mirror of
https://github.com/phpbb/phpbb.git
synced 2025-06-08 04:18:52 +00:00
2f4a618900
Changes:
- Ascraeus now uses constants for the phpbb root path and the php extension. This ensures more security for external applications and modifications (no more overwriting of root path and extension possible through insecure mods and register globals enabled) as well as no more globalizing needed.
- A second change implemented here is an additional short-hand-notation for append_sid(). It is allowed to omit the root path and extension now (for example calling append_sid('memberlist')) - in this case the root path and extension get added automatically. The hook is called after these are added.
git-svn-id: file:///svn/phpbb/trunk@8572 89ea8834-ac86-4346-8a33-228a782c2dd0
436 lines
No EOL
13 KiB
PHP
436 lines
No EOL
13 KiB
PHP
<?php
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/**
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*
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* @package acp
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* @version $Id$
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* @copyright (c) 2005 phpBB Group
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License
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*
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*/
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/**
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* @ignore
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*/
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if (!defined('IN_PHPBB'))
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{
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exit;
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}
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/**
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* @package acp
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*/
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class acp_bbcodes
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{
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var $u_action;
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function main($id, $mode)
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{
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global $db, $user, $auth, $template, $cache, $config;
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$user->add_lang('acp/posting');
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// Set up general vars
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$action = request_var('action', '');
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$bbcode_id = request_var('bbcode', 0);
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$this->tpl_name = 'acp_bbcodes';
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$this->page_title = 'ACP_BBCODES';
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$form_key = 'acp_bbcodes';
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add_form_key($form_key);
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// Set up mode-specific vars
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switch ($action)
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{
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case 'add':
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$bbcode_match = $bbcode_tpl = $bbcode_helpline = '';
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$display_on_posting = 0;
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break;
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case 'edit':
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$sql = 'SELECT bbcode_match, bbcode_tpl, display_on_posting, bbcode_helpline
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FROM ' . BBCODES_TABLE . '
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WHERE bbcode_id = ' . $bbcode_id;
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$result = $db->sql_query($sql);
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$row = $db->sql_fetchrow($result);
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$db->sql_freeresult($result);
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if (!$row)
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{
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trigger_error($user->lang['BBCODE_NOT_EXIST'] . adm_back_link($this->u_action), E_USER_WARNING);
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}
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$bbcode_match = $row['bbcode_match'];
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$bbcode_tpl = htmlspecialchars($row['bbcode_tpl']);
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$display_on_posting = $row['display_on_posting'];
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$bbcode_helpline = $row['bbcode_helpline'];
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break;
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case 'modify':
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$sql = 'SELECT bbcode_id, bbcode_tag
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FROM ' . BBCODES_TABLE . '
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WHERE bbcode_id = ' . $bbcode_id;
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$result = $db->sql_query($sql);
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$row = $db->sql_fetchrow($result);
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$db->sql_freeresult($result);
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if (!$row)
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{
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trigger_error($user->lang['BBCODE_NOT_EXIST'] . adm_back_link($this->u_action), E_USER_WARNING);
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}
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// No break here
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case 'create':
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$display_on_posting = request_var('display_on_posting', 0);
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$bbcode_match = request_var('bbcode_match', '');
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$bbcode_tpl = htmlspecialchars_decode(utf8_normalize_nfc(request_var('bbcode_tpl', '', true)));
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$bbcode_helpline = utf8_normalize_nfc(request_var('bbcode_helpline', '', true));
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break;
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}
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// Do major work
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switch ($action)
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{
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case 'edit':
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case 'add':
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$template->assign_vars(array(
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'S_EDIT_BBCODE' => true,
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'U_BACK' => $this->u_action,
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'U_ACTION' => $this->u_action . '&action=' . (($action == 'add') ? 'create' : 'modify') . (($bbcode_id) ? "&bbcode=$bbcode_id" : ''),
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'L_BBCODE_USAGE_EXPLAIN'=> sprintf($user->lang['BBCODE_USAGE_EXPLAIN'], '<a href="#down">', '</a>'),
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'BBCODE_MATCH' => $bbcode_match,
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'BBCODE_TPL' => $bbcode_tpl,
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'BBCODE_HELPLINE' => $bbcode_helpline,
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'DISPLAY_ON_POSTING' => $display_on_posting)
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);
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foreach ($user->lang['tokens'] as $token => $token_explain)
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{
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$template->assign_block_vars('token', array(
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'TOKEN' => '{' . $token . '}',
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'EXPLAIN' => $token_explain)
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);
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}
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return;
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break;
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case 'modify':
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case 'create':
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$data = $this->build_regexp($bbcode_match, $bbcode_tpl);
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// Make sure the user didn't pick a "bad" name for the BBCode tag.
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$hard_coded = array('code', 'quote', 'quote=', 'attachment', 'attachment=', 'b', 'i', 'url', 'url=', 'img', 'size', 'size=', 'color', 'color=', 'u', 'list', 'list=', 'email', 'email=', 'flash', 'flash=');
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if (($action == 'modify' && strtolower($data['bbcode_tag']) !== strtolower($row['bbcode_tag'])) || ($action == 'create'))
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{
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$sql = 'SELECT 1 as test
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FROM ' . BBCODES_TABLE . "
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WHERE LOWER(bbcode_tag) = '" . $db->sql_escape(strtolower($data['bbcode_tag'])) . "'";
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$result = $db->sql_query($sql);
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$info = $db->sql_fetchrow($result);
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$db->sql_freeresult($result);
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// Grab the end, interrogate the last closing tag
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if ($info['test'] === '1' || in_array(strtolower($data['bbcode_tag']), $hard_coded) || (preg_match('#\[/([^[]*)]$#', $bbcode_match, $regs) && in_array(strtolower($regs[1]), $hard_coded)))
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{
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trigger_error($user->lang['BBCODE_INVALID_TAG_NAME'] . adm_back_link($this->u_action), E_USER_WARNING);
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}
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}
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if (substr($data['bbcode_tag'], -1) === '=')
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{
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$test = substr($data['bbcode_tag'], 0, -1);
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}
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else
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{
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$test = $data['bbcode_tag'];
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}
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if (!preg_match('%\\[' . $test . '[^]]*].*?\\[/' . $test . ']%s', $bbcode_match))
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{
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trigger_error($user->lang['BBCODE_OPEN_ENDED_TAG'] . adm_back_link($this->u_action), E_USER_WARNING);
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}
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if (strlen($data['bbcode_tag']) > 16)
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{
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trigger_error($user->lang['BBCODE_TAG_TOO_LONG'] . adm_back_link($this->u_action), E_USER_WARNING);
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}
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if (strlen($bbcode_match) > 4000)
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{
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trigger_error($user->lang['BBCODE_TAG_DEF_TOO_LONG'] . adm_back_link($this->u_action), E_USER_WARNING);
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}
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$sql_ary = array(
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'bbcode_tag' => $data['bbcode_tag'],
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'bbcode_match' => $bbcode_match,
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'bbcode_tpl' => $bbcode_tpl,
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'display_on_posting' => $display_on_posting,
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'bbcode_helpline' => $bbcode_helpline,
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'first_pass_match' => $data['first_pass_match'],
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'first_pass_replace' => $data['first_pass_replace'],
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'second_pass_match' => $data['second_pass_match'],
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'second_pass_replace' => $data['second_pass_replace']
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);
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if ($action == 'create')
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{
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$sql = 'SELECT MAX(bbcode_id) as max_bbcode_id
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FROM ' . BBCODES_TABLE;
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$result = $db->sql_query($sql);
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$row = $db->sql_fetchrow($result);
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$db->sql_freeresult($result);
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if ($row)
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{
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$bbcode_id = $row['max_bbcode_id'] + 1;
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// Make sure it is greater than the core bbcode ids...
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if ($bbcode_id <= NUM_CORE_BBCODES)
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{
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$bbcode_id = NUM_CORE_BBCODES + 1;
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}
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}
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else
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{
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$bbcode_id = NUM_CORE_BBCODES + 1;
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}
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if ($bbcode_id > 1511)
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{
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trigger_error($user->lang['TOO_MANY_BBCODES'] . adm_back_link($this->u_action), E_USER_WARNING);
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}
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$sql_ary['bbcode_id'] = (int) $bbcode_id;
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$db->sql_query('INSERT INTO ' . BBCODES_TABLE . $db->sql_build_array('INSERT', $sql_ary));
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$cache->destroy('sql', BBCODES_TABLE);
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$lang = 'BBCODE_ADDED';
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$log_action = 'LOG_BBCODE_ADD';
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}
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else
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{
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$sql = 'UPDATE ' . BBCODES_TABLE . '
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SET ' . $db->sql_build_array('UPDATE', $sql_ary) . '
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WHERE bbcode_id = ' . $bbcode_id;
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$db->sql_query($sql);
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$cache->destroy('sql', BBCODES_TABLE);
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$lang = 'BBCODE_EDITED';
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$log_action = 'LOG_BBCODE_EDIT';
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}
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add_log('admin', $log_action, $data['bbcode_tag']);
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trigger_error($user->lang[$lang] . adm_back_link($this->u_action));
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break;
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case 'delete':
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$sql = 'SELECT bbcode_tag
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FROM ' . BBCODES_TABLE . "
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WHERE bbcode_id = $bbcode_id";
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$result = $db->sql_query($sql);
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$row = $db->sql_fetchrow($result);
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$db->sql_freeresult($result);
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if ($row)
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{
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if (confirm_box(true))
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{
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$db->sql_query('DELETE FROM ' . BBCODES_TABLE . " WHERE bbcode_id = $bbcode_id");
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$cache->destroy('sql', BBCODES_TABLE);
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add_log('admin', 'LOG_BBCODE_DELETE', $row['bbcode_tag']);
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}
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else
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{
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confirm_box(false, $user->lang['CONFIRM_OPERATION'], build_hidden_fields(array(
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'bbcode' => $bbcode_id,
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'i' => $id,
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'mode' => $mode,
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'action' => $action))
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);
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}
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}
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break;
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}
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$template->assign_vars(array(
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'U_ACTION' => $this->u_action . '&action=add')
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);
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$sql = 'SELECT *
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FROM ' . BBCODES_TABLE . '
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ORDER BY bbcode_tag';
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$result = $db->sql_query($sql);
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while ($row = $db->sql_fetchrow($result))
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{
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$template->assign_block_vars('bbcodes', array(
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'BBCODE_TAG' => $row['bbcode_tag'],
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'U_EDIT' => $this->u_action . '&action=edit&bbcode=' . $row['bbcode_id'],
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'U_DELETE' => $this->u_action . '&action=delete&bbcode=' . $row['bbcode_id'])
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);
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}
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$db->sql_freeresult($result);
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}
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/*
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* Build regular expression for custom bbcode
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*/
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function build_regexp(&$bbcode_match, &$bbcode_tpl)
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{
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$bbcode_match = trim($bbcode_match);
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$bbcode_tpl = trim($bbcode_tpl);
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$fp_match = preg_quote($bbcode_match, '!');
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$fp_replace = preg_replace('#^\[(.*?)\]#', '[$1:$uid]', $bbcode_match);
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$fp_replace = preg_replace('#\[/(.*?)\]$#', '[/$1:$uid]', $fp_replace);
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$sp_match = preg_quote($bbcode_match, '!');
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$sp_match = preg_replace('#^\\\\\[(.*?)\\\\\]#', '\[$1:$uid\]', $sp_match);
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$sp_match = preg_replace('#\\\\\[/(.*?)\\\\\]$#', '\[/$1:$uid\]', $sp_match);
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$sp_replace = $bbcode_tpl;
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// @todo Make sure to change this too if something changed in message parsing
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$tokens = array(
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'URL' => array(
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'!(?:(' . 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')"
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),
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'LOCAL_URL' => array(
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'!(' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('relative_url')) . ')!e' => "\$this->bbcode_specialchars('$1')"
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),
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'EMAIL' => array(
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'!(' . get_preg_expression('email') . ')!ie' => "\$this->bbcode_specialchars('$1')"
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),
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'TEXT' => array(
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'!(.*?)!es' => "str_replace(array(\"\\r\\n\", '\\\"', '\\'', '(', ')'), array(\"\\n\", '\"', ''', '(', ')'), trim('\$1'))"
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),
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'SIMPLETEXT' => array(
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'!([a-zA-Z0-9-+.,_ ]+)!' => "$1"
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),
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'IDENTIFIER' => array(
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'!([a-zA-Z0-9-_]+)!' => "$1"
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),
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'COLOR' => array(
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'!([a-z]+|#[0-9abcdef]+)!i' => '$1'
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),
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'NUMBER' => array(
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'!([0-9]+)!' => '$1'
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)
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);
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$sp_tokens = array(
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'URL' => '(?i)((?:' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('url')) . ')|(?:' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('www_url')) . '))(?-i)',
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'LOCAL_URL' => '(?i)(' . str_replace(array('!', '\#'), array('\!', '#'), get_preg_expression('relative_url')) . ')(?-i)',
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'EMAIL' => '(' . get_preg_expression('email') . ')',
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'TEXT' => '(.*?)',
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'SIMPLETEXT' => '([a-zA-Z0-9-+.,_ ]+)',
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'IDENTIFIER' => '([a-zA-Z0-9-_]+)',
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'COLOR' => '([a-zA-Z]+|#[0-9abcdefABCDEF]+)',
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'NUMBER' => '([0-9]+)',
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);
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$pad = 0;
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$modifiers = 'i';
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if (preg_match_all('/\{(' . implode('|', array_keys($tokens)) . ')[0-9]*\}/i', $bbcode_match, $m))
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{
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foreach ($m[0] as $n => $token)
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{
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$token_type = $m[1][$n];
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reset($tokens[strtoupper($token_type)]);
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list($match, $replace) = each($tokens[strtoupper($token_type)]);
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// Pad backreference numbers from tokens
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if (preg_match_all('/(?<!\\\\)\$([0-9]+)/', $replace, $repad))
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{
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$repad = $pad + sizeof(array_unique($repad[0]));
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$replace = preg_replace('/(?<!\\\\)\$([0-9]+)/e', "'\${' . (\$1 + \$pad) . '}'", $replace);
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$pad = $repad;
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}
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// Obtain pattern modifiers to use and alter the regex accordingly
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$regex = preg_replace('/!(.*)!([a-z]*)/', '$1', $match);
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$regex_modifiers = preg_replace('/!(.*)!([a-z]*)/', '$2', $match);
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for ($i = 0, $size = strlen($regex_modifiers); $i < $size; ++$i)
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{
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if (strpos($modifiers, $regex_modifiers[$i]) === false)
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{
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$modifiers .= $regex_modifiers[$i];
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if ($regex_modifiers[$i] == 'e')
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{
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$fp_replace = "'" . str_replace("'", "\\'", $fp_replace) . "'";
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}
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}
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if ($regex_modifiers[$i] == 'e')
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{
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$replace = "'.$replace.'";
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}
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}
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$fp_match = str_replace(preg_quote($token, '!'), $regex, $fp_match);
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$fp_replace = str_replace($token, $replace, $fp_replace);
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$sp_match = str_replace(preg_quote($token, '!'), $sp_tokens[$token_type], $sp_match);
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$sp_replace = str_replace($token, '${' . ($n + 1) . '}', $sp_replace);
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}
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$fp_match = '!' . $fp_match . '!' . $modifiers;
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$sp_match = '!' . $sp_match . '!s';
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if (strpos($fp_match, 'e') !== false)
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{
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$fp_replace = str_replace("'.'", '', $fp_replace);
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$fp_replace = str_replace(".''.", '.', $fp_replace);
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}
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}
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else
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{
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// No replacement is present, no need for a second-pass pattern replacement
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// A simple str_replace will suffice
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$fp_match = '!' . $fp_match . '!' . $modifiers;
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$sp_match = $fp_replace;
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$sp_replace = '';
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}
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// Lowercase tags
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$bbcode_tag = preg_replace('/.*?\[([a-z0-9_-]+=?).*/i', '$1', $bbcode_match);
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$bbcode_search = preg_replace('/.*?\[([a-z0-9_-]+)=?.*/i', '$1', $bbcode_match);
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if (!preg_match('/^[a-zA-Z0-9_-]+=?$/', $bbcode_tag))
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{
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global $user;
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trigger_error($user->lang['BBCODE_INVALID'] . adm_back_link($this->u_action), E_USER_WARNING);
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}
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$fp_match = preg_replace('#\[/?' . $bbcode_search . '#ie', "strtolower('\$0')", $fp_match);
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$fp_replace = preg_replace('#\[/?' . $bbcode_search . '#ie', "strtolower('\$0')", $fp_replace);
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$sp_match = preg_replace('#\[/?' . $bbcode_search . '#ie', "strtolower('\$0')", $sp_match);
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$sp_replace = preg_replace('#\[/?' . $bbcode_search . '#ie', "strtolower('\$0')", $sp_replace);
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return array(
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'bbcode_tag' => $bbcode_tag,
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'first_pass_match' => $fp_match,
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'first_pass_replace' => $fp_replace,
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'second_pass_match' => $sp_match,
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'second_pass_replace' => $sp_replace
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);
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}
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}
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?>
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