/// <summary>
/// Downloads update package and installs it
/// </summary>
/// <param name="updateInfo"></param>
public void DownloadUpdateAndInstall(UpdateInformationType updateInfo)
{
string updatePhisycalFile = GetUpdateLocalFileName(updateInfo.DownloadUrl);
if (File.Exists(updatePhisycalFile))
File.Delete(updatePhisycalFile);
GetDataFile(updateInfo.DownloadUrl, updatePhisycalFile);
Install(updatePhisycalFile);
}
/// <summary>
/// Check update package information for existing update
/// </summary>
/// <returns>Returns if package contains update data</returns>
public bool CanUpdate(out UpdateInformationType updateInfo)
{
byte[] bytes = GetDataBytes(_AutoUpdateInfoUrl);
updateInfo = GetUpdateInfoFromXmlBytes(bytes);
try
{
double current = Convert.ToDouble(_CurrentVersion);
double update = Convert.ToDouble(updateInfo.UpdateVersion);
return update > current;
}
catch
{
return (updateInfo.UpdateVersion.CompareTo(_CurrentVersion) > 0);
}
}
private UpdateInformationType GetUpdateInfoFromXmlBytes(byte[] xmlBytes)
{
UpdateInformationType result = new UpdateInformationType();
string docContent = Encoding.UTF8.GetString(xmlBytes);
XmlDocument doc = new XmlDocument();
try
{
doc.LoadXml(docContent);
XmlNode node;
XmlNode rootNode = doc.SelectSingleNode("root");
node = rootNode.SelectSingleNode("UpdateVersion");
result.UpdateVersion = node.InnerText;
node = rootNode.SelectSingleNode("DownloadUrl");
result.DownloadUrl = node.InnerText;
}
catch { }
return result;
}
