503 lines
18 KiB
JavaScript
503 lines
18 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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secrets = require('./secrets');
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// Login Required middleware.
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module.exports = {
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isAuthenticated: isAuthenticated,
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isAuthorized: isAuthorized,
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hasEmail: hasEmail
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};
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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.findOne({
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_id: id
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}, '-password', function(err, user) {
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done(err, user);
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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 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.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;
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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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// Twitter will not provide an email address. Period.
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// But a person’s twitter username is guaranteed to be unique
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// so we can "fake" a twitter email address as follows:
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user.email = profile.username + "@please_add_your_email_here.com";
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user.profile.username = profile.username;
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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;
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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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}
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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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}
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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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}
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});
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});
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}
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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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}
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});
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});
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}
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}));
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// Sign in using Email and Password.
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passport.use(
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new LocalStrategy(
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{ usernameField: 'email' }, function(email, password, done) {
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User.findOne({ email: email }, function(err, user) {
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if (err) { return done(err); }
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if (!user) {
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return done(null, false, { message: 'Email ' + email + ' not found'});
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}
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user.comparePassword(password, function(err, isMatch) {
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if (err) { return done(err); }
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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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// Sign in with Facebook.
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passport.use(
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new FacebookStrategy(
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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 (err) { return done(err); }
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if (existingUser) {
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req.flash('errors', {
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msg: [
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'There is already a Facebook account that belongs to you.',
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'Sign in with that account or delete it, then link it with',
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'your current account.'
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].join(' ')
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});
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done();
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} else {
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User.findById(req.user.id, function(err, user) {
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if (err) { return done(err); }
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user.facebook = profile.id;
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user.tokens.push({
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kind: 'facebook',
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accessToken: accessToken
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});
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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 =
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user.profile.picture ||
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'https://graph.facebook.com/' +
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profile.id +
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'/picture?type=large';
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user.save(function(err) {
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if (err) { return done(err); }
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req.flash(
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'info', { msg: 'Facebook account has been linked.' });
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done(null, 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 (err) { return done(err); }
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if (existingUser) { return done(null, existingUser); }
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User.findOne(
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{ email: profile._json.email }, function(err, existingEmailUser) {
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if (err) { return done(err); }
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var user = existingEmailUser || new User();
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user.email = user.email || profile._json.email;
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user.facebook = profile.id;
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user.tokens.push({
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kind: 'facebook',
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accessToken: accessToken
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});
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user.profile.name = user.profile.name || profile.displayName;
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user.profile.gender =
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user.profile.gender || profile._json.gender;
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user.profile.picture =
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user.profile.picture ||
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'https://graph.facebook.com/' +
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profile.id +
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'/picture?type=large';
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user.profile.location =
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user.profile.location ||
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(profile._json.location) ? profile._json.location.name : '';
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user.challengesComplete = user.challengesCompleted || [];
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user.save(function(err) {
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if (err) { return done(err); }
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done(null, user);
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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(
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new GitHubStrategy(
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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 (err) { return done(err); }
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if (existingUser) {
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req.flash('errors', {
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msg: [
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'There is already a GitHub account that belongs to you.',
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'Sign in with that account or delete it, then link it with',
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'your current account.'
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].join(' ')
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});
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done();
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} else {
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User.findById(req.user.id, function(err, user) {
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if (err) { return done(err); }
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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 =
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user.profile.picture || profile._json.avatar_url;
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user.profile.location =
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user.profile.location || profile._json.location;
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user.profile.website =
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user.profile.website || profile._json.blog;
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user.save(function(err) {
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if (err) { return done(err); }
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req.flash('info', { msg: 'GitHub account has been linked.' });
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done(null, 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 (err) { return done(err); }
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if (existingUser) { return done(null, existingUser); }
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User.findOne(
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{ email: profile._json.email }, function(err, existingEmailUser) {
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if (err) { return done(err); }
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var user = existingEmailUser || new User();
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user.email = user.email || profile._json.email;
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user.github = profile.id;
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user.tokens.push({
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kind: 'github',
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accessToken: accessToken
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});
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user.profile.name = user.profile.name || profile.displayName;
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user.profile.picture =
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user.profile.picture || profile._json.avatar_url;
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user.profile.location =
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user.profile.location || profile._json.location;
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user.profile.website =
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user.profile.website || profile._json.blog;
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user.save(function(err) {
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if (err) { return done(err); }
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done(null, user);
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});
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});
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});
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}
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}));
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function isAuthenticated(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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function hasEmail(req, res) {
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if (req.user) {
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if (req.user.email) {
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res.redirect('/');
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} else {
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req.flash('info', {
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msg: 'Please add your email address before starting our challenges.'
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});
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res.redirect('/account');
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}
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}
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}
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// Authorization Required middleware.
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function isAuthorized(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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}
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