# Copyright 1994 by Lance Ellinghouse
# Cathedral City, California Republic, United States of America.
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose and without fee is hereby granted,
# provided that the above copyright notice appear in all copies and that
# both that copyright notice and this permission notice appear in
# supporting documentation, and that the name of Lance Ellinghouse
# not be used in advertising or publicity pertaining to distribution
# of the software without specific, written prior permission.
# LANCE ELLINGHOUSE DISCLAIMS ALL WARRANTIES WITH REGARD TO
# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
# FITNESS, IN NO EVENT SHALL LANCE ELLINGHOUSE CENTRUM BE LIABLE
# FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
# Modified by Jack Jansen, CWI, July 1995:
# - Use binascii module to do the actual line-by-line conversion
# between ascii and binary. This results in a 1000-fold speedup. The C
# version is still 5 times faster, though.
# - Arguments more compliant with python standard
"""Implementation of the UUencode and UUdecode functions.
encode(in_file, out_file [,name, mode])
decode(in_file [, out_file, mode])
from types
import StringType
__all__
= ["Error", "encode", "decode"]
def encode(in_file
, out_file
, name
=None, mode
=None):
# If in_file is a pathname open it and change defaults
elif isinstance(in_file
, StringType
):
name
= os
.path
.basename(in_file
)
mode
= os
.stat(in_file
).st_mode
in_file
= open(in_file
, 'rb')
# Open out_file if it is a pathname
elif isinstance(out_file
, StringType
):
out_file
= open(out_file
, 'w')
# Set defaults for name and mode
out_file
.write('begin %o %s\n' % ((mode
&0777),name
))
out_file
.write(binascii
.b2a_uu(str))
out_file
.write(' \nend\n')
def decode(in_file
, out_file
=None, mode
=None, quiet
=0):
"""Decode uuencoded file"""
# Open the input file, if needed.
elif isinstance(in_file
, StringType
):
# Read until a begin is encountered or we've exhausted the file
raise Error
, 'No valid begin line found in input file'
hdrfields
= hdr
.split(" ", 2)
if len(hdrfields
) == 3 and hdrfields
[0] == 'begin':
out_file
= hdrfields
[2].rstrip()
if os
.path
.exists(out_file
):
raise Error
, 'Cannot overwrite existing file: %s' % out_file
mode
= int(hdrfields
[1], 8)
elif isinstance(out_file
, StringType
):
fp
= open(out_file
, 'wb')
os
.path
.chmod(out_file
, mode
)
while s
and s
.strip() != 'end':
data
= binascii
.a2b_uu(s
)
except binascii
.Error
, v
:
# Workaround for broken uuencoders by /Fredrik Lundh
nbytes
= (((ord(s
[0])-32) & 63) * 4 + 5) / 3
data
= binascii
.a2b_uu(s
[:nbytes
])
sys
.stderr
.write("Warning: %s\n" % str(v
))
raise Error
, 'Truncated input file'
"""uuencode/uudecode main program"""
optlist
, args
= getopt
.getopt(sys
.argv
[1:], 'dt')
if not ok
or len(args
) > 2:
print 'Usage:', sys
.argv
[0], '[-d] [-t] [input [output]]'
print ' -d: Decode (in stead of encode)'
print ' -t: data is text, encoded format unix-compatible text'
if isinstance(output
, StringType
):
output
= open(output
, 'w')
print sys
.argv
[0], ': cannot do -t to stdout'
if isinstance(input, StringType
):
print sys
.argv
[0], ': cannot do -t from stdin'
if __name__
== '__main__':