Allow file to be uploaded. Closes #3

config.example.json

@@ -3,5 +3,6 @@
     "token": "MTU1fdsYNTRb2RT.FcD2l1ig.jIuKqwertyd432RROhF5A",
     "prefix": "$>",
     "codePrefix": "$>",
+    "maxFileSize": 10240,
     "myriad": "8081"
 }

src/listeners/messageInvalid.js

@@ -16,7 +16,7 @@ class MessageInvalidListener extends Listener {
             return null;
         }
 
-        const parse = this.parseMessage(message);
+        const parse = await this.parseMessage(message);
         if (!parse) {
             return null;
         }
@@ -62,14 +62,22 @@ class MessageInvalidListener extends Listener {
         return message.util.send(output);
     }
 
-    parseMessage(message) {
+    async parseMessage(message) {
         const prefix = this.client.config.codePrefix;
         const starts = message.content.slice(0, prefix.length).toLowerCase().startsWith(prefix.toLowerCase());
         if (!starts) {
             return null;
         }
 
-        const regex = /^\s*(`{1,3})(.+?)[ \n]([^]+)\1\s*$/;
+        let file = null;
+        let regex = "";
+
+        if (file = message.attachments.first()) {
+            regex = /^\s*(`{1})(.+)(`{1})\s*$/;
+        } else {
+            regex = /^\s*(`{1,3})(.+?)[ \n]([^]+)\1\s*$/;
+        }
+
         const match = message.content.slice(prefix.length).match(regex);
         if (!match) {
             return null;
@@ -80,7 +88,18 @@ class MessageInvalidListener extends Listener {
             return null;
         }
 
-        const code = match[3].trim();
+        let code = "";
+
+        if (file) {
+            if (file.size > this.client.config.maxFileSize) {
+                return null;
+            }
+            code = await fetch(file.url)
+                .then(res => res.text());
+        } else {
+            code = match[3].trim();
+        }
+
         return { language, code };
     }
 }