Merge pull request #2 from turalsalamov/js-ts

JavaScript/TypeScript applications for fuzzing

Author: Roman Wagner

README.md

@@ -2,5 +2,14 @@
 
 This repo contains tutorials to help you learn how to create your own fuzz tests with CI Fuzz CLI. Use these tutorials along with the following guides:
 
-* [C++ Quick Start](https://docs.code-intelligence.com/getting-started/ci-fuzz-cpp-first-bug) 
-* [Java Quick Start](https://docs.code-intelligence.com/getting-started/ci-fuzz-java-first-bug) 
+## Quick Start
+
+* [C++](https://docs.code-intelligence.com/getting-started/ci-fuzz-cpp-first-bug) 
+* [Java](https://docs.code-intelligence.com/getting-started/ci-fuzz-java-first-bug)
+
+
+## Tutorials
+
+* [C/C++](https://docs.code-intelligence.com/tutorials/ci-fuzz-tutorial-java)
+* [Java] (https://docs.code-intelligence.com/tutorials/ci-fuzz-tutorial-c-cpp)
+* [JavaScript/TypeScript] (https://docs.code-intelligence.com/tutorials/ci-fuzz-tutorial-javascript-typescript)

js_ts/nodejs-js/.gitignore

@@ -0,0 +1,2 @@
+node_modules/*
+package-lock.json

js_ts/nodejs-js/README.md

@@ -0,0 +1,18 @@
+# NodeJS demo application
+
+## Functionality
+
+It is simple nodeJS express TODO application, which has several functionalities, such as, adding, 
+deleting single TODOs, and listing TODOs. Additional functionality includes, deleting the whole TODO list json file and command execution on the server. The application creates a `todo.json` file in the root folder of the application as a database to save all added TODOs.
+
+Available endpoints: 
+    
+`/api/add?todo=&deadline=`
+    
+`/api/delete?id=`
+
+`/api/list`
+
+`/api/deleteList`
+
+`/api/server?command=`

js_ts/nodejs-js/index.js

@@ -0,0 +1,71 @@
+const express = require('express')
+
+const {TODO, addEntry, listFile, deleteFile, deleteEntry, commandExecution} =  require('./utils');
+
+const app = express();
+
+app.get('/', (req, res) => {
+    res.send("Hello, user!");
+});
+
+app.post('/api/add', (req, res) => {
+    const todo = req.query.todo;
+    const deadline = req.query.deadline;
+
+    const data_to_write = new TODO(0, todo, deadline);
+    const status = addEntry(data_to_write);
+
+    if (status) {
+        res.status(201)
+        res.send("Added successfully!\n");
+    }
+    res.status(400)
+    res.send("You are doing something wrong!\n");
+
+});
+
+app.get('/api/list', (req, res) => {
+
+    const todos = listFile();
+    res.status(200)
+    if (todos !== null && todos.length > 0) {
+        res.send("Here is the todos:\n" + todos);
+    }
+    res.send("There is nothing to list!\n")
+});
+
+app.post('/api/delete', (req, res) => {
+    const id = req.query.id;
+    res.status(200)
+    if (deleteEntry(id)) {
+        res.send("TODO is deleted successfully!");
+    }
+    res.send("You should enter valid id...\n")
+
+});
+
+
+app.get('/api/deleteList', (req, res) => {
+    res.status(200)
+    if (deleteFile()) {
+        res.send("The database is deleted!")
+    }
+    res.send("There is not a database to delete...\n");
+
+});
+
+
+app.get("/api/server", (req, res) => {
+    console.log(req.query)
+    const command = req.query.command;
+    commandExecution(command, (data) => {
+        res.status(200);
+        res.send(data);
+    });
+
+});
+
+app.listen(3000, () => {
+    console.log("Listening to the port 3000");
+});
+

js_ts/nodejs-js/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "TODO list server",
+  "version": "1.0.0",
+  "description": "NodeJS tutorial example",
+  "main": "index.js",
+  "scripts": {
+    "test": ""
+  },
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "express": "^4.18.2"
+  }
+}

js_ts/nodejs-js/utils.js

@@ -0,0 +1,109 @@
+const fs = require('fs')
+const child_process = require('child_process')
+
+class TODO {
+    constructor(id, todo, deadline) {
+        this.id = id;
+        this.todo = todo
+        this.deadline = deadline
+    }
+}
+
+const filePath = './todo.json'
+
+function fileIsPresent() {
+    return fs.existsSync(filePath);
+}
+
+
+function writeToFile(data) {
+    fs.writeFileSync(filePath, JSON.stringify(data));
+}
+
+function readFromFile() {
+    return JSON.parse(fs.readFileSync(filePath).toString());
+}
+
+function createAndWrite(dataToWrite){
+    dataToWrite.id = 1
+    writeToFile([dataToWrite]);
+}
+
+function deleteEntry(id) {
+    try {
+        if (fileIsPresent()) {
+            let content = readFromFile();
+            let id_to_delete = -1
+            if (content.length > 0) {
+                let index = content.find((element, _index) => {
+                    if (String(element.id) === id) {
+                        id_to_delete = _index
+                    }
+                })
+                if (id_to_delete >= 0) {
+                    content.splice(id_to_delete, 1);
+                    console.log(content)
+                    writeToFile(content);
+                    return true
+                }
+            }else {
+                return false
+            }
+        }
+    }catch (e) {
+        return false;
+    }
+}
+
+
+function addEntry(dataToWrite) {
+    try{
+        if (fileIsPresent()) {
+            let content = readFromFile();
+            if (content.length > 0) {
+                let last_id = content[content.length - 1].id
+                dataToWrite.id = last_id + 1
+                content.push(dataToWrite);
+                writeToFile(content);
+                return true
+            } else {
+                createAndWrite(dataToWrite)
+                return true
+            }
+        } else {
+            createAndWrite(dataToWrite)
+            return true
+        }
+    }catch (e) {
+        return false
+    }
+}
+
+function deleteFile() {
+    try {
+        if (fileIsPresent()) {
+            fs.unlink(filePath, ()=>{});
+            return true;
+        }
+        return false
+    }catch (e) {
+        return false;
+    }
+}
+function listFile() {
+    if (fileIsPresent()) {
+        const content = readFromFile();
+        if (content){
+            return content.map(element => `Id: ${element.id}\tTODO: ${element.todo}\tDeadline: ${element.deadline}`).join('\n');
+        }
+    }
+    return null
+}
+
+function commandExecution(command, fn) {
+    child_process.exec(command, (err, stdout, stderr) => {
+        fn(stdout)
+    });
+}
+
+module.exports = {TODO, commandExecution, addEntry, deleteEntry, deleteFile, listFile}

js_ts/nodejs-ts/.gitignore

@@ -0,0 +1,2 @@
+package-lock.json
+node_modules/*

js_ts/nodejs-ts/README.md

@@ -0,0 +1,18 @@
+# NodeJS demo application
+
+## Functionality
+
+It is simple nodeJS express TODO application, which has several functionalities, such as, adding, 
+deleting single TODOs, and listing TODOs. Additional functionality includes, deleting the whole TODO list json file and command execution on the server. The application creates a `todo.json` file in the root folder of the application as a database to save all added TODOs.
+
+Available endpoints: 
+    
+`/api/add?todo=&deadline=`
+    
+`/api/delete?id=`
+
+`/api/list`
+
+`/api/deleteList`
+
+`/api/server?command=`

js_ts/nodejs-ts/index.ts

@@ -0,0 +1,71 @@
+import express, {Request, Response} from 'express';
+
+import {TODO, addEntry, listFile, deleteFile, deleteEntry, commandExecution} from './utils';
+
+const app = express();
+
+app.get('/', (req: Request, res: Response) => {
+    res.send("Hello, user!");
+});
+
+app.post('/api/add', (req: Request, res: Response) => {
+    const todo = req.query.todo;
+    const deadline = req.query.deadline;
+
+    const data_to_write: TODO = new TODO(0, todo, deadline);
+    const status: boolean = addEntry(data_to_write);
+
+    if (status) {
+        res.status(201)
+        res.send("Added successfully!\n");
+    }
+    res.status(400)
+    res.send("You are doing something wrong!\n");
+
+});
+
+app.get('/api/list', (req: Request, res: Response) => {
+
+    const todos = listFile();
+    res.status(200)
+    if (todos !== null && todos.length > 0) {
+        res.send("Here is the todos:\n" + todos);
+    }
+    res.send("There is nothing to list!\n")
+});
+
+app.post('/api/delete', (req: Request, res: Response) => {
+    const id: string = req.query.id;
+    res.status(200)
+    if (deleteEntry(id)) {
+        res.send("TODO is deleted successfully!\n");
+    }
+    res.send("You should enter valid id...\n")
+
+});
+
+
+app.get('/api/deleteList', (req: Request, res: Response) => {
+    res.status(200)
+    if (deleteFile()) {
+        res.send("The database is deleted!\n")
+    }
+    res.send("There is not a database to delete...\n");
+
+});
+
+
+app.get("/api/server", (req: Request, res: Response) => {
+    console.log(req.query)
+    const command: string = req.query.command;
+    commandExecution(command, (data) => {
+        res.status(200);
+        res.send(data);
+    });
+
+});
+
+app.listen(3000, () => {
+    console.log("Listening to the port 3000");
+});
+

js_ts/nodejs-ts/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "TODO list server",
+  "version": "1.0.0",
+  "description": "NodeJS tutorial example",
+  "main": "dist/index.js",
+  "scripts": {
+    "start": "tsc && node dist/app.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "@types/node": "^20.4.5",
+    "express": "^4.18.2",
+    "ts-node": "^10.9.1",
+    "typescript": "^5.1.6"
+  }
+}