diff --git a/lib/http-proxy/passes/web-incoming.js b/lib/http-proxy/passes/web-incoming.js
index 4070eb316..2f6194fb5 100644
--- a/lib/http-proxy/passes/web-incoming.js
+++ b/lib/http-proxy/passes/web-incoming.js
@@ -2,6 +2,8 @@ var http = require('http'),
https = require('https'),
web_o = require('./web-outgoing'),
common = require('../common'),
+ PassThrough = require('stream').PassThrough,
+ isDuplex = require('isstream').isDuplex,
passes = exports;
web_o = Object.keys(web_o).map(function(pass) {
@@ -93,6 +95,15 @@ web_o = Object.keys(web_o).map(function(pass) {
function stream(req, res, options, _, server, clb) {
+ //
+ // Enable arbitary transform/duplex streams to be used on the byte streams
+ //
+ var before = isDuplex(options.before) ? options.before : new PassThrough();
+ var after = isDuplex(options.after) ? options.after : new PassThrough();
+
+ before.on('error', proxyError);
+ after.on('error', proxyError);
+
// And we begin!
server.emit('start', req, res, options.target)
if(options.forward) {
@@ -100,7 +111,7 @@ web_o = Object.keys(web_o).map(function(pass) {
var forwardReq = (options.forward.protocol === 'https:' ? https : http).request(
common.setupOutgoing(options.ssl || {}, options, req, 'forward')
);
- (options.buffer || req).pipe(forwardReq);
+ (options.buffer || req).pipe(before).pipe(forwardReq);
if(!options.target) { return res.end(); }
}
@@ -141,7 +152,7 @@ web_o = Object.keys(web_o).map(function(pass) {
}
}
- (options.buffer || req).pipe(proxyReq);
+ (options.buffer || req).pipe(before).pipe(proxyReq);
proxyReq.on('response', function(proxyRes) {
if(server) { server.emit('proxyRes', proxyRes, req, res); }
@@ -154,7 +165,7 @@ web_o = Object.keys(web_o).map(function(pass) {
server.emit('end', req, res, proxyRes);
});
- proxyRes.pipe(res);
+ proxyRes.pipe(after).pipe(res);
});
//proxyReq.end();
diff --git a/package.json b/package.json
index e7633d6f5..da992cfd3 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
"main": "index.js",
"dependencies": {
"eventemitter3": "1.x.x",
+ "isstream": "~0.1.2",
"requires-port": "0.x.x"
},
"devDependencies": {
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