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https://github.com/revanced/revanced-patches
synced 2024-12-03 03:42:53 +01:00
perf(general-ads): hook pathBuilder
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oSumAtrIX
parent
02030209b4
commit
b9bad0bb92
@ -1,12 +1,8 @@
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package app.revanced.patches.youtube.ad.general.bytecode.extensions
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import app.revanced.patcher.extensions.addInstructions
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import app.revanced.patcher.extensions.softCompareTo
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import app.revanced.patcher.patch.PatchResultError
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import app.revanced.patcher.util.proxy.mutableTypes.MutableClass
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import app.revanced.patcher.util.proxy.mutableTypes.MutableMethod
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import org.jf.dexlib2.builder.BuilderInstruction
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import org.jf.dexlib2.builder.MutableMethodImplementation
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import org.jf.dexlib2.iface.Method
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import org.jf.dexlib2.iface.instruction.Instruction
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import org.jf.dexlib2.iface.instruction.ReferenceInstruction
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@ -16,21 +12,6 @@ import org.jf.dexlib2.iface.reference.Reference
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import org.jf.dexlib2.immutable.reference.ImmutableMethodReference
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internal object MethodExtensions {
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internal fun MutableMethodImplementation.insertBlocks(
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startIndex: Int,
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vararg blocks: List<BuilderInstruction>,
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) {
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blocks.reversed().forEach {
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this.addInstructions(
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startIndex, it
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)
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}
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}
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internal fun MutableClass.addMethod(mutableMethod: MutableMethod) {
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this.methods.add(mutableMethod)
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}
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internal fun MutableClass.findMutableMethodOf(
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method: Method
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) = this.methods.first {
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@ -6,6 +6,9 @@ import app.revanced.patcher.annotation.Name
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import app.revanced.patcher.annotation.Version
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import app.revanced.patcher.data.impl.BytecodeData
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import app.revanced.patcher.extensions.addInstructions
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import app.revanced.patcher.extensions.instruction
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import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
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import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint.Companion.resolve
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import app.revanced.patcher.patch.PatchResult
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import app.revanced.patcher.patch.PatchResultError
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import app.revanced.patcher.patch.PatchResultSuccess
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@ -14,23 +17,18 @@ import app.revanced.patcher.patch.annotations.Patch
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import app.revanced.patcher.patch.impl.BytecodePatch
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import app.revanced.patcher.util.proxy.mutableTypes.MutableClass
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import app.revanced.patcher.util.proxy.mutableTypes.MutableMethod
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import app.revanced.patcher.util.smali.toInstructions
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import app.revanced.patcher.util.smali.ExternalLabel
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import app.revanced.patches.youtube.ad.general.annotation.GeneralAdsCompatibility
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import app.revanced.patches.youtube.ad.general.bytecode.extensions.MethodExtensions.addMethod
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import app.revanced.patches.youtube.ad.general.bytecode.extensions.MethodExtensions.findMutableMethodOf
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import app.revanced.patches.youtube.ad.general.bytecode.extensions.MethodExtensions.insertBlocks
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import app.revanced.patches.youtube.ad.general.bytecode.extensions.MethodExtensions.toDescriptor
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import app.revanced.patches.youtube.ad.general.bytecode.utils.MethodUtils.createMutableMethod
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import app.revanced.patches.youtube.misc.integrations.patch.IntegrationsPatch
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import app.revanced.patches.youtube.misc.mapping.patch.ResourceMappingResourcePatch
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import app.revanced.patches.youtube.misc.settings.bytecode.patch.SettingsPatch
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import app.revanced.patches.youtube.misc.settings.framework.components.impl.StringResource
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import app.revanced.patches.youtube.misc.settings.framework.components.impl.SwitchPreference
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import org.jf.dexlib2.Opcode
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import org.jf.dexlib2.builder.MutableMethodImplementation
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import org.jf.dexlib2.builder.instruction.*
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import org.jf.dexlib2.iface.MethodImplementation
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import org.jf.dexlib2.iface.instruction.ReferenceInstruction
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import org.jf.dexlib2.builder.instruction.BuilderInstruction10x
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import org.jf.dexlib2.iface.instruction.OneRegisterInstruction
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import org.jf.dexlib2.iface.instruction.formats.Instruction21c
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import org.jf.dexlib2.iface.instruction.formats.Instruction22c
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import org.jf.dexlib2.iface.instruction.formats.Instruction31i
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@ -38,7 +36,6 @@ import org.jf.dexlib2.iface.instruction.formats.Instruction35c
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import org.jf.dexlib2.iface.reference.FieldReference
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import org.jf.dexlib2.iface.reference.MethodReference
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import org.jf.dexlib2.iface.reference.StringReference
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import org.jf.dexlib2.immutable.reference.ImmutableMethodReference
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@Patch
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@DependsOn([ResourceMappingResourcePatch::class, IntegrationsPatch::class, SettingsPatch::class])
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@ -170,13 +167,6 @@ class GeneralBytecodeAdsPatch : BytecodePatch() {
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StringResource("revanced_adremover_paid_content_enabled_summary_on", "Paid content is hidden"),
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StringResource("revanced_adremover_paid_content_enabled_summary_off", "Paid content is shown")
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),
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SwitchPreference(
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"revanced_adremover_suggested",
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StringResource("revanced_adremover_suggested_enabled_title", "Remove personal suggestions"),
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true,
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StringResource("revanced_adremover_suggested_enabled_summary_on", "Personal suggestions are hidden"),
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StringResource("revanced_adremover_suggested_enabled_summary_off", "Personal suggestions are shown")
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),
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SwitchPreference(
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"revanced_adremover_hide_suggestions",
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StringResource("revanced_adremover_hide_suggestions_enabled_title", "Hide suggestions"),
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@ -329,72 +319,54 @@ class GeneralBytecodeAdsPatch : BytecodePatch() {
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}
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stringReferences[2] -> { // Litho ads
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// create proxied method.
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val proxy = data.proxy(classDef)
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val proxiedClass = proxy.resolve()
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// add getIsEmpty method
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proxiedClass.addGetIsEmptyMethod()
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// get required method to patch and get references from
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val lithoMethod = getLithoMethod(proxiedClass)
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?: return PatchResultError("Could not find required litho method to patch.")
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val lithoMethodImplementation = lithoMethod.implementation!!
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?: return PatchResultError("Could not find required Litho method to patch.")
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// create and add getTemplateName method
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val getTemplateMethod =
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proxiedClass.createGetTemplateNameMethod(lithoMethodImplementation)
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proxiedClass.addMethod(getTemplateMethod)
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val lithoInstructions = lithoMethodImplementation.instructions
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val thisType = proxiedClass.type
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val templateNameParameterType = getTemplateMethod.parameterTypes.first()
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// get reference descriptors
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val indexOfReference1 = lithoInstructions.indexOfFirst {
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val instructionWithNeededDescriptor =
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lithoMethod.implementation!!.instructions.indexOfFirst {
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it.opcode == Opcode.INVOKE_STATIC_RANGE
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}
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val descriptor1 =
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lithoInstructions.elementAt(indexOfReference1).toDescriptor<MethodReference>()
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val descriptor2 = lithoInstructions.elementAt(indexOfReference1 + 2)
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// get required descriptors
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val createEmptyComponentDescriptor =
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lithoMethod.instruction(instructionWithNeededDescriptor)
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.toDescriptor<MethodReference>()
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val emptyComponentFieldDescriptor =
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lithoMethod.instruction(instructionWithNeededDescriptor + 2)
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.toDescriptor<FieldReference>()
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// create label
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val lithoRemoveLabel = lithoMethodImplementation.newLabelForIndex(0)
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val pathBuilderAnchorFingerprint = object : MethodFingerprint(
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opcodes = listOf(
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Opcode.CONST_16,
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Opcode.INVOKE_VIRTUAL,
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Opcode.IPUT_OBJECT
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)
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) {}
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// create branch instructions
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val ifEqzFirstInstruction =
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BuilderInstruction21t(Opcode.IF_EQZ, 0, lithoRemoveLabel)
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val ifEqzSecondInstruction =
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BuilderInstruction21t(Opcode.IF_EQZ, 1, lithoRemoveLabel)
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val pathBuilderScanResult = pathBuilderAnchorFingerprint.also {
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it.resolve(data, lithoMethod, classDef)
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}.result!!.scanResult.patternScanResult!!
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// create blocks
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val block1 = """
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invoke-static/range {p3}, $thisType->getTemplateName($templateNameParameterType)Ljava/lang/String;
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move-result-object v0
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""".toInstructions(lithoMethod)
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val block2 = """
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move-object/from16 v1, p3
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iget-object v2, v1, $templateNameParameterType->b:Ljava/nio/ByteBuffer;
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invoke-static {v0, v2}, Lapp/revanced/integrations/patches/GeneralBytecodeAdsPatch;->containsAd(Ljava/lang/String;Ljava/nio/ByteBuffer;)Z
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move-result v1
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""".toInstructions(lithoMethod)
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val block3 = """
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val clobberedRegister =
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(lithoMethod.instruction(pathBuilderScanResult.startIndex) as OneRegisterInstruction).registerA
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val insertIndex = pathBuilderScanResult.endIndex + 1
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lithoMethod.addInstructions(
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insertIndex, // right after setting the component.pathBuilder field,
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"""
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invoke-static {v5}, Lapp/revanced/integrations/patches/GeneralBytecodeAdsPatch;->isAdComponent(Ljava/lang/StringBuilder;)Z
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move-result v$clobberedRegister
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if-eqz v$clobberedRegister, :not_an_ad
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move-object/from16 v2, p1
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invoke-static {v2}, $descriptor1
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invoke-static {v2}, $createEmptyComponentDescriptor
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move-result-object v0
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iget-object v0, v0, $descriptor2
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iget-object v0, v0, $emptyComponentFieldDescriptor
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return-object v0
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""".toInstructions(lithoMethod)
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// insert blocks and branch instructions
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lithoMethodImplementation.insertBlocks(
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0,
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block1,
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listOf(ifEqzFirstInstruction),
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block2,
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listOf(ifEqzSecondInstruction),
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block3,
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""",
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listOf(ExternalLabel("not_an_ad", lithoMethod.instruction(insertIndex)))
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)
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}
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}
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@ -414,142 +386,4 @@ class GeneralBytecodeAdsPatch : BytecodePatch() {
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instruction.opcode == Opcode.CONST && (instruction as Instruction31i).narrowLiteral == lithoConstant
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} ?: false
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}
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private fun MutableClass.addGetIsEmptyMethod() {
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val getIsEmptyImplementation = MutableMethodImplementation(1)
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// create target instructions
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val firstTargetInstruction = BuilderInstruction11n(Opcode.CONST_4, 0, 1)
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val secondTargetInstruction = BuilderInstruction11n(Opcode.CONST_4, 0, 0)
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// add instructions to the instruction list
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getIsEmptyImplementation.addInstructions(
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0, listOf(
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// BuilderInstruction21t(Opcode.IF_EQZ, 0, first),
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BuilderInstruction35c(
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Opcode.INVOKE_VIRTUAL,
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1,
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0,
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0,
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0,
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0,
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0,
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ImmutableMethodReference("Ljava/lang/String;", "isEmpty", null, "Z")
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),
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BuilderInstruction11x(Opcode.MOVE_RESULT, 0),
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// BuilderInstruction21t(Opcode.IF_EQZ, 0, second),
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// BuilderInstruction10t(Opcode.GOTO, first),
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secondTargetInstruction,
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BuilderInstruction11x(Opcode.RETURN, 0),
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firstTargetInstruction,
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BuilderInstruction11x(Opcode.RETURN, 0),
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)
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)
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val getIsEmptyInstructions = getIsEmptyImplementation.instructions
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// create labels for the target instructions
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val firstLabel =
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getIsEmptyImplementation.newLabelForIndex(getIsEmptyInstructions.indexOf(firstTargetInstruction))
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val secondLabel =
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getIsEmptyImplementation.newLabelForIndex(getIsEmptyInstructions.indexOf(secondTargetInstruction))
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// create branch instructions to the labels
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val ifEqzFirstInstruction = BuilderInstruction21t(Opcode.IF_EQZ, 0, firstLabel)
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val ifEqzSecondInstruction = BuilderInstruction21t(Opcode.IF_EQZ, 0, secondLabel)
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val gotoInstruction = BuilderInstruction10t(Opcode.GOTO, firstLabel)
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// insert remaining branch instructions, order of adding those instructions is important
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getIsEmptyImplementation.addInstructions(
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2, listOf(
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ifEqzSecondInstruction, gotoInstruction
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)
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)
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getIsEmptyImplementation.addInstruction(
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0, ifEqzFirstInstruction
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)
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this.addMethod(
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createMutableMethod(
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this.type, "getIsEmpty", "Z", "Ljava/lang/String;", getIsEmptyImplementation
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)
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)
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}
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private fun MutableClass.createGetTemplateNameMethod(lithoMethodImplementation: MethodImplementation): MutableMethod {
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var counter = 1
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val descriptors = buildList {
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for (instruction in lithoMethodImplementation.instructions) {
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if (instruction !is ReferenceInstruction) continue
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if (counter++ > 4) break
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add(instruction.toDescriptor<MethodReference>())
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}
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}
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val getTemplateNameImplementation = MutableMethodImplementation(2)
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// create code blocks
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val block1 = """
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invoke-virtual {p0}, ${descriptors[0]}
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move-result-object p0
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const v0, $lithoConstant
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invoke-static {p0, v0}, ${descriptors[1]}
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move-result-object p0
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""".toInstructions()
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val block2 = """
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invoke-static {p0}, ${descriptors[2]}
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move-result-object p0
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invoke-virtual {p0}, ${descriptors[3]}
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move-result-object v0
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invoke-static {v0}, ${this.type}->getIsEmpty(Ljava/lang/String;)Z
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move-result v0
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""".toInstructions()
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val block3 = """
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invoke-virtual {p0}, ${descriptors[3]}
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move-result-object p0
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return-object p0
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""".toInstructions()
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// create target instruction
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val targetInstruction = BuilderInstruction11n(Opcode.CONST_4, 1, 0)
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// and remaining instruction
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val returnInstruction = BuilderInstruction11x(Opcode.RETURN_OBJECT, 1)
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// insert blocks and instructions
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getTemplateNameImplementation.insertBlocks(
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0,
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block1,
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block2,
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block3,
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listOf(
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targetInstruction, returnInstruction
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),
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)
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// create label for target instruction
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val targetInstructionLabel =
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getTemplateNameImplementation.newLabelForIndex(getTemplateNameImplementation.instructions.size - 2)
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// create branch instructions to the label
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val ifEqzInstruction = BuilderInstruction21t(Opcode.IF_EQZ, 1, targetInstructionLabel)
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val ifNezInstruction = BuilderInstruction21t(Opcode.IF_NEZ, 0, targetInstructionLabel)
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// insert branch instructions
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getTemplateNameImplementation.addInstruction(
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block1.size, ifEqzInstruction
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)
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getTemplateNameImplementation.addInstruction(
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block1.size + block2.size + 1, ifNezInstruction
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)
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// create the method
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return createMutableMethod(
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this.type,
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"getTemplateName",
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"Ljava/lang/String;",
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descriptors[0].split("->")[0], // a bit weird to get the type this way,
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getTemplateNameImplementation
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)
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}
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}
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Block a user