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SocksInitRequestDecoder Class — netty Architecture

Architecture documentation for the SocksInitRequestDecoder class in SocksInitRequestDecoder.java from the netty codebase.

Class java

Entity Profile

Dependency Diagram

graph TD
  eb14949c_0997_e4e8_ab21_876b722c6daa["SocksInitRequestDecoder"]
  e1d67b36_157c_a145_60ff_9e2bbbcbc3d4["SocksInitRequestDecoder.java"]
  eb14949c_0997_e4e8_ab21_876b722c6daa -->|defined in| e1d67b36_157c_a145_60ff_9e2bbbcbc3d4
  735d3f0f_6ee8_8e17_6a27_ea2aba4f6c10["SocksInitRequestDecoder()"]
  eb14949c_0997_e4e8_ab21_876b722c6daa -->|method| 735d3f0f_6ee8_8e17_6a27_ea2aba4f6c10
  edfa33e2_a9cb_7087_66cd_9de08e5caccc["decode()"]
  eb14949c_0997_e4e8_ab21_876b722c6daa -->|method| edfa33e2_a9cb_7087_66cd_9de08e5caccc

Relationship Graph

Source Code

codec-socks/src/main/java/io/netty/handler/codec/socks/SocksInitRequestDecoder.java lines 32–74

public class SocksInitRequestDecoder extends ReplayingDecoder<State> {

    public SocksInitRequestDecoder() {
        super(State.CHECK_PROTOCOL_VERSION);
    }

    @Override
    protected void decode(ChannelHandlerContext ctx, ByteBuf byteBuf, List<Object> out) throws Exception {
        switch (state()) {
            case CHECK_PROTOCOL_VERSION: {
                if (byteBuf.readByte() != SocksProtocolVersion.SOCKS5.byteValue()) {
                    out.add(SocksCommonUtils.UNKNOWN_SOCKS_REQUEST);
                    break;
                }
                checkpoint(State.READ_AUTH_SCHEMES);
            }
            case READ_AUTH_SCHEMES: {
                final byte authSchemeNum = byteBuf.readByte();
                final List<SocksAuthScheme> authSchemes;
                if (authSchemeNum > 0) {
                    authSchemes = new ArrayList<SocksAuthScheme>(authSchemeNum);
                    for (int i = 0; i < authSchemeNum; i++) {
                        authSchemes.add(SocksAuthScheme.valueOf(byteBuf.readByte()));
                    }
                } else {
                    authSchemes = Collections.emptyList();
                }
                out.add(new SocksInitRequest(authSchemes));
                break;
            }
            default: {
                throw new Error("Unexpected request decoder type: " + state());
            }
        }
        ctx.pipeline().remove(this);
    }

    @UnstableApi
    public enum State {
        CHECK_PROTOCOL_VERSION,
        READ_AUTH_SCHEMES
    }
}

Defined In

Source

Frequently Asked Questions

What is the SocksInitRequestDecoder class?
SocksInitRequestDecoder is a class in the netty codebase, defined in codec-socks/src/main/java/io/netty/handler/codec/socks/SocksInitRequestDecoder.java.
Where is SocksInitRequestDecoder defined?
SocksInitRequestDecoder is defined in codec-socks/src/main/java/io/netty/handler/codec/socks/SocksInitRequestDecoder.java at line 32.

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