Merge changes from topic "delete_sessions_uninstall" into tm-mainline-prod

* changes:
  [automerge] [pm] delete unfinished sessions when installer is uninstalled 2p: 2c8aeb6ae8
  [pm] delete unfinished sessions when installer is uninstalled

services/core/java/com/android/server/pm/DeletePackageHelper.java

@@ -108,7 +108,7 @@ final class DeletePackageHelper {
     }
 
     /**
-     *  This method is an internal method that could be get invoked either
+     *  This method is an internal method that could be invoked either
      *  to delete an installed package or to clean up a failed installation.
      *  After deleting an installed package, a broadcast is sent to notify any
      *  listeners that the package has been removed. For cleaning up a failed
@@ -146,6 +146,8 @@ final class DeletePackageHelper {
         int[] allUsers;
         final int freezeUser;
         final SparseArray<TempUserState> priorUserStates;
+
+        final boolean isInstallerPackage;
         /** enabled state of the uninstalled application */
         synchronized (mPm.mLock) {
             final Computer computer = mPm.snapshotComputer();
@@ -226,6 +228,8 @@ final class DeletePackageHelper {
                 freezeUser = removeUser;
                 priorUserStates = null;
             }
+
+            isInstallerPackage = mPm.mSettings.isInstallerPackage(packageName);
         }
 
         synchronized (mPm.mInstallLock) {
@@ -324,6 +328,12 @@ final class DeletePackageHelper {
             }
         }
 
+        if (res && isInstallerPackage) {
+            final PackageInstallerService packageInstallerService =
+                    mPm.mInjector.getPackageInstallerService();
+            packageInstallerService.onInstallerPackageDeleted(uninstalledPs.getAppId(), removeUser);
+        }
+
         return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
     }
 

services/core/java/com/android/server/pm/PackageInstallerService.java

@@ -861,6 +861,7 @@ public class PackageInstallerService extends IPackageInstaller.Stub implements
         synchronized (mSessions) {
             mSessions.put(sessionId, session);
         }
+        mPm.addInstallerPackageName(session.getInstallSource());
 
         mCallbacks.notifySessionCreated(session.sessionId, session.userId);
 
@@ -1735,4 +1736,37 @@ public class PackageInstallerService extends IPackageInstaller.Stub implements
                 .setPackage(sessionInfo.installerPackageName);
         mContext.sendBroadcastAsUser(sessionUpdatedIntent, UserHandle.of(userId));
     }
+
+    /**
+     * Abandon unfinished sessions if the installer package has been uninstalled.
+     * @param installerAppId the app ID of the installer package that has been uninstalled.
+     * @param userId the user that has the installer package uninstalled.
+     */
+    void onInstallerPackageDeleted(int installerAppId, int userId) {
+        synchronized (mSessions) {
+            for (int i = 0; i < mSessions.size(); i++) {
+                final PackageInstallerSession session = mSessions.valueAt(i);
+                if (!matchesInstaller(session, installerAppId, userId)) {
+                    continue;
+                }
+                // Find parent session and only abandon parent session if installer matches
+                PackageInstallerSession root = !session.hasParentSessionId()
+                        ? session : mSessions.get(session.getParentSessionId());
+                if (root != null && matchesInstaller(root, installerAppId, userId)
+                        && !root.isDestroyed()) {
+                    root.abandon();
+                }
+            }
+        }
+    }
+
+    private boolean matchesInstaller(PackageInstallerSession session, int installerAppId,
+            int userId) {
+        final int installerUid = session.getInstallerUid();
+        if (installerAppId == UserHandle.USER_ALL) {
+            return UserHandle.getAppId(installerUid) == installerAppId;
+        } else {
+            return UserHandle.getUid(userId, installerAppId) == installerUid;
+        }
+    }
 }

services/core/java/com/android/server/pm/PackageManagerService.java

@@ -7168,4 +7168,10 @@ public class PackageManagerService implements PackageSender, TestUtilityService
     void notifyInstantAppPackageInstalled(String packageName, int[] newUsers) {
         mInstantAppRegistry.onPackageInstalled(snapshotComputer(), packageName, newUsers);
     }
+
+    void addInstallerPackageName(InstallSource installSource) {
+        synchronized (mLock) {
+            mSettings.addInstallerPackageNames(installSource);
+        }
+    }
 }

services/core/java/com/android/server/pm/Settings.java

@@ -380,8 +380,8 @@ public final class Settings implements Watchable, Snappable {
     private final SnapshotCache<WatchedArrayMap<String, PackageSetting>> mPackagesSnapshot;
 
     /**
-     * List of packages that were involved in installing other packages, i.e. are listed
+     * List of packages that were involved in installing other packages, i.e. packages that created
-     * in at least one app's InstallSource.
+     * new sessions or are listed in at least one app's InstallSource.
      */
     @Watched
     private final WatchedArraySet<String> mInstallerPackages;
@@ -5923,4 +5923,8 @@ public final class Settings implements Watchable, Snappable {
             }
         }
     }
+
+    boolean isInstallerPackage(@NonNull String packageName) {
+        return mInstallerPackages.contains(packageName);
+    }
 }