mirror of
https://github.com/python/cpython.git
synced 2025-11-04 11:49:12 +00:00
276 lines
9.4 KiB
Python
Executable file
276 lines
9.4 KiB
Python
Executable file
#! /usr/bin/env python
|
|
|
|
"""Classes to handle Unix style, MMDF style, and MH style mailboxes."""
|
|
|
|
|
|
import rfc822
|
|
import os
|
|
|
|
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 ''
|
|
remaining = self.stop - self.pos
|
|
if length is None or length < 0:
|
|
length = remaining
|
|
elif length > remaining:
|
|
length = remaining
|
|
self.fp.seek(self.pos)
|
|
data = self.fp.read(length)
|
|
self.pos = self.fp.tell()
|
|
return data
|
|
|
|
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)
|
|
self.pos = self.fp.tell()
|
|
return data
|
|
|
|
def readlines(self, sizehint = -1):
|
|
lines = []
|
|
while 1:
|
|
line = self.readline()
|
|
if not line:
|
|
break
|
|
lines.append(line)
|
|
if sizehint >= 0:
|
|
sizehint = sizehint - len(line)
|
|
if sizehint <= 0:
|
|
break
|
|
return lines
|
|
|
|
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):
|
|
del self.fp
|
|
|
|
class UnixMailbox(_Mailbox):
|
|
|
|
def _search_start(self):
|
|
while 1:
|
|
line = self.fp.readline()
|
|
if not line:
|
|
raise EOFError
|
|
if line[:5] == 'From ' and self._isrealfromline(line):
|
|
return
|
|
|
|
def _search_end(self):
|
|
while 1:
|
|
pos = self.fp.tell()
|
|
line = self.fp.readline()
|
|
if not line:
|
|
return
|
|
if line[:5] == 'From ' and self._isrealfromline(line):
|
|
self.fp.seek(pos)
|
|
return
|
|
|
|
# An overridable mechanism to test for From-line-ness.
|
|
# You can either specify a different regular expression
|
|
# or define a whole new _isrealfromline() method.
|
|
# Note that this only gets called for lines starting with
|
|
# the 5 characters "From ".
|
|
|
|
_fromlinepattern = r"From \s*[^\s]+\s+\w\w\w\s+\w\w\w\s+\d?\d\s+" \
|
|
r"\d?\d:\d\d(:\d\d)?(\s+[^\s]+)?\s+\d\d\d\d\s*$"
|
|
_regexp = None
|
|
|
|
def _isrealfromline(self, line):
|
|
if not self._regexp:
|
|
import re
|
|
self._regexp = re.compile(self._fromlinepattern)
|
|
return self._regexp.match(line)
|
|
|
|
class MmdfMailbox(_Mailbox):
|
|
|
|
def _search_start(self):
|
|
while 1:
|
|
line = self.fp.readline()
|
|
if not line:
|
|
raise EOFError
|
|
if line[:5] == '\001\001\001\001\n':
|
|
return
|
|
|
|
def _search_end(self):
|
|
while 1:
|
|
pos = self.fp.tell()
|
|
line = self.fp.readline()
|
|
if not line:
|
|
return
|
|
if line == '\001\001\001\001\n':
|
|
self.fp.seek(pos)
|
|
return
|
|
|
|
class MHMailbox:
|
|
|
|
def __init__(self, dirname):
|
|
import re
|
|
pat = re.compile('^[0-9][0-9]*$')
|
|
self.dirname = dirname
|
|
files = os.listdir(self.dirname)
|
|
self.boxes = []
|
|
for f in files:
|
|
if pat.match(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)
|
|
|
|
class Maildir:
|
|
|
|
# Qmail directory mailbox
|
|
|
|
def __init__(self, dirname):
|
|
import string
|
|
self.dirname = dirname
|
|
self.boxes = []
|
|
|
|
# check for new mail
|
|
newdir = os.path.join(self.dirname, 'new')
|
|
for file in os.listdir(newdir):
|
|
if len(string.split(file, '.')) > 2:
|
|
self.boxes.append(os.path.join(newdir, file))
|
|
|
|
# Now check for current mail in this maildir
|
|
curdir = os.path.join(self.dirname, 'cur')
|
|
for file in os.listdir(curdir):
|
|
if len(string.split(file, '.')) > 2:
|
|
self.boxes.append(os.path.join(curdir, file))
|
|
|
|
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)
|
|
|
|
class BabylMailbox(_Mailbox):
|
|
|
|
def _search_start(self):
|
|
while 1:
|
|
line = self.fp.readline()
|
|
if not line:
|
|
raise EOFError
|
|
if line == '*** EOOH ***\n':
|
|
return
|
|
|
|
def _search_end(self):
|
|
while 1:
|
|
pos = self.fp.tell()
|
|
line = self.fp.readline()
|
|
if not line:
|
|
return
|
|
if line == '\037\014\n':
|
|
self.fp.seek(pos)
|
|
return
|
|
|
|
|
|
def _test():
|
|
import time
|
|
import sys
|
|
import string
|
|
import os
|
|
|
|
args = sys.argv[1:]
|
|
if not args:
|
|
for key in 'MAILDIR', 'MAIL', 'LOGNAME', 'USER':
|
|
if os.environ.has_key(key):
|
|
mbox = os.environ[key]
|
|
break
|
|
else:
|
|
print "$MAIL, $LOGNAME nor $USER set -- who are you?"
|
|
return
|
|
else:
|
|
mbox = args[0]
|
|
if mbox[:1] == '+':
|
|
mbox = os.environ['HOME'] + '/Mail/' + mbox[1:]
|
|
elif not '/' in mbox:
|
|
mbox = '/usr/mail/' + mbox
|
|
if os.path.isdir(mbox):
|
|
if os.path.isdir(os.path.join(mbox, 'cur')):
|
|
mb = Maildir(mbox)
|
|
else:
|
|
mb = MHMailbox(mbox)
|
|
else:
|
|
fp = open(mbox, 'r')
|
|
mb = UnixMailbox(fp)
|
|
|
|
msgs = []
|
|
while 1:
|
|
msg = mb.next()
|
|
if msg is None:
|
|
break
|
|
msgs.append(msg)
|
|
if len(args) <= 1:
|
|
msg.fp = None
|
|
if len(args) > 1:
|
|
num = string.atoi(args[1])
|
|
print 'Message %d body:'%num
|
|
msg = msgs[num-1]
|
|
msg.rewindbody()
|
|
sys.stdout.write(msg.fp.read())
|
|
else:
|
|
print 'Mailbox',mbox,'has',len(msgs),'messages:'
|
|
for msg in msgs:
|
|
f = msg.getheader('from') or ""
|
|
s = msg.getheader('subject') or ""
|
|
d = msg.getheader('date') or ""
|
|
print '%20.20s %18.18s %-30.30s'%(f, d[5:], s)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
_test()
|