Commit Graph

12 Commits

Author SHA1 Message Date
Justus Winter
3d4dc3f021 python: Expose less functions to the Python world.
* lang/python/Makefile.am (EXTRA_DIST, COPY_FILES): Add new file.
* lang/python/gpgme.i: Include new file and add comments.
* lang/python/helpers.c: Include new file.
* lang/python/helpers.h: Move functions we do not need to expose...
* lang/python/private.h: ... here.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-07-28 10:23:32 +02:00
Justus Winter
a324d0cffe python: Make result objects more robust.
Results returned by the GPGME are fragile, i.e. they are only valid
until the next operation is performed in the context.

We cannot arbitrarily constrain the lifetime of Python objects, we
therefore create deep copies of the results.

* lang/python/gpgme.i (gpgme_tofu_info_t): Turn these into a list.
(gpgme_*_result_t): Create deep copies of these objects.
* lang/python/helpers.c (pygpgme_wrap_fragile_result): New function.
* lang/python/helpers.h (pygpgme_wrap_fragile_result): New prototype.
* lang/python/pyme/results.py: New file.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-06-16 14:19:17 +02:00
Justus Winter
f3618bc615 python: Rework callbacks.
Simplify how the lifetime of callback arguments is managed.

* lang/python/gpgme.i (gpgme_edit_cb_t): Check arguments.
(PyObject_p_p, void_p_p): Drop rather dangerous interface.
(pygpgme_unwrap_gpgme_ctx_t): New function.
* lang/python/helpers.c (pygpgme_clear_generic_cb): Drop dangerous
function.
(pyPassphraseCb): Assert contract.
(pygpgme_set_passphrase_cb): Use Python's calling convention so that
we can raise exceptions.  Hand in 'self', get the wrapped object, and
simply store the hook data as attribute of the wrapper object.
(pyProgressCb, pygpgme_set_progress_cb): Likewise.
(pygpgme_set_status_cb): Likewise.
(pygpgme_data_new_from_cbs): Likewise.
* lang/python/helpers.h (pygpgme_clear_generic_cb): Drop prototype.
(pygpgme_set_passphrase_cb): Update prototype.
(pygpgme_set_progress_cb): Likewise.
(pygpgme_set_status_cb): Likewise.
(pygpgme_data_new_from_cbs): Likewise.
(pygpgme_unwrap_gpgme_ctx_t): New prottotype.
* lang/python/pyme/core.py (Context, Data): Update callsites.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-06-16 14:19:17 +02:00
Justus Winter
616929b6ed python: Wrap objects implementing the buffer protocol.
* lang/python/Makefile.am: Add the toplevel source directory to CFLAGS
when compiling the bindings so that we can use private header files.
* lang/python/gpgme.i (gpgme_data_t): Rework the object wrapping.  Do
not create a Python wrapper object, merely a gpgme_data_t object, and
keep references to buffer objects, if any.  If necessary, update the
buffer after the function call.
(pygpgme_wrap_gpgme_data_t): New function.
* lang/python/helpers.c (object_to_gpgme_data_t): Rework object
wrapping.  Also wrap objects implementing the buffer protocol.
* lang/python/helpers.h (object_to_gpgme_data_t): Update prototype.
(pygpgme_wrap_gpgme_data_t): New prototype.
* lang/python/tests/t-idiomatic.py: Demonstrate this.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-06-16 14:19:17 +02:00
Justus Winter
8196edf9ca python: Wrap file-like objects on demand.
* lang/python/gpgme.i (gpgme_data_t): Use new function to create
wrapper objects if necessary, and deallocate them after the function
call.
* lang/python/helpers.c (object_to_gpgme_data_t): New function.
* lang/python/helpers.h (object_to_gpgme_data_t): New prototype.
* lang/python/tests/Makefile.am (pytests): Add new test.
* lang/python/tests/t-idiomatic.py: New file.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-06-06 14:16:04 +02:00
Justus Winter
26c3accc95 python: Move helper function.
* lang/python/gpgme.i (object_to_gpgme_t): Move...
* lang/python/helpers.c: ... here.
* lang/python/helpers.h (object_to_gpgme_t): New prototype.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-06-06 14:16:04 +02:00
Justus Winter
2055a63605 python: Drop obsolete VCS keywords.
--
Signed-off-by: Justus Winter <justus@g10code.com>
2016-06-06 14:16:01 +02:00
Justus Winter
2ae847c027 python: Implement data callbacks.
* lang/python/gpgme.i (object_to_gpgme_t): Set exception on error.
* lang/python/helpers.c (pyDataReadCb): New function.
(pyDataWriteCb): Likewise.
(pyDataSeekCb): Likewise.
(pyDataReleaseCb): Likewise.
(pygpgme_data_new_from_cbs): Likewise.
* lang/python/helpers.h (pygpgme_data_new_from_cbs): New prototype.
* lang/python/pyme/core.py (Data.__init__): Fix docstring, fix read
callbacks.
(Data.__del__): Fix read callbacks.
(Data._free_readcb): Drop function.
(Data._free_datacbs): New function.
(Data.new_from_cbs): Fix setting the callbacks.
(Data.write): Raise stashed exceptions.
(Data.read): Likewise.
* lang/python/tests/t-callbacks.py: Test new functionality.
* lang/python/tests/t-data.py: Likewise.

Signed-off-by: Justus Winter <justus@gnupg.org>
2016-05-27 14:04:28 +02:00
Justus Winter
8b57f06e0c python: Support status callbacks.
* lang/python/helpers.c (pyStatusCb): New function.
(pygpgme_set_status_cb): Likewise.
* lang/python/helpers.h (pygpgme_set_status_cb): New prototype.
* lang/python/pyme/core.py (Context.__init__): Initialize
'last_statuscb'.
(Context._free_statuscb): New function.
(Context.set_status_cb): Likewise.
* lang/python/tests/t-callbacks.py: Test status callbacks.

Signed-off-by: Justus Winter <justus@gnupg.org>
2016-05-24 18:00:16 +02:00
Justus Winter
5476ca6813 python: Move edit callback function.
* lang/python/gpgme.i (pyEditCb): Move...
* lang/python/helpers.c: ... here.
* lang/python/helpers.h (pyEditCb): New prototype.

Signed-off-by: Justus Winter <justus@gnupg.org>
2016-05-23 18:09:22 +02:00
Justus Winter
d90857a08c python: Robust exception handling in callbacks.
* lang/python/helpers.c (pygpgme_stash_callback_exception): New
function.
(pygpgme_raise_callback_exception): Likewise.
(pyPassphraseCb): Stash python errors.
* lang/python/helpers.h (pygpgme_raise_callback_exception): New
prototype.
* lang/python/pyme/core.py ({Context,Data}.__init__): Move common
initialization to superclass.
(Context.set_progress_cb): Hand in 'self'.
* lang/python/pyme/util.py (GpgmeWrapper.__init__): New function.
(GpgmeWrapper.__getattr__): Raise stashed exceptions.
* lang/python/tests/Makefile.am (py_tests): Add new test.
* lang/python/tests/t-callbacks.py: New file.

Signed-off-by: Justus Winter <justus@gnupg.org>
2016-05-19 15:58:45 +02:00
Justus Winter
f4ba16b31e python: Rename bindings.
--
Signed-off-by: Justus Winter <justus@gnupg.org>
2016-05-10 13:19:26 +02:00