/// <summary>
/// Выполняет распаковку CAB-архива
/// </summary>
public void Decompress()
{
using (CabDecompressor decompressor = new CabDecompressor())
{
decompressor.NotifyCopyFile += OnCopyFile;
decompressor.NotifyCloseFile += OnCloseFile;
FdiCabinetInfo cabInfo = new FdiCabinetInfo();
// является ли файл CAB-архивом
if (decompressor.IsCabinetFile(_cabName, cabInfo))
{
// распаковка
decompressor.ExtractFiles(_cabName);
}
}
if (_deleteSourceCab)
File.Delete(_cabName);
}
public virtual void ExtractFile(FileInfo fileInfo, string targetFileName, bool overwriteExisting)
{
CFFOLDER containingFolder = m_folders[fileInfo.CFFILE.iFolder];
using (System.IO.Stream input = System.IO.File.Open(FileName, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read))
{
int toRead = (int)fileInfo.CFFILE.cbFile;
CabDecompressor decompressor = new CabDecompressor((CompressionType)containingFolder.typeCompress);
CabFolderStream folderStream = new CabFolderStream(input, containingFolder.coffCabStart, containingFolder.Compressed);
// skip to the beginning of the file. this is done by decompressing into a null stream
if (fileInfo.CFFILE.uoffFolderStart > 0)
{
using (NullStream ns = new NullStream())
{
decompressor.DecompressBlock((int)fileInfo.CFFILE.uoffFolderStart, folderStream.SizeCompressed, folderStream.SizeUncompressed, folderStream, ns);
}
}
using (SizeLimitedOutputStream output = new SizeLimitedOutputStream(targetFileName, System.IO.FileMode.OpenOrCreate, (int)fileInfo.CFFILE.cbFile))
{
while (toRead > 0)
{
int nextBlock = Math.Min(toRead, folderStream.SizeUncompressed);
if (folderStream.SizeUncompressed == -1)
{
nextBlock = toRead;
}
//System.Diagnostics.Debug.WriteLine(string.Format("Reading {0} bytes", nextBlock));
decompressor.DecompressBlock(nextBlock, folderStream.SizeCompressed, folderStream.SizeUncompressed, folderStream, output);
toRead -= nextBlock;
output.Flush();
}
}
}
}
static bool doFdiTest(string cabinetFullPath)
{
using (CabDecompressor decomp = new CabDecompressor())
{
// setup event handlers
decomp.NotifyCabinetInfo += new NotifyEventHandler(decomp_NotifyCabinetInfo);
decomp.NotifyCloseFile += new NotifyEventHandler(decomp_NotifyCloseFile);
decomp.NotifyCopyFile += new NotifyEventHandler(decomp_NotifyCopyFile);
decomp.NotifyEnumerate += new NotifyEventHandler(decomp_NotifyEnumerate);
decomp.NotifyNextCabinet += new NotifyEventHandler(decomp_NotifyNextCabinet);
decomp.NotifyPartialFile += new NotifyEventHandler(decomp_NotifyPartialFile);
FdiCabinetInfo cabInfo = new FdiCabinetInfo();
using (FileStream fs = new FileStream(cabinetFullPath, FileMode.Open, FileAccess.Read))
{
if (!decomp.IsCabinetFile(fs, cabInfo))
{
Console.WriteLine("File is not a cabinet.");
return false;
}
#if DO_OUTPUT
// The file is a cabinet. Display some info.
Console.WriteLine(
"Information on cabinet file '{0}'\n" +
" Total length of cabinet file : {1}\n" +
" Number of folders in cabinet : {2}\n" +
" Number of files in cabinet : {3}\n" +
" Cabinet set ID : {4}\n" +
" Cabinet number in set : {5}\n" +
" RESERVE area in cabinet? : {6}\n" +
" Chained to prev cabinet? : {7}\n" +
" Chained to next cabinet? : {8}\n",
cabinetFullPath,
cabInfo.Length,
cabInfo.FolderCount,
cabInfo.FileCount,
cabInfo.SetId,
cabInfo.CabinetNumber,
cabInfo.HasReserve,
cabInfo.HasPrev,
cabInfo.HasNext);
#endif
}
// extract path and filename
string cabinetName = Path.GetFileName(cabinetFullPath);
string cabinetPath = Path.GetDirectoryName(cabinetFullPath);
if (cabinetPath != string.Empty)
cabinetPath = cabinetPath + Path.DirectorySeparatorChar;
// let's copy some files!
if (!decomp.ExtractFiles(cabinetFullPath))
{
Console.WriteLine("FdiCopy failed. Error code {0}", decomp.ErrorInfo.FdiErrorCode);
return false;
}
return true;
}
}
static bool doFdiTest(string cabinetFullPath)
{
using (CabDecompressor decomp = new CabDecompressor())
{
// setup event handlers
decomp.NotifyCabinetInfo += new NotifyEventHandler(decomp_NotifyCabinetInfo);
decomp.NotifyCloseFile += new NotifyEventHandler(decomp_NotifyCloseFile);
decomp.NotifyCopyFile += new NotifyEventHandler(decomp_NotifyCopyFile);
decomp.NotifyEnumerate += new NotifyEventHandler(decomp_NotifyEnumerate);
decomp.NotifyNextCabinet += new NotifyEventHandler(decomp_NotifyNextCabinet);
decomp.NotifyPartialFile += new NotifyEventHandler(decomp_NotifyPartialFile);
FdiCabinetInfo cabInfo = new FdiCabinetInfo();
using (FileStream fs = new FileStream(cabinetFullPath, FileMode.Open, FileAccess.Read))
{
if (!decomp.IsCabinetFile(fs, cabInfo))
{
Console.WriteLine("File is not a cabinet.");
return(false);
}
#if DO_OUTPUT
// The file is a cabinet. Display some info.
Console.WriteLine(
"Information on cabinet file '{0}'\n" +
" Total length of cabinet file : {1}\n" +
" Number of folders in cabinet : {2}\n" +
" Number of files in cabinet : {3}\n" +
" Cabinet set ID : {4}\n" +
" Cabinet number in set : {5}\n" +
" RESERVE area in cabinet? : {6}\n" +
" Chained to prev cabinet? : {7}\n" +
" Chained to next cabinet? : {8}\n",
cabinetFullPath,
cabInfo.Length,
cabInfo.FolderCount,
cabInfo.FileCount,
cabInfo.SetId,
cabInfo.CabinetNumber,
cabInfo.HasReserve,
cabInfo.HasPrev,
cabInfo.HasNext);
#endif
}
// extract path and filename
string cabinetName = Path.GetFileName(cabinetFullPath);
string cabinetPath = Path.GetDirectoryName(cabinetFullPath);
if (cabinetPath != string.Empty)
{
cabinetPath = cabinetPath + Path.DirectorySeparatorChar;
}
// let's copy some files!
if (!decomp.ExtractFiles(cabinetFullPath))
{
Console.WriteLine("FdiCopy failed. Error code {0}", decomp.ErrorInfo.FdiErrorCode);
return(false);
}
return(true);
}
}
