mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-12-24 06:56:42 +00:00
135 lines
3.9 KiB
Python
135 lines
3.9 KiB
Python
#!/usr/bin/env python
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#
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# Copyright (C) 2015 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys
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import re
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import shlex
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import textwrap
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import posixpath
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import socket
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import errno
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import hashlib
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def force_unix_path(path):
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"""
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:param path: Path to convert
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"""
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path = path.replace("\\", "/")
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return posixpath.normpath(path)
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def macaddress_to_int(mac_address):
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"""
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Convert a macaddress with the format 00:0c:29:11:b0:0a to a int
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:param mac_address: The mac address
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:returns: Integer
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"""
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return int(mac_address.replace(":", ""), 16)
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def int_to_macaddress(integer):
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"""
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Convert an integer to a mac address
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"""
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return ":".join(textwrap.wrap("%012x" % (integer), width=2))
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def parse_version(version):
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"""
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Return a comparable tuple from a version string. We try to force tuple to semver with version like 1.2.0
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Replace pkg_resources.parse_version which now display a warning when use for comparing version with tuple
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:returns: Version string as comparable tuple
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"""
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release_type_found = False
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version_infos = re.split(r'(\.|[a-z]+)', version)
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version = []
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for info in version_infos:
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if info == '.' or len(info) == 0:
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continue
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try:
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info = int(info)
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# We pad with zero to compare only on string
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# This avoid issue when comparing version with different length
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version.append("%06d" % (info,))
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except ValueError:
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# Force to a version with three number
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if len(version) == 1:
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version.append("00000")
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if len(version) == 2:
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version.append("000000")
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# We want rc to be at lower level than dev version
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if info == 'rc':
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info = 'c'
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version.append(info)
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release_type_found = True
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if release_type_found is False:
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# Force to a version with three number
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if len(version) == 1:
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version.append("00000")
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if len(version) == 2:
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version.append("000000")
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version.append("final")
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return tuple(version)
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def shlex_quote(s):
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"""
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Compatible shlex_quote to handle case where Windows needs double quotes around file names, not single quotes.
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"""
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if sys.platform.startswith("win"):
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return s if re.match(r'^[-_\w./]+$', s) else '"%s"' % s.replace('"', '\\"')
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else:
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return shlex.quote(s)
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def is_ipv6_enabled() -> bool:
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if not socket.has_ipv6:
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return False # the socket library has no support for IPv6
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try:
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with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as sock:
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sock.bind(("::1", 0))
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return True
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except OSError as e:
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if e.errno in (errno.EADDRNOTAVAIL, errno.EAFNOSUPPORT):
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# EADDRNOTAVAIL is the errno if IPv6 modules/drivers are loaded but disabled.
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# EAFNOSUPPORT is the errno if IPv6 modules/drivers are not loaded at all.
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return False
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if e.errno == errno.EADDRINUSE:
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return True
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raise
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def md5sum(filename):
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"""
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Calculate the MD5 checksum of a file.
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"""
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hash_md5 = hashlib.md5()
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with open(filename, "rb") as f:
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for chunk in iter(lambda: f.read(4096), b""):
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hash_md5.update(chunk)
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return hash_md5.hexdigest()
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