Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Net / System / Net / Mail / MimeBasePart.cs / 1 / MimeBasePart.cs
using System; using System.Collections.Specialized; using System.IO; using System.Text; using System.Net.Mail; namespace System.Net.Mime { internal class MimeBasePart { protected ContentType contentType; protected ContentDisposition contentDisposition; HeaderCollection headers; internal const string defaultCharSet = "utf-8";//"iso-8859-1"; internal MimeBasePart() { } internal static bool ShouldUseBase64Encoding(Encoding encoding){ if (encoding == Encoding.Unicode || encoding == Encoding.UTF8 || encoding == Encoding.UTF32 || encoding == Encoding.BigEndianUnicode) { return true; } return false; } internal static string EncodeHeaderValue(string value, Encoding encoding, bool base64Encoding) { StringBuilder newString = new StringBuilder(); if (encoding == null && IsAscii(value,false)) { return value; } if (encoding == null) { encoding = Encoding.GetEncoding(MimeBasePart.defaultCharSet); } string encodingName = encoding.BodyName; if(encoding == Encoding.BigEndianUnicode){ encodingName = "utf-16be"; } newString.Append("=?"); newString.Append(encodingName); newString.Append("?"); newString.Append(base64Encoding ? "B" : "Q"); newString.Append("?"); byte[] buffer = encoding.GetBytes(value); if (base64Encoding) { Base64Stream s = new Base64Stream(-1); s.EncodeBytes(buffer, 0, buffer.Length, true); newString.Append(ASCIIEncoding.ASCII.GetString(s.WriteState.Buffer, 0, s.WriteState.Length)); } else { QuotedPrintableStream s = new QuotedPrintableStream(-1); s.EncodeBytes(buffer, 0, buffer.Length); newString.Append(ASCIIEncoding.ASCII.GetString(s.WriteState.Buffer, 0, s.WriteState.Length)); } newString.Append("?="); return newString.ToString(); } internal static string DecodeHeaderValue(string value) { if(value == null || value.Length == 0){ return String.Empty; } string[] subStrings = value.Split('?'); if ((subStrings.Length != 5 || subStrings[0] != "=" || subStrings[4] != "=")) { return value; } string charSet = subStrings[1]; bool base64Encoding = (subStrings[2] == "B"); byte[] buffer = ASCIIEncoding.ASCII.GetBytes(subStrings[3]); int newLength; if (base64Encoding) { Base64Stream s = new Base64Stream(); newLength = s.DecodeBytes(buffer, 0, buffer.Length); } else { QuotedPrintableStream s = new QuotedPrintableStream(); newLength = s.DecodeBytes(buffer, 0, buffer.Length); } Encoding encoding = Encoding.GetEncoding(charSet); string newValue = encoding.GetString(buffer, 0, newLength); return newValue; } internal static Encoding DecodeEncoding(string value) { if(value == null || value.Length == 0){ return null; } string[] subStrings = value.Split('?'); if ((subStrings.Length != 5 || subStrings[0] != "=" || subStrings[4] != "=")) { return null; } string charSet = subStrings[1]; return Encoding.GetEncoding(charSet); } internal static bool IsAscii(string value, bool permitCROrLF) { if (value == null) throw new ArgumentNullException("value"); foreach (char c in value) { if ((int)c > 0x7f) { return false; } if (!permitCROrLF && (c=='\r' || c=='\n')) { return false; } } return true; } internal static bool IsAnsi(string value, bool permitCROrLF) { if (value == null) throw new ArgumentNullException("value"); foreach (char c in value) { if ((int)c > 0xff) { return false; } if (!permitCROrLF && (c=='\r' || c=='\n')) { return false; } } return true; } /* // Consider removing. internal string ContentDescription { get { return Headers[MimePartHeaderNames.ContentDescription]; } set { if (value == null) throw new ArgumentNullException("value"); Headers[MimePartHeaderNames.ContentDescription] = value; } } */ internal string ContentID { get { return Headers[MailHeaderInfo.GetString(MailHeaderID.ContentID)]; } set { if (string.IsNullOrEmpty(value)) { Headers.Remove(MailHeaderInfo.GetString(MailHeaderID.ContentID)); } else { Headers[MailHeaderInfo.GetString(MailHeaderID.ContentID)] = value; } } } internal string ContentLocation { get { return Headers[MailHeaderInfo.GetString(MailHeaderID.ContentLocation)]; } set { if (string.IsNullOrEmpty(value)) { Headers.Remove(MailHeaderInfo.GetString(MailHeaderID.ContentLocation)); } else { Headers[MailHeaderInfo.GetString(MailHeaderID.ContentLocation)] = value; } } } internal NameValueCollection Headers { get { //persist existing info before returning if (headers == null) headers = new HeaderCollection(); if (contentType == null){ contentType = new ContentType(); } contentType.PersistIfNeeded(headers,false); if (contentDisposition != null) contentDisposition.PersistIfNeeded(headers,false); return headers; } } internal ContentType ContentType{ get{ if (contentType == null){ contentType = new ContentType(); } return contentType; } set { if (value == null) throw new ArgumentNullException("value"); contentType = value; contentType.PersistIfNeeded((HeaderCollection)Headers,true); } } internal virtual void Send(BaseWriter writer) { throw new NotImplementedException(); } internal virtual IAsyncResult BeginSend(BaseWriter writer, AsyncCallback callback, object state) { throw new NotImplementedException(); } internal void EndSend(IAsyncResult asyncResult) { if (asyncResult == null) { throw new ArgumentNullException("asyncResult"); } LazyAsyncResult castedAsyncResult = asyncResult as MimePartAsyncResult; if (castedAsyncResult == null || castedAsyncResult.AsyncObject != this) { throw new ArgumentException(SR.GetString(SR.net_io_invalidasyncresult), "asyncResult"); } if (castedAsyncResult.EndCalled) { throw new InvalidOperationException(SR.GetString(SR.net_io_invalidendcall, "EndSend")); } castedAsyncResult.InternalWaitForCompletion(); castedAsyncResult.EndCalled = true; if (castedAsyncResult.Result is Exception) { throw (Exception)castedAsyncResult.Result; } } internal class MimePartAsyncResult: LazyAsyncResult { internal MimePartAsyncResult(MimeBasePart part, object state, AsyncCallback callback):base(part,state,callback) { } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.Collections.Specialized; using System.IO; using System.Text; using System.Net.Mail; namespace System.Net.Mime { internal class MimeBasePart { protected ContentType contentType; protected ContentDisposition contentDisposition; HeaderCollection headers; internal const string defaultCharSet = "utf-8";//"iso-8859-1"; internal MimeBasePart() { } internal static bool ShouldUseBase64Encoding(Encoding encoding){ if (encoding == Encoding.Unicode || encoding == Encoding.UTF8 || encoding == Encoding.UTF32 || encoding == Encoding.BigEndianUnicode) { return true; } return false; } internal static string EncodeHeaderValue(string value, Encoding encoding, bool base64Encoding) { StringBuilder newString = new StringBuilder(); if (encoding == null && IsAscii(value,false)) { return value; } if (encoding == null) { encoding = Encoding.GetEncoding(MimeBasePart.defaultCharSet); } string encodingName = encoding.BodyName; if(encoding == Encoding.BigEndianUnicode){ encodingName = "utf-16be"; } newString.Append("=?"); newString.Append(encodingName); newString.Append("?"); newString.Append(base64Encoding ? "B" : "Q"); newString.Append("?"); byte[] buffer = encoding.GetBytes(value); if (base64Encoding) { Base64Stream s = new Base64Stream(-1); s.EncodeBytes(buffer, 0, buffer.Length, true); newString.Append(ASCIIEncoding.ASCII.GetString(s.WriteState.Buffer, 0, s.WriteState.Length)); } else { QuotedPrintableStream s = new QuotedPrintableStream(-1); s.EncodeBytes(buffer, 0, buffer.Length); newString.Append(ASCIIEncoding.ASCII.GetString(s.WriteState.Buffer, 0, s.WriteState.Length)); } newString.Append("?="); return newString.ToString(); } internal static string DecodeHeaderValue(string value) { if(value == null || value.Length == 0){ return String.Empty; } string[] subStrings = value.Split('?'); if ((subStrings.Length != 5 || subStrings[0] != "=" || subStrings[4] != "=")) { return value; } string charSet = subStrings[1]; bool base64Encoding = (subStrings[2] == "B"); byte[] buffer = ASCIIEncoding.ASCII.GetBytes(subStrings[3]); int newLength; if (base64Encoding) { Base64Stream s = new Base64Stream(); newLength = s.DecodeBytes(buffer, 0, buffer.Length); } else { QuotedPrintableStream s = new QuotedPrintableStream(); newLength = s.DecodeBytes(buffer, 0, buffer.Length); } Encoding encoding = Encoding.GetEncoding(charSet); string newValue = encoding.GetString(buffer, 0, newLength); return newValue; } internal static Encoding DecodeEncoding(string value) { if(value == null || value.Length == 0){ return null; } string[] subStrings = value.Split('?'); if ((subStrings.Length != 5 || subStrings[0] != "=" || subStrings[4] != "=")) { return null; } string charSet = subStrings[1]; return Encoding.GetEncoding(charSet); } internal static bool IsAscii(string value, bool permitCROrLF) { if (value == null) throw new ArgumentNullException("value"); foreach (char c in value) { if ((int)c > 0x7f) { return false; } if (!permitCROrLF && (c=='\r' || c=='\n')) { return false; } } return true; } internal static bool IsAnsi(string value, bool permitCROrLF) { if (value == null) throw new ArgumentNullException("value"); foreach (char c in value) { if ((int)c > 0xff) { return false; } if (!permitCROrLF && (c=='\r' || c=='\n')) { return false; } } return true; } /* // Consider removing. internal string ContentDescription { get { return Headers[MimePartHeaderNames.ContentDescription]; } set { if (value == null) throw new ArgumentNullException("value"); Headers[MimePartHeaderNames.ContentDescription] = value; } } */ internal string ContentID { get { return Headers[MailHeaderInfo.GetString(MailHeaderID.ContentID)]; } set { if (string.IsNullOrEmpty(value)) { Headers.Remove(MailHeaderInfo.GetString(MailHeaderID.ContentID)); } else { Headers[MailHeaderInfo.GetString(MailHeaderID.ContentID)] = value; } } } internal string ContentLocation { get { return Headers[MailHeaderInfo.GetString(MailHeaderID.ContentLocation)]; } set { if (string.IsNullOrEmpty(value)) { Headers.Remove(MailHeaderInfo.GetString(MailHeaderID.ContentLocation)); } else { Headers[MailHeaderInfo.GetString(MailHeaderID.ContentLocation)] = value; } } } internal NameValueCollection Headers { get { //persist existing info before returning if (headers == null) headers = new HeaderCollection(); if (contentType == null){ contentType = new ContentType(); } contentType.PersistIfNeeded(headers,false); if (contentDisposition != null) contentDisposition.PersistIfNeeded(headers,false); return headers; } } internal ContentType ContentType{ get{ if (contentType == null){ contentType = new ContentType(); } return contentType; } set { if (value == null) throw new ArgumentNullException("value"); contentType = value; contentType.PersistIfNeeded((HeaderCollection)Headers,true); } } internal virtual void Send(BaseWriter writer) { throw new NotImplementedException(); } internal virtual IAsyncResult BeginSend(BaseWriter writer, AsyncCallback callback, object state) { throw new NotImplementedException(); } internal void EndSend(IAsyncResult asyncResult) { if (asyncResult == null) { throw new ArgumentNullException("asyncResult"); } LazyAsyncResult castedAsyncResult = asyncResult as MimePartAsyncResult; if (castedAsyncResult == null || castedAsyncResult.AsyncObject != this) { throw new ArgumentException(SR.GetString(SR.net_io_invalidasyncresult), "asyncResult"); } if (castedAsyncResult.EndCalled) { throw new InvalidOperationException(SR.GetString(SR.net_io_invalidendcall, "EndSend")); } castedAsyncResult.InternalWaitForCompletion(); castedAsyncResult.EndCalled = true; if (castedAsyncResult.Result is Exception) { throw (Exception)castedAsyncResult.Result; } } internal class MimePartAsyncResult: LazyAsyncResult { internal MimePartAsyncResult(MimeBasePart part, object state, AsyncCallback callback):base(part,state,callback) { } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- HttpResponseHeader.cs
- ConditionCollection.cs
- EntityKey.cs
- _HTTPDateParse.cs
- StatusCommandUI.cs
- PersianCalendar.cs
- DefaultSerializationProviderAttribute.cs
- HitTestFilterBehavior.cs
- SelectingProviderEventArgs.cs
- WinEventQueueItem.cs
- CompareValidator.cs
- BooleanAnimationBase.cs
- MarkupExtensionParser.cs
- TextChange.cs
- SqlNodeAnnotation.cs
- _AutoWebProxyScriptWrapper.cs
- BindingContext.cs
- SchemeSettingElement.cs
- StandardBindingCollectionElement.cs
- glyphs.cs
- XmlElementList.cs
- WebZone.cs
- WindowsGrip.cs
- Html32TextWriter.cs
- OpenTypeCommon.cs
- PropertyTabChangedEvent.cs
- RectAnimationBase.cs
- ExpressionPrefixAttribute.cs
- MissingSatelliteAssemblyException.cs
- TextEncodedRawTextWriter.cs
- LinkClickEvent.cs
- XmlMembersMapping.cs
- FileLoadException.cs
- UpdatePanelTriggerCollection.cs
- ListManagerBindingsCollection.cs
- ManipulationBoundaryFeedbackEventArgs.cs
- WebPartUtil.cs
- HtmlMeta.cs
- RegexStringValidator.cs
- _ScatterGatherBuffers.cs
- Win32NamedPipes.cs
- PersistenceProvider.cs
- ObjectItemCollection.cs
- DrawingContext.cs
- BrowsableAttribute.cs
- RectangleHotSpot.cs
- PostBackOptions.cs
- GenericWebPart.cs
- ScriptHandlerFactory.cs
- ObjectItemLoadingSessionData.cs
- DataTable.cs
- XmlSchemaImport.cs
- MediaTimeline.cs
- SwitchExpression.cs
- AdornedElementPlaceholder.cs
- QueuePropertyVariants.cs
- _FtpControlStream.cs
- DateTimeFormatInfo.cs
- BindingRestrictions.cs
- HostingPreferredMapPath.cs
- FieldDescriptor.cs
- shaperfactory.cs
- TextWriter.cs
- ListViewInsertedEventArgs.cs
- PrtCap_Reader.cs
- HMACSHA512.cs
- NoResizeHandleGlyph.cs
- TextSelectionHighlightLayer.cs
- EUCJPEncoding.cs
- SSmlParser.cs
- ReversePositionQuery.cs
- FeatureSupport.cs
- TableRowCollection.cs
- Semaphore.cs
- documentsequencetextview.cs
- TemporaryBitmapFile.cs
- SqlDependencyUtils.cs
- ObfuscationAttribute.cs
- BinaryFormatter.cs
- PointCollection.cs
- XPathEmptyIterator.cs
- HtmlGenericControl.cs
- SafeNativeMethodsMilCoreApi.cs
- WebPartDeleteVerb.cs
- DoubleCollection.cs
- TableCell.cs
- FragmentNavigationEventArgs.cs
- WebPartVerbCollection.cs
- OwnerDrawPropertyBag.cs
- HttpHandler.cs
- AssociationType.cs
- Point3DAnimationBase.cs
- VirtualizingStackPanel.cs
- ReadOnlyNameValueCollection.cs
- WebContext.cs
- WizardSideBarListControlItem.cs
- SqlExpressionNullability.cs
- OdbcException.cs
- precedingsibling.cs
- ProcessHostServerConfig.cs