LCOV - code coverage report
Current view: top level - source/common/quic - envoy_quic_client_stream.cc (source / functions) Hit Total Coverage
Test: coverage.dat Lines: 0 385 0.0 %
Date: 2024-01-05 06:35:25 Functions: 0 30 0.0 %

          Line data    Source code
       1             : #include "source/common/quic/envoy_quic_client_stream.h"
       2             : 
       3             : #include "source/common/buffer/buffer_impl.h"
       4             : #include "source/common/common/assert.h"
       5             : #include "source/common/common/enum_to_int.h"
       6             : #include "source/common/http/codes.h"
       7             : #include "source/common/http/header_map_impl.h"
       8             : #include "source/common/http/header_utility.h"
       9             : #include "source/common/http/utility.h"
      10             : #include "source/common/quic/envoy_quic_client_session.h"
      11             : #include "source/common/quic/envoy_quic_utils.h"
      12             : 
      13             : #include "quiche/quic/core/http/quic_header_list.h"
      14             : #include "quiche/quic/core/quic_session.h"
      15             : #include "quiche/spdy/core/http2_header_block.h"
      16             : 
      17             : namespace Envoy {
      18             : namespace Quic {
      19             : 
      20             : EnvoyQuicClientStream::EnvoyQuicClientStream(
      21             :     quic::QuicStreamId id, quic::QuicSpdyClientSession* client_session, quic::StreamType type,
      22             :     Http::Http3::CodecStats& stats,
      23             :     const envoy::config::core::v3::Http3ProtocolOptions& http3_options)
      24             :     : quic::QuicSpdyClientStream(id, client_session, type),
      25             :       EnvoyQuicStream(
      26             :           // Flow control receive window should be larger than 8k so that the send buffer can fully
      27             :           // utilize congestion control window before it reaches the high watermark.
      28             :           static_cast<uint32_t>(GetReceiveWindow().value()), *filterManagerConnection(),
      29           0 :           [this]() { runLowWatermarkCallbacks(); }, [this]() { runHighWatermarkCallbacks(); },
      30           0 :           stats, http3_options) {
      31           0 :   ASSERT(static_cast<uint32_t>(GetReceiveWindow().value()) > 8 * 1024,
      32           0 :          "Send buffer limit should be larger than 8KB.");
      33           0 : }
      34             : 
      35             : Http::Status EnvoyQuicClientStream::encodeHeaders(const Http::RequestHeaderMap& headers,
      36           0 :                                                   bool end_stream) {
      37           0 :   ENVOY_STREAM_LOG(debug, "encodeHeaders: (end_stream={}) {}.", *this, end_stream, headers);
      38           0 : #ifndef ENVOY_ENABLE_UHV
      39             :   // Headers are now validated by UHV before encoding by the codec. Two checks below are not needed
      40             :   // when UHV is enabled.
      41             :   //
      42             :   // Required headers must be present. This can only happen by some erroneous processing after the
      43             :   // downstream codecs decode.
      44           0 :   RETURN_IF_ERROR(Http::HeaderUtility::checkRequiredRequestHeaders(headers));
      45             :   // Verify that a filter hasn't added an invalid header key or value.
      46           0 :   RETURN_IF_ERROR(Http::HeaderUtility::checkValidRequestHeaders(headers));
      47           0 : #endif
      48             : 
      49           0 :   if (write_side_closed()) {
      50           0 :     return absl::CancelledError("encodeHeaders is called on write-closed stream.");
      51           0 :   }
      52             : 
      53           0 :   local_end_stream_ = end_stream;
      54           0 :   SendBufferMonitor::ScopedWatermarkBufferUpdater updater(this, this);
      55           0 :   spdy::Http2HeaderBlock spdy_headers;
      56           0 : #ifndef ENVOY_ENABLE_UHV
      57             :   // Extended CONNECT to H/1 upgrade transformation has moved to UHV
      58           0 :   if (Runtime::runtimeFeatureEnabled("envoy.reloadable_features.use_http3_header_normalisation") &&
      59           0 :       Http::Utility::isUpgrade(headers)) {
      60             :     // In Envoy, both upgrade requests and extended CONNECT requests are
      61             :     // represented as their HTTP/1 forms, regardless of the HTTP version used.
      62             :     // Therefore, these need to be transformed into their HTTP/3 form, before
      63             :     // sending them.
      64           0 :     upgrade_protocol_ = std::string(headers.getUpgradeValue());
      65           0 :     Http::RequestHeaderMapPtr modified_headers =
      66           0 :         Http::createHeaderMap<Http::RequestHeaderMapImpl>(headers);
      67           0 :     Http::Utility::transformUpgradeRequestFromH1toH3(*modified_headers);
      68           0 :     spdy_headers = envoyHeadersToHttp2HeaderBlock(*modified_headers);
      69           0 :   } else if (headers.Method()) {
      70           0 :     spdy_headers = envoyHeadersToHttp2HeaderBlock(headers);
      71           0 :     if (headers.Method()->value() == "CONNECT") {
      72           0 :       Http::RequestHeaderMapPtr modified_headers =
      73           0 :           Http::createHeaderMap<Http::RequestHeaderMapImpl>(headers);
      74           0 :       modified_headers->remove(Http::Headers::get().Scheme);
      75           0 :       modified_headers->remove(Http::Headers::get().Path);
      76           0 :       modified_headers->remove(Http::Headers::get().Protocol);
      77           0 :       spdy_headers = envoyHeadersToHttp2HeaderBlock(*modified_headers);
      78           0 :     } else if (headers.Method()->value() == "HEAD") {
      79           0 :       sent_head_request_ = true;
      80           0 :     }
      81           0 :   }
      82           0 :   if (spdy_headers.empty()) {
      83           0 :     spdy_headers = envoyHeadersToHttp2HeaderBlock(headers);
      84           0 :   }
      85             : #else
      86             :   spdy_headers = envoyHeadersToHttp2HeaderBlock(headers);
      87             :   if (headers.Method()->value() == "HEAD") {
      88             :     sent_head_request_ = true;
      89             :   }
      90             : #endif
      91           0 : #ifdef ENVOY_ENABLE_HTTP_DATAGRAMS
      92           0 :   if (Runtime::runtimeFeatureEnabled("envoy.reloadable_features.enable_connect_udp_support") &&
      93           0 :       (Http::HeaderUtility::isCapsuleProtocol(headers) ||
      94           0 :        Http::HeaderUtility::isConnectUdpRequest(headers))) {
      95           0 :     useCapsuleProtocol();
      96           0 :     if (Http::HeaderUtility::isConnectUdpRequest(headers)) {
      97             :       // HTTP/3 Datagrams sent over CONNECT-UDP are already congestion controlled, so make it
      98             :       // bypass the default Datagram queue.
      99           0 :       session()->SetForceFlushForDefaultQueue(true);
     100           0 :     }
     101           0 :   }
     102           0 : #endif
     103           0 :   {
     104           0 :     IncrementalBytesSentTracker tracker(*this, *mutableBytesMeter(), true);
     105           0 :     size_t bytes_sent = WriteHeaders(std::move(spdy_headers), end_stream, nullptr);
     106           0 :     ENVOY_BUG(bytes_sent != 0, "Failed to encode headers.");
     107           0 :   }
     108             : 
     109           0 :   if (local_end_stream_) {
     110           0 :     if (codec_callbacks_) {
     111           0 :       codec_callbacks_->onCodecEncodeComplete();
     112           0 :     }
     113           0 :     onLocalEndStream();
     114           0 :   }
     115           0 :   return Http::okStatus();
     116           0 : }
     117             : 
     118           0 : void EnvoyQuicClientStream::encodeData(Buffer::Instance& data, bool end_stream) {
     119           0 :   ENVOY_STREAM_LOG(debug, "encodeData (end_stream={}) of {} bytes.", *this, end_stream,
     120           0 :                    data.length());
     121           0 :   const bool has_data = data.length() > 0;
     122           0 :   if (!has_data && !end_stream) {
     123           0 :     return;
     124           0 :   }
     125           0 :   if (write_side_closed()) {
     126           0 :     IS_ENVOY_BUG("encodeData is called on write-closed stream.");
     127           0 :     return;
     128           0 :   }
     129           0 :   ASSERT(!local_end_stream_);
     130           0 :   local_end_stream_ = end_stream;
     131           0 :   SendBufferMonitor::ScopedWatermarkBufferUpdater updater(this, this);
     132           0 : #ifdef ENVOY_ENABLE_HTTP_DATAGRAMS
     133           0 :   if (http_datagram_handler_) {
     134           0 :     IncrementalBytesSentTracker tracker(*this, *mutableBytesMeter(), false);
     135           0 :     if (!http_datagram_handler_->encodeCapsuleFragment(data.toString(), end_stream)) {
     136           0 :       Reset(quic::QUIC_BAD_APPLICATION_PAYLOAD);
     137           0 :       return;
     138           0 :     }
     139           0 :   } else {
     140           0 : #endif
     141           0 :     Buffer::RawSliceVector raw_slices = data.getRawSlices();
     142           0 :     absl::InlinedVector<quiche::QuicheMemSlice, 4> quic_slices;
     143           0 :     quic_slices.reserve(raw_slices.size());
     144           0 :     for (auto& slice : raw_slices) {
     145           0 :       ASSERT(slice.len_ != 0);
     146             :       // Move each slice into a stand-alone buffer.
     147             :       // TODO(danzh): investigate the cost of allocating one buffer per slice.
     148             :       // If it turns out to be expensive, add a new function to free data in the middle in buffer
     149             :       // interface and re-design QuicheMemSliceImpl.
     150           0 :       if (!Runtime::runtimeFeatureEnabled(
     151           0 :               "envoy.reloadable_features.quiche_use_mem_slice_releasor_api")) {
     152           0 :         quic_slices.emplace_back(quiche::QuicheMemSlice::InPlace(), data, slice.len_);
     153           0 :       } else {
     154           0 :         auto single_slice_buffer = std::make_unique<Buffer::OwnedImpl>();
     155           0 :         single_slice_buffer->move(data, slice.len_);
     156           0 :         quic_slices.emplace_back(
     157           0 :             reinterpret_cast<char*>(slice.mem_), slice.len_,
     158           0 :             [single_slice_buffer = std::move(single_slice_buffer)](const char*) mutable {
     159             :               // Free this memory explicitly when the callback is invoked.
     160           0 :               single_slice_buffer = nullptr;
     161           0 :             });
     162           0 :       }
     163           0 :     }
     164           0 :     quic::QuicConsumedData result{0, false};
     165           0 :     absl::Span<quiche::QuicheMemSlice> span(quic_slices);
     166           0 :     {
     167           0 :       IncrementalBytesSentTracker tracker(*this, *mutableBytesMeter(), false);
     168           0 :       result = WriteBodySlices(span, end_stream);
     169           0 :     }
     170             :     // QUIC stream must take all.
     171           0 :     if (result.bytes_consumed == 0 && has_data) {
     172           0 :       IS_ENVOY_BUG(fmt::format("Send buffer didn't take all the data. Stream is write {} with {} "
     173           0 :                                "bytes in send buffer. Current write was rejected.",
     174           0 :                                write_side_closed() ? "closed" : "open", BufferedDataBytes()));
     175           0 :       Reset(quic::QUIC_BAD_APPLICATION_PAYLOAD);
     176           0 :       return;
     177           0 :     }
     178           0 : #ifdef ENVOY_ENABLE_HTTP_DATAGRAMS
     179           0 :   }
     180           0 : #endif
     181           0 :   if (local_end_stream_) {
     182           0 :     if (codec_callbacks_) {
     183           0 :       codec_callbacks_->onCodecEncodeComplete();
     184           0 :     }
     185           0 :     onLocalEndStream();
     186           0 :   }
     187           0 : }
     188             : 
     189           0 : void EnvoyQuicClientStream::encodeTrailers(const Http::RequestTrailerMap& trailers) {
     190           0 :   ENVOY_STREAM_LOG(debug, "encodeTrailers: {}.", *this, trailers);
     191           0 :   if (write_side_closed()) {
     192           0 :     IS_ENVOY_BUG("encodeTrailers is called on write-closed stream.");
     193           0 :     return;
     194           0 :   }
     195           0 :   ASSERT(!local_end_stream_);
     196           0 :   local_end_stream_ = true;
     197           0 :   ScopedWatermarkBufferUpdater updater(this, this);
     198             : 
     199           0 :   {
     200           0 :     IncrementalBytesSentTracker tracker(*this, *mutableBytesMeter(), true);
     201           0 :     size_t bytes_sent = WriteTrailers(envoyHeadersToHttp2HeaderBlock(trailers), nullptr);
     202           0 :     ENVOY_BUG(bytes_sent != 0, "Failed to encode trailers");
     203           0 :   }
     204             : 
     205           0 :   if (codec_callbacks_) {
     206           0 :     codec_callbacks_->onCodecEncodeComplete();
     207           0 :   }
     208           0 :   onLocalEndStream();
     209           0 : }
     210             : 
     211           0 : void EnvoyQuicClientStream::encodeMetadata(const Http::MetadataMapVector& /*metadata_map_vector*/) {
     212             :   // Metadata Frame is not supported in QUICHE.
     213           0 :   ENVOY_STREAM_LOG(debug, "METADATA is not supported in Http3.", *this);
     214           0 :   stats_.metadata_not_supported_error_.inc();
     215           0 : }
     216             : 
     217           0 : void EnvoyQuicClientStream::resetStream(Http::StreamResetReason reason) {
     218           0 : #ifdef ENVOY_ENABLE_HTTP_DATAGRAMS
     219           0 :   if (http_datagram_handler_) {
     220           0 :     UnregisterHttp3DatagramVisitor();
     221           0 :   }
     222           0 : #endif
     223           0 :   Reset(envoyResetReasonToQuicRstError(reason));
     224           0 : }
     225             : 
     226           0 : void EnvoyQuicClientStream::switchStreamBlockState() {
     227             :   // From when the callback got scheduled till now, readDisable() might have blocked and unblocked
     228             :   // the stream multiple times, but those actions haven't taken any effect yet, and only the last
     229             :   // state of read_disable_counter_ determines whether to unblock or block the quic stream. Unlike
     230             :   // Envoy readDisable() the quic stream gets blocked/unblocked based on the most recent call. So a
     231             :   // stream will be blocked upon SetBlockedUntilFlush() no matter how many times SetUnblocked() was
     232             :   // called before, and vice versa.
     233           0 :   if (read_disable_counter_ > 0) {
     234           0 :     sequencer()->SetBlockedUntilFlush();
     235           0 :   } else {
     236           0 :     sequencer()->SetUnblocked();
     237           0 :   }
     238           0 : }
     239             : 
     240             : void EnvoyQuicClientStream::OnInitialHeadersComplete(bool fin, size_t frame_len,
     241           0 :                                                      const quic::QuicHeaderList& header_list) {
     242           0 :   mutableBytesMeter()->addHeaderBytesReceived(frame_len);
     243           0 :   if (read_side_closed()) {
     244           0 :     return;
     245           0 :   }
     246           0 :   quic::QuicSpdyStream::OnInitialHeadersComplete(fin, frame_len, header_list);
     247           0 :   if (read_side_closed()) {
     248           0 :     return;
     249           0 :   }
     250             : 
     251           0 :   if (!headers_decompressed() || header_list.empty()) {
     252           0 :     onStreamError(!http3_options_.override_stream_error_on_invalid_http_message().value(),
     253           0 :                   quic::QUIC_BAD_APPLICATION_PAYLOAD);
     254           0 :     return;
     255           0 :   }
     256             : 
     257           0 :   ENVOY_STREAM_LOG(debug, "Received headers: {}.", *this, header_list.DebugString());
     258           0 :   if (fin) {
     259           0 :     end_stream_decoded_ = true;
     260           0 :   }
     261           0 :   saw_regular_headers_ = false;
     262           0 :   quic::QuicRstStreamErrorCode transform_rst = quic::QUIC_STREAM_NO_ERROR;
     263           0 :   auto client_session = static_cast<EnvoyQuicClientSession*>(session());
     264           0 :   std::unique_ptr<Http::ResponseHeaderMapImpl> headers =
     265           0 :       quicHeadersToEnvoyHeaders<Http::ResponseHeaderMapImpl>(
     266           0 :           header_list, *this, client_session->max_inbound_header_list_size(),
     267           0 :           filterManagerConnection()->maxIncomingHeadersCount(), details_, transform_rst);
     268           0 :   if (headers == nullptr) {
     269           0 :     onStreamError(close_connection_upon_invalid_header_, transform_rst);
     270           0 :     return;
     271           0 :   }
     272             : 
     273           0 :   const absl::optional<uint64_t> optional_status =
     274           0 :       Http::Utility::getResponseStatusOrNullopt(*headers);
     275           0 : #ifndef ENVOY_ENABLE_UHV
     276           0 :   if (!optional_status.has_value()) {
     277           0 :     details_ = Http3ResponseCodeDetailValues::invalid_http_header;
     278           0 :     onStreamError(!http3_options_.override_stream_error_on_invalid_http_message().value(),
     279           0 :                   quic::QUIC_BAD_APPLICATION_PAYLOAD);
     280           0 :     return;
     281           0 :   }
     282             : 
     283           0 :   if (Runtime::runtimeFeatureEnabled("envoy.reloadable_features.use_http3_header_normalisation") &&
     284           0 :       !upgrade_protocol_.empty()) {
     285           0 :     Http::Utility::transformUpgradeResponseFromH3toH1(*headers, upgrade_protocol_);
     286           0 :   }
     287             : #else
     288             :   // Extended CONNECT to H/1 upgrade transformation has moved to UHV
     289             :   // In Envoy, both upgrade requests and extended CONNECT requests are
     290             :   // represented as their HTTP/1 forms, regardless of the HTTP version used.
     291             :   // Therefore, these need to be transformed into their HTTP/1 form.
     292             : 
     293             :   // In UHV mode the :status header at this point can be malformed, as it is validated
     294             :   // later on in the response_decoder_.decodeHeaders() call.
     295             :   // Account for this here.
     296             :   if (!optional_status.has_value()) {
     297             :     // In case the status is invalid or missing, the response_decoder_.decodeHeaders() will fail the
     298             :     // request
     299             :     response_decoder_->decodeHeaders(std::move(headers), fin);
     300             :     ConsumeHeaderList();
     301             :     return;
     302             :   }
     303             : #endif
     304             : 
     305           0 :   const uint64_t status = optional_status.value();
     306             :   // TODO(#29071) determine how to handle 101, since it is not supported by HTTP/2
     307           0 :   if (Http::CodeUtility::is1xx(status)) {
     308             :     // These are Informational 1xx headers, not the actual response headers.
     309           0 :     set_headers_decompressed(false);
     310           0 :   }
     311             : 
     312           0 :   const bool is_special_1xx = Http::HeaderUtility::isSpecial1xx(*headers);
     313           0 :   if (is_special_1xx && !decoded_1xx_) {
     314             :     // This is 100 Continue, only decode it once to support Expect:100-Continue header.
     315           0 :     decoded_1xx_ = true;
     316           0 :     response_decoder_->decode1xxHeaders(std::move(headers));
     317           0 :   } else if (!is_special_1xx) {
     318           0 :     response_decoder_->decodeHeaders(std::move(headers),
     319           0 :                                      /*end_stream=*/fin);
     320           0 :     if (status == enumToInt(Http::Code::NotModified)) {
     321           0 :       got_304_response_ = true;
     322           0 :     }
     323           0 :   }
     324             : 
     325           0 :   ConsumeHeaderList();
     326           0 : }
     327             : 
     328           0 : void EnvoyQuicClientStream::OnStreamFrame(const quic::QuicStreamFrame& frame) {
     329           0 :   uint64_t highest_byte_received = frame.data_length + frame.offset;
     330           0 :   if (highest_byte_received > bytesMeter()->wireBytesReceived()) {
     331           0 :     mutableBytesMeter()->addWireBytesReceived(highest_byte_received -
     332           0 :                                               bytesMeter()->wireBytesReceived());
     333           0 :   }
     334           0 :   quic::QuicSpdyClientStream::OnStreamFrame(frame);
     335           0 : }
     336             : 
     337           0 : bool EnvoyQuicClientStream::OnStopSending(quic::QuicResetStreamError error) {
     338             :   // Only called in IETF Quic to close write side.
     339           0 :   ENVOY_STREAM_LOG(debug, "received STOP_SENDING with reset code={}", *this, error.internal_code());
     340           0 :   bool end_stream_encoded = local_end_stream_;
     341             :   // This call will close write.
     342           0 :   if (!quic::QuicSpdyClientStream::OnStopSending(error)) {
     343           0 :     return false;
     344           0 :   }
     345             : 
     346           0 :   stats_.rx_reset_.inc();
     347             : 
     348           0 :   if (read_side_closed() && !end_stream_encoded) {
     349             :     // If both directions are closed but end stream hasn't been encoded yet, notify reset callbacks.
     350             :     // Treat this as a remote reset, since the stream will be closed in both directions.
     351           0 :     runResetCallbacks(quicRstErrorToEnvoyRemoteResetReason(error.internal_code()));
     352           0 :   }
     353           0 :   return true;
     354           0 : }
     355             : 
     356           0 : void EnvoyQuicClientStream::OnBodyAvailable() {
     357           0 :   ASSERT(FinishedReadingHeaders());
     358           0 :   if (read_side_closed()) {
     359           0 :     return;
     360           0 :   }
     361             : 
     362           0 :   Buffer::InstancePtr buffer = std::make_unique<Buffer::OwnedImpl>();
     363             :   // TODO(danzh): check Envoy per stream buffer limit.
     364             :   // Currently read out all the data.
     365           0 :   while (HasBytesToRead()) {
     366           0 :     iovec iov;
     367           0 :     int num_regions = GetReadableRegions(&iov, 1);
     368           0 :     ASSERT(num_regions > 0);
     369           0 :     size_t bytes_read = iov.iov_len;
     370           0 :     buffer->add(iov.iov_base, bytes_read);
     371           0 :     MarkConsumed(bytes_read);
     372           0 :   }
     373           0 :   ASSERT(buffer->length() == 0 || !end_stream_decoded_);
     374             : 
     375           0 :   bool fin_read_and_no_trailers = IsDoneReading();
     376             :   // If this call is triggered by an empty frame with FIN which is not from peer
     377             :   // but synthesized by stream itself upon receiving HEADERS with FIN or
     378             :   // TRAILERS, do not deliver end of stream here. Because either decodeHeaders
     379             :   // already delivered it or decodeTrailers will be called.
     380           0 :   bool skip_decoding = (buffer->length() == 0 && !fin_read_and_no_trailers) || end_stream_decoded_;
     381           0 :   if (!skip_decoding) {
     382           0 :     if (fin_read_and_no_trailers) {
     383           0 :       end_stream_decoded_ = true;
     384           0 :     }
     385           0 :     updateReceivedContentBytes(buffer->length(), fin_read_and_no_trailers);
     386           0 :     if (stream_error() != quic::QUIC_STREAM_NO_ERROR) {
     387             :       // A stream error has occurred, stop processing.
     388           0 :       return;
     389           0 :     }
     390           0 :     response_decoder_->decodeData(*buffer, fin_read_and_no_trailers);
     391           0 :   }
     392             : 
     393           0 :   if (!sequencer()->IsClosed() || read_side_closed()) {
     394           0 :     return;
     395           0 :   }
     396             : 
     397             :   // Trailers may arrived earlier and wait to be consumed after reading all the body. Consume it
     398             :   // here.
     399           0 :   maybeDecodeTrailers();
     400             : 
     401           0 :   OnFinRead();
     402           0 : }
     403             : 
     404             : void EnvoyQuicClientStream::OnTrailingHeadersComplete(bool fin, size_t frame_len,
     405           0 :                                                       const quic::QuicHeaderList& header_list) {
     406           0 :   mutableBytesMeter()->addHeaderBytesReceived(frame_len);
     407           0 :   if (read_side_closed()) {
     408           0 :     return;
     409           0 :   }
     410           0 :   ENVOY_STREAM_LOG(debug, "Received trailers: {}.", *this, header_list.DebugString());
     411           0 :   quic::QuicSpdyStream::OnTrailingHeadersComplete(fin, frame_len, header_list);
     412           0 :   ASSERT(trailers_decompressed());
     413           0 :   if (session()->connection()->connected() && !rst_sent()) {
     414           0 :     maybeDecodeTrailers();
     415           0 :   }
     416           0 : }
     417             : 
     418           0 : void EnvoyQuicClientStream::maybeDecodeTrailers() {
     419           0 :   if (sequencer()->IsClosed() && !FinishedReadingTrailers()) {
     420             :     // Only decode trailers after finishing decoding body.
     421           0 :     end_stream_decoded_ = true;
     422           0 :     updateReceivedContentBytes(0, true);
     423           0 :     if (stream_error() != quic::QUIC_STREAM_NO_ERROR) {
     424             :       // A stream error has occurred, stop processing.
     425           0 :       return;
     426           0 :     }
     427           0 :     quic::QuicRstStreamErrorCode transform_rst = quic::QUIC_STREAM_NO_ERROR;
     428           0 :     auto client_session = static_cast<EnvoyQuicClientSession*>(session());
     429           0 :     auto trailers = http2HeaderBlockToEnvoyTrailers<Http::ResponseTrailerMapImpl>(
     430           0 :         received_trailers(), client_session->max_inbound_header_list_size(),
     431           0 :         filterManagerConnection()->maxIncomingHeadersCount(), *this, details_, transform_rst);
     432           0 :     if (trailers == nullptr) {
     433           0 :       onStreamError(close_connection_upon_invalid_header_, transform_rst);
     434           0 :       return;
     435           0 :     }
     436           0 :     response_decoder_->decodeTrailers(std::move(trailers));
     437           0 :     MarkTrailersConsumed();
     438           0 :   }
     439           0 : }
     440             : 
     441           0 : void EnvoyQuicClientStream::OnStreamReset(const quic::QuicRstStreamFrame& frame) {
     442           0 :   ENVOY_STREAM_LOG(debug, "received reset code={}", *this, frame.error_code);
     443           0 :   stats_.rx_reset_.inc();
     444           0 :   bool end_stream_decoded_and_encoded = read_side_closed() && local_end_stream_;
     445             :   // This closes read side in IETF Quic, but doesn't close write side.
     446           0 :   quic::QuicSpdyClientStream::OnStreamReset(frame);
     447           0 :   ASSERT(read_side_closed());
     448           0 :   if (write_side_closed() && !end_stream_decoded_and_encoded) {
     449           0 :     runResetCallbacks(quicRstErrorToEnvoyRemoteResetReason(frame.error_code));
     450           0 :   }
     451           0 : }
     452             : 
     453           0 : void EnvoyQuicClientStream::ResetWithError(quic::QuicResetStreamError error) {
     454           0 :   ENVOY_STREAM_LOG(debug, "sending reset code={}", *this, error.internal_code());
     455           0 :   stats_.tx_reset_.inc();
     456             :   // Upper layers expect calling resetStream() to immediately raise reset callbacks.
     457           0 :   runResetCallbacks(quicRstErrorToEnvoyLocalResetReason(error.internal_code()));
     458           0 :   if (session()->connection()->connected()) {
     459           0 :     quic::QuicSpdyClientStream::ResetWithError(error);
     460           0 :   }
     461           0 : }
     462             : 
     463             : void EnvoyQuicClientStream::OnConnectionClosed(quic::QuicErrorCode error,
     464           0 :                                                quic::ConnectionCloseSource source) {
     465           0 :   if (!end_stream_decoded_) {
     466           0 :     runResetCallbacks(
     467           0 :         source == quic::ConnectionCloseSource::FROM_SELF
     468           0 :             ? quicErrorCodeToEnvoyLocalResetReason(error, session()->OneRttKeysAvailable())
     469           0 :             : quicErrorCodeToEnvoyRemoteResetReason(error));
     470           0 :   }
     471           0 :   quic::QuicSpdyClientStream::OnConnectionClosed(error, source);
     472           0 : }
     473             : 
     474           0 : void EnvoyQuicClientStream::OnClose() {
     475           0 :   destroy();
     476           0 :   quic::QuicSpdyClientStream::OnClose();
     477           0 :   if (isDoingWatermarkAccounting()) {
     478             :     // This is called in the scope of a watermark buffer updater. Clear the
     479             :     // buffer accounting afterwards so that the updater doesn't override the
     480             :     // result.
     481           0 :     return;
     482           0 :   }
     483           0 :   clearWatermarkBuffer();
     484           0 : }
     485             : 
     486           0 : void EnvoyQuicClientStream::clearWatermarkBuffer() {
     487           0 :   if (BufferedDataBytes() > 0) {
     488             :     // If the stream is closed without sending out all buffered data, regard
     489             :     // them as sent now and adjust connection buffer book keeping.
     490           0 :     updateBytesBuffered(BufferedDataBytes(), 0);
     491           0 :   }
     492           0 : }
     493             : 
     494           0 : void EnvoyQuicClientStream::OnCanWrite() {
     495           0 :   SendBufferMonitor::ScopedWatermarkBufferUpdater updater(this, this);
     496           0 :   quic::QuicSpdyClientStream::OnCanWrite();
     497           0 : }
     498             : 
     499           0 : uint32_t EnvoyQuicClientStream::streamId() { return id(); }
     500             : 
     501           0 : Network::Connection* EnvoyQuicClientStream::connection() { return filterManagerConnection(); }
     502             : 
     503           0 : QuicFilterManagerConnectionImpl* EnvoyQuicClientStream::filterManagerConnection() {
     504           0 :   return dynamic_cast<QuicFilterManagerConnectionImpl*>(session());
     505           0 : }
     506             : 
     507             : void EnvoyQuicClientStream::onStreamError(absl::optional<bool> should_close_connection,
     508           0 :                                           quic::QuicRstStreamErrorCode rst_code) {
     509           0 :   if (details_.empty()) {
     510           0 :     details_ = Http3ResponseCodeDetailValues::invalid_http_header;
     511           0 :   }
     512           0 :   bool close_connection_upon_invalid_header;
     513           0 :   if (should_close_connection != absl::nullopt) {
     514           0 :     close_connection_upon_invalid_header = should_close_connection.value();
     515           0 :   } else {
     516           0 :     close_connection_upon_invalid_header =
     517           0 :         !http3_options_.override_stream_error_on_invalid_http_message().value();
     518           0 :   }
     519           0 :   if (close_connection_upon_invalid_header) {
     520           0 :     stream_delegate()->OnStreamError(quic::QUIC_HTTP_FRAME_ERROR, "Invalid headers");
     521           0 :   } else {
     522           0 :     Reset(rst_code);
     523           0 :   }
     524           0 : }
     525             : 
     526           0 : bool EnvoyQuicClientStream::hasPendingData() { return BufferedDataBytes() > 0; }
     527             : 
     528             : #ifdef ENVOY_ENABLE_HTTP_DATAGRAMS
     529             : // TODO(https://github.com/envoyproxy/envoy/issues/23564): Make the stream use Capsule Protocol
     530             : // for CONNECT-UDP support when the headers contain "Capsule-Protocol: ?1" or "Upgrade:
     531             : // connect-udp".
     532           0 : void EnvoyQuicClientStream::useCapsuleProtocol() {
     533           0 :   http_datagram_handler_ = std::make_unique<HttpDatagramHandler>(*this);
     534           0 :   http_datagram_handler_->setStreamDecoder(response_decoder_);
     535           0 :   RegisterHttp3DatagramVisitor(http_datagram_handler_.get());
     536           0 : }
     537             : #endif
     538             : 
     539           0 : void EnvoyQuicClientStream::OnInvalidHeaders() {
     540           0 :   onStreamError(absl::nullopt, quic::QUIC_BAD_APPLICATION_PAYLOAD);
     541           0 : }
     542             : 
     543             : } // namespace Quic
     544             : } // namespace Envoy

Generated by: LCOV version 1.15