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bot/commands/eval.js

@@ -0,0 +1,90 @@
+/* eslint-disable no-param-reassign */
+/* eslint-disable global-require */
+/* eslint-disable no-extend-native */
+/* eslint-disable no-eval */
+module.exports = {
+    command: 'eval',
+    description: 'evaluate and execute javascript',
+    syntax: '{PREFIX}eval [code]',
+    execute: async (_this, msg, args) => {
+        String.prototype.charLimitSplit = number => {
+            if (typeof number !== 'number') {
+                // eslint-disable-next-line no-param-reassign
+                number = parseInt(number, 10);
+            }
+            const newSplit = [];
+            if (this.length > number) {
+                const splitRegex = new RegExp(`.{1,${number}}`, 'g');
+                const splitStr = this.match(splitRegex);
+                for (let i = 0; i < splitStr.length; i++) {
+                    newSplit.push(splitStr[i]);
+                }
+                return newSplit;
+            }
+        };
+        const code = args.join(' ');
+        async function success(input, output) {
+            msg.channel.createMessage({
+                embed: {
+                    color: 0x36393E,
+                    fields: [{
+                        name: 'Input',
+                        value: `\`\`\`JS\n${input}\`\`\``,
+                    }, {
+                        name: 'Output',
+                        value: `\`\`\`JS\n${output} | ... |\`\`\``,
+                    }],
+                },
+            });
+        }
+        async function error(input, output) {
+            msg.channel.createMessage({
+                embed: {
+                    color: 0x36393E,
+                    fields: [{
+                        name: 'Input',
+                        value: `\`\`\`JS\n${input}\`\`\``,
+                    }, {
+                        name: 'Error Output',
+                        value: `\`\`\`JS\n${output}\`\`\``,
+                    }],
+                },
+            });
+        }
+        function clean(text) {
+            if (typeof (text) === 'string') {
+                text = text.replace(/`/g, `\`${String.fromCharCode(8203)}`).replace(/@/g, `@${String.fromCharCode(8203)}`);
+                const tokenObj = new RegExp(`${Buffer.from(_this.bot.user.id).toString('base64')}\\S+(?="|'|\`)`, 'gm');
+                const tokenRaw = new RegExp(`${Buffer.from(_this.bot.user.id).toString('base64')}\\S+`, 'gm');
+                if (text.match(tokenObj)) {
+                    text = text.replace(tokenObj, 'Token Cleaned');
+                    return text;
+                } if (text.match(tokenRaw)) {
+                    text = text.replace(tokenRaw, 'Token Cleaned');
+                    return text;
+                }
+                return text;
+            }
+            return text;
+        }
+        try {
+            let evaled = eval(code);
+            if (typeof evaled !== 'string') {
+                evaled = require('util').inspect(evaled, {
+                    breakLength: Infinity,
+                });
+            }
+            if (evaled.length > 1000) {
+                const output = clean(evaled).charLimitSplit(1000);
+                return success(code, output[0]);
+            }
+            return success(code, clean(evaled));
+        } catch (err) {
+            if (err.length > 1000) {
+                const errorSplit = err.charLimitSplit(1000);
+                return error(code, errorSplit);
+            }
+            return error(code, clean(err));
+        }
+    },
+};