75 lines
2.1 KiB
Python
75 lines
2.1 KiB
Python
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# Copyright 2014 Eygene A. Ryabinkin.
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#
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# Module that supports distribution-specific functions.
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import platform
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import os
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# Each dictionary value is either string or some iterable.
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#
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# For the former we will just return the value, for an iterable
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# we will walk through the values and will return the first
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# one that corresponds to the existing file.
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__DEF_OS_LOCATIONS = {
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'freebsd': '/usr/local/share/certs/ca-root-nss.crt',
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'openbsd': None,
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'netbsd': None,
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'dragonfly': None,
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'darwin': [
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# MacPorts, port curl-ca-bundle
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'/opt/local/share/curl/curl-ca-bundle.crt',
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],
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'linux-ubuntu': '/etc/ssl/certs/ca-certificates.crt',
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'linux-debian': '/etc/ssl/certs/ca-certificates.crt',
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'linux-fedora': '/etc/pki/tls/certs/ca-bundle.crt',
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'linux-redhat': '/etc/pki/tls/certs/ca-bundle.crt',
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'linux-suse': '/etc/ssl/ca-bundle.pem',
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}
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def get_os_name():
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"""
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Finds out OS name. For non-Linux system it will be just a plain
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OS name (like FreeBSD), for Linux it will be "linux-<distro>",
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where <distro> is the name of the distribution, as returned by
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the first component of platform.linux_distribution.
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Return value will be all-lowercase to avoid confusion about
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proper name capitalisation.
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"""
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OS = platform.system().lower()
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if OS.startswith('linux'):
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DISTRO = platform.linux_distribution()[0]
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if DISTRO:
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OS = OS + "-%s" % DISTRO.lower()
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return OS
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def get_os_sslcertfile():
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"""
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Finds out the location for the distribution-specific
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CA certificate file bundle.
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Returns the location of the file or None if there is
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no known CA certificate file or all known locations
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correspond to non-existing filesystem objects.
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"""
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OS = get_os_name()
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if OS in __DEF_OS_LOCATIONS:
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l = __DEF_OS_LOCATIONS[OS]
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if not hasattr(l, '__iter__'):
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l = (l, )
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for f in l:
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assert (type(f) == type(""))
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if os.path.exists(f) and \
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(os.path.isfile(f) or os.path.islink(f)):
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return f
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return None
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