GH-13 server.use()

docs/server.md

@@ -140,7 +140,14 @@ functions in the form `f(req, res, next)` or arrays of functions of the same
 signature (ldapjs will unroll them).
 
 Unlike HTTP, LDAP operations do not have a heterogeneous wire format, so each
-operation requires specific methods/fields on the request/response objects.
+operation requires specific methods/fields on the request/response
+objects.  However, there is a `.use()` method availabe, similar to
+that on express/connect, allowing you to chain up "middleware":
+
+    server.use(function(req, res, next) {
+      console.log('hello world');
+      return next();
+    });
 
 ## Common Request Elements
 

lib/server.js

@@ -271,6 +271,7 @@ function Server(options) {
 
   EventEmitter.call(this, options);
 
+  this._chain = [];
   this.log4js = options.log4js;
   this.log = this.log4js.getLogger('Server');
 
@@ -617,6 +618,16 @@ Server.prototype.unbind = function() {
 };
 
 
+Server.prototype.use = function use() {
+  var args = Array.prototype.slice.call(arguments);
+  var chain = mergeFunctionArgs(args, 0, args.length);
+  var self = this;
+  chain.forEach(function(c) {
+    self._chain.push(c);
+  });
+};
+
+
 Server.prototype.after = function() {
   if (!this._postChain)
     this._postChain = [];
@@ -792,7 +803,12 @@ Server.prototype._mount = function(op, name, argv, notDN) {
     index = 1;
   }
   var route = this._getRoute(notDN ? name : dn.parse(name), backend);
-  route['0x' + op.toString(16)] = mergeFunctionArgs(argv.slice(index));
+
+  var chain = this._chain.slice();
+  argv.slice(index).forEach(function(a) {
+    chain.push(a);
+  });
+  route['0x' + op.toString(16)] = mergeFunctionArgs(chain);
 
   return this;
 };