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/**
* SPDX-FileCopyrightText: 2020-2023 Osimis S.A., 2024-2025 Orthanc Team SRL, 2021-2025 Sebastien Jodogne, ICTEAM UCLouvain
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
/**
* Python plugin for Orthanc
* Copyright (C) 2020-2023 Osimis S.A., Belgium
* Copyright (C) 2024-2025 Orthanc Team SRL, Belgium
* Copyright (C) 2021-2025 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
*
* This program is free software: you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Affero General Public License for more details.
*
* 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/>.
**/
#include "ReceivedInstanceCallback.h"
#include "PythonHeaderWrapper.h"
#include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h"
#include "ICallbackRegistration.h"
#include "PythonString.h"
#if ORTHANC_PLUGINS_VERSION_IS_ABOVE(1, 10, 0)
#include <Compatibility.h> // For std::unique_ptr<>
static PyObject* receivedInstanceCallback_ = NULL;
static OrthancPluginReceivedInstanceAction ReceivedInstanceCallback(
OrthancPluginMemoryBuffer64* modifiedDicomBuffer /* out */,
const void* receivedDicomBuffer,
uint64_t receivedDicomBufferSize,
OrthancPluginInstanceOrigin origin)
{
try
{
PythonLock lock;
PythonObject args(lock, PyTuple_New(2));
PyTuple_SetItem(args.GetPyObject(), 0, PyBytes_FromStringAndSize(reinterpret_cast<const char*>(receivedDicomBuffer), receivedDicomBufferSize));
PyTuple_SetItem(args.GetPyObject(), 1, PyLong_FromLong(origin));
PythonObject result(lock, PyObject_CallObject(receivedInstanceCallback_, args.GetPyObject()));
std::string traceback;
if (lock.HasErrorOccurred(traceback))
{
ORTHANC_PLUGINS_LOG_ERROR("Error in the Python received instance callback, traceback:\n" + traceback);
return OrthancPluginReceivedInstanceAction_KeepAsIs;
}
else if (!PyTuple_Check(result.GetPyObject()) || PyTuple_Size(result.GetPyObject()) != 2)
{
ORTHANC_PLUGINS_LOG_ERROR("The Python received instance callback has not returned a tuple as expected");
return OrthancPluginReceivedInstanceAction_KeepAsIs;
}
else
{
PyObject* returnCode = PyTuple_GET_ITEM(result.GetPyObject(), 0);
PyObject* modifiedDicom = PyTuple_GET_ITEM(result.GetPyObject(), 1);
if (!PyLong_Check(returnCode))
{
ORTHANC_PLUGINS_LOG_ERROR("The Python received instance callback has not returned an int as the first element of the return tuple");
return OrthancPluginReceivedInstanceAction_KeepAsIs;
}
OrthancPluginReceivedInstanceAction resultCode = static_cast<OrthancPluginReceivedInstanceAction>(PyLong_AsLong(returnCode));
if (resultCode == OrthancPluginReceivedInstanceAction_KeepAsIs ||
resultCode == OrthancPluginReceivedInstanceAction_Discard)
{
return resultCode;
}
else
{
char* pythonBuffer = NULL;
Py_ssize_t pythonSize = 0;
if (PyBytes_AsStringAndSize(modifiedDicom, &pythonBuffer, &pythonSize) == 1)
{
ORTHANC_PLUGINS_LOG_ERROR("Cannot access the byte buffer returned by the Python received instance callback");
return OrthancPluginReceivedInstanceAction_KeepAsIs;
}
else
{
OrthancPluginCreateMemoryBuffer64(OrthancPlugins::GetGlobalContext(), modifiedDicomBuffer, pythonSize);
if (pythonSize != 0)
{
if (modifiedDicomBuffer->data == NULL)
{
ORTHANC_PLUGINS_LOG_ERROR("Cannot allocate memory in the Python received instance callback");
return OrthancPluginReceivedInstanceAction_KeepAsIs;
}
else
{
memcpy(modifiedDicomBuffer->data, pythonBuffer, pythonSize);
}
}
return OrthancPluginReceivedInstanceAction_Modify;
}
}
}
}
catch (OrthancPlugins::PluginException& e)
{
ORTHANC_PLUGINS_LOG_ERROR("Error in the Python received instance callback: " +
std::string(e.What(OrthancPlugins::GetGlobalContext())));
}
return OrthancPluginReceivedInstanceAction_KeepAsIs;
}
PyObject* RegisterReceivedInstanceCallback(PyObject* module, PyObject* args)
{
// The GIL is locked at this point (no need to create "PythonLock")
class Registration : public ICallbackRegistration
{
public:
virtual void Register() ORTHANC_OVERRIDE
{
OrthancPluginRegisterReceivedInstanceCallback(
OrthancPlugins::GetGlobalContext(), ReceivedInstanceCallback);
}
};
Registration registration;
return ICallbackRegistration::Apply(
registration, args, receivedInstanceCallback_, "Python received instance callback");
}
void FinalizeReceivedInstanceCallback()
{
ICallbackRegistration::Unregister(receivedInstanceCallback_);
}
#else
#warning OrthancPluginRegisterReceivedInstanceCallback() is not supported
PyObject* RegisterReceivedInstanceCallback(PyObject* module, PyObject* args)
{
PyErr_SetString(PyExc_RuntimeError, "The version of your Orthanc SDK doesn't provide OrthancPluginRegisterReceivedInstanceCallback()");
return NULL;
}
void FinalizeReceivedInstanceCallback()
{
}
#endif
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