init cf worker code

test/worker/cidr.js

@@ -0,0 +1,33 @@
+
+import IPCIDR from 'ip-cidr';
+
+const chunk = '0'.repeat(1024 * 5);
+export default {
+    async fetch(request, env, ctx) {
+        const isin = checkIPInCIDR("192.168.1.1", "102.1.5.2/24");
+
+            return new Response(null, {
+                status: 101
+            });
+
+        
+    },
+};
+
+function checkIPInCIDR(ip, cidr) {
+    const cidrObject = new IPCIDR(cidr);
+  
+    // Check if the IP address is valid
+    // if (!cidrObject.isValidAddress(ip)) {
+    //   return false;
+    // }
+  
+    // Check if the IP address is within the CIDR range
+    return cidrObject.contains(ip);
+  }
+
+function delay(ms) {
+    return new Promise((resolve) => {
+        setTimeout(resolve, ms)
+    })
+}