astro/dist/core/redirects/render.js

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

function redirectIsExternal(redirect) {
  if (typeof redirect === "string") {
    return redirect.startsWith("http://") || redirect.startsWith("https://");
  } else {
    return redirect.destination.startsWith("http://") || redirect.destination.startsWith("https://");
  }
}
async function renderRedirect(renderContext) {
  const {
    request: { method },
    routeData
  } = renderContext;
  const { redirect, redirectRoute } = routeData;
  const status = redirectRoute && typeof redirect === "object" ? redirect.status : method === "GET" ? 301 : 308;
  const headers = { location: encodeURI(redirectRouteGenerate(renderContext)) };
  if (redirect && redirectIsExternal(redirect)) {
    if (typeof redirect === "string") {
      return Response.redirect(redirect, status);
    } else {
      return Response.redirect(redirect.destination, status);
    }
  }
  return new Response(null, { status, headers });
}
function redirectRouteGenerate(renderContext) {
  const {
    params,
    routeData: { redirect, redirectRoute }
  } = renderContext;
  if (typeof redirectRoute !== "undefined") {
    return redirectRoute?.generate(params) || redirectRoute?.pathname || "/";
  } else if (typeof redirect === "string") {
    if (redirectIsExternal(redirect)) {
      return redirect;
    } else {
      let target = redirect;
      for (const param of Object.keys(params)) {
        const paramValue = params[param];
        target = target.replace(`[${param}]`, paramValue).replace(`[...${param}]`, paramValue);
      }
      return target;
    }
  } else if (typeof redirect === "undefined") {
    return "/";
  }
  return redirect.destination;
}
export {
  redirectIsExternal,
  renderRedirect
};