public AmfContext(AmfVersion version)
{
AmfVersion = version;
References = new List <AmfReference>();
StringReferences = new List <string>();
TraitsReferences = new List <AmfTypeTraits>();
}
/// <summary>
/// Initializes a new instance of the <see cref="AmfContext"/> class.
/// </summary>
/// <param name="version">
/// The version.
/// </param>
public AmfContext(AmfVersion version)
{
this.AmfVersion = version;
this.References = new List <AmfReference>();
this.StringReferences = new List <string>();
this.TraitsReferences = new List <AmfTypeTraits>();
}
public AmfContext(AmfVersion version)
{
AmfVersion = version;
References = new List<AmfReference>();
StringReferences = new List<string>();
TraitsReferences = new List<AmfTypeTraits>();
}
/// <summary>
/// Create default AMF decoding context.
/// </summary>
/// <returns>
/// The <see cref="AmfContext" />.
/// </returns>
protected AmfContext CreateDefaultContext()
{
// In mixed context enviroinments,
// AMF0 is always used by default
AmfVersion amfVersion = this.DecodingOptions.UseContextSwitch
? AmfVersion.Amf0
: this.DecodingOptions.AmfVersion;
return(new AmfContext(amfVersion));
}
/// <summary>
/// Convert version enumeration value to an AMFX value.
/// </summary>
/// <param name="value">
/// The value.
/// </param>
/// <returns>
/// The <see cref="string"/>.
/// </returns>
public static string ToAmfxName(this AmfVersion value)
{
switch (value)
{
case AmfVersion.Amf0:
return(AmfxContent.VersionAmf0);
case AmfVersion.Amf3:
return(AmfxContent.VersionAmf3);
default:
throw new NotSupportedException("Version '" + value + "' is not supported.");
}
}
/// <summary>
/// Create AMF decoder.
/// </summary>
/// <param name="version">AMF packet version.</param>
/// <param name="options">Encoding options.</param>
private static IAmfDecoder CreateDecoder(AmfVersion version, AmfEncodingOptions options)
{
switch (version)
{
case AmfVersion.Amf0:
return(new Amf0Decoder(options));
case AmfVersion.Amf3:
return(new Amf3Decoder(options));
default:
throw new NotSupportedException();
}
}
/// <summary>
/// Write AMF message version.
/// </summary>
static private void WriteAmfVersion(AmfStreamWriter writer, AmfVersion version)
{
writer.Write((ushort)version);
}
/// <summary>
/// Write AMF message version.
/// </summary>
private static void WriteAmfVersion(AmfStreamWriter writer, AmfVersion version)
{
writer.Write((ushort)version);
}
/// <summary>
/// Decode an AMF packet into an AMFX format.
/// </summary>
/// <param name="stream">
/// The stream.
/// </param>
/// <param name="output">
/// The output.
/// </param>
/// <exception cref="InvalidDataException">
/// Error during decoding.
/// </exception>
public void Decode(Stream stream, XmlWriter output)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (!stream.CanRead)
{
throw new ArgumentException(Errors.AmfPacketReader_Read_StreamClosed, "stream");
}
if (output == null)
{
throw new ArgumentNullException("output");
}
try
{
var amfStreamReader = new AmfStreamReader(stream);
AmfVersion version = ReadPacketVersion(amfStreamReader);
IAmfDecoder decoder = CreateDecoder(version, this._options);
output.WriteStartDocument();
output.WriteStartElement(AmfxContent.AmfxDocument, AmfxContent.Namespace);
output.WriteAttributeString(AmfxContent.VersionAttribute, version.ToAmfxName());
output.Flush();
// Read headers
uint headerCount = ReadDataCount(amfStreamReader);
for (int i = 0; i < headerCount; i++)
{
AmfHeaderDescriptor header = decoder.ReadPacketHeader(stream);
output.WriteStartElement(AmfxContent.PacketHeader);
output.WriteAttributeString(AmfxContent.PacketHeaderName, header.Name);
output.WriteAttributeString(
AmfxContent.PacketHeaderMustUnderstand,
header.MustUnderstand.ToString());
decoder.Decode(stream, output);
output.WriteEndElement();
output.Flush();
}
// Read messages
uint messageCount = ReadDataCount(amfStreamReader);
for (int i = 0; i < messageCount; i++)
{
AmfMessageDescriptor body = decoder.ReadPacketBody(stream);
output.WriteStartElement(AmfxContent.PacketBody);
output.WriteAttributeString(AmfxContent.PacketBodyTarget, body.Target);
output.WriteAttributeString(AmfxContent.PacketBodyResponse, body.Response);
decoder.Decode(stream, output);
output.WriteEndElement();
output.Flush();
}
output.WriteEndElement();
output.WriteEndDocument();
output.Flush();
}
catch (Exception e)
{
output.Flush();
throw new InvalidDataException(Errors.AmfPacketReader_DecodingError, e);
}
}
public SerializationContext(AmfVersion version)
: base(version)
{
}
/// <summary>
/// Create AMF decoder.
/// </summary>
/// <param name="version">AMF packet version.</param>
/// <param name="options">Encoding options.</param>
private static IAmfDecoder CreateDecoder(AmfVersion version, AmfEncodingOptions options)
{
switch (version)
{
case AmfVersion.Amf0:
return new Amf0Decoder(options);
case AmfVersion.Amf3:
return new Amf3Decoder(options);
default:
throw new NotSupportedException();
}
}
