');
417 $fp_replace = preg_replace('#^\[(.*?)\]#', '[$1:$uid]', $bbcode_match);
418 $fp_replace = preg_replace('#\[/(.*?)\]$#', '[/$1:$uid]', $fp_replace);
419
420 $sp_match = preg_quote($bbcode_match, '!');
421 $sp_match = preg_replace('#^\\\\\[(.*?)\\\\\]#', '\[$1:$uid\]', $sp_match);
422 $sp_match = preg_replace('#\\\\\[/(.*?)\\\\\]$#', '\[/$1:$uid\]', $sp_match);
423 $sp_replace = $bbcode_tpl;
424
425 // @todo Make sure to change this too if something changed in message parsing
426 $tokens = array(
427 'URL' => array(
428 '!(?:(' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('url')) . ')|(' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('www_url')) . '))!ie' => "\$this->bbcode_specialchars(('\$1') ? '\$1' : 'http://\$2')"
429 ),
430 'LOCAL_URL' => array(
431 '!(' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('relative_url')) . ')!e' => "\$this->bbcode_specialchars('$1')"
432 ),
433 'RELATIVE_URL' => array(
434 '!(' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('relative_url')) . ')!e' => "\$this->bbcode_specialchars('$1')"
435 ),
436 'EMAIL' => array(
437 '!(' . get_preg_expression('email') . ')!ie' => "\$this->bbcode_specialchars('$1')"
438 ),
439 'TEXT' => array(
440 '!(.*?)!es' => "str_replace(array(\"\\r\\n\", '\\\"', '\\'', '(', ')'), array(\"\\n\", '\"', ''', '(', ')'), trim('\$1'))"
441 ),
442 'SIMPLETEXT' => array(
443 '!([a-zA-Z0-9-+.,_ ]+)!' => "$1"
444 ),
445 'INTTEXT' => array(
446 ($utf8_pcre_properties) ? '!([\p{L}\p{N}\-+,_. ]+)!u' : '!([a-zA-Z0-9\-+,_. ]+)!u' => "$1"
447 ),
448 'IDENTIFIER' => array(
449 '!([a-zA-Z0-9-_]+)!' => "$1"
450 ),
451 'COLOR' => array(
452 '!([a-z]+|#[0-9abcdef]+)!i' => '$1'
453 ),
454 'NUMBER' => array(
455 '!([0-9]+)!' => '$1'
456 )
457 );
458
459 $sp_tokens = array(
460 'URL' => '(?i)((?:' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('url')) . ')|(?:' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('www_url')) . '))(?-i)',
461 'LOCAL_URL' => '(?i)(' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('relative_url')) . ')(?-i)',
462 'RELATIVE_URL' => '(?i)(' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('relative_url')) . ')(?-i)',
463 'EMAIL' => '(' . get_preg_expression('email') . ')',
464 'TEXT' => '(.*?)',
465 'SIMPLETEXT' => '([a-zA-Z0-9-+.,_ ]+)',
466 'INTTEXT' => ($utf8_pcre_properties) ? '([\p{L}\p{N}\-+,_. ]+)' : '([a-zA-Z0-9\-+,_. ]+)',
467 'IDENTIFIER' => '([a-zA-Z0-9-_]+)',
468 'COLOR' => '([a-zA-Z]+|#[0-9abcdefABCDEF]+)',
469 'NUMBER' => '([0-9]+)',
470 );
471
472 $pad = 0;
473 $modifiers = 'i';
474 $modifiers .= ($utf8 && $utf8_pcre_properties) ? 'u' : '';
475
476 if (preg_match_all('/\{(' . implode('|', array_keys($tokens)) . ')[0-9]*\}/i', $bbcode_match, $m))
477 {
478 foreach ($m[0] as $n => $token)
479 {
480 $token_type = $m[1][$n];
481
482 reset($tokens[strtoupper($token_type)]);
483 list($match, $replace) = each($tokens[strtoupper($token_type)]);
484
485 // Pad backreference numbers from tokens
486 if (preg_match_all('/(?<!\\\\)\$([0-9]+)/', $replace, $repad))
487 {
488 $repad = $pad + sizeof(array_unique($repad[0]));
489 $replace = preg_replace('/(?<!\\\\)\$([0-9]+)/e', "'\${' . (\$1 + \$pad) . '}'", $replace);
490 $pad = $repad;
491 }
492
493 // Obtain pattern modifiers to use and alter the regex accordingly
494 $regex = preg_replace('/!(.*)!([a-z]*)/', '$1', $match);
495 $regex_modifiers = preg_replace('/!(.*)!([a-z]*)/', '$2', $match);
496
497 for ($i = 0, $size = strlen($regex_modifiers); $i < $size; ++$i)
498 {
499 if (strpos($modifiers, $regex_modifiers[$i]) === false)
500 {
501 $modifiers .= $regex_modifiers[$i];
502
503 if ($regex_modifiers[$i] == 'e')
504 {
505 $fp_replace = "'" . str_replace("'", "\\'", $fp_replace) . "'";
506 }
507 }
508
509 if ($regex_modifiers[$i] == 'e')
510 {
511 $replace = "'.$replace.'";
512 }
513 }
514
515 $fp_match = str_replace(preg_quote($token, '!'), $regex, $fp_match);
516 $fp_replace = str_replace($token, $replace, $fp_replace);
517
518 $sp_match = str_replace(preg_quote($token, '!'), $sp_tokens[$token_type], $sp_match);
519
520 // Prepend the board url to local relative links
521 $replace_prepend = ($token_type === 'LOCAL_URL') ? generate_board_url() . '/' : '';
522
523 $sp_replace = str_replace($token, $replace_prepend . '${' . ($n + 1) . '}', $sp_replace);
524 }
525
526 $fp_match = '!' . $fp_match . '!' . $modifiers;
527 $sp_match = '!' . $sp_match . '!s' . (($utf8) ? 'u' : '');
528
529 if (strpos($fp_match, 'e') !== false)
530 {
531 $fp_replace = str_replace("'.'", '', $fp_replace);
532 $fp_replace = str_replace(".''.", '.', $fp_replace);
533 }
534 }
535 else
536 {
537 // No replacement is present, no need for a second-pass pattern replacement
538 // A simple str_replace will suffice
539 $fp_match = '!' . $fp_match . '!' . $modifiers;
540 $sp_match = $fp_replace;
541 $sp_replace = '';
542 }
543
544 // Lowercase tags
545 $bbcode_tag = preg_replace('/.*?\[([a-z0-9_-]+=?).*/i', '$1', $bbcode_match);
546 $bbcode_search = preg_replace('/.*?\[([a-z0-9_-]+)=?.*/i', '$1', $bbcode_match);
547
548 if (!preg_match('/^[a-zA-Z0-9_-]+=?$/', $bbcode_tag))
549 {
550 global $user;
551 trigger_error($user->lang['BBCODE_INVALID'] . adm_back_link($this->u_action), E_USER_WARNING);
552 }
553
554 $fp_match = preg_replace('#\[/?' . $bbcode_search . '#ie', "strtolower('\$0')", $fp_match);
555 $fp_replace = preg_replace('#\[/?' . $bbcode_search . '#ie', "strtolower('\$0')", $fp_replace);
556 $sp_match = preg_replace('#\[/?' . $bbcode_search . '#ie', "strtolower('\$0')", $sp_match);
557 $sp_replace = preg_replace('#\[/?' . $bbcode_search . '#ie', "strtolower('\$0')", $sp_replace);
558
559 return array(
560 'bbcode_tag' => $bbcode_tag,
561 'first_pass_match' => $fp_match,
562 'first_pass_replace' => $fp_replace,
563 'second_pass_match' => $sp_match,
564 'second_pass_replace' => $sp_replace
565 );
566 }
567 }
568