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