A dummy npm server useful for publishing private packages

poor-mans-npm-registry.js

// A very simple npm server that you can `npm publish` to.
// Useful for publishing internal packages.
//
// Writes the published .tgz package to disk under tmp/
//
// In your own project's `package.json`, add this:
//
//    "publishConfig":{"registry":"http://localhost:9911"}
//
// Before you publish the first time you also need to
//
//    npm adduser
//
// (Just provide some dummy data)
//
// Now that you have a tmp/foo-1.2.3.tgz npm package, you can
// upload it (using scp for example) to a web server, say internalserver. 
// Then other projects can depend on your package like so:
// 
//    "dependencies": {
//      "foo": "http://internalserver/foo-1.2.3.tgz"
//    }
//
var http = require('http'),
    fs = require('fs'),
    path = require('path');

http.createServer(function (req, res) {
  var buf = null;
  req.on('data', function(data) {
    if (buf) {
      var b = new Buffer(buf.length + data.length);
      buf.copy(b, 0, 0, buf.length);
      data.copy(b, buf.length, 0, data.length);
      buf = b;
    } else {
      buf = data;
    }
  });

  req.on('end', function() {
    if(req.method == 'PUT' && req.headers['content-type'] == 'application/octet-stream') {
      var tgz = req.url.split('/').filter(function(name) { return name.match(/\.tgz$/); })[0];
      fs.writeFile(path.join('tmp', tgz), buf, function (err) {
        if (err) {
          res.writeHead(500, {'Content-Type': 'application/json'});
          res.end('{}');
        } else {
          res.writeHead(200, {'Content-Type': 'application/json'});
          res.end('{}');
        }
      });
    } else {
      res.writeHead(200, {'Content-Type': 'application/json'});
      res.end('{}');
    }
  });
}).listen(9911, "localhost");