Revision 25d08a62 poller/views.py
| b/poller/views.py | ||
|---|---|---|
| 1 | 1 |
from gevent import monkey |
| 2 | 2 |
monkey.patch_all() |
| 3 | 3 |
from gevent.pool import Pool |
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import json |
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import uuid |
| 6 | 7 |
import simplejson |
| ... | ... | |
| 22 | 23 |
logger.setLevel(logging.DEBUG) |
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def create_message(from_, body):
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data = {'id': str(uuid.uuid4()), 'from': from_, 'body': body}
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def create_message(body, user):
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data = {'id': str(uuid.uuid4()), 'body': body, 'user':user}
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data['html'] = render_to_string('poll_message.html', dictionary={'message': data})
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return data |
| 29 | 30 |
|
| ... | ... | |
| 36 | 37 |
cache_size = 200 |
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def __init__(self): |
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self.user_cache = {}
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self.user_cursor = {}
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self.cache = [] |
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self.new_message_event = Event() |
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self.new_message_event = None |
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self.new_message_user_event = {}
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def main(self, request): |
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if self.cache: |
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request.session['cursor'] = self.cache[-1]['id'] |
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return render_to_response('poll.html', {'messages': self.cache})
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if self.user_cache:
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request.session['cursor'] = self.user_cache[-1]['id']
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return render_to_response('poll.html', {'messages': self.user_cache})
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@csrf_exempt |
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def message_existing(self, request): |
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if self.cache: |
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request.session['cursor'] = self.cache[-1]['id'] |
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return json_response({'messages': self.cache})
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try: |
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user = request.user.username |
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except: |
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user = None |
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self.new_message_user_event[user] = Event() |
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try: |
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if self.user_cache[user]: |
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self.user_cursor[user] = self.user_cache[user][-1]['id'] |
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except: |
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self.user_cache[user] = [] |
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self.user_cursor[user] = '' |
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return json_response({'messages': self.user_cache[user]})
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@csrf_exempt |
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def message_new(self, request=None, mesg=None): |
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if request: |
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name = request.META.get('REMOTE_ADDR') or 'Anonymous'
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forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
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if forwarded_for and name == '127.0.0.1': |
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name = forwarded_for |
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msg = create_message(name, request.POST['body']) |
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def message_new(self, mesg=None): |
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if mesg: |
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message = mesg |
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message = mesg['message'] |
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user = mesg['username'] |
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now = datetime.datetime.now() |
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msg = create_message("[%s]"%now.strftime("%Y-%m-%d %H:%M:%S"), message)
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self.cache.append(msg) |
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if len(self.cache) > self.cache_size: |
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self.cache = self.cache[-self.cache_size:] |
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self.new_message_event.set() |
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self.new_message_event.clear() |
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msg = create_message("[%s]: %s"%(now.strftime("%Y-%m-%d %H:%M:%S"),message), user)
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try: |
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isinstance(self.user_cache[user], list) |
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except: |
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self.user_cache[user] = [] |
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self.user_cache[user].append(msg) |
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if self.user_cache[user][-1] == self.user_cache[user][0]: |
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self.user_cursor[user] = self.user_cache[user][-1]['id'] |
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else: |
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self.user_cursor[user] = self.user_cache[user][-2]['id'] |
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# self.cache.append(msg) |
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if len(self.user_cache[user]) > self.cache_size: |
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self.user_cache[user] = self.user_cache[user][-self.cache_size:] |
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self.new_message_user_event[user].set() |
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self.new_message_user_event[user].clear() |
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return json_response(msg) |
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@csrf_exempt |
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def message_updates(self, request): |
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cursor = request.session.get('cursor')
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if not self.cache or cursor == self.cache[-1]['id']: |
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self.new_message_event.wait() |
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assert cursor != self.cache[-1]['id'], cursor |
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cursor = {}
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try: |
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user = request.user.username |
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except: |
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user = None |
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cursor[user] = self.user_cursor[user] |
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try: |
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if not isinstance(self.user_cache[user], list): |
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self.user_cache[user] = [] |
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except: |
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self.user_cache[user] = [] |
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if not self.user_cache[user] or cursor[user] == self.user_cache[user][-1]['id']: |
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self.new_message_user_event[user].wait() |
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# self.new_message_event.wait() |
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# assert cursor[user] != self.user_cache[user][-1]['id'], cursor[user] |
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try: |
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for index, m in enumerate(self.cache):
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if m['id'] == cursor: |
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return json_response({'messages': self.cache[index + 1:]})
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return json_response({'messages': self.cache})
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for index, m in enumerate(self.user_cache[user]):
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if m['id'] == cursor[user]:
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return json_response({'messages': self.user_cache[user][index + 1:]})
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return json_response({'messages': self.user_cache[user]})
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finally: |
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if self.cache:
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request.session['cursor'] = self.cache[-1]['id']
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else: |
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request.session.pop('cursor', None)
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if self.user_cache[user]:
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self.user_cursor[user] = self.user_cache[user][-1]['id']
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# else:
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# request.session.pop('cursor', None)
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def monitor_polls(self, polls=None): |
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b = beanstalkc.Connection() |
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b.watch(settings.POLLS_TUBE) |
| 92 | 123 |
while True: |
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job = b.reserve() |
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msg = job.body |
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print job.body |
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msg = json.loads(job.body) |
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job.bury() |
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self.message_new(None, msg)
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self.message_new(msg) |
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def start_polling(self): |
Also available in: Unified diff