From eac35ef8f449a5bfe9560896c2339a924cb63fde Mon Sep 17 00:00:00 2001
From: Riley Testut <riley@rileytestut.com>
Date: Mon, 4 Oct 2021 13:21:24 -0700
Subject: [PATCH] [AltServer] Fixes fetching anisette data on macOS 10.14
 Mojave

AltXPC does not work on Mojave, so only attempt it on macOS 10.15 Catalina or later.
---
 AltServer/AnisetteDataManager.swift | 38 ++++++++++++++++++-----------
 1 file changed, 24 insertions(+), 14 deletions(-)

diff --git a/AltServer/AnisetteDataManager.swift b/AltServer/AnisetteDataManager.swift
index b5c26afb..a54cf02f 100644
--- a/AltServer/AnisetteDataManager.swift
+++ b/AltServer/AnisetteDataManager.swift
@@ -53,22 +53,31 @@ class AnisetteDataManager: NSObject
     
     func requestAnisetteData(_ completion: @escaping (Result<ALTAnisetteData, Error>) -> Void)
     {
-        self.requestAnisetteDataFromXPCService { (result) in
-            do
-            {
-                let anisetteData = try result.get()
-                completion(.success(anisetteData))
-            }
-            catch CocoaError.xpcConnectionInterrupted
-            {
-                // SIP and/or AMFI are not disabled, so fall back to Mail plug-in.
-                self.requestAnisetteDataFromPlugin { (result) in
-                    completion(result)
+        if #available(macOS 10.15, *)
+        {
+            self.requestAnisetteDataFromXPCService { (result) in
+                do
+                {
+                    let anisetteData = try result.get()
+                    completion(.success(anisetteData))
+                }
+                catch CocoaError.xpcConnectionInterrupted
+                {
+                    // SIP and/or AMFI are not disabled, so fall back to Mail plug-in.
+                    self.requestAnisetteDataFromPlugin { (result) in
+                        completion(result)
+                    }
+                }
+                catch
+                {
+                    completion(.failure(error))
                 }
             }
-            catch
-            {
-                completion(.failure(error))
+        }
+        else
+        {
+            self.requestAnisetteDataFromPlugin { (result) in
+                completion(result)
             }
         }
     }
@@ -87,6 +96,7 @@ class AnisetteDataManager: NSObject
 
 private extension AnisetteDataManager
 {
+    @available(macOS 10.15, *)
     func requestAnisetteDataFromXPCService(completion: @escaping (Result<ALTAnisetteData, Error>) -> Void)
     {
         guard let proxy = self.xpcConnection.remoteObjectProxyWithErrorHandler({ (error) in