Function lookup

src/modules/openpgpKeyServer.js:31–62

(query)

 * @yield {String|undefined} Armored key with matching uid. Undefined if no key was found.
 */
export async function lookup(query) {
  let armoredKey;
  if (!query) {
    throw new Error('openpgpKeyServer: Skipping lookup without query.');
  }
  const response = await self.fetch(url(query));
  if (response.status === 200) {
    armoredKey = await response.text();
  }
  if (!armoredKey) {
    return;
  }
  // Only the userid matching the email should be imported.
  // This avoids usability problems and potential security issues
  // when unreleated userids are also part of the key.
  let key;
  try {
    key = await readKey({armoredKey});
  } catch (e) {
    throw new Error(`openpgpKeyServer: Failed to parse response '${armoredKey}': ${e.message}`);
  }
  const filtered = filterUserIdsByEmail(key, query.email);
  if (!filtered.users.length) {
    throw new Error(`openpgpKeyServer: Response '${armoredKey}': contained no matching userIds.`);
  }
  console.log(`openpgpKeyServer: fetched key: '${filtered.getFingerprint()}'`);
  const result = {
    armored: filtered.armor(),
    date: new Date()
  };
  return result;
}

/**
 * Helper function to create a url with the proper path for an api request.