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# -*- coding: utf-8 -*-
#
# Copyright (C) 2010 Wikkid Developers
#
# This software is licensed under the GNU Affero General Public License
# version 3 (see the file LICENSE).
"""View classes to control the rendering of wiki pages."""
from webob.exc import HTTPTemporaryRedirect
from wikkid.formatter.registry import get_wiki_formatter
from wikkid.interface.resource import IWikiTextFile
from wikkid.view.base import BaseView
def format_content(bytes, base_name, default_format):
""" Format the content with the right formatter.
Check the first line of the content to see if it specifies a
formatter. The default is currently ReST, but we should have it
configurable shortly.
"""
content, formatter = get_wiki_formatter(bytes, default_format)
return formatter.format(base_name, content)
class WikiPage(BaseView):
"""A wiki page is a page that is going to be rendered for viewing."""
for_interface = IWikiTextFile
name = 'view'
is_default = True
template = 'view_page'
@property
def content(self):
bytes = self.context.get_bytes()
try:
text = bytes.decode('utf-8')
except UnicodeDecodeError:
try:
text = bytes.decode('latin-1')
except UnicodeDecodeError:
text = bytes.decode('ascii', 'replace')
default_format = self.execution_context.default_format
return format_content(text, self.context.base_name, default_format)
def _render(self, skin):
"""If the page is not being viewed with the preferred path, redirect.
For example, /FrontPage.txt will redirect to /FrontPage
"""
preferred = self.context.preferred_path
if self.context.path != preferred:
location = self.canonical_url(self.context)
raise HTTPTemporaryRedirect(location=location)
else:
return super(WikiPage, self)._render(skin)
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