leftypol/inc/mod.php

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<?php
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// Creates a small random string for validating moderators' cookies
function mkhash($length=12) {
// The method here isn't really important,
// but I think this generates a relatively
// unique string that looks cool.
// If you choose to change this, make sure it cannot include a ':' character.
return substr(base64_encode(sha1(rand() . time(), true)), 0, $length);
}
function login($username, $password, $makehash=true) {
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global $mod;
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// SHA1 password
if($makehash) {
$password = sha1($password);
}
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$query = prepare("SELECT `id`,`type` FROM `mods` WHERE `username` = :username AND `password` = :password LIMIT 1");
$query->bindValue(':username', $username);
$query->bindValue(':password', $password);
$query->execute() or error(db_error($query));
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if($user = $query->fetch()) {
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return $mod = Array(
'id' => $user['id'],
'type' => $user['type'],
'username' => $username,
'password' => $password,
'hash' => isset($_SESSION['mod']['hash']) ? $_SESSION['mod']['hash'] : mkhash()
);
} else return false;
}
function setCookies() {
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global $mod, $config;
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if(!$mod) error('setCookies() was called for a non-moderator!');
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// $config['cookies']['mod'] contains username:hash
setcookie($config['cookies']['mod'], $mod['username'] . ':' . $mod['hash'], time()+$config['cookies']['expire'], $config['cookies']['jail']?$config['root']:'/', null, false, true);
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// Put $mod in the session
$_SESSION['mod'] = $mod;
// Lock sessions to IP addresses
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if($config['mod']['lock_ip'])
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$_SESSION['mod']['ip'] = $_SERVER['REMOTE_ADDR'];
}
function destroyCookies() {
// Delete the cookies
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setcookie($config['cookies']['mod'], 'deleted', time()-$config['cookies']['expire'], $config['cookies']['jail']?$config['root']:'/', null, false, true);
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// Unset the session
unset($_SESSION['mod']);
}
function modLog($action) {
global $mod;
$query = prepare("INSERT INTO `modlogs` VALUES (:id, :ip, :time, :text)");
$query->bindValue(':id', $mod['id'], PDO::PARAM_INT);
$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
$query->bindValue(':time', time(), PDO::PARAM_INT);
$query->bindValue(':text', $action);
$query->execute() or error(db_error($query));
}
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if(isset($_COOKIE['mod']) && isset($_SESSION['mod']) && is_array($_SESSION['mod'])) {
// Should be username:session hash
$cookie = explode(':', $_COOKIE['mod']);
if(count($cookie) != 2) {
destroyCookies();
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error($config['error']['malformed']);
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}
// Validate session
if( $cookie[0] != $_SESSION['mod']['username'] ||
$cookie[1] != $_SESSION['mod']['hash']) {
// Malformed cookies
destroyCookies();
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error($config['error']['malformed']);
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}
// Open connection
sql_open();
// Check username/password
if(!login($_SESSION['mod']['username'], $_SESSION['mod']['password'], false)) {
destroyCookies();
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error($config['error']['invalidafter']);
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}
}
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// Generates a <ul> element with a list of linked
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// boards and their subtitles. (without the <ul> opening and ending tags)
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function ulBoards() {
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global $mod, $config;
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$body = '';
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// List of boards
$boards = listBoards();
foreach($boards as &$b) {
$body .= '<li>' .
'<a href="?/' .
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sprintf($config['board_path'], $b['uri']) . $config['file_index'] .
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'">' .
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sprintf($config['board_abbreviation'], $b['uri']) .
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'</a> - ' .
$b['title'] .
(isset($b['subtitle']) ? '<span class="unimportant"> — ' . $b['subtitle'] . '</span>' : '') .
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($mod['type'] >= $config['mod']['manageboards'] ?
' <a href="?/board/' . $b['uri'] . '" class="unimportant">[manage]</a>' : '') .
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'</li>';
}
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if($mod['type'] >= $config['mod']['newboard']) {
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$body .= '<li style="margin-top:15px;"><a href="?/new"><strong>Create new board</strong></a></li>';
}
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return $body;
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}
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function form_newBan($ip=null, $reason='', $continue=false, $delete=false, $board=false) {
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return '<fieldset><legend>New ban</legend>' .
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'<form action="?/ban" method="post">' .
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($continue ? '<input type="hidden" name="continue" value="' . htmlentities($continue) . '" />' : '') .
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($delete ? '<input type="hidden" name="delete" value="' . htmlentities($delete) . '" />' : '') .
($board ? '<input type="hidden" name="board" value="' . htmlentities($board) . '" />' : '') .
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'<table>' .
'<tr>' .
'<th><label for="ip">IP</label></th>' .
'<td><input type="text" name="ip" id="ip" size="15" maxlength="15" ' .
(isset($ip) ?
'value="' . htmlentities($ip) . '" ' : ''
) .
'/></td>' .
'</tr>' .
'<tr>' .
'<th><label for="reason">Reason</label></th>' .
'<td><textarea name="reason" id="reason" rows="5" cols="30">' .
htmlentities($reason) .
'</textarea></td>' .
'</tr>' .
'<tr>' .
'<th><label for="length">Length</label></th>' .
'<td><input type="text" name="length" id="length" size="20" maxlength="40" />' .
' <span class="unimportant">(eg. "2d1h30m" or "2 days")</span></td>' .
'</tr>' .
'<tr>' .
'<td></td>' .
'<td><input name="new_ban" type="submit" value="New Ban" /></td>' .
'</tr>' .
'</table>' .
'</form>' .
'</fieldset>';
}
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function form_newBoard() {
return '<fieldset><legend>New board</legend>' .
'<form action="?/new" method="post">' .
'<table>' .
'<tr>' .
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'<th><label for="board">URI</label></th>' .
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'<td><input type="text" name="uri" id="board" size="3" maxlength="8" />' .
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' <span class="unimportant">(eg. "b"; "mu")</span></td>' .
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'</tr>' .
'<tr>' .
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'<th><label for="title">Title</label></th>' .
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'<td><input type="text" name="title" id="title" size="15" maxlength="20" />' .
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' <span class="unimportant">(eg. "Random")</span></td>' .
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'</tr>' .
'<tr>' .
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'<th><label for="subtitle">Subtitle</label></th>' .
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'<td><input type="text" name="subtitle" id="subtitle" size="20" maxlength="40" />' .
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' <span class="unimportant">(optional)</span></td>' .
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'</tr>' .
'<tr>' .
'<td></td>' .
'<td><input name="new_board" type="submit" value="New Board" /></td>' .
'</tr>' .
'</table>' .
'</form>' .
'</fieldset>';
}
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?>