1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
#
# A class to hand a unix-style or mmdf-style mailboxes
#
# Jack Jansen, CWI, March 1994.
#
import rfc822
import os
import regex
class _Mailbox:
def __init__(self, fp):
self.fp = fp
self.seekp = 0
def seek(self, pos, whence=0):
if whence==1: # Relative to current position
self.pos = self.pos + pos
if whence==2: # Relative to file's end
self.pos = self.stop + pos
else: # Default - absolute position
self.pos = self.start + pos
def next(self):
while 1:
self.fp.seek(self.seekp)
try:
self._search_start()
except EOFError:
self.seekp = self.fp.tell()
return None
start = self.fp.tell()
self._search_end()
self.seekp = stop = self.fp.tell()
if start <> stop:
break
return rfc822.Message(_Subfile(self.fp, start, stop))
class _Subfile:
def __init__(self, fp, start, stop):
self.fp = fp
self.start = start
self.stop = stop
self.pos = self.start
def read(self, length = None):
if self.pos >= self.stop:
return ''
if length is None:
length = self.stop - self.pos
self.fp.seek(self.pos)
self.pos = self.pos + length
return self.fp.read(length)
def readline(self, length = None):
if self.pos >= self.stop:
return ''
if length is None:
length = self.stop - self.pos
self.fp.seek(self.pos)
data = self.fp.readline(length)
if len(data) < length:
length = len(data)
self.pos = self.pos + length
return data
def tell(self):
return self.pos - self.start
def seek(self, pos, whence=0):
if whence == 0:
self.pos = self.start + pos
elif whence == 1:
self.pos = self.pos + pos
elif whence == 2:
self.pos = self.stop + pos
def close(self):
pass
class UnixMailbox(_Mailbox):
def _search_start(self):
while 1:
line = self.fp.readline()
if not line:
raise EOFError
if line[:5] == 'From ':
return
def _search_end(self):
while 1:
pos = self.fp.tell()
line = self.fp.readline()
if not line:
return
if line[:5] == 'From ':
self.fp.seek(pos)
return
class MmdfMailbox(_Mailbox):
def _search_start(self):
while 1:
line = self.fp.readline()
if not line:
raise EOFError
if line[:5] == '\001\001\001\001\n':
return
def _search_end(self):
while 1:
pos = self.fp.tell()
line = self.fp.readline()
if not line:
return
if line == '\001\001\001\001\n':
self.fp.seek(pos)
return
class MHMailbox:
def __init__(self, dirname):
pat = regex.compile('^[0-9][0-9]*$')
self.dirname = dirname
files = os.listdir(self.dirname)
self.boxes = []
for f in files:
if pat.match(f) == len(f):
self.boxes.append(f)
def next(self):
if not self.boxes:
return None
fn = self.boxes[0]
del self.boxes[0]
fp = open(os.path.join(self.dirname, fn))
return rfc822.Message(fp)
if __name__ == '__main__':
import posix
import time
import sys
import string
## mbox = '/usr/mail/'+posix.environ['USER']
## fp = open(mbox, 'r')
## mb = UnixMailbox(fp)
mbox = posix.environ['HOME']+'/Mail/inbox'
mb = MHMailbox(mbox)
msgs = []
while 1:
msg = mb.next()
if not msg:
break
msgs.append(msg)
if len(sys.argv) > 1:
num = string.atoi(sys.argv[1])
print 'Message %d body:'%num
msg = msgs[num-1]
msg.rewindbody()
sys.stdout.write(msg.fp.read())
sys.exit(0)
print 'Mailbox',mbox,'has',len(msgs),'messages:'
for msg in msgs:
f = msg.getheader('from')
s = msg.getheader('subject')
d = (msg.getheader('date'))
print '%20.20s %18.18s %-30.30s'%(f, d[5:], s)
|
