internal int ReadContentAsBase64(byte[] buffer, int index, int count)
{
// check arguments
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
if (count < 0)
{
throw new ArgumentOutOfRangeException(nameof(count));
}
if (index < 0)
{
throw new ArgumentOutOfRangeException(nameof(index));
}
if (buffer.Length - index < count)
{
throw new ArgumentOutOfRangeException(nameof(count));
}
switch (_state)
{
case State.None:
if (!_reader.CanReadContentAs())
{
throw _reader.CreateReadContentAsException(nameof(ReadContentAsBase64));
}
if (!Init())
{
return(0);
}
break;
case State.InReadContent:
// if we have a correct decoder, go read
if (_decoder == _base64Decoder)
{
// read more binary data
return(ReadContentAsBinary(buffer, index, count));
}
break;
case State.InReadElementContent:
throw new InvalidOperationException(SR.Xml_MixingBinaryContentMethods);
default:
Debug.Fail($"Unexpected state {_state}");
return(0);
}
Debug.Assert(_state == State.InReadContent);
// setup base64 decoder
InitBase64Decoder();
// read more binary data
return(ReadContentAsBinary(buffer, index, count));
}
// Internal methods
internal int ReadContentAsBase64(byte[] buffer, int index, int count)
{
// check arguments
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (count < 0)
{
throw new ArgumentOutOfRangeException("count");
}
if (index < 0)
{
throw new ArgumentOutOfRangeException("index");
}
if (buffer.Length - index < count)
{
throw new ArgumentOutOfRangeException("count");
}
switch (state)
{
case State.None:
if (!reader.CanReadContentAs())
{
throw reader.CreateReadContentAsException("ReadContentAsBase64");
}
if (!Init())
{
return(0);
}
break;
case State.InReadContent:
// if we have a correct decoder, go read
if (decoder == base64Decoder)
{
// read more binary data
return(ReadContentAsBinary(buffer, index, count));
}
break;
case State.InReadElementContent:
throw new InvalidOperationException(Res.GetString(Res.Xml_MixingBinaryContentMethods));
default:
Debug.Assert(false);
return(0);
}
Debug.Assert(state == State.InReadContent);
// setup base64 decoder
InitBase64Decoder();
// read more binary data
return(ReadContentAsBinary(buffer, index, count));
}
public virtual object ReadContentAsObject()
{
if (!XmlReader.CanReadContentAs(this.NodeType))
{
throw this.CreateReadContentAsException(nameof(ReadContentAsObject));
}
return((object)this.InternalReadContentAsString());
}