public Update CheckForUpdates(IWebClientWrapper client)
{
string url = BrandingControl.getString("BRANDING_updaterURL");
if (String.IsNullOrEmpty(url))
{
url = "https://pvupdates.vmd.citrix.com/updates.v2.tsv";
}
string identify = (string)getreg.GetReg("HKEY_LOCAL_MACHINE\\Software\\Citrix\\XenTools\\AutoUpdate", "Identify", "NO");
if (identify.Equals("YES"))
{
url += "?id=" + uuid.Value.Substring(4);
}
if (update_url.Exists)
{
url = update_url.Value;
}
url = (string)getreg.GetReg("HKEY_LOCAL_MACHINE\\SOFTWARE\\Citrix\\XenTools", "update_url", url);
if (String.IsNullOrEmpty(url))
{
session.Log("Update URL is Null or Empty");
throw new ArgumentNullException("URL is empty");
}
session.Log("Checking URL: " + url + " for updates after: " + version.ToString());
string contents = null;
try
{
string userAgent = (string)getreg.GetReg("HKEY_LOCAL_MACHINE\\SOFTWARE\\Citrix\\XenTools\\AutoUpdate", "UserAgent", BrandingControl.getString("BRANDING_userAgent"));
session.Log("This is my user agent : " + userAgent);
client.AddHeader("User-Agent", userAgent);
contents = client.DownloadString(url);
}
catch (Exception e)
{
session.Log("Download failed " + e.Message);
throw;
}
if (String.IsNullOrEmpty(contents))
{
return(null);
}
string arch = (Win32Impl.Is64BitOS() && (!Win32Impl.IsWOW64())) ? "x64" : "x86";
List <Update> updates = new List <Update>();
foreach (string line in contents.Split(new char[] { '\n' }))
{
if (String.IsNullOrEmpty(line))
{
continue;
}
try
{
Update update = new Update(line);
session.Log("Update Entry " + update.ToString());
if (update.Arch != arch)
{
continue;
}
if (update.Version.CompareTo(version) <= 0)
{
continue;
}
updates.Add(update);
}
catch (Exception e)
{
session.Log("Exception: " + e.Message);
}
}
updates.Reverse();
if (updates.Count > 0)
{
return(updates[0]);
}
session.Log("No updates found");
return(null);
}