99 lines
3.0 KiB
C#
99 lines
3.0 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
|
|
#pragma warning disable
|
|
using System;
|
|
using System.IO;
|
|
|
|
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
|
|
|
|
namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls
|
|
{
|
|
/**
|
|
* RFC 6066 5.
|
|
*/
|
|
public class UrlAndHash
|
|
{
|
|
protected readonly string mUrl;
|
|
protected readonly byte[] mSha1Hash;
|
|
|
|
public UrlAndHash(string url, byte[] sha1Hash)
|
|
{
|
|
if (url == null || url.Length < 1 || url.Length >= (1 << 16))
|
|
throw new ArgumentException("must have length from 1 to (2^16 - 1)", "url");
|
|
if (sha1Hash != null && sha1Hash.Length != 20)
|
|
throw new ArgumentException("must have length == 20, if present", "sha1Hash");
|
|
|
|
this.mUrl = url;
|
|
this.mSha1Hash = sha1Hash;
|
|
}
|
|
|
|
public virtual string Url
|
|
{
|
|
get { return mUrl; }
|
|
}
|
|
|
|
public virtual byte[] Sha1Hash
|
|
{
|
|
get { return mSha1Hash; }
|
|
}
|
|
|
|
/**
|
|
* Encode this {@link UrlAndHash} to a {@link Stream}.
|
|
*
|
|
* @param output the {@link Stream} to encode to.
|
|
* @throws IOException
|
|
*/
|
|
public virtual void Encode(Stream output)
|
|
{
|
|
byte[] urlEncoding = Strings.ToByteArray(this.mUrl);
|
|
TlsUtilities.WriteOpaque16(urlEncoding, output);
|
|
|
|
if (this.mSha1Hash == null)
|
|
{
|
|
TlsUtilities.WriteUint8(0, output);
|
|
}
|
|
else
|
|
{
|
|
TlsUtilities.WriteUint8(1, output);
|
|
output.Write(this.mSha1Hash, 0, this.mSha1Hash.Length);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Parse a {@link UrlAndHash} from a {@link Stream}.
|
|
*
|
|
* @param context
|
|
* the {@link TlsContext} of the current connection.
|
|
* @param input
|
|
* the {@link Stream} to parse from.
|
|
* @return a {@link UrlAndHash} object.
|
|
* @throws IOException
|
|
*/
|
|
public static UrlAndHash Parse(TlsContext context, Stream input)
|
|
{
|
|
byte[] urlEncoding = TlsUtilities.ReadOpaque16(input);
|
|
if (urlEncoding.Length < 1)
|
|
throw new TlsFatalAlert(AlertDescription.illegal_parameter);
|
|
string url = Strings.FromByteArray(urlEncoding);
|
|
|
|
byte[] sha1Hash = null;
|
|
byte padding = TlsUtilities.ReadUint8(input);
|
|
switch (padding)
|
|
{
|
|
case 0:
|
|
if (TlsUtilities.IsTlsV12(context))
|
|
throw new TlsFatalAlert(AlertDescription.illegal_parameter);
|
|
break;
|
|
case 1:
|
|
sha1Hash = TlsUtilities.ReadFully(20, input);
|
|
break;
|
|
default:
|
|
throw new TlsFatalAlert(AlertDescription.illegal_parameter);
|
|
}
|
|
|
|
return new UrlAndHash(url, sha1Hash);
|
|
}
|
|
}
|
|
}
|
|
#pragma warning restore
|
|
#endif
|