From 5ef0872d0354040a69e191a5650f8b9e1295d46c Mon Sep 17 00:00:00 2001
From: Manish Kumar <manishprivet@protonmail.com>
Date: Sun, 20 Dec 2020 23:40:48 +0530
Subject: [PATCH 01/13] Added Promises

---
 index.js               | 50 ++++++++++++++++++++++++++++--------------
 utils/file-executor.js | 40 +++++++++++++++++++++++++++------
 2 files changed, 67 insertions(+), 23 deletions(-)

diff --git a/index.js b/index.js
index ace0146..8035687 100644
--- a/index.js
+++ b/index.js
@@ -1,21 +1,39 @@
 
-const { execute } = require("./utils/file-executor.js");
-const {exec} = require("child_process");
-const fs = require("fs");
+const { execPromise, writeFilePromise, deleteFilePromise } = require("./utils/file-executor.js");
 
 const data = `console.log("Hello World!!!");`;
 
-fs.writeFile("temp/code.js", data, (err) => {
-  if (err) console.log(err);
-  console.log("Successfully Written to File.");
-  exec("node temp/code.js", function(error, stdout, stderr) {
-    console.log(error);
-    console.log(stdout);
-    console.log(stderr);
+// fs.writeFile("temp/code.js", data, (err) => {
+//   if (err) console.log(err);
+//   console.log("Successfully Written to File.");
+//   exec("node temp/code.js", function(error, stdout, stderr) {
+//     console.log(error);
+//     console.log(stdout);
+//     console.log(stderr);
     
-    fs.unlink("temp/code.js", () => {
-      console.log("File Deleted!!!")
-    });
-  });
-});
-// execute();
\ No newline at end of file
+//     fs.unlink("temp/code.js", () => {
+//       console.log("File Deleted!!!")
+//     });
+//   });
+// });
+
+const test =  () => {
+  try {
+    await writeFilePromise("temp/code.js", data);
+    const output = await execPromise("node temp/code.js");
+    console.log(output);
+    await deleteFilePromise("temp/code.js");
+  } catch(err) {
+    console.log(err);
+  }
+  
+  // writeFilePromise("temp/code.js", data)
+  //   .then(() => execPromise("node temp/code.js"))
+  //   .then((output) => {
+  //     console.log(output);
+  //     return deleteFilePromise("temp/code.js");
+  //   })
+  //   .catch((err) => console.log(err))
+}
+
+test();
\ No newline at end of file
diff --git a/utils/file-executor.js b/utils/file-executor.js
index 9b3b2fc..64c2092 100644
--- a/utils/file-executor.js
+++ b/utils/file-executor.js
@@ -1,11 +1,37 @@
 const { exec } = require('child_process');
+const fs = require("fs");
 
-const execute = () => {
-    exec("node temp/code.js", function(error, stdout, stderr) {
-        console.log(error);
-        console.log(stdout);
-        console.log(stderr)
+// const execute = () => {
+//     exec("node temp/code.js", function(error, stdout, stderr) {
+//         console.log(error);
+//         console.log(stdout);
+//         console.log(stderr)
+//     });
+// }
+
+const execPromise = (command) => new Promise((resolve, reject) => {
+    exec(command, function(error, stdout, stderr) {
+        if(error) reject(error);
+        else {
+            const isError = Boolean(stderr);
+            resolve({ isError, output: stdout || stderr });
+        }
     });
-}
+});
+
+const writeFilePromise = (location, data) => new Promise((resolve, reject) => {
+    fs.writeFile(location, data, function(err) {
+        if(err) reject(err);
+        else resolve();
+    })
+});
+
+const deleteFilePromise = (location) => new Promise((resolve, reject) => {
+    fs.unlink(location, (err) => {
+        if(err) reject(err);
+        else resolve();
+    })
+})
+
 
-module.exports = { execute };
\ No newline at end of file
+module.exports = {  execPromise, writeFilePromise, deleteFilePromise };
\ No newline at end of file

From 1bbcb4cd783ca9a918eb939e4999f5ecdaf4cd78 Mon Sep 17 00:00:00 2001
From: Poorvi Vaish <img_2019047@iiitm.ac.in>
Date: Tue, 29 Dec 2020 14:54:03 +0530
Subject: [PATCH 02/13] Added first API

---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 5ed7716..2445ff8 100644
--- a/index.js
+++ b/index.js
@@ -16,7 +16,7 @@ app.post("/execNode", async(req, res)=>{
   const data = req.body.code;
   // console.log(data);
   const output = await execNode(data);
-  // console.log(output);
+  console.log(output);
   res.send(output);
 })
 app.listen(3000, ()=>

From d13aabf92cf56bfd15e644eb9af0a88a3af68784 Mon Sep 17 00:00:00 2001
From: Poorvi Vaish <img_2019047@iiitm.ac.in>
Date: Sun, 3 Jan 2021 23:50:51 +0530
Subject: [PATCH 03/13] Added Dockerfile

---
 .dockerignore      |  2 ++
 Dockerfile         | 15 +++++++++++++++
 index.js           | 22 ++++++++++++++++++++--
 utils/executor.js  | 36 +++++++++++++++++++++++++++++++++---
 utils/temp/code.js |  1 -
 utils/temp/code.py |  6 ++++++
 6 files changed, 76 insertions(+), 6 deletions(-)
 create mode 100644 .dockerignore
 create mode 100644 Dockerfile
 delete mode 100644 utils/temp/code.js
 create mode 100644 utils/temp/code.py

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..5171c54
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,2 @@
+node_modules
+npm-debug.log
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..013bbd7
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,15 @@
+FROM node:12.18
+
+WORKDIR /rce
+
+RUN apt-get install python3 -y
+RUN apt-get update && \
+    apt-get -y install gcc mono-mcs && \
+    rm -rf /var/lib/apt/lists/*
+
+copy . .
+RUN npm install
+ENV PORT=8080
+EXPOSE 8080
+
+CMD [ "node", "index.js" ]
\ No newline at end of file
diff --git a/index.js b/index.js
index 2445ff8..11be3aa 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,8 @@
 const express = require('express');
 const cors = require('cors');
-const { execNode } = require('./utils/executor');
+const { execNode, execPython, execCpp } = require('./utils/executor');
 const app = express();
+const PORT = process.env.PORT || 3000;
 
 app.use(express.json());
 app.use(cors());
@@ -19,7 +20,24 @@ app.post("/execNode", async(req, res)=>{
   console.log(output);
   res.send(output);
 })
-app.listen(3000, ()=>
+app.post("/execPython", async(req, res)=>{
+  
+  const data = req.body.code;
+  // console.log(data);
+  const output = await execPython(data);
+  console.log(output);
+  res.send(output);
+})
+
+app.post("/execCpp", async(req, res)=>{
+  
+  const data = req.body.code;
+  // console.log(data);
+  const output = await execCpp(data);
+  console.log(output);
+  res.send(output);
+})
+app.listen(PORT, ()=>
 {
   console.log("Server started!!");
 });
\ No newline at end of file
diff --git a/utils/executor.js b/utils/executor.js
index 95b3536..48381bb 100644
--- a/utils/executor.js
+++ b/utils/executor.js
@@ -2,10 +2,11 @@
 const { execPromise, writeFilePromise, deleteFilePromise } = require("./file-executor.js");
 
 const execNode =  async (data) => {
-    const filePath = __dirname + "/temp/code.js"
+    const filename = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 5);
+    const filePath = __dirname + `/temp/${filename}.js`
   try {
     await writeFilePromise(filePath, data);
-    const output = await execPromise("node utils/temp/code.js");
+    const output = await execPromise(`node utils/temp/${filename}.js`);
     // console.log(output);
     await deleteFilePromise(filePath);
     return output;
@@ -14,4 +15,33 @@ const execNode =  async (data) => {
     return err;
   }
 }
-module.exports = { execNode }
\ No newline at end of file
+const execCpp =  async (data) => {
+  const filename = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 5);
+  const filePath = __dirname + `/temp/${filename}.cpp`
+try {
+  await writeFilePromise(filePath, data);
+  const output = await execPromise(`g++ -o utils/temp/${filename} utils/temp/${filename}.cpp && ./utils/temp/${filename}`);
+  // console.log(output);
+  await deleteFilePromise(filePath);
+  await deleteFilePromise(`./utils/temp/${filename}`);
+  return output;
+} catch(err) {
+  // console.log(err);
+  return err;
+}
+}
+const execPython =  async (data) => {
+  const filename = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 5);
+  const filePath = __dirname + `/temp/${filename}.py`
+try {
+  await writeFilePromise(filePath, data);
+  const output = await execPromise(`python3 utils/temp/${filename}.py`);
+  // console.log(output);
+  await deleteFilePromise(filePath);
+  return output;
+} catch(err) {
+  // console.log(err);
+  return err;
+}
+}
+module.exports = { execNode, execPython, execCpp }
\ No newline at end of file
diff --git a/utils/temp/code.js b/utils/temp/code.js
deleted file mode 100644
index 24dc37f..0000000
--- a/utils/temp/code.js
+++ /dev/null
@@ -1 +0,0 @@
-console.log("22);
\ No newline at end of file
diff --git a/utils/temp/code.py b/utils/temp/code.py
new file mode 100644
index 0000000..67239e7
--- /dev/null
+++ b/utils/temp/code.py
@@ -0,0 +1,6 @@
+#include <iostream> 
+ #include<stdio.h> 
+ using namespace std; 
+ int main(){
+ std::cout<<"helloo world"; 
+ return 0;}
\ No newline at end of file

From a5b0a50461a2438654cf1bd42262f4e40362f77d Mon Sep 17 00:00:00 2001
From: Poorvi Vaish <img_2019047@iiitm.ac.in>
Date: Sun, 31 Jan 2021 00:31:31 +0530
Subject: [PATCH 04/13] Error handling

---
 index.js               | 1 +
 utils/file-executor.js | 6 +++---
 utils/temp/hdyjo.py    | 1 +
 utils/temp/ncqzo.py    | 1 +
 utils/temp/nmtrv.py    | 1 +
 utils/temp/vxoyc.py    | 1 +
 6 files changed, 8 insertions(+), 3 deletions(-)
 create mode 100644 utils/temp/hdyjo.py
 create mode 100644 utils/temp/ncqzo.py
 create mode 100644 utils/temp/nmtrv.py
 create mode 100644 utils/temp/vxoyc.py

diff --git a/index.js b/index.js
index 11be3aa..d269f3e 100644
--- a/index.js
+++ b/index.js
@@ -26,6 +26,7 @@ app.post("/execPython", async(req, res)=>{
   // console.log(data);
   const output = await execPython(data);
   console.log(output);
+  
   res.send(output);
 })
 
diff --git a/utils/file-executor.js b/utils/file-executor.js
index 5eea4b1..e90d60a 100644
--- a/utils/file-executor.js
+++ b/utils/file-executor.js
@@ -4,8 +4,8 @@ const fs = require("fs");
 
 const execPromise = (command) => new Promise((resolve, reject) => {
     exec(command, function(error, stdout, stderr) {
-        // console.log(stdout, stderr,error);
-        if(error) reject(error);
+        // console.log(stdout, stderr, error);
+        if(error) reject(JSON.stringify(error, Object.getOwnPropertyNames(error)));
         else {
             const isError = Boolean(stderr);
             resolve({ isError, output: stdout || stderr });
@@ -28,4 +28,4 @@ const deleteFilePromise = (location) => new Promise((resolve, reject) => {
 })
 
 
-module.exports = {  execPromise, writeFilePromise, deleteFilePromise };
\ No newline at end of file
+module.exports = { execPromise, writeFilePromise, deleteFilePromise };
\ No newline at end of file
diff --git a/utils/temp/hdyjo.py b/utils/temp/hdyjo.py
new file mode 100644
index 0000000..b746df4
--- /dev/null
+++ b/utils/temp/hdyjo.py
@@ -0,0 +1 @@
+print"helloooo"
\ No newline at end of file
diff --git a/utils/temp/ncqzo.py b/utils/temp/ncqzo.py
new file mode 100644
index 0000000..b746df4
--- /dev/null
+++ b/utils/temp/ncqzo.py
@@ -0,0 +1 @@
+print"helloooo"
\ No newline at end of file
diff --git a/utils/temp/nmtrv.py b/utils/temp/nmtrv.py
new file mode 100644
index 0000000..75484fa
--- /dev/null
+++ b/utils/temp/nmtrv.py
@@ -0,0 +1 @@
+print("helloooo )
\ No newline at end of file
diff --git a/utils/temp/vxoyc.py b/utils/temp/vxoyc.py
new file mode 100644
index 0000000..b746df4
--- /dev/null
+++ b/utils/temp/vxoyc.py
@@ -0,0 +1 @@
+print"helloooo"
\ No newline at end of file

From 0b5ab51d7cca13a25bed714509f75358ce0ff197 Mon Sep 17 00:00:00 2001
From: Manish Kumar <manishprivet@protonmail.com>
Date: Sun, 31 Jan 2021 11:52:10 +0530
Subject: [PATCH 05/13] Create deploy.yml

---
 .github/workflows/deploy.yml | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 .github/workflows/deploy.yml

diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
new file mode 100644
index 0000000..fbd7397
--- /dev/null
+++ b/.github/workflows/deploy.yml
@@ -0,0 +1,32 @@
+on:
+  release:
+    types: [created]
+
+name: Deploy to Production
+
+jobs:
+  deploy:
+    name: Deploy
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Push to Docker Hub
+        uses: docker/build-push-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+          repository: poorvivaish/rce
+          tags: latest
+
+      - name: Setup key
+        id: setup-key
+        env:
+          EC2_KEY: ${{ secrets.EC2_KEY }}
+        run: |
+          echo "$EC2_KEY" >> $HOME/key.pem
+          chmod 400 $HOME/key.pem
+      - name: Update image on server
+        run: ssh -i $HOME/key.pem -o StrictHostKeyChecking=no ubuntu@52.206.192.83 './deploy.sh'

From e850a1219293be5ed5386a07d4a6de7b78328226 Mon Sep 17 00:00:00 2001
From: Manish Kumar <manishprivet@protonmail.com>
Date: Sun, 31 Jan 2021 15:34:14 +0530
Subject: [PATCH 06/13] Update deploy.yml

---
 .github/workflows/deploy.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index fbd7397..2685cb9 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -29,4 +29,4 @@ jobs:
           echo "$EC2_KEY" >> $HOME/key.pem
           chmod 400 $HOME/key.pem
       - name: Update image on server
-        run: ssh -i $HOME/key.pem -o StrictHostKeyChecking=no ubuntu@52.206.192.83 './deploy.sh'
+        run: ssh -i $HOME/key.pem -o StrictHostKeyChecking=no ubuntu@3.139.253.83 './deploy.sh'

From 03cbd10198a07b0b4fb994627c3fd71d83edd3b5 Mon Sep 17 00:00:00 2001
From: Manish Kumar <manishprivet@protonmail.com>
Date: Sun, 31 Jan 2021 15:44:50 +0530
Subject: [PATCH 07/13] Update file-executor.js

---
 utils/file-executor.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/utils/file-executor.js b/utils/file-executor.js
index e90d60a..85a5a31 100644
--- a/utils/file-executor.js
+++ b/utils/file-executor.js
@@ -3,7 +3,7 @@ const fs = require("fs");
 
 
 const execPromise = (command) => new Promise((resolve, reject) => {
-    exec(command, function(error, stdout, stderr) {
+    exec(command, { timeout: 2000, maxBuffer: 1024 * 1024 * 5 }, function(error, stdout, stderr) {
         // console.log(stdout, stderr, error);
         if(error) reject(JSON.stringify(error, Object.getOwnPropertyNames(error)));
         else {
@@ -28,4 +28,4 @@ const deleteFilePromise = (location) => new Promise((resolve, reject) => {
 })
 
 
-module.exports = { execPromise, writeFilePromise, deleteFilePromise };
\ No newline at end of file
+module.exports = { execPromise, writeFilePromise, deleteFilePromise };

From c770550ce12b9f52a7ad8cf3ec84c572c39067fb Mon Sep 17 00:00:00 2001
From: Manish Kumar <manishprivet@protonmail.com>
Date: Sun, 31 Jan 2021 16:47:56 +0530
Subject: [PATCH 08/13] Update README.md

---
 README.md | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 53 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index b0c0d50..e3dadc1 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,62 @@
 # Remote-Code-Executor
-RCE is a Remote Code Executor, as the name suggests Is a Docker-based sandbox environment to run a code snippet. It will create a new docker based container for every submitted code, run it in the isolated container, and return the output. It will support major languages C, C++, and can be extended to other language support too.
+RCE is a Remote Code Executor, as the name suggests Is a Docker-based sandbox environment to run a code snippet. It will create a new file for each code input, execute it, delete the file and return the output. It supports major languages, i.e., C++, JavaScript and Python, and can be extended to other language support too.
 
 # Features:
-- Backend APIs and logic to handle the submitted code, create a docker container, execute it, and return the results. 
-- Minimal UI for user interaction and code submission.
+- Backend APIs and logic to handle the submitted code, execute it, and return the results. 
 - Can be extended to an Online Code Judge and full-fledged coding/interview platform.
 
 # Tech stack: 
 - Node.js
-- Any Frontend framework or Basic HTML 
 - Javascript
 - Docker 
-- Bash scripting.
+- Bash scripting
+- Nginx
+- Github Actions
+
+# Concepts Used
+- Frontend and Backend were made separate for making it possible to scale them individually.
+- exec function from `child-processes` package in NodeJS was used to execute programs.
+- Application was containerized and is present on DockerHub, so that it can be used anywhere.
+- Server has a Nginx Web Server front, for high performance and stability.
+- HTTPS for the server was made possible by using Certbot and Lets Encrypt.
+- Concepts of Functional Programming was used to make code more readable and modular.
+- A CI/CD pipeline was setup using Github Actions for Quick Deployment.
+
+# Steps to Run Locally
+- Clone the Repo on your local computer
+- Run `npm install` to install all the packages
+```bash
+npm install
+```
+- Run `npm start` to start the server locally
+```bash
+npm start
+```
+- Now you can view the server live at `http://localhost:3000`
+
+# APIs
+## `/execNode`, `/execCpp`, `execPython`
+### Request Format
+```json
+{
+  "code": "console.log(\"Hello World\");"
+}
+```
+
+### Response Format
+```json
+{
+  "isError": "true or false based on the code",
+  "output": "EXECUTION OUTPUT or ERROR",
+  "message": "Error Message if there was any"
+}
+```
+
+# Basic Architecture
+<img src="https://i.ibb.co/zbBg3xQ/Basic-Arch.png" alt="Basic Architecture" >
+
+# CI/CD Flow
+<img src="https://i.ibb.co/wM8CcgM/CI-CD-Flow.png" alt="CI CD Flow">
+
+# Hosted Link
+The server is hosted and live at [rce.manish.codes](https://rce.manish.codes)

From 900d55752cf63b46a90b910d33b896f2140a3434 Mon Sep 17 00:00:00 2001
From: Manish Kumar <manishprivet@protonmail.com>
Date: Sun, 31 Jan 2021 18:50:16 +0530
Subject: [PATCH 09/13] Fixed C++ Execution Problem

---
 index.js               | 40 ++++++++---------
 package.json           |  2 +-
 utils/executor.js      | 98 +++++++++++++++++++++++++-----------------
 utils/file-executor.js | 48 ++++++++++++---------
 utils/temp/bdqvs.js    |  1 +
 utils/temp/cimvq.js    |  2 +
 utils/temp/fiuqs.js    |  1 +
 utils/temp/gwedq.py    |  2 +
 utils/temp/juteb.cpp   |  2 +
 utils/temp/kyezm.cpp   |  2 +
 utils/temp/ljrgb.cpp   |  9 ++++
 utils/temp/odebx.cpp   |  2 +
 utils/temp/pleah.js    |  2 +
 utils/temp/qopvm.py    |  2 +
 utils/temp/rupwx.cpp   |  2 +
 utils/temp/trarb.py    |  2 +
 utils/temp/ucfvm.py    |  2 +
 utils/temp/usjsp.js    |  1 +
 utils/temp/zuqlk.js    |  2 +
 19 files changed, 139 insertions(+), 83 deletions(-)
 create mode 100644 utils/temp/bdqvs.js
 create mode 100644 utils/temp/cimvq.js
 create mode 100644 utils/temp/fiuqs.js
 create mode 100644 utils/temp/gwedq.py
 create mode 100644 utils/temp/juteb.cpp
 create mode 100644 utils/temp/kyezm.cpp
 create mode 100644 utils/temp/ljrgb.cpp
 create mode 100644 utils/temp/odebx.cpp
 create mode 100644 utils/temp/pleah.js
 create mode 100644 utils/temp/qopvm.py
 create mode 100644 utils/temp/rupwx.cpp
 create mode 100644 utils/temp/trarb.py
 create mode 100644 utils/temp/ucfvm.py
 create mode 100644 utils/temp/usjsp.js
 create mode 100644 utils/temp/zuqlk.js

diff --git a/index.js b/index.js
index d269f3e..62c3d7a 100644
--- a/index.js
+++ b/index.js
@@ -1,44 +1,42 @@
-const express = require('express');
-const cors = require('cors');
-const { execNode, execPython, execCpp } = require('./utils/executor');
+const express = require("express");
+const cors = require("cors");
+const { execNode, execPython, execCpp } = require("./utils/executor");
 const app = express();
 const PORT = process.env.PORT || 3000;
 
 app.use(express.json());
 app.use(cors());
-app.use(express.urlencoded({
-  extended: true
-}))
-app.get('/', (req, res) => {
-  res.send("First server!!")
+app.use(
+  express.urlencoded({
+    extended: true,
+  })
+);
+app.get("/", (req, res) => {
+  res.send("First server!!");
 });
-app.post("/execNode", async(req, res)=>{
-  
+app.post("/execNode", async (req, res) => {
   const data = req.body.code;
   // console.log(data);
   const output = await execNode(data);
   console.log(output);
   res.send(output);
-})
-app.post("/execPython", async(req, res)=>{
-  
+});
+app.post("/execPython", async (req, res) => {
   const data = req.body.code;
   // console.log(data);
   const output = await execPython(data);
   console.log(output);
-  
+
   res.send(output);
-})
+});
 
-app.post("/execCpp", async(req, res)=>{
-  
+app.post("/execCpp", async (req, res) => {
   const data = req.body.code;
   // console.log(data);
   const output = await execCpp(data);
   console.log(output);
   res.send(output);
-})
-app.listen(PORT, ()=>
-{
+});
+app.listen(PORT, () => {
   console.log("Server started!!");
-});
\ No newline at end of file
+});
diff --git a/package.json b/package.json
index 7e1e2ec..cb6d314 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "start": "nodemon index.js"
+    "start": "node index.js"
   },
   "repository": {
     "type": "git",
diff --git a/utils/executor.js b/utils/executor.js
index 48381bb..3567487 100644
--- a/utils/executor.js
+++ b/utils/executor.js
@@ -1,47 +1,65 @@
+const {
+  execPromise,
+  writeFilePromise,
+  deleteFilePromise,
+} = require("./file-executor.js");
 
-const { execPromise, writeFilePromise, deleteFilePromise } = require("./file-executor.js");
-
-const execNode =  async (data) => {
-    const filename = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 5);
-    const filePath = __dirname + `/temp/${filename}.js`
+const execNode = async (data) => {
+  const filename = Math.random()
+    .toString(36)
+    .replace(/[^a-z]+/g, "")
+    .substr(0, 5);
+  const filePath = __dirname + `/temp/${filename}.js`;
+  try {
+    await writeFilePromise(filePath, data);
+    const output = await execPromise(`node utils/temp/${filename}.js`, {
+      timeout: 2000,
+      maxBuffer: 1024 * 1024 * 5,
+    });
+    await deleteFilePromise(filePath);
+    return output;
+  } catch (err) {
+    return err;
+  }
+};
+const execCpp = async (data) => {
+  const filename = Math.random()
+    .toString(36)
+    .replace(/[^a-z]+/g, "")
+    .substr(0, 5);
+  const filePath = __dirname + `/temp/${filename}.cpp`;
+  try {
+    await writeFilePromise(filePath, data);
+    await execPromise(
+      `g++ -o utils/temp/${filename} utils/temp/${filename}.cpp`
+    );
+    const output = await execPromise(`utils/temp/${filename}`, {
+      timeout: 2000,
+      maxBuffer: 1024 * 1024 * 5,
+    });
+    await deleteFilePromise(filePath);
+    await deleteFilePromise(`./utils/temp/${filename}`);
+    return output;
+  } catch (err) {
+    return err;
+  }
+};
+const execPython = async (data) => {
+  const filename = Math.random()
+    .toString(36)
+    .replace(/[^a-z]+/g, "")
+    .substr(0, 5);
+  const filePath = __dirname + `/temp/${filename}.py`;
   try {
     await writeFilePromise(filePath, data);
-    const output = await execPromise(`node utils/temp/${filename}.js`);
-    // console.log(output);
+    const output = await execPromise(`python3 utils/temp/${filename}.py`, {
+      timeout: 2000,
+      maxBuffer: 1024 * 1024 * 5,
+    });
     await deleteFilePromise(filePath);
     return output;
-  } catch(err) {
-    // console.log(err);
+  } catch (err) {
     return err;
   }
-}
-const execCpp =  async (data) => {
-  const filename = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 5);
-  const filePath = __dirname + `/temp/${filename}.cpp`
-try {
-  await writeFilePromise(filePath, data);
-  const output = await execPromise(`g++ -o utils/temp/${filename} utils/temp/${filename}.cpp && ./utils/temp/${filename}`);
-  // console.log(output);
-  await deleteFilePromise(filePath);
-  await deleteFilePromise(`./utils/temp/${filename}`);
-  return output;
-} catch(err) {
-  // console.log(err);
-  return err;
-}
-}
-const execPython =  async (data) => {
-  const filename = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 5);
-  const filePath = __dirname + `/temp/${filename}.py`
-try {
-  await writeFilePromise(filePath, data);
-  const output = await execPromise(`python3 utils/temp/${filename}.py`);
-  // console.log(output);
-  await deleteFilePromise(filePath);
-  return output;
-} catch(err) {
-  // console.log(err);
-  return err;
-}
-}
-module.exports = { execNode, execPython, execCpp }
\ No newline at end of file
+};
+module.exports = { execNode, execPython, execCpp };
diff --git a/utils/file-executor.js b/utils/file-executor.js
index 85a5a31..f72db63 100644
--- a/utils/file-executor.js
+++ b/utils/file-executor.js
@@ -1,31 +1,37 @@
-const { exec } = require('child_process');
+const { exec } = require("child_process");
 const fs = require("fs");
 
-
-const execPromise = (command) => new Promise((resolve, reject) => {
-    exec(command, { timeout: 2000, maxBuffer: 1024 * 1024 * 5 }, function(error, stdout, stderr) {
+const execPromise = (command) =>
+  new Promise((resolve, reject) => {
+    exec(
+      command,
+      { timeout: 2000, maxBuffer: 1024 * 1024 * 5 },
+      function (error, stdout, stderr) {
         // console.log(stdout, stderr, error);
-        if(error) reject(JSON.stringify(error, Object.getOwnPropertyNames(error)));
+        if (error)
+          reject(JSON.stringify(error, Object.getOwnPropertyNames(error)));
         else {
-            const isError = Boolean(stderr);
-            resolve({ isError, output: stdout || stderr });
+          const isError = Boolean(stderr);
+          resolve({ isError, output: stdout || stderr });
         }
-    });
-});
+      }
+    );
+  });
 
-const writeFilePromise = (location, data) => new Promise((resolve, reject) => {
-    fs.writeFile(location, data, function(err) {
-        if(err) reject(err);
-        else resolve();
-    })
-});
+const writeFilePromise = (location, data) =>
+  new Promise((resolve, reject) => {
+    fs.writeFile(location, data, function (err) {
+      if (err) reject(err);
+      else resolve();
+    });
+  });
 
-const deleteFilePromise = (location) => new Promise((resolve, reject) => {
+const deleteFilePromise = (location) =>
+  new Promise((resolve, reject) => {
     fs.unlink(location, (err) => {
-        if(err) reject(err);
-        else resolve();
-    })
-})
-
+      if (err) reject(err);
+      else resolve();
+    });
+  });
 
 module.exports = { execPromise, writeFilePromise, deleteFilePromise };
diff --git a/utils/temp/bdqvs.js b/utils/temp/bdqvs.js
new file mode 100644
index 0000000..8e23576
--- /dev/null
+++ b/utils/temp/bdqvs.js
@@ -0,0 +1 @@
+print("Hello World")
\ No newline at end of file
diff --git a/utils/temp/cimvq.js b/utils/temp/cimvq.js
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/cimvq.js
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file
diff --git a/utils/temp/fiuqs.js b/utils/temp/fiuqs.js
new file mode 100644
index 0000000..318d154
--- /dev/null
+++ b/utils/temp/fiuqs.js
@@ -0,0 +1 @@
+console.log("Hello World";
\ No newline at end of file
diff --git a/utils/temp/gwedq.py b/utils/temp/gwedq.py
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/gwedq.py
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file
diff --git a/utils/temp/juteb.cpp b/utils/temp/juteb.cpp
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/juteb.cpp
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file
diff --git a/utils/temp/kyezm.cpp b/utils/temp/kyezm.cpp
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/kyezm.cpp
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file
diff --git a/utils/temp/ljrgb.cpp b/utils/temp/ljrgb.cpp
new file mode 100644
index 0000000..4da2965
--- /dev/null
+++ b/utils/temp/ljrgb.cpp
@@ -0,0 +1,9 @@
+//Sample Code 
+
+#include<stdio.h>
+using namespace std;
+
+int main() {
+	cout << "Hello World This is Manish" << endl;
+	return 0;
+}
\ No newline at end of file
diff --git a/utils/temp/odebx.cpp b/utils/temp/odebx.cpp
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/odebx.cpp
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file
diff --git a/utils/temp/pleah.js b/utils/temp/pleah.js
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/pleah.js
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file
diff --git a/utils/temp/qopvm.py b/utils/temp/qopvm.py
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/qopvm.py
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file
diff --git a/utils/temp/rupwx.cpp b/utils/temp/rupwx.cpp
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/rupwx.cpp
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file
diff --git a/utils/temp/trarb.py b/utils/temp/trarb.py
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/trarb.py
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file
diff --git a/utils/temp/ucfvm.py b/utils/temp/ucfvm.py
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/ucfvm.py
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file
diff --git a/utils/temp/usjsp.js b/utils/temp/usjsp.js
new file mode 100644
index 0000000..692a9c9
--- /dev/null
+++ b/utils/temp/usjsp.js
@@ -0,0 +1 @@
+swggh
\ No newline at end of file
diff --git a/utils/temp/zuqlk.js b/utils/temp/zuqlk.js
new file mode 100644
index 0000000..77ee476
--- /dev/null
+++ b/utils/temp/zuqlk.js
@@ -0,0 +1,2 @@
+//Enter your code heresf
+svb
\ No newline at end of file

From b513d7c8b479eef4b3d6679564d6d2f369f87c5f Mon Sep 17 00:00:00 2001
From: Manish Kumar <manishprivet@protonmail.com>
Date: Sun, 31 Jan 2021 18:56:45 +0530
Subject: [PATCH 10/13] Fixed C++ Execution Problem

---
 utils/executor.js    | 13 ++++++++-----
 utils/temp/bdqvs.js  |  1 -
 utils/temp/cimvq.js  |  2 --
 utils/temp/code.py   |  6 ------
 utils/temp/fiuqs.js  |  1 -
 utils/temp/gwedq.py  |  2 --
 utils/temp/hdyjo.py  |  1 -
 utils/temp/juteb.cpp |  2 --
 utils/temp/kyezm.cpp |  2 --
 utils/temp/ljrgb.cpp |  9 ---------
 utils/temp/ncqzo.py  |  1 -
 utils/temp/nmtrv.py  |  1 -
 utils/temp/odebx.cpp |  2 --
 utils/temp/pleah.js  |  2 --
 utils/temp/qopvm.py  |  2 --
 utils/temp/rupwx.cpp |  2 --
 utils/temp/trarb.py  |  2 --
 utils/temp/ucfvm.py  |  2 --
 utils/temp/usjsp.js  |  1 -
 utils/temp/vxoyc.py  |  1 -
 utils/temp/zuqlk.js  |  2 --
 21 files changed, 8 insertions(+), 49 deletions(-)
 delete mode 100644 utils/temp/bdqvs.js
 delete mode 100644 utils/temp/cimvq.js
 delete mode 100644 utils/temp/code.py
 delete mode 100644 utils/temp/fiuqs.js
 delete mode 100644 utils/temp/gwedq.py
 delete mode 100644 utils/temp/hdyjo.py
 delete mode 100644 utils/temp/juteb.cpp
 delete mode 100644 utils/temp/kyezm.cpp
 delete mode 100644 utils/temp/ljrgb.cpp
 delete mode 100644 utils/temp/ncqzo.py
 delete mode 100644 utils/temp/nmtrv.py
 delete mode 100644 utils/temp/odebx.cpp
 delete mode 100644 utils/temp/pleah.js
 delete mode 100644 utils/temp/qopvm.py
 delete mode 100644 utils/temp/rupwx.cpp
 delete mode 100644 utils/temp/trarb.py
 delete mode 100644 utils/temp/ucfvm.py
 delete mode 100644 utils/temp/usjsp.js
 delete mode 100644 utils/temp/vxoyc.py
 delete mode 100644 utils/temp/zuqlk.js

diff --git a/utils/executor.js b/utils/executor.js
index 3567487..4929e46 100644
--- a/utils/executor.js
+++ b/utils/executor.js
@@ -16,12 +16,13 @@ const execNode = async (data) => {
       timeout: 2000,
       maxBuffer: 1024 * 1024 * 5,
     });
-    await deleteFilePromise(filePath);
+    await deleteFilePromise(`./utils/temp/${filename}.js`);
     return output;
   } catch (err) {
     return err;
   }
 };
+
 const execCpp = async (data) => {
   const filename = Math.random()
     .toString(36)
@@ -33,17 +34,18 @@ const execCpp = async (data) => {
     await execPromise(
       `g++ -o utils/temp/${filename} utils/temp/${filename}.cpp`
     );
-    const output = await execPromise(`utils/temp/${filename}`, {
+    const output = await execPromise(`./utils/temp/${filename}`, {
       timeout: 2000,
       maxBuffer: 1024 * 1024 * 5,
     });
-    await deleteFilePromise(filePath);
+    await deleteFilePromise(`./utils/temp/${filename}.cpp`);
     await deleteFilePromise(`./utils/temp/${filename}`);
     return output;
   } catch (err) {
     return err;
   }
 };
+
 const execPython = async (data) => {
   const filename = Math.random()
     .toString(36)
@@ -52,14 +54,15 @@ const execPython = async (data) => {
   const filePath = __dirname + `/temp/${filename}.py`;
   try {
     await writeFilePromise(filePath, data);
-    const output = await execPromise(`python3 utils/temp/${filename}.py`, {
+    const output = await execPromise(`python3 ./utils/temp/${filename}.py`, {
       timeout: 2000,
       maxBuffer: 1024 * 1024 * 5,
     });
-    await deleteFilePromise(filePath);
+    await deleteFilePromise(`./utils/temp/${filename}.py`);
     return output;
   } catch (err) {
     return err;
   }
 };
+
 module.exports = { execNode, execPython, execCpp };
diff --git a/utils/temp/bdqvs.js b/utils/temp/bdqvs.js
deleted file mode 100644
index 8e23576..0000000
--- a/utils/temp/bdqvs.js
+++ /dev/null
@@ -1 +0,0 @@
-print("Hello World")
\ No newline at end of file
diff --git a/utils/temp/cimvq.js b/utils/temp/cimvq.js
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/cimvq.js
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file
diff --git a/utils/temp/code.py b/utils/temp/code.py
deleted file mode 100644
index 67239e7..0000000
--- a/utils/temp/code.py
+++ /dev/null
@@ -1,6 +0,0 @@
-#include <iostream> 
- #include<stdio.h> 
- using namespace std; 
- int main(){
- std::cout<<"helloo world"; 
- return 0;}
\ No newline at end of file
diff --git a/utils/temp/fiuqs.js b/utils/temp/fiuqs.js
deleted file mode 100644
index 318d154..0000000
--- a/utils/temp/fiuqs.js
+++ /dev/null
@@ -1 +0,0 @@
-console.log("Hello World";
\ No newline at end of file
diff --git a/utils/temp/gwedq.py b/utils/temp/gwedq.py
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/gwedq.py
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file
diff --git a/utils/temp/hdyjo.py b/utils/temp/hdyjo.py
deleted file mode 100644
index b746df4..0000000
--- a/utils/temp/hdyjo.py
+++ /dev/null
@@ -1 +0,0 @@
-print"helloooo"
\ No newline at end of file
diff --git a/utils/temp/juteb.cpp b/utils/temp/juteb.cpp
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/juteb.cpp
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file
diff --git a/utils/temp/kyezm.cpp b/utils/temp/kyezm.cpp
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/kyezm.cpp
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file
diff --git a/utils/temp/ljrgb.cpp b/utils/temp/ljrgb.cpp
deleted file mode 100644
index 4da2965..0000000
--- a/utils/temp/ljrgb.cpp
+++ /dev/null
@@ -1,9 +0,0 @@
-//Sample Code 
-
-#include<stdio.h>
-using namespace std;
-
-int main() {
-	cout << "Hello World This is Manish" << endl;
-	return 0;
-}
\ No newline at end of file
diff --git a/utils/temp/ncqzo.py b/utils/temp/ncqzo.py
deleted file mode 100644
index b746df4..0000000
--- a/utils/temp/ncqzo.py
+++ /dev/null
@@ -1 +0,0 @@
-print"helloooo"
\ No newline at end of file
diff --git a/utils/temp/nmtrv.py b/utils/temp/nmtrv.py
deleted file mode 100644
index 75484fa..0000000
--- a/utils/temp/nmtrv.py
+++ /dev/null
@@ -1 +0,0 @@
-print("helloooo )
\ No newline at end of file
diff --git a/utils/temp/odebx.cpp b/utils/temp/odebx.cpp
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/odebx.cpp
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file
diff --git a/utils/temp/pleah.js b/utils/temp/pleah.js
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/pleah.js
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file
diff --git a/utils/temp/qopvm.py b/utils/temp/qopvm.py
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/qopvm.py
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file
diff --git a/utils/temp/rupwx.cpp b/utils/temp/rupwx.cpp
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/rupwx.cpp
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file
diff --git a/utils/temp/trarb.py b/utils/temp/trarb.py
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/trarb.py
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file
diff --git a/utils/temp/ucfvm.py b/utils/temp/ucfvm.py
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/ucfvm.py
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file
diff --git a/utils/temp/usjsp.js b/utils/temp/usjsp.js
deleted file mode 100644
index 692a9c9..0000000
--- a/utils/temp/usjsp.js
+++ /dev/null
@@ -1 +0,0 @@
-swggh
\ No newline at end of file
diff --git a/utils/temp/vxoyc.py b/utils/temp/vxoyc.py
deleted file mode 100644
index b746df4..0000000
--- a/utils/temp/vxoyc.py
+++ /dev/null
@@ -1 +0,0 @@
-print"helloooo"
\ No newline at end of file
diff --git a/utils/temp/zuqlk.js b/utils/temp/zuqlk.js
deleted file mode 100644
index 77ee476..0000000
--- a/utils/temp/zuqlk.js
+++ /dev/null
@@ -1,2 +0,0 @@
-//Enter your code heresf
-svb
\ No newline at end of file

From efb96124431b988b836f209bae702865d11f656b Mon Sep 17 00:00:00 2001
From: Manish Kumar <manishprivet@protonmail.com>
Date: Sun, 31 Jan 2021 19:03:48 +0530
Subject: [PATCH 11/13] Fixed C++ Execution Problem

---
 utils/executor.js      |  4 ++--
 utils/file-executor.js | 20 ++++++++------------
 utils/temp/dummy       |  0
 3 files changed, 10 insertions(+), 14 deletions(-)
 create mode 100644 utils/temp/dummy

diff --git a/utils/executor.js b/utils/executor.js
index 4929e46..67fa568 100644
--- a/utils/executor.js
+++ b/utils/executor.js
@@ -12,7 +12,7 @@ const execNode = async (data) => {
   const filePath = __dirname + `/temp/${filename}.js`;
   try {
     await writeFilePromise(filePath, data);
-    const output = await execPromise(`node utils/temp/${filename}.js`, {
+    const output = await execPromise(`node ./utils/temp/${filename}.js`, {
       timeout: 2000,
       maxBuffer: 1024 * 1024 * 5,
     });
@@ -32,7 +32,7 @@ const execCpp = async (data) => {
   try {
     await writeFilePromise(filePath, data);
     await execPromise(
-      `g++ -o utils/temp/${filename} utils/temp/${filename}.cpp`
+      `g++ -o ./utils/temp/${filename} ./utils/temp/${filename}.cpp`
     );
     const output = await execPromise(`./utils/temp/${filename}`, {
       timeout: 2000,
diff --git a/utils/file-executor.js b/utils/file-executor.js
index f72db63..f3a1482 100644
--- a/utils/file-executor.js
+++ b/utils/file-executor.js
@@ -3,19 +3,15 @@ const fs = require("fs");
 
 const execPromise = (command) =>
   new Promise((resolve, reject) => {
-    exec(
-      command,
-      { timeout: 2000, maxBuffer: 1024 * 1024 * 5 },
-      function (error, stdout, stderr) {
-        // console.log(stdout, stderr, error);
-        if (error)
-          reject(JSON.stringify(error, Object.getOwnPropertyNames(error)));
-        else {
-          const isError = Boolean(stderr);
-          resolve({ isError, output: stdout || stderr });
-        }
+    exec(command, params, function (error, stdout, stderr) {
+      // console.log(stdout, stderr, error);
+      if (error)
+        reject(JSON.stringify(error, Object.getOwnPropertyNames(error)));
+      else {
+        const isError = Boolean(stderr);
+        resolve({ isError, output: stdout || stderr });
       }
-    );
+    });
   });
 
 const writeFilePromise = (location, data) =>
diff --git a/utils/temp/dummy b/utils/temp/dummy
new file mode 100644
index 0000000..e69de29

From c9f4ac0912878ea1d87bc549db22c357579dffae Mon Sep 17 00:00:00 2001
From: Manish Kumar <manishprivet@protonmail.com>
Date: Sun, 31 Jan 2021 19:20:58 +0530
Subject: [PATCH 12/13] Fixed C++ Execution Problem

---
 utils/executor.js      | 34 +++++++++++++++-------------------
 utils/file-executor.js | 27 ++++++++++++++++++---------
 2 files changed, 33 insertions(+), 28 deletions(-)

diff --git a/utils/executor.js b/utils/executor.js
index 67fa568..e21f11f 100644
--- a/utils/executor.js
+++ b/utils/executor.js
@@ -12,17 +12,15 @@ const execNode = async (data) => {
   const filePath = __dirname + `/temp/${filename}.js`;
   try {
     await writeFilePromise(filePath, data);
-    const output = await execPromise(`node ./utils/temp/${filename}.js`, {
-      timeout: 2000,
-      maxBuffer: 1024 * 1024 * 5,
-    });
-    await deleteFilePromise(`./utils/temp/${filename}.js`);
+    const output = await execPromise(`node utils/temp/${filename}.js`);
+    // console.log(output);
+    await deleteFilePromise(filePath);
     return output;
   } catch (err) {
+    // console.log(err);
     return err;
   }
 };
-
 const execCpp = async (data) => {
   const filename = Math.random()
     .toString(36)
@@ -32,20 +30,20 @@ const execCpp = async (data) => {
   try {
     await writeFilePromise(filePath, data);
     await execPromise(
-      `g++ -o ./utils/temp/${filename} ./utils/temp/${filename}.cpp`
+      `g++ -o utils/temp/${filename} utils/temp/${filename}.cpp`,
+      true
     );
-    const output = await execPromise(`./utils/temp/${filename}`, {
-      timeout: 2000,
-      maxBuffer: 1024 * 1024 * 5,
-    });
-    await deleteFilePromise(`./utils/temp/${filename}.cpp`);
+
+    const output = await execPromise(`./utils/temp/${filename}`);
+    // console.log(output);
+    await deleteFilePromise(filePath);
     await deleteFilePromise(`./utils/temp/${filename}`);
     return output;
   } catch (err) {
+    // console.log(err);
     return err;
   }
 };
-
 const execPython = async (data) => {
   const filename = Math.random()
     .toString(36)
@@ -54,15 +52,13 @@ const execPython = async (data) => {
   const filePath = __dirname + `/temp/${filename}.py`;
   try {
     await writeFilePromise(filePath, data);
-    const output = await execPromise(`python3 ./utils/temp/${filename}.py`, {
-      timeout: 2000,
-      maxBuffer: 1024 * 1024 * 5,
-    });
-    await deleteFilePromise(`./utils/temp/${filename}.py`);
+    const output = await execPromise(`python3 utils/temp/${filename}.py`);
+    // console.log(output);
+    await deleteFilePromise(filePath);
     return output;
   } catch (err) {
+    // console.log(err);
     return err;
   }
 };
-
 module.exports = { execNode, execPython, execCpp };
diff --git a/utils/file-executor.js b/utils/file-executor.js
index f3a1482..7fa4cc6 100644
--- a/utils/file-executor.js
+++ b/utils/file-executor.js
@@ -1,17 +1,26 @@
 const { exec } = require("child_process");
 const fs = require("fs");
 
-const execPromise = (command) =>
+const execPromise = (command, noBuffer = false) =>
   new Promise((resolve, reject) => {
-    exec(command, params, function (error, stdout, stderr) {
-      // console.log(stdout, stderr, error);
-      if (error)
-        reject(JSON.stringify(error, Object.getOwnPropertyNames(error)));
-      else {
-        const isError = Boolean(stderr);
-        resolve({ isError, output: stdout || stderr });
+    exec(
+      command,
+      noBuffer
+        ? {}
+        : {
+            timeout: 2000,
+            maxBuffer: 1024 * 1024 * 5,
+          },
+      function (error, stdout, stderr) {
+        // console.log(stdout, stderr, error);
+        if (error)
+          reject(JSON.stringify(error, Object.getOwnPropertyNames(error)));
+        else {
+          const isError = Boolean(stderr);
+          resolve({ isError, output: stdout || stderr });
+        }
       }
-    });
+    );
   });
 
 const writeFilePromise = (location, data) =>

From 5ec2995e0e7a5c79eee1a509d1fd8c5af32e1799 Mon Sep 17 00:00:00 2001
From: Poorvi Vaish <img_2019047@iiitm.ac.in>
Date: Mon, 31 May 2021 20:43:37 +0530
Subject: [PATCH 13/13] Added User Input Feature

---
 index.js               | 11 +++++++----
 utils/executor.js      | 21 +++++++++++++++------
 utils/file-executor.js |  2 +-
 3 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/index.js b/index.js
index 62c3d7a..396373e 100644
--- a/index.js
+++ b/index.js
@@ -2,7 +2,7 @@ const express = require("express");
 const cors = require("cors");
 const { execNode, execPython, execCpp } = require("./utils/executor");
 const app = express();
-const PORT = process.env.PORT || 3000;
+const PORT = process.env.PORT || 3001;
 
 app.use(express.json());
 app.use(cors());
@@ -16,15 +16,17 @@ app.get("/", (req, res) => {
 });
 app.post("/execNode", async (req, res) => {
   const data = req.body.code;
+  const input = req.body.input;
   // console.log(data);
-  const output = await execNode(data);
+  const output = await execNode(data, input || "");
   console.log(output);
   res.send(output);
 });
 app.post("/execPython", async (req, res) => {
   const data = req.body.code;
+  const input = req.body.input;
   // console.log(data);
-  const output = await execPython(data);
+  const output = await execPython(data, input || "");
   console.log(output);
 
   res.send(output);
@@ -32,8 +34,9 @@ app.post("/execPython", async (req, res) => {
 
 app.post("/execCpp", async (req, res) => {
   const data = req.body.code;
+  const input = req.body.input;
   // console.log(data);
-  const output = await execCpp(data);
+  const output = await execCpp(data, input ||"");
   console.log(output);
   res.send(output);
 });
diff --git a/utils/executor.js b/utils/executor.js
index e21f11f..8336446 100644
--- a/utils/executor.js
+++ b/utils/executor.js
@@ -4,57 +4,66 @@ const {
   deleteFilePromise,
 } = require("./file-executor.js");
 
-const execNode = async (data) => {
+const execNode = async (data, input="") => {
   const filename = Math.random()
     .toString(36)
     .replace(/[^a-z]+/g, "")
     .substr(0, 5);
   const filePath = __dirname + `/temp/${filename}.js`;
+  const inputPath = __dirname + `/temp/${filename}.input`;
   try {
     await writeFilePromise(filePath, data);
-    const output = await execPromise(`node utils/temp/${filename}.js`);
+    await writeFilePromise(inputPath, input);
+    const output = await execPromise(`node utils/temp/${filename}.js < utils/temp/${filename}.input`);
     // console.log(output);
     await deleteFilePromise(filePath);
+    await deleteFilePromise(inputPath);
     return output;
   } catch (err) {
     // console.log(err);
     return err;
   }
 };
-const execCpp = async (data) => {
+const execCpp = async (data, input="") => {
   const filename = Math.random()
     .toString(36)
     .replace(/[^a-z]+/g, "")
     .substr(0, 5);
   const filePath = __dirname + `/temp/${filename}.cpp`;
+  const inputPath = __dirname + `/temp/${filename}.input`;
   try {
     await writeFilePromise(filePath, data);
+    await writeFilePromise(inputPath, input);
     await execPromise(
       `g++ -o utils/temp/${filename} utils/temp/${filename}.cpp`,
       true
     );
 
-    const output = await execPromise(`./utils/temp/${filename}`);
+    const output = await execPromise(`./utils/temp/${filename} < utils/temp/${filename}.input`);
     // console.log(output);
     await deleteFilePromise(filePath);
     await deleteFilePromise(`./utils/temp/${filename}`);
+    await deleteFilePromise(inputPath);
     return output;
   } catch (err) {
     // console.log(err);
     return err;
   }
 };
-const execPython = async (data) => {
+const execPython = async (data, input="") => {
   const filename = Math.random()
     .toString(36)
     .replace(/[^a-z]+/g, "")
     .substr(0, 5);
   const filePath = __dirname + `/temp/${filename}.py`;
+  const inputPath = __dirname + `/temp/${filename}.input`;
   try {
     await writeFilePromise(filePath, data);
-    const output = await execPromise(`python3 utils/temp/${filename}.py`);
+    await writeFilePromise(inputPath, input);
+    const output = await execPromise(`python3 utils/temp/${filename}.py < utils/temp/${filename}.input`);
     // console.log(output);
     await deleteFilePromise(filePath);
+    await deleteFilePromise(inputPath);
     return output;
   } catch (err) {
     // console.log(err);
diff --git a/utils/file-executor.js b/utils/file-executor.js
index 7fa4cc6..17594af 100644
--- a/utils/file-executor.js
+++ b/utils/file-executor.js
@@ -12,7 +12,7 @@ const execPromise = (command, noBuffer = false) =>
             maxBuffer: 1024 * 1024 * 5,
           },
       function (error, stdout, stderr) {
-        // console.log(stdout, stderr, error);
+        console.log(stdout, stderr, error);
         if (error)
           reject(JSON.stringify(error, Object.getOwnPropertyNames(error)));
         else {