class Maildir:
def __init__(self, basedir):
self.basedir = basedir
self.newdir = os.path.join(basedir, "new")
self.files = []
self.pollinterval = 10 # only used if we don't have DNotify
self.running = 0
def start(self):
"""You must run start to receive any messages."""
if self.running:
return
self.running = 1
if not os.path.isdir(self.basedir) or not os.path.isdir(self.newdir):
raise "invalid maildir '%s'" % basedir
# we must hold an fd open on the directory, so we can get notified
# when it changes.
if have_dnotify:
self.dnotify = DNotify(self.newdir, self.dnotify_callback,
[DNotify.DN_CREATE])
self.poll()
def startTimeout(self):
raise NotImplemented
def stopTimeout(self):
raise NotImplemented
def dnotify_callback(self):
print "callback"
self.poll()
raise NotImplemented
def stop(self):
if have_dnotify:
self.dnotify.remove()
del(self.dnotify)
else:
self.stopTimeout()
self.running = 0
def poll(self):
# see what's new
for f in self.files:
if not os.path.isfile(os.path.join(self.newdir, f)):
self.files.remove(f)
newfiles = []
for f in os.listdir(self.newdir):
if not f in self.files:
newfiles.append(f)
self.files.extend(newfiles)
for n in newfiles:
self.messageReceived(os.path.join("new",n))
if not have_dnotify:
self.startTimeout()
def messageReceived(self, filename):
"""Called when a new file is noticed. Override it in subclasses."""
print filename
def start(self):
"""You must run start to receive any messages."""
if self.running:
return
self.running = 1
if not os.path.isdir(self.basedir) or not os.path.isdir(self.newdir):
raise "invalid maildir '%s'" % basedir
# we must hold an fd open on the directory, so we can get notified
# when it changes.
if have_dnotify:
self.dnotify = DNotify(self.newdir, self.dnotify_callback,
[DNotify.DN_CREATE])
self.poll()
