2010-12-02 04:57:15 -05:00
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<?php
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2010-12-10 05:03:20 -05:00
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2010-12-02 04:55:56 -05:00
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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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2010-12-17 09:18:03 -05:00
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$query = prepare("SELECT `id`,`type` FROM `mods` WHERE `username` = :username AND `password` = :password LIMIT 1");
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$query->bindValue(':username', $username);
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$query->bindValue(':password', $password);
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$query->execute();
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2010-12-02 04:55:56 -05:00
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2010-12-17 09:18:03 -05:00
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if($user = $query->fetch()) {
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2010-12-02 04:55:56 -05:00
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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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2010-12-02 02:26:09 -05:00
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// Generates a <ul> element with a list of linked
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2010-12-16 10:20:16 -05:00
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// boards and their subtitles. (without the <ul> opening and ending tags)
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2010-12-02 02:26:09 -05:00
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function ulBoards() {
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2010-12-02 04:55:56 -05:00
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global $mod;
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2010-12-16 10:20:16 -05:00
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$body = '';
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2010-12-02 02:26:09 -05:00
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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, $b['uri']) .
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2010-12-02 04:55:56 -05:00
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'</a> - ' .
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$b['title'] .
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(isset($b['subtitle']) ? '<span class="unimportant"> — ' . $b['subtitle'] . '</span>' : '') .
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2010-12-02 02:26:09 -05:00
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'</li>';
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}
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2010-12-16 10:20:16 -05:00
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if($mod['type'] >= MOD_NEWBOARD) {
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2010-12-02 04:55:56 -05:00
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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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2010-12-16 10:20:16 -05:00
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return $body;
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2010-12-02 02:26:09 -05:00
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}
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2010-12-02 04:55:56 -05:00
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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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2011-01-01 05:42:22 -05:00
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// Remove file from post
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function deleteFile($id) {
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global $board;
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2011-01-01 05:44:11 -05:00
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$query = prepare(sprintf("SELECT `thread`,`thumb`,`file` FROM `posts_%s` WHERE `id` = :id AND `thread` IS NOT NULL LIMIT 1", $board['uri']));
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2011-01-01 05:42:22 -05:00
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$query->bindValue(':id', $id, PDO::PARAM_INT);
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$query->execute() or error(db_error($query));
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if($query->rowCount() < 1) {
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error(ERROR_INVALIDPOST);
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}
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2011-01-01 05:44:11 -05:00
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$post = $query->fetch();
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// Delete thumbnail
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@unlink($board['dir'] . DIR_THUMB . $post['thumb']);
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// Delete file
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@unlink($board['dir'] . DIR_IMG . $post['file']);
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2011-01-01 06:12:31 -05:00
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// Update database
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$query = prepare(sprintf("UPDATE `posts_%s` SET `thumb` = NULL, `thumbwidth` = NULL, `thumbheight` = NULL, `filewidth` = NULL, `fileheight` = NULL, `filesize` = NULL, `filename` = NULL, `filehash` = NULL, `file` = 'deleted' WHERE `id` = :id OR `thread` = :id", $board['uri']));
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$query->bindValue(':id', $id, PDO::PARAM_INT);
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$query->execute() or error(db_error($query));
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2011-01-01 05:44:11 -05:00
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2011-01-01 06:12:31 -05:00
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buildThread($post['thread']);
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2011-01-01 05:42:22 -05:00
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}
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2010-12-16 00:36:33 -05:00
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// Delete a post (reply or thread)
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function deletePost($id) {
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2010-12-17 09:18:03 -05:00
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global $board;
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2010-12-16 00:36:33 -05:00
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// Select post and replies (if thread) in one query
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2010-12-17 09:18:03 -05:00
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$query = prepare(sprintf("SELECT `id`,`thread`,`thumb`,`file` FROM `posts_%s` WHERE `id` = :id OR `thread` = :id", $board['uri']));
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$query->bindValue(':id', $id, PDO::PARAM_INT);
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$query->execute() or error(db_error($query));
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if($query->rowCount() < 1) {
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2010-12-16 01:05:29 -05:00
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error(ERROR_INVALIDPOST);
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}
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2010-12-16 00:36:33 -05:00
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// Delete posts and maybe replies
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2010-12-17 09:18:03 -05:00
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while($post = $query->fetch()) {
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2010-12-16 00:36:33 -05:00
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if(!$post['thread']) {
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// Delete thread HTML page
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@unlink($board['dir'] . DIR_RES . sprintf(FILE_PAGE, $post['id']));
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2011-01-01 05:42:22 -05:00
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} elseif($query->rowCount() == 1) {
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// Rebuild thread
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$rebuild = $post['thread'];
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2010-12-16 00:36:33 -05:00
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}
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if($post['thumb']) {
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// Delete thumbnail
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@unlink($board['dir'] . DIR_THUMB . $post['thumb']);
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}
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if($post['file']) {
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// Delete file
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@unlink($board['dir'] . DIR_IMG . $post['file']);
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}
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}
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2010-12-16 04:29:35 -05:00
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2010-12-17 09:18:03 -05:00
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$query = prepare(sprintf("DELETE FROM `posts_%s` WHERE `id` = :id OR `thread` = :id", $board['uri']));
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$query->bindValue(':id', $id, PDO::PARAM_INT);
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$query->execute() or error(db_error($query));
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2011-01-01 05:42:22 -05:00
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if(isset($rebuild)) {
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buildThread($rebuild);
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}
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2010-12-16 00:36:33 -05:00
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}
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2010-12-02 02:26:09 -05:00
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?>
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