forked from pfibiger/grumblechat
/
message.py
205 lines (185 loc) · 8.93 KB
/
message.py
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from google.appengine.api import users
from google.appengine.ext import webapp
from google.appengine.ext.db import Key
from google.appengine.ext.webapp import template
from google.appengine.ext.webapp.util import run_wsgi_app
from datetime import datetime
from django.utils import simplejson
from models import *
from utils import *
class MessageCollectionHandler(webapp.RequestHandler):
def post(self, room_slug):
user = users.get_current_user()
sender = Account.all().filter('user =', user).get()
room = Room.get_by_key_name(room_slug)
timestamp = datetime.now()
content = self.request.get('content')
extra = self.request.get('extra')
if not sender:
# no account for this user
self.response.out.write(template.render('templates/account_create.html', None))
elif len(content):
# only create message if content is not empty
message = Message(sender=sender, room=room, timestamp=timestamp, content=content,
event=Message_event_codes['message'], extra=extra)
message.put()
self.redirect('/room/' + room_key)
class APIMessageHandler(webapp.RequestHandler):
def get(self, room_slug, message_key):
room = Room.get_by_key_name(room_slug)
if not room:
self.error(404)
self.response.out.write("no such room")
return
message = Message.all().filter('__key__ =', Key(message_key), 'room =', room).get()
if not message:
self.error(404)
self.response.out.write("no such message")
return
message = transform_message(message)
url = "/api/"
sender_url = url + "account/" + str(message.sender.key())
room_url = url + "room/" + str(message.room.key().name())
payload = {'timestamp' : message.timestamp.isoformat(), 'content' : message.content,
'sender' : sender_url, 'room' : room_url, 'event' : Message_event_names[message.event],
'extra' : extra, 'id' : message.key().id()}
json = simplejson.dumps(payload)
self.response.out.write(json)
class APIMessageCollectionHandler(webapp.RequestHandler):
def post(self, room_slug):
user = users.get_current_user()
sender = Account.all().filter('user =', user).get()
room = Room.get_by_key_name(room_slug)
timestamp = datetime.now()
content = self.request.get('message')
payload = {}
if not sender:
# no account for this user
payload = {'response_status' : "No Account Found"}
elif len(content):
# only create message if content is not empty
message = Message(sender=sender, room=room, timestamp=timestamp, content=content,
event=Message_event_codes['message'])
message.put()
payload = {'response_status' : "OK", 'message' : content, 'id' : message.key().id(),
'timestamp' : message.timestamp.isoformat()}
else:
payload = {'response_status' : "Unknown Error"}
json = simplejson.dumps(payload)
self.response.out.write(json)
def get(self, room_slug):
room = Room.get_by_key_name(room_slug)
if not room:
# room doesn't exist
self.error(404)
self.response.out.write("no such room")
else:
account = get_account()
roomlist = RoomList.all().filter('account =', account).filter('room =', room).get()
roomlist.update_presence()
since_message_key = self.request.get('since')
date_start = self.request.get('start')
date_end = self.request.get('end')
query_terms = self.request.get('q')
messages = Message.all().filter('room =', room).order('timestamp')
next_url = None
if since_message_key != '':
# restrict by newer than message (specified by key)
# FIXME timestamps might collide, so we need to introduce
# a new column populated by a counter (sharded?)
since_message = Message.all().filter('__key__ =', Key(since_message_key)).get()
# need to enumerate query results to access last message
messages = [m for m in messages.filter('timestamp >', since_message.timestamp)]
if messages:
next_url = 'room/%s/msg/?since=%s' % (room.key().name(), messages[-1].key())
roomlist.status = self.request.get( 'status' )
roomlist.status_start_time = self.request.get( 'status_start_time' )
elif date_start != '' and date_end != '':
# restrict by starting/ending datetime
iso8601_format = '%Y-%m-%dT%H:%M:%S'
dt_start = datetime.strptime(date_start, iso8601_format)
dt_end = datetime.strptime(date_end, iso8601_format)
messages = messages.filter('timestamp >=', dt_start).filter('timestamp <=', dt_end)
elif query_terms != '':
# TODO filter by query terms
pass
else:
# return (up to) last 70 messages
# FIXME should define '70' as a constant
# need to enumerate query results to access last message
messages = [m for m in reversed(Message.all().filter('room =', room).order('-timestamp').fetch(70))]
if messages:
next_url = 'room/%s/msg/?since=%s' % (room.key().name(), messages[-1].key())
else:
next_url = 'room/%s/msg/' % (room.key().name())
url_base = "/api/"
payload = {}
if messages:
payload['messages'] = []
for message in messages:
message = transform_message(message)
sender_url = url_base + "account/" + str(message.sender.key())
room_url = url_base + "room/" + str(message.room.key().name())
message_data = {
'timestamp' : message.timestamp.isoformat(),
'content' : message.content,
'sender' : sender_url,
'sender_name' : message.sender.nickname,
'room' : room_url,
'event' : Message_event_names[message.event],
'extra' : message.extra,
'id' : message.key().id(),
}
payload['messages'].append(message_data)
if next_url:
payload['next'] = url_base + next_url
json = simplejson.dumps(payload)
self.response.out.write(json)
class TopicHandler(webapp.RequestHandler):
def post(self, room_slug):
user = users.get_current_user()
sender = Account.all().filter('user =', user).get()
room = Room.get_by_key_name(room_slug)
topic = self.request.get('topic')
if not sender:
# no account for this user
self.response.out.write(template.render('templates/account_create.html', None))
elif len(topic):
room.topic = topic
room.put()
self.redirect('/room/' + room_key)
class APITopicHandler(webapp.RequestHandler):
def post(self, room_slug):
user = users.get_current_user()
sender = Account.all().filter('user =', user).get()
room = Room.get_by_key_name(room_slug)
topic = self.request.get('topic')
timestamp = datetime.now()
#content = self.request.get('message')
payload = {}
if not sender:
# no account for this user
payload = {'response_status' : "No Account Found"}
elif len(topic):
# only create message if topic is not empty
room.topic = topic
room.put()
message = Message(sender=sender, room=room, timestamp=timestamp, content=topic,
event=Message_event_codes['topic'])
message.put()
payload = {'response_status' : "OK", 'message' : topic, 'timestamp' : timestamp.isoformat()}
else:
payload = {'response_status' : "Unknown Error"}
json = simplejson.dumps(payload)
self.response.out.write(json)
application = webapp.WSGIApplication([(r'/room/([^/]+)/msg', MessageCollectionHandler),
(r'/room/([^/]+)/topic',TopicHandler),
(r'/api/room/([^/]+)/topic',APITopicHandler),
(r'/api/room/([^/]+)/msg/', APIMessageCollectionHandler),
(r'/api/room/([^/]+)/msg/([^/]+)', APIMessageHandler),
],
debug=True)
def main():
run_wsgi_app(application)
if __name__ == '__main__':
main()