/// <summary>
/// Queries the latest version of a particular product
/// </summary>
/// <param name="updatesPath">The path to the updates</param>
/// <param name="productName">The name of the product to update</param>
/// <param name="currentVersion">The current version of the product that is checking for updates</param>
/// <param name="productId">The id of the product that is checking for updates</param>
/// <returns></returns>
public static XmlDocument QueryLatestVersionEx(string updatesPath, string productName, string currentVersion, string productId)
{
/*
* we really don't need all the information, but it would be nice to log who is trying to update
* */
try
{
// log information about this event to the system's event log
// Debug.WriteLine(string.Format("The product '{0}' version '{1}' with Id '{2}' checked for updates at {3}.", productName, currentVersion, productId, DateTime.Now.ToString()));
// there must be a path to the updates folder
if (updatesPath == null || updatesPath == string.Empty)
return null;
// append the product name to the updates path
string path = Path.Combine(updatesPath, productName);
// if the directory doesn't exist, bail with null
if (!Directory.Exists(path))
return null;
// create a search for manifest files
Search search = new Search("Manifest Files", path, "*.Manifest", false, false);
// run the search
FileInfo[] files = search.GetFiles();
// create versioned files from the results
VersionedFile[] versionedFiles = VersionedFile.CreateVersionedFiles(string.Format("{0}-", productName), files);
// sort them
versionedFiles = VersionedFile.Sort(versionedFiles);
// grab the latest version
VersionedFile latestVersion = VersionedFile.GetLatestVersion(versionedFiles);
// assuming there is a version available
if (latestVersion != null)
{
// create a new xml document to hold the response
XmlDocument doc = new XmlDocument();
// load the document with the xml
doc.Load(latestVersion.File.FullName);
// return the doc, which will return the document element,
// which is the pure xml inside the soap headers of the web service response
// skipping anymore encoding issues.
return doc;
}
}
catch(Exception ex)
{
Trace.WriteLine(ex);
}
return null;
}
/// <summary>
/// Deletes any old log files that occur outside of the max log files setting
/// </summary>
private void DeleteOldLogFiles()
{
/*
* Log File Naming Convention
*
* string.Format("Log{0}.txt", number);
*
* */
int maxFiles = DefaultMaxLogFiles;
string pattern = DefaultLogFileSearchingPattern;
try
{
// create a search for files that fit the log file naming scheme
Search search = new Search("Log Files", _logsDataPath, pattern, false, true);
// search for the files
FileInfo[] files = search.GetFiles();
foreach(FileInfo file in files)
{
try
{
// break the file name down into just the number of the log file
string name = file.Name;
name = name.Replace("Log_", null);
name = name.Replace(file.Extension, null);
// try and figure out the number of the log file
int number = int.Parse(name);
// try and delete any file that is a log file backup greater that the max number of log files
if (number > maxFiles)
this.FileDelete(file.FullName);
}
catch(FormatException)
{
continue;
}
catch(Exception ex)
{
Debug.WriteLine(ex);
}
}
}
catch(Exception ex)
{
Debug.WriteLine(ex);
}
}