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fix(YouTube - Litho Filter): Ignore null buffers (#565)

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LisoUseInAIKyrios 2024-02-07 19:25:46 +04:00 committed by GitHub
parent 48b968f3be
commit f72faa761c
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1 changed files with 12 additions and 8 deletions
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app/src/main/java/app/revanced/integrations/youtube/patches/components/LithoFilterPatch.java
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@ -503,12 +503,18 @@ public final class LithoFilterPatch {
* Injection point. Called off the main thread.
*/
@SuppressWarnings("unused")
public static void setProtoBuffer(@NonNull ByteBuffer protobufBuffer) {
public static void setProtoBuffer(@Nullable ByteBuffer protobufBuffer) {
// Set the buffer to a thread local. The buffer will remain in memory, even after the call to #filter completes.
// This is intentional, as it appears the buffer can be set once and then filtered multiple times.
// The buffer will be cleared from memory after a new buffer is set by the same thread,
// or when the calling thread eventually dies.
bufferThreadLocal.set(protobufBuffer);
if (protobufBuffer == null) {
// It appears the buffer can be cleared out just before the call to #filter()
// Ignore this null value and retain the last buffer that was set.
Logger.printDebug(() -> "Ignoring null protobuffer");
} else {
bufferThreadLocal.set(protobufBuffer);
}
}
/**
@ -523,15 +529,13 @@ public final class LithoFilterPatch {
ByteBuffer protobufBuffer = bufferThreadLocal.get();
final byte[] bufferArray;
// The buffer can be null or empty when using YT 19.x.
// This is likely caused by different threads setting the buffer and calling this method.
// 100% fixing this would require passing the buffer into this method (which may not be so simple).
// For now, still filter with an empty buffer so the non proto buffer filters work correctly.
// Potentially the buffer may have been null or never set up until now.
// Use an empty buffer so the litho id/path filters still work correctly.
if (protobufBuffer == null) {
Logger.printDebug(() -> "Proto buffer is null");
Logger.printDebug(() -> "Proto buffer is null, using an empty buffer array");
bufferArray = EMPTY_BYTE_ARRAY;
} else if (!protobufBuffer.hasArray()) {
Logger.printDebug(() -> "Proto buffer does not have an array");
Logger.printDebug(() -> "Proto buffer does not have an array, using an empty buffer array");
bufferArray = EMPTY_BYTE_ARRAY;
} else {
bufferArray = protobufBuffer.array();