/usr/lib/python3/dist-packages/xattr/tool.py is in python3-xattr 0.9.2-0ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 | #!/usr/bin/env python
##
# Copyright (c) 2007 Apple Inc.
#
# This is the MIT license. This software may also be distributed under the
# same terms as Python (the PSF license).
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
##
from __future__ import print_function
import sys
import os
import getopt
import zlib
import xattr
class NullsInString(Exception):
"""Nulls in string."""
def usage(e=None):
if e:
print(e)
print("")
name = os.path.basename(sys.argv[0])
print("usage: %s [-lz] file [file ...]" % (name,))
print(" %s -p [-lz] attr_name file [file ...]" % (name,))
print(" %s -w [-z] attr_name attr_value file [file ...]" % (name,))
print(" %s -d attr_name file [file ...]" % (name,))
print("")
print("The first form lists the names of all xattrs on the given file(s).")
print("The second form (-p) prints the value of the xattr attr_name.")
print("The third form (-w) sets the value of the xattr attr_name to attr_value.")
print("The fourth form (-d) deletes the xattr attr_name.")
print("")
print("options:")
print(" -h: print this help")
print(" -l: print long format (attr_name: attr_value)")
print(" -z: compress or decompress (if compressed) attribute value in zip format")
if e:
sys.exit(64)
else:
sys.exit(0)
_FILTER = ''.join([(len(repr(chr(x))) == 3) and chr(x) or '.' for x in range(256)])
def _dump(src, length=16):
result = []
for i in range(0, len(src), length):
s = src[i:i+length]
hexa = ' '.join(["%02X" % ord(x) for x in s])
printable = s.translate(_FILTER)
result.append("%04X %-*s %s\n" % (i, length*3, hexa, printable))
return ''.join(result)
def main():
try:
(optargs, args) = getopt.getopt(sys.argv[1:], "hlpwdz", ["help"])
except getopt.GetoptError as e:
usage(e)
attr_name = None
long_format = False
read = False
write = False
delete = False
compress = lambda x: x
decompress = compress
status = 0
for opt, arg in optargs:
if opt in ("-h", "--help"):
usage()
elif opt == "-l":
long_format = True
elif opt == "-p":
read = True
if write or delete:
usage("-p not allowed with -w or -d")
elif opt == "-w":
write = True
if read or delete:
usage("-w not allowed with -p or -d")
elif opt == "-d":
delete = True
if read or write:
usage("-d not allowed with -p or -w")
elif opt == "-z":
compress = zlib.compress
decompress = zlib.decompress
if write or delete:
if long_format:
usage("-l not allowed with -w or -p")
if read or write or delete:
if not args:
usage("No attr_name")
attr_name = args.pop(0)
if write:
if not args:
usage("No attr_value")
attr_value = args.pop(0).encode('utf-8')
if len(args) > 1:
multiple_files = True
else:
multiple_files = False
for filename in args:
def onError(e):
if not os.path.exists(filename):
sys.stderr.write("No such file: %s\n" % (filename,))
else:
sys.stderr.write(str(e) + "\n")
try:
attrs = xattr.xattr(filename)
except (IOError, OSError) as e:
onError(e)
continue
if write:
try:
attrs[attr_name] = compress(attr_value)
except (IOError, OSError) as e:
onError(e)
continue
elif delete:
try:
del attrs[attr_name]
except (IOError, OSError) as e:
onError(e)
continue
except KeyError:
onError("No such xattr: %s" % (attr_name,))
continue
else:
try:
if read:
attr_names = (attr_name,)
else:
attr_names = attrs.keys()
except (IOError, OSError) as e:
onError(e)
continue
if multiple_files:
file_prefix = "%s: " % (filename,)
else:
file_prefix = ""
for attr_name in attr_names:
try:
try:
attr_value = decompress(attrs[attr_name])
except zlib.error:
attr_value = attrs[attr_name]
attr_value = attr_value.decode('utf-8')
except KeyError:
onError("%sNo such xattr: %s" % (file_prefix, attr_name))
continue
if long_format:
try:
if '\0' in attr_value:
raise NullsInString
print("".join((file_prefix, "%s: " % (attr_name,), attr_value)))
except (UnicodeDecodeError, NullsInString):
print("".join((file_prefix, "%s:" % (attr_name,))))
print(_dump(attr_value))
else:
if read:
print("".join((file_prefix, attr_value)))
else:
print("".join((file_prefix, attr_name)))
sys.exit(status)
if __name__ == "__main__":
main()
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