/// <summary>
/// This method checks if an update is required. During this process the appcast
/// will be downloaded and checked against the reference assembly. Ensure that
/// the calling process has access to the internet and read access to the
/// reference assembly. This method is also called from the background loops.
/// </summary>
/// <param name="config">the configuration</param>
/// <param name="latestVersion">returns the latest version</param>
/// <returns><c>true</c> if an update is required</returns>
public bool IsUpdateRequired(KryptonSparkleConfiguration config, out KryptonSparkleAppCastItem latestVersion)
{
// report
ReportDiagnosticMessage("Downloading and checking appcast");
// init the appcast
KryptonSparkleAppCast cast = new KryptonSparkleAppCast(_AppCastUrl, config);
// check if any updates are available
try
{
latestVersion = cast.GetLatestVersion();
}
catch (Exception e)
{
// show the exeception message
ReportDiagnosticMessage("Error during app cast download: " + e.Message);
// just null the version info
latestVersion = null;
}
if (latestVersion == null)
{
ReportDiagnosticMessage("No version information in app cast found");
return(false);
}
ReportDiagnosticMessage("Lastest version on the server is " + latestVersion.Version);
// set the last check time
ReportDiagnosticMessage("Touch the last check timestamp");
config.TouchCheckTime();
// check if the available update has to be skipped
if (latestVersion.Version.Equals(config.SkipThisVersion))
{
ReportDiagnosticMessage("Latest update has to be skipped (user decided to skip version " + config.SkipThisVersion + ")");
return(false);
}
// check if the version will be the same then the installed version
Version v1 = new Version(config.InstalledVersion);
Version v2 = new Version(latestVersion.Version);
if (v2 <= v1)
{
ReportDiagnosticMessage("Installed version is valid, no update needed (" + config.InstalledVersion + ")");
return(false);
}
// ok we need an update
return(true);
}
/// <summary>
/// Called when the user responds to the "skip, later, install" question.
/// </summary>
/// <param name="sender">not used.</param>
/// <param name="e">not used.</param>
void OnUserWindowUserResponded(object sender, EventArgs e)
{
if (this.UserWindow.Result == DialogResult.No)
{
// skip this version
KryptonSparkleConfiguration config = GetApplicationConfig();
config.SetVersionToSkip(this.UserWindow.CurrentItem.Version);
}
else if (this.UserWindow.Result == DialogResult.Yes)
{
// download the binaries
InitDownloadAndInstallProcess(this.UserWindow.CurrentItem);
}
}
/// <summary>
/// Does a one-off check for updates
/// </summary>
/// <param name="isUserInterfaceShown"><c>true</c> if the user interface is to be shown.</param>
public bool CheckForUpdates(bool isUserInterfaceShown)
{
KryptonSparkleConfiguration config = GetApplicationConfig();
// update profile information is needed
UpdateSystemProfileInformation(config);
// check if update is required
KryptonSparkleAppCastItem latestVersion;
if (IsUpdateRequired(config, out latestVersion))
{
// show the update window
ReportDiagnosticMessage("Update needed from version " + config.InstalledVersion + " to version " + latestVersion.Version);
// send notification if needed
UpdateDetectedEventArgs ev = new UpdateDetectedEventArgs {
NextAction = NextUpdateAction.ShowStandardUserInterface, ApplicationConfig = config, LatestVersion = latestVersion
};
if (UpdateDetected != null)
{
UpdateDetected(this, ev);
}
// check results
if (isUserInterfaceShown)
{
switch (ev.NextAction)
{
case NextUpdateAction.PerformUpdateUnattended:
EnableSilentMode = true;
Update(latestVersion);
break;
case NextUpdateAction.ProhibitUpdate:
break;
case NextUpdateAction.ShowStandardUserInterface:
default:
Update(latestVersion);
break;
}
}
return(true);
}
return(false);
}
/// <summary>
/// This method updates the profile information which can be sended to the server if enabled
/// </summary>
/// <param name="config">the configuration</param>
public void UpdateSystemProfileInformation(KryptonSparkleConfiguration config)
{
// check if profile data is enabled
if (!EnableSystemProfiling)
{
return;
}
// check if we need an update
if (DateTime.Now - config.LastProfileUpdate < new TimeSpan(7, 0, 0, 0))
{
return;
}
// touch the profile update time
config.TouchProfileTime();
// start the profile thread
Thread t = new Thread(ProfileDataThreadStart);
t.Start(config);
}
/// <summary>
/// Profile data thread
/// </summary>
/// <param name="obj">the configuration object</param>
private void ProfileDataThreadStart(object obj)
{
try
{
if (SystemProfileUrl != null)
{
// get the config
KryptonSparkleConfiguration config = obj as KryptonSparkleConfiguration;
// collect data
KryptonSparkleDeviceInventory inv = new KryptonSparkleDeviceInventory(config);
inv.CollectInventory();
// build url
String requestUrl = inv.BuildRequestUrl(SystemProfileUrl + "?");
// perform the webrequest
HttpWebRequest request = WebRequest.Create(requestUrl) as HttpWebRequest;
if (request != null)
{
request.UseDefaultCredentials = true;
request.Proxy.Credentials = CredentialCache.DefaultNetworkCredentials;
using (WebResponse response = request.GetResponse())
{
// close the response
response.Close();
}
}
}
}
catch (Exception ex)
{
// No exception during data send
ReportDiagnosticMessage(ex.Message);
}
}
public KryptonSparkleDeviceInventory(KryptonSparkleConfiguration config)
{
_config = config;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="castUrl">the URL of the appcast file</param>
/// <param name="config">the current configuration</param>
public KryptonSparkleAppCast(string castUrl, KryptonSparkleConfiguration config)
{
_config = config;
_castUrl = castUrl;
}
/// <summary>
/// This method will be executed as worker thread
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void OnWorkerDoWork(object sender, DoWorkEventArgs e)
{
// store the did run once feature
bool goIntoLoop = true;
bool checkTSP = true;
bool doInitialCheck = _DoInitialCheck;
bool isInitialCheck = true;
// start our lifecycles
do
{
// set state
Boolean bUpdateRequired = false;
// notify
if (CheckLoopStarted != null)
{
CheckLoopStarted(this);
}
// report status
if (doInitialCheck == false)
{
ReportDiagnosticMessage("Initial check prohibited, going to wait");
doInitialCheck = true;
goto WaitSection;
}
// report status
ReportDiagnosticMessage("Starting update loop...");
// read the config
ReportDiagnosticMessage("Reading config...");
KryptonSparkleConfiguration config = GetApplicationConfig();
// calc CheckTasp
Boolean checkTSPInternal = checkTSP;
if (isInitialCheck && checkTSPInternal)
{
checkTSPInternal = !_ForceInitialCheck;
}
// check if it's ok the recheck to software state
if (checkTSPInternal)
{
TimeSpan csp = DateTime.Now - config.LastCheckTime;
if (csp < _CheckFrequency)
{
ReportDiagnosticMessage(String.Format("Update check performed within the last {0} minutes!", _CheckFrequency.TotalMinutes));
goto WaitSection;
}
}
else
{
checkTSP = true;
}
// when sparkle will be deactivated wait an other cycle
if (config.CheckForUpdate == false)
{
ReportDiagnosticMessage("Check for updates disabled");
goto WaitSection;
}
// update the runonce feature
goIntoLoop = !config.DidRunOnce;
// update profile information is needed
UpdateSystemProfileInformation(config);
// check if update is required
KryptonSparkleAppCastItem latestVersion;
bUpdateRequired = IsUpdateRequired(config, out latestVersion);
if (!bUpdateRequired)
{
goto WaitSection;
}
// show the update window
ReportDiagnosticMessage("Update needed from version " + config.InstalledVersion + " to version " + latestVersion.Version);
// send notification if needed
UpdateDetectedEventArgs ev = new UpdateDetectedEventArgs {
NextAction = NextUpdateAction.ShowStandardUserInterface, ApplicationConfig = config, LatestVersion = latestVersion
};
if (UpdateDetected != null)
{
UpdateDetected(this, ev);
}
// check results
switch (ev.NextAction)
{
case NextUpdateAction.PerformUpdateUnattended:
{
ReportDiagnosticMessage("Unattended update whished from consumer");
EnableSilentMode = true;
_worker.ReportProgress(1, latestVersion);
break;
}
case NextUpdateAction.ProhibitUpdate:
{
ReportDiagnosticMessage("Update prohibited from consumer");
break;
}
case NextUpdateAction.ShowStandardUserInterface:
default:
{
ReportDiagnosticMessage("Standard UI update whished from consumer");
_worker.ReportProgress(1, latestVersion);
break;
}
}
WaitSection:
// reset initialcheck
isInitialCheck = false;
// notify
if (CheckLoopFinished != null)
{
CheckLoopFinished(this, bUpdateRequired);
}
// report wait statement
ReportDiagnosticMessage(String.Format("Sleeping for an other {0} minutes, exit event or force update check event", _CheckFrequency.TotalMinutes));
// wait for
if (!goIntoLoop)
{
break;
}
// build the event array
WaitHandle[] handles = new WaitHandle[1];
handles[0] = _exitHandle;
// wait for any
int i = WaitHandle.WaitAny(handles, _CheckFrequency);
if (WaitHandle.WaitTimeout == i)
{
ReportDiagnosticMessage(String.Format("{0} minutes are over", _CheckFrequency.TotalMinutes));
continue;
}
// check the exit hadnle
if (i == 0)
{
ReportDiagnosticMessage("Got exit signal");
break;
}
// check an other check needed
if (i == 1)
{
ReportDiagnosticMessage("Got force update check signal");
checkTSP = false;
}
} while (goIntoLoop);
// reset the islooping handle
_loopingHandle.Reset();
}
