| // Copyright 2025 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "quiche/quic/masque/masque_h2_connection.h" |
| |
| #include <algorithm> |
| #include <cerrno> |
| #include <cstddef> |
| #include <cstdint> |
| #include <cstring> |
| #include <memory> |
| #include <ostream> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "absl/strings/string_view.h" |
| #include "quiche/http2/adapter/http2_protocol.h" |
| #include "quiche/http2/adapter/http2_util.h" |
| #include "quiche/http2/adapter/http2_visitor_interface.h" |
| #include "quiche/http2/adapter/oghttp2_adapter.h" |
| #include "openssl/base.h" |
| #include "openssl/err.h" |
| #include "openssl/ssl.h" |
| #include "quiche/common/http/http_header_block.h" |
| #include "quiche/common/platform/api/quiche_logging.h" |
| #include "quiche/common/quiche_text_utils.h" |
| |
| using http2::adapter::Header; |
| using http2::adapter::Http2KnownSettingsId; |
| |
| namespace quic { |
| |
| MasqueH2Connection::MasqueH2Connection(SSL *ssl, bool is_server, |
| Visitor *visitor) |
| : ssl_(ssl), is_server_(is_server), visitor_(visitor) {} |
| |
| void MasqueH2Connection::OnTransportReadable() { |
| while (TryRead()) { |
| } |
| } |
| |
| MasqueH2Connection::~MasqueH2Connection() {} |
| |
| void MasqueH2Connection::Abort() { |
| if (aborted_) { |
| return; |
| } |
| aborted_ = true; |
| QUICHE_LOG(ERROR) << "Aborting connection"; |
| visitor_->OnConnectionFinished(this); |
| } |
| |
| void MasqueH2Connection::StartH2() { |
| http2::adapter::OgHttp2Adapter::Options options; |
| std::vector<Http2Setting> settings; |
| if (is_server_) { |
| options.perspective = http2::adapter::Perspective::kServer; |
| settings.push_back( |
| Http2Setting{Http2KnownSettingsId::ENABLE_CONNECT_PROTOCOL, 1}); |
| } else { |
| options.perspective = http2::adapter::Perspective::kClient; |
| } |
| settings.push_back( |
| Http2Setting{Http2KnownSettingsId::HEADER_TABLE_SIZE, 4096}); |
| settings.push_back(Http2Setting{Http2KnownSettingsId::ENABLE_PUSH, 0}); |
| settings.push_back( |
| Http2Setting{Http2KnownSettingsId::MAX_CONCURRENT_STREAMS, 100}); |
| settings.push_back( |
| Http2Setting{Http2KnownSettingsId::INITIAL_WINDOW_SIZE, 65535}); |
| settings.push_back(Http2Setting{Http2KnownSettingsId::MAX_FRAME_SIZE, 16384}); |
| settings.push_back( |
| Http2Setting{Http2KnownSettingsId::MAX_HEADER_LIST_SIZE, 65535}); |
| h2_adapter_ = http2::adapter::OgHttp2Adapter::Create(*this, options); |
| h2_adapter_->SubmitSettings(settings); |
| visitor_->OnConnectionReady(this); |
| } |
| bool MasqueH2Connection::TryRead() { |
| if (!tls_connected_) { |
| int ssl_handshake_ret = SSL_do_handshake(ssl_); |
| if (ssl_handshake_ret == 1) { |
| tls_connected_ = true; |
| StartH2(); |
| AttemptToSend(); |
| } else { |
| int ssl_err = SSL_get_error(ssl_, ssl_handshake_ret); |
| if (ssl_err == SSL_ERROR_WANT_READ) { |
| QUICHE_DVLOG(1) << "SSL_do_handshake will require another read"; |
| return false; |
| } |
| PrintSSLError("Error while connecting", ssl_err, ssl_handshake_ret); |
| return false; |
| } |
| } |
| uint8_t buffer[kBioBufferSize] = {}; |
| int ssl_read_ret = SSL_read(ssl_, buffer, sizeof(buffer) - 1); |
| if (ssl_read_ret < 0) { |
| int ssl_err = SSL_get_error(ssl_, ssl_read_ret); |
| if (ssl_err == SSL_ERROR_WANT_READ) { |
| return false; |
| } |
| PrintSSLError("Error while connecting", ssl_err, ssl_read_ret); |
| return false; |
| } |
| if (ssl_read_ret == 0) { |
| QUICHE_LOG(INFO) << "TLS read closed"; |
| return false; |
| } |
| QUICHE_DVLOG(1) << "Read " << ssl_read_ret << " bytes from TLS"; |
| QUICHE_DVLOG(2) << "Read TLS bytes:" << std::endl |
| << quiche::QuicheTextUtils::HexDump(absl::string_view( |
| reinterpret_cast<const char *>(buffer), ssl_read_ret)); |
| h2_adapter_->ProcessBytes( |
| absl::string_view(reinterpret_cast<const char *>(buffer), ssl_read_ret)); |
| return AttemptToSend(); |
| } |
| |
| int MasqueH2Connection::WriteDataToTls(absl::string_view data) { |
| QUICHE_DVLOG(2) << "Writing " << data.size() |
| << " app bytes to TLS:" << std::endl |
| << quiche::QuicheTextUtils::HexDump(data); |
| int ssl_write_ret = SSL_write(ssl_, data.data(), data.size()); |
| if (ssl_write_ret <= 0) { |
| int ssl_err = SSL_get_error(ssl_, ssl_write_ret); |
| PrintSSLError("Error while writing request to TLS", ssl_err, ssl_write_ret); |
| return -1; |
| } else { |
| if (ssl_write_ret == static_cast<int>(data.size())) { |
| QUICHE_DVLOG(1) << "Wrote " << data.size() << " bytes to TLS"; |
| } else { |
| QUICHE_DVLOG(1) << "Wrote " << ssl_write_ret << " / " << data.size() |
| << "bytes to TLS"; |
| } |
| } |
| return ssl_write_ret; |
| } |
| |
| int64_t MasqueH2Connection::OnReadyToSend(absl::string_view serialized) { |
| QUICHE_DVLOG(1) << "Writing " << serialized.size() |
| << " bytes of h2 data to TLS"; |
| int write_res = WriteDataToTls(serialized); |
| if (write_res < 0) { |
| return kSendError; |
| } |
| return write_res; |
| } |
| |
| MasqueH2Connection::DataFrameHeaderInfo |
| MasqueH2Connection::OnReadyToSendDataForStream(Http2StreamId stream_id, |
| size_t max_length) { |
| MasqueH2Stream *stream = GetOrCreateH2Stream(stream_id); |
| DataFrameHeaderInfo info; |
| if (max_length < stream->body_to_send.size()) { |
| info.payload_length = max_length; |
| info.end_data = false; |
| } else { |
| info.payload_length = stream->body_to_send.size(); |
| info.end_data = true; |
| } |
| info.end_stream = info.end_data; |
| return info; |
| } |
| |
| bool MasqueH2Connection::SendDataFrame(Http2StreamId stream_id, |
| absl::string_view frame_header, |
| size_t payload_bytes) { |
| if (!WriteDataToTls(frame_header)) { |
| return false; |
| } |
| MasqueH2Stream *stream = GetOrCreateH2Stream(stream_id); |
| size_t length_to_write = std::min(payload_bytes, stream->body_to_send.size()); |
| int length_written = |
| WriteDataToTls(stream->body_to_send.substr(0, length_to_write)); |
| if (length_written < 0) { |
| return false; |
| } |
| if (length_written == static_cast<int>(stream->body_to_send.size())) { |
| stream->body_to_send.clear(); |
| } else { |
| // Remove the written bytes from the start of `body_to_send`. |
| stream->body_to_send = stream->body_to_send.substr(length_written); |
| } |
| return true; |
| } |
| |
| void MasqueH2Connection::OnConnectionError(ConnectionError error) { |
| QUICHE_LOG(ERROR) << "OnConnectionError: " |
| << http2::adapter::ConnectionErrorToString(error); |
| Abort(); |
| } |
| |
| void MasqueH2Connection::OnSettingsStart() {} |
| |
| void MasqueH2Connection::OnSetting(Http2Setting setting) { |
| QUICHE_LOG(INFO) << "Received " |
| << http2::adapter::Http2SettingsIdToString(setting.id) |
| << " = " << setting.value; |
| } |
| |
| void MasqueH2Connection::OnSettingsEnd() {} |
| void MasqueH2Connection::OnSettingsAck() {} |
| |
| bool MasqueH2Connection::OnBeginHeadersForStream(Http2StreamId stream_id) { |
| QUICHE_DVLOG(1) << "OnBeginHeadersForStream " << stream_id; |
| return true; |
| } |
| |
| MasqueH2Connection::OnHeaderResult MasqueH2Connection::OnHeaderForStream( |
| Http2StreamId stream_id, absl::string_view key, absl::string_view value) { |
| QUICHE_DVLOG(2) << "Stream " << stream_id << " received header " << key |
| << " = " << value; |
| GetOrCreateH2Stream(stream_id)->received_headers.AppendValueOrAddHeader( |
| key, value); |
| return OnHeaderResult::HEADER_OK; |
| } |
| |
| bool MasqueH2Connection::AttemptToSend() { |
| if (!h2_adapter_) { |
| QUICHE_LOG(ERROR) << "Connection is not ready to send yet"; |
| return false; |
| } |
| int h2_send_result = h2_adapter_->Send(); |
| if (h2_send_result != 0) { |
| QUICHE_LOG(ERROR) << "h2 adapter failed to send"; |
| Abort(); |
| return false; |
| } |
| return true; |
| } |
| |
| bool MasqueH2Connection::OnEndHeadersForStream(Http2StreamId stream_id) { |
| MasqueH2Stream *stream = GetOrCreateH2Stream(stream_id); |
| QUICHE_LOG(INFO) << "OnEndHeadersForStream " << stream_id |
| << " headers: " << stream->received_headers.DebugString(); |
| return true; |
| } |
| |
| void MasqueH2Connection::SendResponse(int32_t stream_id, |
| const quiche::HttpHeaderBlock &headers, |
| const std::string &body) { |
| MasqueH2Stream *stream = GetOrCreateH2Stream(stream_id); |
| std::vector<Header> h2_headers = ConvertHeaders(headers); |
| stream->body_to_send = body; |
| if (h2_adapter_->SubmitResponse( |
| stream_id, h2_headers, |
| /*end_stream=*/stream->body_to_send.empty()) != 0) { |
| QUICHE_LOG(ERROR) << "Failed to submit response for stream " << stream_id; |
| Abort(); |
| } |
| } |
| |
| int32_t MasqueH2Connection::SendRequest(const quiche::HttpHeaderBlock &headers, |
| const std::string &body) { |
| if (is_server_) { |
| QUICHE_LOG(FATAL) << "Server cannot send requests"; |
| } |
| if (!h2_adapter_) { |
| QUICHE_LOG(ERROR) << "Connection is not ready to send requests yet"; |
| return -1; |
| } |
| std::vector<Header> h2_headers = ConvertHeaders(headers); |
| QUICHE_LOG(INFO) << "Sending request with body of length " << body.size() |
| << ", headers: " << headers.DebugString(); |
| int32_t stream_id = |
| h2_adapter_->SubmitRequest(h2_headers, /*end_stream=*/body.empty(), |
| /*user_data=*/nullptr); |
| if (stream_id < 0) { |
| QUICHE_LOG(ERROR) << "Failed to submit request"; |
| Abort(); |
| return -1; |
| } |
| GetOrCreateH2Stream(stream_id)->body_to_send = body; |
| return stream_id; |
| } |
| |
| std::vector<Header> MasqueH2Connection::ConvertHeaders( |
| const quiche::HttpHeaderBlock &headers) { |
| std::vector<Header> h2_headers; |
| for (const auto &[key, value] : headers) { |
| h2_headers.push_back({http2::adapter::HeaderRep(std::string(key)), |
| http2::adapter::HeaderRep(std::string(value))}); |
| } |
| return h2_headers; |
| } |
| |
| bool MasqueH2Connection::OnBeginDataForStream(Http2StreamId stream_id, |
| size_t payload_length) { |
| QUICHE_DVLOG(1) << "OnBeginDataForStream " << stream_id |
| << " payload_length: " << payload_length; |
| return true; |
| } |
| |
| bool MasqueH2Connection::OnDataPaddingLength(Http2StreamId stream_id, |
| size_t padding_length) { |
| QUICHE_DVLOG(1) << "OnDataPaddingLength stream_id: " << stream_id |
| << " padding_length: " << padding_length; |
| return true; |
| } |
| |
| bool MasqueH2Connection::OnDataForStream(Http2StreamId stream_id, |
| absl::string_view data) { |
| QUICHE_DVLOG(1) << "OnDataForStream " << stream_id |
| << " data length: " << data.size(); |
| GetOrCreateH2Stream(stream_id)->received_body.append(data); |
| return true; |
| } |
| |
| bool MasqueH2Connection::OnEndStream(Http2StreamId stream_id) { |
| MasqueH2Stream *stream = GetOrCreateH2Stream(stream_id); |
| QUICHE_LOG(INFO) << "Received END_STREAM for stream " << stream_id |
| << " body length: " << stream->received_body.size() |
| << std::endl |
| << stream->received_body; |
| if (is_server_) { |
| visitor_->OnRequest(this, stream_id, stream->received_headers, |
| stream->received_body); |
| } else { |
| visitor_->OnResponse(this, stream_id, stream->received_headers, |
| stream->received_body); |
| } |
| return true; |
| } |
| |
| void MasqueH2Connection::OnRstStream(Http2StreamId stream_id, |
| Http2ErrorCode error_code) { |
| QUICHE_LOG(INFO) << "Stream " << stream_id << " reset with error code " |
| << Http2ErrorCodeToString(error_code); |
| } |
| |
| bool MasqueH2Connection::OnCloseStream(Http2StreamId stream_id, |
| Http2ErrorCode error_code) { |
| QUICHE_LOG(INFO) << "Stream " << stream_id << " closed with error code " |
| << Http2ErrorCodeToString(error_code); |
| h2_streams_.erase(stream_id); |
| return true; |
| } |
| |
| void MasqueH2Connection::OnPriorityForStream(Http2StreamId stream_id, |
| Http2StreamId parent_stream_id, |
| int weight, bool exclusive) { |
| QUICHE_LOG(INFO) << "Stream " << stream_id << " received priority " << weight |
| << (exclusive ? " exclusive" : "") << " parent " |
| << parent_stream_id; |
| } |
| |
| void MasqueH2Connection::OnPing(Http2PingId ping_id, bool is_ack) { |
| QUICHE_LOG(INFO) << "Received ping " << ping_id << (is_ack ? " ack" : ""); |
| } |
| |
| void MasqueH2Connection::OnPushPromiseForStream( |
| Http2StreamId stream_id, Http2StreamId promised_stream_id) { |
| QUICHE_LOG(INFO) << "Stream " << stream_id |
| << " received push promise for stream " |
| << promised_stream_id; |
| } |
| |
| bool MasqueH2Connection::OnGoAway(Http2StreamId last_accepted_stream_id, |
| Http2ErrorCode error_code, |
| absl::string_view opaque_data) { |
| QUICHE_LOG(INFO) << "Received GOAWAY frame with last_accepted_stream_id: " |
| << last_accepted_stream_id |
| << " error_code: " << Http2ErrorCodeToString(error_code) |
| << " opaque_data length: " << opaque_data.size(); |
| return true; |
| } |
| |
| void MasqueH2Connection::OnWindowUpdate(Http2StreamId stream_id, |
| int window_increment) { |
| QUICHE_LOG(INFO) << "Stream " << stream_id << " received window update " |
| << window_increment; |
| } |
| |
| int MasqueH2Connection::OnBeforeFrameSent(uint8_t frame_type, |
| Http2StreamId stream_id, |
| size_t length, uint8_t flags) { |
| QUICHE_DVLOG(1) << "OnBeforeFrameSent frame_type: " |
| << static_cast<int>(frame_type) << " stream_id: " << stream_id |
| << " length: " << length |
| << " flags: " << static_cast<int>(flags); |
| return 0; |
| } |
| |
| int MasqueH2Connection::OnFrameSent(uint8_t frame_type, Http2StreamId stream_id, |
| size_t length, uint8_t flags, |
| uint32_t error_code) { |
| QUICHE_DVLOG(1) << "OnFrameSent frame_type: " << static_cast<int>(frame_type) |
| << " stream_id: " << stream_id << " length: " << length |
| << " flags: " << static_cast<int>(flags) |
| << " error_code: " << error_code; |
| return 0; |
| } |
| |
| bool MasqueH2Connection::OnInvalidFrame(Http2StreamId stream_id, |
| InvalidFrameError error) { |
| QUICHE_LOG(INFO) << "Stream " << stream_id << " received invalid frame error " |
| << http2::adapter::InvalidFrameErrorToString(error); |
| return true; |
| } |
| |
| void MasqueH2Connection::OnBeginMetadataForStream(Http2StreamId stream_id, |
| size_t payload_length) { |
| QUICHE_LOG(INFO) << "Stream " << stream_id |
| << " about to receive metadata of length " << payload_length; |
| } |
| |
| bool MasqueH2Connection::OnMetadataForStream(Http2StreamId stream_id, |
| absl::string_view metadata) { |
| QUICHE_LOG(INFO) << "Stream " << stream_id << " received metadata of length " |
| << metadata.size(); |
| return true; |
| } |
| |
| bool MasqueH2Connection::OnMetadataEndForStream(Http2StreamId stream_id) { |
| QUICHE_LOG(INFO) << "Stream " << stream_id << " done receiving metadata"; |
| return true; |
| } |
| |
| void MasqueH2Connection::OnErrorDebug(absl::string_view message) { |
| QUICHE_LOG(ERROR) << "OnErrorDebug: " << message; |
| } |
| |
| MasqueH2Connection::MasqueH2Stream *MasqueH2Connection::GetOrCreateH2Stream( |
| Http2StreamId stream_id) { |
| auto it = h2_streams_.find(stream_id); |
| if (it != h2_streams_.end()) { |
| return it->second.get(); |
| } |
| return h2_streams_.insert({stream_id, std::make_unique<MasqueH2Stream>()}) |
| .first->second.get(); |
| } |
| |
| void PrintSSLError(const char *msg, int ssl_err, int ret) { |
| switch (ssl_err) { |
| case SSL_ERROR_SSL: |
| QUICHE_LOG(ERROR) << msg << ": " |
| << ERR_reason_error_string(ERR_peek_error()); |
| break; |
| case SSL_ERROR_SYSCALL: |
| if (ret == 0) { |
| QUICHE_LOG(ERROR) << msg << ": peer closed connection"; |
| } else { |
| QUICHE_LOG(ERROR) << msg << ": " << strerror(errno); |
| } |
| break; |
| case SSL_ERROR_ZERO_RETURN: |
| QUICHE_LOG(ERROR) << msg << ": received close_notify"; |
| break; |
| default: |
| QUICHE_LOG(ERROR) << msg << ": unexpected error: " |
| << SSL_error_description(ssl_err); |
| break; |
| } |
| ERR_print_errors_fp(stderr); |
| } |
| |
| } // namespace quic |
