fix: 窗管崩溃后无法登录进去

窗管崩溃没有走systemd的注销流程，systemd的session信息错误，导致Accounts服务的已登录用户信息错误，走checkAccount方法的时候任务当前用户已登录直接跳过了。
临时解决方案：用DisplayManager的session信息过滤一下

Log:
Bug: https://pms.uniontech.com/bug-view-283393.html
Influence: kwin崩溃的场景
Change-Id: Ie573c4f1ad336ffc2be33f421efdc89ea84f6723
(cherry picked from commit b7539ff991d7f1c46f07a653e8340201dc665a5c)
(cherry picked from commit 4f92bbd42aebd9020b018b9722c94a656be6eeba)

Author: waterlovemelon

src/session-widgets/sessionbasemodel.cpp

@@ -3,13 +3,13 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "sessionbasemodel.h"
+#include "dconfig_helper.h"
+#include "dbus/dbusdisplaymanager.h"
 
 #include <DSysInfo>
-
 #include <QDebug>
 
 #include "dbusconstant.h"
-#include "dconfig_helper.h"
 
 DCORE_USE_NAMESPACE
 
@@ -462,6 +462,22 @@ void SessionBaseModel::updateUserList(const QStringList &list)
 void SessionBaseModel::updateLoginedUserList(const QString &list)
 {
     qCDebug(DDE_SHELL) << "Logined user list: " << list;
+    // kwin崩溃时systemd中的sessions不会被remove掉，这里通过DisplayManager的session信息过滤一遍（临时解决方案）
+    QStringList loggedUserNameList;
+    DBusDisplayManager displayManager("org.freedesktop.DisplayManager", "/org/freedesktop/DisplayManager", QDBusConnection::systemBus());
+    const auto &sessions = displayManager.sessions();
+    for (const auto &session : sessions) {
+        const QString &sessionPath = session.path();
+        if (sessionPath.isEmpty())
+            continue;
+        QDBusInterface interface("org.freedesktop.DisplayManager", sessionPath, "org.freedesktop.DisplayManager.Session", QDBusConnection::systemBus());
+        if (interface.isValid()) {
+            const QString &userName = interface.property("UserName").toString();
+            if (!userName.isEmpty())
+                loggedUserNameList.append(userName);
+        }
+    }
+    qInfo(DDE_SHELL) << "Logined users from display manager: " << loggedUserNameList;
 
     QList<QString> loginedUsersTmp = m_loginedUsers->keys();
     QJsonParseError jsonParseError;
@@ -486,8 +502,11 @@ void SessionBaseModel::updateLoginedUserList(const QString &list)
                 // 对于通过自定义窗口输入的账户(域账户), 此时账户还没添加进来，导致下面m_users->value(path)为空指针，调用会导致程序奔溃
                 // 因此在登录时，对于新增的账户，调用addUser先将账户添加进来，然后再去更新对应账户的登录状态
                 addUser(path);
-                m_loginedUsers->insert(path, m_users->value(path));
-                m_users->value(path)->updateLoginState(true);
+                auto user = m_users->value(path);
+                if (user->name().isEmpty() || loggedUserNameList.contains(user->name())) {
+                    m_loginedUsers->insert(path, user);
+                    user->updateLoginState(true);
+                }
             } else {
                 loginedUsersTmp.removeAll(path);
             }