index.php

可以实现访问一些国内不能访问的站也能访问上

<?php

/*
   +-----------------+------------------------------------------------------------+
   |  Script         | PHProxy                                                    |
   |  Author         | Abdullah Arif                                              |
   |  Last Modified  | 5:27 PM 1/20/2007                                          |
   +-----------------+------------------------------------------------------------+
   |  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. |
   +------------------------------------------------------------------------------+
*/

error_reporting(E_ALL);

//
// CONFIGURABLE OPTIONS
//

$_config            = array
                    (
                        'url_var_name'             => 'q',
                        'flags_var_name'           => 'hl',
                        'get_form_name'            => '____pgfa',
                        'basic_auth_var_name'      => '____pbavn',
                        'max_file_size'            => -1,
                        'allow_hotlinking'         => 0,
                        'upon_hotlink'             => 1,
                        'compress_output'          => 0
                    );
$_flags             = array
                    (
                        'include_form'    => 1, 
                        'remove_scripts'  => 1,
                        'accept_cookies'  => 1,
                        'show_images'     => 1,
                        'show_referer'    => 1,
                        'rotate13'        => 0,
                        'base64_encode'   => 1,
                        'strip_meta'      => 1,
                        'strip_title'     => 0,
                        'session_cookies' => 1
                    );
$_frozen_flags      = array
                    (
                        'include_form'    => 0, 
                        'remove_scripts'  => 0,
                        'accept_cookies'  => 0,
                        'show_images'     => 0,
                        'show_referer'    => 0,
                        'rotate13'        => 0,
                        'base64_encode'   => 0,
                        'strip_meta'      => 0,
                        'strip_title'     => 0,
                        'session_cookies' => 0
                    );                    
$_labels            = array
                    (
                        'include_form'    => array('显示地址栏', '始终显示地址栏'), 
                        'remove_scripts'  => array('去除脚本', '去除客户端脚本(Javascript)'), 
                        'accept_cookies'  => array('允许Cookies', '允许存储Cookies'), 
                        'show_images'     => array('显示图片', '显示图片'), 
                        'show_referer'    => array('显示来源', '显示真实的来源网址'), 
                        'rotate13'        => array('ROT13加密', 'ROT13加密网址'), 
                        'base64_encode'   => array('Base64加密', 'Base64加密网址'), 
                        'strip_meta'      => array('去除Meta', '去除Meta标签'), 
                        'strip_title'     => array('去除标题', '去除页面标题'), 
                        'session_cookies' => array('Session Cookies', '只为当前Session存储COOKIES') 
                    );
                    
$_hosts             = array
                    (
                        '#^127\.|192\.168\.|10\.|172\.(1[6-9]|2[0-9]|3[01])\.|localhost#i'
                    );
$_hotlink_domains   = array();
$_insert            = array();

//
// END CONFIGURABLE OPTIONS. The ride for you ends here. Close the file.
//

$_iflags            = '';
$_system            = array
                    (
                        'ssl'          => extension_loaded('openssl') && version_compare(PHP_VERSION, '4.3.0', '>='),
                        'uploads'      => ini_get('file_uploads'),
                        'gzip'         => extension_loaded('zlib') && !ini_get('zlib.output_compression'),
                        'stripslashes' => get_magic_quotes_gpc()
                    );
$_proxify           = array('text/html' => 1, 'application/xml+xhtml' => 1, 'application/xhtml+xml' => 1, 'text/css' => 1);
$_version           = '0.5b2';
$_http_host         = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : (isset($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : 'localhost');
$_script_url        = 'http' . ((isset($_ENV['HTTPS']) && $_ENV['HTTPS'] == 'on') || $_SERVER['SERVER_PORT'] == 443 ? 's' : '') . '://' . $_http_host . ($_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443 ? ':' . $_SERVER['SERVER_PORT'] : '') . $_SERVER['PHP_SELF'];
$_script_base       = substr($_script_url, 0, strrpos($_script_url, '/')+1);
$_url               = '';
$_url_parts         = array();
$_base              = array();
$_socket            = null;
$_request_method    = $_SERVER['REQUEST_METHOD'];
$_request_headers   = '';
$_cookie            = '';
$_post_body         = '';
$_response_headers  = array();
$_response_keys     = array();  
$_http_version      = '';
$_response_code     = 0;
$_content_type      = 'text/html';
$_content_length    = false;
$_content_disp      = '';
$_set_cookie        = array();
$_retry             = false;
$_quit              = false;
$_basic_auth_header = '';
$_basic_auth_realm  = '';
$_auth_creds        = array();
$_response_body     = '';

//
// FUNCTION DECLARATIONS
//

function show_report($data)
{    
    include $data['which'] . '.inc.php';
    exit(0);
}

function add_cookie($name, $value, $expires = 0)
{
    return rawurlencode(rawurlencode($name)) . '=' . rawurlencode(rawurlencode($value)) . (empty($expires) ? '' : '; expires=' . gmdate('D, d-M-Y H:i:s \G\M\T', $expires)) . '; path=/; domain=.' . $GLOBALS['_http_host'];
}

function set_post_vars($array, $parent_key = null)
{
    $temp = array();

    foreach ($array as $key => $value)
    {
        $key = isset($parent_key) ? sprintf('%s[%s]', $parent_key, urlencode($key)) : urlencode($key);
        if (is_array($value))
        {
            $temp = array_merge($temp, set_post_vars($value, $key));
        }
        else
        {
            $temp[$key] = urlencode($value);
        }
    }
    
    return $temp;
}

function set_post_files($array, $parent_key = null)
{
    $temp = array();

    foreach ($array as $key => $value)
    {
        $key = isset($parent_key) ? sprintf('%s[%s]', $parent_key, urlencode($key)) : urlencode($key);
        if (is_array($value))
        {
            $temp = array_merge_recursive($temp, set_post_files($value, $key));
        }
        else if (preg_match('#^([^\[\]]+)\[(name|type|tmp_name)\]#', $key, $m))
        {
            $temp[str_replace($m[0], $m[1], $key)][$m[2]] = $value;
        }
    }

    return $temp;
}

function url_parse($url, & $container)
{
    $temp = @parse_url($url);

    if (!empty($temp))
    {
        $temp['port_ext'] = '';
        $temp['base']     = $temp['scheme'] . '://' . $temp['host'];

        if (isset($temp['port']))
        {
            $temp['base'] .= $temp['port_ext'] = ':' . $temp['port'];
        }
        else
        {
            $temp['port'] = $temp['scheme'] === 'https' ? 443 : 80;
        }
        
        $temp['path'] = isset($temp['path']) ? $temp['path'] : '/';
        $path         = array();
        $temp['path'] = explode('/', $temp['path']);
    
        foreach ($temp['path'] as $dir)
        {
            if ($dir === '..')
            {
                array_pop($path);
            }
            else if ($dir !== '.')
            {
                for ($dir = rawurldecode($dir), $new_dir = '', $i = 0, $count_i = strlen($dir); $i < $count_i; $new_dir .= strspn($dir{$i}, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789$-_.+!*\'(),?:@&;=') ? $dir{$i} : rawurlencode($dir{$i}), ++$i);
                $path[] = $new_dir;
            }
        }

        $temp['path']     = str_replace('/%7E', '/~', '/' . ltrim(implode('/', $path), '/'));
        $temp['file']     = substr($temp['path'], strrpos($temp['path'], '/')+1);
        $temp['dir']      = substr($temp['path'], 0, strrpos($temp['path'], '/'));
        $temp['base']    .= $temp['dir'];
        $temp['prev_dir'] = substr_count($temp['path'], '/') > 1 ? substr($temp['base'], 0, strrpos($temp['base'], '/')+1) : $temp['base'] . '/';
        $container = $temp;

        return true;
    }
    
    return false;
}

function complete_url($url, $proxify = true)
{
    $url = trim($url);
    
    if ($url === '')
    {
        return '';
    }
    
    $hash_pos = strrpos($url, '#');
    $fragment = $hash_pos !== false ? '#' . substr($url, $hash_pos) : '';
    $sep_pos  = strpos($url, '://');
    
    if ($sep_pos === false || $sep_pos > 5)
    {
        switch ($url{0})
        {
            case '/':
                $url = substr($url, 0, 2) === '//' ? $GLOBALS['_base']['scheme'] . ':' . $url : $GLOBALS['_base']['scheme'] . '://' . $GLOBALS['_base']['host'] . $GLOBALS['_base']['port_ext'] . $url;
                break;
            case '?':
                $url = $GLOBALS['_base']['base'] . '/' . $GLOBALS['_base']['file'] . $url;
                break;
            case '#':
                $proxify = false;
                break;
            case 'm':
                if (substr($url, 0, 7) == 'mailto:')
                {
                    $proxify = false;
                    break;
                }
            default:
                $url = $GLOBALS['_base']['base'] . '/' . $url;
        }
    }

    return $proxify ? "{$GLOBALS['_script_url']}?{$GLOBALS['_config']['url_var_name']}=" . encode_url($url) . $fragment : $url;
}

function proxify_inline_css($css)
{
    preg_match_all('#url\s*\(\s*(([^)]*(\\\))*[^)]*)(\)|$)?#i', $css, $matches, PREG_SET_ORDER);

    for ($i = 0, $count = count($matches); $i < $count; ++$i)
    {
        $css = str_replace($matches[$i][0], 'url(' . proxify_css_url($matches[$i][1]) . ')', $css);
    }
    
    return $css;
}

function proxify_css($css)
{
    $css = proxify_inline_css($css);

    preg_match_all("#@import\s*(?:\"([^\">]*)\"?|'([^'>]*)'?)([^;]*)(;|$)#i", $css, $matches, PREG_SET_ORDER);

    for ($i = 0, $count = count($matches); $i < $count; ++$i)
    {
        $delim = '"';
        $url   = $matches[$i][2];

        if (isset($matches[$i][3]))
        {
            $delim = "'";
            $url = $matches[$i][3];
        }

        $css = str_replace($matches[$i][0], '@import ' . $delim . proxify_css_url($matches[$i][1]) . $delim . (isset($matches[$i][4]) ? $matches[$i][4] : ''), $css);
    }

    return $css;
}

function proxify_css_url($url)
{
    $url   = trim($url);
    $delim = strpos($url, '"') === 0 ? '"' : (strpos($url, "'") === 0 ? "'" : '');

    return $delim . preg_replace('#([\(\),\s\'"\\\])#', '\\$1', complete_url(trim(preg_replace('#\\\(.)#', '$1', trim($url, $delim))))) . $delim;
}

//
// SET FLAGS
//

if (isset($_POST[$_config['url_var_name']]) && !isset($_GET[$_config['url_var_name']]) && isset($_POST[$_config['flags_var_name']]))
{    
    foreach ($_flags as $flag_name => $flag_value)
    {
        $_iflags .= isset($_POST[$_config['flags_var_name']][$flag_name]) ? (string)(int)(bool)$_POST[$_config['flags_var_name']][$flag_name] : ($_frozen_flags[$flag_name] ? $flag_value : '0');
    }
    
    $_iflags = base_convert(($_iflags != '' ? $_iflags : '0'), 2, 16);
}
else if (isset($_GET[$_config['flags_var_name']]) && !isset($_GET[$_config['get_form_name']]) && ctype_alnum($_GET[$_config['flags_var_name']]))
{
    $_iflags = $_GET[$_config['flags_var_name']];
}
else if (isset($_COOKIE['flags']) && ctype_alnum($_COOKIE['flags']))
{
    $_iflags = $_COOKIE['flags'];
}

if ($_iflags !== '')
{
    $_set_cookie[] = add_cookie('flags', $_iflags, time()+2419200);
    $_iflags = str_pad(base_convert($_iflags, 16, 2), count($_flags), '0', STR_PAD_LEFT);
    $i = 0;

    foreach ($_flags as $flag_name => $flag_value)
    {
        $_flags[$flag_name] = $_frozen_flags[$flag_name] ? $flag_value : (int)(bool)$_iflags{$i};
        $i++;
    }
}

//
// DETERMINE URL-ENCODING BASED ON FLAGS
//

if ($_flags['rotate13'])
{
    function encode_url($url)
    {
        return rawurlencode(str_rot13($url));
    }
    function decode_url($url)
    {
        return str_replace(array('&amp;', '&#38;'), '&', str_rot13(rawurldecode($url)));
    }
}
else if ($_flags['base64_encode'])
{
    function encode_url($url)
    {
        return rawurlencode(base64_encode($url));
    }
    function decode_url($url)
    {
        return str_replace(array('&amp;', '&#38;'), '&', base64_decode(rawurldecode($url)));
    }
}
else
{
    function encode_url($url)
    {
        return rawurlencode($url);
    }
    function decode_url($url)
    {
        return str_replace(array('&amp;', '&#38;'), '&', rawurldecode($url));
    }
}

//
// COMPRESS OUTPUT IF INSTRUCTED
//

if ($_config['compress_output'] && $_system['gzip'])
{
    ob_start('ob_gzhandler');