def add_alias(author: Union[AccountId, str], account: Union[AccountId, str],
signature: str, server: Server):
"""Alias author to account using an alias code (signature)"""
if server.has_account(author):
raise AccountCommandException(account)
account = _get_account(account, server)
if _is_signed_by(account, str(author), signature):
server.add_account_alias(account, author)
else:
raise ValueCommandException(signature)
def process_add_alias(author: AccountId, message: str, server: Server, **kwargs):
"""Processes a request to add `author` as an alias to an account."""
if server.has_account(author):
raise CommandException(
'An account has already been associated with %s, so it cannot be an alias for another account.' % author.readable())
split_msg = message.split()
if len(split_msg) != 3:
raise CommandException('Incorrect formatting. Expected `add-alias ALIASED_ACCOUNT ALIAS_REQUEST_CODE`.')
_, aliased_account_name, signature = split_msg
aliased_account = assert_is_account(aliased_account_name, server)
if is_signed_by(aliased_account, str(author), signature):
server.add_account_alias(aliased_account, author)
return 'Alias set up successfully. %s and %s now refer to the same account.' % (
aliased_account_name, author.readable())
else:
raise CommandException('Cannot set up alias because the signature is invalid.')
