/// <summary>
/// Checks if we have an updated version and returns update info
/// </summary>
/// <returns>Update info</returns>
public static async Task <UpdateInfo> IsUpdateAvailable()
{
try
{
//clean update folder on backgraound, dont bother with result - we are ready for collisions
var t1 = CleanTemporaryUpdateFolderAsync();
var httpFilter = new Windows.Web.Http.Filters.HttpBaseProtocolFilter();
httpFilter.CacheControl.ReadBehavior =
Windows.Web.Http.Filters.HttpCacheReadBehavior.MostRecent;
//dwonload version info
using (var client = new HttpClient(httpFilter))
{
using (var response = await client.GetAsync(new Uri(VersionFileUrl), HttpCompletionOption.ResponseContentRead))
{
string json = await response.Content.ReadAsStringAsync();
if (!VersionInfo.SetInstance(json))
{
return(new UpdateInfo(UpdateStatus.NoInternet));
}
}
}
// Check if version is newer
var currentVersion = Package.Current.Id.Version;
var repoVersion = GetVersionFromPattern(@"(\d*)\.(\d*)\.(\d*)", VersionInfo.Instance.latest_release.version);
var minVersion = GetVersionFromPattern(@"(\d*)\.(\d*)\.(\d*)", VersionInfo.Instance.minimum_version);
//compare major & minor & build (ignore revision)
if (IsVersionGreater(currentVersion, repoVersion))
{
UpdateStatus updateStatus = UpdateStatus.UpdateAvailable;
//patch architecture
VersionInfo.Instance.latest_release.setup_file = VersionInfo.Instance.latest_release.setup_file.Replace("{arch}", Package.Current.Id.Architecture.ToString());
if (IsVersionGreater(currentVersion, minVersion))
{
updateStatus = UpdateStatus.UpdateForced;
}
return(new UpdateInfo(updateStatus, repoVersion.Major + "." + repoVersion.Minor + "." + repoVersion.Build,
VersionInfo.Instance.latest_release.setup_file, VersionInfo.Instance.latest_release.changes));
}
else if (IsVersionGreater(repoVersion, minVersion))
{
return(new UpdateInfo(UpdateStatus.NextVersionNotReady));
}
return(new UpdateInfo(UpdateStatus.NoUpdate));
}
catch (Exception)
{
return(new UpdateInfo(UpdateStatus.NoInternet));
}
}
public static async Task <String> Download(String src)
{
filter = new Windows.Web.Http.Filters.HttpBaseProtocolFilter();
httpClient = new HttpClient();
cts = new CancellationTokenSource();
isFilterUsed = false;
Uri resourceUri;
if (!Uri.TryCreate(src.Trim(), UriKind.Absolute, out resourceUri))
{
return(null);
}
filter.CacheControl.ReadBehavior = HttpCacheReadBehavior.Default;
filter.CacheControl.WriteBehavior = HttpCacheWriteBehavior.Default;
// ---------------------------------------------------------------------------
// WARNING: Only test applications should ignore SSL errors.
// In real applications, ignoring server certificate errors can lead to MITM
// attacks (while the connection is secure, the server is not authenticated).
//
// The SetupServer script included with this sample creates a server certificate that is self-signed
// and issued to fabrikam.com, and hence we need to ignore these errors here.
// ---------------------------------------------------------------------------
//filter.IgnorableServerCertificateErrors.Add(ChainValidationResult.Untrusted);
//filter.IgnorableServerCertificateErrors.Add(ChainValidationResult.InvalidName);
HttpResponseMessage response = await httpClient.GetAsync(resourceUri);
String output = await response.Content.ReadAsStringAsync();
System.Diagnostics.Debug.WriteLine("!" + output + "!");
isFilterUsed = true;
return(output);
}
