public void Dispose()
{
if (this.archiveHandle != IntPtr.Zero)
{
Rar.RARCloseArchive(this.archiveHandle);
this.archiveHandle = IntPtr.Zero;
}
}
private void Extract(string destinationPath, string destinationName)
{
int result = Rar.RARProcessFile(this.archiveHandle, (int)Operation.Extract, destinationPath, destinationName);
// Check result
if (result != 0)
{
ProcessFileError(result);
}
}
/// <summary>
/// Tests the ability to extract the current file without saving extracted data to disk
/// </summary>
/// <returns></returns>
public void Test()
{
int result = Rar.RARProcessFile(this.archiveHandle, (int)Operation.Test, string.Empty, string.Empty);
// Check result
if (result != 0)
{
ProcessFileError(result);
}
}
internal static string UnCompressFiles(string filePath, string unCompressDirName, bool isCoverOrNew)
{
filePath = filePath.Replace('/', '\\');
string dirPath = filePath.Substring(0, filePath.LastIndexOf('\\') + 1).Trim('\\'); //文件夹
string fileName = filePath.Substring(filePath.LastIndexOf('\\')).Trim('\\'); //文件名
if (!isCoverOrNew)
{
if (string.IsNullOrEmpty(unCompressDirName))
{
unCompressDirName = fileName.Substring(0, fileName.LastIndexOf('.'));
}
dirPath = ALFile.GetNewDirPath(dirPath, unCompressDirName, isCoverOrNew);
}
bool isNewDir = false;
if (!Directory.Exists(dirPath))
{
Directory.CreateDirectory(dirPath);
isNewDir = true;
}
Rar rar = new Rar();
try
{
rar.PasswordRequired += (sender, eventArgs) => { throw new Exception("不能解压设置密码的文件!"); };
rar.MissingVolume += (sender, eventArgs) => { throw new Exception("压缩文件已损坏!"); };
rar.DestinationPath = dirPath;
rar.Open(filePath, OpenMode.Extract);
while (rar.ReadHeader())
{
rar.Extract();
}
}
catch (Exception ex)
{
if (isNewDir)
{
Directory.Delete(dirPath, true);
}
throw ex;
}
finally
{
if (rar != null)
{
rar.Close();
}
}
return(dirPath);
}
/// <summary>
/// 解压文件主方法 支持所有格式的解压
/// </summary>
/// <param name="filePath">压缩文件路径</param>
/// <param name="unCompressDirName">解压目录名称</param>
/// <param name="isCoverOrNew">true为覆盖,false为新建</param>
/// <returns></returns>
public static string UnCompressFiles(string filePath, string unCompressDirName, bool isCoverOrNew)
{
if (string.IsNullOrEmpty(filePath))
{
throw new Exception("请传入需解压的文件绝对路径(filePath)!");
}
string suffixName = filePath.Substring(filePath.LastIndexOf('.') + 1).ToUpper();
if (suffixName == "ZIP" || suffixName == "GZIP" || suffixName == "TAR" || suffixName == "BZIP2")
{
return(Zip.UnCompressFiles(filePath, unCompressDirName, isCoverOrNew));
}
else
{
return(Rar.UnCompressFiles(filePath, unCompressDirName, isCoverOrNew));
}
}
/// <summary>
/// Close the currently open archive
/// </summary>
/// <returns></returns>
public void Close()
{
// Exit without exception if no archive is open
if (this.archiveHandle == IntPtr.Zero)
{
return;
}
// Close archive
int result = Rar.RARCloseArchive(this.archiveHandle);
// Check result
if (result != 0)
{
ProcessFileError(result);
}
else
{
this.archiveHandle = IntPtr.Zero;
}
}
/// <summary>
/// Reads the next archive header and populates CurrentFile property data
/// </summary>
/// <returns></returns>
public bool ReadHeader()
{
// Throw exception if archive not open
if (this.archiveHandle == IntPtr.Zero)
{
throw new IOException("Archive is not open.");
}
// Initialize header struct
this.header = new RARHeaderDataEx();
header.Initialize();
// Read next entry
currentFile = null;
int result = Rar.RARReadHeaderEx(this.archiveHandle, ref this.header);
// Check for error or end of archive
if ((RarError)result == RarError.EndOfArchive)
{
return(false);
}
else if ((RarError)result == RarError.BadData)
{
throw new IOException("Archive data is corrupt.");
}
// Determine if new file
if (((header.Flags & 0x01) != 0) && currentFile != null)
{
currentFile.ContinuedFromPrevious = true;
}
else
{
// New file, prepare header
currentFile = new RARFileInfo();
currentFile.FileName = header.FileNameW.ToString();
if ((header.Flags & 0x02) != 0)
{
currentFile.ContinuedOnNext = true;
}
if (header.PackSizeHigh != 0)
{
currentFile.PackedSize = (header.PackSizeHigh * 0x100000000) + header.PackSize;
}
else
{
currentFile.PackedSize = header.PackSize;
}
if (header.UnpSizeHigh != 0)
{
currentFile.UnpackedSize = (header.UnpSizeHigh * 0x100000000) + header.UnpSize;
}
else
{
currentFile.UnpackedSize = header.UnpSize;
}
currentFile.HostOS = (int)header.HostOS;
currentFile.FileCRC = header.FileCRC;
currentFile.FileTime = FromMSDOSTime(header.FileTime);
currentFile.VersionToUnpack = (int)header.UnpVer;
currentFile.Method = (int)header.Method;
currentFile.FileAttributes = (int)header.FileAttr;
currentFile.BytesExtracted = 0;
if ((header.Flags & 0xE0) == 0xE0)
{
currentFile.IsDirectory = true;
}
this.OnNewFile();
}
// Return success
return(true);
}
/// <summary>
/// Opens specified archive using the specified mode.
/// </summary>
/// <param name="archivePathName">Path of archive to open</param>
/// <param name="openMode">Mode in which to open archive</param>
public void Open(string archivePathName, OpenMode openMode)
{
IntPtr handle = IntPtr.Zero;
// Close any previously open archives
if (this.archiveHandle != IntPtr.Zero)
{
this.Close();
}
// Prepare extended open archive struct
this.ArchivePathName = archivePathName;
RAROpenArchiveDataEx openStruct = new RAROpenArchiveDataEx();
openStruct.Initialize();
openStruct.ArcName = this.archivePathName + "\0";
openStruct.ArcNameW = this.archivePathName + "\0";
openStruct.OpenMode = (uint)openMode;
if (this.retrieveComment)
{
openStruct.CmtBuf = new string((char)0, 65536);
openStruct.CmtBufSize = 65536;
}
else
{
openStruct.CmtBuf = null;
openStruct.CmtBufSize = 0;
}
// Open archive
handle = Rar.RAROpenArchiveEx(ref openStruct);
// Check for success
if (openStruct.OpenResult != 0)
{
switch ((RarError)openStruct.OpenResult)
{
case RarError.InsufficientMemory:
throw new OutOfMemoryException("Insufficient memory to perform operation.");
case RarError.BadData:
throw new IOException("Archive header broken");
case RarError.BadArchive:
throw new IOException("File is not a valid archive.");
case RarError.OpenError:
throw new IOException("File could not be opened.");
}
}
// Save handle and flags
this.archiveHandle = handle;
this.archiveFlags = (ArchiveFlags)openStruct.Flags;
// Set callback
Rar.RARSetCallback(this.archiveHandle, this.callback, this.GetHashCode());
// If comment retrieved, save it
if (openStruct.CmtState == 1)
{
this.comment = openStruct.CmtBuf.ToString();
}
// If password supplied, set it
if (this.password.Length != 0)
{
Rar.RARSetPassword(this.archiveHandle, this.password);
}
// Fire NewVolume event for first volume
this.OnNewVolume(this.archivePathName);
}
