From 8ade9e88023566c34e7799ab90b19e8f78590333 Mon Sep 17 00:00:00 2001
From: naijun0403 <naijun0403@gmail.com>
Date: Wed, 14 May 2025 13:48:43 +0900
Subject: [PATCH] feat(kakaotalk): Add Ghost Mode patch to hide typing status

---
 patches/api/patches.api                       |  4 +++
 .../patches/kakaotalk/ghost/GhostModePatch.kt | 25 +++++++++++++++
 .../fingerprints/GhostModeFingerprint.kt      | 32 +++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 patches/src/main/kotlin/app/revanced/patches/kakaotalk/ghost/GhostModePatch.kt
 create mode 100644 patches/src/main/kotlin/app/revanced/patches/kakaotalk/ghost/fingerprints/GhostModeFingerprint.kt

diff --git a/patches/api/patches.api b/patches/api/patches.api
index 1c967bb33..d65cc263a 100644
--- a/patches/api/patches.api
+++ b/patches/api/patches.api
@@ -261,6 +261,10 @@ public final class app/revanced/patches/kakaotalk/emoticon/ForceEnableEmoticonPl
 	public static final fun getForceEnableEmoticonPlusPatch ()Lapp/revanced/patcher/patch/BytecodePatch;
 }
 
+public final class app/revanced/patches/kakaotalk/ghost/GhostModePatchKt {
+	public static final fun getGhostMode ()Lapp/revanced/patcher/patch/BytecodePatch;
+}
+
 public final class app/revanced/patches/kakaotalk/misc/RemoveShopTabPatchKt {
 	public static final fun getRemoveShopTabPatch ()Lapp/revanced/patcher/patch/BytecodePatch;
 }
diff --git a/patches/src/main/kotlin/app/revanced/patches/kakaotalk/ghost/GhostModePatch.kt b/patches/src/main/kotlin/app/revanced/patches/kakaotalk/ghost/GhostModePatch.kt
new file mode 100644
index 000000000..4edad69f2
--- /dev/null
+++ b/patches/src/main/kotlin/app/revanced/patches/kakaotalk/ghost/GhostModePatch.kt
@@ -0,0 +1,25 @@
+package app.revanced.patches.kakaotalk.ghost
+
+import app.revanced.patcher.extensions.InstructionExtensions.addInstructions
+import app.revanced.patcher.patch.bytecodePatch
+import app.revanced.patches.kakaotalk.ghost.fingerprints.ghostModeFingerprint
+
+@Suppress("unused")
+val ghostMode = bytecodePatch(
+    name = "Ghost Mode",
+    description = "Don't expose your typing status to the other party.",
+) {
+    compatibleWith("com.kakao.talk"("25.4.0"))
+
+    execute {
+        val method = ghostModeFingerprint.method
+
+        method.addInstructions(
+            0,
+            """
+                sget-object v0, Lnk0/C;->a:Lnk0/C;
+                return-object v0
+            """.trimIndent()
+        )
+    }
+}
\ No newline at end of file
diff --git a/patches/src/main/kotlin/app/revanced/patches/kakaotalk/ghost/fingerprints/GhostModeFingerprint.kt b/patches/src/main/kotlin/app/revanced/patches/kakaotalk/ghost/fingerprints/GhostModeFingerprint.kt
new file mode 100644
index 000000000..98fe2fe34
--- /dev/null
+++ b/patches/src/main/kotlin/app/revanced/patches/kakaotalk/ghost/fingerprints/GhostModeFingerprint.kt
@@ -0,0 +1,32 @@
+package app.revanced.patches.kakaotalk.ghost.fingerprints
+
+import app.revanced.patcher.fingerprint
+import com.android.tools.smali.dexlib2.AccessFlags
+import com.android.tools.smali.dexlib2.Opcode
+
+internal val ghostModeFingerprint = fingerprint {
+    accessFlags(AccessFlags.PUBLIC, AccessFlags.FINAL)
+    returns("Ljava/lang/Object;")
+    parameters("Ljava/lang/Object;")
+    strings(
+        "method",
+        "chatId",
+        "type",
+        "linkId"
+    )
+    opcodes(
+        Opcode.SGET_OBJECT,
+        Opcode.INVOKE_STATIC,
+        Opcode.INVOKE_STATIC,
+        Opcode.MOVE_RESULT_OBJECT,
+        Opcode.NEW_INSTANCE,
+        Opcode.IGET_WIDE,
+        Opcode.INVOKE_DIRECT,
+        Opcode.INVOKE_VIRTUAL,
+        Opcode.MOVE_RESULT_WIDE,
+        Opcode.CONST_WIDE_16,
+        Opcode.CMP_LONG,
+        Opcode.IF_GEZ,
+        Opcode.GOTO
+    )
+}
\ No newline at end of file