1 #! /usr/bin/env 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 re 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.write('%s: not found\n' % arg) 44 sts = 1 45 if sts: 46 sys.exit(sts) 47 48 numeric = re.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: %r\n' % (line,)) 77 return sts 78 79 counter = 0 # for generating unique Message-ID headers 80 81 def message(f, delimiter = ''): 82 sts = 0 83 # Parse RFC822 header 84 m = rfc822.Message(f) 85 # Write unix header line 86 fullname, email = m.getaddr('From') 87 tt = m.getdate('Date') 88 if tt: 89 t = time.mktime(tt) 90 else: 91 sys.stderr.write( 92 'Unparseable date: %r\n' % (m.getheader('Date'),)) 93 t = os.fstat(f.fileno())[stat.ST_MTIME] 94 print 'From', email, time.ctime(t) 95 # Copy RFC822 header 96 for line in m.headers: 97 print line, 98 # Invent Message-ID header if none is present 99 if not m.has_key('message-id'): 100 global counter 101 counter = counter + 1 102 msgid = "<%s.%d>" % (hex(t), counter) 103 sys.stderr.write("Adding Message-ID %s (From %s)\n" % 104 (msgid, email)) 105 print "Message-ID:", msgid 106 print 107 # Copy body 108 while 1: 109 line = f.readline() 110 if line == delimiter: 111 break 112 if not line: 113 sys.stderr.write('Unexpected EOF in message\n') 114 sts = 1 115 break 116 if line[:5] == 'From ': 117 line = '>' + line 118 print line, 119 # Print trailing newline 120 print 121 return sts 122 123 if __name__ == "__main__": 124 main() 125
