From d624602a1db03968d3f712b5b3c308aa7031f53f Mon Sep 17 00:00:00 2001
From: Niels Simenon <niels@unknown.name>
Date: Tue, 8 Nov 2022 22:21:43 +0100
Subject: [PATCH] Added JavaScript 'game'.

---
 package-lock.json       | 56 +++++++++++++++++++++++++++++++++++++++++
 package.json            |  1 +
 src/games/javascript.js | 49 ++++++++++++++++++++++++++++++++++++
 src/play.js             |  2 +-
 4 files changed, 107 insertions(+), 1 deletion(-)
 create mode 100644 src/games/javascript.js

diff --git a/package-lock.json b/package-lock.json
index a6278e4..e6d1828 100755
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,6 +24,7 @@
         "simple-node-logger": "^21.8.12",
         "string-similarity": "^4.0.4",
         "tensify": "^0.0.4",
+        "vm2": "^3.9.11",
         "ws": "^8.2.3",
         "yargs": "^17.2.1"
       },
@@ -3666,6 +3667,40 @@
       "integrity": "sha512-l8lCEmLcLYZh4nbunNZvQCJc5pv7+RCwa8q/LdUx8u7lsWvPDKmpodJAJNwkAhJC//dFY48KuIEmjtd4RViDrA==",
       "dev": true
     },
+    "node_modules/vm2": {
+      "version": "3.9.11",
+      "resolved": "https://registry.npmjs.org/vm2/-/vm2-3.9.11.tgz",
+      "integrity": "sha512-PFG8iJRSjvvBdisowQ7iVF580DXb1uCIiGaXgm7tynMR1uTBlv7UJlB1zdv5KJ+Tmq1f0Upnj3fayoEOPpCBKg==",
+      "dependencies": {
+        "acorn": "^8.7.0",
+        "acorn-walk": "^8.2.0"
+      },
+      "bin": {
+        "vm2": "bin/vm2"
+      },
+      "engines": {
+        "node": ">=6.0"
+      }
+    },
+    "node_modules/vm2/node_modules/acorn": {
+      "version": "8.8.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.8.1.tgz",
+      "integrity": "sha512-7zFpHzhnqYKrkYdUjF1HI1bzd0VygEGX8lFk4k5zVMqHEoES+P+7TKI+EvLO9WVMJ8eekdO0aDEK044xTXwPPA==",
+      "bin": {
+        "acorn": "bin/acorn"
+      },
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
+    "node_modules/vm2/node_modules/acorn-walk": {
+      "version": "8.2.0",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.2.0.tgz",
+      "integrity": "sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/w3c-hr-time": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/w3c-hr-time/-/w3c-hr-time-1.0.2.tgz",
@@ -6699,6 +6734,27 @@
       "integrity": "sha512-l8lCEmLcLYZh4nbunNZvQCJc5pv7+RCwa8q/LdUx8u7lsWvPDKmpodJAJNwkAhJC//dFY48KuIEmjtd4RViDrA==",
       "dev": true
     },
+    "vm2": {
+      "version": "3.9.11",
+      "resolved": "https://registry.npmjs.org/vm2/-/vm2-3.9.11.tgz",
+      "integrity": "sha512-PFG8iJRSjvvBdisowQ7iVF580DXb1uCIiGaXgm7tynMR1uTBlv7UJlB1zdv5KJ+Tmq1f0Upnj3fayoEOPpCBKg==",
+      "requires": {
+        "acorn": "^8.7.0",
+        "acorn-walk": "^8.2.0"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "8.8.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.8.1.tgz",
+          "integrity": "sha512-7zFpHzhnqYKrkYdUjF1HI1bzd0VygEGX8lFk4k5zVMqHEoES+P+7TKI+EvLO9WVMJ8eekdO0aDEK044xTXwPPA=="
+        },
+        "acorn-walk": {
+          "version": "8.2.0",
+          "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.2.0.tgz",
+          "integrity": "sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA=="
+        }
+      }
+    },
     "w3c-hr-time": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/w3c-hr-time/-/w3c-hr-time-1.0.2.tgz",
diff --git a/package.json b/package.json
index 2dddda1..59a12d7 100755
--- a/package.json
+++ b/package.json
@@ -33,6 +33,7 @@
     "simple-node-logger": "^21.8.12",
     "string-similarity": "^4.0.4",
     "tensify": "^0.0.4",
+    "vm2": "^3.9.11",
     "ws": "^8.2.3",
     "yargs": "^17.2.1"
   },
diff --git a/src/games/javascript.js b/src/games/javascript.js
new file mode 100644
index 0000000..55f808d
--- /dev/null
+++ b/src/games/javascript.js
@@ -0,0 +1,49 @@
+'use strict';
+
+const { NodeVM } = require('vm2');
+const util = require('util');
+const crypto = require('crypto');
+const timers = require('timers');
+
+const style = require('../utils/style');
+
+const vm = new NodeVM({
+	console: 'inherit',
+	sandbox: {
+		util,
+		crypto,
+		timers,
+	},
+});
+
+const vmConsole = [];
+
+vm.on('console.log', (data, ...args) => {
+	vmConsole.push(data);
+	console.log(args);
+});
+
+async function onCommand(args, context) {
+	const script = args.join(' ');
+
+	context.logger.info(`JavaScript ran by ${context.user.username}: ${script}`);
+
+	try {
+		const result = await vm.run(script, {
+			sandbox: {
+				console: {
+					log: () => console.log('console loggin!'),
+				},
+			},
+		});
+
+		context.sendMessage(`${style.green('<success>')} ${result} | ${vmConsole.join(' ')}`, context.room.id);
+	} catch (error) {
+		context.sendMessage(`${style.red(`<${error.name}>`)} ${error.message}`, context.room.id);
+	}
+}
+
+module.exports = {
+	onCommand,
+	commands: ['js', '>'],
+};
diff --git a/src/play.js b/src/play.js
index 213c04b..5ce6dd1 100755
--- a/src/play.js
+++ b/src/play.js
@@ -197,7 +197,7 @@ function getMessageRoom(message, bot) {
 
 function onMessage(message, bot, games) {
 	const body = message.originalBody || message.body;
-	const [, command, subcommand] = body?.match(new RegExp(`^${config.prefix}(\\w+)(?:\\:(\\w+))?`)) || [];
+	const [, command, subcommand] = body?.match(new RegExp(`^${config.prefix}([\\w>]+)(?:\\:(\\w+))?`)) || [];
 	const user = getMessageUser(message, bot);
 	const room = getMessageRoom(message, bot);