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annotate doc/www.powerfulproxy.com/public_html/do_it.php @ 613:c2879679114d draft

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PP (uncommented safe defaults and added useragent pass-through)
author Nick <nick@somerandomnick.ano>
date Sun, 18 Sep 2011 08:57:34 +0000
parents 83bc7f6e03ae
children 2b68d711a063
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1 <?php
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2 // Copyright Atiti, 2011
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3 // Version 0.1-2
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4 // Heavily modified by Ivo <Ivo@UCIS.nl>
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5
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6 if (!isset($_SERVER['PATH_INFO'])) die('PATH_INFO is not set');
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7 $pall = explode("/", $_SERVER['PATH_INFO']);
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8 if (count($pall) <= 1) die('Unexpected path format');
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9 array_shift($pall);
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10 $proto = array_shift($pall);
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11 $host = array_shift($pall);
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12 $hostparts = explode('.', $host);
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13 if (long2ip(ip2long($host))===$host) {
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14 if ($hostparts[0]!='1') die('Bad IP');
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15 } elseif (!preg_match("/ano|ntwrk$/",array_pop($hostparts))) die('Bad host');
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16 $path = implode('/', $pall);
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17 array_pop($pall);
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18 $rp = implode('/', $pall);
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19
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20 /* CONFIGURATION */
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21 $SERVICEURL = "http://powerfulproxy.com/do_it.php/";
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22
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23 $REWRITE_CONTENT_TYPES = array('text/html', 'text/xml', 'text/plain');
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24 $REWRITE_PATTERNS = array(
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25 /* Rewrite complete http/https URLs, enable one of the tree, and no more! */
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26 // '@(https?)://(([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?)@i' => $SERVICEURL.'$1/$2',
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27 // '@(src|href|action)\s*=\s*(\'|")(https?)://([^\'"]*)\2@i' => '$1=$2'.$SERVICEURL.'$3/$4$2',
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28 '@(<[^>]*)(src|href|action)\s*=\s*(\'|")(https?)://([^\'"]*)\3@i' => '$1$2=$3'.$SERVICEURL.'$4/$5$3',
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29 /* Rewrite URLs relative to site root, enable one of the tree, and no more! */
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30 // '@(src|href|action)\s*=\s*(\'|")/([^\'"]*)\2@i' => '$1=$2'.$SERVICEURL.$proto.'/'.$host.'/$3$2',
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31 '@(<[^>]*)(src|href|action)\s*=\s*(\'|")/([^\'"]*)\3@i' => '$1$2=$3'.$SERVICEURL.$proto.'/'.$host.'/$4$3',
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32 );
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33 if (file_exists("do_it.inc")) include "do_it.inc";
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34 if (!isset($CURL_OPTIONS)) $CURL_OPTIONS = array(
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35 // CURLOPT_USERAGENT => "AnoNet proxy",
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36 CURLOPT_USERAGENT => $_SERVER["HTTP_USER_AGENT"]." AnoNetProxy",
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37 CURLOPT_AUTOREFERER => TRUE,
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38 CURLOPT_CONNECTTIMEOUT => 15,
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39 CURLOPT_TIMEOUT => 28,
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40 CURLOPT_MAXREDIRS => 10,
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41 CURLOPT_FAILONERROR => FALSE,
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42 CURLOPT_HEADER => 1,
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43 CURLOPT_FOLLOWLOCATION => FALSE,
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44 // CURLOPT_INTERFACE => '0.0.0.0',
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45 CURLOPT_PROXY => "http://b.polipo.srn.ano:8000/",
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46 // CURLOPT_PROXYUSERPWD => 'username:password',
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47 );
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48 /* END OF CONFIGURATION */
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49
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50 $url = $proto."://".$host."/".$path;
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51 if (isset($_SERVER['QUERY_STRING']) && strlen($_SERVER['QUERY_STRING'])) $url .= "?".$_SERVER['QUERY_STRING'];
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52 $ch = curl_init($url);
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53 curl_setopt_array($ch, $CURL_OPTIONS);
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54 curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
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55 //curl_setopt($ch, CURLOPT_HEADER, FALSE);
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56 if (count($_POST)) {
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57 curl_setopt($ch, CURLOPT_POST, TRUE);
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58 curl_setopt($ch, CURLOPT_POSTFIELDS, $_POST);
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59 }
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60 $response = curl_exec($ch);
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61 list($header, $data) = explode("\r\n\r\n", $response, 2);
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62 if ($error = curl_error($ch)) die('CURL ERROR: '.$error);
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63 $info = curl_getinfo($ch);
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64
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65 header('Status: '.$info['http_code']);
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66 header('Content-Type: '.$info['content_type']);
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67
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68 $redirurl = "";
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69 if ($info['http_code'] === 301) {
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70 $headers = explode("\r\n", $header);
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71 foreach($headers as $h) {
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72 $cur_header = explode(": ", $h);
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73 if ($cur_header[0] == "Location") {
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74 $redirurl = preg_replace('@(https?://([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?)@', $SERVICEURL.str_replace("http://", "http/", "$1"), $cur_header[1]);
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75 $redirurl = str_replace(".php/http://", ".php/http/", $redirurl);
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76 header('Location: '.$redirurl);
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77 }
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78 }
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79 } else {
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80 if (in_array(strtok($info['content_type'], ';'), $REWRITE_CONTENT_TYPES)) $data = preg_replace(array_keys($REWRITE_PATTERNS), array_values($REWRITE_PATTERNS), $data, -1, $count);
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81 }
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82
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83 header('Content-Length: '.strlen($data));
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84 echo $data;
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85 ?>