/// <summary>
/// Creates a text file containing the hash string of the pack file.
/// </summary>
/// <returns></returns>
private async Task <bool> CreateHashFile()
{
if (File.Exists(Paths.GKPackFileFDir + Paths.GKPackHashName))
{
File.Delete(Paths.GKPackFileFDir + Paths.GKPackHashName);
}
object Hash = await Task.Run(() => { return(SecurityTools.GetMD5OfFile(Paths.GKPackFileFullPath)); });
using (StreamWriter sw = File.CreateText(Paths.GKPackFileFDir + Paths.GKPackHashName))
{
sw.Write(Hash);
}
return(true);
}
/// <summary>
/// Verifies directory structure, checks if pack file is present, then compares local and remote hashes of the pack file.
///
/// Returns False if directory or file is missing, or if the hashes mismatch.
/// </summary>
/// <returns></returns>
public async Task <bool> VerifyPackFile()
{
try
{
if (!Directory.Exists(Paths.GKPackFileFDir))
{
return(false);
}
if (!Directory.Exists(Paths.GKExtractDir))
{
return(false);
}
if (!File.Exists(Paths.GKPackFileFullPath))
{
return(false);
}
else
{
string localHash = await Task.Run(() => { return(SecurityTools.GetMD5OfFile(Paths.GKPackFileFullPath)); });
string remoteHash = await Task.Run(() => { return(GetRemoteHash()); });
if (localHash == remoteHash)
{
return(true);
}
else
{
return(false);
}
}
}
catch (DirectoryNotFoundException dnfe)
{
Logging.Exception(dnfe);
return(false);
}
catch (FileNotFoundException fnfe)
{
Logging.Exception(fnfe);
return(false);
}
catch (Exception ex)
{
ErrorHandling.ErrHandle(ex, System.Reflection.MethodBase.GetCurrentMethod());
return(false);
}
}