From bb521725167c554e43f7eeb28250a128ef79f790 Mon Sep 17 00:00:00 2001
From: Greyson Parrelli <greyson@signal.org>
Date: Wed, 12 Jul 2023 10:11:14 -0400
Subject: [PATCH] Fix validation of NullMessage types.

---
 .../signalservice/api/messages/EnvelopeContentValidator.kt       | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/EnvelopeContentValidator.kt b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/EnvelopeContentValidator.kt
index 0478244ad4..5b571de1b6 100644
--- a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/EnvelopeContentValidator.kt
+++ b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/EnvelopeContentValidator.kt
@@ -39,6 +39,7 @@ object EnvelopeContentValidator {
       content.hasDataMessage() -> validateDataMessage(envelope, content.dataMessage)
       content.hasSyncMessage() -> validateSyncMessage(envelope, content.syncMessage)
       content.hasCallMessage() -> Result.Valid
+      content.hasNullMessage() -> Result.Valid
       content.hasReceiptMessage() -> validateReceiptMessage(content.receiptMessage)
       content.hasTypingMessage() -> validateTypingMessage(envelope, content.typingMessage)
       content.hasDecryptionErrorMessage() -> validateDecryptionErrorMessage(content.decryptionErrorMessage.toByteArray())