blob: 5410c98cbce5153e68b46013976c73342a35f092 [file] [log] [blame]
// Copyright (c) 2015 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 "quic/tools/quic_spdy_client_base.h"
#include <utility>
#include "absl/strings/numbers.h"
#include "absl/strings/string_view.h"
#include "quic/core/crypto/quic_random.h"
#include "quic/core/http/spdy_utils.h"
#include "quic/core/quic_server_id.h"
#include "quic/platform/api/quic_flags.h"
#include "quic/platform/api/quic_logging.h"
#include "common/platform/api/quiche_text_utils.h"
using spdy::Http2HeaderBlock;
namespace quic {
void QuicSpdyClientBase::ClientQuicDataToResend::Resend() {
client_->SendRequest(*headers_, body_, fin_);
headers_ = nullptr;
}
QuicSpdyClientBase::QuicDataToResend::QuicDataToResend(
std::unique_ptr<Http2HeaderBlock> headers,
absl::string_view body,
bool fin)
: headers_(std::move(headers)), body_(body), fin_(fin) {}
QuicSpdyClientBase::QuicDataToResend::~QuicDataToResend() = default;
QuicSpdyClientBase::QuicSpdyClientBase(
const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
const QuicConfig& config,
QuicConnectionHelperInterface* helper,
QuicAlarmFactory* alarm_factory,
std::unique_ptr<NetworkHelper> network_helper,
std::unique_ptr<ProofVerifier> proof_verifier,
std::unique_ptr<SessionCache> session_cache)
: QuicClientBase(server_id,
supported_versions,
config,
helper,
alarm_factory,
std::move(network_helper),
std::move(proof_verifier),
std::move(session_cache)),
store_response_(false),
latest_response_code_(-1),
max_allowed_push_id_(0) {}
QuicSpdyClientBase::~QuicSpdyClientBase() {
// We own the push promise index. We need to explicitly kill
// the session before the push promise index goes out of scope.
ResetSession();
}
QuicSpdyClientSession* QuicSpdyClientBase::client_session() {
return static_cast<QuicSpdyClientSession*>(QuicClientBase::session());
}
const QuicSpdyClientSession* QuicSpdyClientBase::client_session() const {
return static_cast<const QuicSpdyClientSession*>(QuicClientBase::session());
}
void QuicSpdyClientBase::InitializeSession() {
client_session()->Initialize();
client_session()->CryptoConnect();
if (max_allowed_push_id_ > 0 &&
VersionUsesHttp3(client_session()->transport_version())) {
client_session()->SetMaxPushId(max_allowed_push_id_);
}
}
void QuicSpdyClientBase::OnClose(QuicSpdyStream* stream) {
QUICHE_DCHECK(stream != nullptr);
QuicSpdyClientStream* client_stream =
static_cast<QuicSpdyClientStream*>(stream);
const Http2HeaderBlock& response_headers = client_stream->response_headers();
if (response_listener_ != nullptr) {
response_listener_->OnCompleteResponse(stream->id(), response_headers,
client_stream->data());
}
// Store response headers and body.
if (store_response_) {
auto status = response_headers.find(":status");
if (status == response_headers.end()) {
QUIC_LOG(ERROR) << "Missing :status response header";
} else if (!absl::SimpleAtoi(status->second, &latest_response_code_)) {
QUIC_LOG(ERROR) << "Invalid :status response header: " << status->second;
}
latest_response_headers_ = response_headers.DebugString();
preliminary_response_headers_ =
client_stream->preliminary_headers().DebugString();
latest_response_header_block_ = response_headers.Clone();
latest_response_body_ = client_stream->data();
latest_response_trailers_ =
client_stream->received_trailers().DebugString();
}
}
std::unique_ptr<QuicSession> QuicSpdyClientBase::CreateQuicClientSession(
const quic::ParsedQuicVersionVector& supported_versions,
QuicConnection* connection) {
return std::make_unique<QuicSpdyClientSession>(
*config(), supported_versions, connection, server_id(), crypto_config(),
&push_promise_index_);
}
void QuicSpdyClientBase::SendRequest(const Http2HeaderBlock& headers,
absl::string_view body,
bool fin) {
if (GetQuicFlag(FLAGS_quic_client_convert_http_header_name_to_lowercase)) {
QUIC_CODE_COUNT(quic_client_convert_http_header_name_to_lowercase);
Http2HeaderBlock sanitized_headers;
for (const auto& p : headers) {
sanitized_headers[quiche::QuicheTextUtils::ToLower(p.first)] = p.second;
}
SendRequestInternal(std::move(sanitized_headers), body, fin);
} else {
SendRequestInternal(headers.Clone(), body, fin);
}
}
void QuicSpdyClientBase::SendRequestInternal(Http2HeaderBlock sanitized_headers,
absl::string_view body,
bool fin) {
QuicClientPushPromiseIndex::TryHandle* handle;
QuicAsyncStatus rv =
push_promise_index()->Try(sanitized_headers, this, &handle);
if (rv == QUIC_SUCCESS)
return;
if (rv == QUIC_PENDING) {
// May need to retry request if asynchronous rendezvous fails.
AddPromiseDataToResend(sanitized_headers, body, fin);
return;
}
QuicSpdyClientStream* stream = CreateClientStream();
if (stream == nullptr) {
QUIC_BUG_V2(quic_bug_10949_1) << "stream creation failed!";
return;
}
stream->SendRequest(std::move(sanitized_headers), body, fin);
}
void QuicSpdyClientBase::SendRequestAndWaitForResponse(
const Http2HeaderBlock& headers,
absl::string_view body,
bool fin) {
SendRequest(headers, body, fin);
while (WaitForEvents()) {
}
}
void QuicSpdyClientBase::SendRequestsAndWaitForResponse(
const std::vector<std::string>& url_list) {
for (size_t i = 0; i < url_list.size(); ++i) {
Http2HeaderBlock headers;
if (!SpdyUtils::PopulateHeaderBlockFromUrl(url_list[i], &headers)) {
QUIC_BUG_V2(quic_bug_10949_2) << "Unable to create request";
continue;
}
SendRequest(headers, "", true);
}
while (WaitForEvents()) {
}
}
QuicSpdyClientStream* QuicSpdyClientBase::CreateClientStream() {
if (!connected()) {
return nullptr;
}
if (VersionHasIetfQuicFrames(client_session()->transport_version())) {
// Process MAX_STREAMS from peer or wait for liveness testing succeeds.
while (!client_session()->CanOpenNextOutgoingBidirectionalStream()) {
network_helper()->RunEventLoop();
}
}
auto* stream = static_cast<QuicSpdyClientStream*>(
client_session()->CreateOutgoingBidirectionalStream());
if (stream) {
stream->set_visitor(this);
}
return stream;
}
bool QuicSpdyClientBase::goaway_received() const {
return client_session() && client_session()->goaway_received();
}
bool QuicSpdyClientBase::EarlyDataAccepted() {
return client_session()->EarlyDataAccepted();
}
bool QuicSpdyClientBase::ReceivedInchoateReject() {
return client_session()->ReceivedInchoateReject();
}
int QuicSpdyClientBase::GetNumSentClientHellosFromSession() {
return client_session()->GetNumSentClientHellos();
}
int QuicSpdyClientBase::GetNumReceivedServerConfigUpdatesFromSession() {
return client_session()->GetNumReceivedServerConfigUpdates();
}
void QuicSpdyClientBase::MaybeAddQuicDataToResend(
std::unique_ptr<QuicDataToResend> data_to_resend) {
data_to_resend_on_connect_.push_back(std::move(data_to_resend));
}
void QuicSpdyClientBase::ClearDataToResend() {
data_to_resend_on_connect_.clear();
}
void QuicSpdyClientBase::ResendSavedData() {
// Calling Resend will re-enqueue the data, so swap out
// data_to_resend_on_connect_ before iterating.
std::vector<std::unique_ptr<QuicDataToResend>> old_data;
old_data.swap(data_to_resend_on_connect_);
for (const auto& data : old_data) {
data->Resend();
}
}
void QuicSpdyClientBase::AddPromiseDataToResend(const Http2HeaderBlock& headers,
absl::string_view body,
bool fin) {
std::unique_ptr<Http2HeaderBlock> new_headers(
new Http2HeaderBlock(headers.Clone()));
push_promise_data_to_resend_.reset(
new ClientQuicDataToResend(std::move(new_headers), body, fin, this));
}
bool QuicSpdyClientBase::CheckVary(
const Http2HeaderBlock& /*client_request*/,
const Http2HeaderBlock& /*promise_request*/,
const Http2HeaderBlock& /*promise_response*/) {
return true;
}
void QuicSpdyClientBase::OnRendezvousResult(QuicSpdyStream* stream) {
std::unique_ptr<ClientQuicDataToResend> data_to_resend =
std::move(push_promise_data_to_resend_);
if (stream) {
stream->set_visitor(this);
stream->OnBodyAvailable();
} else if (data_to_resend) {
data_to_resend->Resend();
}
}
int QuicSpdyClientBase::latest_response_code() const {
QUIC_BUG_IF_V2(quic_bug_10949_3, !store_response_) << "Response not stored!";
return latest_response_code_;
}
const std::string& QuicSpdyClientBase::latest_response_headers() const {
QUIC_BUG_IF_V2(quic_bug_10949_4, !store_response_) << "Response not stored!";
return latest_response_headers_;
}
const std::string& QuicSpdyClientBase::preliminary_response_headers() const {
QUIC_BUG_IF_V2(quic_bug_10949_5, !store_response_) << "Response not stored!";
return preliminary_response_headers_;
}
const Http2HeaderBlock& QuicSpdyClientBase::latest_response_header_block()
const {
QUIC_BUG_IF_V2(quic_bug_10949_6, !store_response_) << "Response not stored!";
return latest_response_header_block_;
}
const std::string& QuicSpdyClientBase::latest_response_body() const {
QUIC_BUG_IF_V2(quic_bug_10949_7, !store_response_) << "Response not stored!";
return latest_response_body_;
}
const std::string& QuicSpdyClientBase::latest_response_trailers() const {
QUIC_BUG_IF_V2(quic_bug_10949_8, !store_response_) << "Response not stored!";
return latest_response_trailers_;
}
bool QuicSpdyClientBase::HasActiveRequests() {
return client_session()->HasActiveRequestStreams();
}
} // namespace quic