Add support of google signin

Author: jackycute

README.md

@@ -121,7 +121,7 @@ Third-party integration api key settings
 ---
 | service | file path | description |
 | ------- | --------- | ----------- |
-| facebook, twitter, github, gitlab, dropbox | `config.json` | for signin |
+| facebook, twitter, github, gitlab, dropbox, google | `config.json` | for signin |
 | imgur | `config.json` | for image upload |
 | google drive, dropbox | `public/js/common.js` | for export and import |
 

app.js

@@ -317,6 +317,19 @@ if (config.dropbox) {
             res.redirect(config.serverurl);
         });
 }
+//google auth
+if (config.google) {
+    app.get('/auth/google',
+        passport.authenticate('google', { scope: ['profile'] }));
+    //google auth callback
+    app.get('/auth/google/callback',
+        passport.authenticate('google', {
+            failureRedirect: config.serverurl
+        }),
+        function (req, res) {
+            res.redirect(config.serverurl);
+        });
+}
 //logout
 app.get('/logout', function (req, res) {
     if (config.debug && req.isAuthenticated())

config.json

@@ -41,6 +41,10 @@
             "clientID": "change this",
             "clientSecret": "change this"
         },
+        "google": {
+            "clientID": "change this",
+            "clientSecret": "change this"
+        },
         "imgur": {
             "clientID": "change this"
         }

lib/auth.js

@@ -6,6 +6,7 @@ var TwitterStrategy = require('passport-twitter').Strategy;
 var GithubStrategy = require('passport-github').Strategy;
 var GitlabStrategy = require('passport-gitlab2').Strategy;
 var DropboxStrategy = require('passport-dropbox-oauth2').Strategy;
+var GoogleStrategy = require('passport-google-oauth20').Strategy;
 
 //core
 var config = require('./config.js');
@@ -100,4 +101,12 @@ if (config.dropbox) {
         clientSecret: config.dropbox.clientSecret,
         callbackURL: config.serverurl + '/auth/dropbox/callback'
     }, callback));
+}
+//google
+if (config.google) {
+    passport.use(new GoogleStrategy({
+        clientID: config.google.clientID,
+        clientSecret: config.google.clientSecret,
+        callbackURL: config.serverurl + '/auth/google/callback'
+    }, callback));
 }

lib/config.js

@@ -61,6 +61,7 @@ var twitter = config.twitter || false;
 var github = config.github || false;
 var gitlab = config.gitlab || false;
 var dropbox = config.dropbox || false;
+var google = config.google || false;
 var imgur = config.imgur || false;
 
 function getserverurl() {
@@ -113,5 +114,6 @@ module.exports = {
     github: github,
     gitlab: gitlab,
     dropbox: dropbox,
+    google: google,
     imgur: imgur
 };

lib/models/user.js

@@ -76,6 +76,9 @@ module.exports = function (sequelize, DataTypes) {
                         //no image api provided, use gravatar
                         photo = 'https://www.gravatar.com/avatar/' + md5(profile.emails[0].value);
                         break;
+                    case "google":
+                        photo = profile.photos[0].value.replace(/(\?sz=)\d*$/i, '$196');
+                        break;
                 }
                 return photo;
             }

lib/response.js

@@ -96,7 +96,8 @@ function showIndex(req, res, next) {
         twitter: config.twitter,
         github: config.github,
         gitlab: config.gitlab,
-        dropbox: config.dropbox
+        dropbox: config.dropbox,
+        google: config.google
     });
     res.write(content);
     res.end();
@@ -127,7 +128,8 @@ function responseHackMD(res, note) {
         twitter: config.twitter,
         github: config.github,
         gitlab: config.gitlab,
-        dropbox: config.dropbox
+        dropbox: config.dropbox,
+        google: config.google
     });
     var buf = html;
     res.writeHead(200, {

package.json

@@ -40,6 +40,7 @@
     "passport-facebook": "^2.1.0",
     "passport-github": "^1.1.0",
     "passport-gitlab2": "^2.2.0",
+    "passport-google-oauth20": "^1.0.0",
     "passport-twitter": "^1.0.4",
     "passport.socketio": "^3.6.1",
     "pg": "^4.5.3",

public/views/index.ejs

@@ -58,7 +58,7 @@
                         <p class="lead">
                             Realtime collaborative markdown notes on all platforms.
                         </p>
-                        <% if(facebook || twitter || github || gitlab || dropbox) { %>
+                        <% if(facebook || twitter || github || gitlab || dropbox || google) { %>
                         <a type="button" class="btn btn-lg btn-success ui-signin" data-toggle="modal" data-target=".signin-modal" style="display:none;">Sign In</a>
                         <div class="ui-or" style="display:none;">Or</div>
                         <% }%>
@@ -72,7 +72,7 @@
                 </div>
 
                 <div id="history" class="section" style="display:none;">
-                    <% if(facebook || twitter || github || gitlab || dropbox) { %>
+                    <% if(facebook || twitter || github || gitlab || dropbox || google) { %>
                     <div class="ui-signin">
                         <h4>
                             <a type="button" class="btn btn-success" data-toggle="modal" data-target=".signin-modal">Sign In</a> to get own history!

public/views/signin-modal.ejs

@@ -23,14 +23,19 @@
                     <i class="fa fa-github"></i> Sign in via GitHub
                 </a>
                 <% } %>
+                <% if(gitlab) { %>
+                <a href="<%- url %>/auth/gitlab" class="btn btn-lg btn-block btn-social btn-soundcloud">
+                    <i class="fa fa-gitlab"></i> Sign in via GitLab
+                </a>
+                <% } %>
                 <% if(dropbox) { %>
                 <a href="<%- url %>/auth/dropbox" class="btn btn-lg btn-block btn-social btn-dropbox">
                     <i class="fa fa-dropbox"></i> Sign in via Dropbox
                 </a>
                 <% } %>
-                <% if(gitlab) { %>
-                <a href="<%- url %>/auth/gitlab" class="btn btn-lg btn-block btn-social btn-soundcloud">
-                    <i class="fa fa-gitlab"></i> Sign in via GitLab
+                <% if(google) { %>
+                <a href="<%- url %>/auth/google" class="btn btn-lg btn-block btn-social btn-google">
+                    <i class="fa fa-google"></i> Sign in via Google
                 </a>
                 <% } %>
             </div>