/// <summary>
/// Check for updates and returns the result.
/// </summary>
/// <param name="PatchVersionUrl">Url location of the version file</param>
public async Task <PatchVersion> CheckForUpdates(string PatchVersionUrl)
{
// Set SSL/TLS is correctly being set
ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
// Create web client to download the patch info
using (WebClient web = new WebClient())
{
// Download, read and convert JSON to class
PatchVersion patchVersion = JsonDeserializer <PatchVersion>(await web.DownloadStringTaskAsync(PatchVersionUrl));
patchVersion.IsUpdateAvailable = CurrentVersion < new Version(patchVersion.LastestVersion);
return(patchVersion);
}
}
/// <summary>
/// Initialize the pachting files to be downloaded and updated
/// </summary>
/// <param name="Patch">Patch to prepare</param>
/// <param name="SupportOldVersion">Check if your application supports versions that are not found on patch</param>
public async Task InitializeUpdate(PatchVersion Patch, bool SupportOldVersion = false)
{
// Set SSL/TLS is correctly being set
ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
// Create web client to check patch files
using (WebClient web = new WebClient())
{
// Patch to download
var patchRequiredUrl = Patch.PatchUrl;
// Avoid repeating files
PatchFiles = new Dictionary <string, PatchFile>();
// Collect all files that will be used for patching
Patches = new Dictionary <Version, Dictionary <string, PatchFile> >();
// Create downloading folder and hide it from user
if (!Directory.Exists(DownloadingPath))
{
DirectoryInfo dirInfo = Directory.CreateDirectory(DownloadingPath);
dirInfo.Attributes = FileAttributes.Directory | FileAttributes.Hidden;
}
// Start reading web patches
Version patchVersion = null;
do
{
// Download, read and convert JSON to class
var patchInfo = JsonDeserializer <PatchInfo>(await web.DownloadStringTaskAsync(patchRequiredUrl));
// If the version is the same as my current version, stop it
patchVersion = new Version(patchInfo.Version);
if (patchVersion == CurrentVersion)
{
break;
}
// Create version patch if doesn't exist
if (!Patches.TryGetValue(patchVersion, out Dictionary <string, PatchFile> patch))
{
patch = new Dictionary <string, PatchFile>();
Patches[patchVersion] = patch;
}
// Collects non repeated files
foreach (string file in patchInfo.Files)
{
if (!PatchFiles.ContainsKey(file))
{
// Add file to this patch
var patchFile = new PatchFile(file, patchInfo.Host + file, Path.Combine(DownloadingPath, PatchFiles.Count.ToString().PadLeft(8, '0')));
patch.Add(file, patchFile);
PatchFiles.Add(file, patchFile);
}
}
// Remove it if this patch doesn't have files
if (patch.Count == 0)
{
Patches.Remove(patchVersion);
}
// Collect files from patch dependencies
patchRequiredUrl = patchInfo.PatchRequiredUrl;
} while (!string.IsNullOrEmpty(patchRequiredUrl));
// Check if the update version is matching with app
if (!SupportOldVersion && patchVersion > CurrentVersion)
{
throw new ApplicationException("The version of your application is too old to be updated.");
}
// Check if there is cache to synchronize
LoadCache();
m_PatchFilesMax = PatchFiles.Count;
m_PatchFilesCount = 0;
}
}
