auth: added login through vk iframe

backend/routes/auth/social/vk_iframe.js

@@ -0,0 +1,57 @@
+const { User } = require('../../../models');
+const axios = require('axios');
+const { generateUser } = require('../guest');
+const { STRINGS } = require('../../../config/strings');
+
+const fetchUserData = async (req, res) => {
+  const { query: { user_id, access_token } } = req;
+
+  const { data } = await axios.get(
+    'https://api.vk.com/method/users.get',
+    {
+      params: {
+        user_id,
+        fields: 'photo',
+        v: '5.67',
+        access_token,
+      }
+    }
+  ).catch(() => {
+    return res.send({ success: false, error: 'iframe auth failed' });
+  });
+
+  return data;
+};
+
+module.exports = async (req, res) => {
+  const { response } = await fetchUserData(req, res);
+
+  const {
+    first_name = '', last_name = '', photo = '', id = ''
+  } = response[0];
+
+  console.log('GOT IFRAME USER?', { first_name, last_name, photo, id });
+
+  const newUser = await generateUser(`vk:${id}`, 'vk');
+  const name = `${first_name} ${last_name}`;
+  const user = {
+    ...newUser, first_name, last_name, photo, name,
+  };
+
+  const auth = await User.findOne({ _id: user._id }).populate('routes');
+
+  if (auth) {
+    await auth.set({
+      first_name, last_name, name, photo
+    }).save();
+
+    res.send({ success: true, ...user });
+  } else {
+    const created = await User.create(user, (err, result) => {
+      return result.toObject();
+    });
+
+    res.send({ success: true, ...user, ...created });
+  }
+};
+