From 00ff1b5ec537edf997192c15e95d1465c99e4c66 Mon Sep 17 00:00:00 2001
From: inotia00 <108592928+inotia00@users.noreply.github.com>
Date: Thu, 6 Mar 2025 12:02:58 +0900
Subject: [PATCH] fix(YouTube - Spoof streaming data): Skip response encryption
 in OnesiePlayerRequest https://github.com/ReVanced/revanced-patches/pull/4521

---
 .../shared/patches/spoof/BlockRequestPatch.java    | 14 ++++++++++++++
 .../shared/spoof/blockrequest/BlockRequestPatch.kt | 14 +++++++++++++-
 .../shared/spoof/blockrequest/Fingerprints.kt      | 10 ++++++++++
 3 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/extensions/shared/src/main/java/app/revanced/extension/shared/patches/spoof/BlockRequestPatch.java b/extensions/shared/src/main/java/app/revanced/extension/shared/patches/spoof/BlockRequestPatch.java
index 7e90cfce9..cd67891ef 100644
--- a/extensions/shared/src/main/java/app/revanced/extension/shared/patches/spoof/BlockRequestPatch.java
+++ b/extensions/shared/src/main/java/app/revanced/extension/shared/patches/spoof/BlockRequestPatch.java
@@ -106,4 +106,18 @@ public class BlockRequestPatch {
 
         return initPlaybackRequestUri;
     }
+
+    /**
+     * Injection point.
+     * Skip response encryption in OnesiePlayerRequest.
+     */
+    public static boolean skipResponseEncryption(boolean original) {
+        Logger.printDebug(() -> "response Encryption: " + original);
+
+        if (BLOCK_REQUEST) {
+            return false;
+        }
+
+        return original;
+    }
 }
diff --git a/patches/src/main/kotlin/app/revanced/patches/shared/spoof/blockrequest/BlockRequestPatch.kt b/patches/src/main/kotlin/app/revanced/patches/shared/spoof/blockrequest/BlockRequestPatch.kt
index dbb60c9af..a2716d3e8 100644
--- a/patches/src/main/kotlin/app/revanced/patches/shared/spoof/blockrequest/BlockRequestPatch.kt
+++ b/patches/src/main/kotlin/app/revanced/patches/shared/spoof/blockrequest/BlockRequestPatch.kt
@@ -4,9 +4,10 @@ import app.revanced.patcher.extensions.InstructionExtensions.addInstructions
 import app.revanced.patcher.extensions.InstructionExtensions.getInstruction
 import app.revanced.patcher.patch.bytecodePatch
 import app.revanced.patches.shared.extension.Constants.SPOOF_PATH
+import app.revanced.util.fingerprint.injectLiteralInstructionBooleanCall
 import app.revanced.util.fingerprint.methodOrThrow
+import app.revanced.util.fingerprint.resolvable
 import com.android.tools.smali.dexlib2.iface.instruction.FiveRegisterInstruction
-import com.android.tools.smali.dexlib2.iface.instruction.OneRegisterInstruction
 
 const val EXTENSION_CLASS_DESCRIPTOR =
     "$SPOOF_PATH/BlockRequestPatch;"
@@ -50,5 +51,16 @@ val blockRequestPatch = bytecodePatch(
         }
 
         // endregion
+
+        // region Skip response encryption in OnesiePlayerRequest
+
+        if (onesieEncryptionFeatureFlagFingerprint.resolvable()) {
+            onesieEncryptionFeatureFlagFingerprint.injectLiteralInstructionBooleanCall(
+                ONESIE_ENCRYPTION_FEATURE_FLAG,
+                "$EXTENSION_CLASS_DESCRIPTOR->skipResponseEncryption(Z)Z"
+            )
+        }
+
+        // endregion
     }
 }
\ No newline at end of file
diff --git a/patches/src/main/kotlin/app/revanced/patches/shared/spoof/blockrequest/Fingerprints.kt b/patches/src/main/kotlin/app/revanced/patches/shared/spoof/blockrequest/Fingerprints.kt
index 2fc03222d..587992c6d 100644
--- a/patches/src/main/kotlin/app/revanced/patches/shared/spoof/blockrequest/Fingerprints.kt
+++ b/patches/src/main/kotlin/app/revanced/patches/shared/spoof/blockrequest/Fingerprints.kt
@@ -41,3 +41,13 @@ internal fun indexOfUriToStringInstruction(method: Method) =
                 getReference<MethodReference>().toString() == "Landroid/net/Uri;->toString()Ljava/lang/String;"
     }
 
+// Feature flag that turns on Platypus programming language code compiled to native C++.
+// This code appears to replace the player config after the streams are loaded.
+// Flag is present in YouTube 19.34, but is missing Platypus stream replacement code until 19.43.
+// Flag and Platypus code is also present in newer versions of YouTube Music.
+internal const val ONESIE_ENCRYPTION_FEATURE_FLAG = 45645570L
+
+internal val onesieEncryptionFeatureFlagFingerprint = legacyFingerprint(
+    name = "onesieEncryptionFeatureFlagFingerprint",
+    literals = listOf(ONESIE_ENCRYPTION_FEATURE_FLAG),
+)