added simple auth module and its solution

magranero · Feb 24, 2015 · 2101095 · 2101095
1 parent 8f4a71b
commit 2101095
Show file tree

Hide file tree

Showing 8 changed files with 310 additions and 0 deletions.
diff --git a/soluciones/tema3/simpleAuthModule/app.js b/soluciones/tema3/simpleAuthModule/app.js
@@ -0,0 +1,78 @@
+/* Dependencies */
+
+var express = require("express")
+  , env = process.env.NODE_ENV || "development"
+  , auth = require("./simpleauth")
+  , logger = require("morgan")
+  , bodyParser = require("body-parser")
+  , cookieParser = require("cookie-parser")
+  , cookieSession = require("cookie-session")
+
+var users = [
+  {
+    id: 0,
+    username: "[email protected]",
+    pass: "asdf"
+  }
+]
+
+auth.setStrategy({
+  serializeUser: function(user) {
+    return user.id
+  },
+  deserializeUser: function(userId, cb) {
+    if (userId in users) {
+      cb(users[userId])
+    } else {
+      cb(false)
+    }
+  },
+  checkCredentials: function(username, pass, cb) {
+    console.log(username, pass)
+    var user = users.filter(function(i) { return i.username === username })[0]
+    if (!user || user.pass !== pass) {
+      cb(null, false);
+    } else {
+      cb(null, user)
+    }
+  },
+  loginRoute: "/login.html"
+})
+
+var app = express()
+
+app.set('port', process.env.PORT || 3000)
+app.use(logger('dev'))
+app.use(bodyParser.json())
+app.use(bodyParser.urlencoded({extended: false}))
+
+
+app.use(cookieParser('secret'))
+app.use(cookieSession({keys: ['secret']}))
+
+app.use(express.static(__dirname +  '/public'))
+
+/* Rutas */
+
+app.get('/', function(req, res) {
+  res.redirect('/login.html');
+})
+
+app.post("/session", auth.createSession({ redirect: "/ok" }))
+
+app.get("/ok", auth.requiresSession, function(req, res) {
+  res.end("OK!")
+})
+
+app.get("/secret", auth.requiresSession, function(req, res) {
+  res.end("Hola, " + req.user.username)
+})
+
+app.get("/logout", auth.requiresSession, function(req, res) {
+  auth.destroySession(res)
+  res.redirect("/login.html")
+})
+
+app.listen(3000)
+
+/* TODO: Explain sessions and implement it properly using express sessions */
diff --git a/soluciones/tema3/simpleAuthModule/package.json b/soluciones/tema3/simpleAuthModule/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "redradix-nodejs-simpleauth",
+  "version": "0.0.1",
+  "private": true,
+  "dependencies": {
+    "express": "*",
+    "lodash": "*",
+    "morgan": "*",
+    "body-parser": "*",
+    "method-override": "*",
+    "cookie-parser": "*",
+    "cookie-session": "*"
+  }
+}
diff --git a/soluciones/tema3/simpleAuthModule/public/login.html b/soluciones/tema3/simpleAuthModule/public/login.html
@@ -0,0 +1,9 @@
+<html>
+  <body>
+    <form action="session" method="post" accept-charset="utf-8">
+      <input type="text" name="username" placeholder="usernmae">
+      <input type="password" name="password" placeholder="pass">
+      <p><input type="submit" value="Continue &rarr;"></p>
+    </form>
+  </body>
+</html>
diff --git a/soluciones/tema3/simpleAuthModule/simpleauth.js b/soluciones/tema3/simpleAuthModule/simpleauth.js
@@ -0,0 +1,60 @@
+var _ = require("lodash")
+
+strategy = {
+  serializeUser: function(user) {
+  },
+  deserializeUser: function(userId, cb) {
+  },
+  checkCredentials: function(username, pass, done) {
+  },
+  loginRoute: "/login"
+}
+
+exports.setStrategy = function(customStrategy) {
+  strategy = _.extend({}, strategy, customStrategy)
+}
+
+exports.createSession = function(options) {
+  var config = {
+    username: "username",
+    password: "password",
+    redirect: "/me",
+    failRedirect: strategy.loginRoute
+  }
+  config = _.extend({}, config, options)
+  return function(req, res, next) {
+    var username = req.body[config.username],
+        pass = req.body[config.password]
+    strategy.checkCredentials(username, pass, function(err, user) {
+      if (!err && user) {
+        res.cookie("user", strategy.serializeUser(user), {signed: true, maxAge: 1000*60*60*24*7})
+        res.redirect(config.redirect)
+      } else {
+        console.log("Credenciales incorrectas")
+        res.redirect(config.failRedirect)
+      }
+    })
+  }
+}
+
+exports.requiresSession = function(req, res, next) {
+  if (req.signedCookies.user) {
+    strategy.deserializeUser(req.signedCookies.user, function(user) {
+      if (!user)  {
+        console.log("El usuario no existe!")
+        res.clearCookie("user")
+        res.redirect(strategy.loginRoute)
+      } else {
+        req.user = user
+        next()
+      }
+    })
+  } else {
+    console.log("No existe la sesión...")
+    res.redirect(strategy.loginRoute)
+  }
+}
+
+exports.destroySession = function(res) {
+  res.clearCookie("user")
+}
diff --git a/tema3/simpleAuthModule/app.js b/tema3/simpleAuthModule/app.js
@@ -0,0 +1,66 @@
+/* Dependencies */
+
+var express = require("express")
+  , env = process.env.NODE_ENV || "development"
+  , auth = require("./simpleauth")
+  , logger = require("morgan")
+  , bodyParser = require("body-parser")
+  , cookieParser = require("cookie-parser")
+  , cookieSession = require("cookie-session")
+
+var users = [
+  {
+    id: 0,
+    username: "[email protected]",
+    pass: "asdf"
+  }
+]
+
+auth.setStrategy({
+  serializeUser: function(user) {
+
+  },
+  deserializeUser: function(userId, cb) {
+
+  },
+  checkCredentials: function(username, pass, cb) {
+
+  },
+  loginRoute: "/login.html"
+})
+
+var app = express()
+
+app.set('port', process.env.PORT || 3000)
+app.use(logger('dev'))
+app.use(bodyParser.json())
+app.use(bodyParser.urlencoded({extended: false}))
+
+
+app.use(cookieParser('secret'))
+app.use(cookieSession({keys: ['secret']}))
+
+app.use(express.static(__dirname +  '/public'))
+
+/* Rutas */
+
+app.get('/', function(req, res) {
+  res.redirect('/login.html');
+})
+
+app.post("/session", auth.createSession({ redirect: "/ok" }))
+
+app.get("/ok", auth.requiresSession, function(req, res) {
+  res.end("OK!")
+})
+
+app.get("/secret", auth.requiresSession, function(req, res) {
+  res.end("Hola, " + req.user.username)
+})
+
+app.get("/logout", auth.requiresSession, function(req, res) {
+  auth.destroySession(res)
+  res.redirect("/login.html")
+})
+
+app.listen(3000);
diff --git a/tema3/simpleAuthModule/package.json b/tema3/simpleAuthModule/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "redradix-nodejs-simpleauth",
+  "version": "0.0.1",
+  "private": true,
+  "dependencies": {
+    "express": "*",
+    "lodash": "*",
+    "morgan": "*",
+    "body-parser": "*",
+    "method-override": "*",
+    "cookie-parser": "*",
+    "cookie-session": "*"
+  }
+}
diff --git a/tema3/simpleAuthModule/public/login.html b/tema3/simpleAuthModule/public/login.html
@@ -0,0 +1,9 @@
+<html>
+  <body>
+    <form action="session" method="post" accept-charset="utf-8">
+      <input type="text" name="username" placeholder="usernmae">
+      <input type="password" name="password" placeholder="pass">
+      <p><input type="submit" value="Continue &rarr;"></p>
+    </form>
+  </body>
+</html>
diff --git a/tema3/simpleAuthModule/simpleauth.js b/tema3/simpleAuthModule/simpleauth.js
@@ -0,0 +1,60 @@
+var _ = require("lodash")
+
+strategy = {
+  serializeUser: function(user) {
+  },
+  deserializeUser: function(userId, cb) {
+  },
+  checkCredentials: function(username, pass, done) {
+  },
+  loginRoute: "/login"
+}
+
+exports.setStrategy = function(customStrategy) {
+  strategy = _.extend({}, strategy, customStrategy)
+}
+
+exports.createSession = function(options) {
+  var config = {
+    username: "username",
+    password: "password",
+    redirect: "/me",
+    failRedirect: strategy.loginRoute
+  }
+  config = _.extend({}, config, options)
+  return function(req, res, next) {
+    var username = req.body[config.username],
+        pass = req.body[config.password]
+    strategy.checkCredentials(username, pass, function(err, user) {
+      if (!err && user) {
+        res.cookie("user", strategy.serializeUser(user), {signed: true, maxAge: 1000*60*60*24*7})
+        res.redirect(config.redirect)
+      } else {
+        console.log("Credenciales incorrectas")
+        res.redirect(config.failRedirect)
+      }
+    })
+  }
+}
+
+exports.requiresSession = function(req, res, next) {
+  if (req.signedCookies.user) {
+    strategy.deserializeUser(req.signedCookies.user, function(user) {
+      if (!user)  {
+        console.log("El usuario no existe!")
+        res.clearCookie("user")
+        res.redirect(strategy.loginRoute)
+      } else {
+        req.user = user
+        next()
+      }
+    })
+  } else {
+    console.log("No existe la sesión...")
+    res.redirect(strategy.loginRoute)
+  }
+}
+
+exports.destroySession = function(res) {
+  res.clearCookie("user")
+}