Function serveRawFile

packages/unpkg-esm/src/request-handler.ts:323–348

(env: Env, packageName: string, version: string, filename: string)

}

async function serveRawFile(env: Env, packageName: string, version: string, filename: string): Promise<Response> {
  let rawResponse = await fetch(new URL(`/file/${packageName}@${version}${filename}`, env.FILES_ORIGIN));
  if (!rawResponse.ok) {
    return jsonError({
      code: "RAW_FILE_NOT_FOUND",
      message: await rawResponse.text(),
      status: rawResponse.status,
    });
  }

  let headers = new Headers(rawResponse.headers);
  if (isTypeDeclarationPath(filename)) {
    headers.set("Content-Type", "application/typescript; charset=utf-8");
  } else if (isCssPath(filename)) {
    headers.set("Content-Type", "text/css; charset=utf-8");
  }
  for (let [name, value] of Object.entries(corsHeaders())) {
    headers.set(name, value);
  }

  return new Response(await rawResponse.arrayBuffer(), {
    status: rawResponse.status,
    statusText: rawResponse.statusText,
    headers,
  });
}

async function serveCssModule(env: Env, packageName: string, version: string, filename: string): Promise<Response> {
  let response = await serveRawFile(env, packageName, version, filename);