Add include option to Login

spec/ParseUser.spec.js

@@ -101,6 +101,36 @@ describe('Parse.User testing', () => {
     });
   });
 
+  it('user login with include', (done) => {
+    const object = new TestObject();
+    object.set('foo', 'bar');
+    const user = new Parse.User();
+    user.setUsername('asdf');
+    user.setPassword('zxcv');
+    user.set('foobaz', object);
+    user.set('foobar', object);
+    user.signUp().then(() => {
+      return rp.post({
+        url: 'http://localhost:8378/1/login',
+        headers: {
+          'X-Parse-Application-Id': Parse.applicationId,
+          'X-Parse-REST-API-Key': 'rest',
+        },
+        json: {
+          _method: 'GET',
+          username: 'asdf',
+          password: 'zxcv',
+          include: 'foobaz,foobar',
+        }
+      }).then((user) => {
+        equal(user.username, 'asdf');
+        equal(user.foobaz.foo, 'bar');
+        equal(user.foobar.foo, 'bar');
+        done();
+      });
+    });
+  });
+
   it('user login with non-string username with REST API', (done) => {
     Parse.User.signUp('asdf', 'zxcv', null, {
       success: () => {

src/Routers/UsersRouter.js

@@ -7,6 +7,7 @@ import ClassesRouter from './ClassesRouter';
 import rest from '../rest';
 import Auth from '../Auth';
 import passwordCrypto from '../password';
+import RestQuery from '../RestQuery';
 
 export class UsersRouter extends ClassesRouter {
 
@@ -201,8 +202,26 @@ export class UsersRouter extends ClassesRouter {
         req.config.filesController.expandFilesInObject(req.config, user);
 
         return createSession();
-      })
-      .then(() => {
+      }).then(() => {
+        if (!req.body.include || typeof req.body.include !== 'string') {
+          return Promise.resolve();
+        }
+        const fields = ['user'];
+        const includes = req.body.include.split(',');
+        for (const field of includes) {
+          fields.push(`user.${field}`);
+        }
+        const query = new RestQuery(req.config, Auth.master(req.config), '_Session',
+          { sessionToken: user.sessionToken },
+          { include: fields.join() }, req.info.clientSDK);
+        return query.execute().then((resp) => {
+          const includedUser = resp.results[0].user;
+          includedUser.sessionToken = user.sessionToken;
+          UsersRouter.removeHiddenProperties(includedUser);
+          user = includedUser;
+          return user;
+        });
+      }).then(() => {
         return { response: user };
       });
   }