/*
* Any plugin options which are passed in are dispatched here to a Python method and it
* can parse the plugin options. This function is also called after PyLoadModule() has
* loaded the Python module and made sure things are operational.
*/
static bRC PyParsePluginDefinition(bpContext *ctx, void *value)
{
bRC retval = bRC_Error;
struct plugin_ctx *p_ctx = (struct plugin_ctx *)ctx->pContext;
PyObject *pFunc;
/*
* Lookup the parse_plugin_definition() function in the python module.
*/
pFunc = PyDict_GetItemString(p_ctx->pDict, "parse_plugin_definition"); /* Borrowed reference */
if (pFunc && PyCallable_Check(pFunc)) {
PyObject *pPluginDefinition,
*pRetVal;
pPluginDefinition = PyString_FromString((char *)value);
if (!pPluginDefinition) {
goto bail_out;
}
pRetVal = PyObject_CallFunctionObjArgs(pFunc, p_ctx->bpContext, pPluginDefinition, NULL);
Py_DECREF(pPluginDefinition);
if (!pRetVal) {
goto bail_out;
} else {
retval = conv_python_retval(pRetVal);
Py_DECREF(pRetVal);
}
return retval;
} else {
Dmsg(ctx, dbglvl, "Failed to find function named parse_plugin_definition()\n");
return bRC_Error;
}
bail_out:
if (PyErr_Occurred()) {
PyErrorHandler(ctx, M_FATAL);
}
return retval;
}
static bRC PyHandlePluginEvent(bpContext *ctx, bDirEvent *event, void *value)
{
bRC retval = bRC_Error;
plugin_ctx *p_ctx = (plugin_ctx *)ctx->pContext;
PyObject *pFunc;
/*
* Lookup the handle_plugin_event() function in the python module.
*/
pFunc = PyDict_GetItemString(p_ctx->pDict, "handle_plugin_event"); /* Borrowed reference */
if (pFunc && PyCallable_Check(pFunc)) {
PyObject *pEventType,
*pRetVal;
pEventType = PyInt_FromLong(event->eventType);
pRetVal = PyObject_CallFunctionObjArgs(pFunc, p_ctx->bpContext, pEventType, NULL);
Py_DECREF(pEventType);
if (!pRetVal) {
goto bail_out;
} else {
retval = conv_python_retval(pRetVal);
Py_DECREF(pRetVal);
}
} else {
Dmsg(ctx, dbglvl, "Failed to find function named handle_plugin_event()\n");
}
return retval;
bail_out:
if (PyErr_Occurred()) {
PyErrorHandler(ctx, M_FATAL);
}
return retval;
}
/*
* Initial load of the Python module.
*
* Based on the parsed plugin options we set some prerequisits like the
* module path and the module to load. We also load the dictionary used
* for looking up the Python methods.
*/
static bRC PyLoadModule(bpContext *ctx)
{
char *value;
bRC retval = bRC_Error;
struct plugin_ctx *p_ctx = (struct plugin_ctx *)ctx->pContext;
PyObject *sysPath,
*mPath,
*pName,
*pFunc,
*module;
/*
* Extend the Python search path with the defoned plugin_directory.
*/
if (bfuncs->getBareosValue(NULL, bDirVarPluginDir, &value) == bRC_OK) {
sysPath = PySys_GetObject((char *)"path");
mPath = PyString_FromString(value);
PyList_Append(sysPath, mPath);
Py_DECREF(mPath);
}
/*
* Make our callback methods available for Python.
*/
module = Py_InitModule("bareosdir", BareosDIRMethods);
Dmsg(ctx, dbglvl, "Trying to load module with name bareos-dir\n");
pName = PyString_FromString("bareos-dir");
p_ctx->pModule = PyImport_Import(pName);
Py_DECREF(pName);
if (!p_ctx->pModule) {
Dmsg(ctx, dbglvl, "Failed to load module with name bareos-dir\n");
goto bail_out;
}
Dmsg(ctx, dbglvl, "Sucessfully loaded module with name bareos-dir\n");
/*
* Get the Python dictionary for lookups in the Python namespace.
*/
p_ctx->pDict = PyModule_GetDict(p_ctx->pModule); /* Borrowed reference */
/*
* Encode the bpContext so a Python method can pass it in on calling back.
*/
p_ctx->bpContext = PyCreatebpContext(ctx);
/*
* Lookup the load_bareos_plugin() function in the python module.
*/
pFunc = PyDict_GetItemString(p_ctx->pDict, "load_bareos_plugin"); /* Borrowed reference */
if (pFunc && PyCallable_Check(pFunc)) {
PyObject *pRetVal;
pRetVal = PyObject_CallFunctionObjArgs(pFunc, p_ctx->bpContext, NULL);
if (!pRetVal) {
goto bail_out;
} else {
retval = conv_python_retval(pRetVal);
Py_DECREF(pRetVal);
}
} else {
Dmsg(ctx, dbglvl, "Failed to find function named load_bareos_plugins()\n");
goto bail_out;
}
return retval;
bail_out:
if (PyErr_Occurred()) {
PyErrorHandler(ctx, M_FATAL);
}
return retval;
}
/*
* Initial load of the Python module.
*
* Based on the parsed plugin options we set some prerequisits like the
* module path and the module to load. We also load the dictionary used
* for looking up the Python methods.
*/
static bRC PyLoadModule(bpContext *ctx, void *value)
{
bRC retval = bRC_Error;
struct plugin_ctx *p_ctx = (struct plugin_ctx *)ctx->pContext;
PyObject *sysPath,
*mPath,
*pName,
*pFunc;
/*
* See if we already setup the python search path.
*/
if (!p_ctx->python_path_set) {
/*
* Extend the Python search path with the given module_path.
*/
if (p_ctx->module_path) {
sysPath = PySys_GetObject((char *)"path");
mPath = PyString_FromString(p_ctx->module_path);
PyList_Append(sysPath, mPath);
Py_DECREF(mPath);
p_ctx->python_path_set = true;
}
}
/*
* See if we already setup the module structure.
*/
if (!p_ctx->pInstance) {
/*
* Make our callback methods available for Python.
*/
p_ctx->pInstance = Py_InitModule("bareossd", BareosSDMethods);
}
/*
* Try to load the Python module by name.
*/
if (p_ctx->module_name) {
Dmsg(ctx, dbglvl, "Trying to load module with name %s\n", p_ctx->module_name);
pName = PyString_FromString(p_ctx->module_name);
p_ctx->pModule = PyImport_Import(pName);
Py_DECREF(pName);
if (!p_ctx->pModule) {
Dmsg(ctx, dbglvl, "Failed to load module with name %s\n", p_ctx->module_name);
goto bail_out;
}
Dmsg(ctx, dbglvl, "Successfully loaded module with name %s\n", p_ctx->module_name);
/*
* Get the Python dictionary for lookups in the Python namespace.
*/
p_ctx->pDict = PyModule_GetDict(p_ctx->pModule); /* Borrowed reference */
/*
* Encode the bpContext so a Python method can pass it in on calling back.
*/
p_ctx->bpContext = PyCreatebpContext(ctx);
/*
* Lookup the load_bareos_plugin() function in the python module.
*/
pFunc = PyDict_GetItemString(p_ctx->pDict, "load_bareos_plugin"); /* Borrowed reference */
if (pFunc && PyCallable_Check(pFunc)) {
PyObject *pPluginDefinition,
*pRetVal;
pPluginDefinition = PyString_FromString((char *)value);
if (!pPluginDefinition) {
goto bail_out;
}
pRetVal = PyObject_CallFunctionObjArgs(pFunc, p_ctx->bpContext, pPluginDefinition, NULL);
Py_DECREF(pPluginDefinition);
if (!pRetVal) {
goto bail_out;
} else {
retval = conv_python_retval(pRetVal);
Py_DECREF(pRetVal);
}
} else {
Dmsg(ctx, dbglvl, "Failed to find function named load_bareos_plugins()\n");
goto bail_out;
}
/*
* Keep track we successfully loaded.
*/
p_ctx->python_loaded = true;
}
return retval;
bail_out:
if (PyErr_Occurred()) {
PyErrorHandler(ctx, M_FATAL);
}
return retval;
}
