Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / IdentityModel / System / IdentityModel / SamlDelegatingWriter.cs / 1305376 / SamlDelegatingWriter.cs
//------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------- namespace System.IdentityModel { using System; using System.Collections.Generic; using System.IO; using System.Text; using System.Xml; sealed class SamlDelegatingWriter : XmlDictionaryWriter { XmlDictionaryWriter innerWriter; Stream canonicalStream; ICanonicalWriterEndRootElementCallback callback; IXmlDictionary dictionary; int elementCount; MemoryStream startFragment; MemoryStream signatureFragment; MemoryStream endFragment; XmlDictionaryWriter effectiveWriter; MemoryStream writerStream; public SamlDelegatingWriter(XmlDictionaryWriter innerWriter, Stream canonicalStream, ICanonicalWriterEndRootElementCallback callback, IXmlDictionary dictionary) { if (innerWriter == null) throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("innerWriter"); if (canonicalStream == null) throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("canonicalStream"); if (callback == null) throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("callback"); if (dictionary == null) throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("dictionary"); this.innerWriter = innerWriter; this.canonicalStream = canonicalStream; this.callback = callback; this.dictionary = dictionary; this.elementCount = 0; this.startFragment = new MemoryStream(); this.signatureFragment = new MemoryStream(); this.endFragment = new MemoryStream(); this.writerStream = new MemoryStream(); this.effectiveWriter = XmlDictionaryWriter.CreateBinaryWriter(this.writerStream, this.dictionary); this.effectiveWriter.StartCanonicalization(this.canonicalStream, false, null); ((IFragmentCapableXmlDictionaryWriter)this.effectiveWriter).StartFragment(this.startFragment, false); } private void OnEndOfRootElement() { this.elementCount--; if ((this.elementCount == 0) && (this.endFragment.Length == 0)) { // We still have to compute the signature. Write end element as a different fragment // and end canonicalization. Call back SAML to compute the signature. ((IFragmentCapableXmlDictionaryWriter)this.effectiveWriter).EndFragment(); ((IFragmentCapableXmlDictionaryWriter)this.effectiveWriter).StartFragment(this.endFragment, false); this.effectiveWriter.WriteEndElement(); ((IFragmentCapableXmlDictionaryWriter)this.effectiveWriter).EndFragment(); this.effectiveWriter.EndCanonicalization(); // Start the signature fragment. ((IFragmentCapableXmlDictionaryWriter)this.effectiveWriter).StartFragment(this.signatureFragment, false); this.callback.OnEndOfRootElement(this); } else if (this.elementCount == 0) { // Signature fragment is complete. End this fragment and write all fragments into the // inner writer. this.effectiveWriter.WriteEndElement(); ((IFragmentCapableXmlDictionaryWriter)this.effectiveWriter).EndFragment(); ((IFragmentCapableXmlDictionaryWriter)this.effectiveWriter).WriteFragment(this.startFragment.GetBuffer(), 0, (int)this.startFragment.Length); ((IFragmentCapableXmlDictionaryWriter)this.effectiveWriter).WriteFragment(this.signatureFragment.GetBuffer(), 0, (int)this.signatureFragment.Length); ((IFragmentCapableXmlDictionaryWriter)this.effectiveWriter).WriteFragment(this.endFragment.GetBuffer(), 0, (int)this.endFragment.Length); this.startFragment.Close(); this.signatureFragment.Close(); this.endFragment.Close(); this.writerStream.Position = 0; XmlDictionaryReader reader = XmlDictionaryReader.CreateBinaryReader(this.writerStream, this.dictionary, XmlDictionaryReaderQuotas.Max); reader.MoveToContent(); this.innerWriter.WriteNode(reader, false); this.innerWriter.Flush(); reader.Close(); this.writerStream.Close(); this.effectiveWriter.Close(); } else { this.effectiveWriter.WriteEndElement(); } } public override void Close() { this.effectiveWriter.Close(); } public override void Flush() { this.effectiveWriter.Flush(); } public override void WriteArray(string prefix, string localName, string namespaceUri, bool[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, string localName, string namespaceUri, double[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, string localName, string namespaceUri, decimal[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, string localName, string namespaceUri, float[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, string localName, string namespaceUri, int[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, string localName, string namespaceUri, long[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, string localName, string namespaceUri, short[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, string localName, string namespaceUri, DateTime[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, string localName, string namespaceUri, Guid[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, string localName, string namespaceUri, TimeSpan[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri, bool[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri, decimal[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri, double[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri, float[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri, int[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri, long[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri, short[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri, DateTime[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri, Guid[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteArray(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri, TimeSpan[] array, int offset, int count) { this.effectiveWriter.WriteArray(prefix, localName, namespaceUri, array, offset, count); } public override void WriteAttributes(XmlReader reader, bool defattr) { this.effectiveWriter.WriteAttributes(reader, defattr); } public override void WriteBase64(byte[] buffer, int index, int count) { this.effectiveWriter.WriteBase64(buffer, index, count); } public override void WriteBinHex(byte[] buffer, int index, int count) { this.effectiveWriter.WriteBinHex(buffer, index, count); } public override void WriteCData(string text) { this.effectiveWriter.WriteCData(text); } public override void WriteCharEntity(char ch) { this.effectiveWriter.WriteCharEntity(ch); } public override void WriteChars(char[] buffer, int index, int count) { this.effectiveWriter.WriteChars(buffer, index, count); } public override void WriteComment(string text) { this.effectiveWriter.WriteComment(text); } public override void WriteDocType(string name, string pubid, string sysid, string subset) { this.effectiveWriter.WriteDocType(name, pubid, sysid, subset); } public override void WriteEndAttribute() { this.effectiveWriter.WriteEndAttribute(); } public override void WriteEndDocument() { this.effectiveWriter.WriteEndDocument(); } public override void WriteEndElement() { OnEndOfRootElement(); } public override void WriteEntityRef(string name) { this.effectiveWriter.WriteEntityRef(name); } public override void WriteFullEndElement() { this.effectiveWriter.WriteFullEndElement(); } public override void WriteName(string name) { this.effectiveWriter.WriteName(name); } public override void WriteNmToken(string name) { this.effectiveWriter.WriteNmToken(name); } public override void WriteNode(XmlDictionaryReader reader, bool defattr) { this.effectiveWriter.WriteNode(reader, defattr); } public override void WriteNode(XmlReader reader, bool defattr) { this.effectiveWriter.WriteNode(reader, defattr); } public override void WriteNode(System.Xml.XPath.XPathNavigator navigator, bool defattr) { this.effectiveWriter.WriteNode(navigator, defattr); } public override void WriteProcessingInstruction(string name, string text) { this.effectiveWriter.WriteProcessingInstruction(name, text); } public override void WriteQualifiedName(string localName, string ns) { this.effectiveWriter.WriteQualifiedName(localName, ns); } public override void WriteQualifiedName(XmlDictionaryString localName, XmlDictionaryString namespaceUri) { this.effectiveWriter.WriteQualifiedName(localName, namespaceUri); } public override void WriteRaw(char[] buffer, int index, int count) { this.effectiveWriter.WriteRaw(buffer, index, count); } public override void WriteRaw(string data) { this.effectiveWriter.WriteRaw(data); } public override void WriteStartAttribute(string prefix, string localName, string ns) { this.effectiveWriter.WriteStartAttribute(prefix, localName, ns); } public override void WriteStartAttribute(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri) { this.effectiveWriter.WriteStartAttribute(prefix, localName, namespaceUri); } public override void WriteStartDocument() { this.effectiveWriter.WriteStartDocument(); } public override void WriteStartDocument(bool standalone) { this.effectiveWriter.WriteStartDocument(standalone); } public override void WriteStartElement(string prefix, string localName, string ns) { this.elementCount++; this.effectiveWriter.WriteStartElement(prefix, localName, ns); } public override void WriteStartElement(string prefix, XmlDictionaryString localName, XmlDictionaryString namespaceUri) { this.elementCount++; this.effectiveWriter.WriteStartElement(prefix, localName, namespaceUri); } public override WriteState WriteState { get { return this.effectiveWriter.WriteState; } } public override void WriteString(string text) { this.effectiveWriter.WriteString(text); } public override void WriteString(XmlDictionaryString value) { this.effectiveWriter.WriteString(value); } public override void WriteSurrogateCharEntity(char lowChar, char highChar) { this.effectiveWriter.WriteSurrogateCharEntity(lowChar, highChar); } public override void WriteValue(bool value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(decimal value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(double value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(float value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(int value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(long value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(object value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(string value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(DateTime value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(Guid value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(TimeSpan value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(IStreamProvider value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(UniqueId value) { this.effectiveWriter.WriteValue(value); } public override void WriteValue(XmlDictionaryString value) { this.effectiveWriter.WriteValue(value); } public override void WriteWhitespace(string ws) { this.effectiveWriter.WriteWhitespace(ws); } public override void WriteXmlAttribute(string localName, string value) { this.effectiveWriter.WriteXmlAttribute(localName, value); } public override void WriteXmlAttribute(XmlDictionaryString localName, XmlDictionaryString value) { this.effectiveWriter.WriteXmlAttribute(localName, value); } public override void WriteXmlnsAttribute(string prefix, string namespaceUri) { this.effectiveWriter.WriteXmlnsAttribute(prefix, namespaceUri); } public override void WriteXmlnsAttribute(string prefix, XmlDictionaryString namespaceUri) { this.effectiveWriter.WriteXmlnsAttribute(prefix, namespaceUri); } public override string LookupPrefix(string ns) { return this.effectiveWriter.LookupPrefix(ns); } } internal interface ICanonicalWriterEndRootElementCallback { void OnEndOfRootElement(XmlDictionaryWriter writer); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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