stateful_session_filter.cc | Explore in Territory

//
// Copyright 2022 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

#include <grpc/support/port_platform.h>

#include "src/core/ext/filters/stateful_session/stateful_session_filter.h"

#include <string.h>

#include <algorithm>
#include <functional>
#include <memory>
#include <string>
#include <utility>
#include <vector>

#include "absl/strings/escaping.h"
#include "absl/strings/match.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/str_join.h"
#include "absl/strings/str_split.h"
#include "absl/strings/string_view.h"
#include "absl/types/optional.h"

#include <grpc/support/log.h>
#include <grpc/support/time.h>

#include "src/core/ext/filters/stateful_session/stateful_session_service_config_parser.h"
#include "src/core/lib/channel/channel_stack.h"
#include "src/core/lib/channel/context.h"
#include "src/core/lib/config/core_configuration.h"
#include "src/core/lib/debug/trace.h"
#include "src/core/lib/gprpp/crash.h"
#include "src/core/lib/gprpp/time.h"
#include "src/core/lib/promise/context.h"
#include "src/core/lib/promise/map.h"
#include "src/core/lib/promise/pipe.h"
#include "src/core/lib/promise/poll.h"
#include "src/core/lib/resource_quota/arena.h"
#include "src/core/lib/service_config/service_config_call_data.h"
#include "src/core/lib/slice/slice.h"
#include "src/core/lib/transport/metadata_batch.h"
#include "src/core/lib/transport/transport.h"

namespace grpc_core {

TraceFlag grpc_stateful_session_filter_trace(false, "stateful_session_filter");

UniqueTypeName XdsOverrideHostTypeName() { … }

const grpc_channel_filter StatefulSessionFilter::kFilter = …;

absl::StatusOr<StatefulSessionFilter> StatefulSessionFilter::Create(
    const ChannelArgs&, ChannelFilter::Args filter_args) { … }

StatefulSessionFilter::StatefulSessionFilter(ChannelFilter::Args filter_args)
    : … { … }

namespace {

// Adds the set-cookie header to the server initial metadata if needed.
void MaybeUpdateServerInitialMetadata(
    const StatefulSessionMethodParsedConfig::CookieConfig* cookie_config,
    absl::optional<absl::string_view> cookie_value,
    ServerMetadata* server_initial_metadata) { … }

}  // namespace

// Construct a promise for one call.
ArenaPromise<ServerMetadataHandle> StatefulSessionFilter::MakeCallPromise(
    CallArgs call_args, NextPromiseFactory next_promise_factory) { … }

absl::optional<absl::string_view>
StatefulSessionFilter::GetOverrideHostFromCookie(
    const ClientMetadataHandle& client_initial_metadata,
    absl::string_view cookie_name) { … }

void StatefulSessionFilterRegister(CoreConfiguration::Builder* builder) { … }

}  // namespace grpc_core
chromium/third_party/grpc/src/src/core/ext/filters/stateful_session/stateful_session_filter.cc
