profile_manager: Load user icons, names, and UUIDs from system save

src/core/hle/service/acc/acc.cpp

@@ -2,6 +2,7 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <algorithm>
 #include <array>
 #include "common/common_paths.h"
 #include "common/common_types.h"
@@ -33,9 +34,9 @@ struct UserData {
 };
 static_assert(sizeof(UserData) == 0x80, "UserData structure has incorrect size");
 
-static std::string GetImagePath(const std::string& username) {
+static std::string GetImagePath(UUID uuid) {
-    return FileUtil::GetUserPath(FileUtil::UserPath::ConfigDir) + "users" + DIR_SEP + username +
+    return FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
-           ".jpg";
+           "/system/save/8000000000000010/su/avators/" + uuid.FormatSwitch() + ".jpg";
 }
 
 class IProfile final : public ServiceFramework<IProfile> {
@@ -49,15 +50,6 @@ public:
             {11, &IProfile::LoadImage, "LoadImage"},
         };
         RegisterHandlers(functions);
-
-        ProfileBase profile_base{};
-        if (profile_manager.GetProfileBase(user_id, profile_base)) {
-            image = std::make_unique<FileUtil::IOFile>(
-                GetImagePath(Common::StringFromFixedZeroTerminatedBuffer(
-                    reinterpret_cast<const char*>(profile_base.username.data()),
-                    profile_base.username.size())),
-                "rb");
-        }
     }
 
 private:
@@ -111,13 +103,15 @@ private:
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
 
-        if (image == nullptr) {
+        const FileUtil::IOFile image(GetImagePath(user_id), "rb");
+
+        if (!image.IsOpen()) {
             ctx.WriteBuffer(backup_jpeg);
             rb.Push<u32>(backup_jpeg_size);
         } else {
-            const auto size = std::min<u32>(image->GetSize(), MAX_JPEG_IMAGE_SIZE);
+            const auto size = std::min<u32>(image.GetSize(), MAX_JPEG_IMAGE_SIZE);
             std::vector<u8> buffer(size);
-            image->ReadBytes(buffer.data(), buffer.size());
+            image.ReadBytes(buffer.data(), buffer.size());
 
             ctx.WriteBuffer(buffer.data(), buffer.size());
             rb.Push<u32>(buffer.size());
@@ -130,15 +124,16 @@ private:
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
 
-        if (image == nullptr)
+        const FileUtil::IOFile image(GetImagePath(user_id), "rb");
+
+        if (!image.IsOpen())
             rb.Push<u32>(backup_jpeg_size);
         else
-            rb.Push<u32>(std::min<u32>(image->GetSize(), MAX_JPEG_IMAGE_SIZE));
+            rb.Push<u32>(std::min<u32>(image.GetSize(), MAX_JPEG_IMAGE_SIZE));
     }
 
     const ProfileManager& profile_manager;
     UUID user_id; ///< The user id this profile refers to.
-    std::unique_ptr<FileUtil::IOFile> image = nullptr;
 };
 
 class IManagerForApplication final : public ServiceFramework<IManagerForApplication> {

src/core/hle/service/acc/profile_manager.cpp

@@ -4,10 +4,27 @@
 
 #include <random>
 #include <boost/optional.hpp>
+#include "common/file_util.h"
 #include "core/hle/service/acc/profile_manager.h"
 #include "core/settings.h"
 
 namespace Service::Account {
+
+struct UserRaw {
+    UUID uuid;
+    UUID uuid2;
+    u64 timestamp;
+    ProfileUsername username;
+    INSERT_PADDING_BYTES(0x80);
+};
+static_assert(sizeof(UserRaw) == 0xC8, "UserRaw has incorrect size.");
+
+struct ProfileDataRaw {
+    INSERT_PADDING_BYTES(0x10);
+    std::array<UserRaw, MAX_USERS> users;
+};
+static_assert(sizeof(ProfileDataRaw) == 0x650, "ProfileDataRaw has incorrect size.");
+
 // TODO(ogniK): Get actual error codes
 constexpr ResultCode ERROR_TOO_MANY_USERS(ErrorModule::Account, -1);
 constexpr ResultCode ERROR_USER_ALREADY_EXISTS(ErrorModule::Account, -2);
@@ -23,15 +40,21 @@ const UUID& UUID::Generate() {
 }
 
 ProfileManager::ProfileManager() {
-    for (std::size_t i = 0; i < Settings::values.users.size(); ++i) {
+    ParseUserSaveFile();
-        const auto& val = Settings::values.users[i];
-        ASSERT(CreateNewUser(val.second, val.first).IsSuccess());
-    }
 
-    OpenUser(Settings::values.users[Settings::values.current_user].second);
+    if (user_count == 0)
+        CreateNewUser(UUID{}.Generate(), "yuzu");
+
+    auto current = Settings::values.current_user;
+    if (!GetAllUsers()[current])
+        current = 0;
+
+    OpenUser(GetAllUsers()[current]);
 }
 
-ProfileManager::~ProfileManager() = default;
+ProfileManager::~ProfileManager() {
+    WriteUserSaveFile();
+}
 
 /// After a users creation it needs to be "registered" to the system. AddToProfiles handles the
 /// internal management of the users profiles
@@ -241,4 +264,70 @@ bool ProfileManager::CanSystemRegisterUser() const {
     // emulate qlaunch. Update this to dynamically change.
 }
 
+bool ProfileManager::RemoveUser(UUID uuid) {
+    auto index = GetUserIndex(uuid);
+    if (index == boost::none) {
+        return false;
+    }
+
+    profiles[*index] = ProfileInfo{};
+    std::stable_partition(profiles.begin(), profiles.end(),
+                          [](const ProfileInfo& profile) { return profile.user_uuid; });
+    return true;
+}
+
+bool ProfileManager::SetProfileBase(UUID uuid, const ProfileBase& profile_new) {
+    auto index = GetUserIndex(uuid);
+    if (profile_new.user_uuid == UUID(INVALID_UUID) || index == boost::none) {
+        return false;
+    }
+
+    auto& profile = profiles[*index];
+    profile.user_uuid = profile_new.user_uuid;
+    profile.username = profile_new.username;
+    profile.creation_time = profile_new.timestamp;
+
+    return true;
+}
+
+void ProfileManager::ParseUserSaveFile() {
+    FileUtil::IOFile save(FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
+                              "/system/save/8000000000000010/su/avators/profiles.dat",
+                          "rb");
+
+    ProfileDataRaw data;
+    save.Seek(0, SEEK_SET);
+    if (save.ReadBytes(&data, sizeof(ProfileDataRaw)) != sizeof(ProfileDataRaw))
+        return;
+
+    for (std::size_t i = 0; i < MAX_USERS; ++i) {
+        const auto& user = data.users[i];
+
+        if (user.uuid != UUID(INVALID_UUID))
+            AddUser({user.uuid, user.username, user.timestamp, {}, false});
+    }
+
+    std::stable_partition(profiles.begin(), profiles.end(),
+                          [](const ProfileInfo& profile) { return profile.user_uuid; });
+}
+
+void ProfileManager::WriteUserSaveFile() {
+    ProfileDataRaw raw{};
+
+    for (std::size_t i = 0; i < MAX_USERS; ++i) {
+        raw.users[i].username = profiles[i].username;
+        raw.users[i].uuid2 = profiles[i].user_uuid;
+        raw.users[i].uuid = profiles[i].user_uuid;
+        raw.users[i].timestamp = profiles[i].creation_time;
+    }
+
+    FileUtil::IOFile save(FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
+                              "/system/save/8000000000000010/su/avators/profiles.dat",
+                          "rb");
+
+    save.Resize(sizeof(ProfileDataRaw));
+    save.Seek(0, SEEK_SET);
+    save.WriteBytes(&raw, sizeof(ProfileDataRaw));
+}
+
 }; // namespace Service::Account

src/core/hle/service/acc/profile_manager.h

@@ -45,6 +45,15 @@ struct UUID {
     std::string Format() const {
         return fmt::format("0x{:016X}{:016X}", uuid[1], uuid[0]);
     }
+
+    std::string FormatSwitch() const {
+        std::array<u8, 16> s{};
+        std::memcpy(s.data(), uuid.data(), sizeof(u128));
+        return fmt::format("{:02x}{:02x}{:02x}{:02x}-{:02x}{:02x}-{:02x}{:02x}-{:02x}{:02x}-{:02x}{"
+                           ":02x}{:02x}{:02x}{:02x}{:02x}",
+                           s[0], s[1], s[2], s[3], s[4], s[5], s[6], s[7], s[8], s[9], s[10], s[11],
+                           s[12], s[13], s[14], s[15]);
+    }
 };
 static_assert(sizeof(UUID) == 16, "UUID is an invalid size!");
 
@@ -108,7 +117,13 @@ public:
 
     bool CanSystemRegisterUser() const;
 
+    bool RemoveUser(UUID uuid);
+    bool SetProfileBase(UUID uuid, const ProfileBase& profile);
+
 private:
+    void ParseUserSaveFile();
+    void WriteUserSaveFile();
+
     std::array<ProfileInfo, MAX_USERS> profiles{};
     std::size_t user_count = 0;
     boost::optional<std::size_t> AddToProfiles(const ProfileInfo& profile);

src/core/hle/service/am/am.cpp

@@ -4,11 +4,13 @@
 
 #include <array>
 #include <cinttypes>
+#include <cstring>
 #include <stack>
 #include "core/core.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/event.h"
 #include "core/hle/kernel/process.h"
+#include "core/hle/service/acc/profile_manager.h"
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applet_ae.h"
 #include "core/hle/service/am/applet_oe.h"
@@ -734,8 +736,10 @@ void IApplicationFunctions::PopLaunchParameter(Kernel::HLERequestContext& ctx) {
     std::vector<u8> buffer(POP_LAUNCH_PARAMETER_BUFFER_SIZE);
 
     std::memcpy(buffer.data(), header_data.data(), header_data.size());
-    const auto current_uuid = Settings::values.users[Settings::values.current_user].second.uuid;
+
-    std::memcpy(buffer.data() + header_data.size(), current_uuid.data(), sizeof(u128));
+    Account::ProfileManager profile_manager{};
+    const auto uuid = profile_manager.GetAllUsers()[Settings::values.current_user].uuid;
+    std::memcpy(buffer.data() + header_data.size(), uuid.data(), sizeof(u128));
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
 

src/core/settings.h

@@ -8,7 +8,6 @@
 #include <atomic>
 #include <string>
 #include "common/common_types.h"
-#include "core/hle/service/acc/profile_manager.h"
 
 namespace Settings {
 
@@ -116,7 +115,6 @@ struct Values {
     bool use_docked_mode;
     bool enable_nfc;
     int current_user;
-    std::vector<std::pair<std::string, Service::Account::UUID>> users;
     int language_index;
 
     // Controls

src/yuzu/configuration/config.cpp

@@ -4,6 +4,7 @@
 
 #include <QSettings>
 #include "common/file_util.h"
+#include "core/hle/service/acc/profile_manager.h"
 #include "input_common/main.h"
 #include "yuzu/configuration/config.h"
 #include "yuzu/ui_settings.h"
@@ -124,23 +125,7 @@ void Config::ReadValues() {
     Settings::values.use_docked_mode = qt_config->value("use_docked_mode", false).toBool();
     Settings::values.enable_nfc = qt_config->value("enable_nfc", true).toBool();
 
-    Settings::values.users.clear();
+    Settings::values.current_user = std::clamp(qt_config->value("current_user", 0).toInt(), 0, 7);
-    const auto size = qt_config->beginReadArray("users");
-    for (int i = 0; i < size; ++i) {
-        qt_config->setArrayIndex(i);
-        const Service::Account::UUID uuid(qt_config->value("uuid_low").toULongLong(),
-                                          qt_config->value("uuid_high").toULongLong());
-        Settings::values.users.emplace_back(qt_config->value("username").toString().toStdString(),
-                                            uuid);
-    }
-
-    qt_config->endArray();
-
-    if (Settings::values.users.empty())
-        Settings::values.users.emplace_back("yuzu", Service::Account::UUID{}.Generate());
-
-    Settings::values.current_user =
-        std::clamp(qt_config->value("current_user", 0).toInt(), 0, size);
 
     Settings::values.language_index = qt_config->value("language_index", 1).toInt();
     qt_config->endGroup();
@@ -280,17 +265,6 @@ void Config::SaveValues() {
     qt_config->setValue("enable_nfc", Settings::values.enable_nfc);
     qt_config->setValue("current_user", Settings::values.current_user);
 
-    qt_config->beginWriteArray("users", Settings::values.users.size());
-    for (std::size_t i = 0; i < Settings::values.users.size(); ++i) {
-        qt_config->setArrayIndex(i);
-        const auto& user = Settings::values.users[i];
-        qt_config->setValue("uuid_low", user.second.uuid[0]);
-        qt_config->setValue("uuid_high", user.second.uuid[1]);
-        qt_config->setValue("username", QString::fromStdString(user.first));
-    }
-
-    qt_config->endArray();
-
     qt_config->setValue("language_index", Settings::values.language_index);
     qt_config->endGroup();
 

src/yuzu/configuration/configure_system.cpp

@@ -2,10 +2,15 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <algorithm>
+#include <QFileDialog>
 #include <QGraphicsItem>
-#include <QList>
+#include <QGraphicsScene>
+#include <QInputDialog>
 #include <QMessageBox>
-#include <qinputdialog.h>
+#include <QStandardItemModel>
+#include <QTreeView>
+#include <QVBoxLayout>
 #include "common/common_paths.h"
 #include "common/logging/backend.h"
 #include "core/core.h"
@@ -14,6 +19,11 @@
 #include "yuzu/configuration/configure_system.h"
 #include "yuzu/main.h"
 
+static std::string GetImagePath(Service::Account::UUID uuid) {
+    return FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
+           "/system/save/8000000000000010/su/avators/" + uuid.FormatSwitch() + ".jpg";
+}
+
 static const std::array<int, 12> days_in_month = {{
     31,
     29,
@@ -40,7 +50,9 @@ static constexpr std::array<u8, 107> backup_jpeg{
     0x01, 0x01, 0x00, 0x00, 0x3f, 0x00, 0xd2, 0xcf, 0x20, 0xff, 0xd9,
 };
 
-ConfigureSystem::ConfigureSystem(QWidget* parent) : QWidget(parent), ui(new Ui::ConfigureSystem) {
+ConfigureSystem::ConfigureSystem(QWidget* parent)
+    : QWidget(parent), ui(new Ui::ConfigureSystem),
+      profile_manager(std::make_unique<Service::Account::ProfileManager>()) {
     ui->setupUi(this);
     connect(ui->combo_birthmonth,
             static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
@@ -82,6 +94,7 @@ ConfigureSystem::ConfigureSystem(QWidget* parent) : QWidget(parent), ui(new Ui::
     connect(ui->pm_add, &QPushButton::pressed, this, &ConfigureSystem::AddUser);
     connect(ui->pm_rename, &QPushButton::pressed, this, &ConfigureSystem::RenameUser);
     connect(ui->pm_remove, &QPushButton::pressed, this, &ConfigureSystem::DeleteUser);
+    connect(ui->pm_set_image, &QPushButton::pressed, this, &ConfigureSystem::SetUserImage);
 
     scene = new QGraphicsScene;
     ui->current_user_icon->setScene(scene);
@@ -99,49 +112,69 @@ void ConfigureSystem::setConfiguration() {
     item_model->removeRows(0, item_model->rowCount());
     list_items.clear();
 
-    std::transform(Settings::values.users.begin(), Settings::values.users.end(),
+    ui->pm_add->setEnabled(profile_manager->GetUserCount() < 8);
-                   std::back_inserter(list_items),
-                   [](const std::pair<std::string, Service::Account::UUID>& user) {
-                       const auto icon_url = QString::fromStdString(
-                           FileUtil::GetUserPath(FileUtil::UserPath::ConfigDir) + "users" +
-                           DIR_SEP + user.first + ".jpg");
-                       QPixmap icon{icon_url};
-
-                       if (!icon) {
-                           icon.fill(QColor::fromRgb(0, 0, 0));
-                           icon.loadFromData(backup_jpeg.data(), backup_jpeg.size());
-                       }
-
-                       return QList{new QStandardItem{
-                           icon.scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation),
-                           QString::fromStdString(user.first + "\n" + user.second.Format())}};
-                   });
-
-    for (const auto& item : list_items)
-        item_model->appendRow(item);
 
+    PopulateUserList();
     UpdateCurrentUser();
 }
 
-void ConfigureSystem::UpdateCurrentUser() {
+static QPixmap GetIcon(Service::Account::UUID uuid) {
-    const auto& current_user = Settings::values.users[Settings::values.current_user];
+    const auto icon_url = QString::fromStdString(GetImagePath(uuid));
-    const auto icon_url =
-        QString::fromStdString(FileUtil::GetUserPath(FileUtil::UserPath::ConfigDir) + "users" +
-                               DIR_SEP + current_user.first + ".jpg");
     QPixmap icon{icon_url};
 
     if (!icon) {
-        icon.fill(QColor::fromRgb(0, 0, 0));
+        icon.fill(Qt::black);
         icon.loadFromData(backup_jpeg.data(), backup_jpeg.size());
     }
 
+    return icon;
+}
+
+void ConfigureSystem::PopulateUserList() {
+    const auto& profiles = profile_manager->GetAllUsers();
+    std::transform(
+        profiles.begin(), profiles.end(), std::back_inserter(list_items),
+        [this](const Service::Account::UUID& user) {
+            Service::Account::ProfileBase profile;
+            if (!profile_manager->GetProfileBase(user, profile))
+                return QList<QStandardItem*>{};
+            const auto username = Common::StringFromFixedZeroTerminatedBuffer(
+                reinterpret_cast<const char*>(profile.username.data()), profile.username.size());
+
+            return QList<QStandardItem*>{new QStandardItem{
+                GetIcon(user).scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation),
+                QString::fromStdString(username + '\n' + user.FormatSwitch())}};
+        });
+
+    list_items.erase(
+        std::remove_if(list_items.begin(), list_items.end(),
+                       [](const auto& list) { return list == QList<QStandardItem*>{}; }),
+        list_items.end());
+
+    for (const auto& item : list_items)
+        item_model->appendRow(item);
+}
+
+void ConfigureSystem::UpdateCurrentUser() {
+    const auto& current_user = profile_manager->GetAllUsers()[Settings::values.current_user];
+    const auto username = GetAccountUsername(current_user);
+
     scene->clear();
-    scene->addPixmap(icon.scaled(48, 48, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
+    scene->addPixmap(
-    ui->current_user_username->setText(QString::fromStdString(current_user.first));
+        GetIcon(current_user).scaled(48, 48, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
+    ui->current_user_username->setText(QString::fromStdString(username));
 }
 
 void ConfigureSystem::ReadSystemSettings() {}
 
+std::string ConfigureSystem::GetAccountUsername(Service::Account::UUID uuid) {
+    Service::Account::ProfileBase profile;
+    if (!profile_manager->GetProfileBase(uuid, profile))
+        return "";
+    return Common::StringFromFixedZeroTerminatedBuffer(
+        reinterpret_cast<const char*>(profile.username.data()), profile.username.size());
+}
+
 void ConfigureSystem::applyConfiguration() {
     if (!enabled)
         return;
@@ -192,16 +225,16 @@ void ConfigureSystem::refreshConsoleID() {
 
 void ConfigureSystem::SelectUser(const QModelIndex& index) {
     Settings::values.current_user =
-        std::clamp<std::size_t>(index.row(), 0, Settings::values.users.size() - 1);
+        std::clamp<std::size_t>(index.row(), 0, profile_manager->GetUserCount() - 1);
 
     UpdateCurrentUser();
 
-    if (Settings::values.users.size() >= 2)
+    ui->pm_remove->setEnabled(profile_manager->GetUserCount() >= 2);
-        ui->pm_remove->setEnabled(true);
-    else
     ui->pm_remove->setEnabled(false);
 
     ui->pm_rename->setEnabled(true);
+
+    ui->pm_set_image->setEnabled(true);
 }
 
 void ConfigureSystem::AddUser() {
@@ -212,33 +245,57 @@ void ConfigureSystem::AddUser() {
     const auto username =
         QInputDialog::getText(this, tr("Enter Username"), tr("Enter a username for the new user:"),
                               QLineEdit::Normal, QString(), &ok);
+    if (!ok)
+        return;
 
-    Settings::values.users.emplace_back(username.toStdString(), uuid);
+    profile_manager->CreateNewUser(uuid, username.toStdString());
 
-    setConfiguration();
+    item_model->appendRow(new QStandardItem{
+        GetIcon(uuid).scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation),
+        QString::fromStdString(username.toStdString() + '\n' + uuid.FormatSwitch())});
 }
 
 void ConfigureSystem::RenameUser() {
     const auto user = tree_view->currentIndex().row();
+    ASSERT(user < 8);
+
+    const auto uuid = profile_manager->GetAllUsers()[user];
+    const auto username = GetAccountUsername(uuid);
+
+    Service::Account::ProfileBase profile;
+    if (!profile_manager->GetProfileBase(uuid, profile))
+        return;
 
     bool ok = false;
-    const auto new_username = QInputDialog::getText(
+    const auto new_username =
-        this, tr("Enter Username"), tr("Enter a new username:"), QLineEdit::Normal,
+        QInputDialog::getText(this, tr("Enter Username"), tr("Enter a new username:"),
-        QString::fromStdString(Settings::values.users[user].first), &ok);
+                              QLineEdit::Normal, QString::fromStdString(username), &ok);
 
     if (!ok)
         return;
 
-    Settings::values.users[user].first = new_username.toStdString();
+    const auto username_std = new_username.toStdString();
+    if (username_std.size() > profile.username.size())
+        std::copy_n(username_std.begin(), profile.username.size(), profile.username.begin());
+    else
+        std::copy(username_std.begin(), username_std.end(), profile.username.begin());
 
-    setConfiguration();
+    profile_manager->SetProfileBase(uuid, profile);
+
+    list_items[user][0] = new QStandardItem{
+        GetIcon(uuid).scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation),
+        QString::fromStdString(username_std + '\n' + uuid.FormatSwitch())};
 }
 
 void ConfigureSystem::DeleteUser() {
-    const auto user = Settings::values.users.begin() + tree_view->currentIndex().row();
+    const auto index = tree_view->currentIndex().row();
+    ASSERT(index < 8);
+    const auto uuid = profile_manager->GetAllUsers()[index];
+    const auto username = GetAccountUsername(uuid);
+
     const auto confirm = QMessageBox::question(
         this, tr("Confirm Delete"),
-        tr("You are about to delete user with name %1. Are you sure?").arg(user->first.c_str()));
+        tr("You are about to delete user with name %1. Are you sure?").arg(username.c_str()));
 
     if (confirm == QMessageBox::No)
         return;
@@ -246,10 +303,38 @@ void ConfigureSystem::DeleteUser() {
     if (Settings::values.current_user == tree_view->currentIndex().row())
         Settings::values.current_user = 0;
 
-    Settings::values.users.erase(user);
+    if (!profile_manager->RemoveUser(uuid))
+        return;
 
-    setConfiguration();
+    item_model->removeRows(tree_view->currentIndex().row(), 1);
 
     ui->pm_remove->setEnabled(false);
     ui->pm_rename->setEnabled(false);
 }
+
+void ConfigureSystem::SetUserImage() {
+    const auto index = tree_view->currentIndex().row();
+    ASSERT(index < 8);
+    const auto uuid = profile_manager->GetAllUsers()[index];
+    const auto username = GetAccountUsername(uuid);
+
+    const auto file = QFileDialog::getOpenFileName(this, tr("Select User Image"), QString(),
+                                                   "JPEG Images (*.jpg *.jpeg)");
+
+    if (file.isEmpty())
+        return;
+
+    FileUtil::Delete(GetImagePath(uuid));
+
+    const auto raw_path =
+        FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) + "/system/save/8000000000000010";
+    if (FileUtil::Exists(raw_path) && !FileUtil::IsDirectory(raw_path))
+        FileUtil::Delete(raw_path);
+
+    FileUtil::CreateFullPath(GetImagePath(uuid));
+    FileUtil::Copy(file.toStdString(), GetImagePath(uuid));
+
+    list_items[index][0] = new QStandardItem{
+        GetIcon(uuid).scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation),
+        QString::fromStdString(username + '\n' + uuid.FormatSwitch())};
+}

src/yuzu/configuration/configure_system.h

@@ -5,12 +5,16 @@
 #pragma once
 
 #include <memory>
-#include <QGraphicsScene>
+
 #include <QList>
-#include <QStandardItemModel>
-#include <QTreeView>
-#include <QVBoxLayout>
 #include <QWidget>
+#include "core/hle/service/acc/profile_manager.h"
+
+class QVBoxLayout;
+class QTreeView;
+class QStandardItemModel;
+class QGraphicsScene;
+class QStandardItem;
 
 namespace Ui {
 class ConfigureSystem;
@@ -26,6 +30,7 @@ public:
     void applyConfiguration();
     void setConfiguration();
 
+    void PopulateUserList();
     void UpdateCurrentUser();
 
 public slots:
@@ -36,9 +41,11 @@ public slots:
     void AddUser();
     void RenameUser();
     void DeleteUser();
+    void SetUserImage();
 
 private:
     void ReadSystemSettings();
+    std::string GetAccountUsername(Service::Account::UUID uuid);
 
     QVBoxLayout* layout;
     QTreeView* tree_view;
@@ -50,8 +57,9 @@ private:
     std::unique_ptr<Ui::ConfigureSystem> ui;
     bool enabled;
 
-    std::u16string username;
     int birthmonth, birthday;
     int language_index;
     int sound_index;
+
+    std::unique_ptr<Service::Account::ProfileManager> profile_manager;
 };

src/yuzu/configuration/configure_system.ui

@@ -333,6 +333,16 @@
         </item>
         <item row="2" column="0">
          <layout class="QHBoxLayout" name="horizontalLayout_3">
+          <item>
+           <widget class="QPushButton" name="pm_set_image">
+            <property name="enabled">
+             <bool>false</bool>
+            </property>
+            <property name="text">
+             <string>Set Image</string>
+            </property>
+           </widget>
+          </item>
           <item>
            <spacer name="horizontalSpacer">
             <property name="orientation">

src/yuzu/main.cpp

@@ -10,6 +10,7 @@
 // VFS includes must be before glad as they will conflict with Windows file api, which uses defines.
 #include "core/file_sys/vfs.h"
 #include "core/file_sys/vfs_real.h"
+#include "core/hle/service/acc/profile_manager.h"
 
 // These are wrappers to avoid the calls to CreateDirectory and CreateFile becuase of the Windows
 // defines.
@@ -758,10 +759,22 @@ void GMainWindow::OnGameListOpenFolder(u64 program_id, GameListOpenTarget target
         const std::string nand_dir = FileUtil::GetUserPath(FileUtil::UserPath::NANDDir);
         ASSERT(program_id != 0);
 
-        QStringList list{};
+        Service::Account::ProfileManager manager{};
-        std::transform(Settings::values.users.begin(), Settings::values.users.end(),
+        const auto user_ids = manager.GetAllUsers();
-                       std::back_inserter(list),
+        QStringList list;
-                       [](const auto& user) { return QString::fromStdString(user.first); });
+        std::transform(
+            user_ids.begin(), user_ids.end(), std::back_inserter(list),
+            [&manager](const auto& user_id) -> QString {
+                if (user_id == Service::Account::UUID{})
+                    return "";
+                Service::Account::ProfileBase base;
+                if (!manager.GetProfileBase(user_id, base))
+                    return "";
+
+                return QString::fromStdString(Common::StringFromFixedZeroTerminatedBuffer(
+                    reinterpret_cast<const char*>(base.username.data()), base.username.size()));
+            });
+        list.removeAll("");
 
         bool ok = false;
         const auto index_string =
@@ -772,12 +785,12 @@ void GMainWindow::OnGameListOpenFolder(u64 program_id, GameListOpenTarget target
             return;
 
         const auto index = list.indexOf(index_string);
-        ASSERT(index != -1);
+        ASSERT(index != -1 && index < 8);
 
-        const auto user_id = Settings::values.users[index].second.uuid;
+        const auto user_id = manager.GetAllUsers()[index];
         path = nand_dir + FileSys::SaveDataFactory::GetFullPath(FileSys::SaveDataSpaceId::NandUser,
                                                                 FileSys::SaveDataType::SaveData,
-                                                                program_id, user_id, 0);
+                                                                program_id, user_id.uuid, 0);
 
         if (!FileUtil::Exists(path)) {
             FileUtil::CreateFullPath(path);

src/yuzu_cmd/config.cpp

@@ -128,24 +128,8 @@ void Config::ReadValues() {
     Settings::values.enable_nfc = sdl2_config->GetBoolean("System", "enable_nfc", true);
     const auto size = sdl2_config->GetInteger("System", "users_size", 0);
 
-    Settings::values.users.clear();
+    Settings::values.current_user =
-    for (std::size_t i = 0; i < size; ++i) {
+        std::clamp<int>(sdl2_config->GetInteger("System", "current_user", 0), 0, 7);
-        const auto uuid_low = std::stoull(
-            sdl2_config->Get("System", fmt::format("users_{}_uuid_low", i), "0"), nullptr, 0);
-        const auto uuid_high = std::stoull(
-            sdl2_config->Get("System", fmt::format("users_{}_uuid_high", i), "0"), nullptr, 0);
-        Settings::values.users.emplace_back(
-            sdl2_config->Get("System", fmt::format("users_{}_username", i), ""),
-            Service::Account::UUID{uuid_low, uuid_high});
-    }
-
-    if (Settings::values.users.empty()) {
-        Settings::values.users.emplace_back("yuzu", Service::Account::UUID{1, 0});
-        LOG_WARNING(
-            Config,
-            "You are using the default UUID of {1, 0}! This might cause issues down the road! "
-            "Please consider randomizing a UUID and adding it to the sdl2_config.ini file.");
-    }
 
     // Miscellaneous
     Settings::values.log_filter = sdl2_config->Get("Miscellaneous", "log_filter", "*:Trace");