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Ensure deserialization of previously stored objects still works

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After package has been renamed from `im.vector.matrix.android` to `org.matrix.android.sdk`
This commit is contained in:
Benoit Marty 2020-08-13 15:40:26 +02:00
parent 11b5512cb8
commit 8f1adf6316
2 changed files with 45 additions and 2 deletions
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3
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/crypto/store/db/Helper.kt
View File

@ -23,7 +23,6 @@ import io.realm.RealmConfiguration
import io.realm.RealmObject
import java.io.ByteArrayInputStream
import java.io.ByteArrayOutputStream
import java.io.ObjectInputStream
import java.io.ObjectOutputStream
import java.util.zip.GZIPInputStream
@ -98,7 +97,7 @@ fun <T> deserializeFromRealm(string: String?): T? {
val bais = ByteArrayInputStream(decodedB64)
val gzis = GZIPInputStream(bais)
val ois = ObjectInputStream(gzis)
val ois = SafeObjectInputStream(gzis)
return ois.use {
it.readObject() as T
}

44
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/crypto/store/db/SafeObjectInputStream.kt Normal file
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@ -0,0 +1,44 @@
/*
* Copyright (c) 2020 New Vector Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.matrix.android.sdk.internal.crypto.store.db
import java.io.IOException
import java.io.InputStream
import java.io.ObjectInputStream
import java.io.ObjectStreamClass
/**
* Package has been renamed from `im.vector.matrix.android` to `org.matrix.android.sdk`
* so ensure deserialization of previously stored objects still works
*
* Ref: https://stackoverflow.com/questions/3884492/how-can-i-change-package-for-a-bunch-of-java-serializable-classes
*/
internal class SafeObjectInputStream(`in`: InputStream) : ObjectInputStream(`in`) {
init {
enableResolveObject(true)
}
@Throws(IOException::class, ClassNotFoundException::class)
override fun readClassDescriptor(): ObjectStreamClass {
val read = super.readClassDescriptor()
if (read.name.startsWith("im.vector.matrix.android.")) {
return ObjectStreamClass.lookup(Class.forName(read.name.replace("im.vector.matrix.android.", "org.matrix.android.sdk.")))
}
return read
}
}