def is_valid_clan_tag(self, clan_tag):
if len(clan_tag) > 4:
return False
try:
ascii_bytes = clan_tag.encode('ascii')
except UnicodeError:
return False
if not utils.is_valid_ascii_for_name(ascii_bytes):
return False
return True
def validate_username(self, username):
if len(username) < Player.min_name_length:
return 'User name is too short, min length is %d characters.' % Player.min_name_length
if len(username) > Player.max_name_length:
return 'User name is too long, max length is %d characters.' % Player.max_name_length
try:
ascii_bytes = username.encode('ascii')
except UnicodeError:
return 'User name contains invalid (i.e. non-ascii) characters'
if not utils.is_valid_ascii_for_name(ascii_bytes):
return 'User name contains invalid characters'
return None
