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#! /usr/bin/env python2.6
# Convert MH directories (1 message per file) or MMDF mailboxes (4x^A
# delimited) to unix mailbox (From ... delimited) on stdout.
# If -f is given, files contain one message per file (e.g. MH messages)
import rfc822
import sys
import time
import os
import stat
import getopt
import re
def main():
dofile = mmdf
try:
opts, args = getopt.getopt(sys.argv[1:], 'f')
except getopt.error, msg:
sys.stderr.write('%s\n' % msg)
sys.exit(2)
for o, a in opts:
if o == '-f':
dofile = message
if not args:
args = ['-']
sts = 0
for arg in args:
if arg == '-' or arg == '':
sts = dofile(sys.stdin) or sts
elif os.path.isdir(arg):
sts = mh(arg) or sts
elif os.path.isfile(arg):
try:
f = open(arg)
except IOError, msg:
sys.stderr.write('%s: %s\n' % (arg, msg))
sts = 1
continue
sts = dofile(f) or sts
f.close()
else:
sys.stderr.write('%s: not found\n' % arg)
sts = 1
if sts:
sys.exit(sts)
numeric = re.compile('[1-9][0-9]*')
def mh(dir):
sts = 0
msgs = os.listdir(dir)
for msg in msgs:
if numeric.match(msg) != len(msg):
continue
fn = os.path.join(dir, msg)
try:
f = open(fn)
except IOError, msg:
sys.stderr.write('%s: %s\n' % (fn, msg))
sts = 1
continue
sts = message(f) or sts
return sts
def mmdf(f):
sts = 0
while 1:
line = f.readline()
if not line:
break
if line == '\1\1\1\1\n':
sts = message(f, line) or sts
else:
sys.stderr.write(
'Bad line in MMFD mailbox: %r\n' % (line,))
return sts
counter = 0 # for generating unique Message-ID headers
def message(f, delimiter = ''):
sts = 0
# Parse RFC822 header
m = rfc822.Message(f)
# Write unix header line
fullname, email = m.getaddr('From')
tt = m.getdate('Date')
if tt:
t = time.mktime(tt)
else:
sys.stderr.write(
'Unparseable date: %r\n' % (m.getheader('Date'),))
t = os.fstat(f.fileno())[stat.ST_MTIME]
print 'From', email, time.ctime(t)
# Copy RFC822 header
for line in m.headers:
print line,
# Invent Message-ID header if none is present
if not m.has_key('message-id'):
global counter
counter = counter + 1
msgid = "<%s.%d>" % (hex(t), counter)
sys.stderr.write("Adding Message-ID %s (From %s)\n" %
(msgid, email))
print "Message-ID:", msgid
print
# Copy body
while 1:
line = f.readline()
if line == delimiter:
break
if not line:
sys.stderr.write('Unexpected EOF in message\n')
sts = 1
break
if line[:5] == 'From ':
line = '>' + line
print line,
# Print trailing newline
print
return sts
if __name__ == "__main__":
main()
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