mirror of
https://github.com/ReVanced/revanced-patcher.git
synced 2024-11-10 01:02:22 +01:00
refactor: move merging classes code to own class
This commit is contained in:
oSumAtrIX
parent
8f3ecc318c
commit
3e0bf8c863
2 changed files with 143 additions and 96 deletions
|
|
@ -7,12 +7,8 @@ import app.revanced.patcher.extensions.PatchExtensions.patchName
|
|||
import app.revanced.patcher.extensions.nullOutputStream
|
||||
import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint.Companion.resolve
|
||||
import app.revanced.patcher.patch.*
|
||||
import app.revanced.patcher.util.TypeUtil.traverseClassHierarchy
|
||||
import app.revanced.patcher.util.ClassMerger.merge
|
||||
import app.revanced.patcher.util.VersionReader
|
||||
import app.revanced.patcher.util.proxy.mutableTypes.MutableClass
|
||||
import app.revanced.patcher.util.proxy.mutableTypes.MutableClass.Companion.toMutable
|
||||
import app.revanced.patcher.util.proxy.mutableTypes.MutableField.Companion.toMutable
|
||||
import app.revanced.patcher.util.proxy.mutableTypes.MutableMethod.Companion.toMutable
|
||||
import brut.androlib.Androlib
|
||||
import brut.androlib.meta.UsesFramework
|
||||
import brut.androlib.options.BuildOptions
|
||||
|
|
@ -26,11 +22,8 @@ import brut.directory.ExtFile
|
|||
import lanchon.multidexlib2.BasicDexFileNamer
|
||||
import lanchon.multidexlib2.DexIO
|
||||
import lanchon.multidexlib2.MultiDexIO
|
||||
import org.jf.dexlib2.AccessFlags
|
||||
import org.jf.dexlib2.Opcodes
|
||||
import org.jf.dexlib2.iface.ClassDef
|
||||
import org.jf.dexlib2.iface.DexFile
|
||||
import org.jf.dexlib2.util.MethodUtil
|
||||
import org.jf.dexlib2.writer.io.MemoryDataStore
|
||||
import java.io.File
|
||||
import java.nio.file.Files
|
||||
|
|
@ -94,95 +87,10 @@ class Patcher(private val options: PatcherOptions) {
|
|||
|
||||
logger.trace("Type $type exists. Adding missing methods and fields.")
|
||||
|
||||
/**
|
||||
* Add missing fields and methods from [from].
|
||||
*
|
||||
* @param from The class to add methods and fields from.
|
||||
*/
|
||||
fun ClassDef.addMissingFrom(from: ClassDef) {
|
||||
var changed = false
|
||||
fun <T> ClassDef.transformClass(transform: (MutableClass) -> T): T {
|
||||
fun toMutableClass() =
|
||||
if (this@transformClass is MutableClass) this else this.toMutable()
|
||||
return transform(toMutableClass())
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if the [AccessFlags.PUBLIC] flag is set.
|
||||
*
|
||||
* @return True, if the flag is set.
|
||||
*/
|
||||
fun Int.isPublic() = AccessFlags.PUBLIC.isSet(this)
|
||||
|
||||
/**
|
||||
* Make a class and its super class public recursively.
|
||||
*/
|
||||
fun MutableClass.publicize() {
|
||||
context.bytecodeContext.traverseClassHierarchy(this) {
|
||||
if (accessFlags.isPublic()) return@traverseClassHierarchy
|
||||
|
||||
accessFlags = accessFlags.or(AccessFlags.PUBLIC.value)
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Add missing methods to the class, considering to publicise the [ClassDef] if necessary.
|
||||
*/
|
||||
fun ClassDef.addMissingMethods(): ClassDef {
|
||||
fun getMissingMethods() = from.methods.filterNot {
|
||||
this@addMissingMethods.methods.any { original ->
|
||||
MethodUtil.methodSignaturesMatch(original, it)
|
||||
}
|
||||
}
|
||||
|
||||
return getMissingMethods()
|
||||
.apply {
|
||||
if (isEmpty()) return@addMissingMethods this@addMissingMethods else changed =
|
||||
true
|
||||
}
|
||||
.map { it.toMutable() }
|
||||
.let { missingMethods ->
|
||||
this@addMissingMethods.transformClass { classDef ->
|
||||
classDef.apply {
|
||||
// make sure the class is public, if the class contains public methods
|
||||
if (missingMethods.any { it.accessFlags.isPublic() })
|
||||
classDef.publicize()
|
||||
|
||||
methods.addAll(missingMethods)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Add missing fields to the class, considering to publicise the [ClassDef] if necessary.
|
||||
*/
|
||||
fun ClassDef.addMissingFields(): ClassDef {
|
||||
fun getMissingFields() = from.fields.filterNot {
|
||||
this@addMissingFields.fields.any { original -> original.name == it.name }
|
||||
}
|
||||
|
||||
return getMissingFields()
|
||||
.apply {
|
||||
if (isEmpty()) return@addMissingFields this@addMissingFields else changed = true
|
||||
}
|
||||
.map { it.toMutable() }
|
||||
.let { missingFields ->
|
||||
this@addMissingFields.transformClass { classDef ->
|
||||
// make sure the class is public, if the class contains public fields
|
||||
if (missingFields.any { it.accessFlags.isPublic() })
|
||||
classDef.publicize()
|
||||
|
||||
classDef.apply { fields.addAll(missingFields) }
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
classes[existingClassIndex] = addMissingMethods().addMissingFields()
|
||||
.apply { if (!changed) return }
|
||||
existingClass.merge(classDef, context, logger).let { mergedClass ->
|
||||
if (mergedClass !== existingClass) // referential equality check
|
||||
classes[existingClassIndex] = mergedClass
|
||||
}
|
||||
|
||||
existingClass.addMissingFrom(classDef)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
139
src/main/kotlin/app/revanced/patcher/util/ClassMerger.kt
Normal file
139
src/main/kotlin/app/revanced/patcher/util/ClassMerger.kt
Normal file
|
|
@ -0,0 +1,139 @@
|
|||
package app.revanced.patcher.util
|
||||
|
||||
import app.revanced.patcher.PatcherContext
|
||||
import app.revanced.patcher.extensions.or
|
||||
import app.revanced.patcher.logging.Logger
|
||||
import app.revanced.patcher.util.ClassMerger.Utils.asMutableClass
|
||||
import app.revanced.patcher.util.ClassMerger.Utils.filterNotAny
|
||||
import app.revanced.patcher.util.ClassMerger.Utils.isPublic
|
||||
import app.revanced.patcher.util.ClassMerger.Utils.toPublic
|
||||
import app.revanced.patcher.util.TypeUtil.traverseClassHierarchy
|
||||
import app.revanced.patcher.util.proxy.mutableTypes.MutableClass
|
||||
import app.revanced.patcher.util.proxy.mutableTypes.MutableClass.Companion.toMutable
|
||||
import app.revanced.patcher.util.proxy.mutableTypes.MutableField.Companion.toMutable
|
||||
import app.revanced.patcher.util.proxy.mutableTypes.MutableMethod.Companion.toMutable
|
||||
import org.jf.dexlib2.AccessFlags
|
||||
import org.jf.dexlib2.iface.ClassDef
|
||||
import org.jf.dexlib2.util.MethodUtil
|
||||
import kotlin.reflect.KFunction2
|
||||
|
||||
/**
|
||||
* Experimental class to merge a [ClassDef] with another.
|
||||
* Note: This will not consider method implementations or if the class is missing a superclass or interfaces.
|
||||
*/
|
||||
internal object ClassMerger {
|
||||
/**
|
||||
* Merge a class with [otherClass].
|
||||
*
|
||||
* @param otherClass The class to merge with
|
||||
* @param context The context to traverse the class hierarchy in.
|
||||
* @param logger A logger.
|
||||
*/
|
||||
fun ClassDef.merge(otherClass: ClassDef, context: PatcherContext, logger: Logger? = null) = this
|
||||
.addMissingFields(otherClass, logger)
|
||||
.addMissingMethods(otherClass, logger)
|
||||
.publicize(otherClass, context, logger)
|
||||
|
||||
/**
|
||||
* Add methods which are missing but existing in [fromClass].
|
||||
*
|
||||
* @param fromClass The class to add missing methods from.
|
||||
* @param logger A logger.
|
||||
*/
|
||||
private fun ClassDef.addMissingMethods(fromClass: ClassDef, logger: Logger? = null): ClassDef {
|
||||
val missingMethods = fromClass.methods.let { fromMethods ->
|
||||
methods.filterNot { method ->
|
||||
fromMethods.any { fromMethod ->
|
||||
MethodUtil.methodSignaturesMatch(fromMethod, method)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (missingMethods.isEmpty()) return this
|
||||
|
||||
logger?.trace("Found ${missingMethods.size} missing methods")
|
||||
|
||||
return asMutableClass().apply {
|
||||
methods.addAll(missingMethods.map { it.toMutable() })
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Add fields which are missing but existing in [fromClass].
|
||||
*
|
||||
* @param fromClass The class to add missing fields from.
|
||||
* @param logger A logger.
|
||||
*/
|
||||
private fun ClassDef.addMissingFields(fromClass: ClassDef, logger: Logger? = null): ClassDef {
|
||||
val missingFields = fields.filterNotAny(fromClass.fields) { field, fromField ->
|
||||
fromField.name == field.name
|
||||
}
|
||||
|
||||
if (missingFields.isEmpty()) return this
|
||||
|
||||
logger?.trace("Found ${missingFields.size} missing fields")
|
||||
|
||||
return asMutableClass().apply {
|
||||
fields.addAll(missingFields.map { it.toMutable() })
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Make a class and its super class public recursively.
|
||||
* @param reference The class to check the [AccessFlags] of.
|
||||
* @param context The context to traverse the class hierarchy in.
|
||||
* @param logger A logger.
|
||||
*/
|
||||
private fun ClassDef.publicize(reference: ClassDef, context: PatcherContext, logger: Logger? = null) =
|
||||
if (reference.accessFlags.isPublic() && !accessFlags.isPublic())
|
||||
this.asMutableClass().apply {
|
||||
context.bytecodeContext.traverseClassHierarchy(this) {
|
||||
if (accessFlags.isPublic()) return@traverseClassHierarchy
|
||||
|
||||
logger?.trace("Publicizing ${this.type}")
|
||||
|
||||
accessFlags = accessFlags.toPublic()
|
||||
}
|
||||
}
|
||||
else this
|
||||
|
||||
private object Utils {
|
||||
fun ClassDef.asMutableClass() = if (this is MutableClass) this else this.toMutable()
|
||||
|
||||
/**
|
||||
* Check if the [AccessFlags.PUBLIC] flag is set.
|
||||
*
|
||||
* @return True, if the flag is set.
|
||||
*/
|
||||
fun Int.isPublic() = AccessFlags.PUBLIC.isSet(this)
|
||||
|
||||
/**
|
||||
* Make [AccessFlags] public.
|
||||
*
|
||||
* @return The new [AccessFlags].
|
||||
*/
|
||||
fun Int.toPublic() = this.or(AccessFlags.PUBLIC).and(AccessFlags.PRIVATE.value.inv())
|
||||
|
||||
/**
|
||||
* Filter [this] on [needles] not matching the given [predicate].
|
||||
*
|
||||
* @param this The hay to filter for [needles].
|
||||
* @param needles The needles to filter [this] with.
|
||||
* @param predicate The filter.
|
||||
* @return The [this] filtered on [needles] not matching the given [predicate].
|
||||
*/
|
||||
fun <HayType, NeedleType> Iterable<HayType>.filterNotAny(
|
||||
needles: Iterable<NeedleType>, predicate: (HayType, NeedleType) -> Boolean
|
||||
) = Iterable<HayType>::filterNot.any(this, needles, predicate)
|
||||
|
||||
fun <HayType, NeedleType> KFunction2<Iterable<HayType>, (HayType) -> Boolean, List<HayType>>.any(
|
||||
haystack: Iterable<HayType>,
|
||||
needles: Iterable<NeedleType>,
|
||||
predicate: (HayType, NeedleType) -> Boolean
|
||||
) = this(haystack) { hay ->
|
||||
needles.any { needle ->
|
||||
predicate(hay, needle)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue