backend: initial log in dialog

backend/routes/auth.js

@@ -2,11 +2,13 @@ const express = require('express');
 const guest = require('./auth/guest');
 const list = require('./auth/list');
 const check = require('./auth/check');
+const vk = require('./auth/social/vk');
 
 const router = express.Router();
 
 router.get('/', check);
 router.get('/list', list);
 router.get('/guest', guest);
+router.get('/social/vk', vk);
 
 module.exports = router;

backend/routes/auth/check.js

@@ -11,6 +11,8 @@ module.exports = async (req, res) => {
   }
 
   const guest = await generateGuest();
-  return res.send({ success: false, ...guest, random_url });
+  return res.send({
+    success: false, error: 'user not found', error_code: 1231, ...guest, random_url
+  });
 };
 

backend/routes/auth/guest.js

@@ -11,9 +11,8 @@ const generateGuestToken = () => {
   });
 };
 
-const generateUser = id => {
+const generateUser = (id, role = 'guest') => {
   const token = `seq:${genRandomSequence(32)}`;
-  const role = 'guest';
 
   return { id, token, role };
 };
@@ -47,5 +46,7 @@ module.exports = async (req, res) => {
   res.send({ success: true, ...user });
 };
 
+module.exports.generateUser = generateUser;
 module.exports.generateGuest = generateGuest;
+module.exports.generateGuestToken = generateGuestToken;
 module.exports.generateRandomUrl = generateRandomUrl;

backend/routes/auth/social/vk.js

@@ -0,0 +1,58 @@
+const { User } = require('../../../models/User');
+const axios = require('axios');
+const { generateGuest, generateRandomUrl, generateUser } = require('../guest');
+//
+// const generateTokenUrl = (host, code) => (
+//   `https://oauth.vk.com/access_token?client_id=5987644&redirect_uri=http://${host}/` +
+//   `auth/social/vk&client_secret=Z71DsxoMF7PS9kayLuks&code=${code}`
+// );
+
+const fetchUserData = async (req) => {
+  const { query: { code } } = req;
+  const host = req.get('host');
+
+  const { data: { access_token, user_id } } = await axios.get(
+    'https://oauth.vk.com/access_token',
+    {
+      params: {
+        client_id: 5987644,
+        client_secret: 'Z71DsxoMF7PS9kayLuks',
+        code,
+        redirect_uri: `http://${host}/auth/social/vk`,
+      }
+    }
+  ).catch(() => ({ data: { } }));
+
+  const { data } = await axios.get(
+    'https://api.vk.com/method/users.get',
+    {
+      params: {
+        user_id,
+        fields: 'photo',
+        v: '5.67',
+        access_token,
+      }
+    }
+  ).catch(() => ({ data: { response: [] } }));
+
+  return data;
+};
+
+module.exports = async (req, res) => {
+  const { response } = await fetchUserData(req);
+
+  const {
+    first_name = '', last_name = '', photo = '', id = ''
+  } = response[0];
+
+  const newUser = await generateUser(`vk:${id}`, 'vk');
+  const user = {
+    ...newUser, first_name, last_name, photo
+  };
+
+  // todo: error handling
+  // console.log('USE', user);
+
+  res.send(user);
+};
+