Fixed 267U.pre2

2026-07-26 18:25:37 +09:00
parent 50bfaeafdf
commit 317d00a284
1286 changed files with 80222 additions and 1 deletions
@@ -0,0 +1,22 @@
+import IPCIDR from "ip-cidr";
+import net from "node:net";
+function normalizeIp(ip) {
+    let normalized = ip.split(",")[0]?.trim();
+    if (!normalized) return null;
+    if (normalized.startsWith("[") && normalized.includes("]")) {
+        normalized = normalized.slice(1, normalized.indexOf("]"));
+    }
+    if (net.isIP(normalized)) return normalized;
+    const ipv4WithPort = normalized.match(/^(\d{1,3}(?:\.\d{1,3}){3}):\d+$/);
+    if (ipv4WithPort && net.isIPv4(ipv4WithPort[1])) return ipv4WithPort[1];
+    return null;
+}
+export function getIpHash(ip) {
+    const normalized = normalizeIp(ip);
+    if (!normalized) return "ip-invalid";
+    // because a single person may control many IPv6 addresses,
+    // only a /64 subnet prefix of any IP will be taken into account.
+    // (this means for IPv4 the entire address is used)
+    const prefix = IPCIDR.createAddress(normalized).mask(64);
+    return `ip-${BigInt(`0b${prefix}`).toString(36)}`;
+}