A new docker container is made for each code uploaded

.dockerignore

@@ -0,0 +1,2 @@
+node_modules
+npm-debug.log

.gitignore

@@ -0,0 +1 @@
+node_modules

Dockerfile

@@ -0,0 +1,23 @@
+FROM ubuntu
+WORKDIR /usr/src/app
+COPY package*.json ./
+COPY . .
+RUN apt-get update
+RUN apt-get install curl -y
+RUN curl -sL https://deb.nodesource.com/setup_10.x | bash
+RUN apt-get install nodejs -y
+RUN npm install -y
+RUN apt-get install \
+    apt-transport-https \
+    ca-certificates \
+    curl \
+    gnupg-agent \
+    software-properties-common -y
+RUN curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
+RUN add-apt-repository \
+    "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
+    $(lsb_release -cs) \
+    stable"
+RUN apt-get update
+RUN apt-get install docker-ce docker-ce-cli containerd.io -y
+CMD ["npm","run","dev"]

Dockerfiles/DockerCPP

@@ -0,0 +1,4 @@
+FROM ubuntu
+WORKDIR /usr/src/app
+RUN apt-get update
+RUN apt-get install build-essential -y

Dockerfiles/DockerJava

@@ -0,0 +1,4 @@
+FROM ubuntu
+WORKDIR /usr/src/app
+RUN apt-get update
+RUN apt-get install openjdk-8-jdk -y

Dockerfiles/DockerPython

@@ -0,0 +1,7 @@
+FROM ubuntu
+WORKDIR /usr/src/app
+RUN apt-get update
+RUN apt-get install software-properties-common -y
+RUN add-apt-repository ppa:deadsnakes/ppa -y
+RUN apt-get update
+RUN apt-get install python3.8 -y

LICENSE

@@ -1,21 +1,21 @@
-MIT License
-
-Copyright (c) 2020 Abhigyan Abhikaushalam Students' Forum
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+MIT License
+
+Copyright (c) 2020 Rajat Maheshwari
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,2 +1,182 @@
-# Remote Code Executor 
-- Server Side Code for a Remote Code Executor 
+<p align="center">
+  <a href="https://github.com/rajatmaheshwari2512/remote-code-exec">
+  </a>
+
+  <h3 align="center">Remote Code Executor</h3>
+
+  <p align="center">
+    Server-side code of a Remote Code Executor
+    <br />
+    <a href="https://github.com/rajatmaheshwari2512/remote-code-exec/issues">Report Bug</a>
+    ·
+    <a href="https://github.com/rajatmaheshwari2512/remote-code-exec/issues">Request Feature</a>
+  </p>
+</p>
+
+<!-- TABLE OF CONTENTS -->
+<details open="open">
+  <summary><h2 style="display: inline-block">Table of Contents</h2></summary>
+  <ol>
+    <li>
+      <a href="#about-the-project">About The Project</a>
+      <ul>
+        <li><a href="#built-with">Built With</a></li>
+      </ul>
+    </li>
+    <li>
+      <a href="#getting-started">Getting Started</a>
+      <ul>
+        <li><a href="#prerequisites">Prerequisites</a></li>
+        <li><a href="#installation">Installation</a></li>
+      </ul>
+    </li>
+    <li><a href="#usage">Usage</a></li>
+    <li><a href="#roadmap">Roadmap</a></li>
+    <li><a href="#contributing">Contributing</a></li>
+    <li><a href="#license">License</a></li>
+    <li><a href="#contact">Contact</a></li>
+  </ol>
+</details>
+
+<!-- ABOUT THE PROJECT -->
+
+## About The Project
+
+This is the server-side code of a Remote Code Executor. This is a project assigned by the Coding forum of my college and is similar to the Online IDEs of websites like CodeChef and Leetcode.
+
+Salient Features:
+
+- Code Sanitisation
+- An individual Docker Container is created for every code posted on the API, so no code interferes with any other code
+- All Async code so that the server can handle multiple requests without error
+
+### Built With
+
+<a href="https://nodejs.org" target="_blank"> <img src="https://devicons.github.io/devicon/devicon.git/icons/nodejs/nodejs-original-wordmark.svg" alt="nodejs" width="40" height="40"/> </a>
+<a href="https://www.docker.com/" target="_blank"> <img src="https://devicons.github.io/devicon/devicon.git/icons/docker/docker-original-wordmark.svg" alt="docker" width="40" height="40"/> </a>
+
+<!-- GETTING STARTED -->
+
+## Getting Started
+
+To get a local copy up and running follow these simple steps.
+
+### Prerequisites
+
+- npm
+  ```sh
+  npm install npm@latest -g
+  ```
+- docker
+  ```sh
+  curl -fsSL https://get.docker.com -o get-docker.sh
+  ```
+  ```sh
+  sudo sh get-docker.sh
+  ```
+
+### Installation
+#### If you are on a Linux(preferably Ubuntu) Machine
+1. Clone the repo
+   ```sh
+   git clone https://github.com/rajatmaheshwari2512/remote-code-exec
+   ```
+2. Install NPM packages
+   ```sh
+   npm install
+   ```
+3. To build the docker images
+   ```sh 
+   cd Dockerfiles 
+   ```
+   ```sh 
+   docker build -t cpp:v1 -f DockerCPP . 
+   ```
+   ```sh 
+   docker build -t python:v1 -f DockerPython . 
+   ```
+   ```sh 
+   docker build -t java:v1 -f DockerJava . 
+   ```
+#### If you are on any other Machine
+1. Clone the repo
+   ```sh
+   git clone https://github.com/rajatmaheshwari2512/remote-code-exec
+   ```
+2. Install NPM packages
+   ```sh
+   npm install
+   ```
+3. Build the Server's Dockerfile
+   ```sh
+   docker build -t rceserver:v1 .
+   ```
+4. Run the Docker Image
+   ```sh
+   docker run --privileged=true -v /var/run/docker.sock:/var/run/docker.sock -d -p 3000:3000 rceserver:v1  
+   ```
+5. Create a shell to the created Docker Container
+   ```sh
+   docker ps
+   ```
+   ```sh
+   docker exec -it <container_id> /bin/bash
+   ```
+6. Build the Images inside the Container
+   ```sh 
+   cd Dockerfiles 
+   ```
+   ```sh 
+   docker build -t cpp:v1 -f DockerCPP . 
+   ```
+   ```sh 
+   docker build -t python:v1 -f DockerPython . 
+   ```
+   ```sh 
+   docker build -t java:v1 -f DockerJava . 
+   ```
+<!-- USAGE EXAMPLES -->
+
+## Usage
+
+1.  To run the server in dev mode use
+    ```sh
+    npm run dev
+    ```
+2.  To run the server in production mode
+    ```sh 
+    npm start 
+    ```
+3.  Note that dev mode uses nodemon so that the server can be changed and restarted easily
+
+<!-- ROADMAP -->
+
+## Roadmap
+
+See the [open issues](https://github.com/rajatmaheshwari2512/remote-code-exec/issues) for a list of proposed features (and known issues).
+
+<!-- CONTRIBUTING -->
+
+## Contributing
+
+Contributions are what make the open source community such an amazing place to be learn, inspire, and create. Any contributions you make are **greatly appreciated**.
+
+1. Fork the Project
+2. Create your Feature Branch (`git checkout -b feature/AmazingFeature`)
+3. Commit your Changes (`git commit -m 'Add some AmazingFeature'`)
+4. Push to the Branch (`git push origin feature/AmazingFeature`)
+5. Open a Pull Request
+
+<!-- LICENSE -->
+
+## License
+
+Distributed under the MIT License. See `LICENSE` for more information.
+
+<!-- CONTACT -->
+
+## Contact
+
+Rajat Maheshwari - [email protected]
+
+Project Link: [https://github.com/rajatmaheshwari2512/remote-code-exec](https://github.com/rajatmaheshwari2512/remote-code-exec)

app.js

@@ -4,6 +4,8 @@ var cookieParser = require("cookie-parser");
 var logger = require("morgan");
 var codeRouter = require("./routes/codeUpload");
 var cors = require("cors");
+var swaggerUi = require("swagger-ui-express"),
+  swaggerDocument = require("./swagger.json");
 
 var app = express();
 
@@ -14,6 +16,7 @@ app.use(cookieParser());
 app.use(cors());
 
 app.use("/codeupload", codeRouter);
+app.use("/", swaggerUi.serve, swaggerUi.setup(swaggerDocument));
 
 app.use(function (req, res, next) {
   next(createError(404));

bin/www

@@ -51,4 +51,4 @@ function onError(error) {
 
 function onListening() {
   console.log("Server running on localhost:" + port);
-}
+}

languages/cpp.js

@@ -2,25 +2,34 @@ const util = require("util");
 const exec = util.promisify(require("child_process").exec);
 var fs = require("fs");
 
-const cpp = (input, res) => {
-  fs.writeFile("input.txt", input, (err) => {
+const cpp = (input, res, name) => {
+  fs.writeFile(`${name}.txt`, input, (err) => {
     if (err) res.json({ error: err });
-    exec("g++ input.cpp && ./a.out <input.txt", {
-      timeout: 5000,
-      maxBuffer: 50000,
-    })
-      .then((result) => {
-        res.json(result);
-        exec("rm input.cpp && rm a.out").then((resp) =>
-          console.log("CPP File Deleted")
-        );
-        exec("rm input.txt").then((resp) => console.log("Input CPP Deleted"));
-      })
-      .catch((err) => {
-        res.json(err);
-        exec("rm input.cpp").then((resp) => console.log("CPP File Deleted"));
-        exec("rm input.txt").then((resp) => console.log("Input CPP Deleted"));
-      });
+    exec("docker run -d -it cpp:v1 /bin/bash").then((resp) => {
+      var id = resp.stdout.substring(0, 12);
+      exec(
+        `docker cp ${name}.cpp ${id}:/usr/src/app/test.cpp && docker cp ${name}.txt ${id}:/usr/src/app/input.txt && docker exec ${id} bash -c "g++ test.cpp && ./a.out<input.txt"`,
+        { timeout: 10000, maxBuffer: 50000 }
+      )
+        .then((resp) => {
+          res.json(resp);
+          exec(`rm ${name}.cpp && rm ${name}.txt`).then((resp) =>
+            console.log("Files removed")
+          );
+          exec(`docker kill ${id}`).then((resp) =>
+            console.log("Container Stopped")
+          );
+        })
+        .catch((err) => {
+          res.json(err);
+          exec(`rm ${name}.cpp && rm ${name}.txt`).then((resp) =>
+            console.log("Files removed")
+          );
+          exec(`docker kill ${id}`).then((resp) =>
+            console.log("Container Stopped")
+          );
+        });
+    });
   });
 };
-module.exports = cpp;
+module.exports = cpp;

languages/java.js

@@ -0,0 +1,35 @@
+const util = require("util");
+const exec = util.promisify(require("child_process").exec);
+var fs = require("fs");
+
+const java = (input, res, name) => {
+  fs.writeFile(`${name}.txt`, input, (err) => {
+    if (err) res.json({ error: err });
+    exec("docker run -d -it java:v1 /bin/bash").then((resp) => {
+      var id = resp.stdout.substring(0, 12);
+      exec(
+        `docker cp ${name}.java ${id}:/usr/src/app/test.java && docker cp ${name}.txt ${id}:/usr/src/app/input.txt && docker exec ${id} bash -c "javac test.java && java test<input.txt"`,
+        { timeout: 15000, maxBuffer: 50000 }
+      )
+        .then((resp) => {
+          res.json(resp);
+          exec(`rm ${name}.java && rm ${name}.txt`).then((resp) =>
+            console.log("Files removed")
+          );
+          exec(`docker kill ${id}`).then((resp) =>
+            console.log("Container Stopped")
+          );
+        })
+        .catch((err) => {
+          res.json(err);
+          exec(`rm ${name}.java && rm ${name}.txt`).then((resp) =>
+            console.log("Files removed")
+          );
+          exec(`docker kill ${id}`).then((resp) =>
+            console.log("Container Stopped")
+          );
+        });
+    });
+  });
+};
+module.exports = java;