CrowdControl/Assets/Feel/MMTools/Tools/MMSaveLoad/MMSaveLoadManagerMethodJsonEncrypted.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.IO;
using System.Text;
using System.Security.Cryptography;

namespace MoreMountains.Tools
{
	public class MMSaveLoadManagerMethodJsonEncrypted : MMSaveLoadManagerEncrypter, IMMSaveLoadManagerMethod
	{
		/// <summary>
		/// Saves the specified object at the specified location to disk, converts it to json and encrypts it
		/// </summary>
		/// <param name="objectToSave"></param>
		/// <param name="saveFile"></param>
		public void Save(object objectToSave, FileStream saveFile)
		{
			string json = JsonUtility.ToJson(objectToSave);
			// if you prefer using NewtonSoft's JSON lib uncomment the line below and commment the line above
			//string json = Newtonsoft.Json.JsonConvert.SerializeObject(objectToSave);
			using (MemoryStream memoryStream = new MemoryStream())
				using (StreamWriter streamWriter = new StreamWriter(memoryStream))
				{
					streamWriter.Write(json);
					streamWriter.Flush();
					memoryStream.Position = 0;
					Encrypt(memoryStream, saveFile, Key);
				}
			saveFile.Close();
		}

		/// <summary>
		/// Loads the specified file, decrypts it and decodes it
		/// </summary>
		/// <param name="objectType"></param>
		/// <param name="saveFile"></param>
		/// <returns></returns>
		public object Load(System.Type objectType, FileStream saveFile)
		{
			object savedObject = null;
			using (MemoryStream memoryStream = new MemoryStream())
				using (StreamReader streamReader = new StreamReader(memoryStream))
				{
					try
					{
						Decrypt(saveFile, memoryStream, Key);
					}
					catch (CryptographicException ce)
					{
						Debug.LogError("[MMSaveLoadManager] Encryption key error: " + ce.Message);
						return null;
					}
					memoryStream.Position = 0;
					savedObject = JsonUtility.FromJson(streamReader.ReadToEnd(), objectType);
					// if you prefer using NewtonSoft's JSON lib uncomment the line below and commment the line above
					//savedObject = Newtonsoft.Json.JsonConvert.DeserializeObject(sr.ReadToEnd(), objectType); 
				}
			saveFile.Close();
			return savedObject;
		}

	}
}