[api] add draft for proxystream

lib/caronte/streams/forward.js

@@ -25,7 +25,7 @@ function ForwardStream() {
 
   Writable.call(this);  
 
-  this.once('pipe', function() { self.onPipe() });
+  this.once('pipe', function(pipe) { self.onPipe(pipe) });
   this.once('finish', function() { self.onFinish() });
 }
 

lib/caronte/streams/proxy.js

@@ -1,3 +1,40 @@
+var Duplex   = require('stream').Duplex,
+    common   = require('../common'),
+    http     = require('http'),
+    https    = require('https');
+
 function ProxyStream() {
+  var self = this;
+
+  Duplex.call(this);
+
+  this.once('pipe', function(pipe) { self.onPipe(pipe); }); 
+  this.once('finish', function() { self.onFinish(); }); 
+}
+
+ProxyStream.prototype.onPipe = function(request) {
+  var self = this;
+
+  this.proxyReq = (options.ssl ? https : http).request(
+    common.setupOutgoing(options.ssl || {}, options, request)
+  );
+
+  this.proxyReq.once('response', function(response) {
+    self.onResponse(response);
+  })
+  this.proxyReq.on('error', function() {}); // XXX TODO: add error handling
+}
+
+ProxyStream.prototype.onFinish = function() {
   
 }
+
+ProxyStream.prototype.onResponse = function() {
+
+}
+
+ProxyStream.prototype._read = function() {}
+
+ProxyStream.prototype._write = function() {}
+
+require('util').inherits(ForwardStream, Duplex);