Source Code for Module Products.ZenUtils.events

 1  ############################################################################## 
 2  #  
 3  # Copyright (C) Zenoss, Inc. 2012, all rights reserved. 
 4  #  
 5  # This content is made available according to terms specified in 
 6  # License.zenoss under the directory where your Zenoss product is installed. 
 7  #  
 8  ############################################################################## 
 9   
10   
11  from Products.PluggableAuthService.interfaces.events import IUserLoggedInEvent 
12  from Products.PluggableAuthService.interfaces.events import IUserLoggedOutEvent 
13  from Products.PluggableAuthService.events import PASEvent 
14  from zope.interface import implements, Interface, Attribute 
15  from zope.event import notify 
16  from ZODB.transact import transact 
17   
18 -class UserLoggedInEvent(PASEvent): 
19      """ 
20      Login notification event. 
21   
22      Subscribe to this to run code when a user logs in. 
23      The username can be obtained in the handler via: evt.object.id 
24   
25      WARNING: Currently it doesn't notify when switching directly from 
26               a non-admin user to the admin user without logging out, 
27               because we're unable to determine whether the login succeeded. 
28      """ 
29      implements(IUserLoggedInEvent) 
30   
31   
32 -class UserLoggedOutEvent(PASEvent): 
33      """ 
34      Manual logout notification event. 
35   
36      This does not fire for session timeouts. 
37      """ 
38      implements(IUserLoggedOutEvent) 
39   
40 -class IZopeApplicationOpenedEvent(Interface): 
41      """ 
42      Returns the Zope application. 
43      """ 
44      app = Attribute("The Zope Application") 
45   
46 -class ZopeApplicationOpenedEvent(object): 
47      implements(IZopeApplicationOpenedEvent) 
48   
49 -    def __init__(self, app): 
50          self.app = app 
51   
52 -def notifyZopeApplicationOpenedSubscribers(event): 
53      """ 
54      Re-fires the IDatabaseOpenedWithRoot notification to subscribers with an 
55      open handle to the application defined in the database. 
56      """ 
57      db = event.database 
58      conn = db.open() 
59      try: 
60          app = conn.root()['Application'] 
61          transact(notify)(ZopeApplicationOpenedEvent(app)) 
62      finally: 
63          conn.close() 
64