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base64 support by Sjoerd.

This commit is contained in:
Guido van Rossum 1997-04-11 15:22:56 +00:00
parent 44adb0c95f
commit a3d9e02593
1 changed files with 25 additions and 11 deletions
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36
Lib/mimify.py
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@ -31,7 +31,7 @@ import regex, regsub, string
qp = regex.compile('^content-transfer-encoding:[ \t]*quoted-printable',
regex.casefold)
base64 = regex.compile('^content-transfer-encoding:[ \t]*base64',
base64_re = regex.compile('^content-transfer-encoding:[ \t]*base64',
regex.casefold)
mp = regex.compile('^content-type:[\000-\377]*multipart/[\000-\377]*boundary="?\\([^;"\n]*\\)',
regex.casefold)
@ -115,10 +115,11 @@ def mime_decode_header(line):
line = line[i + len(match[0]):]
return newline + line
def unmimify_part(ifile, ofile):
def unmimify_part(ifile, ofile, decode_base64 = 0):
'''Convert a quoted-printable part of a MIME mail message to 8bit.'''
multipart = None
quoted_printable = 0
is_base64 = 0
is_repl = 0
if ifile.boundary and ifile.boundary[:2] == QUOTE:
prefix = QUOTE
@ -140,6 +141,9 @@ def unmimify_part(ifile, ofile):
if qp.match(line) >= 0:
quoted_printable = 1
continue # skip this header
if decode_base64 and base64_re.match(line) >= 0:
is_base64 = 1
continue
ofile.write(pref + line)
if not prefix and repl.match(line) >= 0:
# we're dealing with a reply message
@ -173,7 +177,7 @@ def unmimify_part(ifile, ofile):
if line == multipart + '\n':
ofile.write(pref + line)
nifile = File(ifile, multipart)
unmimify_part(nifile, ofile)
unmimify_part(nifile, ofile, decode_base64)
line = nifile.peek
continue
# not a boundary between parts
@ -186,10 +190,13 @@ def unmimify_part(ifile, ofile):
newline = newline[len(QUOTE):]
line = line + newline
line = mime_decode(line)
if line and is_base64 and not pref:
import base64
line = base64.decodestring(line)
if line:
ofile.write(pref + line)
def unmimify(infile, outfile):
def unmimify(infile, outfile, decode_base64 = 0):
'''Convert quoted-printable parts of a MIME mail message to 8bit.'''
if type(infile) == type(''):
ifile = open(infile)
@ -204,7 +211,7 @@ def unmimify(infile, outfile):
else:
ofile = outfile
nifile = File(ifile, None)
unmimify_part(nifile, ofile)
unmimify_part(nifile, ofile, decode_base64)
ofile.flush()
mime_char = regex.compile('[=\240-\377]') # quote these chars in body
@ -285,7 +292,7 @@ def mimify_part(ifile, ofile, is_mime):
has_cte = 1
if qp.match(line) >= 0:
is_qp = 1
elif base64.match(line) >= 0:
elif base64_re.match(line) >= 0:
is_base64 = 1
if mp.match(line) >= 0:
multipart = '--' + mp.group(1)
@ -405,11 +412,13 @@ if __name__ == '__main__' or (len(sys.argv) > 0 and sys.argv[0] == 'mimify'):
import getopt
usage = 'Usage: mimify [-l len] -[ed] [infile [outfile]]'
opts, args = getopt.getopt(sys.argv[1:], 'l:ed')
decode_base64 = 0
opts, args = getopt.getopt(sys.argv[1:], 'l:edb')
if len(args) not in (0, 1, 2):
print usage
sys.exit(1)
if (('-e', '') in opts) == (('-d', '') in opts):
if (('-e', '') in opts) == (('-d', '') in opts) or \
((('-b', '') in opts) and (('-d', '') not in opts)):
print usage
sys.exit(1)
for o, a in opts:
@ -423,9 +432,14 @@ if __name__ == '__main__' or (len(sys.argv) > 0 and sys.argv[0] == 'mimify'):
except:
print usage
sys.exit(1)
elif o == '-b':
decode_base64 = 1
if len(args) == 0:
encode(sys.stdin, sys.stdout)
encode_args = (sys.stdin, sys.stdout)
elif len(args) == 1:
encode(args[0], sys.stdout)
encode_args = (args[0], sys.stdout)
else:
encode(args[0], args[1])
encode_args = (args[0], args[1])
if decode_base64:
encode_args = encode_args + (decode_base64,)
apply(encode, encode_args)