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import mhlib, os, StringIO2
StringIO = StringIO2
from slime_abstract import *
from mailbox import UnixMailbox, _Subfile
def unix_top_folder(dirname):
"""Return SlimeFolder with top level Unix folders."""
dirname = os.path.expanduser(dirname)
if os.path.isdir(dirname):
if not os.path.isfile(os.path.join(dirname, "context")):
return SlimeFolder_Unix(dirname)
return None
class SlimeFolder_Unix(SlimeFolder):
"""A SlimeFolder interface to ordinary Unix mailbox folders."""
def __init__(self, name):
SlimeFolder.__init__(self)
if not os.path.isabs(name):
name = os.path.join(os.getcwd(), name)
self._name = name
self._is_dir = 0
def open(self):
self._is_open = 1
if os.path.isdir(self._name):
self._is_dir = 1
else:
self._is_dir = 0
self._fp = open(self._name, 'r+')
def close(self):
for msg in self._messages:
msg.uncache_headers()
if not self._is_dir:
self._fp = None
self._is_open = 0
def rescan_messages(self):
self._assert_open()
if not self._is_dir:
new_messages = []
mb = UnixMailbox(self._fp)
while 1:
m = mb.next()
if not m:
break
mm = SlimeMessage_Unix(self, m.fp)
for msg in self._messages:
if mm._checksum == msg._checksum:
mm = msg
break
mm.set_status(mm["status"])
new_messages.append(mm)
self._messages = new_messages
self._threads = []
def rescan_subfolders(self):
self._assert_open()
if self._is_dir:
list = []
for pathname in os.listdir(self._name):
p = os.path.join(self._name, pathname)
list.append(SlimeFolder_Unix(p))
self._subfolders = list
def add_message(self, file):
self._assert_open()
dummy = mhlib.Message('NONE', 1, file)
self._fp.seek(0,2)
start = self._fp.tell()
self._fp.write(self._make_separator(dummy))
del dummy
file.seek(0,0)
while 1:
buf = file.read(16*1024)
if not buf:
break
self._fp.write(buf)
end = self._fp.tell()
subfile = _Subfile(self._fp, start, end)
msg = SlimeMessage_Unix(self, subfile)
self._messages.append(msg)
return msg
def commit_changes(self):
self._assert_open()
if not self._is_dir and self._dirty:
newname = self._name + ".new"
f = open(newname, "w")
for msg in self._messages:
if not msg.has_status("D"):
f.write(self._make_separator(msg))
f.write(msg.getfulltext())
f.close()
os.rename(newname, self._name)
self._messages = []
self._dirty = 0
self.open()
self.rescan_messages()
self.rescan_subfolders()
def _make_separator(self, msg):
date = msg.getdate("date")
if date is None:
date = (1970,1,1,0,0,0,3,1,0)
mon = ["", "Jan", "Feb", "Mar", "Apr", "May",
"Jun", "Jul", "Aug", "Sep", "Oct",
"Nov", "Dec"][date[1]]
dow = ["Mon", "Tue", "Wed", "Thu", "Fri",
"Sat", "Sun"][date[6]]
year = date[0]
if year < 1900:
year = year + 1900
name, addr = msg.getaddr("from")
if not addr:
addr = "foo"
return "From %s %s %s %2d %2d:%02d:%02d %d\n" % \
(addr, dow, mon, date[2], date[3], date[4],
date[5], year)
class SlimeMessage_Unix(SlimeMessage):
"""A SlimeMessage interface to messages in Unix mailbox folders."""
def __init__(self, folder, subfile):
SlimeMessage.__init__(self, folder)
self._start = subfile.start
self._stop = subfile.stop
self._checksum = self._start
def _open(self):
self._folder._assert_open()
self._open_count = self._open_count + 1
if not self._msg:
self._fp = _Subfile(self._folder._fp,
self._start, self._stop)
self._msg = mhlib.Message('NONE', 1, self._fp)
# make sure stuff is cached
if not self._cached_date:
self._cache_headers()
def _close(self):
self._folder._assert_open()
self._open_count = self._open_count - 1
if self._open_count == 0:
self._msg = None
self._fp.close()
def main():
f = SlimeFolder_Unix(os.path.expanduser("~/mail"))
f.open()
f.rescan_subfolders()
for sub in f.list_all_subfolders():
sub.open()
sub.rescan_messages()
for msg in sub.list_all_messages()[:2]:
print sub._name, msg["subject"]
sub.close()
print
f.close()
def profile_main():
import time
f = unix_top_folder("~/mail")
f.open()
f.rescan_subfolders()
for sub in f.list_all_subfolders():
if repr(sub) == "/home/liw/mail/yow3":
sub.open()
print "computing threads"
start = time.time()
sub.rescan_messages()
sub.list_all_threads()
end = time.time()
print "threads computed", end - start
sub.close()
f.close()
if __name__ == "__main__":
main()
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