Initial commit

.eslintrc.json

@@ -0,0 +1,234 @@
+{
+    "extends": "eslint:recommended",
+    "parserOptions": {
+        "ecmaVersion": 9
+    },
+    "env": {
+        "es6": true,
+        "node": true
+    },
+    "rules": {
+        "no-await-in-loop": "warn",
+        "no-extra-parens": [
+            "warn",
+            "all",
+            {
+                "nestedBinaryExpressions": false
+            }
+        ],
+        "no-template-curly-in-string": "error",
+        "no-unsafe-negation": "error",
+        "valid-jsdoc": [
+            "error",
+            {
+                "requireReturn": true,
+                "requireReturnDescription": false,
+                "prefer": {
+                    "return": "returns",
+                    "arg": "param"
+                },
+                "preferType": {
+                    "String": "string",
+                    "Number": "number",
+                    "Boolean": "boolean",
+                    "object": "Object",
+                    "function": "Function",
+                    "array": "Array",
+                    "date": "Date",
+                    "error": "Error",
+                    "null": "void"
+                }
+            }
+        ],
+        "accessor-pairs": "warn",
+        "array-callback-return": "error",
+        "complexity": [
+            "warn",
+            25
+        ],
+        "consistent-return": "error",
+        "curly": [
+            "error",
+            "multi-line",
+            "consistent"
+        ],
+        "dot-location": [
+            "error",
+            "property"
+        ],
+        "dot-notation": "error",
+        "eqeqeq": [
+            "error",
+            "smart"
+        ],
+        "no-console": "warn",
+        "no-empty-function": "error",
+        "no-floating-decimal": "error",
+        "no-implied-eval": "error",
+        "no-invalid-this": "error",
+        "no-lone-blocks": "error",
+        "no-multi-spaces": "error",
+        "no-new-func": "error",
+        "no-new-wrappers": "error",
+        "no-new": "error",
+        "no-octal-escape": "error",
+        "no-return-assign": "error",
+        "no-return-await": "error",
+        "no-self-compare": "error",
+        "no-sequences": "error",
+        "no-throw-literal": "error",
+        "no-unmodified-loop-condition": "error",
+        "no-unused-expressions": "error",
+        "no-useless-call": "error",
+        "no-useless-concat": "error",
+        "no-useless-escape": "error",
+        "no-useless-return": "error",
+        "no-void": "error",
+        "no-warning-comments": "warn",
+        "require-await": "warn",
+        "wrap-iife": "error",
+        "yoda": "error",
+        "no-label-var": "error",
+        "no-shadow": "error",
+        "no-undef-init": "error",
+        "callback-return": "error",
+        "handle-callback-err": "error",
+        "no-mixed-requires": "error",
+        "no-new-require": "error",
+        "no-path-concat": "error",
+        "array-bracket-spacing": "error",
+        "block-spacing": "error",
+        "brace-style": [
+            "error",
+            "1tbs",
+            {
+                "allowSingleLine": true
+            }
+        ],
+        "capitalized-comments": [
+            "error",
+            "always",
+            {
+                "ignoreConsecutiveComments": true
+            }
+        ],
+        "comma-dangle": [
+            "error",
+            "never"
+        ],
+        "comma-spacing": "error",
+        "comma-style": "error",
+        "computed-property-spacing": "error",
+        "consistent-this": [
+            "error",
+            "$this"
+        ],
+        "eol-last": "error",
+        "func-names": "error",
+        "func-name-matching": "error",
+        "func-style": [
+            "error",
+            "declaration",
+            {
+                "allowArrowFunctions": true
+            }
+        ],
+        "indent": [
+            "error",
+            4,
+            {
+                "MemberExpression": 1
+            }
+        ],
+        "key-spacing": "error",
+        "keyword-spacing": "error",
+        "max-depth": [
+            "error",
+            7
+        ],
+        "max-nested-callbacks": [
+            "error",
+            {
+                "max": 4
+            }
+        ],
+        "max-statements-per-line": [
+            "error",
+            {
+                "max": 2
+            }
+        ],
+        "new-cap": "error",
+        "no-array-constructor": "error",
+        "no-inline-comments": "error",
+        "no-lonely-if": "error",
+        "no-mixed-operators": "error",
+        "no-multiple-empty-lines": [
+            "error",
+            {
+                "max": 2,
+                "maxEOF": 1,
+                "maxBOF": 0
+            }
+        ],
+        "no-new-object": "error",
+        "no-spaced-func": "error",
+        "no-trailing-spaces": "error",
+        "no-unneeded-ternary": "error",
+        "no-whitespace-before-property": "error",
+        "object-curly-spacing": [
+            "error",
+            "always"
+        ],
+        "operator-assignment": "error",
+        "operator-linebreak": [
+            "error",
+            "before"
+        ],
+        "padded-blocks": [
+            "error",
+            "never"
+        ],
+        "quote-props": [
+            "error",
+            "as-needed"
+        ],
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "semi-spacing": "error",
+        "semi": "error",
+        "space-before-blocks": "error",
+        "space-before-function-paren": [
+            "error",
+            {
+                "anonymous": "always",
+                "named": "never",
+                "asyncArrow": "always"
+            }
+        ],
+        "space-in-parens": "error",
+        "space-infix-ops": "error",
+        "space-unary-ops": "error",
+        "spaced-comment": "error",
+        "unicode-bom": "error",
+        "arrow-parens": [
+            "error",
+            "as-needed"
+        ],
+        "arrow-spacing": "error",
+        "no-duplicate-imports": "error",
+        "no-useless-computed-key": "error",
+        "no-useless-constructor": "error",
+        "prefer-const": "error",
+        "prefer-arrow-callback": "error",
+        "prefer-numeric-literals": "error",
+        "prefer-rest-params": "error",
+        "prefer-spread": "error",
+        "prefer-template": "error",
+        "rest-spread-spacing": "error",
+        "template-curly-spacing": "error",
+        "yield-star-spacing": "error"
+    }
+}

.gitattributes

@@ -0,0 +1 @@
+* text=auto eol=lf

.gitignore

@@ -0,0 +1,4 @@
+node_modules
+.git
+.vscode
+config.json

.npmignore

@@ -0,0 +1,6 @@
+# NPM
+.eslintrc.json
+.gitattributes
+.gitignore
+tsconfig.json
+tslint.json

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 1Computer1
+
+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

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+# Comp_iler
+
+Sandboxed code execution discord bot.
+
+## Usage
+
+### Code Blocks
+
+````
+>```lang
+code
+```
+````
+
+With options:
+
+````
+>[options]```lang
+code
+```
+````
+
+### Inline Code
+
+```
+>`lang code`
+```
+
+With options:
+
+````
+>[options]`lang code`
+````
+
+Where `lang` is a language code and `options` is a list of options.
+
+### Examples
+
+````
+>```hs
+main :: IO ()
+main = print 1
+```
+````
+
+````
+>[harmony]```js
+class Foo {
+    bar = 1;
+}
+
+console.log(new Foo().bar);
+```
+````
+
+```
+>`py print('hello world')`
+```
+
+## Supported Languages
+
+One of the following languages is set in `lang`.
+
+- `js` JavaScript (Node 10.14.2)
+- `py` Python (CPython 3.6.8)
+- `hs` Haskell (GHC 8.4.3)
+
+## Options
+
+Options are optionally set in `options`, which is a semicolon-delimited list of `flag` or `flag=value`. 
+
+For JavaScript:
+- `harmony` enables harmony features (`--harmony` on node)
+
+For Python:
+- None
+
+For Haskell:
+- None
+
+## Packages
+
+Apart from the standard libraries, some other libraries come pre-installed.
+
+For JavaScript:
+- Node libraries
+- lodash
+- moment
+- cheerio
+
+For Python:
+- numpy
+
+For Haskell:
+- GHC libraries
+- aeson
+- async
+- attoparsec
+- integer-logarithms
+- megaparsec
+- random
+- scientific
+- split
+- vector

config.example.json

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+{
+    "token": "123"
+}

docker/haskell/Dockerfile

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+FROM alpine
+LABEL author="1Computer1"
+
+RUN apk update
+RUN apk add build-base wget ghc cabal
+RUN cabal update
+RUN cabal install aeson async attoparsec integer-logarithms megaparsec random scientific split vector
+
+COPY run.sh /var/run/
+WORKDIR /var/ws

docker/haskell/run.sh

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+echo "$1" > program.hs
+ghc -O0 -j +RTS -A128m -n2m -RTS program.hs >/dev/null && ./program

docker/javascript/Dockerfile

@@ -0,0 +1,9 @@
+FROM alpine
+LABEL author="1Computer1"
+
+RUN apk update
+RUN apk add nodejs npm
+RUN npm i lodash moment cheerio
+
+COPY run.sh /var/run/
+WORKDIR /var/ws

docker/javascript/run.sh

@@ -0,0 +1,5 @@
+if [ "$EVAL_HARMONY" = "true" ]; then
+    node --harmony -e "$1"
+else
+    node -e "$1"
+fi

docker/python/Dockerfile

@@ -0,0 +1,10 @@
+FROM alpine
+LABEL author="1Computer1"
+
+RUN apk update
+RUN apk add build-base python3 python3-dev
+RUN python3 -m pip install -U pip
+RUN python3 -m pip install -U numpy
+
+COPY run.sh /var/run/
+WORKDIR /var/ws

docker/python/run.sh

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+echo "$1" > program.py
+python3 program.py

index.js

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+const CompilerClient = require('./src/struct/CompilerClient');
+const config = require('./config.json');
+const client = new CompilerClient(config);
+client.once('ready', () => console.log('Comp_iler ready to go!'));
+client.start();

package-lock.json

@@ -0,0 +1,1056 @@
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+  "name": "comp_iler",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
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+      "requires": {
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+      }
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+      "dev": true,
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+        "esutils": "^2.0.2",
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+      }
+    }
+  }
+}

package.json

@@ -0,0 +1,16 @@
+{
+  "name": "comp_iler",
+  "version": "1.0.0",
+  "description": "Sandboxed eval bot",
+  "main": "index.js",
+  "author": "1Computer1",
+  "license": "MIT",
+  "dependencies": {
+    "discord-akairo": "^8.0.0-beta.1",
+    "discord.js": "github:discordjs/discord.js",
+    "node-fetch": "^2.3.0"
+  },
+  "devDependencies": {
+    "eslint": "^5.15.1"
+  }
+}

src/commands/about.js

@@ -0,0 +1,15 @@
+const { Command } = require('discord-akairo');
+
+class AboutCommand extends Command {
+    constructor() {
+        super('about', {
+            aliases: ['about']
+        });
+    }
+
+    exec(message) {
+        return message.util.send('I do things!');
+    }
+}
+
+module.exports = AboutCommand;

src/commands/help.js

@@ -0,0 +1,15 @@
+const { Command } = require('discord-akairo');
+
+class HelpCommand extends Command {
+    constructor() {
+        super('help', {
+            aliases: ['help']
+        });
+    }
+
+    exec(message) {
+        return message.util.send('Maybe later.');
+    }
+}
+
+module.exports = HelpCommand;

src/commands/ping.js

@@ -0,0 +1,15 @@
+const { Command } = require('discord-akairo');
+
+class PingCommand extends Command {
+    constructor() {
+        super('ping', {
+            aliases: ['ping']
+        });
+    }
+
+    exec(message) {
+        return message.util.send('Pong!');
+    }
+}
+
+module.exports = PingCommand;

src/languages/haskell.js

@@ -0,0 +1,12 @@
+const Language = require('../struct/Language');
+
+class Haskell extends Language {
+    constructor() {
+        super('haskell', {
+            highlight: 'hs',
+            aliases: ['haskell', 'hs']
+        });
+    }
+}
+
+module.exports = Haskell;

src/languages/javascript.js

@@ -0,0 +1,23 @@
+const Language = require('../struct/Language');
+
+class JavaScript extends Language {
+    constructor() {
+        super('javaScript', {
+            highlight: 'js',
+            aliases: ['javaScript', 'js'],
+            options: {
+                harmony: () => true
+            }
+        });
+    }
+
+    runWith(options) {
+        if (options.has('harmony')) {
+            return { id: this.id, env: { EVAL_HARMONY: 'true' } };
+        }
+
+        return { id: this.id, env: {} };
+    }
+}
+
+module.exports = JavaScript;

src/languages/python.js

@@ -0,0 +1,12 @@
+const Language = require('../struct/Language');
+
+class Python extends Language {
+    constructor() {
+        super('python', {
+            highlight: 'py',
+            aliases: ['python', 'py']
+        });
+    }
+}
+
+module.exports = Python;

src/listeners/error.js

@@ -0,0 +1,22 @@
+const { Listener } = require('discord-akairo');
+
+class ErrorListener extends Listener {
+    constructor() {
+        super('error', {
+            emitter: 'commandHandler',
+            event: 'error',
+            category: 'commandHandler'
+        });
+    }
+
+    exec(message, err) {
+        message.util.send([
+            'An error occured:',
+            '```',
+            err.toString(),
+            '```'
+        ]);
+    }
+}
+
+module.exports = ErrorListener;

src/listeners/messageInvalid.js

@@ -0,0 +1,72 @@
+const { Listener } = require('discord-akairo');
+const fetch = require('node-fetch');
+
+class MessageInvalidListener extends Listener {
+    constructor() {
+        super('messageInvalid', {
+            emitter: 'commandHandler',
+            event: 'messageInvalid',
+            category: 'commandHandler'
+        });
+    }
+
+    async exec(message) {
+        const parse = this.parseMessage(message);
+        if (!parse) {
+            return null;
+        }
+
+        const result = await this.client.languageHandler.evalCode(message, parse)
+            .catch(e => e.message) || '\n';
+
+        const output = `\`\`\`${parse.language.highlight}\n${result}\`\`\``;
+        if (output.length >= 2000) {
+            const key = await fetch('https://hastebin.com/documents', { method: 'POST', body: result })
+                .then(res => res.json())
+                .then(json => json.key);
+
+            return message.util.send(`https://hastebin.com/${key}.js`);
+        }
+
+        return message.util.send(output);
+    }
+
+    parseMessage(message) {
+        const regex1 = /^\s*>\s*(?:\[(.+?)\])?\s*```(.+?)\n([^]+)```\s*$/;
+        const regex2 = /^\s*>\s*(?:\[(.+?)\])?\s*`(.+?) \s*([^]+)`\s*$/;
+        const match = message.content.match(regex1) || message.content.match(regex2);
+        if (!match) {
+            return null;
+        }
+
+        const language = this.parseLanguage(match[2]);
+        if (!language) {
+            return null;
+        }
+
+        const code = match[3].trim();
+        const options = this.parseOptions(language, match[1] || '');
+        return { id: message.id, language, code, options };
+    }
+
+    parseLanguage(language) {
+        const match = this.client.languageHandler.findLanguage(language.trim());
+        if (!match) {
+            return null;
+        }
+
+        return match;
+    }
+
+    parseOptions(language, options) {
+        return new Map(options.split(';')
+            .map(opt => {
+                const [k, v = ''] = opt.split('=');
+                return [k.toLowerCase().trim(), v.trim()];
+            })
+            .filter(([key, value]) =>
+                Object.prototype.hasOwnProperty.call(language.options, key) && language.options[key](value)));
+    }
+}
+
+module.exports = MessageInvalidListener;

src/struct/CompilerClient.js

@@ -0,0 +1,50 @@
+const { AkairoClient, CommandHandler, ListenerHandler } = require('discord-akairo');
+const LanguageHandler = require('./LanguageHandler');
+const path = require('path');
+
+class CompilerClient extends AkairoClient {
+    constructor(config) {
+        super({
+            ownerID: config.owner
+        }, {
+            disabledEveryone: true,
+            disabledEvents: ['TYPING_START']
+        });
+
+        this.commandHandler = new CommandHandler(this, {
+            directory: path.join(__dirname, '../commands'),
+            prefix: '>',
+            allowMention: true,
+            commandUtil: true,
+            commandUtilLifetime: 3e5,
+            handleEdits: true
+        });
+
+        this.listenerHandler = new ListenerHandler(this, {
+            directory: path.join(__dirname, '../listeners')
+        });
+
+        this.languageHandler = new LanguageHandler(this, {
+            directory: path.join(__dirname, '../languages')
+        });
+
+        this.config = config;
+    }
+
+    start() {
+        this.commandHandler.useListenerHandler(this.listenerHandler);
+        this.listenerHandler.setEmitters({
+            commandHandler: this.commandHandler,
+            listenerHandler: this.listenerHandler,
+            languageHandler: this.languageHandler
+        });
+
+        this.commandHandler.loadAll();
+        this.listenerHandler.loadAll();
+        this.languageHandler.loadAll();
+        this.languageHandler.buildDocker();
+        return this.login(this.config.token);
+    }
+}
+
+module.exports = CompilerClient;

src/struct/Language.js

@@ -0,0 +1,22 @@
+const { AkairoModule } = require('discord-akairo');
+
+class Language extends AkairoModule {
+    constructor(id, {
+        category,
+        highlight,
+        aliases,
+        options = {}
+    } = {}) {
+        super(id, { category });
+
+        this.highlight = highlight;
+        this.aliases = aliases;
+        this.options = options;
+    }
+
+    runWith() {
+        return { id: this.id, env: {} };
+    }
+}
+
+module.exports = Language;

src/struct/LanguageHandler.js

@@ -0,0 +1,107 @@
+const { AkairoHandler } = require('discord-akairo');
+const { Collection } = require('discord.js');
+const Language = require('./Language');
+const childProcess = require('child_process');
+
+class LanguageHandler extends AkairoHandler {
+    constructor(client, {
+        directory,
+        classToHandle = Language,
+        extensions = ['.js', '.ts'],
+        automateCategories,
+        loadFilter
+    }) {
+        super(client, {
+            directory,
+            classToHandle,
+            extensions,
+            automateCategories,
+            loadFilter
+        });
+
+        this.aliases = new Collection();
+    }
+
+    register(language, filepath) {
+        super.register(language, filepath);
+
+        for (let alias of language.aliases) {
+            const conflict = this.aliases.get(alias.toLowerCase());
+            if (conflict) throw new TypeError(`Alias conflict of ${alias} between ${language.id} and ${conflict}`);
+
+            alias = alias.toLowerCase();
+            this.aliases.set(alias, language.id);
+        }
+    }
+
+    deregister(language) {
+        for (let alias of language.aliases) {
+            alias = alias.toLowerCase();
+            this.aliases.delete(alias);
+        }
+
+        super.deregister(language);
+    }
+
+    findLanguage(alias) {
+        return this.modules.get(this.aliases.get(alias.toLowerCase()));
+    }
+
+    buildDocker() {
+        for (const [, { id }] of this.modules) {
+            childProcess.execSync(`docker build -t "1computer1/comp_iler:${id}" ./docker/${id}`);
+        }
+    }
+
+    evalCode(message, { language, code, options }) {
+        return new Promise((resolve, reject) => {
+            const name = `comp_iler-${message.id}-${Date.now()}`;
+            const { id, env } = language.runWith(options);
+            const proc = childProcess.spawn('docker', [
+                'run', '--rm', `--name=${name}`,
+                '--net=none', '--cpus=0.5', '-m=256m',
+                ...Object.entries(env).map(([k, v]) => `-e${k}=${v}`),
+                `1computer1/comp_iler:${id}`,
+                '/bin/sh', '/var/run/run.sh', code
+            ]);
+
+            setTimeout(() => {
+                try {
+                    if (process.platform === 'win32') {
+                        childProcess.execSync(`docker kill --signal=9 ${name} >nul 2>nul`);
+                    } else {
+                        childProcess.execSync(`docker kill --signal=9 ${name} >/dev/null 2>/dev/nul`);
+                    }
+
+                    reject(new Error('Evaluation timed out'));
+                } catch (e) {
+                    reject(e);
+                }
+            }, 10000);
+
+            let data = '';
+            proc.stdout.on('data', chunk => {
+                data += chunk;
+            });
+
+            proc.stderr.on('data', chunk => {
+                data += chunk;
+            });
+
+            proc.on('error', error => {
+                error.data = data;
+                reject(error);
+            });
+
+            proc.on('exit', status => {
+                if (status !== 0) {
+                    reject(new Error(data));
+                } else {
+                    resolve(data);
+                }
+            });
+        });
+    }
+}
+
+module.exports = LanguageHandler;