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<?php
/*
* This file is part of Zoph.
*
* Zoph 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.
*
* Zoph is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with Zoph; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* A class to validate a user.
*/
class validator {
var $username;
var $password;
/*
* The constructor.
*/
function validator($username, $password) {
$this->username = $username;
$this->password = $password;
}
/*
* Validate a user.
*/
function validate() {
global $VALIDATOR;
return $this->$VALIDATOR();
}
/*
* Validate users using Zoph's database.
*/
function default_validate() {
$user = null;
// No username or password are given, and a default user is defined
// let's login as that...
if (!$this->username && !$this->password && DEFAULT_USER) {
$user = new user(DEFAULT_USER);
} else {
$query =
"select user_id from " . DB_PREFIX . "users where " .
"user_name = '" . escape_string($this->username) . "' and " .
"password = password('" . escape_string($this->password) . "')";
$result = mysql_query($query);
if (mysql_num_rows($result) == 1) {
$row = mysql_fetch_array($result);
$user = new user($row["user_id"]);
} else {
if (DEBUG) {
echo "No valid user found... trying old_password...<br>\n";
}
/*
* No valid user has been found. It could be that we've upgraded
* MySQL to a post-4.1 version and the password is still in
* the old format.
* Let's find out, first, we will determine if we're indeed
* running running a newer version than 4.1:
*/
$mysqlver=mysql_get_server_info();
list($mysqlmaj, $mysqlmin) = split("\.", $mysqlver, 2);
if (($mysqlmaj == 4 && $mysqlmin >= 1) || ($mysqlmaj >= 5) ) {
if (DEBUG) {
echo "Yep, we're running MySQL 4.1 or later<br>\n";
}
$query =
"select user_id from " . DB_PREFIX . "users where " .
"user_name = '" . escape_string($this->username) .
"' and " . "password = old_password('" .
escape_string($this->password) . "')";
$result = mysql_query($query);
if (mysql_num_rows($result) == 1) {
$row = mysql_fetch_array($result);
$user = new user($row["user_id"]);
/* Ok...we found the user, let's make sure
* this won't happen again...
*/
$query =
"update " . DB_PREFIX . "users " .
"set password=password('" .
escape_string($this->password) . "') " .
"where user_name = '" .
escape_string($this->username) . "' and " .
"password = old_password('" .
escape_string($this->password) . "')";
$result = mysql_query($query);
}
}
}
}
return $user;
}
/*
* Validate users using Zoph's database against the
* PHP_AUTH_USER and PHP_AUTH_PW variables.
*
* Contributed by Samuel Keim
*/
function php_validate() {
$user = null;
if (empty($this->username)) {
$this->username = $_SERVER['PHP_AUTH_USER'];
if (empty($pword)) {
$this->password = $_SERVER['PHP_AUTH_PW'];
}
}
return $this->default_validate();
}
/*
* Validate using an htpasswd file.
* (C) and GPL Asheesh Laroia, 2002
* Uses code by Jason Geiger and include()s "cdi@thewebmasters.net"'s
* Htpasswd PHP class
*/
function htpasswd_validate() {
/*
Due to licensing issues, the Htpaswd class is not distrubuted with
Zoph. You must download it before making use of this feature.
*/
$user = null;
include("Passwd.php");
$htpass = new File_Passwd(HTPASS_FILE);
if ($htpass->verifyPassword($this->username, $this->password)) {
$query =
"select user_id from " . DB_PREFIX . "users where " .
"user_name = '" . escape_string($this->username) . "'";
$result = mysql_query($query);
if (mysql_num_rows($result) == 0) {
// make a new user
$tmpUser = new user();
$tmpUser->set('user_name', $this->username);
$tmpUser->set('password', $this->password);
// make a new person
$tmpPerson = new person();
$tmpPerson->set('first_name', $this->username);
// put him in DB
$tmpPerson->insert();
$tmpUser->set('person_id', $tmpPerson->get('person_id'));
if (DEFAULT_USER) {
// Give user same privileges as Guest:
$guestUser = new user(DEFAULT_USER);
$privNames = array(
'browse_people',
'browse_places',
'detailed_people',
'import',
'lightbox_id');
foreach ($privNames as $q) {
$tmpUser->set($q, $guestUser->get($q));
}
// Now, grant special privileges of being registered
$privNames = array(
'detailed_people' => 1,
'import' => 1);
foreach ($privNames as $k => $v) {
$tmpUser->set($k, $v);
}
}
// Put a row in the DB with this cool dude's info
$tmpUser->insert();
// And return a new user of that row number
$user = new user($tmpUser->get('user_id'));
}
else if ((mysql_num_rows($result) == 1)) {
$row = mysql_fetch_array($result);
$user = new user($row["user_id"]);
}
}
// Fall back to DEFAULT_USER
// Would it have been better to just fall back to default_validate()?
// For code reuse's sake, perhaps this should be its own function,
// and in each we just say "$user = default_user();"
else if (DEFAULT_USER) {
$user = new user(DEFAULT_USER);
}
return $user;
}
}
?>
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