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php-phpbb/phpBB/includes/message_parser.php
Meik Sievertsen fa005f44ae some posting updates and fixes. 
git-svn-id: file:///svn/phpbb/trunk@3631 89ea8834-ac86-4346-8a33-228a782c2dd0
2003-03-10 19:39:50 +00:00

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<?php
/***************************************************************************
* message_parser.php
* -------------------
* begin : Saturday, Feb 13, 2001
* copyright : (C) 2001 The phpBB Group
* email : support@phpbb.com
*
* $Id$
*
***************************************************************************/
/***************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
***************************************************************************/
// Main message parser for posting, pm, etc. takes raw message
// and parses it for attachments, html, bbcode and smilies
class parse_message
{
var $bbcode_tpl = null;
var $message_mode = 0; // MSG_POST/MSG_PM
function parse_message($message_type)
{
$this->message_mode = $message_type;
}
function parse(&$message, $html, $bbcode, $uid, $url, $smilies, $attach = false)
{
global $config, $db, $user, $_FILE;
$warn_msg = '';
// Do some general 'cleanup' first before processing message,
// e.g. remove excessive newlines(?), smilies(?)
$match = array('#sid=[a-z0-9]*?&?#', "#([\r\n][\s]+){3,}#");
$replace = array('', "\n\n");
$message = trim(preg_replace($match, $replace, $message));
// Message length check
if (!strlen($message) || (intval($config['max_post_chars']) && strlen($message) > intval($config['max_post_chars'])))
{
$warn_msg .= (($warn_msg != '') ? '<br />' : '') . (!strlen($message)) ? $user->lang['TOO_FEW_CHARS'] : $user->lang['TOO_MANY_CHARS'];
}
// Smiley check
if (intval($config['max_post_smilies']) && $smilies )
{
$sql = "SELECT code
FROM " . SMILIES_TABLE;
$result = $db->sql_query($sql);
$match = 0;
while ($row = $db->sql_fetchrow($result))
{
if (preg_match_all('#('. preg_quote($row['code'], '#') . ')#', $message, $matches))
{
$match++;
}
if ($match > intval($config['max_post_smilies']))
{
$warn_msg .= (($warn_msg != '') ? '<br />' : '') . $user->lang['TOO_MANY_SMILIES'];
break;
}
}
$db->sql_freeresult($result);
unset($matches);
}
if ($warn_msg)
{
return $warn_msg;
}
$warn_msg .= (($warn_msg != '') ? '<br />' : '') . $this->html($message, $html);
$warn_msg .= (($warn_msg != '') ? '<br />' : '') . $this->bbcode($message, $bbcode, $uid);
$warn_msg .= (($warn_msg != '') ? '<br />' : '') . $this->emoticons($message, $smilies);
$warn_msg .= (($warn_msg != '') ? '<br />' : '') . $this->magic_url($message, $url);
$warn_msg .= (($warn_msg != '') ? '<br />' : '') . $this->attach($_FILE, $attach);
return $warn_msg;
}
function html(&$message, $html)
{
global $config;
$message = str_replace(array('<', '>'), array('&lt;', '&gt;'), $message);
if ($html)
{
// If $html is true then "allowed_tags" are converted back from entity
// form, others remain
$allowed_tags = split(',', $config['allow_html_tags']);
if (sizeof($allowed_tags))
{
$message = preg_replace('#&lt;(\/?)(' . str_replace('*', '.*?', implode('|', $allowed_tags)) . ')&gt;#is', '<\1\2>', $message);
}
}
return;
}
function bbcode(&$message, $bbcode, $uid)
{
global $config;
}
// Replace magic urls of form http://xxx.xxx., www.xxx. and xxx@xxx.xxx.
// Cuts down displayed size of link if over 50 chars, turns absolute links
// into relative versions when the server/script path matches the link
function magic_url(&$message, $url)
{
global $config;
if ($url)
{
$server_protocol = ( $config['cookie_secure'] ) ? 'https://' : 'http://';
$server_port = ( $config['server_port'] <> 80 ) ? ':' . trim($config['server_port']) . '/' : '/';
$match = array();
$replace = array();
// relative urls for this board
$match[] = '#' . $server_protocol . trim($config['server_name']) . $server_port . preg_replace('/^\/?(.*?)(\/)?$/', '\1', trim($config['script_path'])) . '/([^\t\n\r <"\']+)#i';
$replace[] = '<!-- l --><a href="\1" target="_blank">\1</a><!-- l -->';
// matches a xxxx://aaaaa.bbb.cccc. ...
$match[] = '#(^|[\n ])([\w]+?://.*?[^\t\n\r<"]*)#ie';
$replace[] = "'\\1<!-- m --><a href=\"\\2\" target=\"_blank\">' . ( ( strlen(str_replace(' ', '%20', '\\2')) > 55 ) ?substr(str_replace(' ', '%20', '\\2'), 0, 39) . ' ... ' . substr(str_replace(' ', '%20', '\\2'), -10) : str_replace(' ', '%20', '\\2') ) . '</a><!-- m -->'";
// matches a "www.xxxx.yyyy[/zzzz]" kinda lazy URL thing
$match[] = '#(^|[\n ])(www\.[\w\-]+\.[\w\-.\~]+(?:/[^\t\n\r<"]*)?)#ie';
$replace[] = "'\\1<!-- w --><a href=\"http://\\2\" target=\"_blank\">' . ( ( strlen(str_replace(' ', '%20', '\\2')) > 55 ) ? substr(str_replace(' ', '%20', '\\2'), 0, 39) . ' ... ' . substr(str_replace(' ', '%20', '\\2'), -10) : str_replace(' ', '%20', '\\2') ) . '</a><!-- w -->'";
// matches an email@domain type address at the start of a line, or after a space.
$match[] = '#(^|[\n ])([a-z0-9&\-_.]+?@[\w\-]+\.([\w\-\.]+\.)?[\w]+)#ie';
$replace[] = "'\\1<!-- e --><a href=\"mailto:\\2\">' . ( ( strlen('\\2') > 55 ) ?substr('\\2', 0, 39) . ' ... ' . substr('\\2', -10) : '\\2' ) . '</a><!-- e -->'";
$message = preg_replace($match, $replace, $message);
}
}
function emoticons(&$message, $smile)
{
global $db, $user;
$sql = "SELECT *
FROM " . SMILIES_TABLE;
$result = $db->sql_query($sql);
if ($row = $db->sql_fetchrow($result))
{
$match = $replace = array();
do
{
$match[] = "#(?<=.\W|\W.|^\W)" . preg_quote($row['code'], '#') . "(?=.\W|\W.|\W$)#";
$replace[] = '<!-- s' . $row['code'] . ' --><img src="{SMILE_PATH}/' . $row['smile_url'] . '" border="0" alt="' . $row['emoticon'] . '" title="' . $row['emoticon'] . '" /><!-- s' . $row['code'] . ' -->';
}
while ($row = $db->sql_fetchrow($result));
$message = preg_replace($match, $replace, ' ' . $message . ' ');
}
$db->sql_freeresult($result);
return;
}
function attach($file_ary, $attach)
{
global $config;
}
// Manage Poll
function parse_poll(&$poll, $poll_data)
{
global $auth, $forum_id, $user, $config;
// poll_options, poll_options_size
$err_msg = '';
// Process poll options
if (!empty($poll_data['poll_option_text']) && (($auth->acl_get('f_poll', $forum_id) && !$poll_data['poll_last_vote']) || $auth->acl_gets('m_edit', 'a_', $forum_id)))
{
if (($result = $this->parse($poll_data['poll_option_text'], $poll_data['enable_html'], $poll_data['enable_bbcode'], $poll_data['bbcode_uid'], $poll_data['enable_urls'], $poll_data['enable_smilies'], false)) != '')
{
$err_msg .= ((!empty($err_msg)) ? '<br />' : '') . $result;
}
$poll['poll_options'] = explode("\n", trim($poll_data['poll_option_text']));
$poll['poll_options_size'] = sizeof($poll['poll_options']);
if (sizeof($poll['poll_options']) == 1)
{
$err_msg .= ((!empty($err_msg)) ? '<br />' : '') . $user->lang['TOO_FEW_POLL_OPTIONS'];
}
else if (sizeof($poll['poll_options']) > intval($config['max_poll_options']))
{
$err_msg .= ((!empty($err_msg)) ? '<br />' : '') . $user->lang['TOO_MANY_POLL_OPTIONS'];
}
else if (sizeof($poll['poll_options']) < $poll['poll_options_size'])
{
$err_msg .= ((!empty($err_msg)) ? '<br />' : '') . $user->lang['NO_DELETE_POLL_OPTIONS'];
}
$poll['poll_title'] = (!empty($poll_data['poll_title'])) ? trim(htmlspecialchars(strip_tags($poll_data['poll_title']))) : '';
$poll['poll_length'] = (!empty($poll_data['poll_length'])) ? intval($poll_data['poll_length']) : 0;
}
$poll['poll_start'] = $poll_data['poll_start'];
return ($err_msg);
}
// Format text to be displayed - from viewtopic.php
function format_display($message, $html, $bbcode, $uid, $url, $smilies, $sig)
{
global $auth, $forum_id, $config, $censors, $user;
// If the board has HTML off but the post has HTML
// on then we process it, else leave it alone
if ($html && $auth->acl_get('f_bbcode', $forum_id))
{
$message = preg_replace('#(<)([\/]?.*?)(>)#is', "&lt;\\2&gt;", $message);
}
// Second parse bbcode here
// If we allow users to disable display of emoticons
// we'll need an appropriate check and preg_replace here
$message = (empty($smilies) || empty($config['allow_smilies'])) ? preg_replace('#<!\-\- s(.*?) \-\-><img src="\{SMILE_PATH\}\/.*? \/><!\-\- s\1 \-\->#', '\1', $message) : str_replace('<img src="{SMILE_PATH}', '<img src="' . $config['smilies_path'], $message);
// Replace naughty words such as farty pants
if (sizeof($censors))
{
$message = str_replace('\"', '"', substr(preg_replace('#(\>(((?>([^><]+|(?R)))*)\<))#se', "preg_replace(\$censors['match'], \$censors['replace'], '\\0')", '>' . $message . '<'), 1, -1));
}
$message = nl2br($message);
// Signature
$user_sig = ($sig && $config['allow_sig']) ? trim($user->data['user_sig']) : '';
if ($user_sig != '' && $auth->acl_gets('f_sigs', 'm_', 'a_', $forum_id))
{
if (!$auth->acl_get('f_html', $forum_id) && $user->data['user_allowhtml'])
{
$user_sig = preg_replace('#(<)([\/]?.*?)(>)#is', "&lt;\\2&gt;", $user_sig);
}
$user_sig = (empty($user->data['user_allowsmile']) || empty($config['enable_smilies'])) ? preg_replace('#<!\-\- s(.*?) \-\-><img src="\{SMILE_PATH\}\/.*? \/><!\-\- s\1 \-\->#', '\1', $user_sig) : str_replace('<img src="{SMILE_PATH}', '<img src="' . $config['smilies_path'], $user_sig);
if (sizeof($censors))
{
$user_sig = str_replace('\"', '"', substr(preg_replace('#(\>(((?>([^><]+|(?R)))*)\<))#se', "preg_replace(\$censors['match'], \$censors['replace'], '\\0')", '>' . $user_sig . '<'), 1, -1));
}
$user_sig = '<br />_________________<br />' . nl2br($user_sig);
}
else
{
$user_sig = '';
}
$message = (empty($smilies) || empty($config['allow_smilies'])) ? preg_replace('#<!\-\- s(.*?) \-\-><img src="\{SMILE_PATH\}\/.*? \/><!\-\- s\1 \-\->#', '\1', $message) : str_replace('<img src="{SMILE_PATH}', '<img src="' . $config['smilies_path'], $message);
$message .= $user_sig;
return($message);
}
// Submit Poll
function submit_poll($topic_id, $mode, $poll)
{
global $db;
$cur_poll_options = array();
if ($poll['poll_start'] && $mode == 'edit')
{
$sql = "SELECT * FROM " . POLL_OPTIONS_TABLE . "
WHERE topic_id = " . $topic_id . "
ORDER BY poll_option_id";
$result = $db->sql_query($sql);
while ($cur_poll_options[] = $db->sql_fetchrow($result));
$db->sql_freeresult($result);
}
for ($i = 0; $i < sizeof($poll['poll_options']); $i++)
{
if (trim($poll['poll_options'][$i]) != '')
{
if (empty($cur_poll_options[$i]))
{
$sql = "INSERT INTO " . POLL_OPTIONS_TABLE . " (poll_option_id, topic_id, poll_option_text)
VALUES (" . $i . ", " . $topic_id . ", '" . $db->sql_escape($poll['poll_options'][$i]) . "')";
$db->sql_query($sql);
}
else if ($poll['poll_options'][$i] != $cur_poll_options[$i])
{
$sql = "UPDATE " . POLL_OPTIONS_TABLE . "
SET poll_option_text = '" . $db->sql_escape($poll['poll_options'][$i]) . "'
WHERE poll_option_id = " . $cur_poll_options[$i]['poll_option_id'];
$db->sql_query($sql);
}
}
}
if (sizeof($poll['poll_options']) < sizeof($cur_poll_options))
{
$sql = "DELETE FROM " . POLL_OPTIONS_TABLE . "
WHERE poll_option_id > " . sizeof($poll['poll_options']) . " AND topic_id = " . $topic_id;
$db->sql_query($sql);
}
}
// Submit Post
function submit_post($mode, $message, $subject, $username, $topic_type, $bbcode_uid, $poll, $post_data)
{
global $db, $auth, $user, $config, $phpEx, $SID, $template;
$search = new fulltext_search();
$current_time = time();
$db->sql_transaction();
// Initial Topic table info
if ( ($mode == 'post') || ($mode == 'edit' && $post_data['topic_first_post_id'] == $post_data['post_id']))
{
$topic_sql = array(
'forum_id' => $post_data['forum_id'],
'topic_title' => stripslashes($subject),
'topic_time' => $current_time,
'topic_type' => $topic_type,
'topic_approved' => (($post_data['enable_moderate']) && !$auth->acl_gets('f_ignorequeue', 'm_', 'a_', $post_data['forum_id'])) ? 0 : 1,
'icon_id' => $post_data['icon_id'],
'topic_poster' => intval($user->data['user_id']),
'topic_first_poster_name' => ($username != '') ? stripslashes($username) : (($user->data['user_id'] == ANONYMOUS) ? '' : stripslashes($user->data['username'])),
);
if (!empty($poll['poll_options']))
{
$topic_sql = array_merge($topic_sql, array(
'poll_title' => stripslashes($poll['poll_title']),
'poll_start' => ($poll['poll_start']) ? $poll['poll_start'] : $current_time,
'poll_length' => $poll['poll_length'] * 3600
));
}
$sql = ($mode == 'post') ? 'INSERT INTO ' . TOPICS_TABLE . ' ' . $db->sql_build_array('INSERT', $topic_sql) : 'UPDATE ' . TOPICS_TABLE . ' SET ' . $db->sql_build_array('UPDATE', $topic_sql) . ' WHERE topic_id = ' . $post_data['topic_id'];
$db->sql_query($sql);
$post_data['topic_id'] = ($mode == 'post') ? $db->sql_nextid() : $post_data['topic_id'];
}
// Post table info
$post_sql = array(
'topic_id' => $post_data['topic_id'],
'forum_id' => $post_data['forum_id'],
'poster_id' => ($mode == 'edit') ? $post_data['poster_id'] : intval($user->data['user_id']),
'post_username' => ($username != '') ? stripslashes($username) : '',
'post_subject' => stripslashes($subject),
'icon_id' => $post_data['icon_id'],
'poster_ip' => $user->ip,
'post_time' => $current_time,
'post_approved' => ($post_data['enable_moderate'] && !$auth->acl_gets('f_ignorequeue', 'm_', 'a_', $post_data['forum_id'])) ? 0 : 1,
'post_edit_time' => ($mode == 'edit' && $post_data['poster_id'] == $user->data['user_id']) ? $current_time : 0,
'enable_sig' => $post_data['enable_sig'],
'enable_bbcode' => $post_data['enable_bbcode'],
'enable_html' => $post_data['enable_html'],
'enable_smilies' => $post_data['enable_smilies'],
'enable_magic_url' => $post_data['enable_urls'],
'bbcode_uid' => $bbcode_uid,
);
if ($mode != 'edit' || $post_data['message_md5'] != $post_data['post_checksum'])
{
$post_sql = array_merge($post_sql, array(
'post_checksum' => $post_data['message_md5'],
'post_text' => stripslashes($message),
'post_encoding' => $user->lang['ENCODING']
));
}
$sql = ($mode == 'edit' && $post_data['poster_id'] == intval($user->data['user_id'])) ? 'UPDATE ' . POSTS_TABLE . ' SET ' . $db->sql_build_array('UPDATE', $post_sql) . ' , post_edit_count = post_edit_count + 1 WHERE post_id = ' . $post_data['post_id'] : 'INSERT INTO ' . POSTS_TABLE . ' ' . $db->sql_build_array('INSERT', $post_sql);
$db->sql_query($sql);
$post_data['post_id'] = ($mode == 'edit') ? $post_data['post_id'] : $db->sql_nextid();
// poll options
if (!empty($poll['poll_options']))
{
$this->submit_poll($post_data['topic_id'], $mode, $poll);
}
// Fulltext parse
if ($mode != 'edit' || $post_data['message_md5'] != $post_data['post_checksum'])
{
$result = $search->add($mode, $post_data['post_id'], $message, $subject);
}
// Sync forums, topics and users ...
if ($mode != 'edit')
{
// Update forums: last post info, topics, posts ... we need to update
// each parent too ...
$forum_ids = $post_data['forum_id'];
if (!empty($post_data['forum_parents']))
{
$post_data['forum_parents'] = unserialize($post_data['forum_parents']);
foreach ($post_data['forum_parents'] as $parent_forum_id => $parent_name)
{
$forum_ids .= ', ' . $parent_forum_id;
}
}
$forum_topics_sql = ($mode == 'post') ? ', forum_topics = forum_topics + 1' : '';
$forum_sql = array(
'forum_last_post_id' => $post_data['post_id'],
'forum_last_post_time' => $current_time,
'forum_last_poster_id' => intval($user->data['user_id']),
'forum_last_poster_name'=> ($user->data['user_id'] == ANONYMOUS) ? stripslashes($username) : $user->data['username'],
);
$sql = 'UPDATE ' . FORUMS_TABLE . ' SET ' . $db->sql_build_array('UPDATE', $forum_sql) . ', forum_posts = forum_posts + 1' . $forum_topics_sql . ' WHERE forum_id IN (' . $forum_ids . ')';
$db->sql_query($sql);
// Update topic: first/last post info, replies
$topic_sql = array(
'topic_last_post_id' => $post_data['post_id'],
'topic_last_post_time' => $current_time,
'topic_last_poster_id' => intval($user->data['user_id']),
'topic_last_poster_name'=> ($username != '') ? stripslashes($username) : (($user->data['user_id'] == ANONYMOUS) ? '' : stripslashes($user->data['username'])),
);
if ($mode == 'post')
{
$topic_sql = array_merge($topic_sql, array(
'topic_first_post_id' => $post_data['post_id'],
));
}
$topic_replies_sql = ($mode == 'reply') ? ', topic_replies = topic_replies + 1' : '';
$sql = 'UPDATE ' . TOPICS_TABLE . ' SET ' . $db->sql_build_array('UPDATE', $topic_sql) . $topic_replies_sql . ' WHERE topic_id = ' . $post_data['topic_id'];
$db->sql_query($sql);
// Update user post count ... if appropriate
if (!empty($post_data['enable_post_count']) && $user->data['user_id'] != ANONYMOUS)
{
$sql = 'UPDATE ' . USERS_TABLE . '
SET user_posts = user_posts + 1
WHERE user_id = ' . intval($user->data['user_id']);
$db->sql_query($sql);
}
// post counts for index, etc.
if ($mode == 'post')
{
set_config('num_topics', $config['num_topics'] + 1, TRUE);
}
set_config('num_posts', $config['num_posts'] + 1, TRUE);
}
// Topic Notification
if ((!$post_data['notify_set']) && ($post_data['notify']))
{
$sql = "INSERT INTO " . TOPICS_WATCH_TABLE . " (user_id, topic_id)
VALUES (" . $user->data['user_id'] . ", " . $post_data['topic_id'] . ")";
$db->sql_query($sql);
}
else if (($post_data['notify_set']) && (!$post_data['notify']))
{
$sql = "DELETE FROM " . TOPICS_WATCH_TABLE . "
WHERE user_id = " . $user->data['user_id'] . "
AND topic_id = " . $post_data['topic_id'];
$db->sql_query($sql);
}
// Mark this topic as read and posted to.
$mark_mode = ($mode == 'reply' || $mode == 'quote') ? 'post' : 'topic';
markread($mark_mode, $post_data['forum_id'], $post_data['topic_id'], $post_data['post_id']);
$db->sql_transaction('commit');
$template->assign_vars(array(
'META' => '<meta http-equiv="refresh" content="5; url=viewtopic.' . $phpEx . $SID . '&amp;f=' . $post_data['forum_id'] . '&amp;p=' . $post_data['post_id'] . '#' . $post_data['post_id'] . '">')
);
$message = (!empty($post_data['enable_moderate'])) ? 'POST_STORED_MOD' : 'POST_STORED';
$message = $user->lang[$message] . '<br /><br />' . sprintf($user->lang['VIEW_MESSAGE'], '<a href="viewtopic.' . $phpEx . $SID .'&p=' . $post_data['post_id'] . '#' . $post_data['post_id'] . '">', '</a>') . '<br /><br />' . sprintf($user->lang['RETURN_FORUM'], '<a href="viewforum.' . $phpEx . $SID .'&amp;f=' . $post_data['forum_id'] . '">', '</a>');
trigger_error($message);
}
// Delete Poll
function delete_poll($topic_id)
{
global $db;
$sql = "DELETE FROM " . POLL_OPTIONS_TABLE . "
WHERE topic_id = " . $topic_id;
$db->sql_query($sql);
$sql = "DELETE FROM " . POLL_VOTES_TABLE . "
WHERE topic_id = " . $topic_id;
$db->sql_query($sql);
$topic_sql = array(
'poll_title' => '',
'poll_start' => 0,
'poll_length' => 0,
'poll_last_vote' => 0
);
$sql = 'UPDATE ' . TOPICS_TABLE . ' SET ' . $db->sql_build_array('UPDATE', $topic_sql) . ' WHERE topic_id = ' . $topic_id;
$db->sql_query($sql);
}
// Delete Post. Please be sure user have the correct Permissions before calling this function
function delete_post($mode, $post_id, $topic_id, $forum_id, $post_data)
{
global $db, $template, $user, $phpEx, $SID;
$search = new fulltext_search();
$sql = "DELETE FROM " . POSTS_TABLE . "
WHERE post_id = " . $post_id;
$db->sql_query($sql);
// User tries to delete the post twice ? Exit... we do not want the topics table screwed up.
if ($db->sql_affectedrows() == 0)
{
return ($user->lang['ALREADY_DELETED']);
}
$forum_sql = array();
$topic_sql = array();
$user_sql = array();
$forum_update_sql = '';
$user_update_sql = '';
$topic_update_sql = 'topic_replies = topic_replies - 1';
// Only one post... delete topic
if ($post_data['topic_first_post_id'] == $post_data['topic_last_post_id'])
{
$sql = "DELETE FROM " . TOPICS_TABLE . "
WHERE topic_id = " . $topic_id . "
OR topic_moved_id = " . $topic_id;
$db->sql_query($sql);
$sql = "DELETE FROM " . TOPICS_WATCH_TABLE . "
WHERE topic_id = " . $topic_id;
$db->sql_query($sql);
$forum_update_sql .= ($forum_update_sql != '') ? ', ' : '';
$forum_update_sql .= 'forum_topics = forum_topics - 1';
}
// Update Post Statistics
if ($post_data['enable_post_count'])
{
$forum_update_sql .= ($forum_update_sql != '') ? ', ' : '';
$forum_update_sql .= 'forum_posts = forum_posts - 1';
$user_update_sql .= ($user_update_sql != '') ? ', ' : '';
$user_update_sql .= 'user_posts = user_posts - 1';
}
// TODO: delete common words... maybe just call search_tidy ?
// $search->del_words($post_id);
$sql = "SELECT p.post_id, p.poster_id, p.post_username, u.username FROM " . POSTS_TABLE . " p, " . USERS_TABLE . " u
WHERE p.topic_id = " . $topic_id . " AND p.poster_id = u.user_id AND p.post_approved = 1
ORDER BY p.post_time DESC LIMIT 1";
$result = $db->sql_query($sql);
$row = $db->sql_fetchrow($result);
// If Post is first post, but not the only post... make next post the topic starter one. ;)
if (($post_data['topic_first_post_id'] != $post_data['topic_last_post_id']) && ($post_id == $post_data['topic_first_post_id']))
{
$topic_sql = array(
'topic_first_post_id' => intval($row['post_id']),
'topic_first_poster_name' => ( intval($row['poster_id']) == ANONYMOUS) ? trim($row['post_username']) : trim($row['username'])
);
}
$post_data['next_post_id'] = intval($row['post_id']);
// Update Forum, Topic and User with the gathered Informations
if (($forum_update_sql != '') || (count($forum_sql) > 0))
{
$sql = 'UPDATE ' . FORUMS_TABLE . ' SET ' . ( (count($forum_sql) > 0) ? $db->sql_build_array('UPDATE', $forum_sql) : '') .
( ($forum_update_sql != '') ? ((count($forum_sql) > 0) ? ', ' . $forum_update_sql : $forum_update_sql) : '') . '
WHERE forum_id = ' . $forum_id;
$db->sql_query($sql);
}
if (($topic_update_sql != '') || (count($topic_sql) > 0))
{
$sql = 'UPDATE ' . TOPICS_TABLE . ' SET ' . ( (count($topic_sql) > 0) ? $db->sql_build_array('UPDATE', $topic_sql) : '') .
( ($topic_update_sql != '') ? ((count($topic_sql) > 0) ? ', ' . $topic_update_sql : $topic_update_sql) : '') . '
WHERE topic_id = ' . $topic_id;
$db->sql_query($sql);
}
if (($user_update_sql != '') || (count($user_sql) > 0))
{
$sql = 'UPDATE ' . USERS_TABLE . ' SET ' . ( (count($user_sql) > 0) ? $db->sql_build_array('UPDATE', $user_sql) : '') .
( ($user_update_sql != '') ? ((count($user_sql) > 0) ? ', ' . $user_update_sql : $user_update_sql) : '') . '
WHERE user_id = ' . $post_data['user_id'];
$db->sql_query($sql);
}
// Update Forum stats...
if ($post_data['topic_first_post_id'] != $post_data['topic_last_post_id'])
{
update_last_post_information('topic', $topic_id);
}
update_last_post_information('forum', $forum_id);
if ($post_data['topic_first_post_id'] == $post_data['topic_last_post_id'])
{
$meta_info = '<meta http-equiv="refresh" content="5; url=viewforum.' . $phpEx . $SID . '&amp;f=' . $forum_id . '">';
$message = $user->lang['DELETED'];
}
else
{
$meta_info = '<meta http-equiv="refresh" content="5; url=viewtopic.' . $phpEx . $SID . '&amp;f=' . $forum_id . '&amp;t=' . $topic_id . '&amp;p=' . $post_data['next_post_id'] . '#' . $post_data['next_post_id'] . '">';
$message = $user->lang['DELETED'] . '<br /><br />' . sprintf($user->lang['RETURN_TOPIC'], '<a href="viewtopic.' . $phpEx . $SID . '&amp;f=' . $forum_id . '&amp;t=' . $topic_id . '&amp;p=' . $post_data['next_post_id'] . '#' . $post_data['next_post_id'] . '">', '</a>');
}
$template->assign_vars(array(
'META' => $meta_info)
);
$message .= '<br /><br />' . sprintf($user->lang['RETURN_FORUM'], '<a href="viewforum.' . $phpEx . $SID . '&amp;f=' . $forum_id . '">', '</a>');
trigger_error($message);
return;
}
}
// Parses a given message and updates/maintains the fulltext tables
class fulltext_search
{
function split_words(&$text)
{
global $user, $config;
static $drop_char_match, $drop_char_replace, $stopwords, $synonyms;
if (empty($drop_char_match))
{
$drop_char_match = array('^', '$', '&', '(', ')', '<', '>', '`', '\'', '"', '|', ',', '@', '_', '?', '%', '-', '~', '+', '.', '[', ']', '{', '}', ':', '\\', '/', '=', '#', '\'', ';', '!', '*');
$drop_char_replace = array(' ', ' ', ' ', ' ', ' ', ' ', ' ', '', '', ' ', ' ', ' ', ' ', '', ' ', ' ', '', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', '' , ' ', ' ', ' ', ' ', ' ', ' ', ' ');
$stopwords = @file($user->lang_path . '/search_stopwords.txt');
$synonyms = @file($user->lang_path . '/search_synonyms.txt');
}
$match = array();
// New lines, carriage returns
$match[] = "#[\n\r]+#";
// NCRs like &nbsp; etc.
$match[] = '#&[\#a-z0-9]+?;#i';
// URL's
$match[] = '#\b[\w]+:\/\/[a-z0-9\.\-]+(\/[a-z0-9\?\.%_\-\+=&\/]+)?#';
// BBcode
$match[] = '#\[img:[a-z0-9]{10,}\].*?\[\/img:[a-z0-9]{10,}\]#';
$match[] = '#\[\/?url(=.*?)?\]#';
$match[] = '#\[\/?[a-z\*=\+\-]+(\:?[0-9a-z]+)?:[a-z0-9]{10,}(\:[a-z0-9]+)?=?.*?\]#';
// Sequences < min_search_chars & < max_search_chars
$match[] = '#\b([a-z0-9]{1,' . $config['min_search_chars'] . '}|[a-z0-9]{' . $config['max_search_chars'] . ',})\b#is';
$text = preg_replace($match, ' ', ' ' . strtolower($text) . ' ');
// Filter out non-alphabetical chars
$text = str_replace($drop_char_match, $drop_char_replace, $text);
if (!empty($stopwords_list))
{
$text = str_replace($stopwords, '', $text);
}
if (!empty($synonyms))
{
for ($j = 0; $j < count($synonyms); $j++)
{
list($replace_synonym, $match_synonym) = split(' ', trim(strtolower($synonyms[$j])));
if ( $mode == 'post' || ( $match_synonym != 'not' && $match_synonym != 'and' && $match_synonym != 'or' ) )
{
$text = preg_replace('#\b' . trim($match_synonym) . '\b#', ' ' . trim($replace_synonym) . ' ', $text);
}
}
}
preg_match_all('/\b([\w]+)\b/', $text, $split_entries);
return array_unique($split_entries[1]);
}
function add(&$mode, &$post_id, &$message, &$subject)
{
global $config, $db;
// $mtime = explode(' ', microtime());
// $starttime = $mtime[1] + $mtime[0];
// Split old and new post/subject to obtain array of 'words'
$split_text = $this->split_words($message);
$split_title = ($subject) ? $this->split_words($subject) : array();
$words = array();
if ($mode == 'edit')
{
$sql = "SELECT w.word_id, w.word_text, m.title_match
FROM " . SEARCH_WORD_TABLE . " w, " . SEARCH_MATCH_TABLE . " m
WHERE m.post_id = " . intval($post_id) . "
AND w.word_id = m.word_id";
$result = $db->sql_query($sql);
$cur_words = array();
while ($row = $db->sql_fetchrow($result))
{
$which = ($row['title_match']) ? 'title' : 'post';
$cur_words[$which][$row['word_text']] = $row['word_id'];
}
$db->sql_freeresult($result);
$words['add']['post'] = array_diff($split_text, array_keys($cur_words['post']));
$words['add']['title'] = array_diff($split_title, array_keys($cur_words['title']));
$words['del']['post'] = array_diff(array_keys($cur_words['post']), $split_text);
$words['del']['title'] = array_diff(array_keys($cur_words['title']), $split_title);
}
else
{
$words['add']['post'] = $split_text;
$words['add']['title'] = $split_title;
$words['del']['post'] = array();
$words['del']['title'] = array();
}
unset($split_text);
unset($split_title);
// Get unique words from the above arrays
$unique_add_words = array_unique(array_merge($words['add']['post'], $words['add']['title']));
// We now have unique arrays of all words to be added and removed and
// individual arrays of added and removed words for text and title. What
// we need to do now is add the new words (if they don't already exist)
// and then add (or remove) matches between the words and this post
if (sizeof($unique_add_words))
{
$sql = "SELECT word_id, word_text
FROM " . SEARCH_WORD_TABLE . "
WHERE word_text IN (" . implode(', ', preg_replace('#^(.*)$#', '\'\1\'', $unique_add_words)) . ")";
$result = $db->sql_query($sql);
$word_ids = array();
while ($row = $db->sql_fetchrow($result))
{
$word_ids[$row['word_text']] = $row['word_id'];
}
$db->sql_freeresult($result);
$new_words = array_diff($unique_add_words, array_keys($word_ids));
unset($unique_add_words);
if (sizeof($new_words))
{
switch (SQL_LAYER)
{
case 'postgresql':
case 'msaccess':
case 'mssql-odbc':
case 'oracle':
case 'db2':
foreach ($new_words as $word)
{
$sql = "INSERT INTO " . SEARCH_WORD_TABLE . " (word_text)
VALUES ('" . $word . "')";
$db->sql_query($sql);
}
break;
case 'mysql':
case 'mysql4':
$sql = "INSERT INTO " . SEARCH_WORD_TABLE . " (word_text)
VALUES " . implode(', ', preg_replace('#^(.*)$#', '(\'\1\')', $new_words));
$db->sql_query($sql);
break;
case 'mssql':
$sql = "INSERT INTO " . SEARCH_WORD_TABLE . " (word_text)
VALUES " . implode(' UNION ALL ', preg_replace('#^(.*)$#', 'SELECT \'\1\'', $new_words));
$db->sql_query($sql);
break;
}
}
unset($new_words);
}
foreach ($words['del'] as $word_in => $word_ary)
{
$title_match = ($word_in == 'title') ? 1 : 0;
$sql = '';
if (sizeof($word_ary))
{
foreach ($word_ary as $word)
{
$sql .= (($sql != '') ? ', ' : '') . $cur_words[$word_in][$word];
}
$sql = "DELETE FROM " . SEARCH_MATCH_TABLE . " WHERE word_id IN ($sql) AND post_id = " . intval($post_id) . " AND title_match = $title_match";
$db->sql_query($sql);
}
}
foreach ($words['add'] as $word_in => $word_ary)
{
$title_match = ( $word_in == 'title' ) ? 1 : 0;
if (sizeof($word_ary))
{
$sql = "INSERT INTO " . SEARCH_MATCH_TABLE . " (post_id, word_id, title_match) SELECT $post_id, word_id, $title_match FROM " . SEARCH_WORD_TABLE . " WHERE word_text IN (" . implode(', ', preg_replace('#^(.*)$#', '\'\1\'', $word_ary)) . ")";
$db->sql_query($sql);
}
}
unset($words);
// $mtime = explode(' ', microtime());
// echo "Search parser time taken >> " . ($mtime[1] + $mtime[0] - $starttime);
// Run the cleanup infrequently, once per session cleanup
if ($config['search_last_gc'] < time() - $config['search_gc'])
{
// $this->search_tidy();
}
}
// Tidy up indexes, tag 'common words', remove
// words no longer referenced in the match table, etc.
function search_tidy()
{
global $db;
// Remove common (> 60% of posts ) words
$result = $db->sql_query("SELECT SUM(forum_posts) AS total_posts FROM " . FORUMS_TABLE);
$row = $db->sql_fetchrow($result);
if ($row['total_posts'] >= 100)
{
$sql = "SELECT word_id
FROM " . SEARCH_MATCH_TABLE . "
GROUP BY word_id
HAVING COUNT(word_id) > " . floor($row['total_posts'] * 0.6);
$result = $db->sql_query($sql);
$in_sql = '';
while ($row = $db->sql_fetchrow($result))
{
$in_sql .= (( $in_sql != '') ? ', ' : '') . $row['word_id'];
}
$db->sql_freeresult($result);
if ($in_sql)
{
$sql = "UPDATE " . SEARCH_WORD_TABLE . "
SET word_common = " . TRUE . "
WHERE word_id IN ($in_sql)";
$db->sql_query($sql);
$sql = "DELETE FROM " . SEARCH_MATCH_TABLE . "
WHERE word_id IN ($in_sql)";
$db->sql_query($sql);
}
}
// Remove words with no matches ... this is a potentially nasty query
$sql = "SELECT w.word_id
FROM ( " . SEARCH_WORD_TABLE . " w
LEFT JOIN " . SEARCH_MATCH_TABLE . " m ON w.word_id = m.word_id
AND m.word_id IS NULL
GROUP BY m.word_id";
$result = $db->sql_query($sql);
if ($row = $db->sql_fetchrow($result))
{
$in_sql = '';
do
{
$in_sql .= ', ' . $row['word_id'];
}
while ($row = $db->sql_fetchrow($result));
$sql = 'DELETE FROM ' . SEARCH_WORD_TABLE . '
WHERE word_id IN (' . substr($in_sql, 2) . ')';
$db->sql_query($sql);
}
$db->sql_freeresult($result);
}
}
?>
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