/// <summary>
/// Determines whether a file, identified by a file name, is a cabinet file.
/// </summary>
/// <param name="filename">The name of the file to be tested.</param>
/// <param name="cabinfo">A <see cref="FdiCabinetInfo"/> object that will receive information about the cabinet file.</param>
/// <returns>Returns True if the file is a cabinet. If so, the cabinfo object is filled with information about the cabinet file.
/// Returns False if the file is not a cabinet.</returns>
public bool IsCabinetFile(string filename, FdiCabinetInfo cabinfo)
{
if (disposed)
{
throw new ObjectDisposedException("CabDecompressor");
}
using (FileStream fs = File.Open(filename, FileMode.Open,
FileAccess.Read, FileShare.ReadWrite))
{
return(IsCabinetFile(fs, cabinfo));
}
}
/// <summary>
/// Determines whether a file, identified by a stream, is a cabinet file.
/// </summary>
/// <param name="fstream">The open file stream to be tested.</param>
/// <param name="cabinfo">A <see cref="FdiCabinetInfo"/> object that will receive information about the cabinet file.</param>
/// <returns>Returns True if the file is a cabinet. If so, the cabinfo object is filled with information about the cabinet file.
/// Returns False if the file is not a cabinet.</returns>
public bool IsCabinetFile(Stream fstream, FdiCabinetInfo cabinfo)
{
if (disposed)
{
throw new ObjectDisposedException("CabDecompressor");
}
GCHandle gch = GCHandle.Alloc(fstream);
try
{
return(CabSdk.FdiIsCabinet(FdiContext, (IntPtr)gch, cabinfo));
}
finally
{
gch.Free();
}
}
/// <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);
}
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);
}
}
