summaryrefslogtreecommitdiffstats
path: root/Lib/mailbox.py
blob: e60b73b966af6197993857b6b881a108ad7ae554 (plain)
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)