Function get

pages/carddav.ts:5–73

({ request, user, match }: RequestHandlerParams)

import { AppConfig } from '/lib/config.ts';

async function get({ request, user, match }: RequestHandlerParams): Promise<Response> {
  const contactsConfig = await AppConfig.getContactsConfig();

  if (!contactsConfig.enableCardDavServer) {
    return new Response('Not Found', { status: 404 });
  }

  if (!user) {
    return new Response('Unauthorized', {
      status: 401,
      headers: { 'www-authenticate': 'Basic realm="bewCloud", charset="UTF-8"' },
    });
  }

  let { path } = match.pathname.groups;

  if (!path) {
    path = '/';
  }

  const userId = user.id;

  try {
    const requestBodyText = await request.clone().text();

    // Remove the `/carddav/` prefix from the hrefs in the request
    let parsedRequestBodyText: string | undefined = requestBodyText.replaceAll('<href>/carddav/', `<href>/`).replaceAll(
      ':href>/carddav/',
      `:href>/`,
    );

    // The spec doesn't allow a body for GET or HEAD requests (and Deno fails if you try)
    if (request.method === 'GET' || request.method === 'HEAD') {
      parsedRequestBodyText = undefined;
    }

    const originalRequestHeaders = { ...Object.fromEntries(request.headers.entries()) };

    const response = await fetch(`${contactsConfig.cardDavUrl}/${path}`, {
      headers: {
        ...originalRequestHeaders,
        'X-Remote-User': `${userId}`,
      },
      method: request.method,
      body: parsedRequestBodyText,
    });

    if (response.status === 204) {
      return new Response(null, { status: 204 });
    }

    const responseBodyText = await response.clone().text();

    // Add the `/carddav/` prefix to the hrefs in the response
    const parsedBodyResponseText = responseBodyText.replaceAll('<href>/', `<href>/carddav/`).replaceAll(
      ':href>/',
      `:href>/carddav/`,
    );