Add reCaptcha

app.js

@@ -4,6 +4,8 @@ let cookieParser = require("cookie-parser");
 let session = require("express-session");
 let logger = require("morgan");
 let { I18n } = require("i18n");
+let Recaptcha = require("express-recaptcha").RecaptchaV3;
+let config = process.env.NODE_ENV === "test" ? {} : require("./config/config.json");
 
 let indexRouter = require("./routes/index");
 let registerRouter = require("./routes/register");
@@ -17,7 +19,7 @@ let adminRouter = require("./routes/admin");
 
 let app = express();
 let sess = {
-  secret: process.env.NODE_ENV === "test" ? "Keyboard Cat" : require("./config/config.json").secret,
+  secret: process.env.NODE_ENV === "test" ? "Keyboard Cat" : config.secret,
   cookie: {}
 };
 let i18n = new I18n({
@@ -27,6 +29,7 @@ let i18n = new I18n({
   directory: __dirname + "/locales",
   objectNotation: true
 });
+let recaptcha = process.env.NODE_ENV === "test" ? null : new Recaptcha(config.siteKey, config.secretKey, {callback: "cb"});
 
 if (app.get("env") === "production") {
   app.set("trust proxy", 1);
@@ -36,6 +39,7 @@ if (app.get("env") === "production") {
 // view engine setup
 app.set("views", path.join(__dirname, "views"));
 app.set("view engine", "pug");
+app.set("recaptcha", recaptcha);
 
 app.use(logger("dev"));
 app.use(express.json());
@@ -48,6 +52,7 @@ if(process.env.NODE_ENV === "test")
   app.locals.test = true;
 app.use((req, res, next) => {
   res.locals.user = req.session.user;
+  res.locals.captcha = process.env.NODE_ENV === "test" ? undefined : recaptcha.render();
   next();
 });
 

config/config_exemple.json

@@ -6,5 +6,7 @@
     "database": "database_development",
     "host": "127.0.0.1",
     "dialect": "mysql"
-  }
+  },
+  "siteKey": "yjt,kugcjvhkyhgchkuyjgugjgcvkuh",
+  "secretKey": "yjt,vhjtfykjvhkhiuyhjvkjuiyvhjblhioguikjkly_lui"
 }

middlewares/reCaptcha.js

@@ -0,0 +1,13 @@
+let error = require("../routes/utils/error");
+
+module.exports = (req, res, next) => {
+    if(req.app.locals.test)
+        return next();
+    req.app.get("recaptcha").middleware.verify(req, res, () => {
+        if (req.recaptcha.error)
+            error(req, res, "Strange behaviour detected !", 400,
+                req.app.get("env") !== "production" ? req.recaptcha.error : undefined);
+        else
+            next();
+    });
+};

package-lock.json

@@ -887,6 +887,11 @@
         }
       }
     },
+    "express-recaptcha": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/express-recaptcha/-/express-recaptcha-5.0.2.tgz",
+      "integrity": "sha512-111xDDJo1HPVwcU+hG1X3vOzRFWx/Yp9pyQ7qOVjkSfRXh2qeU9tLo1I0HBa1oLrB8rQlyxLUI9XXP5iUePnnw=="
+    },
     "express-session": {
       "version": "1.17.1",
       "resolved": "https://registry.npmjs.org/express-session/-/express-session-1.17.1.tgz",

package.json

@@ -10,6 +10,7 @@
     "cookie-parser": "~1.4.4",
     "debug": "~2.6.9",
     "express": "~4.16.1",
+    "express-recaptcha": "^5.0.2",
     "express-session": "^1.17.1",
     "http-errors": "~1.6.3",
     "i18n": "^0.12.0",

routes/login.js

@@ -1,6 +1,7 @@
 const express = require("express");
 const router = express.Router();
 const models = require("../models");
+const reCaptcha = require("../middlewares/reCaptcha");
 
 router.get("/", async (req, res) => {
     if (req.session.user)
@@ -8,7 +9,7 @@ router.get("/", async (req, res) => {
     else
         res.render("login", { title: "SOD - Login" });
 })
-    .post("/", async (req, res) => {
+    .post("/", reCaptcha, async (req, res) => {
         if (!req.body.username || !req.body.password)
             res.redirect("/login");
         else {

routes/register.js

@@ -2,6 +2,7 @@ let express = require("express");
 let router = express.Router();
 let models = require("../models");
 let userCreate = require("./utils/userCreate");
+let reCaptcha = require("../middlewares/reCaptcha");
 
 
 router.get("/", async (req, res) => {
@@ -10,7 +11,7 @@ router.get("/",  async (req, res) => {
     else
         res.render("register", {title: "SOD - register", departments: await models.Department.findAll()});
 })
-    .post("/", async (req, res) => {
+    .post("/", reCaptcha, async (req, res) => {
         let user = await userCreate(req, res);
         if (user) {
             req.session.user = user;

views/layout.pug

@@ -1,3 +1,5 @@
+include mixin
+
 doctype html
 html
   head

views/login.pug

@@ -10,4 +10,4 @@ block content
             label(for="password")=__("password")+":"
             input#password(type="password" name="password" required)
         div.field
-            input(type="submit" value=__("login.submit"))
+            +submit(value=__("login.submit"))

views/mixin.pug

@@ -0,0 +1,16 @@
+mixin submit(value)
+    div.recaptcha.recaptcha-cb
+        input(type="submit" value!=value)
+        if !test
+            p !{captcha}
+            script.
+                function cb(token) {
+                    document.querySelectorAll("div.recaptcha.recaptcha-cb").forEach(el => {
+                        el.classList.remove("recaptcha-cb");
+                        let input = document.createElement("input");
+                        input.setAttribute("type", "hidden");
+                        input.setAttribute("name", "g-recaptcha-response");
+                        input.setAttribute("value", token);
+                        el.appendChild(input);
+                    });
+                }

views/register.pug

@@ -22,7 +22,7 @@ block content
             label(for="password")=__("password")+":"
             input#password(type="password" name="password" required)
         div.field
-            input(type="submit" value=__("register.submit"))
+            +submit(value=__("register.submit"))
 
     datalist#department-list
         each department in departments