public void GetFileStream(NamedObjectStream stream, string uncPath, string contentFilename,
long?startRange = null, long?endRange = null)
{
object fileHandle = new object();
FileStatus status;
SMBLibrary.FileInformation fileInfo = null;
var pathToFile = $"{uncPath}\\{contentFilename}";
_status = _smb2FileStore.CreateFile(out fileHandle, out status, pathToFile,
AccessMask.GENERIC_READ, 0, ShareAccess.Read, CreateDisposition.FILE_OPEN,
CreateOptions.FILE_NON_DIRECTORY_FILE, null);
if (_status == NTStatus.STATUS_SUCCESS)
{
bool read = true;
byte[] data = null;
int start = (startRange != null && startRange.ToInt(0) >= 0) ? startRange.ToInt(0) : 0;
int chunkSize = 65536;
_smb2FileStore.GetFileInformation(out fileInfo, fileHandle,
FileInformationClass.FileStandardInformation);
//populate the stream metadata
stream.Name = contentFilename;
//is this a ranged call?
if (startRange != null && endRange != null)
{
chunkSize = ((endRange - startRange) < chunkSize) ? (int)(endRange - startRange + 1) : chunkSize;
int remainingBytesToRead = endRange.ToInt(0) - startRange.ToInt(0) + 1;
while (read)
{
_smb2FileStore.ReadFile(out var chunk, fileHandle, start, chunkSize);
stream.Write(chunk);
start += chunkSize;
remainingBytesToRead -= chunkSize;
chunkSize = (remainingBytesToRead < chunkSize) ? remainingBytesToRead : chunkSize;
if (remainingBytesToRead <= 0)
{
read = false;
}
}
}
while (read)
{
_smb2FileStore.ReadFile(out var chunk, fileHandle, start, chunkSize);
stream.Write(chunk);
start += chunkSize;
if (chunk == null || chunk.Length < chunkSize)
{
read = false;
}
}
stream.Position = 0;
_smb2FileStore.CloseFile(fileHandle);
}
}
public async Task <NamedObjectBytes> GetFileByes(string uncPath, string contentFilename,
long?startRange = null, long?endRange = null)
{
Stopwatch timer = Stopwatch.StartNew();
//Console.WriteLine($"SMB2ConnectionClient.GetFileBytes - CreateFile - PRECONNECT - THREADID:{this.GetHashCode()} NTStatus:{_status} FileStatus:NoConnection HOST:{_host} SHARE:{_share }PATH:{uncPath} FILENAME:{contentFilename} ");
_smb2FileStore = TreeConnect(_share, out _status) as SMB2FileStore;
if (_smb2FileStore == null)
{
_connected = false;
return(null);
}
object fileHandle = new object();
FileStatus status;
SMBLibrary.FileInformation fileInfo = null;
var pathToFile = $"{uncPath}\\{contentFilename}";
_status = _smb2FileStore.CreateFile(out fileHandle, out status, pathToFile,
AccessMask.GENERIC_READ, 0, ShareAccess.Read, CreateDisposition.FILE_OPEN,
CreateOptions.FILE_NON_DIRECTORY_FILE, null);
Console.WriteLine($"SMB2ConnectionClient.GetFileBytes - CreateFile- POSTCONNECT - THREADID:{this.GetHashCode()} NTStatus:{_status} FileStatus:{status} HOST:{_host} SHARE:{_share }PATH:{uncPath} FILENAME:{contentFilename} ");
if (_status == NTStatus.STATUS_SUCCESS)
{
bool read = true;
byte[] data = null;
int start = (startRange != null && startRange.ToInt(0) >= 0) ? startRange.ToInt(0) : 0;
int chunkSize = 65536;
_smb2FileStore.GetFileInformation(out fileInfo, fileHandle,
FileInformationClass.FileStandardInformation);
//is this a ranged call?
if (startRange != null && endRange != null)
{
chunkSize = ((endRange - startRange) < chunkSize) ? (int)(endRange - startRange + 1) : chunkSize;
int remainingBytesToRead = endRange.ToInt(0) - startRange.ToInt(0) + 1;
while (read)
{
_smb2FileStore.ReadFile(out var chunk, fileHandle, start, chunkSize);
data = data == null ? chunk : data.Concat(chunk).ToArray();
start += chunkSize;
remainingBytesToRead -= chunkSize;
chunkSize = (remainingBytesToRead < chunkSize) ? remainingBytesToRead : chunkSize;
if (remainingBytesToRead <= 0)
{
read = false;
}
}
_smb2FileStore.CloseFile(fileHandle);
return(new NamedObjectBytes()
{
FileBytes = data,
TotalFileLength = ((FileStandardInformation)fileInfo).EndOfFile,
RetrieveSpeedMs = timer.Elapsed.TotalMilliseconds
});
}
while (read)
{
_smb2FileStore.ReadFile(out var chunk, fileHandle, start, chunkSize);
if (chunk == null)
{
Debugger.Break();
}
data = data == null ? chunk : data.Concat(chunk).ToArray();
start += chunkSize;
if (chunk == null || chunk.Length < chunkSize)
{
read = false;
}
}
_smb2FileStore.CloseFile(fileHandle);
return(new NamedObjectBytes()
{
FileBytes = data,
TotalFileLength = ((FileStandardInformation)fileInfo).EndOfFile,
RetrieveSpeedMs = timer.Elapsed.TotalMilliseconds
});
}
return(null);
}