Skip corrupt attachments during backup restore.
Instead of aborting the entire backup restore. Related to #8355master
parent
e574c81ea2
commit
17b5816d5b
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@ -128,17 +128,25 @@ public class FullBackupImporter extends FullBackupBase {
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private static void processAttachment(@NonNull Context context, @NonNull AttachmentSecret attachmentSecret, @NonNull SQLiteDatabase db, @NonNull Attachment attachment, BackupRecordInputStream inputStream)
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throws IOException
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{
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File partsDirectory = context.getDir(AttachmentDatabase.DIRECTORY, Context.MODE_PRIVATE);
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File dataFile = File.createTempFile("part", ".mms", partsDirectory);
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Pair<byte[], OutputStream> output = ModernEncryptingPartOutputStream.createFor(attachmentSecret, dataFile, false);
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inputStream.readAttachmentTo(output.second, attachment.getLength());
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File partsDirectory = context.getDir(AttachmentDatabase.DIRECTORY, Context.MODE_PRIVATE);
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File dataFile = File.createTempFile("part", ".mms", partsDirectory);
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Pair<byte[], OutputStream> output = ModernEncryptingPartOutputStream.createFor(attachmentSecret, dataFile, false);
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ContentValues contentValues = new ContentValues();
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contentValues.put(AttachmentDatabase.DATA, dataFile.getAbsolutePath());
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contentValues.put(AttachmentDatabase.THUMBNAIL, (String)null);
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contentValues.put(AttachmentDatabase.DATA_RANDOM, output.first);
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try {
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inputStream.readAttachmentTo(output.second, attachment.getLength());
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contentValues.put(AttachmentDatabase.DATA, dataFile.getAbsolutePath());
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contentValues.put(AttachmentDatabase.THUMBNAIL, (String)null);
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contentValues.put(AttachmentDatabase.DATA_RANDOM, output.first);
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} catch (BadMacException e) {
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Log.w(TAG, "Bad MAC for attachment " + attachment.getAttachmentId() + "! Can't restore it.", e);
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dataFile.delete();
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contentValues.put(AttachmentDatabase.DATA, (String) null);
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contentValues.put(AttachmentDatabase.THUMBNAIL, (String) null);
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contentValues.put(AttachmentDatabase.DATA_RANDOM, (String) null);
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}
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db.update(AttachmentDatabase.TABLE_NAME, contentValues,
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AttachmentDatabase.ROW_ID + " = ? AND " + AttachmentDatabase.UNIQUE_ID + " = ?",
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@ -285,13 +293,11 @@ public class FullBackupImporter extends FullBackupBase {
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try {
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Util.readFully(in, theirMac);
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} catch (IOException e) {
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//destination.delete();
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throw new IOException(e);
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}
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if (!MessageDigest.isEqual(ourMac, theirMac)) {
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//destination.delete();
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throw new IOException("Bad MAC");
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throw new BadMacException();
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}
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} catch (InvalidKeyException | InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException e) {
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throw new AssertionError(e);
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@ -328,6 +334,8 @@ public class FullBackupImporter extends FullBackupBase {
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}
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}
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private static class BadMacException extends IOException {}
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public static class DatabaseDowngradeException extends IOException {
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DatabaseDowngradeException(int currentVersion, int backupVersion) {
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super("Tried to import a backup with version " + backupVersion + " into a database with version " + currentVersion);
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