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# uncompyle6 version 3.2.3
# Python bytecode 3.6 (3379)
# Decompiled from: Python 3.6.8 |Anaconda custom (64-bit)| (default, Feb 21 2019, 18:30:04) [MSC v.1916 64 bit (AMD64)]
# Embedded file name: uu.py
"""Implementation of the UUencode and UUdecode functions.
encode(in_file, out_file [,name, mode])
decode(in_file [, out_file, mode])
"""
import binascii, os, sys
__all__ = ["Error", "encode", "decode"]
class Error(Exception):
pass
def encode(in_file, out_file, name=None, mode=None):
"""Uuencode file"""
opened_files = []
try:
if in_file == "-":
in_file = sys.stdin.buffer
else:
if isinstance(in_file, str):
if name is None:
name = os.path.basename(in_file)
if mode is None:
try:
mode = os.stat(in_file).st_mode
except AttributeError:
pass
in_file = open(in_file, "rb")
opened_files.append(in_file)
if out_file == "-":
out_file = sys.stdout.buffer
else:
if isinstance(out_file, str):
out_file = open(out_file, "wb")
opened_files.append(out_file)
if name is None:
name = "-"
if mode is None:
mode = 438
out_file.write(("begin %o %s\n" % (mode & 511, name)).encode("ascii"))
data = in_file.read(45)
while len(data) > 0:
out_file.write(binascii.b2a_uu(data))
data = in_file.read(45)
out_file.write(b" \nend\n")
finally:
for f in opened_files:
f.close()
def decode(in_file, out_file=None, mode=None, quiet=False):
"""Decode uuencoded file"""
opened_files = []
if in_file == "-":
in_file = sys.stdin.buffer
else:
if isinstance(in_file, str):
in_file = open(in_file, "rb")
opened_files.append(in_file)
try:
while 1:
hdr = in_file.readline()
if not hdr:
raise Error("No valid begin line found in input file")
if not hdr.startswith(b"begin"):
continue
hdrfields = hdr.split(b" ", 2)
if len(hdrfields) == 3:
if hdrfields[0] == b"begin":
try:
int(hdrfields[1], 8)
break
except ValueError:
pass
if out_file is None:
out_file = hdrfields[2].rstrip(b" \t\r\n\x0c").decode("ascii")
if os.path.exists(out_file):
raise Error("Cannot overwrite existing file: %s" % out_file)
if mode is None:
mode = int(hdrfields[1], 8)
if out_file == "-":
out_file = sys.stdout.buffer
else:
if isinstance(out_file, str):
fp = open(out_file, "wb")
try:
os.path.chmod(out_file, mode)
except AttributeError:
pass
out_file = fp
opened_files.append(out_file)
s = in_file.readline()
while s and s.strip(b" \t\r\n\x0c") != b"end":
try:
data = binascii.a2b_uu(s)
except binascii.Error as v:
nbytes = ((s[0] - 32 & 63) * 4 + 5) // 3
data = binascii.a2b_uu(s[:nbytes])
if not quiet:
sys.stderr.write("Warning: %s\n" % v)
out_file.write(data)
s = in_file.readline()
if not s:
raise Error("Truncated input file")
finally:
for f in opened_files:
f.close()
def test():
"""uuencode/uudecode main program"""
import optparse
parser = optparse.OptionParser(usage="usage: %prog [-d] [-t] [input [output]]")
parser.add_option(
"-d",
"--decode",
dest="decode",
help="Decode (instead of encode)?",
default=False,
action="store_true",
)
parser.add_option(
"-t",
"--text",
dest="text",
help="data is text, encoded format unix-compatible text?",
default=False,
action="store_true",
)
options, args = parser.parse_args()
if len(args) > 2:
parser.error("incorrect number of arguments")
sys.exit(1)
input = sys.stdin.buffer
output = sys.stdout.buffer
if len(args) > 0:
input = args[0]
if len(args) > 1:
output = args[1]
if options.decode:
if options.text:
if isinstance(output, str):
output = open(output, "wb")
else:
print(sys.argv[0], ": cannot do -t to stdout")
sys.exit(1)
decode(input, output)
else:
if options.text:
if isinstance(input, str):
input = open(input, "rb")
else:
print(sys.argv[0], ": cannot do -t from stdin")
sys.exit(1)
encode(input, output)
if __name__ == "__main__":
test()
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