From 1d833957ed3e01188770c85e3d84e483419bd797 Mon Sep 17 00:00:00 2001
From: oSumAtrIX <johan.melkonyan1@web.de>
Date: Fri, 15 Apr 2022 04:53:34 +0200
Subject: [PATCH] fix: wrong opcode pattern for
 `enable-seekbar-tapping-signature`

---
 .../interaction/EnableSeekbarTappingPatch.kt  | 26 +++++++++----------
 .../app/revanced/patches/SignatureChecker.kt  | 23 ++++++----------
 2 files changed, 20 insertions(+), 29 deletions(-)

diff --git a/src/main/kotlin/app/revanced/patches/interaction/EnableSeekbarTappingPatch.kt b/src/main/kotlin/app/revanced/patches/interaction/EnableSeekbarTappingPatch.kt
index 323436cea..4aabc6ce9 100644
--- a/src/main/kotlin/app/revanced/patches/interaction/EnableSeekbarTappingPatch.kt
+++ b/src/main/kotlin/app/revanced/patches/interaction/EnableSeekbarTappingPatch.kt
@@ -30,7 +30,7 @@ class EnableSeekbarTappingPatch : Patch(
         MethodSignature(
             MethodSignatureMetadata(
                 "enable-seekbar-tapping-parent-signature",
-                MethodMetadata(null, null), // unknown
+                MethodMetadata("Lesa;", "<init>"), // unknown
                 PatternScanMethod.Fuzzy(2), // FIXME: Test this threshold and find the best value.
                 compatiblePackages,
                 "Signature for a parent method, which is needed to find the actual method required to be patched.",
@@ -75,7 +75,7 @@ class EnableSeekbarTappingPatch : Patch(
         MethodSignature(
             MethodSignatureMetadata(
                 "enable-seekbar-tapping-signature",
-                MethodMetadata(null, null), // unknown
+                MethodMetadata("Lesa;", "onTouchEvent"), // unknown
                 PatternScanMethod.Fuzzy(2), // FIXME: Test this threshold and find the best value.
                 compatiblePackages,
                 "Signature for the method required to be patched.",
@@ -85,17 +85,6 @@ class EnableSeekbarTappingPatch : Patch(
             AccessFlags.PUBLIC or AccessFlags.FINAL,
             listOf("L"),
             listOf(
-                Opcode.CMPG_DOUBLE,
-                Opcode.IF_GTZ,
-                Opcode.GOTO,
-                Opcode.INT_TO_FLOAT,
-                Opcode.INT_TO_FLOAT,
-                Opcode.INVOKE_VIRTUAL,
-                Opcode.MOVE_RESULT,
-                Opcode.IF_NEZ,
-                Opcode.RETURN,
-                Opcode.IGET_OBJECT,
-                Opcode.IF_EQZ,
                 Opcode.INVOKE_VIRTUAL,
                 Opcode.MOVE_RESULT_WIDE,
                 Opcode.INT_TO_FLOAT,
@@ -116,6 +105,15 @@ class EnableSeekbarTappingPatch : Patch(
                 Opcode.NEW_INSTANCE,
                 Opcode.INVOKE_DIRECT,
                 Opcode.IPUT_OBJECT,
+                Opcode.NEW_INSTANCE,
+                Opcode.INVOKE_VIRTUAL,
+                Opcode.MOVE_RESULT,
+                Opcode.FLOAT_TO_INT,
+                Opcode.INVOKE_VIRTUAL,
+                Opcode.MOVE_RESULT,
+                Opcode.FLOAT_TO_INT,
+                Opcode.INVOKE_DIRECT,
+                Opcode.IPUT_OBJECT,
                 Opcode.INVOKE_VIRTUAL
             )
         )
@@ -156,7 +154,7 @@ class EnableSeekbarTappingPatch : Patch(
         val oMethod = tapSeekMethods["O"]!!
 
         // get the required register
-        val instruction = implementation.instructions[result.scanData.endIndex + 1]
+        val instruction = implementation.instructions[result.scanData.endIndex - 1]
         if (instruction.opcode != Opcode.INVOKE_VIRTUAL)
             return PatchResultError("Could not find the correct register")
         val register = (instruction as Instruction35c).registerC
diff --git a/src/test/kotlin/app/revanced/patches/SignatureChecker.kt b/src/test/kotlin/app/revanced/patches/SignatureChecker.kt
index e0c0f8c13..4b0ce884c 100644
--- a/src/test/kotlin/app/revanced/patches/SignatureChecker.kt
+++ b/src/test/kotlin/app/revanced/patches/SignatureChecker.kt
@@ -10,7 +10,7 @@ import java.io.File
 internal class SignatureChecker {
     @Test
     fun checkSignatures() {
-        val file = File("stock.apk")
+        val file = File("newest.apk")
         if (!file.exists()) {
             throw IllegalStateException("Missing stock.apk! To run this test, please place stock.apk here: ${file.absolutePath}")
         }
@@ -26,21 +26,14 @@ internal class SignatureChecker {
             val patternScanMethod = signature.metadata.patternScanMethod
             if (patternScanMethod is PatternScanMethod.Fuzzy) {
                 val warnings = patternScanMethod.warnings!!
-                println("Signature ${signature.metadata.name} had ${warnings.size} warnings!")
                 val method = signature.result!!.method
-                val instructions = method.implementation!!.instructions
-                println("class = ${method.definingClass}, method = ${printMethod(method)}")
+
+                println("Signature: ${signature.metadata.name}.\nMethod: ${method.definingClass}->${method.toStr()}\nWarnings: ${warnings.count()}")
                 for (warning in warnings) {
-                    println("-".repeat(10))
-                    for (i in (warning.actualIndex - 5).coerceAtLeast(0) until warning.actualIndex) {
-                        println("$i: ${instructions[i].opcode}")
-                    }
-                    println("${warning.actualIndex}: $warning")
-                    for (i in warning.actualIndex + 1 until (warning.actualIndex + 5).coerceAtMost(instructions.size)) {
-                        println("$i: ${instructions[i].opcode}")
-                    }
+                    println("${warning.instructionIndex} / ${warning.patternIndex}: ${warning.current} (expected: ${warning.expected})")
                 }
-                println("=".repeat(20))
+
+                println("=".repeat(20) + "\n")
             }
         }
         if (unresolved.isNotEmpty()) {
@@ -52,7 +45,7 @@ internal class SignatureChecker {
         }
     }
 
-    private fun printMethod(method: Method): String {
-        return "${method.name}(${method.parameterTypes.joinToString("")})${method.returnType}"
+    private fun Method.toStr(): String {
+        return "${this.name}(${this.parameterTypes.joinToString("")})${this.returnType}"
     }
 }
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