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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* File::Passwd::Cvs
*
* PHP versions 4 and 5
*
* LICENSE: This source file is subject to version 3.0 of the PHP license
* that is available through the world-wide-web at the following URI:
* http://www.php.net/license/3_0.txt. If you did not receive a copy of
* the PHP License and are unable to obtain it through the web, please
* send a note to license@php.net so we can mail you a copy immediately.
*
* @category FileFormats
* @package File_Passwd
* @author Michael Wallner <mike@php.net>
* @copyright 2003-2005 Michael Wallner
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version CVS: $Id: Cvs.php,v 1.14 2005/03/30 18:33:33 mike Exp $
* @link http://pear.php.net/package/File_Passwd
*/
/**
* Requires File::Passwd::Common
*/
require_once 'File/Passwd/Common.php';
/**
* Manipulate CVS pserver passwd files.
*
* <kbd><u>
* A line of a CVS pserver passwd file consists of 2 to 3 colums:
* </u></kbd>
* <pre>
* user1:1HCoDDWxK9tbM:sys_user1
* user2:0O0DYYdzjCVxs
* user3:MIW9UUoifhqRo:sys_user2
* </pre>
*
* If the third column is specified, the CVS user named in the first column is
* mapped to the corresponding system user named in the third column.
* That doesn't really affect us - just for your interest :)
*
* <kbd><u>Output of listUser()</u></kbd>
* <pre>
* array
* + user => array
* + passwd => crypted_passwd
* + system => system_user
* + user => array
* + passwd => crypted_passwd
* + system => system_user
* </pre>
*
* @author Michael Wallner <mike@php.net>
* @package File_Passwd
* @version $Revision: 1.14 $
* @access public
*/
class File_Passwd_Cvs extends File_Passwd_Common
{
/**
* Constructor
*
* @access public
*/
function File_Passwd_Cvs($file = 'passwd')
{
parent::__construct($file);
}
/**
* Fast authentication of a certain user
*
* Returns a PEAR_Error if:
* o file doesn't exist
* o file couldn't be opened in read mode
* o file couldn't be locked exclusively
* o file couldn't be unlocked (only if auth fails)
* o file couldn't be closed (only if auth fails)
*
* @static call this method statically for a reasonable fast authentication
* @access public
* @return mixed true if authenticated, false if not or PEAR_Error
* @param string $file path to passwd file
* @param string $user user to authenticate
* @param string $pass plaintext password
*/
function staticAuth($file, $user, $pass)
{
$line = File_Passwd_Common::_auth($file, $user);
if (!$line || PEAR::isError($line)) {
return $line;
}
@list(,$real) = explode(':', $line);
return (File_Passwd_Cvs::generatePassword($pass, $real) === $real);
}
/**
* Apply changes and rewrite CVS passwd file
*
* Returns a PEAR_Error if:
* o directory in which the file should reside couldn't be created
* o file couldn't be opened in write mode
* o file couldn't be locked exclusively
* o file couldn't be unlocked
* o file couldn't be closed
*
* @throws PEAR_Error
* @access public
* @return mixed true on success or PEAR_Error
*/
function save()
{
$content = '';
foreach ($this->_users as $user => $v){
$content .= $user . ':' . $v['passwd'];
if (isset($v['system']) && !empty($v['system'])) {
$content .= ':' . $v['system'];
}
$content .= "\n";
}
return $this->_save($content);
}
/**
* Parse the CVS passwd file
*
* Returns a PEAR_Error if passwd file has invalid format.
*
* @throws PEAR_Error
* @access public
* @return mixed true on success or PEAR_Error
*/
function parse()
{
$this->_users = array();
foreach ($this->_contents as $line) {
$user = explode(':', $line);
if (count($user) < 2) {
return PEAR::raiseError(
FILE_PASSWD_E_INVALID_FORMAT_STR,
FILE_PASSWD_E_INVALID_FORMAT
);
}
@list($user, $pass, $system) = $user;
$this->_users[$user]['passwd'] = $pass;
if (!empty($system)) {
$this->_users[$user]['system'] = $system;
}
}
$this->_contents = array();
return true;
}
/**
* Add an user
*
* The username must start with an alphabetical character and must NOT
* contain any other characters than alphanumerics, the underline and dash.
*
* Returns a PEAR_Error if:
* o user already exists
* o user or system_user contains illegal characters
*
* @throws PEAR_Error
* @access public
* @return mixed true on success or PEAR_Error
* @param string $user the name of the user to add
* @param string $pass the password of the user tot add
* @param string $system_user the systemuser this user maps to
*/
function addUser($user, $pass, $system_user = '')
{
if ($this->userExists($user)) {
return PEAR::raiseError(
sprintf(FILE_PASSWD_E_EXISTS_ALREADY_STR, 'User ', $user),
FILE_PASSWD_E_EXISTS_ALREADY
);
}
if (!preg_match($this->_pcre, $user)) {
return PEAR::raiseError(
sprintf(FILE_PASSWD_E_INVALID_CHARS_STR, 'User ', $user),
FILE_PASSWD_E_INVALID_CHARS
);
}
@setType($system_user, 'string');
if (!empty($system_user) && !preg_match($this->_pcre, $system_user)) {
return PEAR::raiseError(
sprintf(
FILE_PASSWD_E_INVALID_CHARS_STR,
'System user ',
$system_user
),
FILE_PASSWD_E_INVALID_CHARS
);
}
$this->_users[$user]['passwd'] = $this->generatePassword($pass);
$this->_users[$user]['system'] = $system_user;
return true;
}
/**
* Verify the password of a certain user
*
* Returns a PEAR_Error if the user doesn't exist.
*
* @throws PEAR_Error
* @access public
* @return mixed true if passwords equal, false ifthe don't or PEAR_Error
* @param string $user user whose password should be verified
* @param string $pass the plaintext password that should be verified
*/
function verifyPasswd($user, $pass)
{
if (!$this->userExists($user)) {
return PEAR::raiseError(
sprintf(FILE_PASSWD_E_EXISTS_NOT_STR, 'User ', $user),
FILE_PASSWD_E_EXISTS_NOT
);
}
$real = $this->_users[$user]['passwd'];
return ($real === $this->generatePassword($pass, $real));
}
/**
* Change the password of a certain user
*
* Returns a PEAR_Error if user doesn't exist.
*
* @throws PEAR_Error
* @access public
* @return mixed true on success or PEAR_Error
*/
function changePasswd($user, $pass)
{
if (!$this->userExists($user)) {
return PEAR::raiseError(
sprintf(FILE_PASSWD_E_EXISTS_NOT_STR, 'User ', $user),
FILE_PASSWD_E_EXISTS_NOT
);
}
$this->_users[$user]['passwd'] = $this->generatePassword($pass);
return true;
}
/**
* Change the corresponding system user of a certain cvs user
*
* Returns a PEAR_Error if:
* o user doesn't exist
* o system user contains illegal characters
*
* @throws PEAR_Error
* @access public
* @return mixed true on success or PEAR_Error
*/
function changeSysUser($user, $system)
{
if (!$this->userExists($user)) {
return PEAR::raiseError(
sprintf(FILE_PASSWD_E_EXISTS_NOT_STR, 'User ', $user),
FILE_PASSWD_E_EXISTS_NOT
);
}
if (!preg_match($this->_pcre, $system)) {
return PEAR::raiseError(
sprintf(
FILE_PASSWD_E_INVALID_CHARS_STR,
'System user ',
$system_user
),
FILE_PASSWD_E_INVALID_CHARS
);
}
$this->_users[$user]['system'] = $system;
return true;
}
/**
* Generate crypted password
*
* @static
* @access public
* @return string the crypted password
* @param string $pass new plaintext password
* @param string $salt new crypted password from which to gain the salt
*/
function generatePasswd($pass, $salt = null)
{
return File_Passwd::crypt_des($pass, $salt);
}
/**
* @ignore
* @deprecated
*/
function generatePassword($pass, $salt = null)
{
return File_Passwd_Cvs::generatePasswd($pass, $salt);
}
}
?>
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