File indexing completed on 2024-05-19 04:59:18

 /* ============================================================
 * Falkon - Qt web browser
 * Copyright (C) 2018 David Rosca <nowrep@gmail.com>
 *
 * 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 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * ============================================================ */
 #include "pythonplugin.h"
 
 #include "datapaths.h"
 #include "desktopfile.h"
 
 #include <QDir>
 #include <QCoreApplication>
 
 #include <PyFalkon/pyfalkon_python.h>
 
 extern "C" PyObject *PyInit_PyFalkon();
 
 enum State
 {
     PythonUninitialized,
     PythonInitialized,
     PythonError
 };
 
 State state = PythonUninitialized;
 
 PluginInterface *pluginInterface = nullptr;
 QHash<PyObject*, PluginInterface*> pluginInstances;
 
 static void cleanup()
 {
     if (state > PythonUninitialized) {
         Py_Finalize();
         state = PythonUninitialized;
     }
 }
 
 static void set_path(const QStringList &scriptPaths)
 {
     const QString originalPath = QString::fromLocal8Bit(qgetenv("PYTHONPATH"));
 
     QStringList paths = scriptPaths;
     paths.append(originalPath);
 
     qputenv("PYTHONPATH", paths.join(QL1C(':')).toLocal8Bit());
 }
 
 static State init()
 {
     if (state > PythonUninitialized) {
         return state;
     }
 
     set_path(DataPaths::allPaths(DataPaths::Plugins));
 
     if (PyImport_AppendInittab("Falkon", PyInit_PyFalkon) != 0) {
         PyErr_Print();
         qWarning() << "Failed to initialize Falkon module!";
         return state = PythonError;
     }
 
     Py_Initialize();
     qAddPostRoutine(cleanup);
     return state = PythonInitialized;
 }
 
 void pyfalkon_register_plugin(PluginInterface *plugin)
 {
     pluginInterface = plugin;
 }
 
 void *pyfalkon_load_plugin(const QString &name)
 {
     QString fullPath;
     if (QFileInfo(name).isAbsolute()) {
         fullPath = name;
     } else {
         fullPath = DataPaths::locate(DataPaths::Plugins, name);
         if (fullPath.isEmpty()) {
             qWarning() << "Python plugin" << name << "not found";
             return nullptr;
         }
     }
 
     Plugins::Plugin *plugin = new Plugins::Plugin;
     plugin->type = Plugins::Plugin::PythonPlugin;
     plugin->pluginId = QSL("python:%1").arg(QFileInfo(name).fileName());
     plugin->pluginPath = fullPath;
     plugin->pluginSpec = Plugins::createSpec(DesktopFile(fullPath + QSL("/metadata.desktop")));
     return plugin;
 }
 
 void pyfalkon_init_plugin(Plugins::Plugin *plugin)
 {
     if (init() != PythonInitialized) {
         return;
     }
 
     PyObject *module = static_cast<PyObject*>(plugin->data.value<void*>());
     if (module) {
         plugin->instance = pluginInstances.value(module);
         return;
     }
 
     const QString moduleName = plugin->pluginId.mid(7);
 
     pluginInterface = nullptr;
 
     module = PyImport_ImportModule(qPrintable(moduleName));
     if (!module) {
         PyErr_Print();
         qWarning() << "Failed to import module" << moduleName;
         return;
     }
     if (!pluginInterface) {
         qWarning() << "No plugin registered! Falkon.registerPlugin() must be called from script.";
         return;
     }
 
     pluginInstances[module] = pluginInterface;
     plugin->instance = pluginInterface;
     plugin->data = QVariant::fromValue(static_cast<void*>(module));
 }