# 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/>.
-from webob import Response, exc
+import werkzeug.utils
+from werkzeug.wrappers import Response as wz_Response
from mediagoblin.tools.template import render_template
+from mediagoblin.tools.translate import (lazy_pass_to_ugettext as _,
+ pass_to_ugettext)
+
+class Response(wz_Response):
+ """Set default response mimetype to HTML, otherwise we get text/plain"""
+ default_mimetype = u'text/html'
def render_to_response(request, template, context, status=200):
status=status)
-def render_404(request):
- """
- Render a 404.
+def render_error(request, status=500, title=_('Oops!'),
+ err_msg=_('An error occured')):
+ """Render any error page with a given error code, title and text body
+
+ Title and description are passed through as-is to allow html. Make
+ sure no user input is contained therein for security reasons. The
+ description will be wrapped in <p></p> tags.
"""
- return render_to_response(
- request, 'mediagoblin/404.html', {}, status=404)
+ return Response(render_template(request, 'mediagoblin/error.html',
+ {'err_code': status, 'title': title, 'err_msg': err_msg}),
+ status=status)
+
+
+def render_403(request):
+ """Render a standard 403 page"""
+ _ = pass_to_ugettext
+ title = _('Operation not allowed')
+ err_msg = _("Sorry Dave, I can't let you do that!</p><p>You have tried "
+ " to perform a function that you are not allowed to. Have you "
+ "been trying to delete all user accounts again?")
+ return render_error(request, 403, title, err_msg)
+
+def render_404(request):
+ """Render a standard 404 page."""
+ _ = pass_to_ugettext
+ err_msg = _("There doesn't seem to be a page at this address. Sorry!</p>"
+ "<p>If you're sure the address is correct, maybe the page "
+ "you're looking for has been moved or deleted.")
+ return render_error(request, 404, err_msg=err_msg)
+
+
+def render_http_exception(request, exc, description):
+ """Return Response() given a werkzeug.HTTPException
+
+ :param exc: werkzeug.HTTPException or subclass thereof
+ :description: message describing the error."""
+ # If we were passed the HTTPException stock description on
+ # exceptions where we have localized ones, use those:
+ stock_desc = (description == exc.__class__.description)
+
+ if stock_desc and exc.code == 403:
+ return render_403(request)
+ elif stock_desc and exc.code == 404:
+ return render_404(request)
+
+ return render_error(request, title=exc.args[0],
+ err_msg=description,
+ status=exc.code)
def redirect(request, *args, **kwargs):
- """Returns a HTTPFound(), takes a request and then urlgen params"""
+ """Redirects to an URL, using urlgen params or location string
+
+ :param querystring: querystring to be appended to the URL
+ :param location: If the location keyword is given, redirect to the URL
+ """
+ querystring = kwargs.pop('querystring', None)
+
+ # Redirect to URL if given by "location=..."
+ if 'location' in kwargs:
+ location = kwargs.pop('location')
+ else:
+ location = request.urlgen(*args, **kwargs)
+
+ if querystring:
+ location += querystring
+ return werkzeug.utils.redirect(location)
+
- querystring = None
- if kwargs.get('querystring'):
- querystring = kwargs.get('querystring')
- del kwargs['querystring']
+def redirect_obj(request, obj):
+ """Redirect to the page for the given object.
- return exc.HTTPFound(
- location=''.join([
- request.urlgen(*args, **kwargs),
- querystring if querystring else '']))
+ Requires obj to have a .url_for_self method."""
+ return redirect(request, location=obj.url_for_self(request.urlgen))