import cgi 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 from scribeengine.lib.base import BaseController class ErrorController(BaseController): """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. """ def document(self): """Render the error document""" 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', ''), code=cgi.escape(request.GET.get('code', str(resp.status_int))), message=content) return page def img(self, id): """Serve Pylons' stock images""" return self._serve_file('/'.join(['media/img', id])) def style(self, id): """Serve Pylons' stock stylesheets""" return self._serve_file('/'.join(['media/style', id])) 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 return forward(PkgResourcesParser('pylons', 'pylons'))