/// <summary>
/// 压缩
/// </summary>
/// <param name="bytes">需要压缩的字节流</param>
/// <returns>压缩后的结果</returns>
public byte[] Compress(byte[] bytes)
{
using (var ms = new MemoryStream())
{
var lzma = new LZipStream(ms, CompressionMode.Compress, true);
lzma.Write(bytes, 0, bytes.Length);
lzma.Close();
return(ms.ToArray());
}
}
public void CompressFile(string source, string destination)
{
var inFs = new FileStream(source, FileMode.Open, FileAccess.Read);
var outFs = new FileStream(destination, FileMode.CreateNew, FileAccess.Write);
Stream zStream = new LZipStream(outFs, CompressionMode.Compress);
byte[] buffer = new byte[BUFFER_SIZE];
SetProgressBounds?.Invoke(this, new ProgressBoundsEventArgs
{
Minimum = 0,
Maximum = inFs.Length
});
while (inFs.Position + BUFFER_SIZE <= inFs.Length)
{
SetProgress?.Invoke(this, new ProgressEventArgs
{
Value = inFs.Position
});
inFs.Read(buffer, 0, buffer.Length);
zStream.Write(buffer, 0, buffer.Length);
}
buffer = new byte[inFs.Length - inFs.Position];
SetProgressBounds?.Invoke(this, new ProgressBoundsEventArgs
{
Minimum = 0,
Maximum = inFs.Length
});
inFs.Read(buffer, 0, buffer.Length);
zStream.Write(buffer, 0, buffer.Length);
inFs.Close();
zStream.Close();
outFs.Dispose();
}
public static void CompressFiles()
{
try
{
if (string.IsNullOrWhiteSpace(Context.DbInfo.Developer))
{
Failed?.Invoke("Developer cannot be empty");
return;
}
if (string.IsNullOrWhiteSpace(Context.DbInfo.Product))
{
Failed?.Invoke("Product cannot be empty");
return;
}
if (string.IsNullOrWhiteSpace(Context.DbInfo.Version))
{
Failed?.Invoke("Version cannot be empty");
return;
}
string destinationFolder = "";
destinationFolder = Path.Combine(destinationFolder, Context.DbInfo.Developer);
destinationFolder = Path.Combine(destinationFolder, Context.DbInfo.Product);
destinationFolder = Path.Combine(destinationFolder, Context.DbInfo.Version);
if (!string.IsNullOrWhiteSpace(Context.DbInfo.Languages))
{
destinationFolder = Path.Combine(destinationFolder, Context.DbInfo.Languages);
}
if (!string.IsNullOrWhiteSpace(Context.DbInfo.Architecture))
{
destinationFolder = Path.Combine(destinationFolder, Context.DbInfo.Architecture);
}
if (Context.DbInfo.Oem)
{
destinationFolder = Path.Combine(destinationFolder, "oem");
}
if (!string.IsNullOrWhiteSpace(Context.DbInfo.Machine))
{
destinationFolder = Path.Combine(destinationFolder, "for " + Context.DbInfo.Machine);
}
string destinationFile = "";
if (!string.IsNullOrWhiteSpace(Context.DbInfo.Format))
{
destinationFile += "[" + Context.DbInfo.Format + "]";
}
if (Context.DbInfo.Files)
{
if (destinationFile != "")
{
destinationFile += "_";
}
destinationFile += "files";
}
if (Context.DbInfo.Netinstall)
{
if (destinationFile != "")
{
destinationFile += "_";
}
destinationFile += "netinstall";
}
if (Context.DbInfo.Source)
{
if (destinationFile != "")
{
destinationFile += "_";
}
destinationFile += "source";
}
if (Context.DbInfo.Update)
{
if (destinationFile != "")
{
destinationFile += "_";
}
destinationFile += "update";
}
if (Context.DbInfo.Upgrade)
{
if (destinationFile != "")
{
destinationFile += "_";
}
destinationFile += "upgrade";
}
if (!string.IsNullOrWhiteSpace(Context.DbInfo.Description))
{
if (destinationFile != "")
{
destinationFile += "_";
}
destinationFile += Context.DbInfo.Description;
}
else if (destinationFile == "")
{
destinationFile = "archive";
}
string destination = Path.Combine(destinationFolder, destinationFile) + ".zip";
Md5Context md5 = new Md5Context();
md5.Init();
byte[] tmp;
string mdid = md5.Data(Encoding.UTF8.GetBytes(destination), out tmp);
Console.WriteLine("MDID: {0}", mdid);
if (dbCore.DbOps.ExistsOs(mdid))
{
if (File.Exists(destination))
{
Failed?.Invoke("OS already exists.");
return;
}
Failed?.Invoke("OS already exists in the database but not in the repository, check for inconsistencies.");
return;
}
if (File.Exists(destination))
{
Failed?.Invoke("OS already exists in the repository but not in the database, check for inconsistencies.");
return;
}
Context.DbInfo.Mdid = mdid;
string filesPath;
if (!string.IsNullOrEmpty(Context.TmpFolder) && Directory.Exists(Context.TmpFolder))
{
filesPath = Context.TmpFolder;
}
else
{
filesPath = Context.Path;
}
string extension = null;
switch (Settings.Current.CompressionAlgorithm)
{
case AlgoEnum.GZip:
extension = ".gz";
break;
case AlgoEnum.BZip2:
extension = ".bz2";
break;
case AlgoEnum.LZMA:
extension = ".lzma";
break;
case AlgoEnum.LZip:
extension = ".lz";
break;
}
long totalSize = 0, currentSize = 0;
foreach (KeyValuePair <string, DbOsFile> file in Context.Hashes)
{
totalSize += file.Value.Length;
}
#if DEBUG
stopwatch.Restart();
#endif
foreach (KeyValuePair <string, DbOsFile> file in Context.Hashes)
{
UpdateProgress?.Invoke("Compressing...", file.Value.Path, currentSize, totalSize);
destinationFolder = Path.Combine(Settings.Current.RepositoryPath, file.Value.Sha256[0].ToString(),
file.Value.Sha256[1].ToString(), file.Value.Sha256[2].ToString(),
file.Value.Sha256[3].ToString(), file.Value.Sha256[4].ToString());
Directory.CreateDirectory(destinationFolder);
destinationFile = Path.Combine(destinationFolder, file.Value.Sha256 + extension);
if (!File.Exists(destinationFile))
{
FileStream inFs = new FileStream(Path.Combine(filesPath, file.Value.Path), FileMode.Open,
FileAccess.Read);
FileStream outFs = new FileStream(destinationFile, FileMode.CreateNew, FileAccess.Write);
Stream zStream = null;
switch (Settings.Current.CompressionAlgorithm)
{
case AlgoEnum.GZip:
zStream = new GZipStream(outFs, CompressionMode.Compress,
CompressionLevel.BestCompression);
break;
case AlgoEnum.BZip2:
zStream = new BZip2Stream(outFs, CompressionMode.Compress);
break;
case AlgoEnum.LZMA:
zStream = new LzmaStream(new LzmaEncoderProperties(), false, outFs);
outFs.Write(((LzmaStream)zStream).Properties, 0,
((LzmaStream)zStream).Properties.Length);
outFs.Write(BitConverter.GetBytes(inFs.Length), 0, 8);
break;
case AlgoEnum.LZip:
zStream = new LZipStream(outFs, CompressionMode.Compress);
break;
}
byte[] buffer = new byte[BUFFER_SIZE];
while (inFs.Position + BUFFER_SIZE <= inFs.Length)
{
UpdateProgress2?.Invoke($"{inFs.Position / (double)inFs.Length:P}",
$"{inFs.Position} / {inFs.Length} bytes", inFs.Position,
inFs.Length);
UpdateProgress?.Invoke("Compressing...", file.Value.Path, currentSize, totalSize);
inFs.Read(buffer, 0, buffer.Length);
zStream.Write(buffer, 0, buffer.Length);
currentSize += buffer.Length;
}
buffer = new byte[inFs.Length - inFs.Position];
UpdateProgress2?.Invoke($"{inFs.Position / (double)inFs.Length:P}",
$"{inFs.Position} / {inFs.Length} bytes", inFs.Position, inFs.Length);
UpdateProgress?.Invoke("Compressing...", file.Value.Path, currentSize, totalSize);
inFs.Read(buffer, 0, buffer.Length);
zStream.Write(buffer, 0, buffer.Length);
currentSize += buffer.Length;
UpdateProgress2?.Invoke($"{inFs.Length / (double)inFs.Length:P}", "Finishing...", inFs.Length,
inFs.Length);
inFs.Close();
zStream.Close();
outFs.Dispose();
}
else
{
currentSize += file.Value.Length;
}
}
#if DEBUG
stopwatch.Stop();
Console.WriteLine("Core.CompressFiles(): Took {0} seconds to compress files",
stopwatch.Elapsed.TotalSeconds);
#endif
if (Context.Metadata != null)
{
MemoryStream xms = new MemoryStream();
XmlSerializer xs = new XmlSerializer(typeof(CICMMetadataType));
xs.Serialize(xms, Context.Metadata);
xms.Position = 0;
JsonSerializer js = new JsonSerializer
{
Formatting = Formatting.Indented,
NullValueHandling = NullValueHandling.Ignore
};
MemoryStream jms = new MemoryStream();
StreamWriter sw = new StreamWriter(jms, Encoding.UTF8, 1048576, true);
js.Serialize(sw, Context.Metadata, typeof(CICMMetadataType));
sw.Close();
jms.Position = 0;
destinationFolder = Path.Combine(Settings.Current.RepositoryPath, "metadata", mdid[0].ToString(),
mdid[1].ToString(), mdid[2].ToString(), mdid[3].ToString(),
mdid[4].ToString());
Directory.CreateDirectory(destinationFolder);
FileStream xfs = new FileStream(Path.Combine(destinationFolder, mdid + ".xml"), FileMode.CreateNew,
FileAccess.Write);
xms.CopyTo(xfs);
xfs.Close();
FileStream jfs = new FileStream(Path.Combine(destinationFolder, mdid + ".json"), FileMode.CreateNew,
FileAccess.Write);
jms.CopyTo(jfs);
jfs.Close();
xms.Position = 0;
jms.Position = 0;
}
FinishedWithText?.Invoke($"Correctly added operating system with MDID {mdid}");
}
catch (ThreadAbortException) { }
catch (Exception ex)
{
if (Debugger.IsAttached)
{
throw;
}
Failed?.Invoke($"Exception {ex.Message}\n{ex.InnerException}");
#if DEBUG
Console.WriteLine("Exception {0}\n{1}", ex.Message, ex.InnerException);
#endif
}
}