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import logging
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from paste.urlparser import PkgResourcesParser
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import paste.fileapp
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from pylons import tmpl_context as c, app_globals as g, request, config
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from pylons.controllers.util import forward
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from pylons.i18n.translation import _
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from pylons_app.lib.base import BaseController, render
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from pylons.middleware import error_document_template, media_path
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import cgi
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import os
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log = logging.getLogger(__name__)
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class ErrorController(BaseController):
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"""
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Generates error documents as and when they are required.
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The ErrorDocuments middleware forwards to ErrorController when error
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related status codes are returned from the application.
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This behaviour can be altered by changing the parameters to the
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ErrorDocuments middleware in your config/middleware.py file.
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"""
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#
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def __before__(self):
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c.repos_prefix = config['repos_name']
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c.staticurl = g.statics
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c.repo_name = request.environ['pylons.original_request']\
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.environ.get('PATH_INFO').split('/')[-1]
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def document(self):
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resp = request.environ.get('pylons.original_response')
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log.debug(resp.status)
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e = request.environ
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c.serv_p = r'%(protocol)s://%(host)s/' % {
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'protocol': e.get('wsgi.url_scheme'),
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'host':e.get('HTTP_HOST'),
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}
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if resp.status_int == 404:
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return render('/errors/error_404.html')
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c.error_message = cgi.escape(request.GET.get('code', str(resp.status)))
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c.error_explanation = self.get_error_explanation(resp.status_int)
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#redirect to when error with given seconds
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c.redirect_time = 0
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c.redirect_module = _('Home page')# name to what your going to be redirected
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c.url_redirect = "/"
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return render('/errors/error_document.html')
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def img(self, id):
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"""Serve Pylons' stock images"""
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return self._serve_file(os.path.join(media_path, 'img', id))
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def style(self, id):
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"""Serve Pylons' stock stylesheets"""
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return self._serve_file(os.path.join(media_path, 'style', id))
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def _serve_file(self, path):
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"""Call Paste's FileApp (a WSGI application) to serve the file
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at the specified path
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"""
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fapp = paste.fileapp.FileApp(path)
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return fapp(request.environ, self.start_response)
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def get_error_explanation(self, code):
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''' get the error explanations of int codes
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[400, 401, 403, 404, 500]'''
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try:
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code = int(code)
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except:
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code = 500
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if code == 400:
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return _('The request could not be understood by the server due to malformed syntax.')
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if code == 401:
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return _('Unathorized access to resource')
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if code == 403:
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return _("You don't have permission to view this page")
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if code == 404:
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return _('The resource could not be found')
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if code == 500:
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return _('The server encountered an unexpected condition which prevented it from fulfilling the request.')
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