From 9617bb26eaa51220070ac3a06244b8888634bb07 Mon Sep 17 00:00:00 2001
From: inotia00 <ars258000@gmail.com>
Date: Tue, 14 Mar 2023 20:04:38 +0900
Subject: [PATCH] refactor(protobuf-spoof): stop protobuf spoofing in feed

---
 .../misc/fix/playback/patch/ProtobufSpoofPatch.kt | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/main/kotlin/app/revanced/patches/youtube/misc/fix/playback/patch/ProtobufSpoofPatch.kt b/src/main/kotlin/app/revanced/patches/youtube/misc/fix/playback/patch/ProtobufSpoofPatch.kt
index 08c3e8bc1..2890cd23b 100644
--- a/src/main/kotlin/app/revanced/patches/youtube/misc/fix/playback/patch/ProtobufSpoofPatch.kt
+++ b/src/main/kotlin/app/revanced/patches/youtube/misc/fix/playback/patch/ProtobufSpoofPatch.kt
@@ -6,12 +6,14 @@ import app.revanced.patcher.annotation.Name
 import app.revanced.patcher.annotation.Version
 import app.revanced.patcher.data.BytecodeContext
 import app.revanced.patcher.data.toMethodWalker
-import app.revanced.patcher.extensions.addInstruction
+import app.revanced.patcher.extensions.addInstructions
+import app.revanced.patcher.extensions.instruction
 import app.revanced.patcher.patch.BytecodePatch
 import app.revanced.patcher.patch.PatchResult
 import app.revanced.patcher.patch.PatchResultSuccess
 import app.revanced.patcher.patch.annotations.Patch
 import app.revanced.patcher.util.proxy.mutableTypes.MutableMethod
+import app.revanced.patcher.util.smali.ExternalLabel
 import app.revanced.patches.shared.annotation.YouTubeCompatibility
 import app.revanced.patches.youtube.misc.fix.playback.fingerprints.ProtobufParameterBuilderFingerprint
 
@@ -34,9 +36,16 @@ class ProtobufSpoofPatch : BytecodePatch(
                 val protobufParam = 3
                 val protobufParameter = "CgIQBg%3D%3D" /* Protobuf Parameter of X-Goog-Visitor-Id */
 
-                addInstruction(
+                addInstructions(
                     0,
-                    "const-string p$protobufParam, \"$protobufParameter\""
+                    """
+                        invoke-virtual { p$protobufParam }, Ljava/lang/String;->length()I
+                        move-result v0
+                        const/16 v1, 0x10
+                        if-ge v0, v1, :not_spoof
+                        const-string p$protobufParam, "$protobufParameter"
+                    """,
+                    listOf(ExternalLabel("not_spoof", instruction(0)))
                 )
             }
         } ?: return ProtobufParameterBuilderFingerprint.toErrorResult()