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refactor: make patches compatible with breaking changes of the patcher

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oSumAtrIX
2022-04-14 10:17:53 +02:00
parent 582ce70ce2
commit 5119905955
9 changed files with 488 additions and 91 deletions
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83
src/main/kotlin/app/revanced/patches/layout/MinimizedPlaybackPatch.kt
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@ -1,33 +1,80 @@
package app.revanced.patches.layout
import app.revanced.patcher.cache.Cache
import app.revanced.patcher.PatcherData
import app.revanced.patcher.extensions.AccessFlagExtensions.Companion.or
import app.revanced.patcher.extensions.addInstructions
import app.revanced.patcher.patch.Patch
import app.revanced.patcher.patch.PatchMetadata
import app.revanced.patcher.patch.PatchResult
import app.revanced.patcher.patch.PatchResultSuccess
import app.revanced.patcher.patch.*
import app.revanced.patcher.signature.MethodMetadata
import app.revanced.patcher.signature.MethodSignature
import app.revanced.patcher.signature.MethodSignatureMetadata
import app.revanced.patcher.signature.PatternScanMethod
import app.revanced.patcher.smali.asInstructions
import org.jf.dexlib2.AccessFlags
import org.jf.dexlib2.Opcode
private val compatiblePackages = arrayOf("com.google.android.youtube")
class MinimizedPlaybackPatch : Patch(
PatchMetadata(
metadata = PatchMetadata(
"minimized-playback",
"TODO",
"TODO"
"Minimized Playback Patch",
"Enable minimized and background playback.",
compatiblePackages,
"1.0.0"
),
signatures = listOf(
MethodSignature(
methodSignatureMetadata = MethodSignatureMetadata(
name = "minimized-playback-manager",
methodMetadata = MethodMetadata(null, null), // unknown
patternScanMethod = PatternScanMethod.Fuzzy(2), // FIXME: Test this threshold and find the best value.
compatiblePackages = compatiblePackages,
description = "Signature for the method required to be patched.",
version = "0.0.1"
),
returnType = "Z",
accessFlags = AccessFlags.PUBLIC or AccessFlags.STATIC,
methodParameters = listOf("L"),
opcodes = listOf(
Opcode.CONST_4,
Opcode.IF_EQZ,
Opcode.IGET,
Opcode.AND_INT_LIT16,
Opcode.IF_EQZ,
Opcode.IGET_OBJECT,
Opcode.IF_NEZ,
Opcode.SGET_OBJECT,
Opcode.IGET,
Opcode.CONST,
Opcode.IF_NE,
Opcode.IGET_OBJECT,
Opcode.IF_NEZ,
Opcode.SGET_OBJECT,
Opcode.IGET,
Opcode.IF_NE,
Opcode.IGET_OBJECT,
Opcode.CHECK_CAST,
Opcode.GOTO,
Opcode.SGET_OBJECT,
Opcode.GOTO,
Opcode.CONST_4,
Opcode.IF_EQZ,
Opcode.IGET_BOOLEAN,
Opcode.IF_EQ
)
)
)
) {
override fun execute(cache: Cache): PatchResult {
override fun execute(patcherData: PatcherData): PatchResult {
// Instead of removing all instructions like Vanced,
// we return the method at the beginning instead
cache.methodMap["minimized-playback-manager"]
.method
.implementation!!
.addInstructions(
0,
"""
const/4 v0, 0x1
return v0
signatures.first().result!!.method.implementation!!.addInstructions(
0,
"""
const/4 v0, 0x1
return v0
""".trimIndent().asInstructions()
)
)
return PatchResultSuccess()
}
}