feat(api): oAuth implementation

[mooy]

Add oAuth for other platform like twitter, github, google using passport-js

[Steve]

passport.use(new TwitterStrategy({
consumerKey: TWITTER_CONSUMER_KEY,
consumerSecret: TWITTER_CONSUMER_SECRET,
callbackURL: "http://127.0.0.1:3000/auth/twitter/callback"
},
function(token, tokenSecret, profile, cb) {
User.findOrCreate({ twitterId: profile.id }, function (err, user) {
return cb(err, user);
});
}
));

app.get('/auth/twitter',
passport.authenticate('twitter'));

app.get('/auth/twitter/callback',
passport.authenticate('twitter', { failureRedirect: '/login' }),
function(req, res) {
// Successful authentication, redirect home.
res.redirect('/');
});

[Steve]

var GoogleStrategy = require('passport-google-oauth20').Strategy;

passport.use(new GoogleStrategy({
clientID: GOOGLE_CLIENT_ID,
clientSecret: GOOGLE_CLIENT_SECRET,
callbackURL: "http://127.0.0.1:3000/auth/google/callback"
},
function(accessToken, refreshToken, profile, cb) {
User.findOrCreate({ googleId: profile.id }, function (err, user) {
return cb(err, user);
});
}
));

app.get('/auth/google',
passport.authenticate('google', { scope: ['profile'] }));

app.get('/auth/google/callback',
passport.authenticate('google', { failureRedirect: '/login' }),
function(req, res) {
// Successful authentication, redirect home.
res.redirect('/');
});

[Steve]

passport.use(new GitHubStrategy({
clientID: GITHUB_CLIENT_ID,
clientSecret: GITHUB_CLIENT_SECRET,
callbackURL: "http://127.0.0.1:3000/auth/github/callback"
},
function(accessToken, refreshToken, profile, done) {
User.findOrCreate({ githubId: profile.id }, function (err, user) {
return done(err, user);
});
}
));

app.get('/auth/github',
passport.authenticate('github', { scope: [ 'user:email' ] }));

app.get('/auth/github/callback',
passport.authenticate('github', { failureRedirect: '/login' }),
function(req, res) {
// Successful authentication, redirect home.
res.redirect('/');
});