public List <string> GetRemovedFiles(UpdateFile previousVersion)
{
return
(previousVersion.Files.Where(f => !Files.Exists(x => x.SystemPath.Equals(f.SystemPath, StringComparison.CurrentCultureIgnoreCase)))
.Select(f => f.SystemPath)
.ToList());
}
public List <UpdateFileInfo> GetChangedFiles(UpdateFile previousVersion)
{
var changedFiles = new List <UpdateFileInfo>();
foreach (var updateFileInfo in Files)
{
var file = previousVersion.Files.Find(uf => uf.SystemPath == updateFileInfo.SystemPath);
if (file != null && file.Md5Hash == updateFileInfo.Md5Hash)
{
continue;
}
changedFiles.Add(updateFileInfo);
}
return(changedFiles);
}
private new void Update()
{
try
{
Status("Load update info...");
// get update index
var req = WebRequest.Create("http://update.utopiarealms.com/index.update");
using (var response = req.GetResponse())
using (var stream = response.GetResponseStream())
using (var zs = new GZipStream(stream, CompressionMode.Decompress))
{
var reader = new BinaryReader(zs);
_updateFile = new UpdateFile();
_updateFile.Load(reader);
}
var indexPath = Path.Combine(_basePath, "update.index");
UpdateFile previousUpdate = null;
if (File.Exists(indexPath))
{
using (var fs = File.OpenRead(indexPath))
using (var zs = new GZipStream(fs, CompressionMode.Decompress))
{
var reader = new BinaryReader(zs);
previousUpdate = new UpdateFile();
previousUpdate.Load(reader);
}
}
Status("Check files to update...");
var files = new List <UpdateFileInfo>();
foreach (var file in _updateFile.Files)
{
var filePath = Path.Combine(_basePath, file.SystemPath);
if (File.Exists(filePath))
{
using (var fs = File.OpenRead(filePath))
{
var hash = Md5Hash.Calculate(fs);
if (hash.ToString() == file.Md5Hash && fs.Length == file.Length)
{
continue;
}
}
}
files.Add(file);
}
float index = 0f;
foreach (var file in files)
{
Status("Updating " + file.SystemPath, index / files.Count);
try
{
var filePath = Path.Combine(_basePath, file.SystemPath);
if (!Directory.Exists(Path.GetDirectoryName(filePath)))
{
Directory.CreateDirectory(Path.GetDirectoryName(filePath));
}
var fileReq = WebRequest.Create(file.DownloadUri);
using (var response = fileReq.GetResponse())
using (var fs = File.OpenWrite(filePath))
{
fs.SetLength(0);
using (var stream = response.GetResponseStream())
{
if (file.Compressed)
{
using (var zip = new GZipStream(stream, CompressionMode.Decompress))
{
zip.CopyTo(fs);
}
}
else
{
stream.CopyTo(fs);
}
}
}
}
catch (Exception x)
{
MessageBox.Show(x.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
Application.Exit();
}
index++;
}
// delete removed files
if (previousUpdate != null)
{
foreach (var removedFile in _updateFile.GetRemovedFiles(previousUpdate))
{
var fullPath = Path.Combine(_basePath, removedFile);
if (File.Exists(fullPath))
{
File.Delete(fullPath);
}
}
}
if (File.Exists(indexPath))
{
File.Delete(indexPath);
}
// save index for future update
using (var fs = File.OpenWrite(indexPath))
using (var zs = new GZipStream(fs, CompressionMode.Compress))
{
var writer = new BinaryWriter(zs);
_updateFile.Save(writer);
}
// save current token
File.WriteAllText(Path.Combine(_basePath, "update.token"), _updateFile.UpdateToken);
StartGame();
}
catch (Exception x)
{
MessageBox.Show(string.Format("Exception occured: {0}\nPlease post this information to the forum at http://utopiarealms.com", x.Message), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
