- Modified protobufCodec.Encode() to combine length prefix and protobuf data into a single buffer and write in one call
- Modified protobufCodec.Decode() to read entire datagram in a single Read call
- Added comprehensive tests for datagram-based codec behavior
- Fixes issue #17: proto: cannot parse invalid wire-format data error in DTLS
Co-authored-by: dalbodeule <11470513+dalbodeule@users.noreply.github.com>
- Updated `Decode` to wrap `io.Reader` in a sufficiently large `bufio.Reader` when handling DTLS sessions, preventing "buffer is too small" errors.
- Enhanced length-prefix reading logic to ensure safe handling of Protobuf envelopes during DTLS stream processing.
- Clarified comments and fixed minor formatting inconsistencies in Protobuf codec documentation.
- Added safeguards to restrict HTTP body and stream payload sizes to 4KiB (`StreamChunkSize`) in the Protobuf codec.
- Updated client logic to apply consistent limits for streaming and non-streaming scenarios.
- Improved error handling with clear messages for oversized payloads.
- Added support for `StreamOpen`, `StreamData`, `StreamClose`, and `StreamAck` types in the Protobuf codec.
- Defined new pseudo-header constants for HTTP-over-stream tunneling.
- Introduced `StreamChunkSize` constant for MTU-safe payload sizes (4 KiB).
- Updated encoding and decoding logic to handle stream-based types seamlessly.
- Introduced `WireCodec` interface in `internal/protocol/codec.go` to abstract serialization/deserialization logic.
- Updated server and client to use `DefaultCodec`, replacing direct JSON encoding/decoding.
- Eliminated `bufio.Reader` from session handling, as `DefaultCodec` manages buffering for DTLS sessions.
- Marked related protocol tasks in `progress.md` as complete.
