From e9568c0a5c6ddd963c5fb944cdd3b32fa1479eb6 Mon Sep 17 00:00:00 2001
From: James Bunton <jamesbunton@fastmail.fm>
Date: Sat, 23 Jun 2007 22:15:21 +1000
Subject: [PATCH] Initial checkin

---
 path.php  |   7 +++
 proxy.php | 139 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 146 insertions(+)
 create mode 100644 path.php
 create mode 100644 proxy.php

diff --git a/path.php b/path.php
new file mode 100644
index 0000000..a17cd8b
--- /dev/null
+++ b/path.php
@@ -0,0 +1,7 @@
+<?php
+
+// Proxy to this URL
+$PROXY = "http://internalserver.com/somepath";
+include("proxy.php");
+
+?>
diff --git a/proxy.php b/proxy.php
new file mode 100644
index 0000000..fdbf912
--- /dev/null
+++ b/proxy.php
@@ -0,0 +1,139 @@
+<?php
+
+function debugAndDie() {
+	print "<pre>";
+	print_r($_GET);
+	print_r($_POST);
+	print_r($_COOKIE);
+	print_r($_SERVER);
+	print_r(apache_request_headers());
+	print "</pre>";
+	die();
+}
+
+function debug($msg) {
+	$fp = fopen("/tmp/debug.log", "a");
+	fwrite($fp, "===\n");
+	fwrite($fp, $msg);
+	fwrite($fp, "\n");
+	fclose($fp);
+}
+
+function getUrl($url) {
+	if(isset($_SERVER["PATH_INFO"])) {
+		$url .= $_SERVER["PATH_INFO"];
+	}
+	$url = parse_url($url);
+	if(!isset($url["port"])) {
+		$url["port"] = 80;
+		if($url["scheme"] == "https") {
+			$url["port"] = 443;
+		}
+	}
+	if(strlen($_SERVER["QUERY_STRING"]) > 0) {
+		$url["path"] = $url["path"] . "?" . $_SERVER["QUERY_STRING"];
+	}
+	return $url;
+}
+
+function generateRequest($rmeth, $host, $path) {
+	$crlf = "\r\n";
+
+	$req = $rmeth . " " . $path . " HTTP/1.0" . $crlf;
+
+	$headers = apache_request_headers();
+	if(isset($headers["Host"])) {
+		$req .= "Host: " . $headers["Host"] . $crlf;
+	}
+	if(isset($headers["Cookie"])) {
+		$req .= "Cookie: " . $headers["Cookie"] . $crlf;
+	}
+	if(isset($headers["Cookie2"])) {
+		$req .= "Cookie2: " . $headers["Cookie2"] . $crlf;
+	}
+	if(isset($headers["Referer"])) {
+		$req .= "Referer: " . $headers["Referer"] . $crlf;
+	}
+	if(isset($headers["Content-Length"])) {
+		$req .= "Content-Length: " . $headers["Content-Length"] . $crlf;
+	}
+	if(isset($headers["Content-Type"])) {
+		$val = $headers["Content-Type"];
+		$val = str_replace("PHPHACK", "", $val);
+		$req .= "Content-Type: " . $headers["Content-Type"] . $crlf;
+	}
+
+	$req .= $crlf;
+
+	return $req;
+}
+
+function doProxy($scheme, $rmeth, $host, $port, $path)
+{
+	$req = generateRequest($rmeth, $host, $path);
+
+	// Make the HTTP request
+	$fp = fsockopen(($scheme == 'https' ? 'ssl://' : '') . $host, $port);
+	if(!$fp) {
+		die("Could not connect to internal server!");
+	}
+	fwrite($fp, $req);
+	if($rmeth == "POST") {
+		$fpi = fopen("php://input", "rb");
+		while(!feof($fpi)) {
+			fwrite($fp, fread($fpi, 1024));
+		}
+		fclose($fpi);
+	}
+
+	$headers = array();
+	$mode = 0;
+	while(is_resource($fp) && $fp && !feof($fp)) {
+		// Parsing headers
+		if($mode == 0) {
+			// Grab a line
+			$line = fgets($fp);
+
+			if(strlen(trim($line)) != 0) {
+				array_push($headers, $line);
+			} else {
+				$mode = 1;
+				foreach($headers as $header) {
+					header($header);
+				}
+			}
+		}
+		// Body data!
+		else {
+			myPassThru($fp);
+		}
+	}
+
+	fclose($fp);
+}
+
+function myPassThru($fp) {
+	$data = "";
+	while(!feof($fp)) {
+		$data .= fread($fp, 1024);
+	}
+	$data = str_replace("enctype=\"multipart/form-data\"", "enctype=\"PHPHACKmultipart/form-data\"", $data);
+	print $data;
+}
+
+function main($basePath) {
+	///debugAndDie();
+
+	$u = getUrl($basePath);
+	$rmeth = $_SERVER["REQUEST_METHOD"];
+	doProxy($u["scheme"], $rmeth, $u["host"], $u["port"], $u["path"]);
+}
+
+// Run!
+if(!isset($PROXY)) {
+	die("No forwarding available!");
+}
+
+main($PROXY);
+
+?>
-- 
2.39.2