Add Google OAuth 2.0 Passport strategy.

keys.json.sample

@@ -19,5 +19,9 @@
       , "clientSecret": ""
       , "callbackURL": "http://local.host:3000/auth/github/callback"
     }
-
+  , "google": {
+        "clientID": ""
+      , "clientSecret": ""
+      , "callbackURL": "http://local.host:3000/auth/google/callback"
+    }
 }

lib/auth/index.js

@@ -71,13 +71,15 @@ const setPicture = (user, profile) => {
  */
 
 const generateStrategy = provider => {
-  // Geneate routes
+  // Generate routes
+  const options = provider === 'google' ? { scope: ['profile'] } : {};
   app.get(`/auth/${provider}`, saveRedirect, passport.authenticate(provider));
   app.get(`/auth/${provider}/callback`, passport.authenticate(provider, { failureRedirect: '/' }), redirectSubdomain);
 
   // Require provider own module
   // TODO: Figure out how to use ES2015 syntax instead of requires
-  const Strategy = require(`passport-${provider}`).Strategy;
+  const strategyName = provider === 'google' ? 'passport-google-oauth20' : `passport-${provider}`;
+  const Strategy = require(strategyName).Strategy;
 
   passport.use(new Strategy(keys[provider], async (token, tokenSecret, profile, done) => {
     let user = await User.findOne({provider_id: profile.id, provider: provider}).exec();

package.json

@@ -31,6 +31,7 @@
     "passport": "0.2.2",
     "passport-facebook": "2.0.0",
     "passport-github": "0.1.5",
+    "passport-google-oauth20": "^1.0.0",
     "passport-http": "^0.3.0",
     "passport-meetup": "0.1.2",
     "passport-twitter": "1.0.3",