feat: additional validation for dynamic secret

2026-10-19 21:21:29 +00:00 · 2025-03-25 01:26:00 +05:30
parent 4adf0aa1e2
commit af5b3aa171
17 changed files with 253 additions and 33 deletions
@@ -0,0 +1,61 @@
+import { BlockList } from "node:net";
+
+import { BadRequestError } from "../errors";
+// Define BlockList instances for each range type
+const ipv4RangeLists: Record<string, BlockList> = {
+  unspecified: new BlockList(),
+  broadcast: new BlockList(),
+  multicast: new BlockList(),
+  linkLocal: new BlockList(),
+  loopback: new BlockList(),
+  carrierGradeNat: new BlockList(),
+  private: new BlockList(),
+  reserved: new BlockList()
+};
+
+// Add IPv4 CIDR ranges to each BlockList
+ipv4RangeLists.unspecified.addSubnet("0.0.0.0", 8);
+ipv4RangeLists.broadcast.addAddress("255.255.255.255");
+ipv4RangeLists.multicast.addSubnet("224.0.0.0", 4);
+ipv4RangeLists.linkLocal.addSubnet("169.254.0.0", 16);
+ipv4RangeLists.loopback.addSubnet("127.0.0.0", 8);
+ipv4RangeLists.carrierGradeNat.addSubnet("100.64.0.0", 10);
+
+// IPv4 Private ranges
+ipv4RangeLists.private.addSubnet("10.0.0.0", 8);
+ipv4RangeLists.private.addSubnet("172.16.0.0", 12);
+ipv4RangeLists.private.addSubnet("192.168.0.0", 16);
+
+// IPv4 Reserved ranges
+ipv4RangeLists.reserved.addSubnet("192.0.0.0", 24);
+ipv4RangeLists.reserved.addSubnet("192.0.2.0", 24);
+ipv4RangeLists.reserved.addSubnet("192.88.99.0", 24);
+ipv4RangeLists.reserved.addSubnet("198.18.0.0", 15);
+ipv4RangeLists.reserved.addSubnet("198.51.100.0", 24);
+ipv4RangeLists.reserved.addSubnet("203.0.113.0", 24);
+ipv4RangeLists.reserved.addSubnet("240.0.0.0", 4);
+
+/**
+ * Checks if an IP address (IPv4) is private or public
+ * inspired by: https://github.com/whitequark/ipaddr.js/blob/main/lib/ipaddr.js
+ */
+export const getIpRange = (ip: string): string => {
+  try {
+    const rangeLists = ipv4RangeLists;
+    // Check each range type
+    for (const rangeName in rangeLists) {
+      if (Object.hasOwn(rangeLists, rangeName)) {
+        if (rangeLists[rangeName].check(ip)) {
+          return rangeName;
+        }
+      }
+    }
+
+    // If no range matched, it's a public address
+    return "unicast";
+  } catch (error) {
+    throw new BadRequestError({ message: "Invalid IP address", error });
+  }
+};
+
+export const isPrivateIp = (ip: string) => getIpRange(ip) !== "unicast";