Facebook Provider: Fix expiresIn, add example, backwards compatibility

examples/facebook.js

@@ -0,0 +1,48 @@
+// Load modules
+
+var Hapi = require('hapi');
+var Bell = require('../');
+
+
+var server = new Hapi.Server();
+server.connection({ host: 'localhost', port: 3456});
+
+server.register(Bell, function (err) {
+
+    server.auth.strategy('facebook', 'bell', {
+        provider: 'facebook',
+        password: 'password',
+        isSecure: false,
+        // You'll need to go to https://developers.facebook.com/ and set up a
+        // Website application to get started
+        // Once you create your app, fill out Settings and set the App Domains
+        // Under Settings >> Advanced, set the Valid OAuth redirect URIs to include http://<yourdomain.com>/bell/door
+        // and enable Client OAuth Login
+        clientId: '',
+        clientSecret: '',
+        location: server.info.uri
+    });
+
+    server.route({
+        method: '*',
+        path: '/bell/door',
+        config: {
+            auth: {
+                strategy: 'facebook',
+                mode: 'try'
+            },
+            handler: function (request, reply) {
+
+                if (!request.auth.isAuthenticated) {
+                    return reply('Authentication failed due to: ' + request.auth.error.message);
+                }
+                reply('<pre>' + JSON.stringify(request.auth.credentials, null, 4) + '</pre>');
+            }
+        }
+    });
+
+    server.start(function (err) {
+
+        console.log('Server started at:', server.info.uri);
+    });
+});

lib/providers/facebook.js

@@ -14,14 +14,14 @@ exports = module.exports = function (options) {
         protocol: 'oauth2',
         useParamsAuth: true,
         auth: 'https://www.facebook.com/v2.3/dialog/oauth',
-        token: 'https://graph.facebook.com/oauth/access_token',
+        token: 'https://graph.facebook.com/v2.3/oauth/access_token',
         scope: ['email'],
         scopeSeparator: ',',
         profile: function (credentials, params, get, callback) {
 
             var query = {
                 appsecret_proof: Crypto.createHmac('sha256', this.clientSecret).update(credentials.token).digest('hex'),
-                fields: 'id,name,email,first_name,last_name,middle_name'
+                fields: 'id,name,email,first_name,last_name,middle_name,gender,link,locale,timezone,updated_time,verified'
             };
 
             get('https://graph.facebook.com/v2.3/me', query, function (profile) {