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diff --git a/_modules/network_utils.py b/_modules/network_utils.py
index 1a16853..1ffb73e 100644
--- a/_modules/network_utils.py
+++ b/_modules/network_utils.py
@@ -1,46 +1,46 @@
# -*- coding: utf-8 -*-
# -------------------------------------------------------------
# Salt — Network execution module
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Project: Nasqueron
# License: BSD-2-Clause
# -------------------------------------------------------------
import re
# -------------------------------------------------------------
# CIDR netmask and prefixes
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
def is_valid_netmask(netmask):
# "255.255.255.240" → "11111111111111111111111111110000"
- bits = ''.join([format(int(octet), 'b') for octet in netmask.split(".")])
+ bits = "".join([format(int(octet), "b") for octet in netmask.split(".")])
# A netmask is valid if the suite of bits:
# - starts by contiguous 1, e.g. here 1111111111111111111111111111
# - ends by contiguous 0, e.g. here 0000
#
# Also, as 0.0.0.0 is invalid, netmask must starts by 1.
return re.compile("^1+0*$").match(bits) is not None
def netmask_to_cidr_prefix(netmask):
"""
Convert a netmask like 255.255.255.240 into a CIDR prefix like 24.
This can be useful for RHEL network scripts requiring PREFIX information.
"""
if not is_valid_netmask(netmask):
raise ValueError("Netmask is invalid.")
# The CIDR prefix is the count of 1 bits in each octet.
# e.g. 255.255.255.240 can be split in octets [255, 255, 255, 240],
# then becomes ['0b11111111', '0b11111111', '0b11111111', '0b11110000'].
#
# There is 24 "1" in this expression, that's 24 is our CIDR prefix.
return sum([bin(int(octet)).count("1") for octet in netmask.split(".")])
diff --git a/_tests/modules/test_network.py b/_tests/modules/test_network.py
index b39ebd6..b05ed6e 100755
--- a/_tests/modules/test_network.py
+++ b/_tests/modules/test_network.py
@@ -1,54 +1,53 @@
#!/usr/bin/env python3
from importlib.machinery import SourceFileLoader
from unittest_data_provider import data_provider
import unittest
salt_test_case = SourceFileLoader("salt_test_case", "salt_test_case.py").load_module()
network = SourceFileLoader("network", "../_modules/network_utils.py").load_module()
class Testinstance(unittest.TestCase, salt_test_case.SaltTestCase):
cidr_prefixes = lambda: (
("255.255.255.255", 32),
("255.255.255.254", 31),
("255.255.255.252", 30),
("255.255.255.240", 28),
("255.255.255.224", 27),
("255.255.255.0", 24),
("255.252.0.0", 14),
)
valid_netmasks = lambda: (
("255.255.255.255",),
("255.255.255.254",),
("255.255.255.252",),
("255.255.255.240",),
)
invalid_netmasks = lambda: (
# In binary, it's not a suite of 1 then a suite of 0
("255.255.255.209",),
-
# By definition, netmask MUST be strictly greater than 0
("0.0.0.0",),
)
@data_provider(cidr_prefixes)
def test_netmask_to_cidr_prefix(self, netmask, expected_prefix):
actual_prefix = network.netmask_to_cidr_prefix(netmask)
self.assertTrue(actual_prefix == expected_prefix)
@data_provider(valid_netmasks)
def test_is_valid_netmask(self, netmask):
self.assertTrue(network.is_valid_netmask(netmask))
@data_provider(invalid_netmasks)
def test_is_valid_netmask_when_it_is_not(self, netmask):
self.assertFalse(network.is_valid_netmask(netmask))
if __name__ == "__main__":
unittest.main()
diff --git a/roles/devserver/userland-home/files/dereckson/bin/http2pls b/roles/devserver/userland-home/files/dereckson/bin/http2pls
index c989fdf..b325b9d 100755
--- a/roles/devserver/userland-home/files/dereckson/bin/http2pls
+++ b/roles/devserver/userland-home/files/dereckson/bin/http2pls
@@ -1,69 +1,73 @@
#!/usr/bin/env python3
from bs4 import BeautifulSoup
from urllib import request, parse
from os import path
from sys import argv, exit, stderr
def get_url(base_url, tag):
- relative_url = tag.get('href')
+ relative_url = tag.get("href")
return parse.urljoin(base_url, relative_url)
def is_media_extension(extension):
valid_extensions = [
# Videos
- ".avi", ".flv", ".mp4", ".wmv", ".mkv",
+ ".avi",
+ ".flv",
+ ".mp4",
+ ".wmv",
+ ".mkv",
]
return extension in valid_extensions
def is_media_link(url):
extension = path.splitext(url)[1]
return is_media_extension(extension)
def print_pls(url):
links = get_media_links(url)
if not links:
return
print("[playlist]")
i = 0
for link in links:
i += 1
- print('File{:d}={:s}'.format(i, link))
+ print("File{:d}={:s}".format(i, link))
print("")
print("NumberOfEntries={:d}".format(i))
print("Version=2")
def get_media_links(url):
return [link for link in get_links(url) if is_media_link(link)]
def get_links(url):
try:
with request.urlopen(url) as response:
body = response.read()
- soup = BeautifulSoup(body, 'html.parser')
- return [get_url(url, link) for link in soup.find_all('a')]
+ soup = BeautifulSoup(body, "html.parser")
+ return [get_url(url, link) for link in soup.find_all("a")]
except ValueError:
print("No valid URL: " + url, file=stderr)
return []
def run():
if len(argv) < 2:
exit(1)
print_pls(argv[1])
if __name__ == "__main__":
run()
diff --git a/roles/devserver/userland-home/files/dereckson/bin/hypergeometric_distribution b/roles/devserver/userland-home/files/dereckson/bin/hypergeometric_distribution
index 369309e..01cdf13 100755
--- a/roles/devserver/userland-home/files/dereckson/bin/hypergeometric_distribution
+++ b/roles/devserver/userland-home/files/dereckson/bin/hypergeometric_distribution
@@ -1,58 +1,61 @@
#!/usr/bin/env python3
import math
import sys
def binomial_coefficient(n, k):
f = math.factorial
return f(n) / f(k) / f(n - k)
def compute(population_size, success_states_count, draws_count, observed_successes):
N = population_size
K = success_states_count
n = draws_count
k = observed_successes
bc = binomial_coefficient
return bc(K, k) * bc(N - K, n - k) / bc(N, n)
def usage():
- print(f"Usage: {sys.argv[0]} <population size> <number of success states> <number of draws> <number of observed successes>", file=sys.stderr)
+ print(
+ f"Usage: {sys.argv[0]} <population size> <number of success states> <number of draws> <number of observed successes>",
+ file=sys.stderr,
+ )
def help():
usage()
print()
print("Example:")
print()
print("In a Magic the Gathering deck of 60 cards, you've put 23 lands.")
print("To compute the probability to get 3 lands in your opening hand (7 cards):")
print(f" {sys.argv[0]} 60 23 7 3")
def has_help_arg():
help_args = ["-h", "--help", "/?", "/help"]
return any([help_arg in sys.argv[1:] for help_arg in help_args])
if __name__ == "__main__":
if has_help_arg():
help()
sys.exit(0)
if len(sys.argv) != 5:
usage()
sys.exit(1)
try:
numbers = [float(arg) for arg in sys.argv[1:]]
probability = compute(*numbers)
print(probability)
except ValueError as e:
print(e)
usage()
sys.exit(2)

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