commit c9f31e5c8a3ad3d2bcf860593761b84e28e17d95
Author: AndrewTrieu <andrewtrieu.2003@gmail.com>
Date:   Fri Apr 21 13:17:50 2023 +0300

    First commit

diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.vscode/settings.json
+project.zip
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/authserver/Dockerfile b/authserver/Dockerfile
new file mode 100644
index 0000000..8cebf7b
--- /dev/null
+++ b/authserver/Dockerfile
@@ -0,0 +1,13 @@
+FROM denoland/deno:alpine-1.29.2
+
+EXPOSE 7777
+
+WORKDIR /app
+
+COPY deps.js .
+
+RUN deno cache deps.js
+
+COPY . .
+
+CMD [ "run", "--unstable", "--watch", "--allow-all", "--no-check", "app-launch.js" ]
\ No newline at end of file
diff --git a/authserver/app-launch.js b/authserver/app-launch.js
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--- /dev/null
+++ b/authserver/app-launch.js
@@ -0,0 +1,7 @@
+import { app } from "./app.js";
+
+const options = {
+  port: 7777,
+};
+
+app.listen(options);
diff --git a/authserver/app.js b/authserver/app.js
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--- /dev/null
+++ b/authserver/app.js
@@ -0,0 +1,19 @@
+import { Application, Session } from "./deps.js";
+import { authMiddleware } from "./middlewares/authMiddleware.js";
+import { errorMiddleware } from "./middlewares/errorMiddleware.js";
+import { renderMiddleware } from "./middlewares/renderMiddleware.js";
+import { userMiddleware } from "./middlewares/userMiddleware.js";
+import { serveStaticMiddleware } from "./middlewares/serveStaticMiddleware.js";
+import { router } from "./routes/routes.js";
+
+const app = new Application();
+app.use(Session.initMiddleware());
+app.use(errorMiddleware);
+app.use(authMiddleware);
+app.use(userMiddleware);
+app.use(serveStaticMiddleware);
+app.use(renderMiddleware);
+app.use(router.routes());
+app.use(router.allowedMethods());
+
+export { app };
diff --git a/authserver/database/database.js b/authserver/database/database.js
new file mode 100644
index 0000000..a2a2600
--- /dev/null
+++ b/authserver/database/database.js
@@ -0,0 +1,10 @@
+import { postgres } from "../deps.js";
+
+let sql;
+if (Deno.env.get("DATABASE_URL")) {
+  sql = postgres(Deno.env.get("DATABASE_URL"));
+} else {
+  sql = postgres({});
+}
+
+export { sql };
diff --git a/authserver/deps.js b/authserver/deps.js
new file mode 100644
index 0000000..99341c8
--- /dev/null
+++ b/authserver/deps.js
@@ -0,0 +1,13 @@
+export { configure, renderFile } from "https://deno.land/x/eta@v2.0.0/mod.ts";
+export {
+  Application,
+  Router,
+  send,
+} from "https://deno.land/x/oak@v11.1.0/mod.ts";
+import { readFileSync } from "https://deno.land/std@0.152.0/node/fs.ts";
+export { readFileSync };
+import postgres from "https://deno.land/x/postgresjs@v3.3.3/mod.js";
+export { postgres };
+export { Session } from "https://deno.land/x/oak_sessions@v4.0.5/mod.ts";
+export * as bcrypt from "https://deno.land/x/bcrypt@v0.4.1/mod.ts";
+export * as validasaur from "https://deno.land/x/validasaur@v0.15.0/mod.ts";
diff --git a/authserver/fly.toml b/authserver/fly.toml
new file mode 100644
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--- /dev/null
+++ b/authserver/fly.toml
@@ -0,0 +1,38 @@
+# fly.toml file generated for authapp on 2023-04-20T11:14:23+03:00
+
+app = "authapp"
+kill_signal = "SIGINT"
+kill_timeout = 5
+primary_region = "arn"
+processes = []
+
+[env]
+
+[experimental]
+  auto_rollback = true
+
+[[services]]
+  http_checks = []
+  internal_port = 7777
+  processes = ["app"]
+  protocol = "tcp"
+  script_checks = []
+  [services.concurrency]
+    hard_limit = 25
+    soft_limit = 20
+    type = "connections"
+
+  [[services.ports]]
+    force_https = true
+    handlers = ["http"]
+    port = 80
+
+  [[services.ports]]
+    handlers = ["tls", "http"]
+    port = 443
+
+  [[services.tcp_checks]]
+    grace_period = "1s"
+    interval = "15s"
+    restart_limit = 0
+    timeout = "2s"
diff --git a/authserver/middlewares/authMiddleware.js b/authserver/middlewares/authMiddleware.js
new file mode 100644
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--- /dev/null
+++ b/authserver/middlewares/authMiddleware.js
@@ -0,0 +1,17 @@
+const restrictedPaths = ["/index"];
+
+const authMiddleware = async (context, next) => {
+  const user = await context.state.session.get("user");
+  if (
+    !user &&
+    restrictedPaths.some((path) =>
+      context.request.url.pathname.startsWith(path)
+    )
+  ) {
+    context.response.redirect("/auth/login");
+  } else {
+    await next();
+  }
+};
+
+export { authMiddleware };
diff --git a/authserver/middlewares/errorMiddleware.js b/authserver/middlewares/errorMiddleware.js
new file mode 100644
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--- /dev/null
+++ b/authserver/middlewares/errorMiddleware.js
@@ -0,0 +1,9 @@
+const errorMiddleware = async (context, next) => {
+  try {
+    await next();
+  } catch (e) {
+    console.log(e);
+  }
+};
+
+export { errorMiddleware };
diff --git a/authserver/middlewares/renderMiddleware.js b/authserver/middlewares/renderMiddleware.js
new file mode 100644
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--- /dev/null
+++ b/authserver/middlewares/renderMiddleware.js
@@ -0,0 +1,24 @@
+import { configure, renderFile } from "../deps.js";
+
+const renderMiddleware = async (context, next) => {
+  configure({
+    views: `${Deno.cwd()}/views/`,
+  });
+
+  context.render = async (file, data) => {
+    if (!data) {
+      data = {};
+    }
+
+    if (context.user) {
+      data.user = context.user;
+    }
+
+    context.response.headers.set("Content-Type", "text/html; charset=utf-8");
+    context.response.body = await renderFile(file, data);
+  };
+
+  await next();
+};
+
+export { renderMiddleware };
diff --git a/authserver/middlewares/serveStaticMiddleware.js b/authserver/middlewares/serveStaticMiddleware.js
new file mode 100644
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--- /dev/null
+++ b/authserver/middlewares/serveStaticMiddleware.js
@@ -0,0 +1,15 @@
+import { send } from "../deps.js";
+
+const serveStaticMiddleware = async (context, next) => {
+  if (context.request.url.pathname.startsWith("/static")) {
+    const path = context.request.url.pathname.substring(7);
+
+    await send(context, path, {
+      root: `${Deno.cwd()}/static`,
+    });
+  } else {
+    await next();
+  }
+};
+
+export { serveStaticMiddleware };
diff --git a/authserver/middlewares/userMiddleware.js b/authserver/middlewares/userMiddleware.js
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+++ b/authserver/middlewares/userMiddleware.js
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+import * as authService from "../services/authService.js";
+
+const userMiddleware = async (context, next) => {
+  const user = await context.state.session.get("user");
+
+  if (user) {
+    const userFromDatabase = await authService.findUser(user.username);
+    context.user = userFromDatabase[0];
+  }
+
+  await next();
+};
+
+export { userMiddleware };
diff --git a/authserver/routes/controllers/authController.js b/authserver/routes/controllers/authController.js
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+++ b/authserver/routes/controllers/authController.js
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+import * as authService from "../../services/authService.js";
+import { bcrypt, validasaur } from "../../deps.js";
+
+const validationRules = {
+  username: [validasaur.required],
+  password: [validasaur.minLength(8), validasaur.required],
+};
+
+const showLogin = ({ render }) => {
+  render("login.eta");
+};
+
+const showRegister = ({ render }) => {
+  render("register.eta");
+};
+
+const register = async ({ request, response, render }) => {
+  const body = request.body({ type: "form" });
+  const params = await body.value;
+  const userData = {
+    username: params.get("username"),
+    password: params.get("password"),
+  };
+
+  const userDatabase = await authService.findUser(userData.username);
+  if (userDatabase.length > 0) {
+    response.status = 422;
+    render("register.eta", {
+      errors: { error: { message: "Username already registered!" } },
+    });
+    return;
+  }
+
+  const [passes, errors] = await validasaur.validate(userData, validationRules);
+
+  if (!passes) {
+    response.status = 422;
+    userData.errors = errors;
+    render("register.eta", userData);
+  } else {
+    const hashedPassword = await bcrypt.hash(userData.password);
+    await authService.createUser(userData.username, hashedPassword);
+    render("register.eta", {
+      errors: { error: { message: "Registration successful!" } },
+    });
+  }
+};
+
+const login = async ({ request, response, state, render }) => {
+  const body = request.body({ type: "form" });
+  const params = await body.value;
+  const username = params.get("username");
+  const userDatabase = await authService.findUser(username);
+  if (userDatabase.length < 1) {
+    response.status = 422;
+    render("login.eta", {
+      errors: { error: { message: "Please enter correct username!" } },
+    });
+    return;
+  }
+
+  const user = userDatabase[0];
+  const passwordCorrect = await bcrypt.compare(
+    params.get("password"),
+    user.password
+  );
+
+  if (!passwordCorrect) {
+    response.status = 422;
+    render("login.eta", {
+      errors: { error: { message: "Please enter correct password!" } },
+    });
+    return;
+  }
+
+  await state.session.set("user", user);
+  response.redirect("/index");
+};
+
+const logout = async ({ response, state }) => {
+  await state.session.set("user", null);
+  response.redirect("/");
+};
+
+export { showLogin, showRegister, register, login, logout };
diff --git a/authserver/routes/controllers/homeController.js b/authserver/routes/controllers/homeController.js
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--- /dev/null
+++ b/authserver/routes/controllers/homeController.js
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+const showHome = async ({ state, render }) => {
+  const user = await state.session.get("user");
+  render("index.eta", user);
+};
+
+export { showHome };
diff --git a/authserver/routes/controllers/mainController.js b/authserver/routes/controllers/mainController.js
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--- /dev/null
+++ b/authserver/routes/controllers/mainController.js
@@ -0,0 +1,5 @@
+const showMain = async ({ render }) => {
+  render("main.eta");
+};
+
+export { showMain };
diff --git a/authserver/routes/routes.js b/authserver/routes/routes.js
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+++ b/authserver/routes/routes.js
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+import { Router } from "../deps.js";
+import * as mainController from "./controllers/mainController.js";
+import * as authController from "./controllers/authController.js";
+import * as homeController from "./controllers/homeController.js";
+
+const router = new Router();
+
+// mainController routes (home page)
+router.get("/", mainController.showMain);
+
+// authController routes (login and register)
+router.get("/auth/login", authController.showLogin);
+router.get("/auth/register", authController.showRegister);
+router.post("/auth/login", authController.login);
+router.post("/auth/register", authController.register);
+router.get("/logout", authController.logout);
+
+router.get("/index", homeController.showHome);
+
+export { router };
diff --git a/authserver/services/authService.js b/authserver/services/authService.js
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+++ b/authserver/services/authService.js
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+import { sql } from "../database/database.js";
+
+const findUser = async (username) => {
+  return await sql`SELECT * FROM users WHERE username = ${username}`;
+};
+
+const createUser = async (username, password) => {
+  return await sql`INSERT INTO users (username, password) VALUES (${username}, ${password})`;
+};
+
+export { findUser, createUser };
diff --git a/authserver/views/index.eta b/authserver/views/index.eta
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--- /dev/null
+++ b/authserver/views/index.eta
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+<% layout("./layouts/layout.eta") %>
+<h1>Online Forum</h1>
+
+<h2>Welcome!</h2>
+
+<p>You are authenticated, welcome <%= it.username %>!</p>
+
+
+
diff --git a/authserver/views/layouts/layout.eta b/authserver/views/layouts/layout.eta
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--- /dev/null
+++ b/authserver/views/layouts/layout.eta
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+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <link rel="stylesheet" href="https://unpkg.com/papercss@1.8.2/dist/paper.min.css">
+  <title>Online Forum</title>
+</head>
+<body>
+  <% if (it.user) { %>
+    <nav class="border fixed split-nav">
+        <div class="nav-brand">
+            <h3>Hello <%= it.user.username %>!</h3>
+        </div>
+        <div class="collapsible">
+            <input id="collapsible1" type="checkbox" name="collapsible1">
+            <label for="collapsible1">
+            <div class="bar1"></div>
+            <div class="bar2"></div>
+            </label>
+            <div class="collapsible-body">
+                <ul class="inline">
+                    <li><a href="/logout">Logout</a></li>
+                </ul>
+            </div>
+        </div>
+    </nav>
+  <% } %>
+
+  <div class="paper container">
+    <%~ it.body %>
+  </div>
+</body>
+</html>
\ No newline at end of file
diff --git a/authserver/views/login.eta b/authserver/views/login.eta
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+++ b/authserver/views/login.eta
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+<% layout("./layouts/layout.eta") %>
+
+<h1>Login</h1>
+
+<form method="POST" action="/auth/login">
+  Username:<br/>
+  <input type="text" name="username" /><br/>
+  Password:<br/>
+  <input type="password" name="password" /><br/>
+  <input type="submit" value="Login" />
+</form>
+
+<% if (it.errors) { %>
+<ul>
+    <% Object.keys(it.errors).forEach((error) => { %>
+        <% Object.values(it.errors[error]).forEach((err) => { %>
+            <li><%= err %></li>
+        <% }); %>
+    <% }); %>
+</ul>
+<% } %>
+<br/>
+
+<a href="/auth/register">Are you a new user?</a>
diff --git a/authserver/views/main.eta b/authserver/views/main.eta
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--- /dev/null
+++ b/authserver/views/main.eta
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+<% layout("./layouts/layout.eta") %>
+
+<h1>Online Forum</h1>
+
+<p>This is an online forum that allows the participants to join, post questions, answer the posts etc.</p>
+
+<p>Are you already registered? <a href="/auth/login">Login</a></p>
+
+<p>Not registered yet? <a href="/auth/register">Register</a></p>
diff --git a/authserver/views/register.eta b/authserver/views/register.eta
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--- /dev/null
+++ b/authserver/views/register.eta
@@ -0,0 +1,24 @@
+<% layout("./layouts/layout.eta") %>
+
+<h1>New user registration</h1>
+
+<form method="POST" action="/auth/register">
+  Username:<br/>
+  <input type="text" name="username" /><br/>
+  Password:<br/>
+  <input type="password" name="password" /><br/>
+  <input type="submit" value="Register" />
+</form>
+
+<% if (it.errors) { %>
+<ul>
+    <% Object.keys(it.errors).forEach((error) => { %>
+        <% Object.values(it.errors[error]).forEach((err) => { %>
+            <li><%= err %></li>
+        <% }); %>
+    <% }); %>
+</ul>
+<% } %>
+<br/>
+
+<a href="/auth/login">Are you already registered?</a>
diff --git a/docker-compose.yml b/docker-compose.yml
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--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,34 @@
+version: "3.4"
+
+services:
+  drill-and-practice:
+    build: authserver
+    image: authserver
+    restart: "no"
+    volumes:
+      - ./authserver/:/app
+    ports:
+      - 7777:7777
+    depends_on:
+      - database
+      - flyway
+    env_file:
+      - project.env
+
+  database:
+    container_name: database-p2-e8774b8e-c7a9-4cce-a779-3b59be02206d
+    image: postgres:14.1
+    restart: "no"
+    env_file:
+        - project.env
+
+  flyway:
+    image: flyway/flyway:9.11.0-alpine
+    depends_on:
+      - database
+    volumes:
+      - .:/flyway/sql
+    command: -connectRetries=60 -baselineOnMigrate=true migrate
+    env_file:
+      - project.env
+
diff --git a/flyway/sql/V1___initial_schema.sql b/flyway/sql/V1___initial_schema.sql
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--- /dev/null
+++ b/flyway/sql/V1___initial_schema.sql
@@ -0,0 +1,6 @@
+CREATE TABLE users (
+  id SERIAL PRIMARY KEY,
+  username VARCHAR(255) UNIQUE,
+  password CHAR(60)
+);
+
diff --git a/project.env b/project.env
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index 0000000..d85243e
--- /dev/null
+++ b/project.env
@@ -0,0 +1,16 @@
+# Database configuration for PostgreSQL (running in container called "database-p2-e8774b8e-c7a9-4cce-a779-3b59be02206d")
+POSTGRES_USER=username
+POSTGRES_PASSWORD=password
+POSTGRES_DB=database
+
+# Database configuration for Flyway (used for database migrations)
+FLYWAY_USER=username
+FLYWAY_PASSWORD=password
+FLYWAY_URL=jdbc:postgresql://database-p2-e8774b8e-c7a9-4cce-a779-3b59be02206d:5432/database
+
+# Database configuration for Deno's PostgreSQL driver
+PGUSER=username
+PGPASSWORD=password
+PGHOST=database-p2-e8774b8e-c7a9-4cce-a779-3b59be02206d
+PGPORT=5432
+PGDATABASE=database