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feat: general-reddit-ads patch (#235)

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Alberto Ponces 2022-07-26 17:10:54 +01:00 committed by GitHub
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13
src/main/kotlin/app/revanced/patches/reddit/ad/general/annotations/GeneralAdsCompatibility.kt Normal file
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package app.revanced.patches.reddit.ad.general.annotations
import app.revanced.patcher.annotation.Compatibility
import app.revanced.patcher.annotation.Package
@Compatibility(
[Package(
"com.reddit.frontpage", arrayOf()
)]
)
@Target(AnnotationTarget.CLASS)
@Retention(AnnotationRetention.RUNTIME)
internal annotation class GeneralAdsCompatibility

55
src/main/kotlin/app/revanced/patches/reddit/ad/general/patch/GeneralAdsPatch.kt Normal file
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package app.revanced.patches.reddit.ad.general.patch
import app.revanced.patcher.annotation.Description
import app.revanced.patcher.annotation.Name
import app.revanced.patcher.annotation.Version
import app.revanced.patcher.data.impl.BytecodeData
import app.revanced.patcher.extensions.replaceInstruction
import app.revanced.patcher.patch.annotations.Patch
import app.revanced.patcher.patch.impl.BytecodePatch
import app.revanced.patcher.patch.PatchResult
import app.revanced.patcher.patch.PatchResultSuccess
import app.revanced.patches.reddit.ad.general.annotations.GeneralAdsCompatibility
import org.jf.dexlib2.Opcode
import org.jf.dexlib2.builder.instruction.BuilderInstruction21c
import org.jf.dexlib2.iface.instruction.ReferenceInstruction
import org.jf.dexlib2.iface.reference.StringReference
import org.jf.dexlib2.immutable.reference.ImmutableStringReference
@Patch
@Name("general-reddit-ads")
@Description("Removes general ads from the Reddit frontpage and subreddits.")
@GeneralAdsCompatibility
@Version("0.0.1")
class GeneralAdsPatch : BytecodePatch() {
override fun execute(data: BytecodeData): PatchResult {
data.classes.forEach { classDef ->
classDef.methods.forEach methodLoop@{ method ->
val implementation = method.implementation ?: return@methodLoop
implementation.instructions.forEachIndexed { i, instruction ->
if (instruction.opcode != Opcode.CONST_STRING) return@forEachIndexed
if (((instruction as ReferenceInstruction).reference as StringReference).string != "AdPost") return@forEachIndexed
val proxiedClass = data.proxy(classDef).resolve()
val proxiedImplementation = proxiedClass.methods.first {
it.name == method.name && it.parameterTypes.containsAll(method.parameterTypes)
}.implementation!!
var newString = "AdPost1"
if (proxiedImplementation.instructions[i - 1].opcode == Opcode.CONST_STRING) {
newString = "SubredditPost"
}
proxiedImplementation.replaceInstruction(
i, BuilderInstruction21c(
Opcode.CONST_STRING, (proxiedImplementation.instructions[i] as BuilderInstruction21c).registerA, ImmutableStringReference(newString)
)
)
}
}
}
return PatchResultSuccess()
}
}