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refactor(Spotify): Improve protobuf array list mutability patch (#5053)

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Co-authored-by: oSumAtrIX <johan.melkonyan1@web.de>
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Nuckyz 2025-05-28 06:55:25 -03:00 committed by GitHub
parent ef21efa0e8
commit 752a776101
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GPG Key ID: B5690EEEBB952194
2 changed files with 21 additions and 22 deletions
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11
patches/src/main/kotlin/app/revanced/patches/spotify/misc/Fingerprints.kt
View File

@ -65,8 +65,15 @@ internal val protobufListsFingerprint = fingerprint {
custom { method, _ -> method.name == "emptyProtobufList" }
}
internal val protobufListRemoveFingerprint = fingerprint {
custom { method, _ -> method.name == "remove" }
internal val abstractProtobufListEnsureIsMutableFingerprint = fingerprint {
accessFlags(AccessFlags.PUBLIC, AccessFlags.FINAL)
parameters()
returns("V")
custom { method, _ ->
method.indexOfFirstInstruction {
getReference<TypeReference>()?.type == "Ljava/lang/UnsupportedOperationException;"
} >= 0
}
}
internal val homeSectionFingerprint = fingerprint {

32
patches/src/main/kotlin/app/revanced/patches/spotify/misc/UnlockPremiumPatch.kt
View File

@ -3,7 +3,6 @@ package app.revanced.patches.spotify.misc
import app.revanced.patcher.extensions.InstructionExtensions.addInstruction
import app.revanced.patcher.extensions.InstructionExtensions.addInstructions
import app.revanced.patcher.extensions.InstructionExtensions.getInstruction
import app.revanced.patcher.extensions.InstructionExtensions.removeInstruction
import app.revanced.patcher.extensions.InstructionExtensions.removeInstructions
import app.revanced.patcher.extensions.InstructionExtensions.replaceInstruction
import app.revanced.patcher.patch.PatchException
@ -12,9 +11,7 @@ import app.revanced.patcher.util.proxy.mutableTypes.MutableClass
import app.revanced.patcher.util.proxy.mutableTypes.MutableMethod
import app.revanced.patches.spotify.misc.extension.IS_SPOTIFY_LEGACY_APP_TARGET
import app.revanced.patches.spotify.misc.extension.sharedExtensionPatch
import app.revanced.util.getReference
import app.revanced.util.indexOfFirstInstructionOrThrow
import app.revanced.util.indexOfFirstInstructionReversedOrThrow
import app.revanced.util.*
import app.revanced.util.toPublicAccessFlags
import com.android.tools.smali.dexlib2.Opcode
import com.android.tools.smali.dexlib2.iface.instruction.FiveRegisterInstruction
@ -133,29 +130,24 @@ val unlockPremiumPatch = bytecodePatch(
}
val protobufListClassDef = with(protobufListsFingerprint.originalMethod) {
val protobufArrayListClassDef = with(protobufListsFingerprint.originalMethod) {
val emptyProtobufListGetIndex = indexOfFirstInstructionOrThrow(Opcode.SGET_OBJECT)
// Find the protobuffer list class using the definingClass which contains the empty list static value.
// Find the protobuf array list class using the definingClass which contains the empty list static value.
val classType = getInstruction(emptyProtobufListGetIndex).getReference<FieldReference>()!!.definingClass
classes.find { it.type == classType } ?: throw PatchException("Could not find protobuffer list class.")
classes.find { it.type == classType } ?: throw PatchException("Could not find protobuf array list class.")
}
val abstractProtobufListClassDef = classes.find {
it.type == protobufArrayListClassDef.superclass
} ?: throw PatchException("Could not find abstract protobuf list class.")
// Need to allow mutation of the list so the home ads sections can be removed.
// Protobuffer list has an 'isMutable' boolean parameter that sets the mutability.
// Protobuf array list has an 'isMutable' boolean parameter that sets the mutability.
// Forcing that always on breaks unrelated code in strange ways.
// Instead, remove the method call that checks if the list is unmodifiable.
protobufListRemoveFingerprint.match(protobufListClassDef).method.apply {
val invokeThrowUnmodifiableIndex = indexOfFirstInstructionOrThrow {
val reference = getReference<MethodReference>()
opcode == Opcode.INVOKE_VIRTUAL &&
reference?.returnType == "V" && reference.parameterTypes.isEmpty()
}
// Remove the method call that throws an exception if the list is not mutable.
removeInstruction(invokeThrowUnmodifiableIndex)
}
// Instead, return early in the method that throws an error if the list is unmutable.
abstractProtobufListEnsureIsMutableFingerprint.match(abstractProtobufListClassDef)
.method.returnEarly()
// Make featureTypeCase_ accessible so we can check the home section type in the extension.
homeSectionFingerprint.classDef.publicizeField("featureTypeCase_")