static private string GetFullPathInternal(string path)
{
//-----------------------------------------------------------------
// precondition validation should be validated by callers of this method
// NOTE: if this method moves elsewhere, this assert should become an actual runtime check
// as the implicit assumptions here cannot be relied upon in an inter-class context
Debug.Assert(path != null);
// remove leading and trailing whitespace
path = path.Trim();
if (path.Length == 0)
{
throw ADP.Argument(StringsHelper.GetString(Strings.SqlFileStream_InvalidPath), "path");
}
// make sure path is not DOS device path
if (!path.StartsWith(@"\\") && !System.IO.PathInternal.IsDevice(path.AsSpan()))
{
throw ADP.Argument(StringsHelper.GetString(Strings.SqlFileStream_InvalidPath), "path");
}
// normalize the path
path = System.IO.Path.GetFullPath(path);
// make sure path is a UNC path
if (System.IO.PathInternal.IsDeviceUNC(path.AsSpan()))
{
throw ADP.Argument(StringsHelper.GetString(Strings.SqlFileStream_PathNotValidDiskResource), "path");
}
return(path);
}
private static bool ApplySwitchValues(string[] switches)
{
string methodName = MethodBase.GetCurrentMethod().Name;
SqlClientEventSource.Log.TryTraceEvent("<sc.{0}.{1}|INFO> Entry point.", TypeName, methodName);
if (switches == null || switches.Length == 0 || switches.Length % 2 == 1)
{
return(false);
}
for (int i = 0; i < switches.Length / 2; i++)
{
try
{
AppContext.SetSwitch(switches[i], Convert.ToBoolean(switches[i + 1]));
SqlClientEventSource.Log.TryTraceEvent("<sc.{0}.{1}|INFO> Successfully assigned the AppContext switch '{2}'={3}.",
TypeName, methodName, switches[i], switches[i + 1]);
}
catch (Exception e)
{
throw new ArgumentException(StringsHelper.GetString(Strings.SqlAppContextSwitchManager_InvalidValue, switches[i], switches[i + 1]), e);
}
}
SqlClientEventSource.Log.TryTraceEvent("<sc.{0}.{1}|INFO> Exit point.", TypeName, methodName);
return(true);
}
internal static InvalidUdtException Create(Type udtType, string resourceReason)
{
string reason = StringsHelper.GetString(resourceReason);
string message = StringsHelper.GetString(Strings.SqlUdt_InvalidUdtMessage, udtType.FullName, reason);
InvalidUdtException e = new InvalidUdtException(message);
ADP.TraceExceptionAsReturnValue(e);
return(e);
}
private async Task RestoreDefaults()
{
var result = await _dialogService.ShowMessageDialogAsnyc(StringsHelper.GetString("PleaseConfirm"), StringsHelper.GetString("ConfirmRestoreKeybindings"), DialogButton.OK, DialogButton.Cancel).ConfigureAwait(true);
if (result == DialogButton.OK)
{
_settingsService.ResetKeyBindings();
Initialize(_settingsService.GetCommandKeyBindings());
}
}
static private string GetFullPathInternal(string path)
{
//-----------------------------------------------------------------
// precondition validation
// should be validated by callers of this method
// NOTE: if this method moves elsewhere, this assert should become an actual runtime check
// as the implicit assumptions here cannot be relied upon in an inter-class context
Debug.Assert(path != null);
// remove leading and trailing whitespace
path = path.Trim();
if (path.Length == 0)
{
throw ADP.Argument(StringsHelper.GetString(StringsHelper.SqlFileStream_InvalidPath), "path");
}
// check for the path length before we normalize it with GetFullPathName
if (path.Length > MaxWin32PathLength)
{
// cannot use PathTooLongException here since our length limit is 32K while
// PathTooLongException error message states that the path should be limited to 260
throw ADP.Argument(StringsHelper.GetString(StringsHelper.SqlFileStream_InvalidPath), "path");
}
// GetFullPathName does not check for invalid characters so we still have to validate them before
if (path.IndexOfAny(InvalidPathChars) >= 0)
{
throw ADP.Argument(StringsHelper.GetString(StringsHelper.SqlFileStream_InvalidPath), "path");
}
// make sure path is a UNC path
if (!path.StartsWith(@"\\", StringComparison.OrdinalIgnoreCase))
{
throw ADP.Argument(StringsHelper.GetString(StringsHelper.SqlFileStream_InvalidPath), "path");
}
//-----------------------------------------------------------------
// normalize the path
path = UnsafeNativeMethods.SafeGetFullPathName(path);
// we do not expect windows API to return invalid paths
Debug.Assert(path.Length <= MaxWin32PathLength, "GetFullPathName returns path longer than max expected!");
// CONSIDER: is this a precondition validation that can be done above? Or must the path be normalized first?
// after normalization, we have to ensure that the path does not attempt to refer to a root device, etc.
if (path.StartsWith(@"\\.\", StringComparison.Ordinal))
{
throw ADP.Argument(StringsHelper.GetString(StringsHelper.SqlFileStream_PathNotValidDiskResource), "path");
}
return(path);
}
internal static string SafeGetFullPathName(string path)
{
Debug.Assert(path != null, "path is null?");
// make sure to test for Int16.MaxValue limit before calling this method
// see the below comment re GetLastWin32Error for the reason
Debug.Assert(path.Length < Int16.MaxValue);
// since we expect network paths, the 'full path' is expected to be the same size
// as the provided one. we still need to allocate +1 for null termination
StringBuilder buffer = new StringBuilder(path.Length + 1);
int cchRequiredSize = GetFullPathName(path, buffer.Capacity, buffer, IntPtr.Zero);
// if our buffer was smaller than required, GetFullPathName will succeed and return us the required buffer size with null
if (cchRequiredSize > buffer.Capacity)
{
// we have to reallocate and retry
buffer.Capacity = cchRequiredSize;
cchRequiredSize = GetFullPathName(path, buffer.Capacity, buffer, IntPtr.Zero);
}
if (cchRequiredSize == 0)
{
// GetFullPathName call failed
int lastError = Marshal.GetLastWin32Error();
if (lastError == 0)
{
// we found that in some cases GetFullPathName fail but does not set the last error value
// for example, it happens when the path provided to it is longer than 32K: return value is 0 (failure)
// but GetLastError was zero too so we raised Win32Exception saying "The operation completed successfully".
// To raise proper "path too long" failure, check the length before calling this API.
// For other (yet unknown cases), we will throw InvalidPath message since we do not know what exactly happened
throw ADP.Argument(StringsHelper.GetString(StringsHelper.SqlFileStream_InvalidPath), "path");
}
else
{
System.ComponentModel.Win32Exception e = new System.ComponentModel.Win32Exception(lastError);
ADP.TraceExceptionAsReturnValue(e);
throw e;
}
}
// this should not happen since we already reallocate
Debug.Assert(cchRequiredSize <= buffer.Capacity, string.Format(
System.Globalization.CultureInfo.InvariantCulture,
"second call to GetFullPathName returned greater size: {0} > {1}",
cchRequiredSize,
buffer.Capacity));
return(buffer.ToString());
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
if (e.Parameter is KeyBindingsPageViewModel viewModel)
{
ViewModel = viewModel;
// Add the commands corresponding to all of the application's static commands
foreach (var value in Enum.GetValues(typeof(Command)))
{
Command command = (Command)value;
AddCommandMenu.Items.Add(new MenuFlyoutItem
{
Text = StringsHelper.GetString(EnumHelper.GetEnumDescription(command)),
Command = ViewModel.AddCommand,
CommandParameter = command.ToString()
});
}
}
}
public XtermTerminalView()
{
InitializeComponent();
StartMediatorTask();
_webView = new WebView(WebViewExecutionMode.SeparateThread)
{
DefaultBackgroundColor = Colors.Transparent
};
Root.Children.Add(_webView);
_webView.NavigationCompleted += _webView_NavigationCompleted;
_webView.NavigationStarting += _webView_NavigationStarting;
_copyMenuItem = new MenuFlyoutItem {
Text = StringsHelper.GetString("Copy")
};
_copyMenuItem.Click += Copy_Click;
_pasteMenuItem = new MenuFlyoutItem {
Text = StringsHelper.GetString("Paste")
};
_pasteMenuItem.Click += Paste_Click;
_webView.ContextFlyout = new MenuFlyout
{
Items = { _copyMenuItem, _pasteMenuItem }
};
_optionsChanged = new DebouncedAction <TerminalOptions>(Dispatcher, TimeSpan.FromMilliseconds(800), async options =>
{
var serialized = JsonConvert.SerializeObject(options);
await ExecuteScriptAsync($"changeOptions('{serialized}')");
});
_navigationCompleted = new SemaphoreSlim(0, 1);
_connectedEvent = new ManualResetEventSlim(false);
_webView.Navigate(new Uri("ms-appx-web:///Client/index.html"));
}
internal static Normalizer GetNormalizer(Type t)
{
Normalizer n = null;
if (t.IsPrimitive)
{
if (t == typeof(byte))
n = new ByteNormalizer();
else if (t == typeof(sbyte))
n = new SByteNormalizer();
else if (t == typeof(bool))
n = new BooleanNormalizer();
else if (t == typeof(short))
n = new ShortNormalizer();
else if (t == typeof(ushort))
n = new UShortNormalizer();
else if (t == typeof(int))
n = new IntNormalizer();
else if (t == typeof(uint))
n = new UIntNormalizer();
else if (t == typeof(float))
n = new FloatNormalizer();
else if (t == typeof(double))
n = new DoubleNormalizer();
else if (t == typeof(long))
n = new LongNormalizer();
else if (t == typeof(ulong))
n = new ULongNormalizer();
}
else if (t.IsValueType)
{
n = new BinaryOrderedUdtNormalizer(t, false);
}
if (n == null)
throw new Exception(StringsHelper.GetString(Strings.SQL_CannotCreateNormalizer, t.FullName));
n._skipNormalize = false;
return n;
}
public SettingsPage()
{
InitializeComponent();
Root.DataContext = this;
var asd = StringsHelper.GetString("Setting");
ApplicationView.GetForCurrentView().Title = StringsHelper.GetString("Setting");
CoreApplicationViewTitleBar coreTitleBar = CoreApplication.GetCurrentView().TitleBar;
coreTitleBar.LayoutMetricsChanged += TitleBar_LayoutMetricsChanged;
CoreTitleBarHeight = coreTitleBar.Height;
_titleBar = ApplicationView.GetForCurrentView().TitleBar;
_dispatcher = Window.Current.Dispatcher;
SetTitleBarColors();
_uiSettings = new UISettings();
_uiSettings.ColorValuesChanged += OnColorValuesChanged;
SystemNavigationManagerPreview.GetForCurrentView().CloseRequested += SettingsPage_CloseRequested;
hiddenNavigationItem = new NavigationViewItem();
}
private void DontDoIt()
{
throw new Exception(StringsHelper.GetString(Strings.Sql_InternalError));
}
private unsafe void OpenSqlFileStream
(
string sPath,
byte[] transactionContext,
System.IO.FileAccess access,
System.IO.FileOptions options,
long allocationSize
)
{
//-----------------------------------------------------------------
// precondition validation
// these should be checked by any caller of this method
// ensure we have validated and normalized the path before
Debug.Assert(sPath != null);
Debug.Assert(transactionContext != null);
if (access != System.IO.FileAccess.Read && access != System.IO.FileAccess.Write && access != System.IO.FileAccess.ReadWrite)
{
throw ADP.ArgumentOutOfRange("access");
}
// FileOptions is a set of flags, so AND the given value against the set of values we do not support
if ((options & ~(System.IO.FileOptions.WriteThrough | System.IO.FileOptions.Asynchronous | System.IO.FileOptions.RandomAccess | System.IO.FileOptions.SequentialScan)) != 0)
{
throw ADP.ArgumentOutOfRange("options");
}
//-----------------------------------------------------------------
// normalize the provided path
// * compress path to remove any occurrences of '.' or '..'
// * trim whitespace from the beginning and end of the path
// * ensure that the path starts with '\\'
// * ensure that the path does not start with '\\.\'
sPath = GetFullPathInternal(sPath);
Microsoft.Win32.SafeHandles.SafeFileHandle hFile = null;
Interop.NtDll.DesiredAccess nDesiredAccess = Interop.NtDll.DesiredAccess.FILE_READ_ATTRIBUTES | Interop.NtDll.DesiredAccess.SYNCHRONIZE;
Interop.NtDll.CreateOptions dwCreateOptions = 0;
Interop.NtDll.CreateDisposition dwCreateDisposition = 0;
System.IO.FileShare nShareAccess = System.IO.FileShare.None;
switch (access)
{
case System.IO.FileAccess.Read:
nDesiredAccess |= Interop.NtDll.DesiredAccess.FILE_READ_DATA;
nShareAccess = System.IO.FileShare.Delete | System.IO.FileShare.ReadWrite;
dwCreateDisposition = Interop.NtDll.CreateDisposition.FILE_OPEN;
break;
case System.IO.FileAccess.Write:
nDesiredAccess |= Interop.NtDll.DesiredAccess.FILE_WRITE_DATA;
nShareAccess = System.IO.FileShare.Delete | System.IO.FileShare.Read;
dwCreateDisposition = Interop.NtDll.CreateDisposition.FILE_OVERWRITE;
break;
case System.IO.FileAccess.ReadWrite:
default:
// we validate the value of 'access' parameter in the beginning of this method
Debug.Assert(access == System.IO.FileAccess.ReadWrite);
nDesiredAccess |= Interop.NtDll.DesiredAccess.FILE_READ_DATA | Interop.NtDll.DesiredAccess.FILE_WRITE_DATA;
nShareAccess = System.IO.FileShare.Delete | System.IO.FileShare.Read;
dwCreateDisposition = Interop.NtDll.CreateDisposition.FILE_OVERWRITE;
break;
}
if ((options & System.IO.FileOptions.WriteThrough) != 0)
{
dwCreateOptions |= Interop.NtDll.CreateOptions.FILE_WRITE_THROUGH;
}
if ((options & System.IO.FileOptions.Asynchronous) == 0)
{
dwCreateOptions |= Interop.NtDll.CreateOptions.FILE_SYNCHRONOUS_IO_NONALERT;
}
if ((options & System.IO.FileOptions.SequentialScan) != 0)
{
dwCreateOptions |= Interop.NtDll.CreateOptions.FILE_SEQUENTIAL_ONLY;
}
if ((options & System.IO.FileOptions.RandomAccess) != 0)
{
dwCreateOptions |= Interop.NtDll.CreateOptions.FILE_RANDOM_ACCESS;
}
try
{
// NOTE: the Name property is intended to reveal the publicly available moniker for the
// FILESTREAM attributed column data. We will not surface the internal processing that
// takes place to create the mappedPath.
string mappedPath = InitializeNtPath(sPath);
int retval = 0;
Interop.Kernel32.SetThreadErrorMode(Interop.Kernel32.SEM_FAILCRITICALERRORS, out uint oldMode);
try
{
if (transactionContext.Length >= ushort.MaxValue)
{
throw ADP.ArgumentOutOfRange("transactionContext");
}
int headerSize = sizeof(Interop.NtDll.FILE_FULL_EA_INFORMATION);
int fullSize = headerSize + transactionContext.Length + s_eaNameString.Length;
byte[] buffer = ArrayPool <byte> .Shared.Rent(fullSize);
fixed(byte *b = buffer)
{
Interop.NtDll.FILE_FULL_EA_INFORMATION *ea = (Interop.NtDll.FILE_FULL_EA_INFORMATION *)b;
ea->NextEntryOffset = 0;
ea->Flags = 0;
ea->EaNameLength = (byte)(s_eaNameString.Length - 1); // Length does not include terminating null character.
ea->EaValueLength = (ushort)transactionContext.Length;
// We could continue to do pointer math here, chose to use Span for convenience to
// make sure we get the other members in the right place.
Span <byte> data = buffer.AsSpan(headerSize);
s_eaNameString.AsSpan().CopyTo(data);
data = data.Slice(s_eaNameString.Length);
transactionContext.AsSpan().CopyTo(data);
(int status, IntPtr handle) = Interop.NtDll.CreateFile(path: mappedPath.AsSpan(),
rootDirectory: IntPtr.Zero,
createDisposition: dwCreateDisposition,
desiredAccess: nDesiredAccess,
shareAccess: nShareAccess,
fileAttributes: 0,
createOptions: dwCreateOptions,
eaBuffer: b,
eaLength: (uint)fullSize);
SqlClientEventSource.Log.TryAdvancedTraceEvent("SqlFileStream.OpenSqlFileStream | ADV | Object Id {0}, Desired Access 0x{1}, Allocation Size {2}, File Attributes 0, Share Access 0x{3}, Create Disposition 0x{4}, Create Options 0x{5}", ObjectID, (int)nDesiredAccess, allocationSize, (int)nShareAccess, dwCreateDisposition, dwCreateOptions);
retval = status;
hFile = new SafeFileHandle(handle, true);
}
ArrayPool <byte> .Shared.Return(buffer);
}
finally
{
Interop.Kernel32.SetThreadErrorMode(oldMode, out oldMode);
}
switch (retval)
{
case 0:
break;
case Interop.Errors.ERROR_SHARING_VIOLATION:
throw ADP.InvalidOperation(StringsHelper.GetString(Strings.SqlFileStream_FileAlreadyInTransaction));
case Interop.Errors.ERROR_INVALID_PARAMETER:
throw ADP.Argument(StringsHelper.GetString(Strings.SqlFileStream_InvalidParameter));
case Interop.Errors.ERROR_FILE_NOT_FOUND:
{
System.IO.DirectoryNotFoundException e = new System.IO.DirectoryNotFoundException();
ADP.TraceExceptionAsReturnValue(e);
throw e;
}
default:
{
uint error = Interop.NtDll.RtlNtStatusToDosError(retval);
if (error == ERROR_MR_MID_NOT_FOUND)
{
// status code could not be mapped to a Win32 error code
error = (uint)retval;
}
System.ComponentModel.Win32Exception e = new System.ComponentModel.Win32Exception(unchecked ((int)error));
ADP.TraceExceptionAsReturnValue(e);
throw e;
}
}
if (hFile.IsInvalid)
{
System.ComponentModel.Win32Exception e = new System.ComponentModel.Win32Exception(Interop.Errors.ERROR_INVALID_HANDLE);
ADP.TraceExceptionAsReturnValue(e);
throw e;
}
if (Interop.Kernel32.GetFileType(hFile) != Interop.Kernel32.FileTypes.FILE_TYPE_DISK)
{
hFile.Dispose();
throw ADP.Argument(StringsHelper.GetString(Strings.SqlFileStream_PathNotValidDiskResource));
}
// if the user is opening the SQL FileStream in read/write mode, we assume that they want to scan
// through current data and then append new data to the end, so we need to tell SQL Server to preserve
// the existing file contents.
if (access == System.IO.FileAccess.ReadWrite)
{
uint ioControlCode = Interop.Kernel32.CTL_CODE(FILE_DEVICE_FILE_SYSTEM,
IoControlCodeFunctionCode, (byte)Interop.Kernel32.IoControlTransferType.METHOD_BUFFERED,
(byte)Interop.Kernel32.IoControlCodeAccess.FILE_ANY_ACCESS);
if (!Interop.Kernel32.DeviceIoControl(hFile, ioControlCode, IntPtr.Zero, 0, IntPtr.Zero, 0, out uint cbBytesReturned, IntPtr.Zero))
{
System.ComponentModel.Win32Exception e = new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error());
ADP.TraceExceptionAsReturnValue(e);
throw e;
}
}
// now that we've successfully opened a handle on the path and verified that it is a file,
// use the SafeFileHandle to initialize our internal System.IO.FileStream instance
System.Diagnostics.Debug.Assert(_m_fs == null);
_m_fs = new System.IO.FileStream(hFile, access, DefaultBufferSize, ((options & System.IO.FileOptions.Asynchronous) != 0));
}
catch
{
if (hFile != null && !hFile.IsInvalid)
{
hFile.Dispose();
}
throw;
}
}
/// <summary>
/// Retrieves a DataTable containing information about all visible SQL Server instances
/// </summary>
/// <returns></returns>
internal static DataTable GetDataSources()
{
(new NamedPermissionSet("FullTrust")).Demand(); // SQLBUDT 244304
char[] buffer = null;
StringBuilder strbldr = new();
int bufferSize = 1024;
int readLength = 0;
buffer = new char[bufferSize];
bool more = true;
bool failure = false;
IntPtr handle = ADP.s_ptrZero;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
long s_timeoutTime = TdsParserStaticMethods.GetTimeoutSeconds(ADP.DefaultCommandTimeout);
RuntimeHelpers.PrepareConstrainedRegions();
try
{ }
finally
{
handle = SNINativeMethodWrapper.SNIServerEnumOpen();
SqlClientEventSource.Log.TryTraceEvent("<sc.{0}.{1}|INFO> {2} returned handle = {3}.",
nameof(SqlDataSourceEnumeratorNativeHelper),
nameof(GetDataSources),
nameof(SNINativeMethodWrapper.SNIServerEnumOpen), handle);
}
if (handle != ADP.s_ptrZero)
{
while (more && !TdsParserStaticMethods.TimeoutHasExpired(s_timeoutTime))
{
readLength = SNINativeMethodWrapper.SNIServerEnumRead(handle, buffer, bufferSize, out more);
SqlClientEventSource.Log.TryTraceEvent("<sc.{0}.{1}|INFO> {2} returned 'readlength':{3}, and 'more':{4} with 'bufferSize' of {5}",
nameof(SqlDataSourceEnumeratorNativeHelper),
nameof(GetDataSources),
nameof(SNINativeMethodWrapper.SNIServerEnumRead),
readLength, more, bufferSize);
if (readLength > bufferSize)
{
failure = true;
more = false;
}
else if (readLength > 0)
{
strbldr.Append(buffer, 0, readLength);
}
}
}
}
finally
{
if (handle != ADP.s_ptrZero)
{
SNINativeMethodWrapper.SNIServerEnumClose(handle);
SqlClientEventSource.Log.TryTraceEvent("<sc.{0}.{1}|INFO> {2} called.",
nameof(SqlDataSourceEnumeratorNativeHelper),
nameof(GetDataSources),
nameof(SNINativeMethodWrapper.SNIServerEnumClose));
}
}
if (failure)
{
Debug.Assert(false, $"{nameof(GetDataSources)}:{nameof(SNINativeMethodWrapper.SNIServerEnumRead)} returned bad length");
SqlClientEventSource.Log.TryTraceEvent("<sc.{0}.{1}|ERR> {2} returned bad length, requested buffer {3}, received {4}",
nameof(SqlDataSourceEnumeratorNativeHelper),
nameof(GetDataSources),
nameof(SNINativeMethodWrapper.SNIServerEnumRead),
bufferSize, readLength);
throw ADP.ArgumentOutOfRange(StringsHelper.GetString(Strings.ADP_ParameterValueOutOfRange, readLength), nameof(readLength));
}
return(ParseServerEnumString(strbldr.ToString()));
}
internal static ArgumentOutOfRangeException InvalidMinAndMaxPair(string minParamName, TimeSpan minValue, string maxParamName, TimeSpan maxValue) => new ArgumentOutOfRangeException(minParamName, StringsHelper.GetString(Strings.SqlRetryLogic_InvalidMinMaxPair, minValue, maxValue, minParamName, maxParamName));
internal static ArgumentOutOfRangeException ArgumentOutOfRange(string paramName, TimeSpan value, TimeSpan minValue, TimeSpan MaxValue) => new ArgumentOutOfRangeException(paramName, StringsHelper.GetString(Strings.SqlRetryLogic_InvalidRange, value, minValue, MaxValue));
internal static AggregateException ConfigurableRetryFail(IList <Exception> exceptions, SqlRetryLogicBase retryLogic, bool canceled)
=> canceled ? new AggregateException(StringsHelper.GetString(Strings.SqlRetryLogic_RetryCanceled, retryLogic.Current), exceptions)
: new AggregateException(StringsHelper.GetString(Strings.SqlRetryLogic_RetryExceeded, retryLogic.NumberOfTries), exceptions);
private void OpenSqlFileStream
(
string path,
byte[] transactionContext,
System.IO.FileAccess access,
System.IO.FileOptions options,
Int64 allocationSize
)
{
//-----------------------------------------------------------------
// precondition validation
// these should be checked by any caller of this method
// ensure we have validated and normalized the path before
Debug.Assert(path != null);
Debug.Assert(transactionContext != null);
if (access != FileAccess.Read && access != FileAccess.Write && access != FileAccess.ReadWrite)
{
throw ADP.ArgumentOutOfRange("access");
}
// FileOptions is a set of flags, so AND the given value against the set of values we do not support
if ((options & ~(FileOptions.WriteThrough | FileOptions.Asynchronous | FileOptions.RandomAccess | FileOptions.SequentialScan)) != 0)
{
throw ADP.ArgumentOutOfRange("options");
}
//-----------------------------------------------------------------
// normalize the provided path
// * compress path to remove any occurrences of '.' or '..'
// * trim whitespace from the beginning and end of the path
// * ensure that the path starts with '\\'
// * ensure that the path does not start with '\\.\'
// * ensure that the path is not longer than Int16.MaxValue
path = GetFullPathInternal(path);
// ensure the running code has permission to read/write the file
DemandAccessPermission(path, access);
FileFullEaInformation eaBuffer = null;
SecurityQualityOfService qos = null;
UnicodeString objectName = null;
Microsoft.Win32.SafeHandles.SafeFileHandle hFile = null;
int nDesiredAccess = UnsafeNativeMethods.FILE_READ_ATTRIBUTES | UnsafeNativeMethods.SYNCHRONIZE;
UInt32 dwCreateOptions = 0;
UInt32 dwCreateDisposition = 0;
System.IO.FileShare shareAccess = System.IO.FileShare.None;
switch (access)
{
case System.IO.FileAccess.Read:
nDesiredAccess |= UnsafeNativeMethods.FILE_READ_DATA;
shareAccess = System.IO.FileShare.Delete | System.IO.FileShare.ReadWrite;
dwCreateDisposition = (uint)UnsafeNativeMethods.CreationDisposition.FILE_OPEN;
break;
case System.IO.FileAccess.Write:
nDesiredAccess |= UnsafeNativeMethods.FILE_WRITE_DATA;
shareAccess = System.IO.FileShare.Delete | System.IO.FileShare.Read;
dwCreateDisposition = (uint)UnsafeNativeMethods.CreationDisposition.FILE_OVERWRITE;
break;
case System.IO.FileAccess.ReadWrite:
default:
// we validate the value of 'access' parameter in the beginning of this method
Debug.Assert(access == System.IO.FileAccess.ReadWrite);
nDesiredAccess |= UnsafeNativeMethods.FILE_READ_DATA | UnsafeNativeMethods.FILE_WRITE_DATA;
shareAccess = System.IO.FileShare.Delete | System.IO.FileShare.Read;
dwCreateDisposition = (uint)UnsafeNativeMethods.CreationDisposition.FILE_OVERWRITE;
break;
}
if ((options & System.IO.FileOptions.WriteThrough) != 0)
{
dwCreateOptions |= (uint)UnsafeNativeMethods.CreateOption.FILE_WRITE_THROUGH;
}
if ((options & System.IO.FileOptions.Asynchronous) == 0)
{
dwCreateOptions |= (uint)UnsafeNativeMethods.CreateOption.FILE_SYNCHRONOUS_IO_NONALERT;
}
if ((options & System.IO.FileOptions.SequentialScan) != 0)
{
dwCreateOptions |= (uint)UnsafeNativeMethods.CreateOption.FILE_SEQUENTIAL_ONLY;
}
if ((options & System.IO.FileOptions.RandomAccess) != 0)
{
dwCreateOptions |= (uint)UnsafeNativeMethods.CreateOption.FILE_RANDOM_ACCESS;
}
try
{
eaBuffer = new FileFullEaInformation(transactionContext);
qos = new SecurityQualityOfService(UnsafeNativeMethods.SecurityImpersonationLevel.SecurityAnonymous,
false, false);
// NOTE: the Name property is intended to reveal the publicly available moniker for the
// FILESTREAM attributed column data. We will not surface the internal processing that
// takes place to create the mappedPath.
string mappedPath = InitializeNtPath(path);
objectName = new UnicodeString(mappedPath);
UnsafeNativeMethods.OBJECT_ATTRIBUTES oa;
oa.length = Marshal.SizeOf(typeof(UnsafeNativeMethods.OBJECT_ATTRIBUTES));
oa.rootDirectory = IntPtr.Zero;
oa.attributes = (int)UnsafeNativeMethods.Attributes.CaseInsensitive;
oa.securityDescriptor = IntPtr.Zero;
oa.securityQualityOfService = qos;
oa.objectName = objectName;
UnsafeNativeMethods.IO_STATUS_BLOCK ioStatusBlock;
uint oldMode;
uint retval = 0;
UnsafeNativeMethods.SetErrorModeWrapper(UnsafeNativeMethods.SEM_FAILCRITICALERRORS, out oldMode);
try
{
SqlClientEventSource.Log.TryAdvancedTraceEvent("<sc.SqlFileStream.OpenSqlFileStream|ADV> {0}, desiredAccess=0x{1}, allocationSize={2}, " +
"fileAttributes=0x{3}, shareAccess=0x{4}, dwCreateDisposition=0x{5}, createOptions=0x{ dwCreateOptions}", ObjectID, (int)nDesiredAccess, allocationSize, 0, (int)shareAccess, dwCreateDisposition);
retval = UnsafeNativeMethods.NtCreateFile(out hFile, nDesiredAccess,
ref oa, out ioStatusBlock, ref allocationSize,
0, shareAccess, dwCreateDisposition, dwCreateOptions,
eaBuffer, (uint)eaBuffer.Length);
}
finally
{
UnsafeNativeMethods.SetErrorModeWrapper(oldMode, out oldMode);
}
switch (retval)
{
case 0:
break;
case UnsafeNativeMethods.STATUS_SHARING_VIOLATION:
throw ADP.InvalidOperation(StringsHelper.GetString(StringsHelper.SqlFileStream_FileAlreadyInTransaction));
case UnsafeNativeMethods.STATUS_INVALID_PARAMETER:
throw ADP.Argument(StringsHelper.GetString(StringsHelper.SqlFileStream_InvalidParameter));
case UnsafeNativeMethods.STATUS_OBJECT_NAME_NOT_FOUND:
{
System.IO.DirectoryNotFoundException e = new System.IO.DirectoryNotFoundException();
ADP.TraceExceptionAsReturnValue(e);
throw e;
}
default:
{
uint error = UnsafeNativeMethods.RtlNtStatusToDosError(retval);
if (error == UnsafeNativeMethods.ERROR_MR_MID_NOT_FOUND)
{
// status code could not be mapped to a Win32 error code
error = retval;
}
System.ComponentModel.Win32Exception e = new System.ComponentModel.Win32Exception(unchecked ((int)error));
ADP.TraceExceptionAsReturnValue(e);
throw e;
}
}
if (hFile.IsInvalid)
{
System.ComponentModel.Win32Exception e = new System.ComponentModel.Win32Exception(UnsafeNativeMethods.ERROR_INVALID_HANDLE);
ADP.TraceExceptionAsReturnValue(e);
throw e;
}
UnsafeNativeMethods.FileType fileType = UnsafeNativeMethods.GetFileType(hFile);
if (fileType != UnsafeNativeMethods.FileType.Disk)
{
hFile.Dispose();
throw ADP.Argument(StringsHelper.GetString(StringsHelper.SqlFileStream_PathNotValidDiskResource));
}
// if the user is opening the SQL FileStream in read/write mode, we assume that they want to scan
// through current data and then append new data to the end, so we need to tell SQL Server to preserve
// the existing file contents.
if (access == System.IO.FileAccess.ReadWrite)
{
uint ioControlCode = UnsafeNativeMethods.CTL_CODE(UnsafeNativeMethods.FILE_DEVICE_FILE_SYSTEM,
IoControlCodeFunctionCode, (byte)UnsafeNativeMethods.Method.METHOD_BUFFERED,
(byte)UnsafeNativeMethods.Access.FILE_ANY_ACCESS);
uint cbBytesReturned = 0;
if (!UnsafeNativeMethods.DeviceIoControl(hFile, ioControlCode, IntPtr.Zero, 0, IntPtr.Zero, 0, out cbBytesReturned, IntPtr.Zero))
{
System.ComponentModel.Win32Exception e = new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error());
ADP.TraceExceptionAsReturnValue(e);
throw e;
}
}
// now that we've successfully opened a handle on the path and verified that it is a file,
// use the SafeFileHandle to initialize our internal System.IO.FileStream instance
// NOTE: need to assert UnmanagedCode permissions for this constructor. This is relatively benign
// in that we've done much the same validation as in the FileStream(string path, ...) ctor case
// most notably, validating that the handle type corresponds to an on-disk file.
bool bRevertAssert = false;
try
{
SecurityPermission sp = new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
sp.Assert();
bRevertAssert = true;
System.Diagnostics.Debug.Assert(m_fs == null);
m_fs = new System.IO.FileStream(hFile, access, DefaultBufferSize, ((options & System.IO.FileOptions.Asynchronous) != 0));
}
finally
{
if (bRevertAssert)
{
SecurityPermission.RevertAssert();
}
}
}
catch
{
if (hFile != null && !hFile.IsInvalid)
{
hFile.Dispose();
}
throw;
}
finally
{
if (eaBuffer != null)
{
eaBuffer.Dispose();
eaBuffer = null;
}
if (qos != null)
{
qos.Dispose();
qos = null;
}
if (objectName != null)
{
objectName.Dispose();
objectName = null;
}
}
}
public InputDialog()
{
this.InitializeComponent();
this.PrimaryButtonText = StringsHelper.GetString("OK");
this.CloseButtonText = StringsHelper.GetString("Cancel");
}
private void Initialize(IDictionary <string, ICollection <KeyBinding> > keyBindings)
{
_keyBindings = keyBindings;
ClearKeyBindings();
foreach (var value in Enum.GetValues(typeof(Command)))
{
var command = (Command)value;
var viewModel = new KeyBindingsViewModel(command.ToString(), _dialogService, StringsHelper.GetString(EnumHelper.GetEnumDescription(command)), true);
foreach (var keyBinding in _keyBindings[command.ToString()])
{
viewModel.Add(keyBinding);
}
viewModel.Edited += OnEdited;
KeyBindings.Add(viewModel);
}
}