From 68434af856304308b793109f2bb157950a58ca0c Mon Sep 17 00:00:00 2001
From: Michael Fediuchenko <mixei112299@gmail.com>
Date: Sat, 3 Apr 2021 21:19:32 +0300
Subject: [PATCH] Fediuchenko. Add student signup, Add teacher signup

---
 server/src/index.js       |   4 +-
 server/src/routes/auth.js | 103 +++++++++++++++++++++++++++++++++++---
 2 files changed, 97 insertions(+), 10 deletions(-)

diff --git a/server/src/index.js b/server/src/index.js
index bd9485f..0cab49d 100644
--- a/server/src/index.js
+++ b/server/src/index.js
@@ -1,12 +1,12 @@
 import express from 'express'
 // import './models';
-// import { auth } from './routes';
+import { auth } from './routes';
 
 const app = express();
 app.use(express.urlencoded());
 
 app.use(express.json());
-// app.use('/api/v1/', auth);
+app.use('/api/v1/', auth);
 const appPort = 3000;
 app.listen(
     appPort,
diff --git a/server/src/routes/auth.js b/server/src/routes/auth.js
index caa4948..6f43f88 100644
--- a/server/src/routes/auth.js
+++ b/server/src/routes/auth.js
@@ -1,15 +1,102 @@
-import express from 'express';
-import FabricCAServices from 'fabric-ca-client';
-import fs from 'fs';
+import * as fs from 'fs';
 import path from 'path';
 import yaml from 'js-yaml';
 
+import express from 'express';
+import FabricCAService from 'fabric-ca-client';
+import {
+    Gateway,
+    InMemoryWallet,
+    X509WalletMixin
+} from 'fabric-network';
+
+const FABRIC_CA_URL = `http://0.0.0.0:7054`;
+const ADMIN_LOGIN = 'admin'
+const ADMIN_PASSWORD = 'password'
+
 const router = express.Router();
-const studentRegistration = async (req, res) => {
-  let caInfo = yaml.safeLoad(fs.readFileSync('../gateway/fabric-ca-client-config.yaml', 'utf8'));
-  const caTLSCACerts = caInfo.tlsCACerts.pem;
-  const ca = new FabricCAServices(caInfo.url, { trustedRoots: caTLSCACerts, verify: false }, caInfo.caName);
+
+const ca = new FabricCAService(FABRIC_CA_URL);
+
+const createAdminGateway = async () => {
+    const adminData = await ca.enroll({enrollmentID: ADMIN_LOGIN, enrollmentSecret: ADMIN_PASSWORD});
+    const admin_id = {
+        label: 'client',
+        certificate: adminData.certificate,
+        privateKey: adminData.key.toBytes(),
+        mspId: 'NAUKMA',
+    };
+    const wallet = new InMemoryWallet();
+    const mixin = X509WalletMixin.createIdentity(admin_id.mspId, admin_id.certificate, admin_id.privateKey);
+    await wallet.import(admin_id.label, mixin);
+    const gateway = new Gateway();
+    const connectionProfile = yaml.safeLoad(
+        fs.readFileSync(path.resolve(__dirname, '../gateway/networkConnection.yaml'), 'utf8'),
+    );
+    await gateway.connect(connectionProfile, {
+        identity: admin_id.label,
+        wallet,
+        discovery: {enabled: false, asLocalhost: true},
+    });
+
+    return gateway;
+}
+
+const registrationHandler = async (res, login, password, affiliation) => {
+    if (!login || !password) {
+        res.status(400).send({error: 'Must provide login and password'})
+        return
+    }
+
+    let gateway;
+    try {
+        gateway = await createAdminGateway();
+    } catch (e) {
+        res.status(400).send({error: 'Could not connect to gateway'})
+        return
+    }
+    const admin = await gateway.getCurrentIdentity();
+
+    const secret = await ca.register({
+        enrollmentID: login,
+        enrollmentSecret: password,
+        role: 'peer',
+        affiliation: affiliation,
+        maxEnrollments: -1,
+    }, admin);
+
+    let userData;
+    try {
+        userData = await ca.enroll({
+            enrollmentID: login,
+            enrollmentSecret: secret,
+        });
+    } catch (e) {
+        res.status(400).send({error: 'Invalid credentials, possibly the login is already taken'})
+        gateway.disconnect();
+        return
+    }
+
+    gateway.disconnect();
+    res.status(201).json({
+        login,
+        certificate: userData.certificate,
+        privateKey: userData.key.toBytes(),
+    });
 };
-router.post('/student', studentRegistration);
+
+router.post('/student', (req, res) => registrationHandler(
+    res,
+    req.body.login,
+    req.body.password,
+    'naukma.student'
+));
+
+router.post('/teacher', (req, res) => registrationHandler(
+    res,
+    req.body.login,
+    req.body.password,
+    'naukma.teacher'
+));
 
 export default router;