public void DownloadClientJar(GameVersion MC)
{
bool download = false;
long filesize;
string fileSHA;
string localFilePath = VersionDir + @"\" + MC.Id + @"\" + MC.Id + ".jar";
try
{
if (File.Exists(localFilePath))
{
// check filesize
filesize = new FileInfo(localFilePath).Length;
if (MC.Downloads.Client.Size != filesize)
{
File.Delete(localFilePath);
download = true;
}
// check SHA
fileSHA = dhelper.ComputeHashSHA(localFilePath);
if (!MC.Downloads.Client.Sha1.Equals(fileSHA))
{
File.Delete(localFilePath);
download = true;
}
}
else
{
download = true;
}
// download jar
if (download == true)
{
dhelper.DownloadFileTo(MC.Downloads.Client.Url, localFilePath);
}
// post download check
// check filesize
filesize = new FileInfo(localFilePath).Length;
if (MC.Downloads.Client.Size != filesize)
{
throw new Exception("Error downloading file: " + MC.Id + ".jar (filesize mismatch)");
}
// check SHA
fileSHA = dhelper.ComputeHashSHA(localFilePath);
if (!MC.Downloads.Client.Sha1.Equals(fileSHA))
{
throw new Exception("Error downloading file: " + MC.Id + ".jar (SHA1 mismatch)");
}
}
catch (Exception ex)
{
throw ex;
}
}
