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notifications.py
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#!/usr/bin/env python
# coding=utf-8
import os
import re
import time
import datetime
import hashlib
import string
import random
from google.appengine.ext import webapp
from google.appengine.api import memcache
from google.appengine.ext import db
from google.appengine.ext.webapp import util
from google.appengine.ext.webapp import template
from google.appengine.api.labs import taskqueue
from v2ex.babel import Member
from v2ex.babel import Counter
from v2ex.babel import Section
from v2ex.babel import Node
from v2ex.babel import Topic
from v2ex.babel import Reply
from v2ex.babel import Note
from v2ex.babel import Notification
from v2ex.babel import SYSTEM_VERSION
from v2ex.babel.security import *
from v2ex.babel.ua import *
from v2ex.babel.da import *
from v2ex.babel.l10n import *
from v2ex.babel.ext.cookies import Cookies
from v2ex.babel.handlers import BaseHandler
import config
template.register_template_library('v2ex.templatetags.filters')
class NotificationsHandler(BaseHandler):
def get(self):
if self.member:
if self.member.private_token is None:
self.member.private_token = hashlib.sha256(str(self.member.num) + ';' + config.site_key).hexdigest()
self.member.put()
q = db.GqlQuery("SELECT * FROM Notification WHERE for_member_num = :1 ORDER BY num DESC LIMIT 50", self.member.num)
notifications = []
i = 0
for n in q:
if i == 0:
if self.member.notification_position != n.num:
self.member.notification_position = n.num
self.member.put()
if n.type == 'reply':
n.text = u'<a href="/member/' + n.member.username + u'"><strong>' + n.member.username + u'</strong></a> 在 <a href="' + n.link1 + '">' + self.escape(n.label1) + u'</a> 里回复了你'
notifications.append(n)
if n.type == 'mention_reply':
n.text = u'<a href="/member/' + n.member.username + u'"><strong>' + n.member.username + u'</strong></a> 在回复 <a href="' + n.link1 + '">' + self.escape(n.label1) + u'</a> 时提到了你'
notifications.append(n)
if n.type == 'mention_topic':
n.text = u'<a href="/member/' + n.member.username + u'"><strong>' + n.member.username + u'</strong></a> 在创建主题 <a href="' + n.link1 + '">' + self.escape(n.label1) + u'</a> 时提到了你'
notifications.append(n)
i = i + 1
self.member.notifications = 0
self.member.put()
memcache.set('Member_' + str(self.member.num), self.member, 86400)
self.values['notifications'] = notifications
self.set_title(u'提醒系统')
self.finalize(template_name='notifications')
else:
self.redirect('/signin')
class NotificationsCheckHandler(BaseHandler):
def post(self, member_key):
member = db.get(db.Key(member_key))
if member:
if member.notification_position is None:
member.notification_position = 0
q = db.GqlQuery("SELECT * FROM Notification WHERE for_member_num = :1 AND num > :2 ORDER BY num DESC", member.num, member.notification_position)
count = q.count()
if count > 0:
member.notifications = count
member.put()
memcache.set('Member_' + str(member.num), member, 86400)
# For mentions in reply content
class NotificationsReplyHandler(BaseHandler):
def post(self, reply_key):
reply = db.get(db.Key(reply_key))
topic = GetKindByNum('Topic', reply.topic_num)
ms = re.findall('(@[a-zA-Z0-9\_]+\.?)\s?', reply.content)
keys = []
if (len(ms) > 0):
for m in ms:
m_id = re.findall('@([a-zA-Z0-9\_]+\.?)', m)
if (len(m_id) > 0):
if (m_id[0].endswith('.') != True):
member_username = m_id[0]
member = GetMemberByUsername(member_username)
if member:
if member.key() != topic.member.key() and member.key() != reply.member.key() and member.key() not in keys:
q = db.GqlQuery('SELECT * FROM Counter WHERE name = :1', 'notification.max')
if (q.count() == 1):
counter = q[0]
counter.value = counter.value + 1
else:
counter = Counter()
counter.name = 'notification.max'
counter.value = 1
q2 = db.GqlQuery('SELECT * FROM Counter WHERE name = :1', 'notification.total')
if (q2.count() == 1):
counter2 = q2[0]
counter2.value = counter2.value + 1
else:
counter2 = Counter()
counter2.name = 'notification.total'
counter2.value = 1
notification = Notification(parent=member)
notification.num = counter.value
notification.type = 'mention_reply'
notification.payload = reply.content
notification.label1 = topic.title
notification.link1 = '/t/' + str(topic.num) + '#reply' + str(topic.replies)
notification.member = reply.member
notification.for_member_num = member.num
keys.append(str(member.key()))
counter.put()
counter2.put()
notification.put()
for k in keys:
taskqueue.add(url='/notifications/check/' + k)
# For mentions in topic title and content
class NotificationsTopicHandler(BaseHandler):
def post(self, topic_key):
topic = db.get(db.Key(topic_key))
combined = topic.title + " " + topic.content
ms = re.findall('(@[a-zA-Z0-9\_]+\.?)\s?', combined)
keys = []
if (len(ms) > 0):
for m in ms:
m_id = re.findall('@([a-zA-Z0-9\_]+\.?)', m)
if (len(m_id) > 0):
if (m_id[0].endswith('.') != True):
member_username = m_id[0]
member = GetMemberByUsername(member_username)
if member:
if member.key() != topic.member.key() and member.key() not in keys:
q = db.GqlQuery('SELECT * FROM Counter WHERE name = :1', 'notification.max')
if (q.count() == 1):
counter = q[0]
counter.value = counter.value + 1
else:
counter = Counter()
counter.name = 'notification.max'
counter.value = 1
q2 = db.GqlQuery('SELECT * FROM Counter WHERE name = :1', 'notification.total')
if (q2.count() == 1):
counter2 = q2[0]
counter2.value = counter2.value + 1
else:
counter2 = Counter()
counter2.name = 'notification.total'
counter2.value = 1
notification = Notification(parent=member)
notification.num = counter.value
notification.type = 'mention_topic'
notification.payload = topic.content
notification.label1 = topic.title
notification.link1 = '/t/' + str(topic.num) + '#reply' + str(topic.replies)
notification.member = topic.member
notification.for_member_num = member.num
keys.append(str(member.key()))
counter.put()
counter2.put()
notification.put()
for k in keys:
taskqueue.add(url='/notifications/check/' + k)
class NotificationsFeedHandler(BaseHandler):
def head(self, private_token):
pass
def get(self, private_token):
q = db.GqlQuery("SELECT * FROM Member WHERE private_token = :1", private_token)
count = q.count()
if count > 0:
member = q[0]
q = db.GqlQuery("SELECT * FROM Notification WHERE for_member_num = :1 ORDER BY num DESC LIMIT 50", member.num)
notifications = []
i = 0
for n in q:
if n.type == 'reply':
n.title = u'' + n.member.username + u' 在 ' + self.escape(n.label1) + u' 里回复了你'
n.text = u'<a href="/member/' + n.member.username + u'"><strong>' + n.member.username + u'</strong></a> 在 <a href="' + n.link1 + '">' + self.escape(n.label1) + u'</a> 里回复了你'
notifications.append(n)
if n.type == 'mention_reply':
n.title = u'' + n.member.username + u' 在回复 ' + self.escape(n.label1) + u' 时提到了你'
n.text = u'<a href="/member/' + n.member.username + u'"><strong>' + n.member.username + u'</strong></a> 在回复 <a href="' + n.link1 + '">' + self.escape(n.label1) + u'</a> 时提到了你'
notifications.append(n)
i = i + 1
self.values['notifications'] = notifications
self.response.headers['Content-type'] = 'application/xml;charset=UTF-8'
self.values['member'] = member
self.finalize(template_name='notifications', template_root='feed', template_type='xml')
def main():
application = webapp.WSGIApplication([
('/notifications/?', NotificationsHandler),
('/notifications/check/(.+)', NotificationsCheckHandler),
('/notifications/reply/(.+)', NotificationsReplyHandler),
('/notifications/topic/(.+)', NotificationsTopicHandler),
('/n/([a-z0-9]+).xml', NotificationsFeedHandler)
],
debug=True)
util.run_wsgi_app(application)
if __name__ == '__main__':
main()