feat: tiktok-ads patch (#335)

src/main/kotlin/app/revanced/patches/tiktok/ad/annotations/TiktokAdsCompatibility.kt

@@ -0,0 +1,14 @@
+package app.revanced.patches.tiktok.ad.annotations
+
+import app.revanced.patcher.annotation.Compatibility
+import app.revanced.patcher.annotation.Package
+
+@Compatibility(
+    [
+        Package("com.ss.android.ugc.trill", arrayOf()),
+        Package("com.zhiliaoapp.musically", arrayOf())
+    ]
+)
+@Target(AnnotationTarget.CLASS)
+@Retention(AnnotationRetention.RUNTIME)
+internal annotation class TiktokAdsCompatibility

src/main/kotlin/app/revanced/patches/tiktok/ad/fingerprints/FeedItemListCloneFingerprint.kt

@@ -0,0 +1,20 @@
+package app.revanced.patches.tiktok.ad.fingerprints
+
+import app.revanced.patcher.annotation.Name
+import app.revanced.patcher.annotation.Version
+import app.revanced.patcher.fingerprint.method.annotation.MatchingMethod
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+import app.revanced.patches.tiktok.ad.annotations.TiktokAdsCompatibility
+
+@Name("feed-item-clone-fingerprint")
+@MatchingMethod(
+    "Lcom/ss/android/ugc/aweme/feed/model/FeedItemList;",
+    "clone",
+)
+@TiktokAdsCompatibility
+@Version("0.0.1")
+object FeedItemListCloneFingerprint : MethodFingerprint(
+    null, null, null, null,null, { methodDef ->
+        methodDef.definingClass.endsWith("/FeedItemList;") && methodDef.name == "clone"
+    }
+)

src/main/kotlin/app/revanced/patches/tiktok/ad/patch/TiktokAdsPatch.kt

@@ -0,0 +1,48 @@
+package app.revanced.patches.tiktok.ad.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.addInstruction
+import app.revanced.patcher.patch.PatchResult
+import app.revanced.patcher.patch.PatchResultError
+import app.revanced.patcher.patch.PatchResultSuccess
+import app.revanced.patcher.patch.annotations.Patch
+import app.revanced.patcher.patch.impl.BytecodePatch
+import app.revanced.patches.tiktok.ad.annotations.TiktokAdsCompatibility
+import app.revanced.patches.tiktok.ad.fingerprints.FeedItemListCloneFingerprint
+import org.jf.dexlib2.Opcode
+import org.jf.dexlib2.iface.instruction.ReferenceInstruction
+import org.jf.dexlib2.iface.instruction.TwoRegisterInstruction
+import org.jf.dexlib2.iface.reference.FieldReference
+
+@Patch
+@Name("tiktok-ads")
+@Description("Removes ads from TikTok.")
+@TiktokAdsCompatibility
+@Version("0.0.1")
+class TiktokAdsPatch : BytecodePatch(
+    listOf(FeedItemListCloneFingerprint)
+) {
+    override fun execute(data: BytecodeData): PatchResult {
+        val method = FeedItemListCloneFingerprint.result!!.mutableMethod
+        // iterate all instructions in the clone method
+        for ((index, instruction) in method.implementation!!.instructions.withIndex()) {
+            // conditions for the instruction we need
+            if (instruction.opcode.ordinal != Opcode.IPUT_OBJECT.ordinal) continue
+            val clonePreloadAdsFieldInstruction = (instruction as? ReferenceInstruction)
+            if ((clonePreloadAdsFieldInstruction?.reference as? FieldReference)?.name != "preloadAds") continue
+
+            // set null instead of the field "preloadAds"
+            val overrideRegister = (clonePreloadAdsFieldInstruction as TwoRegisterInstruction).registerA
+            method.addInstruction(
+                index,
+                "const/4 v$overrideRegister, 0x0"
+            )
+            return PatchResultSuccess()
+        }
+
+        return PatchResultError("Could not find required instruction.")
+    }
+}