mirror of
https://github.com/Piwigo/Piwigo.git
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42abf4c576
limitations. Each image can be associated to as many tag as needed. Tags can contain non ASCII characters. Oriented navigation with tags by association. git-svn-id: http://piwigo.org/svn/trunk@1119 68402e56-0260-453c-a942-63ccdbb3a9ee
636 lines
15 KiB
PHP
636 lines
15 KiB
PHP
<?php
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// +-----------------------------------------------------------------------+
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// | PhpWebGallery - a PHP based picture gallery |
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// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
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// | Copyright (C) 2003-2006 PhpWebGallery Team - http://phpwebgallery.net |
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// +-----------------------------------------------------------------------+
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// | branch : BSF (Best So Far)
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// | file : $Id$
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// | last update : $Date$
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// | last modifier : $Author$
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// | revision : $Revision$
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// +-----------------------------------------------------------------------+
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// | This program is free software; you can redistribute it and/or modify |
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// | it under the terms of the GNU General Public License as published by |
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// | the Free Software Foundation |
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// | |
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// | This program is distributed in the hope that it will be useful, but |
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// | WITHOUT ANY WARRANTY; without even the implied warranty of |
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// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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// | General Public License for more details. |
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// | |
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// | You should have received a copy of the GNU General Public License |
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// | along with this program; if not, write to the Free Software |
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// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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// | USA. |
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// +-----------------------------------------------------------------------+
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// validate_mail_address verifies whether the given mail address has the
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// right format. ie someone@domain.com "someone" can contain ".", "-" or
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// even "_". Exactly as "domain". The extension doesn't have to be
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// "com". The mail address can also be empty.
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// If the mail address doesn't correspond, an error message is returned.
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function validate_mail_address( $mail_address )
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{
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global $lang;
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if ( $mail_address == '' )
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{
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return '';
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}
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$regex = '/^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)*\.[a-z]+$/';
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if ( !preg_match( $regex, $mail_address ) )
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{
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return $lang['reg_err_mail_address'];
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}
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}
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function register_user($login, $password, $mail_address)
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{
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global $lang, $conf;
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$errors = array();
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if ($login == '')
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{
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array_push($errors, $lang['reg_err_login1']);
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}
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if (ereg("^.* $", $login))
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{
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array_push($errors, $lang['reg_err_login2']);
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}
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if (ereg("^ .*$", $login))
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{
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array_push($errors, $lang['reg_err_login3']);
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}
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if (get_userid($login))
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{
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array_push($errors, $lang['reg_err_login5']);
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}
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$mail_error = validate_mail_address($mail_address);
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if ('' != $mail_error)
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{
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array_push($errors, $mail_error);
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}
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// if no error until here, registration of the user
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if (count($errors) == 0)
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{
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// what will be the inserted id ?
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$query = '
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SELECT MAX('.$conf['user_fields']['id'].') + 1
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FROM '.USERS_TABLE.'
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;';
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list($next_id) = mysql_fetch_array(pwg_query($query));
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$insert =
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array(
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$conf['user_fields']['id'] => $next_id,
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$conf['user_fields']['username'] => mysql_escape_string($login),
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$conf['user_fields']['password'] => $conf['pass_convert']($password),
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$conf['user_fields']['email'] => $mail_address
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);
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include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
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mass_inserts(USERS_TABLE, array_keys($insert), array($insert));
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create_user_infos($next_id);
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}
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return $errors;
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}
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function setup_style($style)
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{
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return new Template(PHPWG_ROOT_PATH.'template/'.$style);
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}
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/**
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* find informations related to the user identifier
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*
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* @param int user identifier
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* @param boolean use_cache
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* @param array
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*/
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function getuserdata($user_id, $use_cache)
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{
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global $conf;
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$userdata = array();
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$query = '
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SELECT ';
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$is_first = true;
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foreach ($conf['user_fields'] as $pwgfield => $dbfield)
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{
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if ($is_first)
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{
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$is_first = false;
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}
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else
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{
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$query.= '
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, ';
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}
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$query.= $dbfield.' AS '.$pwgfield;
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}
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$query.= '
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FROM '.USERS_TABLE.'
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WHERE '.$conf['user_fields']['id'].' = \''.$user_id.'\'
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;';
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$row = mysql_fetch_array(pwg_query($query));
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while (true)
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{
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$query = '
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SELECT ui.*, uc.*
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FROM '.USER_INFOS_TABLE.' AS ui LEFT JOIN '.USER_CACHE_TABLE.' AS uc
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ON ui.user_id = uc.user_id
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WHERE ui.user_id = \''.$user_id.'\'
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;';
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$result = pwg_query($query);
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if (mysql_num_rows($result) > 0)
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{
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break;
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}
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else
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{
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create_user_infos($user_id);
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}
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}
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$row = array_merge($row, mysql_fetch_array($result));
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foreach ($row as $key => $value)
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{
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if (!is_numeric($key))
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{
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// If the field is true or false, the variable is transformed into a
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// boolean value.
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if ($value == 'true' or $value == 'false')
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{
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$userdata[$key] = get_boolean($value);
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}
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else
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{
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$userdata[$key] = $value;
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}
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}
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}
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if ($use_cache)
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{
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if (!isset($userdata['need_update'])
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or !is_bool($userdata['need_update'])
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or $userdata['need_update'] == true)
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{
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$userdata['forbidden_categories'] =
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calculate_permissions($userdata['id'], $userdata['status']);
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$query = '
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SELECT COUNT(DISTINCT(image_id)) as total
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FROM '.IMAGE_CATEGORY_TABLE.'
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WHERE category_id NOT IN ('.$userdata['forbidden_categories'].')
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;';
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list($userdata['nb_total_images']) = mysql_fetch_array(pwg_query($query));
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// update user cache
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$query = '
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DELETE FROM '.USER_CACHE_TABLE.'
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WHERE user_id = '.$userdata['id'].'
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;';
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pwg_query($query);
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$query = '
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INSERT INTO '.USER_CACHE_TABLE.'
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(user_id,need_update,forbidden_categories,nb_total_images)
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VALUES
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('.$userdata['id'].',\'false\',\''
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.$userdata['forbidden_categories'].'\','.$userdata['nb_total_images'].')
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;';
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pwg_query($query);
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}
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}
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return $userdata;
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}
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/*
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* deletes favorites of the current user if he's not allowed to see them
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*
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* @return void
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*/
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function check_user_favorites()
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{
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global $user;
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if ($user['forbidden_categories'] == '')
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{
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return;
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}
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// retrieving images allowed : belonging to at least one authorized
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// category
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$query = '
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SELECT DISTINCT f.image_id
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FROM '.FAVORITES_TABLE.' AS f INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic
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ON f.image_id = ic.image_id
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WHERE f.user_id = '.$user['id'].'
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AND ic.category_id NOT IN ('.$user['forbidden_categories'].')
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;';
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$result = pwg_query($query);
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$authorizeds = array();
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while ($row = mysql_fetch_array($result))
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{
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array_push($authorizeds, $row['image_id']);
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}
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$query = '
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SELECT image_id
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FROM '.FAVORITES_TABLE.'
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WHERE user_id = '.$user['id'].'
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;';
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$result = pwg_query($query);
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$favorites = array();
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while ($row = mysql_fetch_array($result))
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{
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array_push($favorites, $row['image_id']);
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}
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$to_deletes = array_diff($favorites, $authorizeds);
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if (count($to_deletes) > 0)
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{
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$query = '
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DELETE FROM '.FAVORITES_TABLE.'
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WHERE image_id IN ('.implode(',', $to_deletes).')
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AND user_id = '.$user['id'].'
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;';
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pwg_query($query);
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}
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}
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/**
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* calculates the list of forbidden categories for a given user
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*
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* Calculation is based on private categories minus categories authorized to
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* the groups the user belongs to minus the categories directly authorized
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* to the user. The list contains at least -1 to be compliant with queries
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* such as "WHERE category_id NOT IN ($forbidden_categories)"
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*
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* @param int user_id
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* @param string user_status
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* @return string forbidden_categories
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*/
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function calculate_permissions($user_id, $user_status)
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{
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global $user;
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$private_array = array();
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$authorized_array = array();
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$query = '
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SELECT id
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FROM '.CATEGORIES_TABLE.'
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WHERE status = \'private\'
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;';
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$result = pwg_query($query);
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while ($row = mysql_fetch_array($result))
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{
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array_push($private_array, $row['id']);
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}
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// retrieve category ids directly authorized to the user
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$query = '
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SELECT cat_id
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FROM '.USER_ACCESS_TABLE.'
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WHERE user_id = '.$user_id.'
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;';
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$authorized_array = array_from_query($query, 'cat_id');
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// retrieve category ids authorized to the groups the user belongs to
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$query = '
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SELECT cat_id
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FROM '.USER_GROUP_TABLE.' AS ug INNER JOIN '.GROUP_ACCESS_TABLE.' AS ga
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ON ug.group_id = ga.group_id
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WHERE ug.user_id = '.$user_id.'
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;';
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$authorized_array =
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array_merge(
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$authorized_array,
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array_from_query($query, 'cat_id')
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);
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// uniquify ids : some private categories might be authorized for the
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// groups and for the user
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$authorized_array = array_unique($authorized_array);
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// only unauthorized private categories are forbidden
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$forbidden_array = array_diff($private_array, $authorized_array);
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// if user is not an admin, locked categories are forbidden
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if (!is_admin($user_status))
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{
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$query = '
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SELECT id
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FROM '.CATEGORIES_TABLE.'
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WHERE visible = \'false\'
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;';
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$result = pwg_query($query);
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while ($row = mysql_fetch_array($result))
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{
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array_push($forbidden_array, $row['id']);
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}
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$forbidden_array = array_unique($forbidden_array);
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}
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if ( empty($forbidden_array) )
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{// at least, the list contains -1 values. This category does not exists so
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// where clauses such as "WHERE category_id NOT IN(-1)" will always be
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// true.
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array_push($forbidden_array, '-1');
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}
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return implode(',', $forbidden_array);
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}
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/**
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* returns the username corresponding to the given user identifier if exists
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*
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* @param int user_id
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* @return mixed
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*/
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function get_username($user_id)
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{
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global $conf;
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$query = '
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SELECT '.$conf['user_fields']['username'].'
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FROM '.USERS_TABLE.'
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WHERE '.$conf['user_fields']['id'].' = '.intval($user_id).'
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;';
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$result = pwg_query($query);
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if (mysql_num_rows($result) > 0)
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{
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list($username) = mysql_fetch_row($result);
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}
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else
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{
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return false;
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}
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return $username;
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}
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/**
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* returns user identifier thanks to his name, false if not found
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*
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* @param string username
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* @param int user identifier
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*/
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function get_userid($username)
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{
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global $conf;
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$username = mysql_escape_string($username);
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$query = '
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SELECT '.$conf['user_fields']['id'].'
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FROM '.USERS_TABLE.'
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WHERE '.$conf['user_fields']['username'].' = \''.$username.'\'
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;';
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$result = pwg_query($query);
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if (mysql_num_rows($result) == 0)
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{
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return false;
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}
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else
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{
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list($user_id) = mysql_fetch_row($result);
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return $user_id;
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}
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}
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/**
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* search an available feed_id
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*
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* @return string feed identifier
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*/
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function find_available_feed_id()
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{
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while (true)
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{
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$key = generate_key(50);
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$query = '
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SELECT COUNT(*)
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FROM '.USER_FEED_TABLE.'
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WHERE id = \''.$key.'\'
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;';
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list($count) = mysql_fetch_row(pwg_query($query));
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if (0 == $count)
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{
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return $key;
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}
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}
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}
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/**
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* add user informations based on default values
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*
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* @param int user_id
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*/
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function create_user_infos($user_id)
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{
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global $conf;
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list($dbnow) = mysql_fetch_row(pwg_query('SELECT NOW();'));
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$insert =
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array(
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'user_id' => $user_id,
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'status' => $user_id == $conf['webmaster_id'] ? 'admin' : 'normal',
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'template' => $conf['default_template'],
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'nb_image_line' => $conf['nb_image_line'],
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'nb_line_page' => $conf['nb_line_page'],
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'language' => $conf['default_language'],
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'recent_period' => $conf['recent_period'],
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'expand' => boolean_to_string($conf['auto_expand']),
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'show_nb_comments' => boolean_to_string($conf['show_nb_comments']),
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'maxwidth' => $conf['default_maxwidth'],
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'maxheight' => $conf['default_maxheight'],
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'registration_date' => $dbnow,
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'enabled_high' => $conf['newuser_default_enabled_high']
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);
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include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
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mass_inserts(USER_INFOS_TABLE, array_keys($insert), array($insert));
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}
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/**
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* returns the groupname corresponding to the given group identifier if
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* exists
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*
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* @param int group_id
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* @return mixed
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*/
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function get_groupname($group_id)
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{
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$query = '
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SELECT name
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FROM '.GROUPS_TABLE.'
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WHERE id = '.intval($group_id).'
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;';
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$result = pwg_query($query);
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if (mysql_num_rows($result) > 0)
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{
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list($groupname) = mysql_fetch_row($result);
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}
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else
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{
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return false;
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}
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return $groupname;
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}
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/**
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* return the file path of the given language filename, depending on the
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* availability of the file
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*
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* in descending order of preference: user language, default language,
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* PhpWebGallery default language.
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*
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* @param string filename
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* @return string filepath
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*/
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function get_language_filepath($filename)
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{
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global $user, $conf;
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$directories =
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array(
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PHPWG_ROOT_PATH.'language/'.$user['language'],
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PHPWG_ROOT_PATH.'language/'.$conf['default_language'],
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PHPWG_ROOT_PATH.'language/'.PHPWG_DEFAULT_LANGUAGE
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);
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foreach ($directories as $directory)
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{
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$filepath = $directory.'/'.$filename;
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if (file_exists($filepath))
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{
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return $filepath;
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}
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}
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return false;
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}
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/*
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* Performs all required actions for user login
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* @param int user_id
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* @param bool remember_me
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* @return void
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*/
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function log_user($user_id, $remember_me)
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{
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global $conf;
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$session_length = $conf['session_length'];
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if ($remember_me)
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{
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$session_length = $conf['remember_me_length'];
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}
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session_set_cookie_params($session_length);
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session_start();
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$_SESSION['id'] = $user_id;
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}
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/*
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* Return access_type definition of uuser
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* Test does with user status
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* @return bool
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*/
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function get_access_type_status($user_status = '')
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{
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global $user;
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if (($user_status == '') and isset($user['status']))
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{
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$user_status = $user['status'];
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}
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|
|
$access_type_status = ACCESS_NONE;
|
|
switch ($user_status)
|
|
{
|
|
case 'guest':
|
|
case 'generic':
|
|
{
|
|
$access_type_status = ACCESS_GUEST;
|
|
break;
|
|
}
|
|
case 'normal':
|
|
{
|
|
$access_type_status = ACCESS_CLASSIC;
|
|
break;
|
|
}
|
|
case 'admin':
|
|
{
|
|
$access_type_status = ACCESS_ADMINISTRATOR;
|
|
break;
|
|
}
|
|
case 'webmaster':
|
|
{
|
|
$access_type_status = ACCESS_WEBMASTER;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return $access_type_status;
|
|
}
|
|
|
|
/*
|
|
* Return if user have access to access_type definition
|
|
* Test does with user status
|
|
* @return bool
|
|
*/
|
|
function is_autorize_status($access_type, $user_status = '')
|
|
{
|
|
return (get_access_type_status($user_status) >= $access_type);
|
|
}
|
|
|
|
/*
|
|
* Check if user have access to access_type definition
|
|
* Stop action if there are not access
|
|
* Test does with user status
|
|
* @return none
|
|
*/
|
|
function check_status($access_type, $user_status = '')
|
|
{
|
|
if (!is_autorize_status($access_type, $user_status))
|
|
{
|
|
access_denied();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Return if user is an administrator
|
|
* @return bool
|
|
*/
|
|
function is_admin($user_status = '')
|
|
{
|
|
return is_autorize_status(ACCESS_ADMINISTRATOR, $user_status);
|
|
}
|
|
|
|
/*
|
|
* Return if current user is an adviser
|
|
* @return bool
|
|
*/
|
|
function is_adviser()
|
|
{
|
|
global $user;
|
|
|
|
return ($user['adviser'] == 'true');
|
|
}
|
|
?>
|