Probelm installaing PHProxy

mo_mughrabi · #1 (**permalink**) 08-02-06, 09:51 PM

Dear All,

I been trying to install PHProxy on my webserver, though it works on my other hosting and on my local host but there is something about this server it refuses to work on! I even copied the whole PHP.ini from my localhost and used it on the webserver and restarted the apache but still it gives the same error, you can see the script at http://urood.com/proxy/index.php

Once you access the url you'll see the form page but once you write down any webpage and try to open its will give strange error says

Quote:

Fatal error: Non-static method PHProxy::decode_url() cannot be called statically in /var/www/vhosts/urood.com/httpdocs/proxy/PHProxy.class.php on line 276

I have copied the two main files used to fetch other pages please advice me,,

PHPoxy.class.php

PHP Code:


			
<?php



/*

   +-----------------+------------------------------------------------------------+

   |  Class          | PHProxy                                                    |

   |  Author         | ultimategamer00 (Abdullah A.)                              |

   |  Last Modified  | 12:42 AM 9/8/2005                                          |

   +-----------------+------------------------------------------------------------+

   |  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 PHProxy

{

    //

    // Configurable vars

    //



    var $banned_hosts = array

   (

       '.localhost',

       '127.0.0.1'

    );

    var $flags = array

    (

        'include_form'    => 1, 

        'remove_scripts'  => 1,

        'accept_cookies'  => 1,

        'show_images'     => 1,

        'show_referer'    => 1,

        'rotate13'        => 0,

        'base64_encode'   => 1,

        'strip_meta'      => 0,

        'strip_title'     => 0,

        'session_cookies' => 1

    );



    //

    // End Configurable vars

    //



    //

    // Edit the $config variables in index.php and javascript.js instead

    //



    var $config = array

    (

        'url_var_name'             => 'q',

        'flags_var_name'           => 'hl',

        'get_form_name'            => '__script_get_form',

        'proxy_url_form_name'      => 'poxy_url_form',

        'proxy_settings_form_name' => 'poxy_settings_form',

        'max_file_size'            => -1

    );



    var $version;

    var $script_url;

    var $http_host;

    var $url;

    var $url_segments;

    var $base;



    var $socket;





    var $request_method;

    var $request_headers;

    var $basic_auth_header;

    var $basic_auth_realm;

    var $data_boundary;

    var $post_body;



    var $response_headers;

    var $response_code;

    var $content_type;

    var $content_length;

    var $response_body;



    function PHProxy($config, $flags = 'previous')

    {

        $this->version    = '0.4';

        $this->http_host  = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : (isset($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : 'localhost');

        $this->script_url = 'http' 

                          . (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' ? 's' : '')

                          . '://'

                          . $this->http_host

                          . $_SERVER['PHP_SELF'];

        $this->request_method = $_SERVER['REQUEST_METHOD'];

        $this->config = $config;

        $this->set_flags($flags);



        if ($this->flags['rotate13'])

        {

            function encode_url($url)

            {

                return rawurlencode(str_rot13($url));

            }

            function decode_url($url)

            {

                return str_replace('&amp;', '&', str_rot13(rawurldecode($url)));

            }

        }

        else if ($this->flags['base64_encode'])

        {

            function encode_url($url)

            {

                return rawurlencode(base64_encode($url));

            }

            function decode_url($url)

            {

                return str_replace('&amp;', '&', base64_decode(rawurldecode($url)));

            }

        }

        else

        {

            function encode_url($url)

            {

                return rawurlencode($url);

            }

            function decode_url($url)

            {

                return str_replace('&amp;', '&', rawurldecode($url));

            }

        }

    }



    function start_transfer($url)

    {

        $this->set_url($url);

        $this->open_socket();

        $this->http_basic_auth();

        $this->set_request_headers();

        $this->set_response();

        $this->http_basic_auth();

    }



    function open_socket()

    {

        $this->socket = @fsockopen($this->url_segments['host'], $this->url_segments['port'], $err_no, $err_str, 12);



        if ($this->socket === false)

        {

            $this->trigger_error("$err_no: $err_str (URL: {$this->url_segments['host']})", encode_url($this->url));

        }

    }



    function set_response()

    {

        fwrite($this->socket, $this->request_headers);



        // Reset response headers and response body.



        $this->response_headers = '';

        $this->response_body = '';



        // Get the response headers first to extract content-type.

        do

        {

            $line = fgets($this->socket, 4096);

            $this->response_headers .= $line;

        }

        while ($line != "\r\n");



        $this->response_code = next(explode(' ', $this->response_headers));

        $this->set_content_type();

        $this->set_content_length();



        if ($this->flags['accept_cookies'] == 1)

        {

            $this->set_cookies();

        }



        if ($this->follow_location())

        {

            fclose($this->socket);

            $this->start_transfer($this->url);

        }

        else

        {

            // If content-type isn't html or xhtml, just dump the rest of the response back to the client since

            // we don't need to do any further operations on it. And if the file were like a large movie file, it

            // wouldn't fit in a variable without exceeding the memory limit alloted for the scipt.



            if (!in_array($this->content_type, array('text/html', 'application/xml+xhtml', 'application/xhtml+xml', 'text/css')) && (!$this->content_length || (int)$this->content_length <= $this->config['max_file_size']))

            {

                // Impose no time limit since it might be a large file that would take a long while to download.

                @set_time_limit(0);

                $this->send_response_headers();

                fpassthru($this->socket);

                fclose($this->socket);

                exit();

            } 



            // Read the HTML response in $this->response_body

            do

            {

                $data = fread($this->socket, 8192);

                $this->response_body .= $data;



            }   

            while (strlen($data) != 0);



            fclose($this->socket);

        }

    }



    function set_content_type()

    {

        if (preg_match("#content-type:([^\r\n]*)#i", $this->response_headers, $matches) && trim($matches[1]) != '')

        {

            $content_type_array = explode(';', $matches[1]);

            $this->content_type = strtolower(trim($content_type_array[0]));

        }

        else

        {

            $this->content_type = 'text/html';

        }

    }



    function set_content_length()

    {

        if (preg_match("#content-length:([^\r\n]*)#i", $this->response_headers, $matches) && trim($matches[1]) != '')

        {

            $this->content_length = trim($matches[1]);

        }

        else

        {

            $this->content_length = false;

        }

    }



    function http_basic_auth()

    {

        if (empty($this->response_code))

        {

            if (isset($this->url_segments['user'], $this->url_segments['pass']))

            {

                $this->set_authorization($this->url_segments['user'], $this->url_segments['pass']);

                return true;

            }

            else if (($stored_auth = $this->get_cookies('AUTH')) != '')

            {

                $this->basic_auth_header = $stored_auth;

                return true;

            }

        }

        else if ($this->response_code == 401 && preg_match('#www-authenticate:\s*basic\s+(?:realm="(.*?)")?#i', $this->response_headers, $matches))

        {

            header('Location: '. sprintf('%s?action=auth&server=%s&realm=%s&auth_url=%s', $this->script_url, encode_url($this->url_segments['host']), encode_url($matches[1]), encode_url($this->url)));

            exit();

        }

        return false;

    }



    function set_authorization($username, $password)

    {

        $this->basic_auth_header = base64_encode(sprintf('%s:%s', $username, $password));

        setcookie(urlencode("AUTH;{$this->url_segments['host']}"), $this->basic_auth_header, 0, '', $this->http_host);

    }



    function set_url($url)

    {

         $this->url = decode_url($url);



         if (strpos($this->url, '://') === false)

         {

             $this->url = 'http://' . $this->url;

         }



         if ($this->parse_url($this->url, $this->url_segments))

         {

             $this->base = $this->url_segments;



             if (!$this->is_allowed_host())

             {

                 exit();

             }

         }

         else

         {

             $this->trigger_error('Please supply a valid URL');

         }

    }



    function parse_url($url, & $container)

    {

        $temp = @parse_url($url);

        

        if (!empty($temp))

        {

            $temp['port']     = isset($temp['port']) ? $temp['port'] : 80;

            $temp['path']     = isset($temp['path']) ? $temp['path'] : '/';

            $temp['file']     = substr($temp['path'], strrpos($temp['path'], '/')+1);

            $temp['dir']      = substr($temp['path'], 0, strrpos($temp['path'], '/'));

            $temp['base']     = $temp['scheme'] . '://' . $temp['host'] . ($temp['port'] != 80 ?  ':' . $temp['port'] : '') . $temp['dir'];

            $temp['prev_dir'] = $temp['path'] != '/' ? substr($temp['base'], 0, strrpos($temp['base'], '/')+1) : $temp['base'] . '/';

            $container = $temp;



            return true;



            /*

                 URL: [url]http://username:password@www.example.com:80/dir/dir/page.php?foo=bar&foo2=bar2#bookmark[/url]

                 scheme   // http

                 host     // [url]www.example.com[/url]

                 port     // 80

                 user     // username

                 pass     // password

                 path     // /dir/dir/page.php

                 query    // foo=bar&foo2=bar2

                 fragment // bookmark

                 file     // page.php

                 dir      // /dir/dir

                 base     // [url]http://www.example.com/dir/dir[/url]

                 prev_dir // [url]http://www.example.com/dir/[/url]

             */

        }



        return false;

    }



    function is_allowed_host()

    {

        if (!empty($this->banned_hosts))

        {

            foreach ($this->banned_hosts as $host)

            {

                if (($host{0} == '.' && preg_match('#' . trim($host, '.') . '$#i', $this->url_segments['host'])) || strcasecmp($host, $this->url_segments['host']) == 0)

                {

                    return false;

                }

            }



            return true;

        }



        return true;

    }



    function modify_urls()

    {

        // this was a ***** to code

        // follows CGIProxy's logic of his HTML routine in some aspects



        $tags = array

        (

            'a'          => array('href'),

            'img'        => array('src', 'longdesc'),

            'image'      => array('src', 'longdesc'),

            'body'       => array('background'),

            'base'       => array('href'),

            'frame'      => array('src', 'longdesc'),

            'iframe'     => array('src', 'longdesc'),

            'head'       => array('profile'),

            'layer'      => array('src'),

            'input'      => array('src', 'usemap'),

            'form'       => array('action'),

            'area'       => array('href'),

            'link'       => array('href', 'src', 'urn'),

            'meta'       => array('content'),

            'param'      => array('value'),

            'applet'     => array('codebase', 'code', 'object', 'archive'),

            'object'     => array('usermap', 'codebase', 'classid', 'archive', 'data'),

            'script'     => array('src'),

            'select'     => array('src'),

            'hr'         => array('src'),

            'table'      => array('background'),

            'tr'         => array('background'),

            'th'         => array('background'),

            'td'         => array('background'),

            'bgsound'    => array('src'),

            'blockquote' => array('cite'),

            'del'        => array('cite'),

            'embed'      => array('src'),

            'fig'        => array('src', 'imagemap'),

            'ilayer'     => array('src'),

            'ins'        => array('cite'),

            'note'       => array('src'),

            'overlay'    => array('src', 'imagemap'),

            'q'          => array('cite'),

            'ul'         => array('src')

        );



        preg_match_all('#(<\s*style[^>]*>)(.*?)(<\s*/style[^>]*>)#is', $this->response_body, $matches, PREG_SET_ORDER);



        for ($i = 0, $count_i = count($matches); $i < $count_i; $i++)

        {

            $this->response_body = str_replace($matches[$i][0], $matches[$i][1]. $this->proxify_css($matches[$i][2]) .$matches[$i][3], $this->response_body);

        }



        preg_match_all("#<\s*([a-zA-Z]+)([^>]+)>#", $this->response_body, $matches);



        for ($i = 0, $count_i = count($matches[0]); $i < $count_i; $i++)

        {

            $tag = strtolower($matches[1][$i]);



            if (!isset($tags[$tag]) || !preg_match_all("#([a-zA-Z\-\/]+)\s*(?:=\s*(?:\"([^\">]*)\"?|'([^'>]*)'?|([^'\"\s]*)))?#", $matches[2][$i], $m, PREG_SET_ORDER))

            {

                continue;

            }



            $rebuild    = false;

            $extra_html = $temp = '';

            $attrs      = array();



            for ($j = 0, $count_j = count($m); $j < $count_j; $attrs[strtolower($m[$j][1])] = (isset($m[$j][4]) ? $m[$j][4] : (isset($m[$j][3]) ? $m[$j][3] : (isset($m[$j][2]) ? $m[$j][2] : false))), $j++);



            switch ($tag)

            {

                case 'base':

                    if (isset($attrs['href']))

                    {

                        $rebuild = true;  

                        $this->parse_url($attrs['href'], $this->base);

                        $attrs['href'] = $this->proxify_url($attrs['href']);

                    }

                    break;

                case 'body':

                    if ($this->flags['include_form'])

                    {

                        $rebuild = true;

                        ob_start();

                            include_once 'url_form.inc';

                            $extra_html = "\n" . ob_get_contents();

                        ob_end_clean();

                    }

                case 'meta':

                    if ($this->flags['strip_meta'] && isset($attrs['name']) && preg_match('#(keywords|description)#i', $attrs['name']))

                    {

                        $this->response_body = str_replace($matches[0][$i], '', $this->response_body);

                    }

                    if (isset($attrs['http-equiv'], $attrs['content']) && strtolower($attrs['http-equiv']) === 'refresh')

                    {

                        if (preg_match('#^(\s*[0-9]+\s*;\s*url=)(.*)#i', $attrs['content'], $content))

                        {

                            $rebuild = true;

                            $attrs['content'] =  $content[1] . $this->proxify_url($content[2]);

                        }

                    }

                    break;

                case 'head':

                    if (isset($attrs['profile']))

                    {

                        //space-separated list of urls

                        $rebuild = true;

                        $attrs['profile'] = implode(' ', array_map(array(&$this, 'proxify_url'), explode(' ', $attrs['profile'])));

                    }

                    break;

                case 'applet':

                    if (isset($attrs['codebase']))

                    {

                        $rebuild = true;

                        $temp = $this->base;

                        $this->parse_url($this->proxify_url(rtrim($attrs['codebase'], '/') . '/', false), $this->base);

                        unset($attrs['codebase']);

                    }

                    if (isset($attrs['code']) && strpos($attrs['code'], '/') !== false)

                    {

                        $rebuild = true;

                        $attrs['code'] = $this->proxify_url($attrs['code']);

                    }

                    if (isset($attrs['object']))

                    {

                        $rebuild = true;

                        $attrs['object'] = $this->proxify_url($attrs['object']);

                    }

                    if (isset($attrs['archive']))

                    {

                        $rebuild = true;

                        $attrs['archive'] = implode(',', array_map(array(&$this, 'proxify_url'), preg_split('#\s*,\s*#', $attrs['archive'])));

                    }

                    if (!empty($temp))

                    {

                        $this->base = $temp;

                    }

                    break;

                case 'object':

                    if (isset($attrs['usemap']))

                    {

                        $rebuild = true;

                        $attrs['usemap'] = $this->proxify_url($attrs['usemap']);

                    }

                    if (isset($attrs['codebase']))

                    {

                        $rebuild = true;

                        $temp = $this->base;

                        $this->parse_url($this->proxify_url(rtrim($attrs['codebase'], '/') . '/', false), $this->base);

                        unset($attrs['codebase']);

                    }

                    if (isset($attrs['data']))

                    {

                        $rebuild = true;

                        $attrs['data'] = $this->proxify_url($attrs['data']);

                    }

                    if (isset($attrs['classid']) && !preg_match('#^clsid:#i', $attrs['classid']))

                    {

                        $rebuild = true;

                        $attrs['classid'] = $this->proxify_url($attrs['classid']);

                    }

                    if (isset($attrs['archive']))

                    {

                        $rebuild = true;

                        $attrs['archive'] = implode(' ', array_map(array(&$this, 'proxify_url'), explode(' ', $attrs['archive'])));

                    }

                    if (!empty($temp))

                    {

                        $this->base = $temp;

                    }

                    break;

                case 'param':

                    if (isset($attrs['valuetype'], $attrs['value']) && strtolower($attrs['valuetype']) == 'ref' && preg_match('#^[\w.+-]+://#', $attrs['value']))

                    {

                        $rebuild = true;

                        $attrs['value'] = $this->proxify_url($attrs['value']);

                    }

                    break;

                case 'form':

                    if (isset($attrs['action']))

                    {

                        if (trim($attrs['action']) === '')

                        {

                            $rebuild = true;

                            $attrs['action'] = $this->url_segments['path'];

                        }

                        if (!isset($attrs['method']) || strtolower($attrs['method']) === 'get')

                        {

                            $rebuild = true;

                            $extra_html = '<input type="hidden" name="' . $this->config['get_form_name'] . '" value="' . encode_url($this->proxify_url($attrs['action'], false)) . '" />';

                            $attrs['action'] = '';

                            break;

                        }

                    } 

                default:

                    foreach ($tags[$tag] as $attr)

                    {

                        if (isset($attrs[$attr]))

                        {

                            $rebuild = true;

                            $attrs[$attr] = $this->proxify_url($attrs[$attr]);

                        }

                    }

                    break;

            }



            if ($rebuild)

            {

                $new_tag = "<$tag";

                foreach ($attrs as $name => $value)

                {

                    $delim = strpos($value, '"') && !strpos($value, "'") ? "'" : '"';

                    $new_tag .= ' ' . $name . ($value !== false ? '=' . $delim . $value . $delim : '');

                }



                $this->response_body = str_replace($matches[0][$i], $new_tag . '>' . $extra_html, $this->response_body);

            }

        }

    }



    function proxify_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(' . $this->proxify_css_url($matches[$i][1]) . ')', $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 . $this->proxify_css_url($matches[$i][1]) . $delim . (isset($matches[$i][4]) ? $matches[$i][4] : ''), $css);

       }



       return $css;

    }



    function proxify_css_url($url)

    {

        $url = trim($url);

        $delim = '';



        if (strpos($url, '"') === 0)

        {

            $delim = '"';

            $url   = trim($url, '"');

        }

        else if (strpos($url, "'") === 0)

        {

            $delim = "'";

            $url   = trim($url, "'");

        }



        $url = preg_replace('#\\\(.)#', '$1', $url);

        $url = trim($url);

        $url = $this->proxify_url($url);

        $url = preg_replace('#([\(\),\s\'"\\\])#', '\\$1', $url);



        return $delim . $url . $delim;

    }



    function set_flags($flags)

    {

        if (is_numeric($flags))

        {

            setcookie('flags', $flags, time()+(4*7*24*60*60), '', $this->http_host); 

            $this->flags['include_form']    = $flags{0} == 1 ? 1 : 0;

            $this->flags['remove_scripts']  = $flags{1} == 1 ? 1 : 0;

            $this->flags['accept_cookies']  = $flags{2} == 1 ? 1 : 0;

            $this->flags['show_images']     = $flags{3} == 1 ? 1 : 0;

            $this->flags['show_referer']    = $flags{4} == 1 ? 1 : 0;

            $this->flags['rotate13']        = $flags{5} == 1 ? 1 : 0;

            $this->flags['base64_encode']   = $flags{6} == 1 ? 1 : 0;

            $this->flags['strip_meta']      = $flags{7} == 1 ? 1 : 0;

            $this->flags['strip_title']     = $flags{8} == 1 ? 1 : 0;

            $this->flags['session_cookies'] = $flags{9} == 1 ? 1 : 0;

        }

        else if (isset($_COOKIE['flags']) && is_numeric($_COOKIE['flags']) && strlen($_COOKIE['flags']) == count($this->flags))

        {

            $this->set_flags($_COOKIE['flags']);

        }

        else

        {

            $flags = '';

            foreach ($this->flags as $flag)

            {

                $flags .= $flag;

            }



            $this->set_flags($flags);

        }

    }



    function set_request_headers()

    {

        $path = preg_replace('#/{2,}#', '/', $this->url_segments['path']);

        $path = preg_replace('#([^.]+)(\.\/)*#', '$1', $path);

        while ($path != ($path = preg_replace('#/[^/.]+/\.\./#', '/', $path)));

        $path = preg_replace('#^/(\.\./)*#', '/', $path);

        $path = preg_replace('#[^a-zA-Z0-9$\-_.+!*\'(),;/?:@=&]+#e', "'%'.dechex(ord('$0'))", $path);



        $headers  = "{$this->request_method} $path" . (isset($this->url_segments['query']) ? '?' . preg_replace('#[^a-zA-Z0-9$\-_.+!*\'(),;/?:@=&]+#e', "urlencode('$0')", urldecode($this->url_segments['query'])) : '') . " HTTP/1.0\r\n";

        $headers .= "Host: {$this->url_segments['host']}:{$this->url_segments['port']}\r\n";



        if (isset($_SERVER['HTTP_USER_AGENT']))

        {

            $headers .= 'User-Agent: ' . $_SERVER['HTTP_USER_AGENT'] . "\r\n";

        }

        if (isset($_SERVER['HTTP_ACCEPT']))

        {

            $headers .= 'Accept: ' . $_SERVER['HTTP_ACCEPT'] . "\r\n";

        }

        else

        {

            $headers .= "Accept: */*;q=0.1\r\n";

        }

        if ($this->flags['show_referer'] == 1)

        {

            $headers .= "Referer: {$this->url_segments['base']}\r\n";

        }

        if (($cookies = $this->get_cookies('COOKIE')) != '')

        {

            $headers .= "Cookie: $cookies\r\n";

        }

        if (!empty($this->basic_auth_header))

        {

            $headers .= "Authorization: Basic {$this->basic_auth_header}\r\n";

        }

        if ($this->request_method == 'POST')

        {

            if (!empty($_FILES) && (bool)ini_get('file_uploads'))

            {

                $this->data_boundary = 'PHProxy-' . md5(uniqid(rand(), true));

                $this->set_post_body('FILES/VARS', $_POST);

                $this->set_post_body('FILES/FILES', $_FILES);

                $headers .= "Content-Type: multipart/form-data; boundary={$this->data_boundary}\r\n";

                $headers .= "Content-Length: " . strlen($this->post_body) . "\r\n\r\n";

                $headers .= $this->post_body;

                $headers .= "--{$this->data_boundary}--";

            }

            else

            {

                $this->set_post_body('POST/VARS', $_POST);

                $headers .= "Content-Type: application/x-www-form-urlencoded\r\n";

                $headers .= "Content-Length: " . strlen($this->post_body) . "\r\n\r\n";

                $headers .= $this->post_body;

            }

        }



        $headers .= "\r\n";



        $this->request_headers = $headers;

    }



    function set_post_body($type, $array)

    {

        if ($type == 'FILES/FILES')

        {

            $array = $this->set_post_files($array);

            foreach ($array as $key => $file_info)

            {

                if (is_readable($file_info['tmp_name']))

                {

                    $this->post_body .= "--{$this->data_boundary}\r\n";

                    $this->post_body .= "Content-Disposition: form-data; name=\"$key\"; filename=\"{$file_info['name']}\"\r\n";

                    $this->post_body .= "Content-Type: {$file_info['type']}\r\n\r\n";

                    $handle = fopen($file_info['tmp_name'], 'rb');

                    $this->post_body .= fread($handle, filesize($file_info['tmp_name'])) . "\r\n";

                    fclose($handle);

                }

            }

        }

        else if ($type == 'FILES/VARS')

        {

            $array = $this->set_post_vars($array);

            foreach ($array as $key => $value)

            {

                $this->post_body .= "--{$this->data_boundary}\r\n";

                $this->post_body .= "Content-Disposition: form-data; name=\"$key\"\r\n\r\n";

                $this->post_body .= urldecode($value) . "\r\n";

            }

        }

        else if ($type == 'POST/VARS')

        {  

            $array = $this->set_post_vars($array);

            foreach ($array as $key => $value)

            {

                $this->post_body .= !empty($this->post_body) ? '&' : '';

                $this->post_body .= $key . '=' . $value;

            }

        }

    }



    function set_post_vars($array, $parent_key = null)

    {

        $tmp = array();



        foreach ($array as $key => $value)

        {

            $key = isset($parent_key) ? sprintf('%s[%s]', $parent_key, urlencode($key)) : urlencode($key);

            if (is_array($value))

            {

                $tmp = array_merge($tmp, $this->set_post_vars($value, $key));

            }

            else

            {

                $tmp[$key] = urlencode($value);

            }

        }

        return $tmp;

    }



    function set_post_files($array, $parent_key = null)

    {

        $tmp = array();



        foreach ($array as $key => $value)

        {

            $key = isset($parent_key) ? sprintf('%s[%s]', $parent_key, urlencode($key)) : urlencode($key);

            if (is_array($value))

            {

                $tmp = array_merge_recursive($tmp, $this->set_post_files($value, $key));

            }

            else if (preg_match('#^([^\[\]]+)\[(name|type|tmp_name)\]#', $key, $m))

            {

                $tmp[str_replace($m[0], $m[1], $key)][$m[2]] = $value;

            }

        }

        return $tmp;

    }



    function follow_location()

    {

        if (preg_match("#(location|uri|content-location):([^\r\n]*)#i", $this->response_headers, $matches))

        {

            if (($url = trim($matches[2])) == '')

            {

                return false;

            }



            $this->url = encode_url($this->proxify_url($url, false));

            return true;

        }

        return false;

    }



    function set_cookies()

    {

        if (preg_match_all("#set-cookie:([^\r\n]*)#i", $this->response_headers, $matches))

        {

            foreach ($matches[1] as $cookie_info)

            {

                preg_match('#^\s*([^=;,\s]*)=?([^;,\s]*)#', $cookie_info, $match)  && list(, $name, $value) = $match;

                preg_match('#;\s*expires\s*=([^;]*)#i', $cookie_info, $match)      && list(, $expires)      = $match;

                preg_match('#;\s*path\s*=\s*([^;,\s]*)#i', $cookie_info, $match)   && list(, $path)         = $match;

                preg_match('#;\s*domain\s*=\s*([^;,\s]*)#i', $cookie_info, $match) && list(, $domain)       = $match;

                preg_match('#;\s*(secure\b)#i', $cookie_info, $match)              && list(, $secure)       = $match;



                $expires = isset($expires) ? strtotime($expires) : false;

                $expires = ($this->flags['session_cookies'] && is_numeric($expires) && time()-$expires < 0) ? false : $expires;

                $path    = isset($path)    ? $path : $this->url_segments['dir'];

                $domain  = isset($domain)  ? $domain : $this->url_segments['host'];

                $domain  = rtrim($domain, '.');



                if (!preg_match("#$domain$#i", $this->url_segments['host']))

                {

                    continue;

                }



                if (count($_COOKIE) >= 15 && time()-$expires < 0)

                {

                    setcookie(current($_COOKIE), '', 1, '', $this->http_host);

                }



                setcookie(urlencode("COOKIE;$name;$domain;$path"), $value, $expires, '', $this->http_host);

            }



            $this->response_headers = str_replace($matches[0], '', $this->response_headers);

        }

    }



    function get_cookies($type = 'COOKIE', $restrict = true)

    {

        if (!empty($_COOKIE))

        {

            $cookies = '';



            foreach ($_COOKIE as $cookie_name => $cookie_value)

            {

                $cookie_args = explode(';', urldecode($cookie_name));



                if ($cookie_args[0] != $type || count($cookie_args) < 2)

                {

                    continue;

                }



                if ($type == 'AUTH')

                {

                    if ($this->url_segments['host'] == str_replace('_', '.', $cookie_args[1]))

                    {

                        return $cookie_value;

                    }

                    else

                    {

                        continue;

                    }

                }

                else if ($type == 'COOKIE' && isset($cookie_args[2]))

                {

                    $cookie_args[2] = str_replace('_', '.', $cookie_args[2]);



                    if ($restrict)

                    {

                        list(, $name, $domain, $path) = $cookie_args;



                        if (preg_match("#$domain$#i", $this->url_segments['host']) && preg_match("#^$path#i", $this->url_segments['path']))

                        {

                            $cookies .= $cookies != '' ? '; ' : '';

                            $cookies .= "$name=$cookie_value";

                        }

                    }

                    else

                    {

                        if ($cookies == '')

                        {

                            $cookies = array();

                        }

                        array_shift($cookie_args);

                        array_push($cookie_args, $cookie_value);

                        array_push($cookies, $cookie_args);

                    }

                }

            }

            return $cookies;

        }

    }



    function delete_cookies($hash)

    {

        $cookies = $this->get_cookies('COOKIE', false);



        foreach ($cookies as $args)

        {

            if ($hash == 'all' || $hash == md5($args[0].$args[1].$args[2].$args[3]))

            {

                setcookie(urlencode("COOKIE;$args[0];$args[1];$args[2]"), '', 1, '', $this->http_host);

            }

        }

    }



    function send_response_headers()

    {

        $headers = explode("\r\n", $this->response_headers);

        $headers[] = 'Content-Disposition: ' . ($this->content_type == 'application/octet_stream' ? 'attachment' : 'inline') . '; filename=' . $this->url_segments['file'];



        if (!empty($this->response_body))

        {

            $headers[] = 'Content-Length: ' . strlen($this->response_body);

        }



        $headers = array_filter($headers);



        foreach ($headers as $header)

        {

            header($header);

        }

    }



    function return_response($send_headers = true)

    {

        if ($this->content_type == 'text/css')

        {

            $this->response_body = $this->proxify_css($this->response_body);

        }

        else

        {

            if ($this->flags['strip_title'])

            {

                $this->response_body = preg_replace('#(<\s*title[^>]*>)(.*?)(<\s*/title[^>]*>)#is', '$1$3', $this->response_body);

            }

            if ($this->flags['remove_scripts'])

            {

                $this->remove_scripts();

            }

            if ($this->flags['show_images'] == 0)

            {

                $this->response_body = preg_replace('#<(img|image)[^>]*?>#si', '', $this->response_body);

            }



            $this->modify_urls();

        }



        if ($send_headers)

        {

            $this->send_response_headers();

        }



        return $this->response_body;

    }



    function remove_scripts()

    {

        $this->response_body = preg_replace('#<script[^>]*?>.*?</script>#si', '', $this->response_body); // Remove any scripts enclosed between <script />

        $this->response_body = preg_replace("#(\bon[a-z]+)\s*=\s*(?:\"([^\"]*)\"?|'([^']*)'?|([^'\"\s>]*))?#i", '', $this->response_body); // Remove javascript event handlers

        $this->response_body = preg_replace('#<noscript>(.*?)</noscript>#si', "$1", $this->response_body); //expose any html between <noscript />



    }



    function trigger_error($error, $retry = false)

    {

        header("Location: $this->script_url?" . ($retry ? "retry=$retry&error=$error" : "error=$error" ));

        exit(); 

    }



    function options_list($tabulate = false, $comments_on = false)

    {

        $output   = '';

        $comments = array();

        $comments['include_form']     = array('Include Form'   , 'Includes a mini URL-form on every HTML page');

        $comments['remove_scripts']   = array('Remove Scripts' , 'Remove client-side scripting (i.e. Javascript)');

        $comments['accept_cookies']   = array('Accept Cookies' , 'Accept HTTP cookies');

        $comments['show_images']      = array('Show Images'    , 'Show images');

        $comments['show_referer']     = array('Show Referer'   , 'Show referring website in HTTP headers');

        $comments['strip_meta']       = array('Strip Meta'     , 'Strip meta HTML tags');

        $comments['strip_title']      = array('Strip Title'    , 'Strip Website title');

        $comments['rotate13']         = array('Rotate13'       , 'Use rotate13 encoding on the URL');

        $comments['base64_encode']    = array('Base64'         , 'Use base64 encoding on the URL');

        $comments['session_cookies']  = array('Session Cookies', 'Store cookies for this session only');



        foreach ($this->flags as $flag_code => $flag_status)

        {

            $interface = array($comments[$flag_code][0], ' <input type="checkbox" name="ops[]"' . ($flag_status ? ' checked="checked"' : '') . ' /> ');



            if (!$tabulate)

            {

                $interface = array_reverse($interface);

            }



            $output .= ($tabulate    ? '<tr><td class="option">'  : '') 

                     . $interface[0]

                     . ($tabulate    ? '</td><td class="option">' : '') 

                     . $interface[1]

                     . ($comments_on ? $comments[$flag_code][1]   : '') 

                     . ($tabulate    ? '</td></tr>'               : '');

        }



        return $output;

    }



    function proxify_url($url, $proxify = true)

    {

        $url = trim($url);

        $fragment = ($hash_pos = strpos($url, '#') !== false) ? '#' . substr($url, $hash_pos) : '';



        if (!preg_match('#^[a-zA-Z]+://#', $url))

        {

            switch ($url{0})

            {

                case '/':

                    $url = $this->base['scheme'] . '://' . $this->base['host'] . ($this->base['port'] != 80 ? ':' . $this->base['port'] : '') . $url;

                    break;

                case '?':

                    $url = $this->base['base'] . '/' . $this->base['file'] . $url;

                    break;

                case '#':

                    $proxify = false;

                    break;

                case 'm':

                     if (substr($url, 0, 7) == 'mailto:')

                     {

                         $proxify = false;

                         break;

                     }

                default:

                    $url = $this->base['base'] . '/' . $url;

            }

        }



        return $proxify ? "{$this->script_url}?{$this->config['url_var_name']}=" . encode_url($url) . $fragment : $url;

    }

}



?>

Index.php

PHP Code:


			
<?php



require 'PHProxy.class.php';



$config = array

(

    'url_var_name'             => 'q',

    'flags_var_name'           => 'hl',

    'get_form_name'            => '__script_get_form',

    'proxy_url_form_name'      => 'poxy_url_form',

    'proxy_settings_form_name' => 'poxy_settings_form',

    'max_file_size'            => -1

);



$flags = 'prev';



if (isset($_GET[$config['flags_var_name']]))

{

    $flags = $_GET[$config['flags_var_name']];

}



$PHProxy = & new PHProxy($config, $flags);



if (isset($_GET[$PHProxy->config['get_form_name']]))

{

    $url = decode_url($_GET[$PHProxy->config['get_form_name']]);

    $qstr = preg_match('#\?#', $url) ? (strpos($url, '?') === strlen($url) ? '' : '&') : '?';

    $arr = explode('&', $_SERVER['QUERY_STRING']);

    if (preg_match('#^'.$PHProxy->config['get_form_name'].'#', $arr[0]))

    {

        array_shift($arr);

    }

    $url .= $qstr . implode('&', $arr);

    $PHProxy->start_transfer(encode_url($url));

    echo $PHProxy->return_response();

    exit();

}



if (isset($_GET[$PHProxy->config['url_var_name']]))

{

    $PHProxy->start_transfer($_GET[$PHProxy->config['url_var_name']]);

    echo $PHProxy->return_response();

    exit();

}



if (isset($_GET['action'], $_GET['delete']) && $_GET['action'] == 'cookies')

{

    $PHProxy->delete_cookies($_GET['delete']);

    header("Location: $PHProxy->script_url?action=cookies");

    exit();

}



if (isset($_POST['username'], $_POST['password'], $_POST['server'], $_POST['realm'], $_POST['auth_url']))

{

    $PHProxy->request_method = 'GET';

    $PHProxy->url_segments['host'] = decode_url($_POST['server']);

    $PHProxy->set_authorization($_POST['username'], $_POST['password']);

    $PHProxy->start_transfer($_POST['auth_url']);

    echo $PHProxy->return_response();

    exit();

}

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US">

<head>

  <title>PHProxy</title>

  <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />

  <link rel="stylesheet" type="text/css" href="style.css" media="all" />

  <script src="javascript.js" type="text/javascript"></script>

</head>

<body>

<div id="container">

  <div id="menu">

    <a href="<?php echo $_SERVER['PHP_SELF'] ?>">URL Form</a> | 

    <a href="?action=cookies">Manage Cookies</a>

  </div>

  <div class="title">PHProxy</div>

  <noscript><div class="error"><big>You have Javascript disabled. Please enable it to use the proxy</big></div></noscript>

<?php



if (isset($_GET['error']))

{

    echo '<div class="error"><b>Error:</b> ' . htmlspecialchars($_GET['error']) . '</div>';

    if (isset($_GET['retry']))

    {

        echo '<div class="error"><a href="'. $PHProxy->proxify_url(decode_url($_GET['retry'])) .'">Retry</a></div>';

    } 

}



if (isset($_GET['action']))

{

    if ($_GET['action'] == 'cookies')

    {

        $cookies = $PHProxy->get_cookies('COOKIE', false);



        if (!empty($cookies))

        {

            echo '<table style="width: 100%">';

            echo '<tr><td class="option" colspan="5"><a href="?action=cookies&delete=all">Clear All Cookies</a></td></tr>';

            echo '<tr><td class="head">Name</td><td class="head">Domain</td><td class="head">Path</td><td class="head">Value</td><td class="head">Action</td></tr>';



            for ($i = 0; $i < count($cookies); $i++)

            {

                $j = $i&1 ? ' class="shade"' : '';

                echo "<tr><td$j>{$cookies[$i][0]}</td><td$j>{$cookies[$i][1]}</td><td$j>{$cookies[$i][2]}</td>"

                   . "<td$j>" . wordwrap($cookies[$i][3], 15, ' ') ."</td><td$j><a href=". '"?action=cookies&delete='. md5(implode('', $cookies[$i])) . '">delete</a></td></tr>';

            }



            echo '</table>';

        }

        else

        {

            echo '<div class="error">No cookies available.</div>';

        }

    }

    else if ($_GET['action'] == 'auth' && isset($_GET['server'], $_GET['realm'], $_GET['auth_url']))

    {

        echo '<form method="post" action="' . $_SERVER['PHP_SELF'] . '">';

        echo '<input type="hidden" name="server" value="'. $_GET['server'] .'" />';

        echo '<input type="hidden" name="realm" value="'. $_GET['realm'] .'" />';

        echo '<input type="hidden" name="auth_url" value="'. $_GET['auth_url'] .'" />';

        echo '<table style="width: 100%">';

        echo '<tr><td colspan="2" class="option">Enter user name and password for <b>' . decode_url($_GET['realm']) . '</b> at <i>' . decode_url($_GET['server']) . '</i></td></tr>';

        echo '<tr><td width="30%" class="option">User name</td><td class="option"><input type="text" name="username" value="" /></td></tr>';

        echo '<tr><td width="30%" class="option">Password</td><td class="option"><input type="password" name="password" value="" /></td></tr>';

        echo '<tr><td colspan="2" style="text-align: center"><input type="submit" value="OK" /></td></tr>';

        echo '</table>';

        echo '</form>';

    }

} 

else

{

  ?>

  <form name="<?php echo $PHProxy->config['proxy_url_form_name'] ?>" method="get" action="<?php echo $_SERVER['PHP_SELF'] ?>">

  <input type="hidden" name="<?php echo $PHProxy->config['url_var_name'] ?>" value="" id="url_input" />

  <input type="hidden" name="<?php echo $PHProxy->config['flags_var_name'] ?>" value="" />

  </form>

  <form name="<?php echo $PHProxy->config['proxy_settings_form_name'] ?>" method="get" action="" onsubmit="return submit_form();">

  <table style="width: 100%">

  <tr><td class="option" style="width: 20%">URL</td><td class="option" style="width: 80%">&nbsp;<input type="text" name="url" size="70" value="" /></td></tr>

  <?php echo $PHProxy->options_list(true, true) ?>

  <tr><td class="option" style="width: 20%">New Window</td><td class="option" style="width: 80%"><input type="checkbox" name="new_window" />Open URL in a new window </td></tr>

  </table>

  <div style="text-align: center"><input type="submit" name="browse" value="Browse" onclick="return submit_form();" /></div>

  <div style="text-align: center">PHProxy <?php echo $PHProxy->version ?> &copy; 2005 <a href="http://www.whitefyre.com/">whiteFyre</a>

</div>

  </form>

  <?php

}



echo '</div></body></html>';

?>

mab · #2 (**permalink**) 08-02-06, 11:08 PM

Here is a link to an explanation of what is causing the problem - http://www.php.net/manual/en/languag...ces.whatdo.php

Basically, the use of "= &" in index.php is not supported in PHP 5 -

PHP Code:


			
$PHProxy = & new PHProxy($config, $flags);

mo_mughrabi · #3 (**permalink**) 08-03-06, 10:02 PM

Thank you mab for your replying.

I went through the site you have posted, there is nothing very clear about immigrating the code to PHP5. I would like to know if there is any small changes i can make to the code to make it run on PHP5, if that possible?

Regards,

mab · #4 (**permalink**) 08-03-06, 11:25 PM

The "&" is creating a "reference" to the instance of the class object. That link has this - "Since PHP 5, new return reference automatically..." This would imply that usages of "new" in PHP 5 is equivalent to " & new" so give the following a try -

PHP Code:


			
$PHProxy = new PHProxy($config, $flags);