feat(syncforreddit): add disable-ads patch (ReVanced#2066)

Co-authored-by: oSumAtrIX <[email protected]>

src/main/kotlin/app/revanced/patches/syncforreddit/ads/annotations/DisableAdsCompatibility.kt

@@ -0,0 +1,8 @@
+package app.revanced.patches.syncforreddit.ads.annotations
+
+import app.revanced.patcher.annotation.Compatibility
+import app.revanced.patcher.annotation.Package
+
+@Compatibility([Package("com.laurencedawson.reddit_sync")])
+@Target(AnnotationTarget.CLASS)
+internal annotation class DisableAdsCompatibility

src/main/kotlin/app/revanced/patches/syncforreddit/ads/fingerprints/IsAdsEnabledFingerprint.kt

@@ -0,0 +1,11 @@
+package app.revanced.patches.syncforreddit.ads.fingerprints
+
+import app.revanced.patcher.extensions.or
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+import org.jf.dexlib2.AccessFlags
+
+object IsAdsEnabledFingerprint : MethodFingerprint(
+    returnType = "Z",
+    access = AccessFlags.PUBLIC or AccessFlags.STATIC,
+    strings = listOf("SyncIapHelper")
+)

src/main/kotlin/app/revanced/patches/syncforreddit/ads/patch/DisableAdsPatch.kt

@@ -0,0 +1,39 @@
+package app.revanced.patches.syncforreddit.ads.patch
+
+import app.revanced.extensions.toErrorResult
+import app.revanced.patcher.annotation.Description
+import app.revanced.patcher.annotation.Name
+import app.revanced.patcher.annotation.Version
+import app.revanced.patcher.data.BytecodeContext
+import app.revanced.patcher.extensions.addInstructions
+import app.revanced.patcher.patch.BytecodePatch
+import app.revanced.patcher.patch.PatchResult
+import app.revanced.patcher.patch.PatchResultSuccess
+import app.revanced.patcher.patch.annotations.DependsOn
+import app.revanced.patcher.patch.annotations.Patch
+import app.revanced.patches.syncforreddit.ads.annotations.DisableAdsCompatibility
+import app.revanced.patches.syncforreddit.ads.fingerprints.IsAdsEnabledFingerprint
+import app.revanced.patches.syncforreddit.detection.piracy.patch.DisablePiracyDetectionPatch
+
+@Patch
+@Name("disable-ads")
+@DependsOn([DisablePiracyDetectionPatch::class])
+@Description("Disables ads.")
+@Version("0.0.1")
+@DisableAdsCompatibility
+class DisableAdsPatch : BytecodePatch(listOf(IsAdsEnabledFingerprint)) {
+    override fun execute(context: BytecodeContext): PatchResult {
+        IsAdsEnabledFingerprint.result?.mutableMethod?.apply {
+            addInstructions(
+                0,
+                """
+                const/4 v0, 0x0
+                return v0
+            """
+            )
+        } ?: return IsAdsEnabledFingerprint.toErrorResult()
+
+        return PatchResultSuccess()
+    }
+
+}

src/main/kotlin/app/revanced/patches/syncforreddit/detection/piracy/fingerprints/PiracyDetectionFingerprint.kt

@@ -0,0 +1,29 @@
+package app.revanced.patches.syncforreddit.detection.piracy.fingerprints
+
+import app.revanced.patcher.extensions.or
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+import org.jf.dexlib2.AccessFlags
+import org.jf.dexlib2.Opcode
+import org.jf.dexlib2.iface.instruction.ReferenceInstruction
+import org.jf.dexlib2.iface.reference.TypeReference
+
+object PiracyDetectionFingerprint : MethodFingerprint(
+    returnType = "V",
+    access = AccessFlags.PRIVATE or AccessFlags.FINAL,
+    opcodes = listOf(
+        Opcode.NEW_INSTANCE,
+        Opcode.INVOKE_DIRECT,
+        Opcode.NEW_INSTANCE,
+        Opcode.INVOKE_DIRECT,
+        Opcode.INVOKE_VIRTUAL
+    ),
+    customFingerprint = { method ->
+        method.implementation?.instructions?.any {
+            if (it.opcode != Opcode.NEW_INSTANCE) return@any false
+
+            val reference = (it as ReferenceInstruction).reference
+
+            reference.toString() == "Lcom/github/javiersantos/piracychecker/PiracyChecker;"
+        } ?: false
+    }
+)

src/main/kotlin/app/revanced/patches/syncforreddit/detection/piracy/patch/DisablePiracyDetectionPatch.kt

@@ -0,0 +1,28 @@
+package app.revanced.patches.syncforreddit.detection.piracy.patch
+
+import app.revanced.extensions.toErrorResult
+import app.revanced.patcher.annotation.Description
+import app.revanced.patcher.annotation.Version
+import app.revanced.patcher.data.BytecodeContext
+import app.revanced.patcher.extensions.addInstructions
+import app.revanced.patcher.patch.BytecodePatch
+import app.revanced.patcher.patch.PatchResult
+import app.revanced.patcher.patch.PatchResultSuccess
+import app.revanced.patches.syncforreddit.detection.piracy.fingerprints.PiracyDetectionFingerprint
+
+@Description("Disables detection of modified versions.")
+@Version("0.0.1")
+class DisablePiracyDetectionPatch : BytecodePatch(listOf(PiracyDetectionFingerprint)) {
+    override fun execute(context: BytecodeContext): PatchResult {
+        PiracyDetectionFingerprint.result?.mutableMethod?.apply {
+            addInstructions(
+                0,
+                """
+                return-void
+            """
+            )
+        } ?: return PiracyDetectionFingerprint.toErrorResult()
+
+        return PatchResultSuccess()
+    }
+}