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This repository was archived by the owner on May 27, 2021. It is now read-only.

Commit fb75c48

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krushirajkrushiraj
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added experimented code for online judge
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‎.gitignore

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.cache
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.cache/
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node_modules
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package-lock.json

‎openrank-backend/src/index.js

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@@ -2,7 +2,7 @@ import express from 'express';
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import cors from 'cors';
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import routes from './routes'
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console.log('Starting OpenRank Server');
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console.log('Starting OpenRank API Server');
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const app = express();
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app.use(cors());

‎openrank-execution/.babelrc

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{
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"presets": [
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"@babel/preset-env"
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]
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}

‎openrank-execution/.gitignore

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temp.*

‎openrank-execution/package.json

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{
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"name": "openrank-execution",
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"version": "1.0.0",
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"description": "server/instance for execution of user submitted code on openrank platform",
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"main": "src/index.js",
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"scripts": {
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"start": "nodemon --exec babel-node src/index.js",
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"repository": {
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"type": "git",
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"url": "git+https://github.com/coderplex/OpenRank.git"
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},
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"keywords": [
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"openrank",
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"execution",
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"code",
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"submission"
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],
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"author": "Coderplex",
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"license": "ISC",
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"dependencies": {
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"cors": "^2.8.5",
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"express": "^4.17.1",
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"node-cmd": "^3.0.0"
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},
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"devDependencies": {
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"@babel/core": "^7.5.5",
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"@babel/node": "^7.5.5",
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"@babel/preset-env": "^7.5.5",
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"nodemon": "^1.19.1"
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}
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}

‎openrank-execution/src/index.js

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import express from "express";
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import cors from "cors";
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// import routes from './routes'
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const fs = require("fs");
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const { exec } = require("child_process");
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console.log("Starting OpenRank Execution Server");
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const app = express();
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app.use(cors());
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app.use(express.urlencoded({ extended: true }));
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app.use(express.json());
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//Add handlers for routes here
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//Lang specific meta, we have to configure this manually for now
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const langMeta = {
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python3: {
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extension: "py",
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command: "py",
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interpreted: true
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},
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python2: {
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extension: "py",
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command: "python",
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interpreted: true
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},
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c: {
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extension: "c",
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command: "",
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interpreted: false,
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compile: "gcc"
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},
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java: {
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extension: "java",
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command: "java",
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interpreted: false,
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compile: "javac"
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}
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};
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app.post("/", (req, res) => {
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//NOTE: Experimentation code
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/*
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This route takes the language and code from request and executes
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it by spawning a child process based on the meta-data
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available for a given language
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*/
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const { lang, code } = req.body;
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fs.writeFile(`temp.${langMeta[lang].extension}`, code, err => {
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if (err) console.log(err);
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else console.log("Successfully Written to File.");
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});
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if (langMeta[lang].interpreted) {
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exec(
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`${langMeta[lang].command} temp.${langMeta[lang].extension}`,
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{ timeout: 1000 },
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(err, stdout, stderr) => res.send({ err, stderr, stdout })
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);
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} else {
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exec(
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`${langMeta[lang].compile} temp.${langMeta[lang].extension}`,
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(err, stdout, stderr) => {
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if (stderr == null && err == null) {
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exec(
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`${langMeta[lang].command} ./temp.${langMeta[lang].extension}`,
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{ timeout: 1000 },
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(err, stdout, stderr) => res.send({ err, stderr, stdout })
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);
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} else {
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res.send({ err, stderr, stdout });
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}
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}
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);
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}
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//TODO: Add logic to compare output with testcases saved in db before sending the response.
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});
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app.listen(8001, () => {
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console.log("Example app listening on port 8001!");
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});

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