public PreferenceFilesDownloader(string SaveDirectory, List <PreferenceFile> PreferenceFiles, ref PreferenceTrackingHandler PreferenceTracker)
{
this.SaveDirectory = SaveDirectory;
this.PreferenceFiles = PreferenceFiles;
this.PreferenceTracker = PreferenceTracker;
TotalBytes = GetTotalBytes();
}
/// <summary>
/// Files preference manager allows you to check the integrity of files, download missing or injured ones, as well as delete unnecessary ones and track all this
/// </summary>
/// <param name="SaveDirectory">Root path for downloading and checking files</param>
/// <param name="AddressToFiles">URL address to json file</param>
/// <param name="ValidityMode">File check mode</param>
/// <param name="PreferenceTracker"></param>
public FilesPreferenceManager(string SaveDirectory, Uri AddressToFiles, FileValidityMode ValidityMode, PreferenceTrackingHandler PreferenceTracker)
{
this.SaveDirectory = SaveDirectory;
this.AddressToFiles = AddressToFiles;
this.ValidityMode = ValidityMode;
this.PreferenceTracker = PreferenceTracker;
Directory.CreateDirectory(SaveDirectory);
}
static void Main(string[] args)
{
// The path to the folder for downloading and checking files.
string SavePath = @"C:\Sample folder";
// Link to json file, it is generated using PreferenceGenerator.php
Uri AddressToJson = new Uri("http://test1.ru/PreferenceFiles.json");
// There are two modes for checking files. (Hashing/Sizing)
// The first is more accurate, but the second is much faster.
FileValidityMode ValidityMode = FileValidityMode.Hashing; //or FileValidityMode.Sizing;
PreferenceTrackingHandler PreferenceTracker = new PreferenceTrackingHandler();
PreferenceTracker.DownloadEngineStatusChanged += (s, e) => // When the download state changes.
{
Console.WriteLine(string.Format($"Status: {e.DownloadStatus}"));
};
PreferenceTracker.DownloadEngineFileChanged += (s, e) => // When the next file starts downloading.
{
Console.WriteLine(string.Format($"Download now: {Path.Combine(e.Directory, e.Name)}"));
};
PreferenceTracker.DownloadEngineProgressChanged += (s, e) => // When new bytes are received.
{
Console.WriteLine(string.Format($"Downloaded: {e.DownloadedSize} / {e.Size} | Percentage: {e.Percentage}"));
};
// Declaring the main instance of the manager class and initializing the download engine.
FilesPreferenceManager PreferenceManager = new FilesPreferenceManager(SavePath, AddressToJson, ValidityMode, PreferenceTracker);
PreferenceManager.InitializeDownloadEngine();
Console.ReadKey();
}
/// <summary>
/// This method allows you to check the integrity of the files, the list of which it received
/// </summary>
/// <param name="SaveDirectory">File check root path</param>
/// <param name="PreferenceFiles">List of preference files</param>
/// <param name="ValidityMode">File check mode</param>
/// <returns>List of files edited as a result of the method</returns>
public List <PreferenceFile> ValidateFiles(string SaveDirectory, List <PreferenceFile> PreferenceFiles, FileValidityMode ValidityMode, ref PreferenceTrackingHandler PreferenceTracker)
{
///Tracking change to download status
PreferenceTracker.DownloadEngineStatusArgs.DownloadStatus = DownloadStatusFlags.Validating;
PreferenceTracker.DownloadEngineStatusChange(PreferenceTracker.DownloadEngineStatusArgs);
List <PreferenceFile> PreferenceInjuredFiles = new List <PreferenceFile>();
foreach (PreferenceFile ValidityFile in PreferenceFiles)
{
if (!string.IsNullOrEmpty(ValidityFile.Directory))
{
Directory.CreateDirectory(Path.Combine(SaveDirectory, ValidityFile.Directory));
}
if (!File.Exists(Path.Combine(SaveDirectory, ValidityFile.Directory, ValidityFile.Name)))
{
PreferenceInjuredFiles.Add(ValidityFile);
continue;
}
if (ValidityMode == FileValidityMode.Sizing)
{
if (new FileInfo(Path.Combine(SaveDirectory, ValidityFile.Directory, ValidityFile.Name)).Length != ValidityFile.Size)
{
PreferenceInjuredFiles.Add(ValidityFile);
}
}
else if (ValidityMode == FileValidityMode.Hashing)
{
MD5 Crypto = MD5.Create();
FileStream Stream = File.OpenRead(Path.Combine(SaveDirectory, ValidityFile.Directory, ValidityFile.Name));
byte[] Hashcode = Crypto.ComputeHash(Stream);
string Hash = (BitConverter.ToString(Hashcode).Replace("-", string.Empty)).ToLower();
if (Hash != ValidityFile.Hash)
{
PreferenceInjuredFiles.Add(ValidityFile);
}
}
}
return(PreferenceInjuredFiles);
}
