private static T LoadInternal(string filePath, List <string> fallbackFilePaths = null)
{
string typeName = typeof(T).Name;
if (!string.IsNullOrEmpty(filePath) && File.Exists(filePath))
{
DebugHelper.WriteLine($"{typeName} load started: {filePath}");
try
{
using (FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
if (fileStream.Length > 0)
{
T settings;
using (StreamReader streamReader = new StreamReader(fileStream))
using (JsonTextReader jsonReader = new JsonTextReader(streamReader))
{
JsonSerializer serializer = new JsonSerializer();
serializer.ContractResolver = new DPAPIEncryptedStringPropertyResolver();
serializer.Converters.Add(new StringEnumConverter());
serializer.DateTimeZoneHandling = DateTimeZoneHandling.Local;
serializer.ObjectCreationHandling = ObjectCreationHandling.Replace;
serializer.Error += Serializer_Error;
settings = serializer.Deserialize <T>(jsonReader);
}
if (settings == null)
{
throw new Exception($"{typeName} object is null.");
}
DebugHelper.WriteLine($"{typeName} load finished: {filePath}");
return(settings);
}
else
{
throw new Exception($"{typeName} file stream length is 0.");
}
}
}
catch (Exception e)
{
DebugHelper.WriteException(e, $"{typeName} load failed: {filePath}");
}
}
else
{
DebugHelper.WriteLine($"{typeName} file does not exist: {filePath}");
}
if (fallbackFilePaths != null && fallbackFilePaths.Count > 0)
{
filePath = fallbackFilePaths[0];
fallbackFilePaths.RemoveAt(0);
return(LoadInternal(filePath, fallbackFilePaths));
}
DebugHelper.WriteLine($"Loading new {typeName} instance.");
return(new T());
}
public override void CheckUpdate()
{
try
{
List <GitHubRelease> releases = GetReleases();
if (releases != null && releases.Count > 0)
{
GitHubRelease latestRelease;
if (IncludePreRelease)
{
latestRelease = releases[0];
}
else
{
latestRelease = releases.FirstOrDefault(x => !x.prerelease);
}
if (latestRelease != null && !string.IsNullOrEmpty(latestRelease.tag_name) && latestRelease.tag_name.Length > 1 && latestRelease.tag_name[0] == 'v')
{
LatestVersion = new Version(latestRelease.tag_name.Substring(1));
if (latestRelease.assets != null && latestRelease.assets.Count > 0)
{
string extension;
if (IsPortable)
{
extension = "portable.zip";
}
else
{
extension = ".exe";
}
foreach (GitHubAsset asset in latestRelease.assets)
{
if (asset != null && !string.IsNullOrEmpty(asset.name) && asset.name.EndsWith(extension, StringComparison.InvariantCultureIgnoreCase))
{
Filename = asset.name;
if (IsPortable)
{
DownloadURL = asset.browser_download_url;
}
else
{
DownloadURL = asset.url;
}
RefreshStatus();
return;
}
}
}
}
}
}
catch (Exception e)
{
DebugHelper.WriteException(e, "GitHub update check failed");
}
Status = UpdateStatus.UpdateCheckFailed;
}
private bool SaveInternal(string filePath)
{
string typeName = GetType().Name;
DebugHelper.WriteLine($"{typeName} save started: {filePath}");
bool isSuccess = false;
try
{
if (!string.IsNullOrEmpty(filePath))
{
lock (this)
{
Helpers.CreateDirectoryFromFilePath(filePath);
string tempFilePath = filePath + ".temp";
using (FileStream fileStream = new FileStream(tempFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, 4096, FileOptions.WriteThrough))
using (StreamWriter streamWriter = new StreamWriter(fileStream))
using (JsonTextWriter jsonWriter = new JsonTextWriter(streamWriter))
{
JsonSerializer serializer = new JsonSerializer();
if (SupportDPAPIEncryption)
{
serializer.ContractResolver = new DPAPIEncryptedStringPropertyResolver();
}
else
{
serializer.ContractResolver = new WritablePropertiesOnlyResolver();
}
serializer.Converters.Add(new StringEnumConverter());
serializer.DateTimeZoneHandling = DateTimeZoneHandling.Utc;
serializer.Formatting = Formatting.Indented;
serializer.Serialize(jsonWriter, this);
jsonWriter.Flush();
}
if (!JsonHelpers.QuickVerifyJsonFile(tempFilePath))
{
throw new Exception($"{typeName} file is corrupt: {tempFilePath}");
}
if (File.Exists(filePath))
{
string backupFilePath = null;
if (CreateBackup)
{
string fileName = Path.GetFileName(filePath);
backupFilePath = Path.Combine(BackupFolder, fileName);
Helpers.CreateDirectoryFromDirectoryPath(BackupFolder);
}
File.Replace(tempFilePath, filePath, backupFilePath);
}
else
{
File.Move(tempFilePath, filePath);
}
if (CreateWeeklyBackup && !string.IsNullOrEmpty(BackupFolder))
{
Helpers.BackupFileWeekly(filePath, BackupFolder);
}
isSuccess = true;
}
}
}
catch (Exception e)
{
DebugHelper.WriteException(e);
OnSettingsSaveFailed(e);
}
finally
{
string status = isSuccess ? "successful" : "failed";
DebugHelper.WriteLine($"{typeName} save {status}: {filePath}");
}
return(isSuccess);
}
