glusterfs

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import os
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import sys
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from optparse import OptionParser
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import xattr
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def convert(string):
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    tmp_string = string
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    if (string[0] == '0' and
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        (string[1] == 's' or
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         string[1] == 'S')):
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        tmp_string = string.strip('%s%s' %
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                                  (string[0],
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                                   string[1]))
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        return tmp_string.decode('base64')
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    if (string[0] == '0' and
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        (string[1] == 'x' or
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         string[1] == 'X')):
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        tmp_string = string.split('%s%s' %
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                                  (string[0],
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                                   string[1]))
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        return tmp_string[1].decode('hex')
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    return tmp_string
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if __name__ == '__main__':
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    usage = "usage: %prog [-n name] [-v value] [-x name]"
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    parser = OptionParser(usage=usage)
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    parser.add_option("-n", action="store", dest="name", type="string",
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                      help="Specifies the name of the extended attribute to set.")
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    parser.add_option("-v", action="store", dest="value", type="string",
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                      help="Specifies the new value of the extended attribute."
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                      " There are three methods available for encoding the value."
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                      " If the given string is enclosed in double quotes, the"
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                      " inner string is treated as text. In that case,"
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                      " backslashes and double quotes have special meanings"
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                      " and need to be escaped by a preceding backslash. Any"
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                      " control characters can be encoded as a backslash"
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                      " followed by three digits as its ASCII code in octal."
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                      " If the given string begins with 0x or 0X, it expresses"
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                      " a hexadecimal number. If the given string begins with"
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                      " 0s or 0S, base64 encoding is expected.")
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    parser.add_option("-x", action="store", dest="xname", type="string",
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                      help="Remove the named extended attribute entirely.")
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    (option, args) = parser.parse_args()
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    if not args:
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        print ("Usage: setfattr {-n name} [-v value] file...")
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        print ("       setfattr {-x name} file...")
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        print ("Try `setfattr --help' for more information.")
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        sys.exit(1)
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    if option.name and option.xname:
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        print ("-n and -x are mutually exclusive...")
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        sys.exit(1)
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    if option.name:
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        if option.value is None:
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            print ("-n option requires -v value...")
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    args[0] = os.path.abspath(args[0])
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    if option.name and option.value:
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        try:
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            xattr.setxattr(args[0], option.name, convert(option.value))
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        except Exception as err:
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            print (err)
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            sys.exit(1)
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    if option.xname:
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        try:
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            xattr.removexattr(args[0], option.xname)
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        except Exception as err:
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            print (err)
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            sys.exit(1)
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