| commit | author | age | ||
| 131132 | 1 | import sys |
| 0c1c39 | 2 | |
| e5561f | 3 | from pyramid.compat import reraise |
| 3b886e | 4 | from pyramid.httpexceptions import HTTPNotFound |
| 131132 | 5 | |
| 0c29cf | 6 | |
| 793621 | 7 | def _error_handler(request, exc): |
| MM | 8 | # NOTE: we do not need to delete exc_info because this function |
| 9 | # should never be in the call stack of the exception | |
| 10 | exc_info = sys.exc_info() | |
| 11 | ||
| 12 | try: | |
| 3b886e | 13 | response = request.invoke_exception_view(exc_info) |
| MM | 14 | except HTTPNotFound: |
| 15 | # re-raise the original exception as no exception views were | |
| 16 | # able to handle the error | |
| 793621 | 17 | reraise(*exc_info) |
| MM | 18 | |
| 19 | return response | |
| 0c29cf | 20 | |
| 793621 | 21 | |
| 131132 | 22 | def excview_tween_factory(handler, registry): |
| CM | 23 | """ A :term:`tween` factory which produces a tween that catches an |
| 24 | exception raised by downstream tweens (or the main Pyramid request | |
| 25 | handler) and, if possible, converts it into a Response using an | |
| e2e51b | 26 | :term:`exception view`. |
| MM | 27 | |
| 28 | .. versionchanged:: 1.9 | |
| 29 | The ``request.response`` will be remain unchanged even if the tween | |
| 30 | handles an exception. Previously it was deleted after handling an | |
| 31 | exception. | |
| 32 | ||
| 33 | Also, ``request.exception`` and ``request.exc_info`` are only set if | |
| 34 | the tween handles an exception and returns a response otherwise they | |
| 35 | are left at their original values. | |
| 36 | ||
| 37 | """ | |
| 131132 | 38 | |
| CM | 39 | def excview_tween(request): |
| 40 | try: | |
| 8d1533 | 41 | response = handler(request) |
| 44ebac | 42 | except Exception as exc: |
| 793621 | 43 | response = _error_handler(request, exc) |
| 8d1533 | 44 | return response |
| 131132 | 45 | |
| CM | 46 | return excview_tween |
| 47 | ||
| 0c29cf | 48 | |
| fd78f1 | 49 | MAIN = 'MAIN' |
| CM | 50 | INGRESS = 'INGRESS' |
| 4f070b | 51 | EXCVIEW = 'pyramid.tweens.excview_tween_factory' |
