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# Copyright (C) 2017 Open Information Security Foundation
# Copyright (c) 2013 Jason Ish
#
# You can copy, redistribute or modify this Program under the terms of
# the GNU General Public License version 2 as published by the Free
# Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# version 2 along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
""" Module for utility functions that don't really fit anywhere else. """
import hashlib
import tempfile
import atexit
import shutil
import zipfile
def md5_hexdigest(filename):
""" Compute the MD5 checksum for the contents of the provided filename.
:param filename: Filename to computer MD5 checksum of.
:returns: A string representing the hex value of the computed MD5.
"""
return hashlib.md5(open(filename).read().encode()).hexdigest()
def mktempdir(delete_on_exit=True):
""" Create a temporary directory that is removed on exit. """
tmpdir = tempfile.mkdtemp("suricata-update")
if delete_on_exit:
atexit.register(shutil.rmtree, tmpdir, ignore_errors=True)
return tmpdir
class ZipArchiveReader:
def __init__(self, zipfile):
self.zipfile = zipfile
self.names = self.zipfile.namelist()
def __iter__(self):
return self
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
self.zipfile.close()
def next(self):
if self.names:
name = self.names.pop(0)
if name.endswith("/"):
# Is a directory, ignore
return self.next()
return name
raise StopIteration
def open(self, name):
return self.zipfile.open(name)
def read(self, name):
return self.zipfile.read(name)
@classmethod
def from_fileobj(cls, fileobj):
zf = zipfile.ZipFile(fileobj)
return cls(zf)
GREEN = "\x1b[32m"
BLUE = "\x1b[34m"
REDB = "\x1b[1;31m"
YELLOW = "\x1b[33m"
RED = "\x1b[31m"
YELLOWB = "\x1b[1;33m"
ORANGE = "\x1b[38;5;208m"
BRIGHT_MAGENTA = "\x1b[1;35m"
BRIGHT_CYAN = "\x1b[1;36m"
RESET = "\x1b[0m"
def blue(msg):
return "%s%s%s" % (BLUE, msg, RESET)
def bright_magenta(msg):
return "%s%s%s" % (BRIGHT_MAGENTA, msg, RESET)
def bright_cyan(msg):
return "%s%s%s" % (BRIGHT_CYAN, msg, RESET)
def orange(msg):
return "%s%s%s" % (ORANGE, msg, RESET)
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