internal static byte[] CompressFiles(string rootDir, PackageHash hash)
{
rootDir = rootDir.TrimEnd(Path.DirectorySeparatorChar);
var lengthOfRootDir = rootDir.Length;
BinaryFormatter formatter = new BinaryFormatter();
var fileBag = new Dictionary <string, byte[]>();
foreach (var file in hash.Files)
{
var pathName = file.Substring(lengthOfRootDir).TrimStart(Path.DirectorySeparatorChar);
byte[] bytes = File.ReadAllBytes(file);
fileBag.Add(pathName, bytes);
}
byte[] compressedObjectBytes;
using (var msCompressed = new MemoryStream())
{
using (var msObj = new MemoryStream())
{
formatter.Serialize(msObj, fileBag);
msObj.Seek(0, SeekOrigin.Begin);
using (GZipStream gzs = new GZipStream(msCompressed, CompressionMode.Compress))
{
msObj.CopyTo(gzs);
}
}
compressedObjectBytes = msCompressed.ToArray();
}
return(compressedObjectBytes);
}
/// <summary>
/// Returns singleton of Packager with PackageHash created and set. Hashes current app domain's DLL, EXE and CONFIG files.
/// </summary>
/// <returns></returns>
internal static Packager Create()
{
if (null != _singleton)
{
return(_singleton);
}
lock (_syncRoot)
{
if (null != _singleton)
{
return(_singleton);
}
var rootDir = AppDomain.CurrentDomain.BaseDirectory;
var exeFiles = Directory.GetFiles(rootDir, "*.exe", SearchOption.AllDirectories);
var dllFiles = Directory.GetFiles(rootDir, "*.dll", SearchOption.AllDirectories);
var configFiles = Directory.GetFiles(rootDir, "*.config", SearchOption.AllDirectories);
var list = exeFiles.Concat(dllFiles).Concat(configFiles).Where(n => !Path.GetFileName(n).Contains(".vshost.")).ToList();
list.Sort();
//get hash codes for each file
var fileHashes = new ConcurrentDictionary <string, string>();
Parallel.ForEach(list, file =>
{
using (RIPEMD160 rip = RIPEMD160Managed.Create())
{
byte[] hashValue;
using (var fileStream = File.OpenRead(file))
{
fileStream.Position = 0;
hashValue = rip.ComputeHash(fileStream);
}
fileHashes.TryAdd(file, Convert.ToBase64String(hashValue));
}
});
var hash = new PackageHash()
{
Name = AppDomain.CurrentDomain.FriendlyName,
Files = fileHashes.Keys.ToArray(),
Hashes = fileHashes.Values.ToArray()
};
_singleton = new Packager(hash);
return(_singleton);
}
}
public void AddUpdatePackage(PackageHash hash, byte[] package)
{
Proxy.AddUpdatePackage(hash, package);
}
public bool HasPackage(PackageHash hash)
{
return(Proxy.HasPackage(hash));
}
private Packager(PackageHash hash)
{
this.Hash = hash;
}
