Add interface PlIteraface and the corresponding abstract class

[platal.git] / classes / env.php

<?php
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 *  Copyright (C) 2003-2010 Polytechnique.org                              *
 *  http://opensource.polytechnique.org/                                   *
 *                                                                         *
 *  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; either version 2 of the License, or      *
 *  (at your option) any later version.                                    *
 *                                                                         *
 *  This program 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 this program; if not, write to the Free Software            *
 *  Foundation, Inc.,                                                      *
 *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
 ***************************************************************************/

class Env
{
    public static function _get($key, $default)
    {
        return isset($_REQUEST[$key]) ? $_REQUEST[$key] : $default;
    }

    public static function has($key)
    {
        return isset($_REQUEST[$key]);
    }

    public static function kill($key)
    {
        unset($_REQUEST[$key]);
    }

    public static function v($key, $default = null)
    {
        return Env::_get($key, $default);
    }

    public static function s($key, $default = '')
    {
        return (string)Env::_get($key, $default);
    }

    public static function t($key, $default = '')
    {
        return trim(Env::s($key, $default));
    }

    public static function blank($key, $strict = false)
    {
        if (!Env::has($key)) {
            return true;
        }
        $var = $strict ? Env::s($key) : Env::t($key);
        return empty($var);
    }

    public static function b($key, $default = false)
    {
        return (bool)Env::_get($key, $default);
    }

    public static function i($key, $default = 0)
    {
        $i = Env::_get($key, $default);
        return is_numeric($i) ? intval($i) : $default;
    }

    public static function l(array $keys)
    {
        return array_map(array('Env', 'v'), $keys);
    }
}

class Post
{
    public static function _get($key, $default)
    {
        return isset($_POST[$key]) ? $_POST[$key] : $default;
    }

    public static function has($key)
    {
        return isset($_POST[$key]);
    }

    public static function kill($key)
    {
        unset($_POST[$key]);
    }

    public static function v($key, $default = null)
    {
        return Post::_get($key, $default);
    }

    public static function b($key, $default = false)
    {
        return (bool)Post::_get($key, $default);
    }

    public static function s($key, $default = '')
    {
        return (string)Post::_get($key, $default);
    }

    public static function t($key, $default = '')
    {
        return trim(Post::s($key, $default));
    }

    public static function blank($key, $strict = false)
    {
        if (!Post::has($key)) {
            return true;
        }
        $var = $strict ? Post::s($key) : Post::t($key);
        return empty($var);
    }

    public static function i($key, $default = 0)
    {
        $i = Post::_get($key, $default);
        return is_numeric($i) ? intval($i) : $default;
    }

     public static function l(array $keys)
    {
        return array_map(array('Post', 'v'), $keys);
    }
}

class Get
{
    public static function _get($key, $default)
    {
        return isset($_GET[$key]) ? $_GET[$key] : $default;
    }

    public static function has($key)
    {
        return isset($_GET[$key]);
    }

    public static function kill($key)
    {
        unset($_GET[$key]);
    }

    public static function v($key, $default = null)
    {
        return Get::_get($key, $default);
    }

    public static function b($key, $default = false)
    {
        return (bool)Get::_get($key, $default);
    }

    public static function s($key, $default = '')
    {
        return (string)Get::_get($key, $default);
    }

    public static function t($key, $default = '')
    {
        return trim(Get::s($key, $default));
    }

    public static function blank($key, $strict = false)
    {
        if (!Get::has($key)) {
            return true;
        }
        $var = $strict ? Get::s($key) : Get::t($key);
        return empty($var);
    }

    public static function i($key, $default = 0)
    {
        $i = Get::_get($key, $default);
        return is_numeric($i) ? intval($i) : $default;
    }

    public static function l(array $keys)
    {
        return array_map(array('Get', 'v'), $keys);
    }
}

class Cookie
{
    public static function _get($key, $default)
    {
        global $globals;
        $key = $globals->cookie_ns . $key;
        return isset($_COOKIE[$key]) ? $_COOKIE[$key] : $default;
    }

    public static function has($key)
    {
        global $globals;
        $key = $globals->cookie_ns . $key;
        return isset($_COOKIE[$key]);
    }

    public static function kill($key)
    {
        global $globals;
        $key = $globals->cookie_ns . $key;
        setcookie($key, '', time() - 3600, $globals->cookie_path);
        unset($_COOKIE[$key]);
    }

    public static function set($key, $value, $days, $secure = false) {
        global $globals;
        $key = $globals->cookie_ns . $key;
        if (!$secure || @$_SERVER['HTTPS']) {
            setcookie($key, $value, time() + 86400 * $days, $globals->cookie_path, '',
                      $secure, $secure);
            $_COOKIE[$key] = $value;
        }
    }

    public static function v($key, $default = null)
    {
        return Cookie::_get($key, $default);
    }

    public static function s($key, $default = '')
    {
        return (string)Cookie::_get($key, $default);
    }

    public static function t($key, $default = '')
    {
        return trim(Cookie::s($key, $default));
    }

    public static function blank($key, $strict = false)
    {
        if (!Cookie::has($key)) {
            return true;
        }
        $var = $strict ? Cookie::s($key) : Cookie::t($key);
        return empty($var);
    }

    public static function b($key, $default = false)
    {
        return (bool)Cookie::_get($key, $default);
    }

    public static function i($key, $default = 0)
    {
        $i = Cookie::_get($key, $default);
        return is_numeric($i) ? intval($i) : $default;
    }

    public static function l(array $keys)
    {
        return array_map(array('Cookie', 'v'), $keys);
    }
}

function fix_gpc_magic(&$item, $key) {
    if (is_array($item)) {
        array_walk($item, 'fix_gpc_magic');
    } else {
        $item = stripslashes($item);
    }
}

if (ini_get('magic_quotes_gpc') && empty($DONT_FIX_GPC)) {
    array_walk($_GET, 'fix_gpc_magic');
    array_walk($_POST, 'fix_gpc_magic');
    array_walk($_COOKIE, 'fix_gpc_magic');
    array_walk($_REQUEST, 'fix_gpc_magic');
}

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?>