/
passport.js
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/
passport.js
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var _ = require('lodash');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var TwitterStrategy = require('passport-twitter').Strategy;
var OAuthStrategy = require('passport-oauth').OAuthStrategy; // Tumblr
var OAuth2Strategy = require('passport-oauth').OAuth2Strategy; // Venmo, Foursquare
var GitHubStrategy = require('passport-github').Strategy;
var User = require('../models/User');
var secrets = require('./secrets');
var LinkedInStrategy = require('passport-linkedin-oauth2').Strategy;
passport.serializeUser(function(user, done) {
done(null, user.id);
});
passport.deserializeUser(function(id, done) {
User.findById(id, function(err, user) {
done(err, user);
});
});
// Sign in using Email and Password.
passport.use(new LocalStrategy({ usernameField: 'email' }, function(email, password, done) {
User.findOne({ email: email }, function(err, user) {
if (!user) return done(null, false, { message: 'Email ' + email + ' not found'});
user.comparePassword(password, function(err, isMatch) {
if (isMatch) {
return done(null, user);
} else {
return done(null, false, { message: 'Invalid email or password.' });
}
});
});
}));
/**
* OAuth Strategy Overview
*
* - User is already logged in.
* - Check if there is an existing account with a <provider> id.
* - If there is, return an error message. (Account merging not supported)
* - Else link new OAuth account with currently logged-in user.
* - User is not logged in.
* - Check if it's a returning user.
* - If returning user, sign in and we are done.
* - Else check if there is an existing account with user's email.
* - If there is, return an error message.
* - Else create a new account.
*/
// Sign in with Twitter.
passport.use(new TwitterStrategy(secrets.twitter, function(req, accessToken, tokenSecret, profile, done) {
if (req.user) {
User.findOne({ twitter: profile.id }, function(err, existingUser) {
if (existingUser) {
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.' });
done(err);
} else {
User.findById(req.user.id, function(err, user) {
user.twitter = profile.id;
user.tokens.push({ kind: 'twitter', accessToken: accessToken, tokenSecret: tokenSecret });
user.profile.name = user.profile.name || profile.displayName;
user.profile.location = user.profile.location || profile._json.location;
user.profile.picture = user.profile.picture || profile._json.profile_image_url_https;
user.profile.username = profile.username;
user.save(function(err) {
req.flash('info', { msg: 'Twitter account has been linked.' });
done(err, user);
});
});
}
});
} else {
User.findOne({ twitter: profile.id }, function(err, existingUser) {
if (existingUser) return done(null, existingUser);
var user = new User();
// Twitter will not provide an email address. Period.
// But a person’s twitter username is guaranteed to be unique
// so we can "fake" a twitter email address as follows:
user.email = profile.username + "@twitter.com";
user.twitter = profile.id;
user.tokens.push({ kind: 'twitter', accessToken: accessToken, tokenSecret: tokenSecret });
user.profile.name = profile.displayName;
user.profile.location = profile._json.location;
user.profile.picture = profile._json.profile_image_url_https;
user.profile.username = profile.username;
user.save(function(err) {
done(err, user);
});
});
}
}));
// Tumblr API setup.
passport.use('tumblr', new OAuthStrategy({
requestTokenURL: 'http://www.tumblr.com/oauth/request_token',
accessTokenURL: 'http://www.tumblr.com/oauth/access_token',
userAuthorizationURL: 'http://www.tumblr.com/oauth/authorize',
consumerKey: secrets.tumblr.consumerKey,
consumerSecret: secrets.tumblr.consumerSecret,
callbackURL: secrets.tumblr.callbackURL,
passReqToCallback: true
},
function(req, token, tokenSecret, profile, done) {
User.findById(req.user._id, function(err, user) {
user.tokens.push({ kind: 'tumblr', accessToken: token, tokenSecret: tokenSecret });
user.save(function(err) {
done(err, user);
});
});
}
));
// Foursquare API setup.
passport.use('foursquare', new OAuth2Strategy({
authorizationURL: 'https://foursquare.com/oauth2/authorize',
tokenURL: 'https://foursquare.com/oauth2/access_token',
clientID: secrets.foursquare.clientId,
clientSecret: secrets.foursquare.clientSecret,
callbackURL: secrets.foursquare.redirectUrl,
passReqToCallback: true
},
function(req, accessToken, refreshToken, profile, done) {
User.findById(req.user._id, function(err, user) {
user.tokens.push({ kind: 'foursquare', accessToken: accessToken });
user.save(function(err) {
done(err, user);
});
});
}
));
// Venmo API setup.
passport.use('venmo', new OAuth2Strategy({
authorizationURL: 'https://api.venmo.com/v1/oauth/authorize',
tokenURL: 'https://api.venmo.com/v1/oauth/access_token',
clientID: secrets.venmo.clientId,
clientSecret: secrets.venmo.clientSecret,
callbackURL: secrets.venmo.redirectUrl,
passReqToCallback: true
},
function(req, accessToken, refreshToken, profile, done) {
User.findById(req.user._id, function(err, user) {
user.tokens.push({ kind: 'venmo', accessToken: accessToken });
user.save(function(err) {
done(err, user);
});
});
}
));
// Login Required middleware.
exports.isAuthenticated = function(req, res, next) {
if (req.isAuthenticated()) return next();
res.redirect('/login');
};
// Authorization Required middleware.
exports.isAuthorized = function(req, res, next) {
var provider = req.path.split('/').slice(-1)[0];
if (_.find(req.user.tokens, { kind: provider })) {
next();
} else {
res.redirect('/auth/' + provider);
}
};
// Sign in with LinkedIn.
passport.use(new LinkedInStrategy(secrets.linkedin, function(req, accessToken, refreshToken, profile, done) {
if (req.user) {
User.findOne({ linkedin: profile.id }, function(err, existingUser) {
if (existingUser) {
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.' });
done(err);
} else {
User.findById(req.user.id, function(err, user) {
user.linkedin = profile.id;
user.tokens.push({ kind: 'linkedin', accessToken: accessToken });
user.profile.name = user.profile.name || profile.displayName;
user.profile.location = user.profile.location || profile._json.location.name;
user.profile.picture = user.profile.picture || profile._json.pictureUrl;
user.profile.website = user.profile.website || profile._json.publicProfileUrl;
user.save(function(err) {
req.flash('info', { msg: 'LinkedIn account has been linked.' });
done(err, user);
});
});
}
});
} else {
User.findOne({ linkedin: profile.id }, function(err, existingUser) {
if (existingUser) return done(null, existingUser);
User.findOne({ email: profile._json.emailAddress }, function(err, existingEmailUser) {
if (existingEmailUser) {
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.' });
done(err);
} else {
var user = new User();
user.linkedin = profile.id;
user.tokens.push({ kind: 'linkedin', accessToken: accessToken });
user.email = profile._json.emailAddress;
user.profile.name = profile.displayName;
user.profile.location = profile._json.location.name;
user.profile.picture = profile._json.pictureUrl;
user.profile.website = profile._json.publicProfileUrl;
user.save(function(err) {
done(err, user);
});
}
});
});
}
}));
// Sign in with GitHub.
passport.use(new GitHubStrategy(secrets.github, function(req, accessToken, refreshToken, profile, done) {
if (req.user) {
User.findOne({ github: profile.id }, function(err, existingUser) {
if (existingUser) {
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.' });
done(err);
} else {
User.findById(req.user.id, function(err, user) {
user.github = profile.id;
user.tokens.push({ kind: 'github', accessToken: accessToken });
user.profile.name = user.profile.name || profile.displayName;
user.profile.picture = user.profile.picture || profile._json.avatar_url;
user.profile.location = user.profile.location || profile._json.location;
user.profile.website = user.profile.website || profile._json.blog;
user.save(function(err) {
req.flash('info', { msg: 'GitHub account has been linked.' });
done(err, user);
});
});
}
});
} else {
User.findOne({ github: profile.id }, function(err, existingUser) {
if (existingUser) return done(null, existingUser);
User.findOne({ email: profile._json.email }, function(err, existingEmailUser) {
if (existingEmailUser) {
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.' });
done(err);
} else {
var user = new User();
user.email = profile._json.email;
user.github = profile.id;
user.tokens.push({ kind: 'github', accessToken: accessToken });
user.profile.name = profile.displayName;
user.profile.picture = profile._json.avatar_url;
user.profile.location = profile._json.location;
user.profile.website = profile._json.blog;
user.save(function(err) {
done(err, user);
});
}
});
});
}
}));