Added the "maps" Pylons project.

[dead/census-tools.git] / www / maps / maps / controllers / error.py

diff --git a/www/maps/maps/controllers/error.py b/www/maps/maps/controllers/error.py
new file mode 100644 (file)
index 0000000..b98525c
--- /dev/null
+++ b/www/maps/maps/controllers/error.py
@@ -0,0 +1,46 @@
+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 maps.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'))