diff --git a/software/auth/cardAuth.coffee b/software/auth/cardAuth.coffee
new file mode 100644
index 0000000..6738c98
--- /dev/null
+++ b/software/auth/cardAuth.coffee
@@ -0,0 +1,14 @@
+'use continuation'
+
+config = require "../config"
+User = require "../models/user"
+
+module.exports = (fingerPrint, callback) ->
+  try
+    User.getByIdentity(fingerPrint, obtain(user))
+    callback null, user.name
+  catch err
+    if err is 'no-such-user'
+      callback null, null
+    else
+      callback err
\ No newline at end of file
diff --git a/software/auth/cardAuth.js b/software/auth/cardAuth.js
deleted file mode 100644
index e6e7e19..0000000
--- a/software/auth/cardAuth.js
+++ /dev/null
@@ -1,32 +0,0 @@
-var config = require("../config")
-var request = require("request")
-
-module.exports = function(fingerPrint, callback){
-	request.post({
-		url: config.accounts9 + "/interface/getUserByIdentity",
-		json: {
-			interfaceSecret: config.interfaceSecret,
-			identity: fingerPrint
-		},
-		strictSSL: true,
-	}, function(error, response, body){
-		if(error){
-			return callback(error);
-		}
-		if(body.error === 'no-such-user'){
-			return callback(null, null);
-		}else if(body.error){
-			return callback(body.error, null);
-		}else{
-			if(body.user.groups.some(function(g){
-				return config.acceptGroup.some(function(h){
-					return h === g;
-				});
-			})){
-				return callback(null, body.user.name);
-			}else{
-				return callback(null, null);
-			}
-		}
-	});
-}
\ No newline at end of file
diff --git a/software/card9.js b/software/card9.js
index 453a471..c7917ae 100755
--- a/software/card9.js
+++ b/software/card9.js
@@ -1,4 +1,7 @@
-#!/usr/bin/env node
+#!/bin/sh
+
+//; exec continuation $0 -e -c
+
 var net = require('net');
 var config = require('./config');
 var logger = require('./logger');
@@ -7,6 +10,9 @@
 var cardAuth = require('./auth/cardAuth');
 var encoder = require('./utils/ProtocolBinarify');
 var local = require('./utils/LocalServer');
+
+var globalEvent = require('./globalEvent');
+
 var server = net.createServer(function(c) { //'connection' listener
   var client = c.remoteAddress + ':' + c.remotePort;
   logger({
@@ -71,6 +77,7 @@
   						reason: 'Client',
   						data: p.data.param,
   					});
+  					globalEvent.emit('cardScan', p.data.param);
 						cardAuth(p.data.param, function(err, pass){
 							if(err){
 								logger({
diff --git a/software/card9ctl b/software/card9ctl
deleted file mode 100755
index e057e33..0000000
--- a/software/card9ctl
+++ /dev/null
@@ -1,46 +0,0 @@
-#!/usr/bin/env node
-
-var defines = require('./utils/defines');
-var config = require('./config');
-var net = require('net');
-
-function usage(){
-	process.stderr.write(
-'一个控制 Card9 的工具                        \n\
-用法: card9ctl <command>                 \n\
-                                         \n\
-<command> 可以是：                        \n\
-    doorOpen          打开门禁            \n\
-    alarmOff          消除警报音          \n\
-', 'utf-8');
-}
-
-var command = -1;
-switch(process.argv[2]){
-	case 'doorOpen':
-		command = defines.commands.doDoorOpen;
-		break;
-	case 'alarmOff':
-		command = defines.commands.doAlarmOff;
-		break;
-	default:
-		usage();
-		process.stderr.once('drain', function(){
-			process.exit(1);
-		});
-		break;
-}
-if(command != -1){
-	var client = net.createConnection({path: config.sockFile}, function(){
-		client.write(new Buffer([command]));
-		client.once('drain', function(){
-			client.end();
-			console.log("成功发送命令。");
-		});
-	}).once('error', function(err){
-		console.error("在通过“" + config.sockFile + "”与守护进程建立连接时，发生了错误：");
-		console.error(err);
-		console.error("可能权限不足或守护进程未启动。");
-		process.exit(1);
-	});
-}
\ No newline at end of file
diff --git a/software/card9ctl.js b/software/card9ctl.js
new file mode 100755
index 0000000..3bac5b7
--- /dev/null
+++ b/software/card9ctl.js
@@ -0,0 +1,96 @@
+"use continuation"
+
+
+var defines = require('./utils/defines');
+var config = require('./config');
+var net = require('net');
+
+globalEvent = new (require('events').EventEmitter);
+
+function usage(){
+	process.stderr.write(
+'一个控制 Card9 的工具                        \n\
+用法: card9ctl <command>                 \n\
+                                         \n\
+<command> 可以是：                        \n\
+    doorOpen           打开门禁            \n\
+    alarmOff           消除警报音          \n\
+    addCard <userName> 为<userName> 添加卡片\n\
+', 'utf-8');
+}
+
+var command = -1;
+switch(process.argv[2]){
+	case 'doorOpen':
+		command = defines.commands.doDoorOpen;
+		break;
+	case 'alarmOff':
+		command = defines.commands.doAlarmOff;
+		break;
+	case 'addCard':
+	  if(process.argv[3]){
+	    command = -2;
+	    break;
+	  }
+	default:
+		usage();
+		process.stderr.once('drain', function(){
+			process.exit(1);
+		});
+		break;
+}
+
+var createSession = function(callback){
+  var client = net.createConnection({path: config.sockFile}, callback).once('error', function(err){
+		console.error("在通过“" + config.sockFile + "”与守护进程建立连接时，发生了错误：");
+		console.error(err);
+		console.error("可能权限不足或守护进程未启动。");
+		process.exit(1);
+	});
+	return client;
+}
+if(command == -2){
+  var username = process.argv[3];
+  var lenBuffer = new Buffer(4);
+  var readLenth = 0;
+  var identity, identityLength;
+  var client = createSession(function(){
+    try{
+      var User = require('./models/user');
+      var user;
+      User.getOrCreateByName(process.argv[3], obtain(user));
+      console.log("等待刷卡...");
+      globalEvent.on('card', cont(identity));
+      user.addIdentity(identity, obtain());
+      console.log("成功");
+      process.exit(0);
+    }catch(err){
+      console.error("错误：" + err);
+      process.exit(0);
+    }
+  }).on('data', function(chunk){
+    for(var i=0; i < chunk.length; i++){
+      if(readLenth < 4){
+        lenBuffer[readLenth++] = chunk[i];
+        if(readLenth == 4){
+          identityLength = lenBuffer.readUInt32LE(0);
+          identity = new Buffer(identityLength);
+        }
+      }else{
+        identity[ 3 - (--identityLength)] = chunk[i];
+        if(identityLength == 0){
+          globalEvent.emit('card', identity);
+          readLenth = 0;
+        }
+      }
+    }
+  });
+}else if(command != -1){
+	var client = createSession(function(){
+		client.write(new Buffer([command]));
+		client.once('drain', function(){
+			client.end();
+			console.log("成功发送命令。");
+		});
+	});
+}
\ No newline at end of file
diff --git a/software/config.example.js b/software/config.example.js
index b580027..6af069f 100644
--- a/software/config.example.js
+++ b/software/config.example.js
@@ -3,7 +3,7 @@
 	bindPort   : 57005,
 	logFile    : "./access.log",
 	sockFile   : "/tmp/card9.sock",
-	accounts9  : "https://accounts.net9.org",
+	dbAddr     : "mongodb://localhost/card9",
   setUid     : "", //should not be root; should have access to the source code
 	interfaceSecret : "Example",
 	acceptGroup: ["access-door"],
diff --git a/software/globalEvent.coffee b/software/globalEvent.coffee
new file mode 100644
index 0000000..d6509ab
--- /dev/null
+++ b/software/globalEvent.coffee
@@ -0,0 +1 @@
+module.exports = new (require('events').EventEmitter)
\ No newline at end of file
diff --git a/software/models/user.coffee b/software/models/user.coffee
new file mode 100644
index 0000000..fe5fc02
--- /dev/null
+++ b/software/models/user.coffee
@@ -0,0 +1,99 @@
+'use continuation'
+mongoose = require("../utils/db")
+
+UserSchema = new mongoose.Schema(
+  name:
+    type: String
+    index: true
+    unique: true
+  identity: [ Buffer ]
+)
+
+mongoose.model "User", UserSchema
+module.exports = User = mongoose.model "User"
+
+UserSchema.pre 'save', (next) ->
+  @identity ?= []
+
+  next()
+
+User.checkName = (name, callback) ->
+  User.findOne name: name, (err, user) ->
+    return callback(err) if err
+    if user
+      callback "username-occupied"
+    else
+      callback null
+
+User.checkIdentity = (identity, callback) ->
+  User.getByIdentity identity, (err, user) ->
+    if err is 'no-such-user'
+      callback null
+    else if err
+      callback err
+    else
+      callback 'identity-exist'
+
+User.getByName = (name, callback) ->
+  User.findOne name: name, (err, user) ->
+    return callback(err) if err
+    if not user
+      callback 'no-such-user'
+    else
+      callback null, user
+
+User.getByIdentity = (identity, callback) ->
+  User.findOne identity: $elemMatch: $eq: identity, (err, user) ->
+    return callback(err) if err
+    if not user
+      callback 'no-such-user'
+    else
+      callback null, user
+
+# Create a new user
+User.create = (user, callback) ->
+  try
+    # Normalize username and email address to lower case
+    user.name = user.name.toLowerCase()
+    usernameRegex = /^[a-z][a-z0-9_]{3,11}$/
+    if not usernameRegex.exec(user.name)
+      return callback("invalid-username")
+    user = new User(user)
+    callback null, user
+  catch err
+    callback err
+
+
+User::addIdentity = (identity, callback) ->
+  @identity ?= []
+  self = this
+  try
+    User.checkIdentity(identity, obtain())
+    self.identity.push identity
+    self.save callback
+  catch err
+    callback err
+
+User::removeIdentity = (identity, callback) ->
+  i = 0
+  while i < @identity.length
+    if @identity[i].equals identity
+      @identity = @identity.slice(0, i).concat(@identity.slice(i + 1))
+      @save callback
+      return
+    i++
+  callback "no-such-identity"
+
+User.getOrCreateByName = (name, callback) ->
+  try
+    User.getByName(name, obtain(user))
+    callback null, user
+  catch err
+    try
+      if err is 'no-such-user'
+        User.create({name: name}, obtain(user))
+        callback null, user
+      else
+        throw err
+    catch err2
+      callback err2
diff --git a/software/package.json b/software/package.json
index fe5b821..4cb0737 100644
--- a/software/package.json
+++ b/software/package.json
@@ -3,9 +3,12 @@
   "version": "0.0.0",
   "private": true,
   "scripts": {
-    "start": "sudo node ./card9.js"
+    "start": "sudo ./card9.js"
   },
   "dependencies": {
-    "request": "^2.53.0"
+    "mongoose": "^4.0.1",
+    "request": "^2.53.0",
+    "coffee-script": "",
+    "continuation": "~0.1.6",
   }
 }
diff --git a/software/utils/LocalServer.js b/software/utils/LocalServer.js
index 7048ca5..f116059 100644
--- a/software/utils/LocalServer.js
+++ b/software/utils/LocalServer.js
@@ -1,15 +1,33 @@
 var net = require('net');
 var defines = require('./defines');
 var fs = require('fs');
+var globalEvent = require('../globalEvent');
 var server = net.createServer(function(c){
 	c.on('data', function(chunk){
 		server.emit('command', chunk[0]);
 		c.end();
 	});
+	c.on('end', function(){
+	  globalEvent.removeListener('cardScan', listenToCardScan);
+	});
+	c.on('error', function(){
+	  globalEvent.removeListener('cardScan', listenToCardScan);
+	})
+	
+	var listenToCardScan = function(ident){
+	  var length = new Buffer(4);
+	  length.writeUInt32LE(ident.length, 0);
+	  c.write(length);
+	  c.write(ident);
+	}
+	
+	globalEvent.on('cardScan', listenToCardScan);
+	
 });
 server.create = function(sockFile, callback){
 	fs.unlink(sockFile, function(){
 		server.listen(sockFile, callback);
 	});
 };
+
 module.exports = server;
\ No newline at end of file
diff --git a/software/utils/db.js b/software/utils/db.js
new file mode 100644
index 0000000..e5fa9da
--- /dev/null
+++ b/software/utils/db.js
@@ -0,0 +1,8 @@
+var settings = require('../config');
+
+module.exports = mongoose = require('mongoose');
+mongoose.connected = false;
+mongoose.connection.on('open', function(){
+  mongoose.connected = true;
+});
+mongoose.connect(settings.dbAddr);