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/*
* Remmina - The GTK+ Remote Desktop Client
* Copyright (C) 2014-2022 Antenore Gatta, Giovanni Panozzo
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. * If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. * If you
* do not wish to do so, delete this exception statement from your
* version. * If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// I N C L U D E S
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#include <gtk/gtk.h>
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#else
#include <gdk/gdkwayland.h>
#endif
#include "config.h"
#include "remmina/plugin.h"
#include "remmina/remmina_trace_calls.h"
#include "python_wrapper_common.h"
#include "python_wrapper_plugin.h"
#include "python_wrapper_remmina.h"
#include "python_wrapper_protocol_widget.h"
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// D E C L A R A T I O N S
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* An null terminated array of commands that are executed after the initialization of the Python engine. Every entry
* represents a line of Python code.
*/
static const char
* python_init_commands[] = { "import sys", "sys.path.append('" REMMINA_RUNTIME_PLUGINDIR "')", NULL // Sentinel
};
static const gchar* python_wrapper_supported_extensions[] = {"py", NULL};
static RemminaLanguageWrapperPlugin remmina_python_wrapper =
{
REMMINA_PLUGIN_TYPE_LANGUAGE_WRAPPER, // Type
"Python Wrapper", // Name
"Enables Python plugins for Remmina", // Description
GETTEXT_PACKAGE, // Translation domain
"Python Wrapper for Remmina v0.1", // Version number
python_wrapper_supported_extensions, // Supported extentions
python_wrapper_init, // Plugin initialization
python_wrapper_load, // Plugin load Python file
};
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// U T I L S
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* @brief Extracts the filename without extension from a path.
*
* @param in The string to extract the filename from
* @param out The resulting filename without extension (must point to allocated memory).
*
* @return The length of the filename extracted.
*/
static int basename_no_ext(const char* in, char** out)
{
TRACE_CALL(__func__);
assert(in);
assert(out);
const char* base = strrchr(in, '/');
if (base)
{
base++;
} else {
return 0;
}
const char* base_end = strrchr(base, '.');
if (!base_end)
{
base_end = base + strlen(base);
}
const int length = base_end - base;
const int memsize = sizeof(char*) * ((length) + 1);
*out = (char*)python_wrapper_malloc(memsize);
memset(*out, 0, memsize);
strncpy(*out, base, length);
(*out)[length] = '\0';
return length;
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// A P I
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
gboolean python_wrapper_init(RemminaLanguageWrapperPlugin* plugin)
{
TRACE_CALL(__func__);
assert(plugin);
return TRUE;
}
gboolean python_wrapper_load(RemminaLanguageWrapperPlugin* plugin, const char* name)
{
TRACE_CALL(__func__);
assert(plugin);
assert(name);
char* filename = NULL;
if (basename_no_ext(name, &filename) == 0)
{
g_printerr("[%s:%d]: Can not extract filename from '%s'!\n", __FILE__, __LINE__, name);
return FALSE;
}
PyObject* plugin_name = PyUnicode_DecodeFSDefault(filename);
if (!plugin_name)
{
free(filename);
g_printerr("[%s:%d]: Error converting plugin filename to PyUnicode!\n", __FILE__, __LINE__);
return FALSE;
}
wchar_t* program_name = NULL;
Py_ssize_t len = PyUnicode_AsWideChar(plugin_name, program_name, 0);
if (len <= 0)
{
free(filename);
g_printerr("[%s:%d]: Failed allocating %lu bytes!\n", __FILE__, __LINE__, (sizeof(wchar_t) * len));
return FALSE;
}
program_name = (wchar_t*)python_wrapper_malloc(sizeof(wchar_t) * len);
if (!program_name)
{
free(filename);
g_printerr("[%s:%d]: Failed allocating %lu bytes!\n", __FILE__, __LINE__, (sizeof(wchar_t) * len));
return FALSE;
}
PyUnicode_AsWideChar(plugin_name, program_name, len);
PySys_SetArgv(1, &program_name);
if (PyImport_Import(plugin_name))
{
free(filename);
return TRUE;
}
g_print("[%s:%d]: Failed to load python plugin file: '%s'\n", __FILE__, __LINE__, name);
PyErr_Print();
free(filename);
return FALSE;
}
G_MODULE_EXPORT gboolean remmina_plugin_entry(RemminaPluginService *service)
{
TRACE_CALL(__func__);
python_wrapper_set_service(service);
python_wrapper_module_init();
Py_InitializeEx(0);
for (const char** ptr = python_init_commands; *ptr; ++ptr)
{
PyRun_SimpleString(*ptr);
}
python_wrapper_protocol_widget_init();
service->register_plugin((RemminaPlugin*)&remmina_python_wrapper);
return TRUE;
}
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