From: James Bunton <jamesbunton@fastmail.fm>
Date: Fri, 26 Oct 2007 09:51:06 +0000 (+1000)
Subject: Ruby proxy
X-Git-Url: https://code.delx.au/cgiproxy/commitdiff_plain/0677bf739e158e9256a73fe911e04713b5aa2f40

Ruby proxy
---

diff --git a/path.php b/php/path.php
similarity index 100%
rename from path.php
rename to php/path.php
diff --git a/proxy.php b/php/proxy.php
similarity index 100%
rename from proxy.php
rename to php/proxy.php
diff --git a/ruby/path.cgi b/ruby/path.cgi
new file mode 100755
index 0000000..108d1f5
--- /dev/null
+++ b/ruby/path.cgi
@@ -0,0 +1,5 @@
+#!/usr/bin/env ruby
+
+require 'proxy.rb'
+proxyTo "http://internalserver/somepath"
+
diff --git a/ruby/proxy.rb b/ruby/proxy.rb
new file mode 100755
index 0000000..f03091d
--- /dev/null
+++ b/ruby/proxy.rb
@@ -0,0 +1,94 @@
+#!/usr/bin/env ruby
+
+require 'net/http'
+require 'uri'
+
+class NilClass
+	# Make it easier to check for empty string or nil
+	def empty?; true; end
+	def to_s; ""; end
+end
+
+
+def createUrl(url)
+	if !ENV["PATH_INFO"].empty?
+		url += ENV["PATH_INFO"]
+	end
+	if !ENV["QUERY_STRING"].empty?
+		url += "?" + ENV["QUERY_STRING"]
+	end
+	url = URI.parse(url);
+	if url.scheme != "http"
+		raise RuntimeError, "Unsupported scheme: #{url.scheme}"
+	end
+	return url
+end
+
+def createRequest(method, url)
+	path = url.path
+	if !url.query.empty?
+		path += "?" + url.query
+	end
+	if method == "GET"
+		req = Net::HTTP::Get.new(path)
+	elsif method == "POST"
+		req = Net::HTTP::Post.new(path)
+		req.body = $stdin.read()
+	else
+		raise RuntimeError, "No support for method: #{method}"
+	end
+	return req
+end
+
+def insertHeaders(req)
+	req["X-Forwarded-For"] = ENV["REMOTE_ADDR"]
+	req["Host"] = ENV["HTTP_HOST"]
+	req["Cookie"] = ENV["HTTP_COOKIE"]
+	req["Referer"] = ENV["HTTP_REFERER"]
+	req["Content-Length"] = ENV["CONTENT_LENGTH"]
+	req["Content-Type"] = ENV["CONTENT_TYPE"]
+	req["User-Agent"] = ENV["HTTP_USER_AGENT"]
+	req["Cache-Control"] = ENV["HTTP_CACHE_CONTROL"]
+	req["Authorization"] = ENV["HTTP_AUTHORIZATION"]
+	req["Accept"] = ENV["HTTP_ACCEPT"]
+	req["Accept-Charset"] = ENV["HTTP_ACCEPT_CHARSET"]
+	req["Accept-Encoding"] = ENV["HTTP_ACCEPT_ENCODING"]
+	req["Accept-Language"] = ENV["HTTP_ACCEPT_LANGUAGE"]
+end
+
+def doRequest(req, host, port)
+	# Make the request
+	res = Net::HTTP.start(host, port) do |http|
+		http.request(req)
+	end
+
+	# Tweak the headers a little
+	res.delete("transfer-encoding")
+	res.delete("transfer-length")
+	res["connection"] = "close"
+
+	return res
+end
+
+def printResult(res)
+	res.each_capitalized do |key, value|
+		print "#{key}: #{value}\r\n"
+	end
+	print "\r\n"
+	print res.body
+end
+
+def debug(msg)
+	File.open("/tmp/debuglog.txt", "a") { |f|
+		f << Time.new.to_s + " " + msg + "\n"
+	}
+end
+
+def proxyTo(basePath)
+	url = createUrl(basePath)
+	req = createRequest(ENV["REQUEST_METHOD"], url)
+	insertHeaders(req)
+	res = doRequest(req, url.host, url.port)
+	printResult(res)
+end
+