DivestOS/Patches/LineageOS-17.1/android_frameworks_base/383258.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Christophe Pinelli <cpinelli@google.com>
Date: Tue, 16 May 2023 17:40:02 +0000
Subject: [PATCH] Restrict activity launch when caller is running in the
background
Test: test on device + atest-src BackgroundActivityLaunchTest#testBackgroundActivityBlockedInStartNextMatchingActivity
Bug: 230492947
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:d8368be4f8fb7019ea24b4798f029301c704092c)
Merged-In: I7ae88eb62e435b9a77d2a724c5a953fe1f35b838
Change-Id: I7ae88eb62e435b9a77d2a724c5a953fe1f35b838
---
.../server/wm/ActivityTaskManagerService.java | 51 +++++++++++--------
1 file changed, 30 insertions(+), 21 deletions(-)
diff --git a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
index 5bcc5975604a..7384ca7173d3 100644
--- a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
+++ b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
@@ -1194,28 +1194,37 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
final long origId = Binder.clearCallingIdentity();
// TODO(b/64750076): Check if calling pid should really be -1.
- final int res = getActivityStartController()
- .obtainStarter(intent, "startNextMatchingActivity")
- .setCaller(r.app.getThread())
- .setResolvedType(r.resolvedType)
- .setActivityInfo(aInfo)
- .setResultTo(resultTo != null ? resultTo.appToken : null)
- .setResultWho(resultWho)
- .setRequestCode(requestCode)
- .setCallingPid(-1)
- .setCallingUid(r.launchedFromUid)
- .setCallingPackage(r.launchedFromPackage)
- .setRealCallingPid(-1)
- .setRealCallingUid(r.launchedFromUid)
- .setActivityOptions(options)
- .execute();
- Binder.restoreCallingIdentity(origId);
-
- r.finishing = wasFinishing;
- if (res != ActivityManager.START_SUCCESS) {
- return false;
+ try {
+ if (options == null) {
+ options = new SafeActivityOptions(ActivityOptions.makeBasic());
+ }
+ // Fixes b/230492947
+ // Prevents background activity launch through #startNextMatchingActivity
+ // An activity going into the background could still go back to the foreground
+ // if the intent used matches both:
+ // - the activity in the background
+ // - a second activity.
+ options.getOptions(r).setAvoidMoveToFront();
+ final int res = getActivityStartController()
+ .obtainStarter(intent, "startNextMatchingActivity")
+ .setCaller(r.app.getThread())
+ .setResolvedType(r.resolvedType)
+ .setActivityInfo(aInfo)
+ .setResultTo(resultTo != null ? resultTo.appToken : null)
+ .setResultWho(resultWho)
+ .setRequestCode(requestCode)
+ .setCallingPid(-1)
+ .setCallingUid(r.launchedFromUid)
+ .setCallingPackage(r.launchedFromPackage)
+ .setRealCallingPid(-1)
+ .setRealCallingUid(r.launchedFromUid)
+ .setActivityOptions(options)
+ .execute();
+ r.finishing = wasFinishing;
+ return res == ActivityManager.START_SUCCESS;
+ } finally {
+ Binder.restoreCallingIdentity(origId);
}
- return true;
}
}