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refactor: share device pair ipv4 parsing

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This commit is contained in:
Peter Steinberger
2026-03-13 22:05:12 +00:00
parent 9b24f890b2
commit 86caf454f4
1 changed files with 13 additions and 9 deletions
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22
extensions/device-pair/index.ts
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@@ -108,13 +108,21 @@ function resolveScheme(
return cfg.gateway?.tls?.enabled === true ? "wss" : "ws";
}
function isPrivateIPv4(address: string): boolean {
function parseIPv4Octets(address: string): [number, number, number, number] | null {
const parts = address.split(".");
if (parts.length != 4) {
return false;
if (parts.length !== 4) {
return null;
}
const octets = parts.map((part) => Number.parseInt(part, 10));
if (octets.some((value) => !Number.isFinite(value) || value < 0 || value > 255)) {
return null;
}
return octets as [number, number, number, number];
}
function isPrivateIPv4(address: string): boolean {
const octets = parseIPv4Octets(address);
if (!octets) {
return false;
}
const [a, b] = octets;
@@ -131,12 +139,8 @@ function isPrivateIPv4(address: string): boolean {
}
function isTailnetIPv4(address: string): boolean {
const parts = address.split(".");
if (parts.length !== 4) {
return false;
}
const octets = parts.map((part) => Number.parseInt(part, 10));
if (octets.some((value) => !Number.isFinite(value) || value < 0 || value > 255)) {
const octets = parseIPv4Octets(address);
if (!octets) {
return false;
}
const [a, b] = octets;