384 lines
12 KiB
C++
384 lines
12 KiB
C++
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2016, Valeriy Malov <jazzvoid@gmail.com>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "config.h"
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#include <dbus/objectmanager.h>
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#include <dbus/udisks2block.h>
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#include <dbus/udisks2drive.h>
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#include <dbus/udisks2filesystem.h>
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#include <dbus/udisks2job.h>
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#include <QtGlobal>
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#include <QMutex>
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#include <QList>
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#include <QVariant>
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#include <QString>
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#include <QStringList>
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#include <QUrl>
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#include <QReadLocker>
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#include <QWriteLocker>
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#include <QDBusObjectPath>
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#include <QDBusConnection>
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#include <QDBusError>
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#include <QDBusPendingReply>
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#include <QDBusArgument>
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#include <QJsonArray>
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#include <QJsonObject>
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#include <QtDebug>
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#include "core/logging.h"
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#include "core/utilities.h"
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#include "udisks2lister.h"
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constexpr char Udisks2Lister::udisks2_service_[];
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Udisks2Lister::Udisks2Lister() {}
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Udisks2Lister::~Udisks2Lister() {}
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QStringList Udisks2Lister::DeviceUniqueIDs() {
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QReadLocker locker(&device_data_lock_);
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return device_data_.keys();
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}
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QVariantList Udisks2Lister::DeviceIcons(const QString &id) {
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return QVariantList();
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}
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QString Udisks2Lister::DeviceManufacturer(const QString &id) {
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QReadLocker locker(&device_data_lock_);
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if (!device_data_.contains(id)) return "";
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return device_data_[id].vendor;
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}
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QString Udisks2Lister::DeviceModel(const QString &id) {
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QReadLocker locker(&device_data_lock_);
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if (!device_data_.contains(id)) return "";
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return device_data_[id].model;
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}
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quint64 Udisks2Lister::DeviceCapacity(const QString &id) {
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QReadLocker locker(&device_data_lock_);
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if (!device_data_.contains(id)) return 0;
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return device_data_[id].capacity;
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}
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quint64 Udisks2Lister::DeviceFreeSpace(const QString &id) {
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QReadLocker locker(&device_data_lock_);
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if (!device_data_.contains(id)) return 0;
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return device_data_[id].free_space;
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}
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QVariantMap Udisks2Lister::DeviceHardwareInfo(const QString &id) {
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QReadLocker locker(&device_data_lock_);
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if (!device_data_.contains(id)) return QVariantMap();
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QVariantMap result;
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const auto &data = device_data_[id];
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result[QT_TR_NOOP("D-Bus path")] = data.dbus_path;
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result[QT_TR_NOOP("Serial number")] = data.serial;
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result[QT_TR_NOOP("Mount points")] = data.mount_paths.join(", ");
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result[QT_TR_NOOP("Partition label")] = data.label;
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result[QT_TR_NOOP("UUID")] = data.uuid;
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return result;
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}
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QString Udisks2Lister::MakeFriendlyName(const QString &id) {
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QReadLocker locker(&device_data_lock_);
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if (!device_data_.contains(id)) return "";
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return device_data_[id].friendly_name;
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}
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QList<QUrl> Udisks2Lister::MakeDeviceUrls(const QString &id) {
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QReadLocker locker(&device_data_lock_);
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if (!device_data_.contains(id)) return QList<QUrl>();
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return QList<QUrl>() << QUrl::fromLocalFile(device_data_[id].mount_paths.at(0));
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}
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void Udisks2Lister::UnmountDevice(const QString &id) {
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QReadLocker locker(&device_data_lock_);
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if (!device_data_.contains(id)) return;
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OrgFreedesktopUDisks2FilesystemInterface filesystem(udisks2_service_, device_data_[id].dbus_path, QDBusConnection::systemBus());
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if (filesystem.isValid()) {
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auto unmount_result = filesystem.Unmount(QVariantMap());
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unmount_result.waitForFinished();
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if (unmount_result.isError()) {
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qLog(Warning) << "Failed to unmount " << id << ": " << unmount_result.error();
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return;
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}
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OrgFreedesktopUDisks2DriveInterface drive(udisks2_service_, device_data_[id].dbus_drive_path, QDBusConnection::systemBus());
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if (drive.isValid()) {
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auto eject_result = drive.Eject(QVariantMap());
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eject_result.waitForFinished();
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if (eject_result.isError())
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qLog(Warning) << "Failed to eject " << id << ": " << eject_result.error();
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}
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device_data_.remove(id);
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DeviceRemoved(id);
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}
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}
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void Udisks2Lister::UpdateDeviceFreeSpace(const QString &id) {
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QWriteLocker locker(&device_data_lock_);
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device_data_[id].free_space = Utilities::FileSystemFreeSpace(device_data_[id].mount_paths.at(0));
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emit DeviceChanged(id);
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}
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bool Udisks2Lister::Init() {
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udisks2_interface_.reset(new OrgFreedesktopDBusObjectManagerInterface(udisks2_service_, "/org/freedesktop/UDisks2", QDBusConnection::systemBus()));
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QDBusPendingReply<ManagedObjectList> reply = udisks2_interface_->GetManagedObjects();
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reply.waitForFinished();
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if (!reply.isValid()) {
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qLog(Warning) << "Error enumerating udisks2 devices:" << reply.error().name() << reply.error().message();
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udisks2_interface_.reset();
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return false;
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}
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for (const QDBusObjectPath &path : reply.value().keys()) {
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auto partition_data = ReadPartitionData(path);
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if (!partition_data.dbus_path.isEmpty()) {
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QWriteLocker locker(&device_data_lock_);
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device_data_[partition_data.unique_id()] = partition_data;
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}
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}
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for (const auto &id : device_data_.keys()) {
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emit DeviceAdded(id);
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}
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connect(udisks2_interface_.get(), SIGNAL(InterfacesAdded(QDBusObjectPath, InterfacesAndProperties)), SLOT(DBusInterfaceAdded(QDBusObjectPath, InterfacesAndProperties)));
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connect(udisks2_interface_.get(), SIGNAL(InterfacesRemoved(QDBusObjectPath, QStringList)), SLOT(DBusInterfaceRemoved(QDBusObjectPath, QStringList)));
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return true;
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}
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void Udisks2Lister::DBusInterfaceAdded(const QDBusObjectPath &path, const InterfacesAndProperties &interfaces) {
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for (auto interface = interfaces.constBegin(); interface != interfaces.constEnd(); ++interface) {
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if (interface.key() != "org.freedesktop.UDisks2.Job") continue;
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std::shared_ptr<OrgFreedesktopUDisks2JobInterface> job = std::make_shared<OrgFreedesktopUDisks2JobInterface>(udisks2_service_, path.path(), QDBusConnection::systemBus());
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if (!job->isValid()) continue;
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bool is_mount_job = false;
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if (job->operation() == "filesystem-mount") {
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is_mount_job = true;
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}
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else if (job->operation() == "filesystem-unmount") {
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is_mount_job = false;
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}
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else {
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continue;
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}
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auto mounted_partitions = job->objects();
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if (mounted_partitions.isEmpty()) {
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qLog(Warning) << "Empty Udisks2 mount/umount job " << path.path();
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continue;
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}
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{
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QMutexLocker locker(&jobs_lock_);
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qLog(Debug) << "Adding pending job | DBus Path = " << job->path() << " | IsMountJob = " << is_mount_job << " | First partition = " << mounted_partitions.at(0).path();
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mounting_jobs_[path].dbus_interface = job;
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mounting_jobs_[path].is_mount = is_mount_job;
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mounting_jobs_[path].mounted_partitions = mounted_partitions;
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connect(job.get(), SIGNAL(Completed(bool, const QString&)), SLOT(JobCompleted(bool, const QString&)));
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}
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}
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}
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void Udisks2Lister::DBusInterfaceRemoved(const QDBusObjectPath &path, const QStringList &ifaces) {
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if (!isPendingJob(path)) RemoveDevice(path);
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}
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bool Udisks2Lister::isPendingJob(const QDBusObjectPath &job_path) {
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QMutexLocker locker(&jobs_lock_);
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if (!mounting_jobs_.contains(job_path)) return false;
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mounting_jobs_.remove(job_path);
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return true;
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}
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void Udisks2Lister::RemoveDevice(const QDBusObjectPath &device_path) {
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QWriteLocker locker(&device_data_lock_);
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QString id;
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for (const auto &data : device_data_) {
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if (data.dbus_path == device_path.path()) {
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id = data.unique_id();
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break;
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}
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}
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if (id.isEmpty()) return;
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qLog(Debug) << "UDisks2 device removed: " << device_path.path();
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device_data_.remove(id);
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DeviceRemoved(id);
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}
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QList<QDBusObjectPath> Udisks2Lister::GetMountedPartitionsFromDBusArgument(const QDBusArgument &input) {
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QList<QDBusObjectPath> result;
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input.beginArray();
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while (!input.atEnd()) {
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QDBusObjectPath extractedPath;
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input >> extractedPath;
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result.push_back(extractedPath);
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}
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input.endArray();
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return result;
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}
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void Udisks2Lister::JobCompleted(bool success, const QString &message) {
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auto job = qobject_cast<OrgFreedesktopUDisks2JobInterface*>(sender());
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QDBusObjectPath jobPath(job->path());
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if (!job->isValid() || !success || !mounting_jobs_.contains(jobPath)) return;
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qLog(Debug) << "Pending Job Completed | Path = " << job->path() << " | Mount? = " << mounting_jobs_[jobPath].is_mount << " | Success = " << success;
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for (const auto &mounted_object : mounting_jobs_[jobPath].mounted_partitions) {
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auto partition_data = ReadPartitionData(mounted_object);
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if (partition_data.dbus_path.isEmpty()) continue;
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mounting_jobs_[jobPath].is_mount ? HandleFinishedMountJob(partition_data) : HandleFinishedUnmountJob(partition_data, mounted_object);
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}
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}
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void Udisks2Lister::HandleFinishedMountJob(const Udisks2Lister::PartitionData &partition_data) {
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qLog(Debug) << "UDisks2 mount job finished: Drive = " << partition_data.dbus_drive_path << " | Partition = " << partition_data.dbus_path;
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QWriteLocker locker(&device_data_lock_);
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device_data_[partition_data.unique_id()] = partition_data;
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DeviceAdded(partition_data.unique_id());
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}
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void Udisks2Lister::HandleFinishedUnmountJob(const Udisks2Lister::PartitionData &partition_data, const QDBusObjectPath &mounted_object) {
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QWriteLocker locker(&device_data_lock_);
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QString id;
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for (auto &data : device_data_) {
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if (data.mount_paths.contains(mounted_object.path())) {
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qLog(Debug) << "UDisks2 umount job finished, found corresponding device: Drive = " << data.dbus_drive_path << " | Partition = " << data.dbus_path;
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data.mount_paths.removeOne(mounted_object.path());
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if (data.mount_paths.empty()) id = data.unique_id();
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break;
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}
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}
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if (!id.isEmpty()) {
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qLog(Debug) << "Partition " << partition_data.dbus_path << " has no more mount points, removing it from device list";
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device_data_.remove(id);
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DeviceRemoved(id);
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}
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}
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Udisks2Lister::PartitionData Udisks2Lister::ReadPartitionData(const QDBusObjectPath &path) {
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PartitionData result;
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OrgFreedesktopUDisks2FilesystemInterface filesystem(udisks2_service_, path.path(), QDBusConnection::systemBus());
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OrgFreedesktopUDisks2BlockInterface block(udisks2_service_, path.path(), QDBusConnection::systemBus());
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if (filesystem.isValid() && block.isValid() && !filesystem.mountPoints().empty()) {
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OrgFreedesktopUDisks2DriveInterface drive(udisks2_service_, block.drive().path(), QDBusConnection::systemBus());
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if (drive.isValid() && drive.mediaRemovable()) {
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result.dbus_path = path.path();
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result.dbus_drive_path = block.drive().path();
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result.serial = drive.serial();
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result.vendor = drive.vendor();
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result.model = drive.model();
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result.label = block.idLabel();
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result.uuid = block.idUUID();
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result.capacity = drive.size();
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if (!result.label.isEmpty())
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result.friendly_name = result.label;
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else
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result.friendly_name = result.model + " " + result.uuid;
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for (const auto &path : filesystem.mountPoints())
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result.mount_paths.push_back(path);
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result.free_space = Utilities::FileSystemFreeSpace(result.mount_paths.at(0));
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}
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}
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return result;
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}
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QString Udisks2Lister::PartitionData::unique_id() const {
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return QString("Udisks2/%1/%2/%3/%4/%5")
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.arg(serial, vendor, model)
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.arg(capacity)
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.arg(uuid);
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}
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Udisks2Lister::Udisks2Job::Udisks2Job() : is_mount(true) {}
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Udisks2Lister::PartitionData::PartitionData() : capacity(0), free_space(0) {}
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