/forum/include/functions.php
PHP | 1114 lines | 677 code | 228 blank | 209 comment | 174 complexity | 93ddb4bcab13c208cbf9163cdf0f7085 MD5 | raw file
- <?php
- /***********************************************************************
- Copyright (C) 2002-2008 PunBB
- This file is part of PunBB.
- PunBB 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.
- PunBB is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- ************************************************************************/
- //
- // Cookie stuff!
- //
- function check_cookie(&$pun_user)
- {
- global $db, $db_type, $pun_config, $cookie_name, $cookie_seed;
- $now = time();
- $expire = $now + 31536000; // The cookie expires after a year
- // We assume it's a guest
- $cookie = array('user_id' => 1, 'password_hash' => 'Guest');
- // If a cookie is set, we get the user_id and password hash from it
- if (isset($_COOKIE[$cookie_name]))
- list($cookie['user_id'], $cookie['password_hash']) = @unserialize($_COOKIE[$cookie_name]);
- if ($cookie['user_id'] > 1)
- {
- // Check if there's a user with the user ID and password hash from the cookie
- $result = $db->query('SELECT u.*, g.*, o.logged, o.idle FROM '.$db->prefix.'users AS u INNER JOIN '.$db->prefix.'groups AS g ON u.group_id=g.g_id LEFT JOIN '.$db->prefix.'online AS o ON o.user_id=u.id WHERE u.id='.intval($cookie['user_id'])) or error('Unable to fetch user information', __FILE__, __LINE__, $db->error());
- $pun_user = $db->fetch_assoc($result);
- // If user authorisation failed
- if (!isset($pun_user['id']) || md5($cookie_seed.$pun_user['password']) !== $cookie['password_hash'])
- {
- pun_setcookie(1, md5(uniqid(rand(), true)), $expire);
- set_default_user();
- return;
- }
- // Set a default language if the user selected language no longer exists
- if (!@file_exists(PUN_ROOT.'lang/'.$pun_user['language']))
- $pun_user['language'] = $pun_config['o_default_lang'];
- // Set a default style if the user selected style no longer exists
- if (!@file_exists(PUN_ROOT.'style/'.$pun_user['style'].'.css'))
- $pun_user['style'] = $pun_config['o_default_style'];
- if (!$pun_user['disp_topics'])
- $pun_user['disp_topics'] = $pun_config['o_disp_topics_default'];
- if (!$pun_user['disp_posts'])
- $pun_user['disp_posts'] = $pun_config['o_disp_posts_default'];
- if ($pun_user['save_pass'] == '0')
- $expire = 0;
- // Define this if you want this visit to affect the online list and the users last visit data
- if (!defined('PUN_QUIET_VISIT'))
- {
- // Update the online list
- if (!$pun_user['logged'])
- {
- $pun_user['logged'] = $now;
- // With MySQL/MySQLi, REPLACE INTO avoids a user having two rows in the online table
- switch ($db_type)
- {
- case 'mysql':
- case 'mysqli':
- $db->query('REPLACE INTO '.$db->prefix.'online (user_id, ident, logged) VALUES('.$pun_user['id'].', \''.$db->escape($pun_user['username']).'\', '.$pun_user['logged'].')') or error('Unable to insert into online list', __FILE__, __LINE__, $db->error());
- break;
- default:
- $db->query('INSERT INTO '.$db->prefix.'online (user_id, ident, logged) VALUES('.$pun_user['id'].', \''.$db->escape($pun_user['username']).'\', '.$pun_user['logged'].')') or error('Unable to insert into online list', __FILE__, __LINE__, $db->error());
- break;
- }
- }
- else
- {
- // Special case: We've timed out, but no other user has browsed the forums since we timed out
- if ($pun_user['logged'] < ($now-$pun_config['o_timeout_visit']))
- {
- $db->query('UPDATE '.$db->prefix.'users SET last_visit='.$pun_user['logged'].' WHERE id='.$pun_user['id']) or error('Unable to update user visit data', __FILE__, __LINE__, $db->error());
- $pun_user['last_visit'] = $pun_user['logged'];
- }
- $idle_sql = ($pun_user['idle'] == '1') ? ', idle=0' : '';
- $db->query('UPDATE '.$db->prefix.'online SET logged='.$now.$idle_sql.' WHERE user_id='.$pun_user['id']) or error('Unable to update online list', __FILE__, __LINE__, $db->error());
- }
- }
- $pun_user['is_guest'] = false;
- }
- else
- set_default_user();
- }
- //
- // Fill $pun_user with default values (for guests)
- //
- function set_default_user()
- {
- global $db, $db_type, $pun_user, $pun_config;
- $remote_addr = get_remote_address();
- // Fetch guest user
- $result = $db->query('SELECT u.*, g.*, o.logged FROM '.$db->prefix.'users AS u INNER JOIN '.$db->prefix.'groups AS g ON u.group_id=g.g_id LEFT JOIN '.$db->prefix.'online AS o ON o.ident=\''.$remote_addr.'\' WHERE u.id=1') or error('Unable to fetch guest information', __FILE__, __LINE__, $db->error());
- if (!$db->num_rows($result))
- exit('Unable to fetch guest information. The table \''.$db->prefix.'users\' must contain an entry with id = 1 that represents anonymous users.');
- $pun_user = $db->fetch_assoc($result);
- // Update online list
- if (!$pun_user['logged'])
- {
- $pun_user['logged'] = time();
- // With MySQL/MySQLi, REPLACE INTO avoids a user having two rows in the online table
- switch ($db_type)
- {
- case 'mysql':
- case 'mysqli':
- $db->query('REPLACE INTO '.$db->prefix.'online (user_id, ident, logged) VALUES(1, \''.$db->escape($remote_addr).'\', '.$pun_user['logged'].')') or error('Unable to insert into online list', __FILE__, __LINE__, $db->error());
- break;
- default:
- $db->query('INSERT INTO '.$db->prefix.'online (user_id, ident, logged) VALUES(1, \''.$db->escape($remote_addr).'\', '.$pun_user['logged'].')') or error('Unable to insert into online list', __FILE__, __LINE__, $db->error());
- break;
- }
- }
- else
- $db->query('UPDATE '.$db->prefix.'online SET logged='.time().' WHERE ident=\''.$db->escape($remote_addr).'\'') or error('Unable to update online list', __FILE__, __LINE__, $db->error());
- $pun_user['disp_topics'] = $pun_config['o_disp_topics_default'];
- $pun_user['disp_posts'] = $pun_config['o_disp_posts_default'];
- $pun_user['timezone'] = $pun_config['o_server_timezone'];
- $pun_user['language'] = $pun_config['o_default_lang'];
- $pun_user['style'] = $pun_config['o_default_style'];
- $pun_user['is_guest'] = true;
- }
- //
- // Set a cookie, PunBB style!
- //
- function pun_setcookie($user_id, $password_hash, $expire)
- {
- global $cookie_name, $cookie_path, $cookie_domain, $cookie_secure, $cookie_seed;
- // Enable sending of a P3P header by removing // from the following line (try this if login is failing in IE6)
- // @header('P3P: CP="CUR ADM"');
- if (version_compare(PHP_VERSION, '5.2.0', '>='))
- setcookie($cookie_name, serialize(array($user_id, md5($cookie_seed.$password_hash))), $expire, $cookie_path, $cookie_domain, $cookie_secure, true);
- else
- setcookie($cookie_name, serialize(array($user_id, md5($cookie_seed.$password_hash))), $expire, $cookie_path.'; HttpOnly', $cookie_domain, $cookie_secure);
- }
- //
- // Check whether the connecting user is banned (and delete any expired bans while we're at it)
- //
- function check_bans()
- {
- global $db, $pun_config, $lang_common, $pun_user, $pun_bans;
- // Admins aren't affected
- if ($pun_user['g_id'] == PUN_ADMIN || !$pun_bans)
- return;
- // Add a dot at the end of the IP address to prevent banned address 192.168.0.5 from matching e.g. 192.168.0.50
- $user_ip = get_remote_address().'.';
- $bans_altered = false;
- foreach ($pun_bans as $cur_ban)
- {
- // Has this ban expired?
- if ($cur_ban['expire'] != '' && $cur_ban['expire'] <= time())
- {
- $db->query('DELETE FROM '.$db->prefix.'bans WHERE id='.$cur_ban['id']) or error('Unable to delete expired ban', __FILE__, __LINE__, $db->error());
- $bans_altered = true;
- continue;
- }
- if ($cur_ban['username'] != '' && !strcasecmp($pun_user['username'], $cur_ban['username']))
- {
- $db->query('DELETE FROM '.$db->prefix.'online WHERE ident=\''.$db->escape($pun_user['username']).'\'') or error('Unable to delete from online list', __FILE__, __LINE__, $db->error());
- message($lang_common['Ban message'].' '.(($cur_ban['expire'] != '') ? $lang_common['Ban message 2'].' '.strtolower(format_time($cur_ban['expire'], true)).'. ' : '').(($cur_ban['message'] != '') ? $lang_common['Ban message 3'].'<br /><br /><strong>'.pun_htmlspecialchars($cur_ban['message']).'</strong><br /><br />' : '<br /><br />').$lang_common['Ban message 4'].' <a href="mailto:'.$pun_config['o_admin_email'].'">'.$pun_config['o_admin_email'].'</a>.', true);
- }
- if ($cur_ban['ip'] != '')
- {
- $cur_ban_ips = explode(' ', $cur_ban['ip']);
- for ($i = 0; $i < count($cur_ban_ips); ++$i)
- {
- $cur_ban_ips[$i] = $cur_ban_ips[$i].'.';
- if (substr($user_ip, 0, strlen($cur_ban_ips[$i])) == $cur_ban_ips[$i])
- {
- $db->query('DELETE FROM '.$db->prefix.'online WHERE ident=\''.$db->escape($pun_user['username']).'\'') or error('Unable to delete from online list', __FILE__, __LINE__, $db->error());
- message($lang_common['Ban message'].' '.(($cur_ban['expire'] != '') ? $lang_common['Ban message 2'].' '.strtolower(format_time($cur_ban['expire'], true)).'. ' : '').(($cur_ban['message'] != '') ? $lang_common['Ban message 3'].'<br /><br /><strong>'.pun_htmlspecialchars($cur_ban['message']).'</strong><br /><br />' : '<br /><br />').$lang_common['Ban message 4'].' <a href="mailto:'.$pun_config['o_admin_email'].'">'.$pun_config['o_admin_email'].'</a>.', true);
- }
- }
- }
- }
- // If we removed any expired bans during our run-through, we need to regenerate the bans cache
- if ($bans_altered)
- {
- require_once PUN_ROOT.'include/cache.php';
- generate_bans_cache();
- }
- }
- //
- // Update "Users online"
- //
- function update_users_online()
- {
- global $db, $pun_config, $pun_user;
- $now = time();
- // Fetch all online list entries that are older than "o_timeout_online"
- $result = $db->query('SELECT * FROM '.$db->prefix.'online WHERE logged<'.($now-$pun_config['o_timeout_online'])) or error('Unable to fetch old entries from online list', __FILE__, __LINE__, $db->error());
- while ($cur_user = $db->fetch_assoc($result))
- {
- // If the entry is a guest, delete it
- if ($cur_user['user_id'] == '1')
- $db->query('DELETE FROM '.$db->prefix.'online WHERE ident=\''.$db->escape($cur_user['ident']).'\'') or error('Unable to delete from online list', __FILE__, __LINE__, $db->error());
- else
- {
- // If the entry is older than "o_timeout_visit", update last_visit for the user in question, then delete him/her from the online list
- if ($cur_user['logged'] < ($now-$pun_config['o_timeout_visit']))
- {
- $db->query('UPDATE '.$db->prefix.'users SET last_visit='.$cur_user['logged'].' WHERE id='.$cur_user['user_id']) or error('Unable to update user visit data', __FILE__, __LINE__, $db->error());
- $db->query('DELETE FROM '.$db->prefix.'online WHERE user_id='.$cur_user['user_id']) or error('Unable to delete from online list', __FILE__, __LINE__, $db->error());
- }
- else if ($cur_user['idle'] == '0')
- $db->query('UPDATE '.$db->prefix.'online SET idle=1 WHERE user_id='.$cur_user['user_id']) or error('Unable to insert into online list', __FILE__, __LINE__, $db->error());
- }
- }
- }
- //
- // Generate the "navigator" that appears at the top of every page
- //
- function generate_navlinks()
- {
- global $pun_config, $lang_common, $pun_user;
- // Index and Userlist should always be displayed
- $links[] = '<li id="navindex"><a href="index.php">'.$lang_common['Index'].'</a>';
- $links[] = '<li id="navuserlist"><a href="userlist.php">'.$lang_common['User list'].'</a>';
- if ($pun_config['o_rules'] == '1')
- $links[] = '<li id="navrules"><a href="misc.php?action=rules">'.$lang_common['Rules'].'</a>';
- if ($pun_user['is_guest'])
- {
- if ($pun_user['g_search'] == '1')
- $links[] = '<li id="navsearch"><a href="search.php">'.$lang_common['Search'].'</a>';
- $links[] = '<li id="navregister"><a href="register.php">'.$lang_common['Register'].'</a>';
- $links[] = '<li id="navlogin"><a href="login.php">'.$lang_common['Login'].'</a>';
- $info = $lang_common['Not logged in'];
- }
- else
- {
- if ($pun_user['g_id'] > PUN_MOD)
- {
- if ($pun_user['g_search'] == '1')
- $links[] = '<li id="navsearch"><a href="search.php">'.$lang_common['Search'].'</a>';
- $links[] = '<li id="navprofile"><a href="profile.php?id='.$pun_user['id'].'">'.$lang_common['Profile'].'</a>';
- $links[] = '<li id="navlogout"><a href="login.php?action=out&id='.$pun_user['id'].'&csrf_token='.sha1($pun_user['id'].sha1(get_remote_address())).'">'.$lang_common['Logout'].'</a>';
- }
- else
- {
- $links[] = '<li id="navsearch"><a href="search.php">'.$lang_common['Search'].'</a>';
- $links[] = '<li id="navprofile"><a href="profile.php?id='.$pun_user['id'].'">'.$lang_common['Profile'].'</a>';
- $links[] = '<li id="navadmin"><a href="admin_index.php">'.$lang_common['Admin'].'</a>';
- $links[] = '<li id="navlogout"><a href="login.php?action=out&id='.$pun_user['id'].'&csrf_token='.sha1($pun_user['id'].sha1(get_remote_address())).'">'.$lang_common['Logout'].'</a>';
- }
- }
- // Are there any additional navlinks we should insert into the array before imploding it?
- if ($pun_config['o_additional_navlinks'] != '')
- {
- if (preg_match_all('#([0-9]+)\s*=\s*(.*?)\n#s', $pun_config['o_additional_navlinks']."\n", $extra_links))
- {
- // Insert any additional links into the $links array (at the correct index)
- for ($i = 0; $i < count($extra_links[1]); ++$i)
- array_splice($links, $extra_links[1][$i], 0, array('<li id="navextra'.($i + 1).'">'.$extra_links[2][$i]));
- }
- }
- return '<ul>'."\n\t\t\t\t".implode($lang_common['Link separator'].'</li>'."\n\t\t\t\t", $links).'</li>'."\n\t\t\t".'</ul>';
- }
- //
- // Display the profile navigation menu
- //
- function generate_profile_menu($page = '')
- {
- global $lang_profile, $pun_config, $pun_user, $id;
- ?>
- <div id="profile" class="block2col">
- <div class="blockmenu">
- <h2><span><?php echo $lang_profile['Profile menu'] ?></span></h2>
- <div class="box">
- <div class="inbox">
- <ul>
- <li<?php if ($page == 'essentials') echo ' class="isactive"'; ?>><a href="profile.php?section=essentials&id=<?php echo $id ?>"><?php echo $lang_profile['Section essentials'] ?></a></li>
- <li<?php if ($page == 'personal') echo ' class="isactive"'; ?>><a href="profile.php?section=personal&id=<?php echo $id ?>"><?php echo $lang_profile['Section personal'] ?></a></li>
- <li<?php if ($page == 'messaging') echo ' class="isactive"'; ?>><a href="profile.php?section=messaging&id=<?php echo $id ?>"><?php echo $lang_profile['Section messaging'] ?></a></li>
- <li<?php if ($page == 'personality') echo ' class="isactive"'; ?>><a href="profile.php?section=personality&id=<?php echo $id ?>"><?php echo $lang_profile['Section personality'] ?></a></li>
- <li<?php if ($page == 'display') echo ' class="isactive"'; ?>><a href="profile.php?section=display&id=<?php echo $id ?>"><?php echo $lang_profile['Section display'] ?></a></li>
- <li<?php if ($page == 'privacy') echo ' class="isactive"'; ?>><a href="profile.php?section=privacy&id=<?php echo $id ?>"><?php echo $lang_profile['Section privacy'] ?></a></li>
- <?php if ($pun_user['g_id'] == PUN_ADMIN || ($pun_user['g_id'] == PUN_MOD && $pun_config['p_mod_ban_users'] == '1')): ?> <li<?php if ($page == 'admin') echo ' class="isactive"'; ?>><a href="profile.php?section=admin&id=<?php echo $id ?>"><?php echo $lang_profile['Section admin'] ?></a></li>
- <?php endif; ?> </ul>
- </div>
- </div>
- </div>
- <?php
- }
- //
- // Update posts, topics, last_post, last_post_id and last_poster for a forum
- //
- function update_forum($forum_id)
- {
- global $db;
- $result = $db->query('SELECT COUNT(id), SUM(num_replies) FROM '.$db->prefix.'topics WHERE forum_id='.$forum_id) or error('Unable to fetch forum topic count', __FILE__, __LINE__, $db->error());
- list($num_topics, $num_posts) = $db->fetch_row($result);
- $num_posts = $num_posts + $num_topics; // $num_posts is only the sum of all replies (we have to add the topic posts)
- $result = $db->query('SELECT last_post, last_post_id, last_poster FROM '.$db->prefix.'topics WHERE forum_id='.$forum_id.' AND moved_to IS NULL ORDER BY last_post DESC LIMIT 1') or error('Unable to fetch last_post/last_post_id/last_poster', __FILE__, __LINE__, $db->error());
- if ($db->num_rows($result)) // There are topics in the forum
- {
- list($last_post, $last_post_id, $last_poster) = $db->fetch_row($result);
- $db->query('UPDATE '.$db->prefix.'forums SET num_topics='.$num_topics.', num_posts='.$num_posts.', last_post='.$last_post.', last_post_id='.$last_post_id.', last_poster=\''.$db->escape($last_poster).'\' WHERE id='.$forum_id) or error('Unable to update last_post/last_post_id/last_poster', __FILE__, __LINE__, $db->error());
- }
- else // There are no topics
- $db->query('UPDATE '.$db->prefix.'forums SET num_topics='.$num_topics.', num_posts='.$num_posts.', last_post=NULL, last_post_id=NULL, last_poster=NULL WHERE id='.$forum_id) or error('Unable to update last_post/last_post_id/last_poster', __FILE__, __LINE__, $db->error());
- }
- //
- // Delete a topic and all of it's posts
- //
- function delete_topic($topic_id)
- {
- global $db;
- // Delete the topic and any redirect topics
- $db->query('DELETE FROM '.$db->prefix.'topics WHERE id='.$topic_id.' OR moved_to='.$topic_id) or error('Unable to delete topic', __FILE__, __LINE__, $db->error());
- // Create a list of the post ID's in this topic
- $post_ids = '';
- $result = $db->query('SELECT id FROM '.$db->prefix.'posts WHERE topic_id='.$topic_id) or error('Unable to fetch posts', __FILE__, __LINE__, $db->error());
- while ($row = $db->fetch_row($result))
- $post_ids .= ($post_ids != '') ? ','.$row[0] : $row[0];
- // Make sure we have a list of post ID's
- if ($post_ids != '')
- {
- strip_search_index($post_ids);
- // Delete posts in topic
- $db->query('DELETE FROM '.$db->prefix.'posts WHERE topic_id='.$topic_id) or error('Unable to delete posts', __FILE__, __LINE__, $db->error());
- }
- // Delete any subscriptions for this topic
- $db->query('DELETE FROM '.$db->prefix.'subscriptions WHERE topic_id='.$topic_id) or error('Unable to delete subscriptions', __FILE__, __LINE__, $db->error());
- }
- //
- // Delete a single post
- //
- function delete_post($post_id, $topic_id)
- {
- global $db;
- $result = $db->query('SELECT id, poster, posted FROM '.$db->prefix.'posts WHERE topic_id='.$topic_id.' ORDER BY id DESC LIMIT 2') or error('Unable to fetch post info', __FILE__, __LINE__, $db->error());
- list($last_id, ,) = $db->fetch_row($result);
- list($second_last_id, $second_poster, $second_posted) = $db->fetch_row($result);
- // Delete the post
- $db->query('DELETE FROM '.$db->prefix.'posts WHERE id='.$post_id) or error('Unable to delete post', __FILE__, __LINE__, $db->error());
- strip_search_index($post_id);
- // Count number of replies in the topic
- $result = $db->query('SELECT COUNT(id) FROM '.$db->prefix.'posts WHERE topic_id='.$topic_id) or error('Unable to fetch post count for topic', __FILE__, __LINE__, $db->error());
- $num_replies = $db->result($result, 0) - 1;
- // If the message we deleted is the most recent in the topic (at the end of the topic)
- if ($last_id == $post_id)
- {
- // If there is a $second_last_id there is more than 1 reply to the topic
- if (!empty($second_last_id))
- $db->query('UPDATE '.$db->prefix.'topics SET last_post='.$second_posted.', last_post_id='.$second_last_id.', last_poster=\''.$db->escape($second_poster).'\', num_replies='.$num_replies.' WHERE id='.$topic_id) or error('Unable to update topic', __FILE__, __LINE__, $db->error());
- else
- // We deleted the only reply, so now last_post/last_post_id/last_poster is posted/id/poster from the topic itself
- $db->query('UPDATE '.$db->prefix.'topics SET last_post=posted, last_post_id=id, last_poster=poster, num_replies='.$num_replies.' WHERE id='.$topic_id) or error('Unable to update topic', __FILE__, __LINE__, $db->error());
- }
- else
- // Otherwise we just decrement the reply counter
- $db->query('UPDATE '.$db->prefix.'topics SET num_replies='.$num_replies.' WHERE id='.$topic_id) or error('Unable to update topic', __FILE__, __LINE__, $db->error());
- }
- //
- // Replace censored words in $text
- //
- function censor_words($text)
- {
- global $db;
- static $search_for, $replace_with;
- // If not already built in a previous call, build an array of censor words and their replacement text
- if (!isset($search_for))
- {
- $result = $db->query('SELECT search_for, replace_with FROM '.$db->prefix.'censoring') or error('Unable to fetch censor word list', __FILE__, __LINE__, $db->error());
- $num_words = $db->num_rows($result);
- $search_for = array();
- for ($i = 0; $i < $num_words; ++$i)
- {
- list($search_for[$i], $replace_with[$i]) = $db->fetch_row($result);
- $search_for[$i] = '/\b('.str_replace('\*', '\w*?', preg_quote($search_for[$i], '/')).')\b/i';
- }
- }
- if (!empty($search_for))
- $text = substr(preg_replace($search_for, $replace_with, ' '.$text.' '), 1, -1);
- return $text;
- }
- //
- // Determines the correct title for $user
- // $user must contain the elements 'username', 'title', 'posts', 'g_id' and 'g_user_title'
- //
- function get_title($user)
- {
- global $db, $pun_config, $pun_bans, $lang_common;
- static $ban_list, $pun_ranks;
- // If not already built in a previous call, build an array of lowercase banned usernames
- if (empty($ban_list))
- {
- $ban_list = array();
- foreach ($pun_bans as $cur_ban)
- $ban_list[] = strtolower($cur_ban['username']);
- }
- // If not already loaded in a previous call, load the cached ranks
- if ($pun_config['o_ranks'] == '1' && empty($pun_ranks))
- {
- @include PUN_ROOT.'cache/cache_ranks.php';
- if (!defined('PUN_RANKS_LOADED'))
- {
- require_once PUN_ROOT.'include/cache.php';
- generate_ranks_cache();
- require PUN_ROOT.'cache/cache_ranks.php';
- }
- }
- // If the user has a custom title
- if ($user['title'] != '')
- $user_title = pun_htmlspecialchars($user['title']);
- // If the user is banned
- else if (in_array(strtolower($user['username']), $ban_list))
- $user_title = $lang_common['Banned'];
- // If the user group has a default user title
- else if ($user['g_user_title'] != '')
- $user_title = pun_htmlspecialchars($user['g_user_title']);
- // If the user is a guest
- else if ($user['g_id'] == PUN_GUEST)
- $user_title = $lang_common['Guest'];
- else
- {
- // Are there any ranks?
- if ($pun_config['o_ranks'] == '1' && !empty($pun_ranks))
- {
- @reset($pun_ranks);
- while (list(, $cur_rank) = @each($pun_ranks))
- {
- if (intval($user['num_posts']) >= $cur_rank['min_posts'])
- $user_title = pun_htmlspecialchars($cur_rank['rank']);
- }
- }
- // If the user didn't "reach" any rank (or if ranks are disabled), we assign the default
- if (!isset($user_title))
- $user_title = $lang_common['Member'];
- }
- return $user_title;
- }
- //
- // Generate a string with numbered links (for multipage scripts)
- //
- function paginate($num_pages, $cur_page, $link_to)
- {
- $pages = array();
- $link_to_all = false;
- // If $cur_page == -1, we link to all pages (used in viewforum.php)
- if ($cur_page == -1)
- {
- $cur_page = 1;
- $link_to_all = true;
- }
- if ($num_pages <= 1)
- $pages = array('<strong>1</strong>');
- else
- {
- if ($cur_page > 3)
- {
- $pages[] = '<a href="'.$link_to.'&p=1">1</a>';
- if ($cur_page != 4)
- $pages[] = '…';
- }
- // Don't ask me how the following works. It just does, OK? :-)
- for ($current = $cur_page - 2, $stop = $cur_page + 3; $current < $stop; ++$current)
- {
- if ($current < 1 || $current > $num_pages)
- continue;
- else if ($current != $cur_page || $link_to_all)
- $pages[] = '<a href="'.$link_to.'&p='.$current.'">'.$current.'</a>';
- else
- $pages[] = '<strong>'.$current.'</strong>';
- }
- if ($cur_page <= ($num_pages-3))
- {
- if ($cur_page != ($num_pages-3))
- $pages[] = '…';
- $pages[] = '<a href="'.$link_to.'&p='.$num_pages.'">'.$num_pages.'</a>';
- }
- }
- return implode(' ', $pages);
- }
- //
- // Display a message
- //
- function message($message, $no_back_link = false)
- {
- global $db, $lang_common, $pun_config, $pun_start, $tpl_main;
- if (!defined('PUN_HEADER'))
- {
- global $pun_user;
- $page_title = pun_htmlspecialchars($pun_config['o_board_title']).' / '.$lang_common['Info'];
- require PUN_ROOT.'header.php';
- }
- ?>
- <div id="msg" class="block">
- <h2><span><?php echo $lang_common['Info'] ?></span></h2>
- <div class="box">
- <div class="inbox">
- <p><?php echo $message ?></p>
- <?php if (!$no_back_link): ?> <p><a href="javascript: history.go(-1)"><?php echo $lang_common['Go back'] ?></a></p>
- <?php endif; ?> </div>
- </div>
- </div>
- <?php
- require PUN_ROOT.'footer.php';
- }
- //
- // Format a time string according to $time_format and timezones
- //
- function format_time($timestamp, $date_only = false)
- {
- global $pun_config, $lang_common, $pun_user;
- if ($timestamp == '')
- return $lang_common['Never'];
- $diff = ($pun_user['timezone'] - $pun_config['o_server_timezone']) * 3600;
- $timestamp += $diff;
- $now = time();
- $date = date($pun_config['o_date_format'], $timestamp);
- $today = date($pun_config['o_date_format'], $now+$diff);
- $yesterday = date($pun_config['o_date_format'], $now+$diff-86400);
- if ($date == $today)
- $date = $lang_common['Today'];
- else if ($date == $yesterday)
- $date = $lang_common['Yesterday'];
- if (!$date_only)
- return $date.' '.date($pun_config['o_time_format'], $timestamp);
- else
- return $date;
- }
- //
- // If we are running pre PHP 4.3.0, we add our own implementation of file_get_contents
- //
- if (!function_exists('file_get_contents'))
- {
- function file_get_contents($filename, $use_include_path = 0)
- {
- $data = '';
- if ($fh = fopen($filename, 'rb', $use_include_path))
- {
- $data = fread($fh, filesize($filename));
- fclose($fh);
- }
- return $data;
- }
- }
- //
- // Make sure that HTTP_REFERER matches $pun_config['o_base_url']/$script
- //
- function confirm_referrer($script)
- {
- global $pun_config, $lang_common;
- if (!preg_match('#^'.preg_quote(str_replace('www.', '', $pun_config['o_base_url']).'/'.$script, '#').'#i', str_replace('www.', '', (isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : ''))))
- message($lang_common['Bad referrer']);
- }
- //
- // Generate a random password of length $len
- //
- function random_pass($len)
- {
- $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
- $password = '';
- for ($i = 0; $i < $len; ++$i)
- $password .= substr($chars, (mt_rand() % strlen($chars)), 1);
- return $password;
- }
- //
- // Compute a hash of $str
- // Uses sha1() if available. If not, SHA1 through mhash() if available. If not, fall back on md5().
- //
- function pun_hash($str)
- {
- if (function_exists('sha1')) // Only in PHP 4.3.0+
- return sha1($str);
- else if (function_exists('mhash')) // Only if Mhash library is loaded
- return bin2hex(mhash(MHASH_SHA1, $str));
- else
- return md5($str);
- }
- //
- // Try to determine the correct remote IP-address
- //
- function get_remote_address()
- {
- return $_SERVER['REMOTE_ADDR'];
- }
- //
- // Equivalent to htmlspecialchars(), but allows &#[0-9]+ (for unicode)
- //
- function pun_htmlspecialchars($str)
- {
- $str = preg_replace('/&(?!#[0-9]+;)/s', '&', $str);
- $str = str_replace(array('<', '>', '"'), array('<', '>', '"'), $str);
- return $str;
- }
- //
- // Equivalent to strlen(), but counts &#[0-9]+ as one character (for unicode)
- //
- function pun_strlen($str)
- {
- return strlen(preg_replace('/&#([0-9]+);/', '!', $str));
- }
- //
- // Convert \r\n and \r to \n
- //
- function pun_linebreaks($str)
- {
- return str_replace("\r", "\n", str_replace("\r\n", "\n", $str));
- }
- //
- // A more aggressive version of trim()
- //
- function pun_trim($str)
- {
- global $lang_common;
- if (strpos($lang_common['lang_encoding'], '8859') !== false)
- {
- $fishy_chars = array(chr(0x81), chr(0x8D), chr(0x8F), chr(0x90), chr(0x9D), chr(0xA0));
- return trim(str_replace($fishy_chars, ' ', $str));
- }
- else
- return trim($str);
- }
- //
- // Display a message when board is in maintenance mode
- //
- function maintenance_message()
- {
- global $db, $pun_config, $lang_common, $pun_user;
- // Deal with newlines, tabs and multiple spaces
- $pattern = array("\t", ' ', ' ');
- $replace = array(' ', ' ', ' ');
- $message = str_replace($pattern, $replace, $pun_config['o_maintenance_message']);
- // Load the maintenance template
- $tpl_maint = trim(file_get_contents(PUN_ROOT.'include/template/maintenance.tpl'));
- // START SUBST - <pun_include "*">
- while (preg_match('#<pun_include "([^/\\\\]*?)\.(php[45]?|inc|html?|txt)">#', $tpl_maint, $cur_include))
- {
- if (!file_exists(PUN_ROOT.'include/user/'.$cur_include[1].'.'.$cur_include[2]))
- error('Unable to process user include '.htmlspecialchars($cur_include[0]).' from template maintenance.tpl. There is no such file in folder /include/user/');
- ob_start();
- include PUN_ROOT.'include/user/'.$cur_include[1].'.'.$cur_include[2];
- $tpl_temp = ob_get_contents();
- $tpl_maint = str_replace($cur_include[0], $tpl_temp, $tpl_maint);
- ob_end_clean();
- }
- // END SUBST - <pun_include "*">
- // START SUBST - <pun_content_direction>
- $tpl_maint = str_replace('<pun_content_direction>', $lang_common['lang_direction'], $tpl_maint);
- // END SUBST - <pun_content_direction>
- // START SUBST - <pun_char_encoding>
- $tpl_maint = str_replace('<pun_char_encoding>', $lang_common['lang_encoding'], $tpl_maint);
- // END SUBST - <pun_char_encoding>
- // START SUBST - <pun_head>
- ob_start();
- ?>
- <title><?php echo pun_htmlspecialchars($pun_config['o_board_title']).' / '.$lang_common['Maintenance'] ?></title>
- <link rel="stylesheet" type="text/css" href="style/<?php echo $pun_user['style'].'.css' ?>" />
- <?php
- $tpl_temp = trim(ob_get_contents());
- $tpl_maint = str_replace('<pun_head>', $tpl_temp, $tpl_maint);
- ob_end_clean();
- // END SUBST - <pun_head>
- // START SUBST - <pun_maint_heading>
- $tpl_maint = str_replace('<pun_maint_heading>', $lang_common['Maintenance'], $tpl_maint);
- // END SUBST - <pun_maint_heading>
- // START SUBST - <pun_maint_message>
- $tpl_maint = str_replace('<pun_maint_message>', $message, $tpl_maint);
- // END SUBST - <pun_maint_message>
- // End the transaction
- $db->end_transaction();
- // Close the db connection (and free up any result data)
- $db->close();
- exit($tpl_maint);
- }
- //
- // Display $message and redirect user to $destination_url
- //
- function redirect($destination_url, $message)
- {
- global $db, $pun_config, $lang_common, $pun_user;
- // Prefix with o_base_url (unless there's already a valid URI)
- if (strpos($destination_url, 'http://') !== 0 && strpos($destination_url, 'https://') !== 0 && strpos($destination_url, '/') !== 0)
- $destination_url = $pun_config['o_base_url'].'/'.$destination_url;
- // Do a little spring cleaning
- $destination_url = preg_replace('/([\r\n])|(%0[ad])|(;[\s]*data[\s]*:)/i', '', $destination_url);
- // If the delay is 0 seconds, we might as well skip the redirect all together
- if ($pun_config['o_redirect_delay'] == '0')
- header('Location: '.str_replace('&', '&', $destination_url));
- // Load the redirect template
- $tpl_redir = trim(file_get_contents(PUN_ROOT.'include/template/redirect.tpl'));
- // START SUBST - <pun_include "*">
- while (preg_match('#<pun_include "([^/\\\\]*?)\.(php[45]?|inc|html?|txt)">#', $tpl_redir, $cur_include))
- {
- if (!file_exists(PUN_ROOT.'include/user/'.$cur_include[1].'.'.$cur_include[2]))
- error('Unable to process user include '.htmlspecialchars($cur_include[0]).' from template redirect.tpl. There is no such file in folder /include/user/');
- ob_start();
- include PUN_ROOT.'include/user/'.$cur_include[1].'.'.$cur_include[2];
- $tpl_temp = ob_get_contents();
- $tpl_redir = str_replace($cur_include[0], $tpl_temp, $tpl_redir);
- ob_end_clean();
- }
- // END SUBST - <pun_include "*">
- // START SUBST - <pun_content_direction>
- $tpl_redir = str_replace('<pun_content_direction>', $lang_common['lang_direction'], $tpl_redir);
- // END SUBST - <pun_content_direction>
- // START SUBST - <pun_char_encoding>
- $tpl_redir = str_replace('<pun_char_encoding>', $lang_common['lang_encoding'], $tpl_redir);
- // END SUBST - <pun_char_encoding>
- // START SUBST - <pun_head>
- ob_start();
- ?>
- <meta http-equiv="refresh" content="<?php echo $pun_config['o_redirect_delay'] ?>;URL=<?php echo str_replace(array('<', '>', '"'), array('<', '>', '"'), $destination_url) ?>" />
- <title><?php echo pun_htmlspecialchars($pun_config['o_board_title']).' / '.$lang_common['Redirecting'] ?></title>
- <link rel="stylesheet" type="text/css" href="style/<?php echo $pun_user['style'].'.css' ?>" />
- <?php
- $tpl_temp = trim(ob_get_contents());
- $tpl_redir = str_replace('<pun_head>', $tpl_temp, $tpl_redir);
- ob_end_clean();
- // END SUBST - <pun_head>
- // START SUBST - <pun_redir_heading>
- $tpl_redir = str_replace('<pun_redir_heading>', $lang_common['Redirecting'], $tpl_redir);
- // END SUBST - <pun_redir_heading>
- // START SUBST - <pun_redir_text>
- $tpl_temp = $message.'<br /><br />'.'<a href="'.$destination_url.'">'.$lang_common['Click redirect'].'</a>';
- $tpl_redir = str_replace('<pun_redir_text>', $tpl_temp, $tpl_redir);
- // END SUBST - <pun_redir_text>
- // START SUBST - <pun_footer>
- ob_start();
- // End the transaction
- $db->end_transaction();
- // Display executed queries (if enabled)
- if (defined('PUN_SHOW_QUERIES'))
- display_saved_queries();
- $tpl_temp = trim(ob_get_contents());
- $tpl_redir = str_replace('<pun_footer>', $tpl_temp, $tpl_redir);
- ob_end_clean();
- // END SUBST - <pun_footer>
- // Close the db connection (and free up any result data)
- $db->close();
- exit($tpl_redir);
- }
- //
- // Display a simple error message
- //
- function error($message, $file, $line, $db_error = false)
- {
- global $pun_config;
- // Set a default title if the script failed before $pun_config could be populated
- if (empty($pun_config))
- $pun_config['o_board_title'] = 'PunBB';
- // Empty output buffer and stop buffering
- @ob_end_clean();
- // "Restart" output buffering if we are using ob_gzhandler (since the gzip header is already sent)
- if (!empty($pun_config['o_gzip']) && extension_loaded('zlib') && (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== false || strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'deflate') !== false))
- ob_start('ob_gzhandler');
- ?>
- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
- <title><?php echo pun_htmlspecialchars($pun_config['o_board_title']) ?> / Error</title>
- <style type="text/css">
- <!--
- BODY {MARGIN: 10% 20% auto 20%; font: 10px Verdana, Arial, Helvetica, sans-serif}
- #errorbox {BORDER: 1px solid #B84623}
- H2 {MARGIN: 0; COLOR: #FFFFFF; BACKGROUND-COLOR: #B84623; FONT-SIZE: 1.1em; PADDING: 5px 4px}
- #errorbox DIV {PADDING: 6px 5px; BACKGROUND-COLOR: #F1F1F1}
- -->
- </style>
- </head>
- <body>
- <div id="errorbox">
- <h2>An error was encountered</h2>
- <div>
- <?php
- if (defined('PUN_DEBUG'))
- {
- echo "\t\t".'<strong>File:</strong> '.$file.'<br />'."\n\t\t".'<strong>Line:</strong> '.$line.'<br /><br />'."\n\t\t".'<strong>PunBB reported</strong>: '.$message."\n";
- if ($db_error)
- {
- echo "\t\t".'<br /><br /><strong>Database reported:</strong> '.pun_htmlspecialchars($db_error['error_msg']).(($db_error['error_no']) ? ' (Errno: '.$db_error['error_no'].')' : '')."\n";
- if ($db_error['error_sql'] != '')
- echo "\t\t".'<br /><br /><strong>Failed query:</strong> '.pun_htmlspecialchars($db_error['error_sql'])."\n";
- }
- }
- else
- echo "\t\t".'Error: <strong>'.$message.'.</strong>'."\n";
- ?>
- </div>
- </div>
- </body>
- </html>
- <?php
- // If a database connection was established (before this error) we close it
- if ($db_error)
- $GLOBALS['db']->close();
- exit;
- }
- // DEBUG FUNCTIONS BELOW
- //
- // Display executed queries (if enabled)
- //
- function display_saved_queries()
- {
- global $db, $lang_common;
- // Get the queries so that we can print them out
- $saved_queries = $db->get_saved_queries();
- ?>
- <div id="debug" class="blocktable">
- <h2><span><?php echo $lang_common['Debug table'] ?></span></h2>
- <div class="box">
- <div class="inbox">
- <table cellspacing="0">
- <thead>
- <tr>
- <th class="tcl" scope="col">Time (s)</th>
- <th class="tcr" scope="col">Query</th>
- </tr>
- </thead>
- <tbody>
- <?php
- $query_time_total = 0.0;
- while (list(, $cur_query) = @each($saved_queries))
- {
- $query_time_total += $cur_query[1];
- ?>
- <tr>
- <td class="tcl"><?php echo ($cur_query[1] != 0) ? $cur_query[1] : ' ' ?></td>
- <td class="tcr"><?php echo pun_htmlspecialchars($cur_query[0]) ?></td>
- </tr>
- <?php
- }
- ?>
- <tr>
- <td class="tcl" colspan="2">Total query time: <?php echo $query_time_total ?> s</td>
- </tr>
- </tbody>
- </table>
- </div>
- </div>
- </div>
- <?php
- }
- //
- // Unset any variables instantiated as a result of register_globals being enabled
- //
- function unregister_globals()
- {
- $register_globals = @ini_get('register_globals');
- if ($register_globals === "" || $register_globals === "0" || strtolower($register_globals) === "off")
- return;
- // Prevent script.php?GLOBALS[foo]=bar
- if (isset($_REQUEST['GLOBALS']) || isset($_FILES['GLOBALS']))
- exit('I\'ll have a steak sandwich and... a steak sandwich.');
-
- // Variables that shouldn't be unset
- $no_unset = array('GLOBALS', '_GET', '_POST', '_COOKIE', '_REQUEST', '_SERVER', '_ENV', '_FILES');
- // Remove elements in $GLOBALS that are present in any of the superglobals
- $input = array_merge($_GET, $_POST, $_COOKIE, $_SERVER, $_ENV, $_FILES, isset($_SESSION) && is_array($_SESSION) ? $_SESSION : array());
- foreach ($input as $k => $v)
- {
- if (!in_array($k, $no_unset) && isset($GLOBALS[$k]))
- {
- unset($GLOBALS[$k]);
- unset($GLOBALS[$k]); // Double unset to circumvent the zend_hash_del_key_or_index hole in PHP <4.4.3 and <5.1.4
- }
- }
- }
- //
- // Dump contents of variable(s)
- //
- function dump()
- {
- echo '<pre>';
- $num_args = func_num_args();
- for ($i = 0; $i < $num_args; ++$i)
- {
- print_r(func_get_arg($i));
- echo "\n\n";
- }
- echo '</pre>';
- exit;
- }