XCode project for app, moved app project to folder

SideStoreApp/Sources/SideStoreAppKit/Operations/FetchTrustedSourcesOperation.swift

@@ -0,0 +1,55 @@
+//
+//  FetchTrustedSourcesOperation.swift
+//  AltStore
+//
+//  Created by Riley Testut on 4/13/22.
+//  Copyright © 2022 Riley Testut. All rights reserved.
+//
+
+import Foundation
+
+private extension URL {
+    #if STAGING
+        static let trustedSources = URL(string: "https://raw.githubusercontent.com/SideStore/SideStore/develop/trustedapps.json")!
+    #else
+        static let trustedSources = URL(string: "https://raw.githubusercontent.com/SideStore/SideStore/develop/trustedapps.json")!
+    #endif
+}
+
+public extension FetchTrustedSourcesOperation {
+	public struct TrustedSource: Decodable {
+		public var identifier: String
+		public var sourceURL: URL?
+    }
+
+    private struct Response: Decodable {
+        var version: Int
+        var sources: [FetchTrustedSourcesOperation.TrustedSource]
+    }
+}
+
+public final class FetchTrustedSourcesOperation: ResultOperation<[FetchTrustedSourcesOperation.TrustedSource]> {
+	public override func main() {
+        super.main()
+
+        let dataTask = URLSession.shared.dataTask(with: .trustedSources) { data, response, error in
+            do {
+                if let response = response as? HTTPURLResponse {
+                    guard response.statusCode != 404 else {
+                        self.finish(.failure(URLError(.fileDoesNotExist, userInfo: [NSURLErrorKey: URL.trustedSources])))
+                        return
+                    }
+                }
+
+                guard let data = data else { throw error! }
+
+                let response = try Foundation.JSONDecoder().decode(Response.self, from: data)
+                self.finish(.success(response.sources))
+            } catch {
+                self.finish(.failure(error))
+            }
+        }
+
+        dataTask.resume()
+    }
+}