1 #

     2 # Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>

     3 # All Rights Reserved.

     4 #

     5 # This software is subject to the provisions of the Zope Public License,

     6 # Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.

     7 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

     8 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

     9 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

    10 # FOR A PARTICULAR PURPOSE.

    11 #

    12 

    13 __docformat__ = 'restructuredtext'

    14 

    15 from pyams_skin.interfaces.extension import ACTIVATED_ON_BACK, ACTIVATED_ON_FRONT, IGoogleAnalyticsInfo

    16 from pyams_skin.interfaces.viewlet import IJSExtensionsViewletManager

    17 from pyams_skin.layer import IPyAMSLayer

    18 from pyams_template.template import template_config

    19 from pyams_viewlet.viewlet import Viewlet, viewlet_config

    20 

    21 try:

    22     from pyams_zmi.layer import IAdminLayer

    23 except ImportError:

    24     IAdminLayer = None

    25 

    26 

    27 @viewlet_config(name='analytics', manager=IJSExtensionsViewletManager)

    28 @template_config(template='templates/analytics.pt', layer=IPyAMSLayer)

    29 class GoogleAnalyticsViewlet(Viewlet):

    30     """Google Analytics viewlet"""

    31 

    32     def __new__(cls, context, request, view, manager):

    33         info = IGoogleAnalyticsInfo(request.root)

    34         if not info.enabled:

    35             return None

    36         if IAdminLayer is None:

    37             if info.activation_mode == ACTIVATED_ON_BACK:

    38                 return None

    39         else:

    40             if ((info.activation_mode == ACTIVATED_ON_FRONT) and IAdminLayer.providedBy(request)) or \

    41                ((info.activation_mode == ACTIVATED_ON_BACK) and not IAdminLayer.providedBy(request)):

    42                 return None

    43         if info.on_accepted_cookie:

    44             cookie_value = request.cookies.get(info.cookie_name)

    45             if cookie_value == info.rejected_cookie_value:

    46                 return None

    47         return Viewlet.__new__(cls)

    48 

    49     @property

    50     def config(self):

    51         return IGoogleAnalyticsInfo(self.request.root)