private void LoadIndexInfo(Byte[] indexData, bool needBackUpIndex)
{
if (indexData.Length > 0)
{
if (needBackUpIndex)
{
BackupIndexInfo(indexData);
}
indexData = DESCrypto.Decrypt(indexData, m_number);//解密索引数据
}
m_deletedIndexes.Clear();
m_fileIndexes.Clear();
var index = 0;
while (index < indexData.Length)
{
var info = IndexInfo.Decode(indexData, ref index);
if (info.Deleted)
{
m_deletedIndexes.Add(info);
}
else
{
m_fileIndexes[info.Id.PathNormalize()] = info;
}
}
m_memoryStream.Position = m_packageInfo.IndexOffset;//重置回文件信息结尾处
}
private void LoadIndexInfo(byte[] indexData, bool needBackUpIndex)
{
if (indexData.Length > 0)
{
if (needBackUpIndex)
{
this.BackupIndexInfo(indexData);
}
indexData = DESCrypto.Decrypt(indexData, this.m_number);
}
this.m_deletedIndexes.Clear();
this.m_fileIndexes.Clear();
int offset = 0;
while (offset < indexData.Length)
{
IndexInfo item = IndexInfo.Decode(indexData, ref offset);
if (item.Deleted)
{
this.m_deletedIndexes.Add(item);
}
else
{
this.m_fileIndexes[item.Id.PathNormalize()] = item;
}
}
this.m_fileStream.Position = this.m_packageInfo.IndexOffset;
}
public static void DecompressToMogoFileAndDirectory(string targetPath, string zipFilePath)
{
if (File.Exists(zipFilePath))
{
FileStream baseInputStream = File.OpenRead(zipFilePath);
MogoFileSystem.Instance.Open();
MogoFileSystem.Instance.GetAndBackUpIndexInfo();
using (ZipInputStream stream2 = new ZipInputStream(baseInputStream))
{
ZipEntry entry;
while ((entry = stream2.GetNextEntry()) != null)
{
if (!entry.IsDirectory)
{
string name = entry.Name;
if (!string.IsNullOrEmpty(name))
{
int num;
byte[] buffer = new byte[0x800];
if (name.EndsWith(".u"))
{
name = Path.Combine(targetPath, name);
string directoryName = Path.GetDirectoryName(name);
if (!(string.IsNullOrEmpty(directoryName) || Directory.Exists(directoryName)))
{
Directory.CreateDirectory(directoryName);
}
using (FileStream stream3 = File.Create(name))
{
while ((num = stream2.Read(buffer, 0, buffer.Length)) > 0)
{
stream3.Write(buffer, 0, num);
}
}
}
else
{
IndexInfo info = MogoFileSystem.Instance.BeginSaveFile(name, entry.Size);
while ((num = stream2.Read(buffer, 0, buffer.Length)) > 0)
{
MogoFileSystem.Instance.WriteFile(info, buffer, 0, num);
}
MogoFileSystem.Instance.EndSaveFile(info);
}
}
}
}
}
MogoFileSystem.Instance.SaveIndexInfo();
MogoFileSystem.Instance.CleanBackUpIndex();
MogoFileSystem.Instance.Close();
}
else
{
LoggerHelper.Error("Zip file not exist: " + zipFilePath, true);
}
}
public static byte[] Encode(IndexInfo info)
{
var result = new List <byte>();
result.AddRange(EncodeDecoder.EncodeString(info.Id));
result.AddRange(EncodeDecoder.EncodeString(info.FileName));
result.AddRange(EncodeDecoder.EncodeString(info.Path));
result.AddRange(EncodeDecoder.EncodeUInt32(info.Offset));
result.AddRange(EncodeDecoder.EncodeUInt32(info.Length));
result.AddRange(EncodeDecoder.EncodeUInt32(info.PageLength));
result.AddRange(EncodeDecoder.EncodeBoolean(info.Deleted));
return(result.ToArray());
}
public static IndexInfo Decode(byte[] data, ref int offset)
{
var info = new IndexInfo();
info.Id = EncodeDecoder.DecodeString(data, ref offset);
info.FileName = EncodeDecoder.DecodeString(data, ref offset);
info.Path = EncodeDecoder.DecodeString(data, ref offset);
info.Offset = EncodeDecoder.DecodeUInt32(data, ref offset);
info.Length = EncodeDecoder.DecodeUInt32(data, ref offset);
info.PageLength = EncodeDecoder.DecodeUInt32(data, ref offset);
info.Deleted = EncodeDecoder.DecodeBoolean(data, ref offset);
return(info);
}
public void WriteFile(IndexInfo info, byte[] buffer, int offset, int count)
{
info.Length += (uint)count;
if (this.m_encodeData)
{
this.m_bitCryto.Reset();
int length = buffer.Length;
for (int i = 0; i < length; i++)
{
buffer[i] = this.m_bitCryto.Encode(buffer[i]);
}
}
this.m_fileStream.Write(buffer, offset, count);
}
/// <summary>
/// 写入文件信息。
/// </summary>
/// <param name="info"></param>
/// <param name="buffer"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
public override void WriteFile(IndexInfo info, Byte[] buffer, int offset, int count)
{
info.Length += (uint)count;
if (m_encodeData)
{
m_bitCryto.Reset();
int len = buffer.Length;
for (int i = 0; i < len; ++i)
{
buffer[i] = m_bitCryto.Encode(buffer[i]);
}
}
m_memoryStream.Write(buffer, offset, count);
}
public void DeleteFile(string fileFullName)
{
lock (m_locker)
{
fileFullName = fileFullName.PathNormalize();
if (this.m_fileIndexes.ContainsKey(fileFullName))
{
IndexInfo item = this.m_fileIndexes[fileFullName];
item.Deleted = true;
item.Id = "";
this.m_fileIndexes.Remove(fileFullName);
this.m_deletedIndexes.Add(item);
}
}
}
/// <summary>
/// 开始存储文件。
/// </summary>
/// <param name="fileFullName"></param>
/// <param name="fileSize"></param>
/// <returns></returns>
public override IndexInfo BeginSaveFile(string fileFullName, long fileSize)
{
IndexInfo info;
lock (m_locker)
{
fileFullName = fileFullName.PathNormalize();
if (m_fileIndexes.ContainsKey(fileFullName))//文件已存在
{
var fileInfo = m_fileIndexes[fileFullName];
if (fileSize > fileInfo.PageLength)//新文件大小超出预留页大小
{
DeleteFile(fileFullName);
info = new IndexInfo()
{
Id = fileFullName, FileName = fileInfo.FileName, Path = fileInfo.Path, Offset = m_packageInfo.IndexOffset, FileState = FileState.New
};
m_fileStream.Position = m_packageInfo.IndexOffset;
m_fileIndexes[fileFullName] = info;
}
else//新文件大小没有超出预留页大小
{
info = fileInfo;
info.Length = 0;
info.FileState = FileState.Modify;
m_fileStream.Position = info.Offset;
}
}
else//文件不存在，在索引最后新建
{
info = new IndexInfo()
{
Id = fileFullName,
FileName = Path.GetFileName(fileFullName),
Path = Path.GetDirectoryName(fileFullName),
Offset = m_packageInfo.IndexOffset,
FileState = FileState.New
};
m_fileStream.Position = m_packageInfo.IndexOffset;
m_fileIndexes[fileFullName] = info;
}
}
return(info);
}
public void SaveFile(string fileFullName)
{
if (File.Exists(fileFullName))
{
FileInfo info = new FileInfo(fileFullName);
IndexInfo info2 = this.BeginSaveFile(fileFullName, info.Length);
byte[] buffer = new byte[0x800];
using (FileStream stream = File.OpenRead(fileFullName))
{
int num;
while ((num = stream.Read(buffer, 0, buffer.Length)) > 0)
{
this.WriteFile(info2, buffer, 0, num);
}
}
this.EndSaveFile(info2);
}
}
private byte[] DoLoadFile(string fileFullName)
{
IndexInfo info = this.m_fileIndexes[fileFullName];
byte[] buffer = new byte[info.Length];
this.m_fileStream.Position = info.Offset;
this.m_fileStream.Read(buffer, 0, buffer.Length);
if (this.m_encodeData)
{
this.m_bitCryto.Reset();
int length = buffer.Length;
for (int i = 0; i < length; i++)
{
buffer[i] = this.m_bitCryto.Decode(buffer[i]);
}
}
return(buffer);
}
public IndexInfo BeginSaveFile(string fileFullName, long fileSize)
{
IndexInfo info;
lock (m_locker)
{
fileFullName = fileFullName.PathNormalize();
if (this.m_fileIndexes.ContainsKey(fileFullName))
{
IndexInfo info2 = this.m_fileIndexes[fileFullName];
if (fileSize > info2.PageLength)
{
this.DeleteFile(fileFullName);
info = new IndexInfo {
Id = fileFullName,
FileName = info2.FileName,
Path = info2.Path,
Offset = this.m_packageInfo.IndexOffset,
FileState = FileState.New
};
this.m_fileStream.Position = this.m_packageInfo.IndexOffset;
this.m_fileIndexes[fileFullName] = info;
return(info);
}
info = info2;
info.Length = 0;
info.FileState = FileState.Modify;
this.m_fileStream.Position = info.Offset;
return(info);
}
info = new IndexInfo {
Id = fileFullName,
FileName = Path.GetFileName(fileFullName),
Path = Path.GetDirectoryName(fileFullName),
Offset = this.m_packageInfo.IndexOffset,
FileState = FileState.New
};
this.m_fileStream.Position = this.m_packageInfo.IndexOffset;
this.m_fileIndexes[fileFullName] = info;
}
return(info);
}
public void EndSaveFile(IndexInfo info)
{
lock (m_locker)
{
uint num = info.Length % 0x200;
if (num != 0)
{
uint num2 = 0x200 - num;
byte[] buffer = new byte[num2];
this.m_fileStream.Write(buffer, 0, buffer.Length);
info.PageLength = info.Length + num2;
}
else
{
info.PageLength = info.Length;
}
this.m_fileStream.Flush();
if (info.FileState == FileState.New)
{
this.m_packageInfo.IndexOffset = (uint)this.m_fileStream.Position;
}
}
}
/// <summary>
/// 存储文件结束。
/// </summary>
/// <param name="info"></param>
public override void EndSaveFile(IndexInfo info)
{
lock (m_locker)
{
var leftSize = info.Length % m_pageSize;
if (leftSize != 0)
{
var empty = m_pageSize - leftSize;
var emptyData = new Byte[empty];
m_memoryStream.Write(emptyData, 0, emptyData.Length);
info.PageLength = info.Length + empty;
}
else
{
info.PageLength = info.Length;
}
m_memoryStream.Flush();
if (info.FileState == FileState.New)//修改状态不用修改索引偏移
{
m_packageInfo.IndexOffset = (uint)m_memoryStream.Position;
}
}
}
/// <summary>
/// 写入文件信息。
/// </summary>
/// <param name="info"></param>
/// <param name="buffer"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
public void WriteFile(IndexInfo info, Byte[] buffer, int offset, int count)
{
info.Length += (uint)count;
if (m_encodeData)
{
m_bitCryto.Reset();
int len = buffer.Length;
for (int i = 0; i < len; ++i)
{
buffer[i] = m_bitCryto.Encode(buffer[i]);
}
}
m_fileStream.Write(buffer, offset, count);
}
/// <summary>
/// 存储文件结束。
/// </summary>
/// <param name="info"></param>
public void EndSaveFile(IndexInfo info)
{
lock (m_locker)
{
var leftSize = info.Length % m_pageSize;
if (leftSize != 0)
{
var empty = m_pageSize - leftSize;
var emptyData = new Byte[empty];
m_fileStream.Write(emptyData, 0, emptyData.Length);
info.PageLength = info.Length + empty;
}
else
info.PageLength = info.Length;
m_fileStream.Flush();
if (info.FileState == FileState.New)//修改状态不用修改索引偏移
m_packageInfo.IndexOffset = (uint)m_fileStream.Position;
}
}
/// <summary> /// 存储文件结束。 /// </summary> /// <param name="info"></param> public abstract void EndSaveFile(IndexInfo info);
/// <summary> /// 写入文件信息。 /// </summary> /// <param name="info"></param> /// <param name="buffer"></param> /// <param name="offset"></param> /// <param name="count"></param> public abstract void WriteFile(IndexInfo info, Byte[] buffer, int offset, int count);
public static byte[] Encode(IndexInfo info)
{
var result = new List<byte>();
result.AddRange(EncodeDecoder.EncodeString(info.Id));
result.AddRange(EncodeDecoder.EncodeString(info.FileName));
result.AddRange(EncodeDecoder.EncodeString(info.Path));
result.AddRange(EncodeDecoder.EncodeUInt32(info.Offset));
result.AddRange(EncodeDecoder.EncodeUInt32(info.Length));
result.AddRange(EncodeDecoder.EncodeUInt32(info.PageLength));
result.AddRange(EncodeDecoder.EncodeBoolean(info.Deleted));
return result.ToArray();
}
public static IndexInfo Decode(byte[] data, ref int offset)
{
var info = new IndexInfo();
info.Id = EncodeDecoder.DecodeString(data, ref offset);
info.FileName = EncodeDecoder.DecodeString(data, ref offset);
info.Path = EncodeDecoder.DecodeString(data, ref offset);
info.Offset = EncodeDecoder.DecodeUInt32(data, ref offset);
info.Length = EncodeDecoder.DecodeUInt32(data, ref offset);
info.PageLength = EncodeDecoder.DecodeUInt32(data, ref offset);
info.Deleted = EncodeDecoder.DecodeBoolean(data, ref offset);
return info;
}
/// <summary>
/// 开始存储文件。
/// </summary>
/// <param name="fileFullName"></param>
/// <param name="fileSize"></param>
/// <returns></returns>
public IndexInfo BeginSaveFile(string fileFullName, long fileSize)
{
IndexInfo info;
lock (m_locker)
{
fileFullName = fileFullName.PathNormalize();
if (m_fileIndexes.ContainsKey(fileFullName))//文件已存在
{
var fileInfo = m_fileIndexes[fileFullName];
if (fileSize > fileInfo.PageLength)//新文件大小超出预留页大小
{
DeleteFile(fileFullName);
info = new IndexInfo() { Id = fileFullName, FileName = fileInfo.FileName, Path = fileInfo.Path, Offset = m_packageInfo.IndexOffset, FileState = FileState.New };
m_fileStream.Position = m_packageInfo.IndexOffset;
m_fileIndexes[fileFullName] = info;
}
else//新文件大小没有超出预留页大小
{
info = fileInfo;
info.Length = 0;
info.FileState = FileState.Modify;
m_fileStream.Position = info.Offset;
}
}
else//文件不存在，在索引最后新建
{
info = new IndexInfo()
{
Id = fileFullName,
FileName = Path.GetFileName(fileFullName),
Path = Path.GetDirectoryName(fileFullName),
Offset = m_packageInfo.IndexOffset,
FileState = FileState.New
};
m_fileStream.Position = m_packageInfo.IndexOffset;
m_fileIndexes[fileFullName] = info;
}
}
return info;
}