gui.py: Add validation checks and download view

resources/sys_patch_download.py

@@ -0,0 +1,48 @@
+# Download PatcherSupportPkg for usage with Root Patching
+# Copyright (C) 2020-2022, Dhinak G, Mykola Grymalyuk
+
+from data import os_data
+from resources import utilities
+from pathlib import Path
+import shutil
+
+class grab_patcher_support_pkg:
+
+    def __init__(self, constants):
+        self.constants = constants
+    
+    def generate_pkg_link(self):
+        if self.constants.detected_os == os_data.os_data.monterey:
+            os_ver = "12-Monterey"
+        elif self.constants.detected_os == os_data.os_data.big_sur:
+            os_ver = "11-Big-Sur"
+        elif self.constants.detected_os == os_data.os_data.catalina:
+            os_ver = "10.15-Catalina"
+        elif self.constants.detected_os == os_data.os_data.mojave:
+            os_ver = "10.14-Mojave"
+        else:
+            raise Exception(f"Unsupported OS: {self.constants.detected_os}")
+        link = f"{self.constants.url_patcher_support_pkg}{self.constants.patcher_support_pkg_version}/{os_ver}.zip"
+        return os_ver, link
+
+    def download_files(self):
+        os_ver, link = self.generate_pkg_link()
+        if Path(self.constants.payload_apple_root_path).exists():
+            print("- Removing old Apple Binaries folder")
+            # Delete folder
+            shutil.rmtree(self.constants.payload_apple_root_path)
+        if Path(self.constants.payload_apple_root_path_zip).exists():
+            print("- Removing old Apple Binaries zip")
+            Path(self.constants.payload_apple_root_path_zip).unlink()
+
+        download_result = None
+        local_zip = Path(self.constants.payload_path) / f"{os_ver}.zip"
+        if Path(local_zip).exists():
+            print(f"- Found local {os_ver} zip, skipping download")
+            print(f"- Duplicating into Apple.zip")
+            shutil.copy(local_zip, self.constants.payload_apple_root_path_zip)
+            download_result = True
+        else:
+            download_result = utilities.download_file(link, self.constants.payload_apple_root_path_zip)
+
+        return download_result, os_ver, link