Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Net / System / Net / Mail / SevenBitStream.cs / 1305376 / SevenBitStream.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Net.Mime { using System; using System.IO; using System.Text; ////// This stream validates outgoing bytes to be within the /// acceptible range of 0 - 127. Writes will throw if a /// value > 127 is found. /// internal class SevenBitStream : DelegatedStream, IEncodableStream { ////// ctor. /// /// Underlying stream internal SevenBitStream(Stream stream) : base(stream) { } ////// Writes the specified content to the underlying stream /// /// Buffer to write /// Offset within buffer to start writing /// Count of bytes to write /// Callback to call when write completes /// State to pass to callback public override IAsyncResult BeginWrite(byte[] buffer, int offset, int count, AsyncCallback callback, object state) { if (buffer == null) throw new ArgumentNullException("buffer"); if (offset < 0 || offset >= buffer.Length) throw new ArgumentOutOfRangeException("offset"); if (offset + count > buffer.Length) throw new ArgumentOutOfRangeException("count"); CheckBytes(buffer, offset, count); IAsyncResult result = base.BeginWrite(buffer, offset, count, callback, state); return result; } ////// Writes the specified content to the underlying stream /// /// Buffer to write /// Offset within buffer to start writing /// Count of bytes to write public override void Write(byte[] buffer, int offset, int count) { if (buffer == null) throw new ArgumentNullException("buffer"); if (offset < 0 || offset >= buffer.Length) throw new ArgumentOutOfRangeException("offset"); if (offset + count > buffer.Length) throw new ArgumentOutOfRangeException("count"); CheckBytes(buffer, offset, count); base.Write(buffer, offset, count); } // helper methods ////// Checks the data in the buffer for bytes > 127. /// /// Buffer containing data /// Offset within buffer to start checking /// Count of bytes to check void CheckBytes(byte[] buffer, int offset, int count) { for (int i = count; i < offset + count; i++) { if (buffer[i] > 127) throw new FormatException(SR.GetString(SR.Mail7BitStreamInvalidCharacter)); } } public int DecodeBytes(byte[] buffer, int offset, int count) { throw new NotImplementedException(); } //nothing to "encode" here so all we're actually doing is folding public int EncodeBytes(byte[] buffer, int offset, int count) { throw new NotImplementedException(); } public Stream GetStream() { return this; } public string GetEncodedString() { throw new NotImplementedException(); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SolidBrush.cs
- ProfileGroupSettings.cs
- assemblycache.cs
- UseAttributeSetsAction.cs
- _NestedSingleAsyncResult.cs
- MultitargetUtil.cs
- WebEventTraceProvider.cs
- TrackBarRenderer.cs
- TimelineCollection.cs
- ListViewSelectEventArgs.cs
- FlatButtonAppearance.cs
- ConstNode.cs
- XmlSchemaGroup.cs
- WebConfigurationManager.cs
- ArrayElementGridEntry.cs
- PrincipalPermission.cs
- SqlMethodAttribute.cs
- ValidatingCollection.cs
- AccessControlEntry.cs
- CodeSubDirectoriesCollection.cs
- CheckedListBox.cs
- SessionStateSection.cs
- DataGridSortCommandEventArgs.cs
- ManagementObjectCollection.cs
- CompilationLock.cs
- GatewayDefinition.cs
- CacheOutputQuery.cs
- SafeEventHandle.cs
- RadioButtonStandardAdapter.cs
- PreProcessInputEventArgs.cs
- SQLByteStorage.cs
- EventManager.cs
- HttpCacheVary.cs
- DrawingGroup.cs
- TimeoutValidationAttribute.cs
- _Rfc2616CacheValidators.cs
- TextTreeInsertElementUndoUnit.cs
- UInt64.cs
- SafeNativeMethodsOther.cs
- DiagnosticTrace.cs
- TextTreeFixupNode.cs
- DerivedKeySecurityToken.cs
- BamlBinaryReader.cs
- HtmlToClrEventProxy.cs
- COMException.cs
- ControlParser.cs
- ComponentResourceKeyConverter.cs
- Timeline.cs
- BinarySerializer.cs
- WeakEventManager.cs
- PropertyContainer.cs
- RecordManager.cs
- RevocationPoint.cs
- BadImageFormatException.cs
- NotFiniteNumberException.cs
- HtmlInputReset.cs
- ParserStreamGeometryContext.cs
- Normalizer.cs
- IgnoreDeviceFilterElementCollection.cs
- AttachedAnnotationChangedEventArgs.cs
- Size3D.cs
- Attributes.cs
- ComplexTypeEmitter.cs
- MediaElement.cs
- StoreContentChangedEventArgs.cs
- LoginCancelEventArgs.cs
- FieldDescriptor.cs
- CodePropertyReferenceExpression.cs
- PenThreadPool.cs
- BlockExpression.cs
- LinqDataSourceHelper.cs
- TreeViewDataItemAutomationPeer.cs
- FontInfo.cs
- DetailsViewDeleteEventArgs.cs
- UpdateRecord.cs
- CodePrimitiveExpression.cs
- HMAC.cs
- Int16KeyFrameCollection.cs
- CodeMethodInvokeExpression.cs
- Interlocked.cs
- SHA384.cs
- DbConnectionHelper.cs
- ProtocolsConfigurationEntry.cs
- HtmlControlPersistable.cs
- SectionRecord.cs
- DocumentScope.cs
- ConfigurationStrings.cs
- WorkflowRuntimeService.cs
- PocoPropertyAccessorStrategy.cs
- PropertyInfoSet.cs
- HostProtectionPermission.cs
- MenuItemBindingCollection.cs
- VBCodeProvider.cs
- LayoutTable.cs
- FilterQueryOptionExpression.cs
- HtmlInputReset.cs
- TypeSystem.cs
- StickyNote.cs
- CodeAttributeDeclaration.cs
- ManagementScope.cs