397 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			397 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
var _ = require('lodash'),
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    passport = require('passport'),
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    LocalStrategy = require('passport-local').Strategy,
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    FacebookStrategy = require('passport-facebook').Strategy,
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    TwitterStrategy = require('passport-twitter').Strategy,
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    GitHubStrategy = require('passport-github').Strategy,
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    GoogleStrategy = require('passport-google-oauth').OAuth2Strategy,
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    LinkedInStrategy = require('passport-linkedin-oauth2').Strategy,
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    OAuthStrategy = require('passport-oauth').OAuthStrategy,
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    OAuth2Strategy = require('passport-oauth').OAuth2Strategy,
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    User = require('../models/User'),
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    nodemailer = require('nodemailer'),
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    secrets = require('./secrets');
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passport.serializeUser(function(user, done) {
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  done(null, user.id);
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});
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passport.deserializeUser(function(id, done) {
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  User.findById(id, function(err, user) {
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    done(err, user);
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  });
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});
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// Sign in using Email and Password.
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passport.use(new LocalStrategy({ usernameField: 'email' }, function(email, password, done) {
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  User.findOne({ email: email }, function(err, user) {
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    if (!user) return done(null, false, { message: 'Email ' + email + ' not found'});
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    user.comparePassword(password, function(err, isMatch) {
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      if (isMatch) {
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        return done(null, user);
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      } else {
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        return done(null, false, { message: 'Invalid email or password.' });
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      }
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    });
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  });
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}));
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/**
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 * OAuth Strategy Overview
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 *
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 * - User is already logged in.
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 *   - Check if there is an existing account with a <provider> id.
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 *     - If there is, return an error message. (Account merging not supported)
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 *     - Else link new OAuth account with currently logged-in user.
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 * - User is not logged in.
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 *   - Check if it's a returning user.
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 *     - If returning user, sign in and we are done.
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 *     - Else check if there is an existing account with user's email.
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 *       - If there is, return an error message.
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 *       - Else create a new account.
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 */
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// Sign in with Facebook.
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passport.use(new FacebookStrategy(secrets.facebook, function(req, accessToken, refreshToken, profile, done) {
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  if (req.user) {
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    User.findOne({ facebook: profile.id }, function(err, existingUser) {
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      if (existingUser) {
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        req.flash('errors', { msg: 'There is already a Facebook account that belongs to you. Sign in with that account or delete it, then link it with your current account.' });
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        done(err);
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      } else {
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        User.findById(req.user.id, function(err, user) {
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          user.facebook = profile.id;
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          user.tokens.push({ kind: 'facebook', accessToken: accessToken });
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          user.profile.name = user.profile.name || profile.displayName;
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          user.profile.gender = user.profile.gender || profile._json.gender;
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          user.profile.picture = user.profile.picture || 'https://graph.facebook.com/' + profile.id + '/picture?type=large';
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          user.save(function(err) {
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            req.flash('info', { msg: 'Facebook account has been linked.' });
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            done(err, user);
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          });
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        });
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      }
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    });
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  } else {
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    User.findOne({ facebook: profile.id }, function(err, existingUser) {
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      if (existingUser) return done(null, existingUser);
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      User.findOne({ email: profile._json.email }, function(err, existingEmailUser) {
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        if (existingEmailUser) {
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          req.flash('errors', { msg: 'There is already an account using this email address. Sign in to that account and link it with Facebook manually from Account Settings.' });
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          done(err);
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        } else {
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          var user = new User();
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          user.email = profile._json.email;
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          user.facebook = profile.id;
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          user.tokens.push({ kind: 'facebook', accessToken: accessToken });
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          user.profile.name = profile.displayName;
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          user.profile.gender = profile._json.gender;
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          user.profile.picture = 'https://graph.facebook.com/' + profile.id + '/picture?type=large';
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          user.profile.location = (profile._json.location) ? profile._json.location.name : '';
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          user.save(function(err) {
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            done(err, user);
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          });
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          var transporter = nodemailer.createTransport({
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            service: 'Mandrill',
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            auth: {
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              user: secrets.mandrill.user,
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              pass: secrets.mandrill.password
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            }
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          });
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          var mailOptions = {
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            to: user.email,
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            from: 'Team@freecodecamp.com',
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            subject: 'Welcome to Free Code Camp!',
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            text: [
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              'Greetings from San Francisco!\n\n',
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              'Thank you for joining our community.\n',
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              'Feel free to email us at this address if you have any questions about Free Code Camp.\n',
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              "And if you have a moment, check out our blog: blog.freecodecamp.com.\n",
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              'Good luck with the challenges!\n\n',
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              '- the Volunteer Camp Counselor Team'
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            ].join('')
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          };
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          transporter.sendMail(mailOptions, function(err) {
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            if (err) { return err; }
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          });
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        }
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      });
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    });
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  }
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}));
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// Sign in with GitHub.
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passport.use(new GitHubStrategy(secrets.github, function(req, accessToken, refreshToken, profile, done) {
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  if (req.user) {
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    User.findOne({ github: profile.id }, function(err, existingUser) {
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      if (existingUser) {
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        req.flash('errors', { msg: 'There is already a GitHub account that belongs to you. Sign in with that account or delete it, then link it with your current account.' });
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        done(err);
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      } else {
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        User.findById(req.user.id, function(err, user) {
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          user.github = profile.id;
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          user.tokens.push({ kind: 'github', accessToken: accessToken });
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          user.profile.name = user.profile.name || profile.displayName;
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          user.profile.picture = user.profile.picture || profile._json.avatar_url;
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          user.profile.location = user.profile.location || profile._json.location;
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          user.profile.website = user.profile.website || profile._json.blog;
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          user.save(function(err) {
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            req.flash('info', { msg: 'GitHub account has been linked.' });
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            done(err, user);
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          });
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        });
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      }
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    });
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  } else {
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    User.findOne({ github: profile.id }, function(err, existingUser) {
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      if (existingUser) return done(null, existingUser);
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      User.findOne({ email: profile._json.email }, function(err, existingEmailUser) {
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        if (existingEmailUser) {
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          req.flash('errors', { msg: 'There is already an account using this email address. Sign in to that account and link it with GitHub manually from Account Settings.' });
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          done(err);
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        } else {
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          var user = new User();
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          user.email = profile._json.email;
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          user.github = profile.id;
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          user.tokens.push({ kind: 'github', accessToken: accessToken });
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          user.profile.name = profile.displayName;
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          user.profile.picture = profile._json.avatar_url;
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          user.profile.location = profile._json.location;
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          user.profile.website = profile._json.blog;
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          user.save(function(err) {
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            done(err, user);
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          });
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          var transporter = nodemailer.createTransport({
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            service: 'Mandrill',
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            auth: {
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              user: secrets.mandrill.user,
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              pass: secrets.mandrill.password
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            }
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          });
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          var mailOptions = {
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            to: user.email,
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            from: 'Team@freecodecamp.com',
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            subject: 'Welcome to Free Code Camp!',
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            text: [
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              'Greetings from San Francisco!\n\n',
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              'Thank you for joining our community.\n',
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              'Feel free to email us at this address if you have any questions about Free Code Camp.\n',
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              "And if you have a moment, check out our blog: blog.freecodecamp.com.\n",
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              'Good luck with the challenges!\n\n',
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              '- the Volunteer Camp Counselor Team'
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            ].join('')
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          };
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          transporter.sendMail(mailOptions, function(err) {
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            if (err) { return err; }
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          });
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        }
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      });
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    });
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  }
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}));
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// Sign in with Twitter.
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passport.use(new TwitterStrategy(secrets.twitter, function(req, accessToken, tokenSecret, profile, done) {
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  if (req.user) {
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    User.findOne({ twitter: profile.id }, function(err, existingUser) {
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      if (existingUser) {
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        req.flash('errors', { msg: 'There is already a Twitter account that belongs to you. Sign in with that account or delete it, then link it with your current account.' });
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        done(err);
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      } else {
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        User.findById(req.user.id, function(err, user) {
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          user.twitter = profile.id;
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          user.tokens.push({ kind: 'twitter', accessToken: accessToken, tokenSecret: tokenSecret });
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          user.profile.username = user.profile.username || profile.username.toLowerCase();
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          user.profile.name = user.profile.name || profile.displayName;
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          user.profile.location = user.profile.location || profile._json.location;
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          user.profile.picture = user.profile.picture || profile._json.profile_image_url_https.replace('_normal', '');
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          user.profile.twitterHandle = user.profile.twitterHandle || profile.username.toLowerCase();
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          user.save(function(err) {
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            req.flash('info', { msg: 'Twitter account has been linked.' });
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            done(err, user);
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          });
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        });
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      }
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    });
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  } else {
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    User.findOne({ twitter: profile.id }, function(err, existingUser) {
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      if (existingUser) return done(null, existingUser);
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      var user = new User();
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      user.profile.username = profile.username.toLowerCase();
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      user.twitter = profile.id;
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      user.tokens.push({ kind: 'twitter', accessToken: accessToken, tokenSecret: tokenSecret });
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      user.profile.name = profile.displayName;
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      user.profile.location = profile._json.location;
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      user.profile.picture = profile._json.profile_image_url_https.replace('_normal', '');
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      user.profile.twitterHandle = user.profile.twitterHandle || profile.username.toLowerCase();
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      user.save(function(err) {
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        done(err, user);
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      });
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    });
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  }
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}));
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// Sign in with Google.
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passport.use(new GoogleStrategy(secrets.google, function(req, accessToken, refreshToken, profile, done) {
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  if (req.user) {
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    User.findOne({ google: profile.id }, function(err, existingUser) {
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      if (existingUser) {
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        req.flash('errors', { msg: 'There is already a Google account that belongs to you. Sign in with that account or delete it, then link it with your current account.' });
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        done(err);
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      } else {
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        User.findById(req.user.id, function(err, user) {
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          user.google = profile.id;
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          user.tokens.push({ kind: 'google', accessToken: accessToken });
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          user.profile.name = user.profile.name || profile.displayName;
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          user.profile.gender = user.profile.gender || profile._json.gender;
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          user.profile.picture = user.profile.picture || profile._json.picture;
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          user.save(function(err) {
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            req.flash('info', { msg: 'Google account has been linked.' });
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            done(err, user);
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          });
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        });
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      }
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    });
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  } else {
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    User.findOne({ google: profile.id }, function(err, existingUser) {
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      if (existingUser) return done(null, existingUser);
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      User.findOne({ email: profile._json.email }, function(err, existingEmailUser) {
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        if (existingEmailUser) {
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          req.flash('errors', { msg: 'There is already an account using this email address. Sign in to that account and link it with Google manually from Account Settings.' });
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          done(err);
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        } else {
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          var user = new User();
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          user.email = profile._json.email;
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          user.google = profile.id;
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          user.tokens.push({ kind: 'google', accessToken: accessToken });
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          user.profile.name = profile.displayName;
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          user.profile.gender = profile._json.gender;
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          user.profile.picture = profile._json.picture;
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          user.save(function(err) {
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            done(err, user);
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          });
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          var transporter = nodemailer.createTransport({
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            service: 'Mandrill',
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            auth: {
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              user: secrets.mandrill.user,
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              pass: secrets.mandrill.password
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            }
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          });
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          var mailOptions = {
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            to: user.email,
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            from: 'Team@freecodecamp.com',
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            subject: 'Welcome to Free Code Camp!',
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            text: [
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              'Greetings from San Francisco!\n\n',
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              'Thank you for joining our community.\n',
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              'Feel free to email us at this address if you have any questions about Free Code Camp.\n',
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              "And if you have a moment, check out our blog: blog.freecodecamp.com.\n",
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              'Good luck with the challenges!\n\n',
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              '- the Volunteer Camp Counselor Team'
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            ].join('')
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          };
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          transporter.sendMail(mailOptions, function(err) {
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            if (err) { return err; }
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          });
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        }
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      });
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    });
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  }
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}));
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// Sign in with LinkedIn.
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passport.use(new LinkedInStrategy(secrets.linkedin, function(req, accessToken, refreshToken, profile, done) {
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  if (req.user) {
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    User.findOne({ linkedin: profile.id }, function(err, existingUser) {
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      if (existingUser) {
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        req.flash('errors', { msg: 'There is already a LinkedIn account that belongs to you. Sign in with that account or delete it, then link it with your current account.' });
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        done(err);
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      } else {
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        User.findById(req.user.id, function(err, user) {
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          user.linkedin = profile.id;
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          user.tokens.push({ kind: 'linkedin', accessToken: accessToken });
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          user.profile.name = user.profile.name || profile.displayName;
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          user.profile.location = user.profile.location || profile._json.location.name;
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          user.profile.picture = user.profile.picture || profile._json.pictureUrl;
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          user.profile.website = user.profile.website || profile._json.publicProfileUrl;
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          user.save(function(err) {
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            req.flash('info', { msg: 'LinkedIn account has been linked.' });
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            done(err, user);
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          });
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        });
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      }
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    });
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  } else {
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    User.findOne({ linkedin: profile.id }, function(err, existingUser) {
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      if (existingUser) return done(null, existingUser);
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      User.findOne({ email: profile._json.emailAddress }, function(err, existingEmailUser) {
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        if (existingEmailUser) {
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          req.flash('errors', { msg: 'There is already an account using this email address. Sign in to that account and link it with LinkedIn manually from Account Settings.' });
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          done(err);
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        } else {
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          var user = new User();
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          user.linkedin = profile.id;
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          user.tokens.push({ kind: 'linkedin', accessToken: accessToken });
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          user.email = profile._json.emailAddress;
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          user.profile.name = profile.displayName;
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          user.profile.location = profile._json.location.name;
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          user.profile.picture = profile._json.pictureUrl;
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          user.profile.website = profile._json.publicProfileUrl;
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          user.save(function(err) {
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            done(err, user);
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          });
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          var transporter = nodemailer.createTransport({
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            service: 'Mandrill',
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            auth: {
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              user: secrets.mandrill.user,
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              pass: secrets.mandrill.password
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            }
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          });
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          var mailOptions = {
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            to: user.email,
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            from: 'Team@freecodecamp.com',
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            subject: 'Welcome to Free Code Camp!',
 | 
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            text: [
 | 
						|
              'Greetings from San Francisco!\n\n',
 | 
						|
              'Thank you for joining our community.\n',
 | 
						|
              'Feel free to email us at this address if you have any questions about Free Code Camp.\n',
 | 
						|
              "And if you have a moment, check out our blog: blog.freecodecamp.com.\n",
 | 
						|
              'Good luck with the challenges!\n\n',
 | 
						|
              '- the Volunteer Camp Counselor Team'
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            ].join('')
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          };
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          transporter.sendMail(mailOptions, function(err) {
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            if (err) { return err; }
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          });
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        }
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      });
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    });
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  }
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}));
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// Login Required middleware.
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exports.isAuthenticated = function(req, res, next) {
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  if (req.isAuthenticated()) return next();
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  res.redirect('/login');
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};
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// Authorization Required middleware.
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exports.isAuthorized = function(req, res, next) {
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  var provider = req.path.split('/').slice(-1)[0];
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  if (_.find(req.user.tokens, { kind: provider })) {
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    next();
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  } else {
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    res.redirect('/auth/' + provider);
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  }
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}; |