debianmemberportfolio/ddportfolioservice/controllers/error.py

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# -*- python -*-
# -*- coding: utf-8 -*-
#
# DDPortfolio service ErrorController
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# Copyright © 2009, 2010 Jan Dittberner <jan@dittberner.info>
#
# This file is part of DDPortfolio service.
#
# DDPortfolio service is free software: you can redistribute it and/or
# modify it under the terms of the GNU Affero General Public License
# as published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# DDPortfolio service is distributed in the hope that it will be
# useful, but WITHOUT ANY WARRANTY; without even the implied warranty
# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program. If not, see
# <http://www.gnu.org/licenses/>.
#
import cgi
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from paste.urlparser import PkgResourcesParser
from pylons import request
from pylons.controllers.util import forward
from pylons.middleware import error_document_template
from webhelpers.html.builder import literal
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from ddportfolioservice.lib.base import BaseController
class ErrorController(BaseController):
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"""Generates error documents as and when they are required.
The ErrorDocuments middleware forwards to ErrorController when error
related status codes are returned from the application.
This behaviour can be altered by changing the parameters to the
ErrorDocuments middleware in your config/middleware.py file.
"""
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def document(self):
"""Render the error document"""
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resp = request.environ.get('pylons.original_response')
content = literal(resp.body) or cgi.escape(request.GET.get('message', ''))
page = error_document_template % \
dict(prefix=request.environ.get('SCRIPT_NAME', ''),
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code=cgi.escape(request.GET.get('code', str(resp.status_int))),
message=content)
return page
def img(self, id):
"""Serve Pylons' stock images"""
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return self._serve_file('/'.join(['media/img', id]))
def style(self, id):
"""Serve Pylons' stock stylesheets"""
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return self._serve_file('/'.join(['media/style', id]))
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def _serve_file(self, path):
"""Call Paste's FileApp (a WSGI application) to serve the file
at the specified path
"""
request.environ['PATH_INFO'] = '/%s' % path
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return forward(PkgResourcesParser('pylons', 'pylons'))