def DecodeBase64Option(option, opt, value):
try:
return base64.standard_b64decode(value)
except TypeError:
raise OptionValueError(
"option %s: invalid base64 value: %r" % (opt, value))
def DecodeHexIntOption(option, opt, value):
try:
return int(value, 16)
except ValueError:
raise OptionValueError("option %s: invalid value: %r" % (opt, value))
def compress_level(option, opt_str, value, parser):
if value < 0 or value > 9:
raise OptionValueError("Valid values for --compressed are 0..9")
setattr(parser.values, option.dest, value)
def buffer_size(option, opt_str, value, parser):
if not value > 0:
raise OptionValueError("Buffer size value should be greater than 0")
setattr(parser.values, option.dest, value)
def packet_option_handler(option, opt_str, value, parser):
if value not in (1, 2, 4):
raise OptionValueError("Valid values for --packet are 1, 2, or 4")
setattr(parser.values, option.dest, value)
def mode_callback(option, opt, value, parser):
try:
parser.values.mode = getattr(DES, 'MODE_'+value.upper())
except AttributeError:
raise OptionValueError('Invalid mode "%s"' % value)
def check_intx(option, opt, value):
try:
return int(value, 0)
except:
raise OptionValueError("option %s: invalid integer value: %r" %
(opt, value))
def check_eng_float(option, opt, value):
try:
return eng_notation.str_to_num(value)
except:
raise OptionValueError(
"option %s: invalid engineering notation value: %r" % (opt, value))
def _validate_callback(option, opt_str, value, parser, valid_values):
if value not in valid_values:
raise OptionValueError('%s must be one of: %s, not %s' %
(opt_str, '|'.join(valid_values), value))
setattr(parser.values, option.dest, value)
