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-rw-r--r--doc/www.powerfulproxy.com/public_html/do_it.php164
1 files changed, 68 insertions, 96 deletions
diff --git a/doc/www.powerfulproxy.com/public_html/do_it.php b/doc/www.powerfulproxy.com/public_html/do_it.php
index f3e3b14..20ac8de 100644
--- a/doc/www.powerfulproxy.com/public_html/do_it.php
+++ b/doc/www.powerfulproxy.com/public_html/do_it.php
@@ -1,107 +1,79 @@
<?php
// Copyright Atiti, 2011
// Version 0.1-2
+// Heavily modified by Ivo <Ivo@UCIS.nl>
-// Where are we at?
+if (!isset($_SERVER['PATH_INFO'])) die('PATH_INFO is not set');
+$pall = explode("/", $_SERVER['PATH_INFO']);
+if (count($pall) <= 1) die('Unexpected path format');
+array_shift($pall);
+$proto = array_shift($pall);
+$host = array_shift($pall);
+$path = implode('/', $pall);
+array_pop($pall);
+$rp = implode('/', $pall);
+
+/* CONFIGURATION */
$SERVICEURL = "http://powerfulproxy.com/do_it.php/";
-// Do da request
-function get_url($url, $data) {
- if (!$url) {
- echo "Invalid use!";
- die;
- }
- $options = array(
- CURLOPT_RETURNTRANSFER => true, // return web page
- CURLOPT_HEADER => false, // don't return headers
- CURLOPT_FOLLOWLOCATION => true, // follow redirects
- CURLOPT_ENCODING => "", // handle all encodings
- CURLOPT_USERAGENT => "AnoNet proxy", // who am i
- CURLOPT_AUTOREFERER => true, // set referer on redirect
- CURLOPT_CONNECTTIMEOUT => 15, // timeout on connect
- CURLOPT_TIMEOUT => 28, // timeout on response
- CURLOPT_MAXREDIRS => 10, // stop after 10 redirects
- CURLOPT_FAILONERROR => true,
-// CURLOPT_PROXY => "http://b.polipo.srn.ano:8000/",
- );
- $ch = curl_init ($url);
- curl_setopt_array( $ch, $options );
- $fields_string = "";
- if (count($data)) {
- foreach($data as $key=>$value) { $fields_string .= $key.'='.$value.'&'; }
- rtrim($fields_string,'&');
- curl_setopt($ch, CURLOPT_POST, count($data));
- curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
- }
- $ret = curl_exec ($ch);
- if ($error = curl_error($ch))
- echo 'ERROR: ',$error;
- $info = curl_getinfo($ch);
- return array("data"=>$ret,"info"=>$info);
-}
-// Rewrite relative paths
-function rewriteRelative($html, $base) {
- $server = preg_replace('@^([^\:]*)://([^/*]*)(/|$).*@', '\1://\2/', $base);
- $html = preg_replace('@\<([^>]*) (href|src)="/([^"]*)"@i', '<\1 \2="' . $server . '\3"', $html);
- $html = preg_replace('@\<([^>]*) (href|src)="(([^\:"])*|([^"]*:[^/"].*))"@i', '<\1 \2="' . $base . '\3"', $html);
- return $html;
-}
-if (isset($_SERVER["PATH_INFO"]))
- $p = $_SERVER["PATH_INFO"];
-if (isset($_SERVER["QUERY_STRING"]))
- $q = $_SERVER["QUERY_STRING"];
-$postdata = $_POST;
-$pall = explode("/", $p);
-if (count($pall) <= 1) {
- echo "Wrong host format? or smtg.";
- die;
-}
-$proto = $pall[1];
-$host = $pall[2];
-unset($pall[0]);
-unset($pall[1]);
-unset($pall[2]);
-$path = implode("/", $pall);
-// Figure out relative paths
-$pi = pathinfo($path);
-if ($pi) {
- $rp = @$pi["dirname"];
-} else
- $rp = "";
-if (!$rp)
- $rp = $path;
-// Construct request url
-$geturl = $proto."://".$host."/".$path;
-if ($q)
- $geturl .= "?".$q; // Append query string
-$d = get_url($geturl, $postdata);
-$data = $d["data"];
-$ct = $d["info"]["content_type"];
-$ct_s = explode(";", $ct);
-$found = false;
-$match_ct = array("text/html", "text/xml", "text/plain");
-foreach($match_ct as $m) {
- if ($ct_s[0] == $m)
- $found = true;
+$REWRITE_CONTENT_TYPES = array('text/html', 'text/xml', 'text/plain');
+$REWRITE_PATTERNS = array(
+/* Rewrite complete http/https URLs, enable one of the tree, and no more! */
+// '@(https?)://(([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?)@i' => $SERVICEURL.'$1/$2',
+// '@(src|href|action)\s*=\s*(\'|")(https?)://([^\'"]*)\2@i' => '$1=$2'.$SERVICEURL.'$3/$4$2',
+ '@(<[^>]*)(src|href|action)\s*=\s*(\'|")(https?)://([^\'"]*)\3@i' => '$1$2=$3'.$SERVICEURL.'$4/$5$3',
+/* Rewrite URLs relative to site root, enable one of the tree, and no more! */
+// '@(src|href|action)\s*=\s*(\'|")/([^\'"]*)\2@i' => '$1=$2'.$SERVICEURL.$proto.'/'.$host.'/$3$2',
+ '@(<[^>]*)(src|href|action)\s*=\s*(\'|")/([^\'"]*)\3@i' => '$1$2=$3'.$SERVICEURL.$proto.'/'.$host.'/$4$3',
+);
+$CURL_OPTIONS = array(
+ CURLOPT_USERAGENT => "AnoNet proxy",
+ CURLOPT_AUTOREFERER => TRUE,
+ CURLOPT_CONNECTTIMEOUT => 15,
+ CURLOPT_TIMEOUT => 28,
+ CURLOPT_MAXREDIRS => 10,
+ CURLOPT_FAILONERROR => FALSE,
+ CURLOPT_HEADER => 1,
+ CURLOPT_FOLLOWLOCATION => FALSE,
+// CURLOPT_INTERFACE => '0.0.0.0',
+// CURLOPT_PROXY => "http://b.polipo.srn.ano:8000/",
+// CURLOPT_PROXYUSERPWD => 'username:password',
+);
+/* END OF CONFIGURATION */
+
+$url = $proto."://".$host."/".$path;
+if (isset($_SERVER['QUERY_STRING']) && strlen($_SERVER['QUERY_STRING'])) $url .= "?".$_SERVER['QUERY_STRING'];
+$ch = curl_init($url);
+curl_setopt_array($ch, $CURL_OPTIONS);
+curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
+//curl_setopt($ch, CURLOPT_HEADER, FALSE);
+if (count($_POST)) {
+ curl_setopt($ch, CURLOPT_POST, TRUE);
+ curl_setopt($ch, CURLOPT_POSTFIELDS, $_POST);
}
-if ($found) { // Only rewrite for proper content
- $ret = rewriteRelative($data, $proto."://".$host."/".$rp."/");
- $ret = preg_replace('@(https?://([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?)@', $SERVICEURL.str_replace("http://", "http/", "$1"), $ret);
- $ret = str_replace(".php/http://", ".php/http/", $ret);
- $ret = str_replace(".php/https://", ".php/https/", $ret);
+$response = curl_exec($ch);
+list($header, $data) = explode("\r\n\r\n", $response, 2);
+if ($error = curl_error($ch)) die('CURL ERROR: '.$error);
+$info = curl_getinfo($ch);
- $ret = str_replace("../", "", $ret);
- $items = Array("/src='\/(.*)'/", "/src=\"\/(.*)\"/", "/href='\/(.*)'/", "/href=\"\/(.*)\"/");
- $ret = preg_replace($items, "src='".$SERVICEURL.$proto."/".$host."/$1'", $ret);
- $ret = preg_replace("/action=\"\/\"/i", "action=\"".$SERVICEURL.$proto."/".$host."/\"", $ret);
+header('Status: '.$info['http_code']);
+header('Content-Type: '.$info['content_type']);
-} else
- $ret = "";
-// Output da shit
-header("Content-Type: ".$ct);
-if (strlen($ret) == 0)
- echo $data;
-else
- echo $ret;
+$redirurl = "";
+if ($info['http_code'] === 301) {
+ $headers = explode("\r\n", $header);
+ foreach($headers as $h) {
+ $cur_header = explode(": ", $h);
+ if ($cur_header[0] == "Location") {
+ $redirurl = preg_replace('@(https?://([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?)@', $SERVICEURL.str_replace("http://", "http/", "$1"), $cur_header[1]);
+ $redirurl = str_replace(".php/http://", ".php/http/", $redirurl);
+ header('Location: '.$redirurl);
+ }
+ }
+} else {
+ if (in_array(strtok($info['content_type'], ';'), $REWRITE_CONTENT_TYPES)) $data = preg_replace(array_keys($REWRITE_PATTERNS), array_values($REWRITE_PATTERNS), $data, -1, $count);
+}
+header('Content-Length: '.strlen($data));
+echo $data;
?>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 06:38:06 +0000