CanonicalFormWriter.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / IdentityModel / System / IdentityModel / CanonicalFormWriter.cs / 1305376 / CanonicalFormWriter.cs
                        

                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.IdentityModel 
{
    using System.IO; 
    using System.Security.Cryptography; 
    using System.Text;
    using System.Xml; 

    abstract class CanonicalFormWriter
    {
        internal static readonly UTF8Encoding Utf8WithoutPreamble = new UTF8Encoding(false); 

        protected static void Base64EncodeAndWrite(Stream stream, byte[] workBuffer, char[] base64WorkBuffer, byte[] data) 
        { 
            if ((data.Length / 3) * 4 + 4 > base64WorkBuffer.Length)
            { 
                EncodeAndWrite(stream, Convert.ToBase64String(data));
                return;
            }
 
            int encodedLength = Convert.ToBase64CharArray(data, 0, data.Length, base64WorkBuffer, 0, Base64FormattingOptions.None);
            EncodeAndWrite(stream, workBuffer, base64WorkBuffer, encodedLength); 
        } 

        protected static void EncodeAndWrite(Stream stream, byte[] workBuffer, string s) 
        {
            if (s.Length > workBuffer.Length)
            {
                EncodeAndWrite(stream, s); 
                return;
            } 
 
            for (int i = 0; i < s.Length; i++)
            { 
                char c = s[i];
                if (c < 127)
                {
                    workBuffer[i] = (byte) c; 
                }
                else 
                { 
                    EncodeAndWrite(stream, s);
                    return; 
                }
            }

            stream.Write(workBuffer, 0, s.Length); 
        }
 
        protected static void EncodeAndWrite(Stream stream, byte[] workBuffer, char[] chars) 
        {
            EncodeAndWrite(stream, workBuffer, chars, chars.Length); 
        }

        protected static void EncodeAndWrite(Stream stream, byte[] workBuffer, char[] chars, int count)
        { 
            if (count > workBuffer.Length)
            { 
                EncodeAndWrite(stream, chars, count); 
                return;
            } 

            for (int i = 0; i < count; i++)
            {
                char c = chars[i]; 
                if (c < 127)
                { 
                    workBuffer[i] = (byte) c; 
                }
                else 
                {
                    EncodeAndWrite(stream, chars, count);
                    return;
                } 
            }
 
            stream.Write(workBuffer, 0, count); 
        }
 
        static void EncodeAndWrite(Stream stream, string s)
        {
            byte[] buffer = CanonicalFormWriter.Utf8WithoutPreamble.GetBytes(s);
            stream.Write(buffer, 0, buffer.Length); 
        }
 
        static void EncodeAndWrite(Stream stream, char[] chars, int count) 
        {
            byte[] buffer = CanonicalFormWriter.Utf8WithoutPreamble.GetBytes(chars, 0, count); 
            stream.Write(buffer, 0, buffer.Length);
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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