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Clementine-audio-player-Mac.../src/devices/udisks2lister.cpp

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