Create url.ts

src/url.ts

@@ -0,0 +1,72 @@
+import { URL } from "node:url";
+
+type Protocol = "http" | "https";
+const DEFAULT_PORTS: Record<Protocol, string> = { http: "80", https: "443" };
+
+export function buildUrl(
+  hostname: string,
+  pathname: string,
+  protocol: Protocol = "https",
+  port?: string | number,
+  params?: Record<string, string>,
+): string {
+  const url = new URL(`${protocol}://${hostname}`);
+  url.port = port?.toString() || DEFAULT_PORTS[protocol];
+  url.pathname = `/${pathname.replace(/^\/+/, "")}`;
+
+  if (params) {
+    for (const [key, value] of Object.entries(params)) {
+      url.searchParams.set(key, value);
+    }
+  }
+  return url.href;
+}
+
+export function gitHubAssetDownloadUrl(
+  owner: string,
+  repo: string,
+  tag: string,
+  asset: string,
+): string {
+  const rawOpts: string[] = [owner, repo, "releases", "download", tag, asset];
+  const encoded = rawOpts.map(encodeURIComponent);
+  return buildUrl("github.com", encoded.join("/"), "https");
+}
+
+export function isGitHub(url: string, api: boolean = false): boolean {
+  const parsedUrl = new URL(url);
+  if (api) {
+    return "api.github.com" === parsedUrl.hostname;
+  }
+
+  return "github.com" === parsedUrl.hostname;
+}
+
+export const getVksUrl = (host: string, fp: string) =>
+  buildUrl(
+    host,
+    `/vks/v1/by-fingerprint/${fp.replace(/\s/g, "").toUpperCase()}`,
+  );
+
+export const getHkpUrl = (host: string, fp: string, port?: number) =>
+  buildUrl(host, "/pks/lookup", port === 11371 ? "http" : "https", port, {
+    op: "get",
+    options: "mr",
+    search: `0x${fp.replace(/\s/g, "").toLowerCase()}`,
+  });
+
+export const getGitHubGpgUrl = (user: string) =>
+  buildUrl("github.com", `/${user.replace(/^@/, "")}.gpg`);
+
+export const getGitHubManifestUrl = (
+  owner: string,
+  repo: string,
+  tag: string,
+  asset: string,
+) =>
+  buildUrl(
+    "github.com",
+    [owner, repo, "releases", "download", tag, asset]
+      .map(encodeURIComponent)
+      .join("/"),
+  );