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| 1 | +#! /usr/local/bin/python |
| 2 | + |
| 3 | +# Convert MH directories (1 message per file) or MMDF mailboxes (4x^A |
| 4 | +# delimited) to unix mailbox (From ... delimited) on stdout. |
| 5 | +# If -f is given, files contain one message per file (e.g. MH messages) |
| 6 | + |
| 7 | +import rfc822 |
| 8 | +import sys |
| 9 | +import time |
| 10 | +import os |
| 11 | +import stat |
| 12 | +import getopt |
| 13 | +import regex |
| 14 | + |
| 15 | +def main(): |
| 16 | + dofile = mmdf |
| 17 | + try: |
| 18 | + opts, args = getopt.getopt(sys.argv[1:], 'f') |
| 19 | + except getopt.error, msg: |
| 20 | + sys.stderr.write('%s\n' % msg) |
| 21 | + sys.exit(2) |
| 22 | + for o, a in opts: |
| 23 | + if o == '-f': |
| 24 | + dofile = message |
| 25 | + if not args: |
| 26 | + args = ['-'] |
| 27 | + sts = 0 |
| 28 | + for arg in args: |
| 29 | + if arg == '-' or arg == '': |
| 30 | + sts = dofile(sys.stdin) or sts |
| 31 | + elif os.path.isdir(arg): |
| 32 | + sts = mh(arg) or sts |
| 33 | + elif os.path.isfile(arg): |
| 34 | + try: |
| 35 | + f = open(arg) |
| 36 | + except IOError, msg: |
| 37 | + sys.stderr.write('%s: %s\n' % (arg, msg)) |
| 38 | + sts = 1 |
| 39 | + continue |
| 40 | + sts = dofile(f) or sts |
| 41 | + f.close() |
| 42 | + else: |
| 43 | + sys.stderr('%s: not found\n' % arg) |
| 44 | + sts = 1 |
| 45 | + if sts: |
| 46 | + sys.exit(sts) |
| 47 | + |
| 48 | +numeric = regex.compile('[1-9][0-9]*') |
| 49 | + |
| 50 | +def mh(dir): |
| 51 | + sts = 0 |
| 52 | + msgs = os.listdir(dir) |
| 53 | + for msg in msgs: |
| 54 | + if numeric.match(msg) != len(msg): |
| 55 | + continue |
| 56 | + fn = os.path.join(dir, msg) |
| 57 | + try: |
| 58 | + f = open(fn) |
| 59 | + except IOError, msg: |
| 60 | + sys.stderr.write('%s: %s\n' % (fn, msg)) |
| 61 | + sts = 1 |
| 62 | + continue |
| 63 | + sts = message(f) or sts |
| 64 | + return sts |
| 65 | + |
| 66 | +def mmdf(f): |
| 67 | + sts = 0 |
| 68 | + while 1: |
| 69 | + line = f.readline() |
| 70 | + if not line: |
| 71 | + break |
| 72 | + if line == '\1\1\1\1\n': |
| 73 | + sts = message(f, line) or sts |
| 74 | + else: |
| 75 | + sys.stderr.write( |
| 76 | + 'Bad line in MMFD mailbox: %s\n' % `line`) |
| 77 | + return sts |
| 78 | + |
| 79 | +def message(f, delimiter = ''): |
| 80 | + sts = 0 |
| 81 | + # Parse RFC822 header |
| 82 | + m = rfc822.Message(f) |
| 83 | + # Write unix header line |
| 84 | + fullname, email = m.getaddr('From') |
| 85 | + tt = m.getdate('Date') |
| 86 | + if tt: |
| 87 | + t = time.mktime(tt) |
| 88 | + else: |
| 89 | + sys.stderr.write( |
| 90 | + 'Unparseable date: %s\n' % `m.getheader('Date')`) |
| 91 | + t = os.fstat(f.fileno())[stat.ST_MTIME] |
| 92 | + print 'From', email, time.ctime(t) |
| 93 | + # Copy RFC822 header |
| 94 | + for line in m.headers: |
| 95 | + print line, |
| 96 | + print |
| 97 | + # Copy body |
| 98 | + while 1: |
| 99 | + line = f.readline() |
| 100 | + if line == delimiter: |
| 101 | + break |
| 102 | + if not line: |
| 103 | + sys.stderr.write('Unexpected EOF in message\n') |
| 104 | + sts = 1 |
| 105 | + break |
| 106 | + if line[:5] == 'From ': |
| 107 | + line = '>' + line |
| 108 | + print line, |
| 109 | + # Print trailing newline |
| 110 | + print |
| 111 | + return sts |
| 112 | + |
| 113 | +main() |
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