<?php

/*
 * Copyright (C) 2004 ReiniUrban
 *
 * This file is part of PhpWiki.
 *
 * PhpWiki 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.
 *
 * PhpWiki 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 PhpWiki; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

class _FilePassUser
    extends _PassUser
    /**
     * Check users defined in a .htaccess style file
     * username:crypt\n...
     *
     * Preferences are handled in _PassUser
     */
{
    public $_file, $_may_change;

    // This can only be called from _PassUser, because the parent class
    // sets the pref methods, before this class is initialized.
    function _FilePassUser($UserName = '', $prefs = false, $file = '')
    {
        if (!$this->_prefs and isa($this, "_FilePassUser")) {
            if ($prefs) $this->_prefs = $prefs;
            if (!isset($this->_prefs->_method))
                _PassUser::_PassUser($UserName);
        }
        $this->_userid = $UserName;
        // read the .htaccess style file. We use our own copy of the standard pear class.
        $this->_may_change = defined('AUTH_USER_FILE_STORABLE') && AUTH_USER_FILE_STORABLE;
        if (empty($file) and defined('AUTH_USER_FILE'))
            $file = AUTH_USER_FILE;
        // same style as in main.php
        include_once(dirname(__FILE__) . "/../pear/File_Passwd.php");
        // "__PHP_Incomplete_Class"
        if (!empty($file) or empty($this->_file) or !isa($this->_file, "File_Passwd"))
            $this->_file = new File_Passwd($file, false, $file . '.lock');
        else
            return false;
        return $this;
    }

    function mayChangePass()
    {
        return $this->_may_change;
    }

    function userExists()
    {
        if (!$this->isValidName()) {
            return $this->_tryNextUser();
        }
        $this->_authmethod = 'File';
        if (isset($this->_file->users[$this->_userid]))
            return true;

        return $this->_tryNextUser();
    }

    function checkPass($submitted_password)
    {
        if (!$this->isValidName()) {
            trigger_error(_("Invalid username."), E_USER_WARNING);
            return $this->_tryNextPass($submitted_password);
        }
        if (!$this->_checkPassLength($submitted_password)) {
            return WIKIAUTH_FORBIDDEN;
        }
        //include_once 'lib/pear/File_Passwd.php';
        if ($this->_file->verifyPassword($this->_userid, $submitted_password)) {
            $this->_authmethod = 'File';
            $this->_level = WIKIAUTH_USER;
            if ($this->isAdmin()) // member of the Administrators group
                $this->_level = WIKIAUTH_ADMIN;
            return $this->_level;
        }

        return $this->_tryNextPass($submitted_password);
    }

    function storePass($submitted_password)
    {
        if (!$this->isValidName()) {
            return false;
        }
        if ($this->_may_change) {
            $this->_file = new File_Passwd($this->_file->filename, true,
                $this->_file->filename . '.lock');
            $result = $this->_file->modUser($this->_userid, $submitted_password);
            $this->_file->close();
            $this->_file = new File_Passwd($this->_file->filename, false);
            return $result;
        }
        return false;
    }

}

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