Add platform channel specific code for mac os

macos/CakeWallet/decrypt.swift

@@ -0,0 +1,16 @@
+import Foundation
+import CryptoSwift
+
+func decrypt(data: Data, key: String, salt: String) -> String? {
+    let keyBytes = key.data(using: .utf8)?.bytes ?? []
+    let saltBytes = salt.data(using: .utf8)?.bytes ?? []
+    
+    guard let PBKDF2key = try? PKCS5.PBKDF2(password: keyBytes, salt:  saltBytes, iterations: 4096, variant: .sha256).calculate(),
+          let cipher = try? Blowfish(key: PBKDF2key, padding: .pkcs7),
+          let decryptedBytes = try? cipher.decrypt(data.bytes) else {
+        return nil
+    }
+    
+    let decryptedData = Data(decryptedBytes)
+    return String(data: decryptedData, encoding: .utf8)
+}

macos/CakeWallet/secRandom.swift

@@ -0,0 +1,12 @@
+import Foundation
+
+func secRandom(count: Int) -> Data? {
+    var bytes = [Int8](repeating: 0, count: count)
+    let status = SecRandomCopyBytes(kSecRandomDefault, bytes.count, &bytes)
+
+    if status == errSecSuccess {
+        return Data(bytes: bytes, count: bytes.count)
+    }
+    
+    return nil
+}

macos/Podfile

@@ -31,6 +31,11 @@ target 'Runner' do
   use_modular_headers!
 
   flutter_install_all_macos_pods File.dirname(File.realpath(__FILE__))
+
+  # Cake Wallet (Legacy)
+  pod 'CryptoSwift'
+#   Not supported on macos
+#   pod 'UnstoppableDomainsResolution', '~> 5.0.0'
 end
 
 post_install do |installer|

macos/Podfile.lock

@@ -2,6 +2,7 @@ PODS:
   - connectivity_macos (0.0.1):
     - FlutterMacOS
     - Reachability
+  - CryptoSwift (1.3.1)
   - cw_monero (0.0.1):
     - cw_monero/Boost (= 0.0.1)
     - cw_monero/Monero (= 0.0.1)
@@ -43,6 +44,7 @@ PODS:
 
 DEPENDENCIES:
   - connectivity_macos (from `Flutter/ephemeral/.symlinks/plugins/connectivity_macos/macos`)
+  - CryptoSwift
   - cw_monero (from `Flutter/ephemeral/.symlinks/plugins/cw_monero/macos`)
   - devicelocale (from `Flutter/ephemeral/.symlinks/plugins/devicelocale/macos`)
   - flutter_secure_storage_macos (from `Flutter/ephemeral/.symlinks/plugins/flutter_secure_storage_macos/macos`)
@@ -57,6 +59,7 @@ DEPENDENCIES:
 
 SPEC REPOS:
   trunk:
+    - CryptoSwift
     - Reachability
 
 EXTERNAL SOURCES:
@@ -87,6 +90,7 @@ EXTERNAL SOURCES:
 
 SPEC CHECKSUMS:
   connectivity_macos: 5dae6ee11d320fac7c05f0d08bd08fc32b5514d9
+  CryptoSwift: f12f037f6d0fcd6d48c96db0071b653de64e6c4d
   cw_monero: f8b7f104508efba2591548e76b5c058d05cba3f0
   devicelocale: 9f0f36ac651cabae2c33f32dcff4f32b61c38225
   flutter_secure_storage_macos: 6ceee8fbc7f484553ad17f79361b556259df89aa
@@ -100,6 +104,6 @@ SPEC CHECKSUMS:
   shared_preferences_foundation: 297b3ebca31b34ec92be11acd7fb0ba932c822ca
   url_launcher_macos: c04e4fa86382d4f94f6b38f14625708be3ae52e2
 
-PODFILE CHECKSUM: 6eac6b3292e5142cfc23bdeb71848a40ec51c14c
+PODFILE CHECKSUM: 95c2abf1742d9564d190610743847d385992e6cc
 
 COCOAPODS: 1.11.3

macos/Runner.xcodeproj/project.pbxproj

@@ -27,6 +27,8 @@
 		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
 		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
 		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+		9F3F7550298098120030A1D7 /* secRandom.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F3F754D298098120030A1D7 /* secRandom.swift */; };
+		9F3F7551298098120030A1D7 /* decrypt.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F3F754E298098120030A1D7 /* decrypt.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -72,6 +74,8 @@
 		359F2F22842E234537DED5E3 /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Release.xcconfig; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; path = Debug.xcconfig; sourceTree = "<group>"; };
+		9F3F754D298098120030A1D7 /* secRandom.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = secRandom.swift; path = CakeWallet/secRandom.swift; sourceTree = "<group>"; };
+		9F3F754E298098120030A1D7 /* decrypt.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = decrypt.swift; path = CakeWallet/decrypt.swift; sourceTree = "<group>"; };
 		C84AA35EA80D710889C68D81 /* Pods_Runner.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_Runner.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		FF499CFF131B036E3C5638D0 /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
@@ -102,6 +106,8 @@
 		33CC10E42044A3C60003C045 = {
 			isa = PBXGroup;
 			children = (
+				9F3F754E298098120030A1D7 /* decrypt.swift */,
+				9F3F754D298098120030A1D7 /* secRandom.swift */,
 				33FAB671232836740065AC1E /* Runner */,
 				33CEB47122A05771004F2AC0 /* Flutter */,
 				33CC10EE2044A3C60003C045 /* Products */,
@@ -338,6 +344,8 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				9F3F7550298098120030A1D7 /* secRandom.swift in Sources */,
+				9F3F7551298098120030A1D7 /* decrypt.swift in Sources */,
 				33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */,
 				33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */,
 				335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */,

macos/Runner/AppDelegate.swift

@@ -1,9 +1,101 @@
 import Cocoa
 import FlutterMacOS
+import IOKit.pwr_mgt
 
 @NSApplicationMain
 class AppDelegate: FlutterAppDelegate {
-  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
-    return true
+        return true
-  }
+    }
+
+    var assertionID: IOPMAssertionID = 0
+
+    override func applicationDidFinishLaunching(_ notification: Notification) {
+        let controller : FlutterViewController = mainFlutterWindow?.contentViewController as! FlutterViewController
+        let legacyMigrationChannel = FlutterMethodChannel(
+            name: "com.cakewallet.cakewallet/legacy_wallet_migration",
+            binaryMessenger: controller.engine.binaryMessenger)
+        legacyMigrationChannel.setMethodCallHandler({
+            (call: FlutterMethodCall, result: @escaping FlutterResult) -> Void in
+
+            switch call.method {
+            case "decrypt":
+                guard let args = call.arguments as? Dictionary<String, Any>,
+                      let data = args["bytes"] as? FlutterStandardTypedData,
+                      let key = args["key"] as? String,
+                      let salt = args["salt"] as? String else {
+                    result(nil)
+                    return
+                }
+
+                let content = decrypt(data: data.data, key: key, salt: salt)
+                result(content)
+            case "read_user_defaults":
+                guard let args = call.arguments as? Dictionary<String, Any>,
+                      let key = args["key"] as? String,
+                      let type = args["type"] as? String else {
+                    result(nil)
+                    return
+                }
+
+                var value: Any?
+
+                switch (type) {
+                case "string":
+                    value = UserDefaults.standard.string(forKey: key)
+                case "int":
+                    value = UserDefaults.standard.integer(forKey: key)
+                case "bool":
+                    value = UserDefaults.standard.bool(forKey: key)
+                default:
+                    break
+                }
+
+                result(value)
+            default:
+                result(FlutterMethodNotImplemented)
+            }
+        })
+
+        let utilsChannel = FlutterMethodChannel(
+            name: "com.cake_wallet/native_utils",
+            binaryMessenger: controller.engine.binaryMessenger)
+        utilsChannel.setMethodCallHandler({ [weak self] (call: FlutterMethodCall, result: @escaping FlutterResult) -> Void in
+            switch call.method {
+            case "sec_random":
+                guard let args = call.arguments as? Dictionary<String, Any>,
+                      let count = args["count"] as? Int else {
+                    result(nil)
+                    return
+                }
+
+                result(secRandom(count: count))
+            case "getUnstoppableDomainAddress":
+                // Not supported on macos
+                result(nil)
+            case "enableWakeScreen":
+                result(self?.enableWakeScreen())
+
+            case "disableWakeScreen":
+                result(self?.disableWakeScreen())
+
+            default:
+                result(FlutterMethodNotImplemented)
+            }
+        })
+    }
+
+
+    func enableWakeScreen(reason: String = "Disabling display sleep") -> Bool{
+          return IOPMAssertionCreateWithName( kIOPMAssertionTypeNoDisplaySleep as CFString,
+                                IOPMAssertionLevel(kIOPMAssertionLevelOn),
+                                reason as CFString,
+                                &assertionID) == kIOReturnSuccess
+    }
+
+    func disableWakeScreen() -> Bool{
+        IOPMAssertionRelease(assertionID)
+
+        return true
+    }
 }