Make files accessible when app in background

AlphaWallet/Core/Coordinators/Alerts/StorageType.swift

@@ -77,6 +77,7 @@ struct FileStorage: StorageType {
             do {
                 try data.write(to: url, options: .atomicWrite)
                 try url.addSkipBackupAttributeToItemAtURL()
+                try url.addProtectionKeyNone()
 
                 result = true
             } catch {
@@ -116,4 +117,12 @@ extension URL {
 
         try self.setResourceValues(resourceValues)
     }
+
+    mutating func addProtectionKeyNone() throws {
+        guard FileManager.default.fileExists(atPath: relativePath) else { return }
+
+        try FileManager.default.setAttributes([
+            FileAttributeKey.protectionKey: FileProtectionType.none
+        ], ofItemAtPath: relativePath)
+    }
 }

AlphaWallet/Core/Types/RealmStore.swift

@@ -10,19 +10,25 @@ import Foundation
 
 final class RealmStore {
     private let queue: DispatchQueue
+    private let config: Realm.Configuration
     private let realm: Realm
 
-    public init(queue: DispatchQueue = DispatchQueue(label: "RealmStore.syncQueue", qos: .background), realm: Realm) {
+    public init(queue: DispatchQueue = DispatchQueue(label: "com.RealmStore.syncQueue", qos: .background), realm: Realm) {
         self.queue = queue
         self.realm = realm
+        self.config = realm.configuration
     }
 
     func performSync(_ callback: (Realm) -> Void) {
-        dispatchPrecondition(condition: .notOnQueue(queue))
-        queue.sync { [unowned self] in
-            autoreleasepool {
-                let realm = self.realm.threadSafe
-                callback(realm)
+        if Thread.isMainThread {
+            callback(realm)
+        } else {
+            dispatchPrecondition(condition: .notOnQueue(queue))
+            queue.sync { [unowned self] in
+                autoreleasepool {
+                    let realm = try! Realm(configuration: config)
+                    callback(realm)
+                }
             }
         }
     }

AlphaWallet/Tokens/Types/TokenObject.swift

@@ -383,6 +383,20 @@ extension Wallet.functional {
     static func realm(forAccount account: Wallet) -> Realm {
         let migration = MigrationInitializer(account: account)
         migration.perform()
-        return try! Realm(configuration: migration.config)
+        
+        let realm = try! Realm(configuration: migration.config)
+
+        let realmUrl = migration.config.fileURL!
+        let realmUrls = [
+            realmUrl,
+            realmUrl.appendingPathExtension("lock"),
+            realmUrl.appendingPathExtension("note"),
+            realmUrl.appendingPathExtension("management")
+        ]
+        for each in realmUrls {
+            try? FileManager.default.setAttributes([FileAttributeKey.protectionKey: FileProtectionType.none], ofItemAtPath: each.relativePath)
+        }
+
+        return realm
     }
 }