Merge changes I8cdadbf9,I11aa7bac into main
* changes:
RecoverySnapshotStorage: silence log spam from file not found
RecoverySnapshotStorage: fold readFromDisk() and writeFromDisk() into callers
diff --git a/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/RecoverySnapshotStorage.java b/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/RecoverySnapshotStorage.java
index c02b103..404c841 100644
--- a/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/RecoverySnapshotStorage.java
+++ b/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/RecoverySnapshotStorage.java
@@ -19,7 +19,6 @@
import android.annotation.Nullable;
import android.os.Environment;
import android.security.keystore.recovery.KeyChainSnapshot;
-import android.util.Log;
import android.util.SparseArray;
import com.android.internal.annotations.GuardedBy;
@@ -29,9 +28,11 @@
import com.android.server.locksettings.recoverablekeystore.serialization
.KeyChainSnapshotParserException;
import com.android.server.locksettings.recoverablekeystore.serialization.KeyChainSnapshotSerializer;
+import com.android.server.utils.Slogf;
import java.io.File;
import java.io.FileInputStream;
+import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.security.cert.CertificateEncodingException;
@@ -81,12 +82,14 @@
public synchronized void put(int uid, KeyChainSnapshot snapshot) {
mSnapshotByUid.put(uid, snapshot);
- try {
- writeToDisk(uid, snapshot);
+ File snapshotFile = getSnapshotFile(uid);
+ try (FileOutputStream fileOutputStream = new FileOutputStream(snapshotFile)) {
+ KeyChainSnapshotSerializer.serialize(snapshot, fileOutputStream);
} catch (IOException | CertificateEncodingException e) {
- Log.e(TAG,
- String.format(Locale.US, "Error persisting snapshot for %d to disk", uid),
- e);
+ // If we fail to write the latest snapshot, we should delete any older snapshot that
+ // happens to be around. Otherwise snapshot syncs might end up going 'back in time'.
+ snapshotFile.delete();
+ Slogf.e(TAG, e, "Error persisting snapshot for %d to disk", uid);
}
}
@@ -100,10 +103,17 @@
return snapshot;
}
- try {
- return readFromDisk(uid);
+ File snapshotFile = getSnapshotFile(uid);
+ try (FileInputStream fileInputStream = new FileInputStream(snapshotFile)) {
+ return KeyChainSnapshotDeserializer.deserialize(fileInputStream);
+ } catch (FileNotFoundException e) {
+ Slogf.i(TAG, "Snapshot for uid %d not found", uid);
+ return null;
} catch (IOException | KeyChainSnapshotParserException e) {
- Log.e(TAG, String.format(Locale.US, "Error reading snapshot for %d from disk", uid), e);
+ // If we fail to read the latest snapshot, we should delete it in case it is in some way
+ // corrupted. We can regenerate snapshots anyway.
+ snapshotFile.delete();
+ Slogf.e(TAG, e, "Error reading snapshot for %d from disk", uid);
return null;
}
}
@@ -116,50 +126,6 @@
getSnapshotFile(uid).delete();
}
- /**
- * Writes the snapshot for recovery agent {@code uid} to disk.
- *
- * @throws IOException if an IO error occurs writing to disk.
- */
- private void writeToDisk(int uid, KeyChainSnapshot snapshot)
- throws IOException, CertificateEncodingException {
- File snapshotFile = getSnapshotFile(uid);
-
- try (
- FileOutputStream fileOutputStream = new FileOutputStream(snapshotFile)
- ) {
- KeyChainSnapshotSerializer.serialize(snapshot, fileOutputStream);
- } catch (IOException | CertificateEncodingException e) {
- // If we fail to write the latest snapshot, we should delete any older snapshot that
- // happens to be around. Otherwise snapshot syncs might end up going 'back in time'.
- snapshotFile.delete();
- throw e;
- }
- }
-
- /**
- * Reads the last snapshot for recovery agent {@code uid} from disk.
- *
- * @return The snapshot, or null if none existed.
- * @throws IOException if an IO error occurs reading from disk.
- */
- @Nullable
- private KeyChainSnapshot readFromDisk(int uid)
- throws IOException, KeyChainSnapshotParserException {
- File snapshotFile = getSnapshotFile(uid);
-
- try (
- FileInputStream fileInputStream = new FileInputStream(snapshotFile)
- ) {
- return KeyChainSnapshotDeserializer.deserialize(fileInputStream);
- } catch (IOException | KeyChainSnapshotParserException e) {
- // If we fail to read the latest snapshot, we should delete it in case it is in some way
- // corrupted. We can regenerate snapshots anyway.
- snapshotFile.delete();
- throw e;
- }
- }
-
private File getSnapshotFile(int uid) {
File folder = getStorageFolder();
String fileName = getSnapshotFileName(uid);