syslog2irc.network.parse_port() - Code Metrics - homeworkprod/syslog2irc - Measure and Improve Code Quality continuously with Scrutinizer

syslog2irc.network.parse_port() B
last analyzed 2023-11-30 05:22 UTC

↳ Parent: syslog2irc.network

Complexity

Conditions

Size

Total Lines	23
Code Lines	18

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	17
CRAP Score	6

Importance

Changes

Metric	Value
cc	6
eloc	18
nop	1
dl	0
loc	23
rs	8.5666
c	0
b	0
f	0
ccs	17
cts	17
cp	1
crap	6

"""
syslog2irc.network
~~~~~~~~~~~~~~~~~~

:Copyright: 2007-2021 Jochen Kupperschmidt
:License: MIT, see LICENSE for details.
"""

from dataclasses import dataclass
from enum import Enum


TransportProtocol = Enum('TransportProtocol', ['TCP', 'UDP'])


@dataclass(frozen=True, order=True)
class Port:
    """A network port."""

    number: int
    transport_protocol: TransportProtocol


def format_port(port: Port) -> str:
    """Return string representation for port."""
    return f'{port.number}/{port.transport_protocol.name.lower()}'


def parse_port(value: str) -> Port:
    """Extract port number and protocol from string representation."""
    tokens = value.split('/', maxsplit=1)
    if len(tokens) != 2:
        raise ValueError(f'Invalid port string "{value}"')

    number_str = tokens[0]
    try:
        number = int(number_str)
    except ValueError:
        raise ValueError(f'Invalid port number "{number_str}"')
    if number < 1 or number > 65535:
        raise ValueError(f'Invalid port number "{number_str}"')

    transport_protocol_str = tokens[1]
    try:
        transport_protocol = TransportProtocol[transport_protocol_str.upper()]
    except KeyError:
        raise ValueError(
            f'Unknown transport protocol "{transport_protocol_str}"'
        )

    return Port(number=number, transport_protocol=transport_protocol)


1		"""
2		syslog2irc.network
3		~~~~~~~~~~~~~~~~~~
4
5		:Copyright: 2007-2021 Jochen Kupperschmidt
6		:License: MIT, see LICENSE for details.
7		"""
8
9	1	from dataclasses import dataclass
10	1	from enum import Enum
11
12
13	1	TransportProtocol = Enum('TransportProtocol', ['TCP', 'UDP'])
14
15
16	1	@dataclass(frozen=True, order=True)
17		class Port:
18		"""A network port."""
19
20	1	number: int
21	1	transport_protocol: TransportProtocol
22
23
24	1	def format_port(port: Port) -> str:
25		"""Return string representation for port."""
26	1	return f'{port.number}/{port.transport_protocol.name.lower()}'
27
28
29	1	def parse_port(value: str) -> Port:
30		"""Extract port number and protocol from string representation."""
31	1	tokens = value.split('/', maxsplit=1)
32	1	if len(tokens) != 2:
33	1	raise ValueError(f'Invalid port string "{value}"')
34
35	1	number_str = tokens[0]
36	1	try:
37	1	number = int(number_str)
38	1	except ValueError:
39	1	raise ValueError(f'Invalid port number "{number_str}"')
40	1	if number < 1 or number > 65535:
41	1	raise ValueError(f'Invalid port number "{number_str}"')
42
43	1	transport_protocol_str = tokens[1]
44	1	try:
45	1	transport_protocol = TransportProtocol[transport_protocol_str.upper()]
46	1	except KeyError:
47	1	raise ValueError(
48		f'Unknown transport protocol "{transport_protocol_str}"'
49		)
50
51		return Port(number=number, transport_protocol=transport_protocol)
52

homeworkprod / syslog2irc

syslog2irc.network.parse_port() B last analyzed 2023-11-30 05:22 UTC

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syslog2irc.network.parse_port() B
last analyzed 2023-11-30 05:22 UTC