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<?php
/***************************************************************************
* functions_user.inc.php *
* -------------------- *
* application : PhpWebGallery 1.3 <http://phpwebgallery.net> *
* author : Pierrick LE GALL <pierrick@z0rglub.com> *
* *
* $Id$
* *
***************************************************************************
***************************************************************************
* *
* 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; *
* *
***************************************************************************/
// validate_mail_address verifies whether the given mail address has the
// right format. ie someone@domain.com "someone" can contain ".", "-" or
// even "_". Exactly as "domain". The extension doesn't have to be
// "com". The mail address can also be empty.
// If the mail address doesn't correspond, an error message is returned.
function validate_mail_address( $mail_address )
{
global $lang;
if ( $mail_address == '' )
{
return '';
}
$regex = '/^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)*\.[a-z]+$/';
if ( !preg_match( $regex, $mail_address ) )
{
return $lang['reg_err_mail_address'];
}
}
function register_user( $login, $password, $password_conf,
$mail_address, $status = 'guest' )
{
global $lang;
$error = array();
$i = 0;
// login must not
// 1. be empty
// 2. start ou end with space character
// 3. include ' or " characters
// 4. be already used
if ( $login == '' ) $error[$i++] = $lang['reg_err_login1'];
if ( ereg( "^.* $", $login) ) $error[$i++] = $lang['reg_err_login2'];
if ( ereg( "^ .*$", $login ) ) $error[$i++] = $lang['reg_err_login3'];
if ( ereg( "'", $login ) or ereg( "\"", $login ) )
$error[$i++] = $lang['reg_err_login4'];
else
{
$query = 'SELECT id';
$query.= ' FROM '.PREFIX_TABLE.'users';
$query.= " WHERE username = '".$login."'";
$query.= ';';
$result = mysql_query( $query );
if ( mysql_num_rows($result) > 0 ) $error[$i++] = $lang['reg_err_login5'];
}
// given password must be the same as the confirmation
if ( $password != $password_conf ) $error[$i++] = $lang['reg_err_pass'];
$error_mail_address = validate_mail_address( $mail_address );
if ( $error_mail_address != '' ) $error[$i++] = $error_mail_address;
// if no error until here, registration of the user
if ( sizeof( $error ) == 0 )
{
// 1. retrieving default values, the ones of the user "guest"
$infos = array( 'nb_image_line', 'nb_line_page', 'language',
'maxwidth', 'maxheight', 'expand', 'show_nb_comments',
'short_period', 'long_period', 'template',
'forbidden_categories' );
$query = 'SELECT ';
for ( $i = 0; $i < sizeof( $infos ); $i++ )
{
if ( $i > 0 ) $query.= ',';
$query.= $infos[$i];
}
$query.= ' FROM '.PREFIX_TABLE.'users';
$query.= " WHERE username = 'guest'";
$query.= ';';
$row = mysql_fetch_array( mysql_query( $query ) );
// 2. adding new user
$query = 'INSERT INTO '.PREFIX_TABLE.'users';
$query.= ' (';
$query.= ' username,password,mail_address,status';
for ( $i = 0; $i < sizeof( $infos ); $i++ )
{
$query.= ','.$infos[$i];
}
$query.= ') values (';
$query.= " '".$login."'";
$query.= ",'".md5( $password )."'";
if ( $mail_address != '' ) $query.= ",'".$mail_address."'";
else $query.= ',NULL';
$query.= ",'".$status."'";
foreach ( $infos as $info ) {
$query.= ',';
if ( !isset( $row[$info] ) ) $query.= 'NULL';
else $query.= "'".$row[$info]."'";
}
$query.= ');';
mysql_query( $query );
// 3. retrieving the id of the newly created user
$query = 'SELECT id';
$query.= ' FROM '.PREFIX_TABLE.'users';
$query.= " WHERE username = '".$login."';";
$row = mysql_fetch_array( mysql_query( $query ) );
$user_id = $row['id'];
// 4. adding access to the new user, the same as the user "guest"
$query = 'SELECT cat_id';
$query.= ' FROM '.PREFIX_TABLE.'user_access as ua';
$query.= ','.PREFIX_TABLE.'users as u ';
$query.= ' where u.id = ua.user_id';
$query.= " and u.username = 'guest';";
$result = mysql_query( $query );
while( $row = mysql_fetch_array( $result ) )
{
$query = 'INSERT INTO '.PREFIX_TABLE.'user_access';
$query.= ' (user_id,cat_id) VALUES';
$query.= ' ('.$user_id.','.$row['cat_id'].');';
mysql_query ( $query );
}
// 5. associate new user to the same groups that the guest
$query = 'SELECT group_id';
$query.= ' FROM '.PREFIX_TABLE.'user_group AS ug';
$query.= ', '.PREFIX_TABLE.'users AS u';
$query.= " WHERE u.username = 'guest'";
$query.= ' AND ug.user_id = u.id';
$query.= ';';
$result = mysql_query( $query );
while( $row = mysql_fetch_array( $result ) )
{
$query = 'INSERT INTO '.PREFIX_TABLE.'user_group';
$query.= ' (user_id,group_id) VALUES';
$query.= ' ('.$user_id.','.$row['group_id'].')';
$query.= ';';
mysql_query ( $query );
}
// 6. has the same categories informations than guest
$query = 'SELECT category_id,date_last,nb_sub_categories';
$query.= ' FROM '.PREFIX_TABLE.'user_category AS uc';
$query.= ', '.PREFIX_TABLE.'users AS u';
$query.= " WHERE u.username = 'guest'";
$query.= ' AND uc.user_id = u.id';
$query.= ';';
$result = mysql_query( $query );
while( $row = mysql_fetch_array( $result ) )
{
$query = 'INSERT INTO '.PREFIX_TABLE.'user_category';
$query.= ' (user_id,category_id,date_last,nb_sub_categories) VALUES';
$query.= ' ('.$user_id.','.$row['category_id'];
$query.= ",'".$row['date_last']."',".$row['nb_sub_categories'].')';
$query.= ';';
mysql_query ( $query );
}
}
return $error;
}
function update_user( $user_id, $mail_address, $status,
$use_new_password = false, $password = '' )
{
$error = array();
$i = 0;
$error_mail_address = validate_mail_address( $mail_address );
if ( $error_mail_address != '' )
{
$error[$i++] = $error_mail_address;
}
if ( sizeof( $error ) == 0 )
{
$query = 'UPDATE '.PREFIX_TABLE.'users';
$query.= " SET status = '".$status."'";
if ( $use_new_password )
{
$query.= ", password = '".md5( $password )."'";
}
$query.= ', mail_address = ';
if ( $mail_address != '' )
{
$query.= "'".$mail_address."'";
}
else
{
$query.= 'NULL';
}
$query.= ' WHERE id = '.$user_id;
$query.= ';';
mysql_query( $query );
}
return $error;
}
function check_login_authorization()
{
global $user,$lang,$conf,$page;
if ( $user['is_the_guest'])
{
if ( $conf['access'] == 'restricted' || (isset($page['cat']) && $page['cat'] == 'fav' ) )
{
echo '<div style="text-align:center;">'.$lang['only_members'].'<br />';
echo '<a href="./identification.php">'.$lang['ident_title'].'</a></div>';
exit();
}
}
}
?>
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