/*************************
  Coppermine Photo Gallery
  ************************
  Copyright (c) 2003-2005 Coppermine Dev Team
  v1.1 originally written by Gregory DEMAR

  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.
  ********************************************
  Coppermine version: 1.4.2
  $Source: /cvsroot/coppermine/devel/bridge/phpbb2018.inc.php,v $
  $Revision: 1.1 $
  $Author: nibbler999 $
  $Date: 2005/11/20 20:44:14 $
**********************************************/

if (!defined('IN_COPPERMINE')) die('Not in Coppermine...');

// Switch that allows overriding the bridge manager with hard-coded values
define('USE_BRIDGEMGR', 1);

require 'bridge/udb_base.inc.php';

class cpg_udb extends core_udb {

	function cpg_udb()
	{
		global $BRIDGE;
		
		if (!USE_BRIDGEMGR) {
			$this->boardurl = 'http://www.yousite.com/phpBB2';
			require_once('../phpBB2/config.php');

		} else {
			$this->boardurl = $BRIDGE['full_forum_url'];
			require_once($BRIDGE['relative_path_to_config_file'] . 'config.php');
			$this->use_post_based_groups = $BRIDGE['use_post_based_groups'];
		}
		
		$this->multigroups = 1;
		
		// Database connection settings
		$this->db = array(
			'name' => $dbname,
			'host' => $dbhost ? $dbhost : 'localhost',
			'user' => $dbuser,
			'password' => $dbpasswd,
			'prefix' =>$table_prefix
		);
		
		// Board table names
		$this->table = array(
			'users' => 'users',
			'groups' => 'groups',
			'sessions' => 'sessions',
			'usergroups' => 'user_group',
			'sessionskeys' => 'sessions_keys'
		);

		// Derived full table names
		$this->usertable = '`' . $this->db['name'] . '`.' . $this->db['prefix'] . $this->table['users'];
		$this->groupstable =  '`' . $this->db['name'] . '`.' . $this->db['prefix'] . $this->table['groups'];
		$this->sessionstable =  '`' . $this->db['name'] . '`.' . $this->db['prefix'] . $this->table['sessions'];
		$this->usergroupstable = '`' . $this->db['name'] . '`.' . $this->db['prefix'] . $this->table['usergroups'];
		$this->sessionskeystable = '`' . $this->db['name'] . '`.' . $this->db['prefix'] . $this->table['sessionskeys'];
		
		// Table field names
		$this->field = array(
			'username' => 'username', // name of 'username' field in users table
			'user_id' => 'user_id', // name of 'id' field in users table
			'password' => 'user_password', // name of 'password' field in users table
			'email' => 'user_email', // name of 'email' field in users table
			'regdate' => 'user_regdate', // name of 'registered' field in users table
			'active' => 'user_active', // is user account active?
			'lastvisit' => 'user_lastvisit', // name of 'location' field in users table
			'location' => 'user_from', // name of 'location' field in users table
			'website' => 'user_website', // name of 'website' field in users table
			'usertbl_group_id' => 'group_id', // name of 'group id' field in users table
			'grouptbl_group_id' => 'group_id', // name of 'group id' field in groups table
			'grouptbl_group_name' => 'group_name' // name of 'group name' field in groups table
		);
		
		// Pages to redirect to
		$this->page = array(
			'register' => '/ucp.php?mode=register',
			'editusers' => '/memberlist.php',
			'edituserprofile' => "/memberlist.php?mode=viewprofile&u=",
		);
		
		// Group ids - admin and guest only.
		$this->admingroups = array(2);
		$this->guestgroup = $this->use_post_based_groups ? 3 : 3;
		
		// Use a special function to collect groups for cpg groups table
		$this->group_overrride = 1;
		
		// Cookie settings - used in following functions only
		$this->cookie_name = $BRIDGE['cookie_prefix'];
		
		// Connect to db
		$this->connect();
	}

	function collect_groups()
	{
		$sql ="SELECT * FROM {$this->groupstable} WHERE group_single_user = 0";
	
		$result = cpg_db_query($sql, $this->link_id);
		
		$udb_groups = array(102 =>'Administrators', 2=> 'Registered', 3=>'Guests', 4=> 'Banned');
			
		while ($row = mysql_fetch_assoc($result))
		{
			$udb_groups[$row[$this->field['grouptbl_group_id']]+100] = utf_ucfirst(utf_strtolower($row[$this->field['grouptbl_group_name']]));
		}

		return $udb_groups;
		
	}
	// definition of how to extract id, name, group from a session cookie
	function session_extraction()
	{
		if (isset($_COOKIE[$this->cookie_name . '_sid'])) {
			$this->sid = addslashes($_COOKIE[$this->cookie_name . '_sid']);

			$sql = "SELECT u.{$this->field['user_id']} AS user_id, u.{$this->field['password']} AS password FROM {$this->usertable} AS u, {$this->sessionstable} AS s WHERE u.{$this->field['user_id']}=s.session_user_id AND s.session_id = '{$this->sid}' AND u.user_id > 0";
			
			$result = cpg_db_query($sql, $this->link_id);

			if (mysql_num_rows($result)){
				$row = mysql_fetch_array($result);
				return $row;
			} else {
			    return false;
			}
		}
	}
	
	// Get groups of which user is member
	function get_groups($row)
	{
		if ($this->use_post_based_groups){

			$sql = "SELECT ug.{$this->field['usertbl_group_id']}+100 AS group_id FROM {$this->usertable} AS u, {$this->usergroupstable} AS ug, {$this->groupstable} as g WHERE u.{$this->field['user_id']}=ug.{$this->field['user_id']} AND u.{$this->field['user_id']}='{$row['id']}' AND g.{$this->field['grouptbl_group_id']} = ug.{$this->field['grouptbl_group_id']}";

			$result = cpg_db_query($sql, $this->link_id);

			while ($row = mysql_fetch_array($result)) {
				$data[] = $row['group_id'];
			}
		} else {
			$data[0] = in_array($row[$this->field['usertbl_group_id']] , $this->admingroups) ? 1 : 2;
		}
		
		return $data;
	}
	
	// definition of how to extract an id and password hash from a cookie
	function cookie_extraction()
	{
	    $id = 0;
		$pass = '';

        if (isset($_COOKIE[$this->cookie_name.'_data'])){
			$sessiondata = unserialize($_COOKIE[$this->cookie_name.'_data']);
			$cookieid = $sessiondata['userid'] > 1 ? intval($sessiondata['userid']) : 0;
			$cookiepass = (isset($sessiondata['autologinid'])) ? addslashes($sessiondata['autologinid']) : '';
			$sql = "SELECT u.user_id, u.user_password FROM {$this->sessionskeystable} AS s 
							INNER JOIN {$this->usertable} AS u ON s.user_id = u.user_id WHERE u.user_id = '$cookieid' AND u.user_active = 1 AND s.key_id = MD5('$cookiepass')";
			$result = cpg_db_query($sql, $UDB_DB_LINK_ID);
			list($id, $pass) = mysql_fetch_row($result);
			$this->sid = 0;
		}
		
		return ($id) ? array($id, $pass) : false;
	}
	
	// definition of actions required to convert a password from user database form to cookie form
	function udb_hash_db($password)
	{
		return $password; // unused
	}

	function login_page()
	{
		global $CONFIG;
		
		$cpg = parse_url($CONFIG['site_url']);
		$bb = parse_url($this->boardurl);
		$levels = count(explode('/', $bb['path'])) - 1;
		$redirect = str_repeat('..', $levels) . rtrim($cpg['path'], '/') . '/';

		$this->redirect("/login.php?redirect=$redirect");
	}

	function logout_page()
	{
		global $CONFIG;
		
		$cpg = parse_url($CONFIG['site_url']);
		$bb = parse_url($this->boardurl);
		$levels = count(explode('/', $bb['path'])) - 1;
		$redirect = str_repeat('../', $levels) . trim($cpg['path'], '/') . '/';
		
		$this->redirect("/login.php?logout=true&sid={$this->sid}&redirect=$redirect");
	}

	function view_users() {}
	function view_profile() {}
	
	
	function get_users($options = array())
    {
    	global $CONFIG;
		

		// Copy UDB fields and config variables (just to make it easier to read)
    	$f =& $this->field;
		$C =& $CONFIG;
		
		// Sort codes
        $sort_codes = array('name_a' => 'user_name ASC',
                            'name_d' => 'user_name DESC',
                            'group_a' => 'group_name ASC',
                            'group_d' => 'group_name DESC',
                            'reg_a' => 'user_regdate ASC',
                            'reg_d' => 'user_regdate DESC',
                            'pic_a' => 'pic_count ASC',
                            'pic_d' => 'pic_count DESC',
                            'disku_a' => 'disk_usage ASC',
                            'disku_d' => 'disk_usage DESC',
                            'lv_a' => 'user_lastvisit ASC',
                            'lv_d' => 'user_lastvisit DESC',
                           );
        
		if (in_array($options['sort'], array('group_a', 'group_d', 'pic_a', 'pic_d', 'disku_a', 'disku_d'))){
			
			$sort = '';
			list($this->sortfield, $this->sortdir) = explode(' ', $sort_codes[$options['sort']]);
			$this->adv_sort = true;
			
		} else {
			
			$sort = "ORDER BY " . $sort_codes[$options['sort']];
			$this->adv_sort = false;
		}

		// Build WHERE clause, if this is a username search
        if ($options['search']) {
            $options['search'] = 'AND u.'.$f['username'].' LIKE "'.$options['search'].'" ';
        }

        $sql = "SELECT group_id, group_name, group_quota FROM {$C['TABLE_USERGROUPS']}";

		$result = cpg_db_query($sql);
		
		$groups = array();
	
		while ($row = mysql_fetch_assoc($result)) {
			$groups[$row['group_id']] = $row;
		}
		
		$sql ="SELECT group_id FROM {$this->groupstable} WHERE group_single_user = 0";
	
		$result = cpg_db_query($sql, $this->link_id);
		$udb_groups = array();
		
		while ($row = mysql_fetch_assoc($result)) {
			$udb_groups[] = $row['group_id'];
		}


        $sql = "SELECT u.{$f['user_id']} as user_id, MIN(ug.{$f['grouptbl_group_id']}) AS user_group, {$f['username']} as user_name, {$f['email']} as user_email, {$f['regdate']} as user_regdate, {$f['lastvisit']} as user_lastvisit, '' as user_active, 0 as pic_count, 0 as disk_usage ".
               "FROM {$this->usertable} AS u ".
			   "INNER JOIN {$this->usergroupstable} AS ug ON u.{$this->field['user_id']}=ug.{$this->field['user_id']}    ".   
               "WHERE u.{$f['user_id']} > 0 " . $options['search'].
               "GROUP BY ug.{$f['user_id']} " . $sort .
               " LIMIT {$options['lower_limit']}, {$options['users_per_page']};";

		$result = cpg_db_query($sql, $this->link_id);
		
		// If no records, return empty value
		if (!mysql_num_rows($result)) {
			return array();
		}

		// Extract user list to an array
		while ($user = mysql_fetch_assoc($result)) {
			
			$gid = 2;

			if ($this->use_post_based_groups){
				if (in_array($user['user_group'], $udb_groups)){
					$gid = $user['user_group'] + 100;
		
				} elseif (in_array($user['user_group'], $this->admingroups)){
					$gid = 102;
				}
			} else {
				if (in_array($user['user_group'], $this->admingroups)){
					$gid = 1;
				}
			}

			$userlist[$user['user_id']] = array_merge($user, $groups[$gid]);
			$users[] = $user['user_id'];
		}
		
		$user_list_string = implode(', ', $users);
		
		$sql = "SELECT owner_id, COUNT(pid) as pic_count, ROUND(SUM(total_filesize)/1024) as disk_usage FROM {$C['TABLE_PICTURES']} WHERE owner_id IN ($user_list_string) GROUP BY owner_id";

		$result = cpg_db_query($sql);


		while ($owner = mysql_fetch_assoc($result)) {
			$userlist[$owner['owner_id']] = array_merge($userlist[$owner['owner_id']], $owner);
		}

		if ($this->adv_sort) usort($userlist, array('cpg_udb', 'adv_sort'));

        return $userlist;
    }
	
	function adv_sort($a, $b)
	{
		if ($this->sortdir == 'ASC'){
			return strcmp($a[$this->sortfield], $b[$this->sortfield]);
		 } else {
			return strcmp($b[$this->sortfield], $a[$this->sortfield]);
		}
	}
}

// and go !
$cpg_udb = new cpg_udb;
?>