Function filterUserIdsByEmail

src/modules/key.js:438–452

(key, filterEmail)

 * @return {openpgp.key.Key} The key with only matching userIds
 */
export function filterUserIdsByEmail(key, filterEmail) {
  if (!filterEmail) {
    return key;
  }
  key.users = key.users.filter(user => {
    if (!user.userID) {
      return;
    }
    const {userID: userId, name, email} = user.userID;
    const id = {userId, name, email};
    parseUserId(id);
    return id.email.toLowerCase() === filterEmail.toLowerCase();
  });
  return key;
}

/**
 * Filter out invalid keys and user IDs