1 #

     2 # Copyright (c) 2008-2018 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 

    16 # import standard library

    17 from pyquery import PyQuery

    18 

    19 # import interfaces

    20 from pyams_sequence.interfaces import ISequentialIntIds

    21 from pyams_utils.interfaces.text import IHTMLRenderer

    22 from pyams_utils.interfaces.url import DISPLAY_CONTEXT

    23 from pyams_workflow.interfaces import IWorkflowPublicationInfo

    24 from pyramid.interfaces import IRequest

    25 

    26 # import packages

    27 from pyams_sequence.utility import get_reference_target

    28 from pyams_utils.adapter import adapter_config, ContextRequestAdapter

    29 from pyams_utils.registry import get_utility

    30 from pyams_utils.url import relative_url

    31 

    32 

    33 @adapter_config(name='oid_to_href', context=(str, IRequest), provides=IHTMLRenderer)

    34 class OIDHTMLRenderer(ContextRequestAdapter):

    35     """An HTML renderer converting all "oid://" URLs to internal relative links"""

    36 

    37     def render(self):

    38         context = self.request.annotations.get(DISPLAY_CONTEXT, self.request.context)

    39         html = PyQuery('<div>{0}</div>'.format(self.context))

    40         sequence = get_utility(ISequentialIntIds)

    41         for link in html('a[href]'):

    42             href = link.attrib['href']

    43             if href.startswith('oid://'):

    44                 oid = sequence.get_full_oid(href.split('//', 1)[1])

    45                 target = get_reference_target(oid)

    46                 if target is not None:

    47                     publication_info = IWorkflowPublicationInfo(target, None)

    48                     if (publication_info is not None) and publication_info.is_visible(self.request):

    49                         link.attrib['href'] = relative_url(target, self.request, context)

    50                         continue

    51                 # invalid link => remove href!

    52                 del link.attrib['href']

    53         return html.html()