Created the server authentication action

socket/actions.js

@@ -0,0 +1,20 @@
+const {getServerByToken} = require("../controller/link");
+
+// Authenticates the server by a token
+module.exports.authenticateServer = async (client, data) => {
+    if (!data.token) return;
+
+    const server = await getServerByToken(data.token);
+    if (!server) {
+        client.send(JSON.stringify({code: 2, message: "Authentication failed"}));
+        return;
+    }
+
+    if (!server.linked)
+        await server.updateOne({linked: true}).exec();
+
+    if (!server.online)
+        await server.updateOne({online: true}).exec();
+
+    return server;
+}