Merge "Ensure only microphone attribution chains are recorded" into sc-v2-dev am: 5a1d0103e4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16562077

Change-Id: I9ee7979039e38a3b63c9d9a835542a7a291797eb

core/java/android/permission/PermissionUsageHelper.java

@@ -199,6 +199,7 @@ public class PermissionUsageHelper implements AppOpsManager.OnOpActiveChangedLis
         // if any link in the chain is finished, remove the chain. Then, find any other chains that
         // contain this op/package/uid/tag combination, and remove them, as well.
         // TODO ntmyren: be smarter about this
+        synchronized(mAttributionChains) {
             mAttributionChains.remove(attributionChainId);
             int numChains = mAttributionChains.size();
             ArrayList<Integer> toRemove = new ArrayList<>();
@@ -216,6 +217,7 @@ public class PermissionUsageHelper implements AppOpsManager.OnOpActiveChangedLis
             }
             mAttributionChains.removeAll(toRemove);
         }
+    }
 
     @Override
     public void onOpStarted(int op, int uid, String packageName, String attributionTag,
@@ -234,9 +236,11 @@ public class PermissionUsageHelper implements AppOpsManager.OnOpActiveChangedLis
             // If this is not a successful start, or it is not a chain, or it is untrusted, return
             return;
         }
+        synchronized(mAttributionChains) {
             addLinkToChainIfNotPresent(AppOpsManager.opToPublicName(op), packageName, uid,
                     attributionTag, attributionFlags, attributionChainId);
         }
+    }
 
     private void addLinkToChainIfNotPresent(String op, String packageName, int uid,
             String attributionTag, int attributionFlags, int attributionChainId) {
@@ -310,7 +314,7 @@ public class PermissionUsageHelper implements AppOpsManager.OnOpActiveChangedLis
             String permGroup = usedPermGroups.get(permGroupNum);
 
             ArrayMap<OpUsage, CharSequence> usagesWithLabels =
-                    getUniqueUsagesWithLabels(rawUsages.get(permGroup));
+                    getUniqueUsagesWithLabels(permGroup, rawUsages.get(permGroup));
 
             if (permGroup.equals(OPSTR_PHONE_CALL_MICROPHONE)) {
                 isPhone = true;
@@ -431,7 +435,8 @@ public class PermissionUsageHelper implements AppOpsManager.OnOpActiveChangedLis
         return ListFormatter.getInstance().format(labels);
     }
 
-    private ArrayMap<OpUsage, CharSequence> getUniqueUsagesWithLabels(List<OpUsage> usages) {
+    private ArrayMap<OpUsage, CharSequence> getUniqueUsagesWithLabels(String permGroup,
+            List<OpUsage> usages) {
         ArrayMap<OpUsage, CharSequence> usagesAndLabels = new ArrayMap<>();
 
         if (usages == null || usages.isEmpty()) {
@@ -466,7 +471,7 @@ public class PermissionUsageHelper implements AppOpsManager.OnOpActiveChangedLis
             // If this usage has a proxy, but is not a proxy, it is the end of a chain.
             // TODO remove once camera converted
             if (!proxies.containsKey(usageAttr) && usage.proxy != null
-                    && !usage.op.equals(OPSTR_RECORD_AUDIO)) {
+                    && !MICROPHONE.equals(permGroup)) {
                 proxyLabels.put(usage, new ArrayList<>());
                 proxyPackages.add(usage.getPackageIdHash());
             }
@@ -538,12 +543,13 @@ public class PermissionUsageHelper implements AppOpsManager.OnOpActiveChangedLis
 
             // TODO ntmyren: remove this proxy logic once camera is converted to AttributionSource
             // For now: don't add mic proxy usages
-            if (!start.op.equals(OPSTR_RECORD_AUDIO)) {
+            if (!MICROPHONE.equals(permGroup)) {
                 usagesAndLabels.put(start,
                         proxyLabelList.isEmpty() ? null : formatLabelList(proxyLabelList));
             }
         }
 
+        synchronized (mAttributionChains) {
             for (int i = 0; i < mAttributionChains.size(); i++) {
                 List<AccessChainLink> usageList = mAttributionChains.valueAt(i);
                 int lastVisible = usageList.size() - 1;
@@ -551,7 +557,8 @@ public class PermissionUsageHelper implements AppOpsManager.OnOpActiveChangedLis
                 // if the list is empty or incomplete, do not show it.
                 if (usageList.isEmpty() || !usageList.get(lastVisible).isEnd()
                         || !usageList.get(0).isStart()
-                    || !usageList.get(lastVisible).usage.op.equals(OPSTR_RECORD_AUDIO)) {
+                        || !permGroup.equals(getGroupForOp(usageList.get(0).usage.op))
+                        || !MICROPHONE.equals(permGroup)) {
                     continue;
                 }
 
@@ -581,6 +588,7 @@ public class PermissionUsageHelper implements AppOpsManager.OnOpActiveChangedLis
                 }
                 usagesAndLabels.put(start.usage, proxyLabel);
             }
+        }
 
         for (int packageHash : mostRecentUsages.keySet()) {
             if (!proxyPackages.contains(packageHash)) {