creating registration and login form in node.js an

问题:

I am new to node.js and want to create a registration and login page for user.also there has to proper authorisation for the user.I want to store the user information inside mongodb database.How can i achieve this.can someone provide me the code to do so, so that i can get started with node.js and mongodb.Please help

回答1:

You can find a complete sample of what you're trying to do in the Nodepad application by Alex Young. The 2 important file you should take a look at are these 2:

https://github.com/alexyoung/nodepad/blob/master/models.js
https://github.com/alexyoung/nodepad/blob/master/app.js

A part of the model look like this:

  User = new Schema({
    'email': { type: String, validate: [validatePresenceOf, 'an email is required'], index: { unique: true } },
    'hashed_password': String,
    'salt': String
  });

  User.virtual('id')
    .get(function() {
      return this._id.toHexString();
    });

  User.virtual('password')
    .set(function(password) {
      this._password = password;
      this.salt = this.makeSalt();
      this.hashed_password = this.encryptPassword(password);
    })
    .get(function() { return this._password; });

  User.method('authenticate', function(plainText) {
    return this.encryptPassword(plainText) === this.hashed_password;
  });

  User.method('makeSalt', function() {
    return Math.round((new Date().valueOf() * Math.random())) + '';
  });

  User.method('encryptPassword', function(password) {
    return crypto.createHmac('sha1', this.salt).update(password).digest('hex');
  });

  User.pre('save', function(next) {
    if (!validatePresenceOf(this.password)) {
      next(new Error('Invalid password'));
    } else {
      next();
    }
  });

I think he also explains the code on the dailyjs site.

回答2:

I wrote a boilerplate project to do exactly this. It supports account creation, password retrieval via email, sessions, local cookies for remembering users when they return and secure password encryption via bcyrpt.

There's also a detailed explanation of the project's architecture on my blog.

回答3:

For an easy way to get started take a look at ExpressJS + MongooseJS + MongooseAuth.

In particular, that last plug-in provides a standard simple way to do logins using several different authentication methods (Password, Facebook, Twitter, etc.)