Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / Net / System / Net / Mail / MimeBasePart.cs / 5 / 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
- CapabilitiesAssignment.cs
- ActivityCodeGenerator.cs
- EntityException.cs
- OpenFileDialog.cs
- NumericPagerField.cs
- SliderAutomationPeer.cs
- HttpResponseInternalBase.cs
- HitTestParameters3D.cs
- ActivityBindForm.cs
- SmtpNetworkElement.cs
- XmlSchemaObject.cs
- SqlReferenceCollection.cs
- RegexGroupCollection.cs
- BasicExpressionVisitor.cs
- Rotation3DAnimationBase.cs
- SkinBuilder.cs
- ListViewItemSelectionChangedEvent.cs
- File.cs
- CharKeyFrameCollection.cs
- ManifestSignedXml.cs
- SqlNotificationRequest.cs
- DynamicArgumentDialog.cs
- CrossContextChannel.cs
- ObjectConverter.cs
- Polygon.cs
- XmlQuerySequence.cs
- DataReaderContainer.cs
- SuppressMergeCheckAttribute.cs
- DurationConverter.cs
- BufferModesCollection.cs
- activationcontext.cs
- WindowsProgressbar.cs
- ZipIOModeEnforcingStream.cs
- ParallelQuery.cs
- DataBindingCollection.cs
- QuaternionValueSerializer.cs
- SafeThreadHandle.cs
- GridSplitterAutomationPeer.cs
- Formatter.cs
- TextEndOfParagraph.cs
- Attributes.cs
- InkPresenter.cs
- ToolboxItemFilterAttribute.cs
- ErrorWrapper.cs
- Selection.cs
- GridViewRowEventArgs.cs
- ExpressionWriter.cs
- AdjustableArrowCap.cs
- ImageSourceConverter.cs
- SimpleTypeResolver.cs
- PrimitiveCodeDomSerializer.cs
- HashHelpers.cs
- Msec.cs
- InvalidCastException.cs
- HttpHandlersSection.cs
- ScriptResourceAttribute.cs
- XhtmlBasicCommandAdapter.cs
- ReferentialConstraintRoleElement.cs
- Subset.cs
- WebPartExportVerb.cs
- OdbcStatementHandle.cs
- ListChunk.cs
- TextEncodedRawTextWriter.cs
- StackOverflowException.cs
- XmlMemberMapping.cs
- DataGridViewDataErrorEventArgs.cs
- PkcsMisc.cs
- WhileDesigner.xaml.cs
- RegexParser.cs
- TargetParameterCountException.cs
- BidirectionalDictionary.cs
- Size3D.cs
- SqlFunctions.cs
- SymLanguageVendor.cs
- WpfSharedBamlSchemaContext.cs
- Adorner.cs
- dbdatarecord.cs
- CompoundFileStreamReference.cs
- StatusStrip.cs
- ClientBuildManager.cs
- PropertyTabChangedEvent.cs
- NamedPipeDuplicateContext.cs
- FillErrorEventArgs.cs
- MethodCallTranslator.cs
- CodeDefaultValueExpression.cs
- Visual3D.cs
- LookupBindingPropertiesAttribute.cs
- XmlIlTypeHelper.cs
- CmsUtils.cs
- InvalidProgramException.cs
- XamlRtfConverter.cs
- SessionEndingCancelEventArgs.cs
- iisPickupDirectory.cs
- HttpRawResponse.cs
- CapabilitiesPattern.cs
- XmlCharCheckingReader.cs
- TailCallAnalyzer.cs
- FileUtil.cs
- safelinkcollection.cs
- DataGridTableStyleMappingNameEditor.cs