145 lines
4.1 KiB
PHP
145 lines
4.1 KiB
PHP
<?php
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// 'false' means that the user is not logged in as a moderator
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$mod = false;
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// Creates a small random string for validating moderators' cookies
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function mkhash($length=12) {
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// The method here isn't really important,
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// but I think this generates a relatively
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// unique string that looks cool.
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// If you choose to change this, make sure it cannot include a ':' character.
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return substr(base64_encode(sha1(rand() . time(), true)), 0, $length);
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}
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function login($username, $password, $makehash=true) {
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global $sql, $mod;
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// SHA1 password
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if($makehash) {
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$password = sha1($password);
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}
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$res = mysql_query(sprintf(
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"SELECT `id`,`type` FROM `mods` WHERE `username` = '%s' AND `password` = '%s' LIMIT 1",
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mysql_real_escape_string($username),
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$password
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), $sql) or error(mysql_error($sql));
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if($user = mysql_fetch_array($res)) {
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return $mod = Array(
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'id' => $user['id'],
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'type' => $user['type'],
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'username' => $username,
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'password' => $password,
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'hash' => isset($_SESSION['mod']['hash']) ? $_SESSION['mod']['hash'] : mkhash()
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);
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} else return false;
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}
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function setCookies() {
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global $mod;
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if(!$mod) error('setCookies() was called for a non-moderator!');
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// MOD_COOKIE contains username:hash
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setcookie(MOD_COOKIE, $mod['username'] . ':' . $mod['hash'], time()+COOKIE_EXPIRE, JAIL_COOKIES?ROOT:'/', null, false, true);
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// Put $mod in the session
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$_SESSION['mod'] = $mod;
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// Lock sessions to IP addresses
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if(MOD_LOCK_IP)
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$_SESSION['mod']['ip'] = $_SERVER['REMOTE_ADDR'];
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}
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function destroyCookies() {
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// Delete the cookies
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setcookie(MOD_COOKIE, 'deleted', time()-COOKIE_EXPIRE, JAIL_COOKIES?ROOT:'/', null, false, true);
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// Unset the session
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unset($_SESSION['mod']);
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}
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if(isset($_COOKIE['mod']) && isset($_SESSION['mod']) && is_array($_SESSION['mod'])) {
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// Should be username:session hash
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$cookie = explode(':', $_COOKIE['mod']);
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if(count($cookie) != 2) {
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destroyCookies();
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error(ERROR_MALFORMED);
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}
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// Validate session
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if( $cookie[0] != $_SESSION['mod']['username'] ||
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$cookie[1] != $_SESSION['mod']['hash']) {
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// Malformed cookies
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destroyCookies();
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error(ERROR_MALFORMED);
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}
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// Open connection
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sql_open();
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// Check username/password
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if(!login($_SESSION['mod']['username'], $_SESSION['mod']['password'], false)) {
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destroyCookies();
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error(ERROR_INVALIDAFTER);
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}
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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.
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function ulBoards() {
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global $mod;
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$body = '<ul>';
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// List of boards
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$boards = listBoards();
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foreach($boards as &$b) {
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$body .= '<li>' .
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'<a href="?/' .
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sprintf(BOARD_PATH, $b['uri']) . FILE_INDEX .
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'">' .
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sprintf(BOARD_ABBREVIATION, $b['uri']) .
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'</a> - ' .
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$b['title'] .
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(isset($b['subtitle']) ? '<span class="unimportant"> — ' . $b['subtitle'] . '</span>' : '') .
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'</li>';
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}
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if($mod['type'] == MOD_ADMIN) {
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$body .= '<li style="margin-top:15px;"><a href="?/new"><strong>Create new board</strong></a></li>';
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}
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return $body . '</ul>';
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}
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function form_newBoard() {
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return '<fieldset><legend>New board</legend>' .
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'<form action="?/new" method="post">' .
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'<table>' .
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'<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>' .
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'</tr>' .
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'<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>' .
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'</tr>' .
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'<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>' .
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'</tr>' .
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'<tr>' .
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'<td></td>' .
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'<td><input name="new_board" type="submit" value="New Board" /></td>' .
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'</tr>' .
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'</table>' .
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'</form>' .
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'</fieldset>';
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}
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?>
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