Merge pull request #562 from SidorovVladimir/feat/new_languages

#538 Language python

backend/Makefile

@@ -28,6 +28,7 @@ start-prod:
 
 build:
 	npm run build
+	docker build -t my-code-runner-python ./src/runner/dockers/python
 
 lint:
 	npm run lint

backend/src/app.service.ts

@@ -1,6 +1,7 @@
 import * as vm from 'node:vm';
 import { Console } from 'node:console';
 import { Transform } from 'node:stream';
+import { execSync } from 'node:child_process';
 import { Injectable } from '@nestjs/common';
 import { createContext } from './console/console.config';
 import { Output } from './console/interfaces/output.interface';
@@ -12,25 +13,61 @@ export class AppService {
     if (language === 'html') {
       return { terminal: [code], alertLogs: [] };
     }
+
+    if (language === 'python') {
+      const alertLogs = [];
+      try {
+        const command = `docker run --memory="256m" --cpus="1" --rm -i --read-only --user 1000:1000 my-code-runner-python python -c "${code.replace(
+          /"/g,
+          '\\"',
+        )}"`;
+        const stdout = execSync(command, {
+          stdio: 'pipe',
+          maxBuffer: 1024 * 1024,
+        }).toString();
+        const terminal = stdout.split('\n');
+        return { terminal, alertLogs };
+      } catch (error) {
+        const lineOfError = error.stack;
+        const startIndex =
+          lineOfError.indexOf('Traceback') === -1
+            ? lineOfError.indexOf('File')
+            : lineOfError.indexOf('Traceback');
+        const trimmedMessage = lineOfError
+          .slice(startIndex)
+          .split('\n')
+          .slice(0, 5)
+          .join('\n');
+        const errorMsg = `${trimmedMessage}`;
+        return { terminal: [errorMsg], alertLogs };
+      }
+    }
+
     const alertLogs = [];
     const stdout = new Transform({
       transform(chunk, enc, cb) {
         cb(null, chunk);
       },
     });
+
     const logger = new Console({ stdout });
 
     const context = createContext(logger, alertLogs);
+
     vm.createContext(context);
 
     try {
       const script = new vm.Script(code);
 
       // run the script
       script.runInContext(context);
+
       const terminal = (stdout.read() || '').toString().split('\n');
+
       return { terminal, alertLogs };
     } catch (err) {
+      // eslint-disable-next-line no-console
+      console.log(err.message);
       const lineOfError = err.stack
         .split('evalmachine.<anonymous>:')[1]
         .substring(0, 1);

backend/src/runner/dockers/python/Dockerfile

@@ -0,0 +1,3 @@
+FROM python:3-slim
+WORKDIR /app
+CMD ["python", "-c"]

package.json

@@ -18,7 +18,7 @@
     "start:backend": "yarn workspace backend run start:debug",
     "start:frontend": "yarn workspace frontend run start",
     "start": "npm-run-all --parallel start:*",
-    "test": "playwright test --trace on" 
+    "test": "playwright test --trace on"
   },
   "repository": {
     "type": "git",