public static byte[] Decompress(byte[] inputBytes)
{
byte[] result;
using (LZMACoder coder = new LZMACoder())
using (MemoryStream input = new MemoryStream(inputBytes))
using (MemoryStream output = new MemoryStream())
{
coder.Decompress(input, output);
result = output.ToArray();
}
return(result);
}
private bool Download(CacheContentFile file)
{
var fileName = Path.Combine(Location, file.Name);
var outputDirectory = Path.GetDirectoryName(fileName);
var temporaryFile = Path.Combine(outputDirectory, file.SHA1Hash + ".cpart");
var URL = _server + file.Cache + "/" + file.Name;
if (!Directory.Exists(outputDirectory))
{
Directory.CreateDirectory(outputDirectory);
}
int startAt = 0;
Log.Info(String.Format("Starting to download {0}, {1} bytes.", file.Name, file.Size));
if (File.Exists(temporaryFile))
{
//resume the download
if (_usecpart)
{
var fi = new FileInfo(temporaryFile);
startAt = (int)fi.Length;
SendStatus(StatusChangedEnum.FileDownloading, new object[] { file.Name, file.CompressedSize, startAt }, startAt);
Log.Info(String.Format("Partial file for {1} found, starting download at {0} bytes.", startAt, file.Name));
}
else
{
File.Delete(temporaryFile);
}
}
bool compressed = false;
#if !DEBUG
try
{
#endif
if (Utilities.URLExists(URL + ".lzma"))
{
compressed = true;
URL += ".lzma";
SendStatus(StatusChangedEnum.FileDownloadingLzma, file.Name, 0);
Log.Info(String.Format("Found a compressed file for {0}.", fileName));
}
Stream inStream, outStream;
if (startAt != file.Size && startAt != file.CompressedSize) //if they equal, ._.
{
// initialize request
var webRequest = (HttpWebRequest)WebRequest.Create(URL);
webRequest.AddRange(startAt);
var webResponse = (HttpWebResponse)webRequest.GetResponse();
inStream = webResponse.GetResponseStream();
outStream = File.Open(temporaryFile, FileMode.Append, FileAccess.Write, FileShare.Read);
var buffer = new byte[2048];
var lastBytes = 0;
while ((lastBytes = inStream.Read(buffer, 0, buffer.Length)) > 0)
{
outStream.Write(buffer, 0, lastBytes);
SendStatus(StatusChangedEnum.FileDownloading, new object[] { file.Name, file.CompressedSize, lastBytes }, lastBytes);
}
// clean up the streams
inStream.Close();
outStream.Close();
SendStatus(StatusChangedEnum.FileDownloadFinish, file.Name, 0);
}
if (compressed)
{
try
{
// decompress the temp file
var tempDecPath = fileName + ".deco";
var decoder = new LZMACoder();
SendStatus(StatusChangedEnum.FileDecompressStart, file.Name, 0);
Log.Info("decompressing " + file.Name);
inStream = File.OpenRead(temporaryFile);
outStream = File.Open(tempDecPath, FileMode.Create);
try
{
decoder.Decompress(inStream, outStream);
}
catch (ApplicationException ex)
{
inStream.Close();
outStream.Close();
throw ex;
}
inStream.Close();
outStream.Close();
File.Delete(temporaryFile);
File.Move(tempDecPath, temporaryFile);
SendStatus(StatusChangedEnum.FileDecompressFinish, file.Name, 0);
}
catch (ApplicationException e)
{
// lzma sdk threw an error.
File.Delete(temporaryFile);
Log.Error(String.Format("LZMA file failed to decompress. {0}", e.ToString()));
_lastException = e;
return(false);
}
}
// check the temp file's validity
SendStatus(StatusChangedEnum.FileVerifyStart, file.Name, 0);
var outHash = Utilities.GetFileSHA1(temporaryFile);
var inHash = file.SHA1Hash;
if (inHash != outHash)
{
_lastException = new Exception("Hash verification failed for " + fileName);
Log.Error("Hash verification failed for " + fileName);
File.Delete(temporaryFile);
SendStatus(StatusChangedEnum.FileVerifyFailed, file.Name, 0);
return(false);
}
SendStatus(StatusChangedEnum.FileVerifyFinish, file.Name, 0);
// and rename the temp file, and then delete it
File.Copy(temporaryFile, fileName, true);
File.Delete(temporaryFile);
return(true);
#if !DEBUG
}
catch (Exception e) {
Log.Error(String.Format("Error while downloading {0}.", e.ToString()));
_lastException = e;
}
return(false);
#endif
}
/// <summary>
/// Ctor - Read replay.
/// </summary>
/// <param name="path"></param>
/// <param name="readHeaderless"></param>
public Replay(string path, bool readHeaderless = false)
{
if (!File.Exists(path))
{
throw new FileNotFoundException();
}
// Read the replay data
using (var fs = new FileStream(path, FileMode.Open))
using (var br = new BinaryReader(fs))
{
if (!readHeaderless)
{
// Version None (Original data)
ReplayVersion = br.ReadString();
MapMd5 = br.ReadString();
Md5 = br.ReadString();
PlayerName = br.ReadString();
Date = Convert.ToDateTime(br.ReadString(), CultureInfo.InvariantCulture);
TimePlayed = br.ReadInt64();
// The dates are serialized incorrectly in older replays, so to keep compatibility,
// use the time played.
Date = new DateTime(1970, 1, 1, 0, 0, 0, 0).AddMilliseconds(TimePlayed);
Mode = (GameMode)br.ReadInt32();
// The mirror mod is the 32-nd bit, which, when read as an Int32, results in a negative number.
// To fix this, that case is handled separately.
if (ReplayVersion == "0.0.1" || ReplayVersion == "None")
{
var mods = br.ReadInt32();
// First check if the mods are None, which is -1 (all bits set). This doesn't cause issues because
// there are incompatible mods among the first 32 (like all the speed mods), so all first 32 bits
// can't be 1 simultaneously unless it's a None.
if (mods == -1)
{
Mods = ModIdentifier.None;
mods = 0;
}
else if (mods < 0)
{
// If the 32-nd bit is set, add the Mirror mod and unset the 32-nd bit.
Mods = ModIdentifier.Mirror;
mods &= ~(1 << 31);
}
// Add the rest of the mods.
Mods |= (ModIdentifier)mods;
}
else
{
Mods = (ModIdentifier)br.ReadInt64();
}
Score = br.ReadInt32();
Accuracy = br.ReadSingle();
MaxCombo = br.ReadInt32();
CountMarv = br.ReadInt32();
CountPerf = br.ReadInt32();
CountGreat = br.ReadInt32();
CountGood = br.ReadInt32();
CountOkay = br.ReadInt32();
CountMiss = br.ReadInt32();
PauseCount = br.ReadInt32();
// Versions beyond None
if (ReplayVersion != "None")
{
var replayVersion = new Version(ReplayVersion);
if (replayVersion >= new Version("0.0.1"))
{
RandomizeModifierSeed = br.ReadInt32();
}
}
}
// Create the new list of replay frames.
Frames = new List <ReplayFrame>();
// Split the frames up by commas
var frames = new List <string>();
if (!readHeaderless)
{
frames = Encoding.ASCII.GetString(LZMACoder.Decompress(br.BaseStream).ToArray()).Split(',').ToList();
}
else
{
frames = Encoding.ASCII.GetString(LZMACoder.Decompress(br.ReadBytes((int)br.BaseStream.Length))).Split(',').ToList();
}
// Add all the replay frames to the object
foreach (var frame in frames)
{
try
{
// Split up the frame string by SongTime|KeyPressState
var frameSplit = frame.Split('|');
Frames.Add(new ReplayFrame(int.Parse(frameSplit[0]), (ReplayKeyPressState)Enum.Parse(typeof(ReplayKeyPressState), frameSplit[1])));
}
catch (Exception e)
{
continue;
}
}
}
}
/// <summary>
/// Ctor - Read replay.
/// </summary>
/// <param name="path"></param>
/// <param name="readHeaderless"></param>
public Replay(string path, bool readHeaderless = false)
{
if (!File.Exists(path))
{
throw new FileNotFoundException();
}
// Read the replay data
using (var fs = new FileStream(path, FileMode.Open))
using (var br = new BinaryReader(fs))
{
if (!readHeaderless)
{
// Version None (Original data)
ReplayVersion = br.ReadString();
MapMd5 = br.ReadString();
Md5 = br.ReadString();
PlayerName = br.ReadString();
Date = Convert.ToDateTime(br.ReadString(), CultureInfo.InvariantCulture);
TimePlayed = br.ReadInt64();
// The dates are serialized incorrectly in older replays, so to keep compatibility,
// use the time played.
Date = new DateTime(1970, 1, 1, 0, 0, 0, 0).AddMilliseconds(TimePlayed);
Mode = (GameMode)br.ReadInt32();
Mods = (ModIdentifier)br.ReadInt32();
Score = br.ReadInt32();
Accuracy = br.ReadSingle();
MaxCombo = br.ReadInt32();
CountMarv = br.ReadInt32();
CountPerf = br.ReadInt32();
CountGreat = br.ReadInt32();
CountGood = br.ReadInt32();
CountOkay = br.ReadInt32();
CountMiss = br.ReadInt32();
PauseCount = br.ReadInt32();
// Versions beyond None
if (ReplayVersion != "None")
{
var replayVersion = new Version(ReplayVersion);
if (replayVersion >= new Version("0.0.1"))
{
RandomizeModifierSeed = br.ReadInt32();
}
}
}
// Create the new list of replay frames.
Frames = new List <ReplayFrame>();
// Split the frames up by commas
var frames = new List <string>();
if (!readHeaderless)
{
frames = Encoding.ASCII.GetString(LZMACoder.Decompress(br.BaseStream).ToArray()).Split(',').ToList();
}
else
{
frames = Encoding.ASCII.GetString(LZMACoder.Decompress(br.ReadBytes((int)br.BaseStream.Length))).Split(',').ToList();
}
// Add all the replay frames to the object
foreach (var frame in frames)
{
try
{
// Split up the frame string by SongTime|KeyPressState
var frameSplit = frame.Split('|');
Frames.Add(new ReplayFrame(int.Parse(frameSplit[0]), (ReplayKeyPressState)Enum.Parse(typeof(ReplayKeyPressState), frameSplit[1])));
}
catch (Exception e)
{
continue;
}
}
}
}
