Downloader

Usage example for SegmentDownloader Core, a updated version from the tool created by guilhermelabigalini and maintained by golavr. Also uses hash to validate files.

Persisted List Extension

The extension was already implemented on the original project, but it was messed with the UI. I just copied the necessary files and made small changes to remove unused code.

When open the application, instantiate the PersistedList and save it on a private property. Then, just look for paused downloads and start it...

_persistedList = new PersistedListExtension();
if (DownloadManager.Instance.Downloads.Any())
    foreach (var downloader in DownloadManager.Instance.Downloads)
        downloader.Start();

Call the dispose() method to save all downloads to a XML file. This method can also be called to pause all downloads. The file is updated using a TimerCallback that saves the list every 120 seconds (you can change this time with the SaveListIntervalInSeconds constant.

File Validator

When the download is finished, the file is validated using a SHA256 Hashing Algorithm. You can obtaing the hash using the Get-FileHash function from Windows PowerShell. See the docs for details.

Call the static method Validate(path, hash) to check the file. Using the DownloadEnded event...

String hash = "...";
if (FileValidator.Validate(e.Downloader.LocalFile, hash))
    //file is valid
else
    //file is invalid