From 2be738b75c4678f5df90f5216bd383f4841f54d9 Mon Sep 17 00:00:00 2001
From: inotia00 <ars258000@gmail.com>
Date: Tue, 28 Mar 2023 21:46:55 +0900
Subject: [PATCH] add `certificate-spoof` patch: fix Android Auto connection
 issue with MicroG builds

---
 .../CertificateCheckFingerprint.kt            |  9 +++++
 .../patch/AndroidAutoCertificatePatch.kt      | 35 +++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 src/main/kotlin/app/revanced/patches/music/misc/androidauto/fingerprints/CertificateCheckFingerprint.kt
 create mode 100644 src/main/kotlin/app/revanced/patches/music/misc/androidauto/patch/AndroidAutoCertificatePatch.kt

diff --git a/src/main/kotlin/app/revanced/patches/music/misc/androidauto/fingerprints/CertificateCheckFingerprint.kt b/src/main/kotlin/app/revanced/patches/music/misc/androidauto/fingerprints/CertificateCheckFingerprint.kt
new file mode 100644
index 000000000..d0d23129d
--- /dev/null
+++ b/src/main/kotlin/app/revanced/patches/music/misc/androidauto/fingerprints/CertificateCheckFingerprint.kt
@@ -0,0 +1,9 @@
+package app.revanced.patches.music.misc.androidauto.fingerprints
+
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+
+object CertificateCheckFingerprint : MethodFingerprint(
+    returnType = "Z",
+    parameters = listOf("L"),
+    strings = listOf("X509")
+)
\ No newline at end of file
diff --git a/src/main/kotlin/app/revanced/patches/music/misc/androidauto/patch/AndroidAutoCertificatePatch.kt b/src/main/kotlin/app/revanced/patches/music/misc/androidauto/patch/AndroidAutoCertificatePatch.kt
new file mode 100644
index 000000000..eb08cb903
--- /dev/null
+++ b/src/main/kotlin/app/revanced/patches/music/misc/androidauto/patch/AndroidAutoCertificatePatch.kt
@@ -0,0 +1,35 @@
+package app.revanced.patches.music.misc.androidauto.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.Patch
+import app.revanced.patches.music.misc.androidauto.fingerprints.CertificateCheckFingerprint
+import app.revanced.patches.shared.annotation.YouTubeMusicCompatibility
+
+@Patch
+@Name("certificate-spoof")
+@Description("Spoofs the YouTube Music certificate for Android Auto.")
+@YouTubeMusicCompatibility
+@Version("0.0.1")
+class AndroidAutoCertificatePatch : BytecodePatch(
+    listOf(CertificateCheckFingerprint)
+) {
+    override fun execute(context: BytecodeContext): PatchResult {
+
+        CertificateCheckFingerprint.result?.mutableMethod?.addInstructions(
+            0, """
+                const/4 v0, 0x1
+                return v0
+                """
+        ) ?: return CertificateCheckFingerprint.toErrorResult()
+
+        return PatchResultSuccess()
+    }
+}