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