XmlSigningNodeWriter.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / Serialization / System / Xml / XmlSigningNodeWriter.cs / 1305376 / XmlSigningNodeWriter.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------
namespace System.Xml
{ 
    using System.IO;
    using System.Text; 
 
    class XmlSigningNodeWriter : XmlNodeWriter
    { 
        XmlNodeWriter writer;
        XmlCanonicalWriter signingWriter;
        byte[] chars;
        byte[] base64Chars; 
        bool text;
 
        public XmlSigningNodeWriter(bool text) 
        {
            this.text = text; 
        }

        public void SetOutput(XmlNodeWriter writer, Stream stream, bool includeComments, string[] inclusivePrefixes)
        { 
            this.writer = writer;
            if (signingWriter == null) 
                signingWriter = new XmlCanonicalWriter(); 
            this.signingWriter.SetOutput(stream, includeComments, inclusivePrefixes);
            this.chars = new byte[XmlConverter.MaxPrimitiveChars]; 
            this.base64Chars = null;
        }

        public XmlNodeWriter NodeWriter 
        {
            get 
            { 
                return writer;
            } 
            set
            {
                writer = value;
            } 
        }
 
        public XmlCanonicalWriter CanonicalWriter 
        {
            get 
            {
                return signingWriter;
            }
        } 

        public override void Flush() 
        { 
            writer.Flush();
            signingWriter.Flush(); 
        }

        public override void Close()
        { 
            writer.Close();
            signingWriter.Close(); 
        } 

        public override void WriteDeclaration() 
        {
            writer.WriteDeclaration();
            signingWriter.WriteDeclaration();
        } 

        public override void WriteComment(string text) 
        { 
            writer.WriteComment(text);
            signingWriter.WriteComment(text); 
        }

        public override void WriteCData(string text)
        { 
            writer.WriteCData(text);
            signingWriter.WriteEscapedText(text); 
        } 

        public override void WriteStartElement(string prefix, string localName) 
        {
            writer.WriteStartElement(prefix, localName);
            signingWriter.WriteStartElement(prefix, localName);
        } 

        public override void WriteStartElement(byte[] prefixBuffer, int prefixOffset, int prefixLength, 
                                               byte[] localNameBuffer, int localNameOffset, int localNameLength) 
        {
            writer.WriteStartElement(prefixBuffer, prefixOffset, prefixLength, localNameBuffer, localNameOffset, localNameLength); 
            signingWriter.WriteStartElement(prefixBuffer, prefixOffset, prefixLength, localNameBuffer, localNameOffset, localNameLength);
        }

        public override void WriteStartElement(string prefix, XmlDictionaryString localName) 
        {
            writer.WriteStartElement(prefix, localName); 
            signingWriter.WriteStartElement(prefix, localName.Value); 
        }
 
        public override void WriteEndStartElement(bool isEmpty)
        {
            writer.WriteEndStartElement(isEmpty);
            signingWriter.WriteEndStartElement(isEmpty); 
        }
 
        public override void WriteEndElement(string prefix, string localName) 
        {
            writer.WriteEndElement(prefix, localName); 
            signingWriter.WriteEndElement(prefix, localName);
        }

        public override void WriteXmlnsAttribute(string prefix, string ns) 
        {
            writer.WriteXmlnsAttribute(prefix, ns); 
            signingWriter.WriteXmlnsAttribute(prefix, ns); 
        }
 
        public override void WriteXmlnsAttribute(byte[] prefixBuffer, int prefixOffset, int prefixLength,
                                                 byte[] nsBuffer, int nsOffset, int nsLength)
        {
            writer.WriteXmlnsAttribute(prefixBuffer, prefixOffset, prefixLength, nsBuffer, nsOffset, nsLength); 
            signingWriter.WriteXmlnsAttribute(prefixBuffer, prefixOffset, prefixLength, nsBuffer, nsOffset, nsLength);
        } 
 
        public override void WriteXmlnsAttribute(string prefix, XmlDictionaryString ns)
        { 
            writer.WriteXmlnsAttribute(prefix, ns);
            signingWriter.WriteXmlnsAttribute(prefix, ns.Value);
        }
 
        public override void WriteStartAttribute(string prefix, string localName)
        { 
            writer.WriteStartAttribute(prefix, localName); 
            signingWriter.WriteStartAttribute(prefix, localName);
        } 

        public override void WriteStartAttribute(byte[] prefixBuffer, int prefixOffset, int prefixLength,
                                                 byte[] localNameBuffer, int localNameOffset, int localNameLength)
        { 
            writer.WriteStartAttribute(prefixBuffer, prefixOffset, prefixLength, localNameBuffer, localNameOffset, localNameLength);
            signingWriter.WriteStartAttribute(prefixBuffer, prefixOffset, prefixLength, localNameBuffer, localNameOffset, localNameLength); 
        } 

        public override void WriteStartAttribute(string prefix, XmlDictionaryString localName) 
        {
            writer.WriteStartAttribute(prefix, localName);
            signingWriter.WriteStartAttribute(prefix, localName.Value);
        } 

        public override void WriteEndAttribute() 
        { 
            writer.WriteEndAttribute();
            signingWriter.WriteEndAttribute(); 
        }

        public override void WriteCharEntity(int ch)
        { 
            writer.WriteCharEntity(ch);
            signingWriter.WriteCharEntity(ch); 
        } 

        public override void WriteEscapedText(string value) 
        {
            writer.WriteEscapedText(value);
            signingWriter.WriteEscapedText(value);
        } 

        public override void WriteEscapedText(char[] chars, int offset, int count) 
        { 
            writer.WriteEscapedText(chars, offset, count);
            signingWriter.WriteEscapedText(chars, offset, count); 
        }

        public override void WriteEscapedText(XmlDictionaryString value)
        { 
            writer.WriteEscapedText(value);
            signingWriter.WriteEscapedText(value.Value); 
        } 

        public override void WriteEscapedText(byte[] chars, int offset, int count) 
        {
            writer.WriteEscapedText(chars, offset, count);
            signingWriter.WriteEscapedText(chars, offset, count);
        } 

        public override void WriteText(string value) 
        { 
            writer.WriteText(value);
            signingWriter.WriteText(value); 
        }

        public override void WriteText(char[] chars, int offset, int count)
        { 
            writer.WriteText(chars, offset, count);
            signingWriter.WriteText(chars, offset, count); 
        } 

        public override void WriteText(byte[] chars, int offset, int count) 
        {
            writer.WriteText(chars, offset, count);
            signingWriter.WriteText(chars, offset, count);
        } 

        public override void WriteText(XmlDictionaryString value) 
        { 
            writer.WriteText(value);
            signingWriter.WriteText(value.Value); 
        }

        public override void WriteInt32Text(int value)
        { 
            int count = XmlConverter.ToChars(value, chars, 0);
            if (text) 
                writer.WriteText(chars, 0, count); 
            else
                writer.WriteInt32Text(value); 
            signingWriter.WriteText(chars, 0, count);
        }

        public override void WriteInt64Text(Int64 value) 
        {
            int count = XmlConverter.ToChars(value, chars, 0); 
            if (text) 
                writer.WriteText(chars, 0, count);
            else 
                writer.WriteInt64Text(value);
            signingWriter.WriteText(chars, 0, count);
        }
 
        public override void WriteBoolText(bool value)
        { 
            int count = XmlConverter.ToChars(value, chars, 0); 
            if (text)
                writer.WriteText(chars, 0, count); 
            else
                writer.WriteBoolText(value);
            signingWriter.WriteText(chars, 0, count);
        } 

        public override void WriteUInt64Text(UInt64 value) 
        { 
            int count = XmlConverter.ToChars(value, chars, 0);
            if (text) 
                writer.WriteText(chars, 0, count);
            else
                writer.WriteUInt64Text(value);
            signingWriter.WriteText(chars, 0, count); 
        }
 
        public override void WriteFloatText(float value) 
        {
            int count = XmlConverter.ToChars(value, chars, 0); 
            if (text)
                writer.WriteText(chars, 0, count);
            else
                writer.WriteFloatText(value); 
            signingWriter.WriteText(chars, 0, count);
        } 
 
        public override void WriteDoubleText(double value)
        { 
            int count = XmlConverter.ToChars(value, chars, 0);
            if (text)
                writer.WriteText(chars, 0, count);
            else 
                writer.WriteDoubleText(value);
            signingWriter.WriteText(chars, 0, count); 
        } 

        public override void WriteDecimalText(decimal value) 
        {
            int count = XmlConverter.ToChars(value, chars, 0);
            if (text)
                writer.WriteText(chars, 0, count); 
            else
                writer.WriteDecimalText(value); 
            signingWriter.WriteText(chars, 0, count); 
        }
 
        public override void WriteDateTimeText(DateTime value)
        {
            int count = XmlConverter.ToChars(value, chars, 0);
            if (text) 
                writer.WriteText(chars, 0, count);
            else 
                writer.WriteDateTimeText(value); 
            signingWriter.WriteText(chars, 0, count);
        } 

        public override void WriteUniqueIdText(UniqueId value)
        {
            string s = XmlConverter.ToString(value); 
            if (text)
                writer.WriteText(s); 
            else 
                writer.WriteUniqueIdText(value);
            signingWriter.WriteText(s); 
        }

        public override void WriteTimeSpanText(TimeSpan value)
        { 
            string s = XmlConverter.ToString(value);
            if (text) 
                writer.WriteText(s); 
            else
                writer.WriteTimeSpanText(value); 
            signingWriter.WriteText(s);
        }

        public override void WriteGuidText(Guid value) 
        {
            string s = XmlConverter.ToString(value); 
            if (text) 
                writer.WriteText(s);
            else 
                writer.WriteGuidText(value);
            signingWriter.WriteText(s);
        }
 
        public override void WriteStartListText()
        { 
            writer.WriteStartListText(); 
        }
 
        public override void WriteListSeparator()
        {
            writer.WriteListSeparator();
            signingWriter.WriteText(' '); 
        }
 
        public override void WriteEndListText() 
        {
            writer.WriteEndListText(); 
        }

        public override void WriteBase64Text(byte[] trailBytes, int trailByteCount, byte[] buffer, int offset, int count)
        { 
            if (trailByteCount > 0)
                WriteBase64Text(trailBytes, 0, trailByteCount); 
            WriteBase64Text(buffer, offset, count); 
            if (!text)
            { 
                writer.WriteBase64Text(trailBytes, trailByteCount, buffer, offset, count);
            }
        }
 
        void WriteBase64Text(byte[] buffer, int offset, int count)
        { 
            if (base64Chars == null) 
                base64Chars = new byte[512];
            Base64Encoding encoding = XmlConverter.Base64Encoding; 
            while (count >= 3)
            {
                int byteCount = Math.Min(base64Chars.Length / 4 * 3, count - count % 3);
                int charCount = byteCount / 3 * 4; 
                encoding.GetChars(buffer, offset, byteCount, base64Chars, 0);
                signingWriter.WriteText(base64Chars, 0, charCount); 
                if (text) 
                {
                    writer.WriteText(base64Chars, 0, charCount); 
                }
                offset += byteCount;
                count -= byteCount;
            } 
            if (count > 0)
            { 
                encoding.GetChars(buffer, offset, count, base64Chars, 0); 
                signingWriter.WriteText(base64Chars, 0, 4);
                if (text) 
                {
                    writer.WriteText(base64Chars, 0, 4);
                }
            } 
        }
 
        public override void WriteQualifiedName(string prefix, XmlDictionaryString localName) 
        {
            writer.WriteQualifiedName(prefix, localName); 
            if (prefix.Length != 0)
            {
                signingWriter.WriteText(prefix);
                signingWriter.WriteText(":"); 
            }
            signingWriter.WriteText(localName.Value); 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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XmlSigningNodeWriter.cs source code in C# .NET

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