358 lines
11 KiB
C++
358 lines
11 KiB
C++
#include "udisks2lister.h"
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#include <QDBusConnection>
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#include "core/logging.h"
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#include "core/utilities.h"
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#include "dbus/udisks2filesystem.h"
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#include "dbus/udisks2block.h"
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#include "dbus/udisks2drive.h"
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#include "dbus/udisks2job.h"
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const QString Udisks2Lister::udisks2service_ = "org.freedesktop.UDisks2";
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Udisks2Lister::Udisks2Lister() {
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}
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Udisks2Lister::~Udisks2Lister() {
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qLog(Debug) << __PRETTY_FUNCTION__;
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}
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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))
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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))
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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))
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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))
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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))
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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("DBus 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("Parition 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))
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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))
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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))
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return;
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OrgFreedesktopUDisks2FilesystemInterface filesystem(
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udisks2service_,
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device_data_[id].dbus_path,
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QDBusConnection::systemBus());
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if (filesystem.isValid())
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{
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auto umountResult = filesystem.Unmount(QVariantMap());
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umountResult.waitForFinished();
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OrgFreedesktopUDisks2DriveInterface drive(
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udisks2service_,
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device_data_[id].dbus_drive_path,
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QDBusConnection::systemBus());
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if (drive.isValid())
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{
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auto ejectResult = drive.Eject(QVariantMap());
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ejectResult.waitForFinished();
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}
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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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void Udisks2Lister::Init() {
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udisks2_interface_.reset(new OrgFreedesktopDBusObjectManagerInterface(
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udisks2service_,
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"/org/freedesktop/UDisks2",
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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:"
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<< reply.error().name() << reply.error().message();
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udisks2_interface_.reset();
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return;
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}
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for (const QDBusObjectPath &path : reply.value().keys()) {
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auto partitionData = ReadPartitionData(path, false);
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if (!partitionData.dbus_path.isEmpty())
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{
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QWriteLocker locker(&device_data_lock_);
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device_data_[partitionData.unique_id()] = partitionData;
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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)),
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SLOT(DBusInterfaceAdded(QDBusObjectPath, InterfacesAndProperties)));
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connect(udisks2_interface_.get(), SIGNAL(InterfacesRemoved(QDBusObjectPath, QStringList)),
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SLOT(DBusInterfaceRemoved(QDBusObjectPath, QStringList)));
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}
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void Udisks2Lister::DBusInterfaceAdded(const QDBusObjectPath &path,
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const InterfacesAndProperties &interfaces) {
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for (auto interface = interfaces.constBegin(); interface != interfaces.constEnd(); ++interface)
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{
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if (interface.key() != "org.freedesktop.UDisks2.Job")
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continue;
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std::shared_ptr<OrgFreedesktopUDisks2JobInterface> job = std::make_shared<OrgFreedesktopUDisks2JobInterface>(
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udisks2service_,
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path.path(),
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QDBusConnection::systemBus());
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if (!job->isValid())
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continue;
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// For some reason access through Job interface returns all properties
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// as invalid for unmount job so we're doing this the hard way
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bool isMountJob = false;
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if (interface.value()["Operation"] == "filesystem-mount")
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isMountJob = true;
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else if (interface.value()["Operation"] == "filesystem-unmount")
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isMountJob = false;
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else
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continue;
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QList<QDBusObjectPath> mountedParititons
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= GetMountedPartitionsFromDBusArgument(interface.value()["Objects"].value<QDBusArgument>());
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if (mountedParititons.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()
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<< " | IsMountJob = " << isMountJob
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<< " | First partition = " << mountedParititons.at(0).path();
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mounting_jobs_[path].dbus_interface = job;
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mounting_jobs_[path].isMount = isMountJob;
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mounting_jobs_[path].mounted_partitions = mountedParititons;
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connect(job.get(), SIGNAL(Completed(bool, const QString&)),
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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))
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RemoveDevice(path);
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}
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bool Udisks2Lister::isPendingJob(const QDBusObjectPath &jobPath) {
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QMutexLocker locker(&jobs_lock_);
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if (!mounting_jobs_.contains(jobPath))
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return false;
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mounting_jobs_.remove(jobPath);
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return true;
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}
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void Udisks2Lister::RemoveDevice(const QDBusObjectPath &devicePath) {
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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 == devicePath.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())
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return;
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qLog(Debug) << "UDisks2 device removed: " << devicePath.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()
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|| !success
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|| !mounting_jobs_.contains(jobPath))
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return;
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qLog(Debug) << "Pending Job Completed | Path = " << job->path()
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<< " | Mount? = " << mounting_jobs_[jobPath].isMount
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<< " | Success = " << success;
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for (const auto &mountedObject : mounting_jobs_[jobPath].mounted_partitions) {
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auto data = ReadPartitionData(mountedObject, false);
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if (data.dbus_path.isEmpty())
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continue;
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if (mounting_jobs_[jobPath].isMount) {
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qLog(Debug) << "UDisks2 mount job finished: Drive = " << data.dbus_drive_path
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<< " | Partition = " << data.dbus_path;
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QWriteLocker locker(&device_data_lock_);
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device_data_[data.unique_id()] = data;
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DeviceAdded(data.unique_id());
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} else {
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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(mountedObject.path())) {
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qLog(Debug) << "UDisks2 umount job finished, found corresponding device: Drive = " << data.dbus_drive_path
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<< " | Partition = " << data.dbus_path;
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data.mount_paths.removeOne(mountedObject.path());
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if (data.mount_paths.empty())
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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()) {
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qLog(Debug) << "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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}
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}
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Udisks2Lister::PartitionData Udisks2Lister::ReadPartitionData(const QDBusObjectPath &path,
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bool beingMounted) {
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PartitionData result;
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OrgFreedesktopUDisks2FilesystemInterface filesystem(
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udisks2service_,
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path.path(),
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QDBusConnection::systemBus());
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OrgFreedesktopUDisks2BlockInterface block(
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udisks2service_,
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path.path(),
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QDBusConnection::systemBus());
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if (filesystem.isValid()
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&& block.isValid()
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&& (beingMounted || !filesystem.mountPoints().empty())) {
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OrgFreedesktopUDisks2DriveInterface drive(
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udisks2service_,
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block.drive().path(),
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QDBusConnection::systemBus());
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if (drive.isValid()
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&& 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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