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233 lines
8.0 KiB
233 lines
8.0 KiB
/*
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* Copyright (C) 2013 - 2015 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "mountoperation.h"
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#include <glib/gi18n.h> // for _()
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#include <QMessageBox>
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#include <QPushButton>
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#include <QEventLoop>
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#include "mountoperationpassworddialog_p.h"
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#include "mountoperationquestiondialog_p.h"
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#include "ui_mount-operation-password.h"
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namespace Fm {
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MountOperation::MountOperation(bool interactive, QWidget* parent):
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QObject(parent),
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op(g_mount_operation_new()),
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cancellable_(g_cancellable_new()),
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running(false),
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interactive_(interactive),
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eventLoop(nullptr),
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autoDestroy_(true) {
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g_signal_connect(op, "ask-password", G_CALLBACK(onAskPassword), this);
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g_signal_connect(op, "ask-question", G_CALLBACK(onAskQuestion), this);
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// g_signal_connect(op, "reply", G_CALLBACK(onReply), this);
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#if GLIB_CHECK_VERSION(2, 20, 0)
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g_signal_connect(op, "aborted", G_CALLBACK(onAbort), this);
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#endif
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#if GLIB_CHECK_VERSION(2, 22, 0)
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g_signal_connect(op, "show-processes", G_CALLBACK(onShowProcesses), this);
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#endif
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#if GLIB_CHECK_VERSION(2, 34, 0)
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g_signal_connect(op, "show-unmount-progress", G_CALLBACK(onShowUnmountProgress), this);
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#endif
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}
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MountOperation::~MountOperation() {
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qDebug("delete MountOperation");
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if(cancellable_) {
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cancel();
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g_object_unref(cancellable_);
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}
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if(eventLoop) { // if wait() is called to block the main loop, but the event loop is still running
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// NOTE: is this possible?
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eventLoop->exit(1);
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}
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if(op) {
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g_signal_handlers_disconnect_by_func(op, (gpointer)G_CALLBACK(onAskPassword), this);
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g_signal_handlers_disconnect_by_func(op, (gpointer)G_CALLBACK(onAskQuestion), this);
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#if GLIB_CHECK_VERSION(2, 20, 0)
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g_signal_handlers_disconnect_by_func(op, (gpointer)G_CALLBACK(onAbort), this);
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#endif
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#if GLIB_CHECK_VERSION(2, 22, 0)
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g_signal_handlers_disconnect_by_func(op, (gpointer)G_CALLBACK(onShowProcesses), this);
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#endif
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#if GLIB_CHECK_VERSION(2, 34, 0)
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g_signal_handlers_disconnect_by_func(op, (gpointer)G_CALLBACK(onShowUnmountProgress), this);
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#endif
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g_object_unref(op);
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}
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// qDebug("MountOperation deleted");
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}
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void MountOperation::onAbort(GMountOperation* /*_op*/, MountOperation* /*pThis*/) {
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}
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void MountOperation::onAskPassword(GMountOperation* /*_op*/, gchar* message, gchar* default_user, gchar* default_domain, GAskPasswordFlags flags, MountOperation* pThis) {
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qDebug("ask password");
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MountOperationPasswordDialog dlg(pThis, flags);
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dlg.setMessage(QString::fromUtf8(message));
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dlg.setDefaultUser(QString::fromUtf8(default_user));
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dlg.setDefaultDomain(QString::fromUtf8(default_domain));
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dlg.exec();
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}
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void MountOperation::onAskQuestion(GMountOperation* /*_op*/, gchar* message, GStrv choices, MountOperation* pThis) {
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qDebug("ask question");
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MountOperationQuestionDialog dialog(pThis, message, choices);
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dialog.exec();
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}
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/*
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void MountOperation::onReply(GMountOperation* _op, GMountOperationResult result, MountOperation* pThis) {
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qDebug("reply");
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}
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*/
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void MountOperation::onShowProcesses(GMountOperation* /*_op*/, gchar* /*message*/, GArray* /*processes*/, GStrv /*choices*/, MountOperation* /*pThis*/) {
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qDebug("show processes");
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}
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void MountOperation::onShowUnmountProgress(GMountOperation* /*_op*/, gchar* /*message*/, gint64 /*time_left*/, gint64 /*bytes_left*/, MountOperation* /*pThis*/) {
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qDebug("show unmount progress");
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}
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void MountOperation::onEjectMountFinished(GMount* mount, GAsyncResult* res, QPointer< MountOperation >* pThis) {
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if(*pThis) {
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GError* error = nullptr;
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g_mount_eject_with_operation_finish(mount, res, &error);
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(*pThis)->handleFinish(error);
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}
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delete pThis;
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}
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void MountOperation::onEjectVolumeFinished(GVolume* volume, GAsyncResult* res, QPointer< MountOperation >* pThis) {
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if(*pThis) {
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GError* error = nullptr;
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g_volume_eject_with_operation_finish(volume, res, &error);
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(*pThis)->handleFinish(error);
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}
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delete pThis;
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}
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void MountOperation::onMountFileFinished(GFile* file, GAsyncResult* res, QPointer< MountOperation >* pThis) {
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if(*pThis) {
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GError* error = nullptr;
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g_file_mount_enclosing_volume_finish(file, res, &error);
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(*pThis)->handleFinish(error);
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}
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delete pThis;
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}
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void MountOperation::onMountVolumeFinished(GVolume* volume, GAsyncResult* res, QPointer< MountOperation >* pThis) {
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if(*pThis) {
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GError* error = nullptr;
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g_volume_mount_finish(volume, res, &error);
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(*pThis)->handleFinish(error);
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}
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delete pThis;
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}
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void MountOperation::onUnmountMountFinished(GMount* mount, GAsyncResult* res, QPointer< MountOperation >* pThis) {
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if(*pThis) {
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GError* error = nullptr;
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g_mount_unmount_with_operation_finish(mount, res, &error);
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(*pThis)->handleFinish(error);
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}
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delete pThis;
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}
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void MountOperation::handleFinish(GError* error) {
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qDebug("operation finished: %p", static_cast<void *>(error));
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if(error) {
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bool showError = interactive_;
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if(error->domain == G_IO_ERROR) {
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if(error->code == G_IO_ERROR_FAILED) {
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// Generate a more human-readable error message instead of using a gvfs one.
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// The original error message is something like:
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// Error unmounting: umount exited with exit code 1:
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// helper failed with: umount: only root can unmount
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// UUID=18cbf00c-e65f-445a-bccc-11964bdea05d from /media/sda4 */
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// Why they pass this back to us? This is not human-readable for the users at all.
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if(strstr(error->message, "only root can ")) {
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g_free(error->message);
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error->message = g_strdup(_("Only system administrators have the permission to do this."));
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}
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}
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else if(error->code == G_IO_ERROR_FAILED_HANDLED) {
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showError = false;
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}
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}
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if(showError) {
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QMessageBox::critical(nullptr, QObject::tr("Error"), QString::fromUtf8(error->message));
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}
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}
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Q_EMIT finished(error);
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if(eventLoop) { // if wait() is called to block the main loop
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eventLoop->exit(error != nullptr ? 1 : 0);
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eventLoop = nullptr;
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}
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if(error) {
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g_error_free(error);
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}
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// free ourself here!!
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if(autoDestroy_) {
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deleteLater();
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}
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}
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void MountOperation::prepareUnmount(GMount* mount) {
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/* ensure that CWD is not on the mounted filesystem. */
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char* cwd_str = g_get_current_dir();
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GFile* cwd = g_file_new_for_path(cwd_str);
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GFile* root = g_mount_get_root(mount);
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g_free(cwd_str);
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/* FIXME: This cannot cover 100% cases since symlinks are not checked.
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* There may be other cases that cwd is actually under mount root
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* but checking prefix is not enough. We already did our best, though. */
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if(g_file_has_prefix(cwd, root)) {
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g_chdir("/");
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}
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g_object_unref(cwd);
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g_object_unref(root);
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}
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// block the operation used an internal QEventLoop and returns
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// only after the whole operation is finished.
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bool MountOperation::wait() {
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QEventLoop loop;
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eventLoop = &loop;
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int exitCode = loop.exec();
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return exitCode == 0 ? true : false;
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}
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} // namespace Fm
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