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// Copyright (c) 2012 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 "net/tools/quic/quic_spdy_client_stream.h"
#include "base/logging.h"
#include "base/stl_util.h"
#include "base/strings/string_number_conversions.h"
#include "net/quic/quic_alarm.h"
#include "net/quic/quic_client_promised_info.h"
#include "net/quic/spdy_utils.h"
#include "net/spdy/spdy_protocol.h"
#include "net/tools/quic/quic_client_session.h"
#include "net/tools/quic/spdy_balsa_utils.h"
using base::StringPiece;
using std::string;
using base::StringToInt;
namespace net {
QuicSpdyClientStream::QuicSpdyClientStream(QuicStreamId id,
QuicClientSession* session)
: QuicSpdyStream(id, session),
content_length_(-1),
response_code_(0),
header_bytes_read_(0),
header_bytes_written_(0),
allow_bidirectional_data_(false),
session_(session) {}
QuicSpdyClientStream::~QuicSpdyClientStream() {}
void QuicSpdyClientStream::OnStreamFrame(const QuicStreamFrame& frame) {
if (!allow_bidirectional_data_ && !write_side_closed()) {
DVLOG(1) << "Got a response before the request was complete. "
<< "Aborting request.";
CloseWriteSide();
}
QuicSpdyStream::OnStreamFrame(frame);
}
void QuicSpdyClientStream::OnInitialHeadersComplete(bool fin,
size_t frame_len) {
QuicSpdyStream::OnInitialHeadersComplete(fin, frame_len);
DCHECK(headers_decompressed());
header_bytes_read_ += frame_len;
if (!SpdyUtils::ParseHeaders(decompressed_headers().data(),
decompressed_headers().length(),
&content_length_, &response_headers_)) {
Reset(QUIC_BAD_APPLICATION_PAYLOAD);
return;
}
string status = response_headers_[":status"].as_string();
size_t end = status.find(" ");
if (end != string::npos) {
status.erase(end);
}
if (!StringToInt(status, &response_code_)) {
// Invalid response code.
Reset(QUIC_BAD_APPLICATION_PAYLOAD);
return;
}
MarkHeadersConsumed(decompressed_headers().length());
DVLOG(1) << "headers complete for stream " << id();
session_->OnInitialHeadersComplete(id(), response_headers_);
}
void QuicSpdyClientStream::OnTrailingHeadersComplete(bool fin,
size_t frame_len) {
QuicSpdyStream::OnTrailingHeadersComplete(fin, frame_len);
MarkTrailersConsumed(decompressed_trailers().length());
}
void QuicSpdyClientStream::OnPromiseHeadersComplete(QuicStreamId promised_id,
size_t frame_len) {
header_bytes_read_ += frame_len;
int content_length = -1;
SpdyHeaderBlock promise_headers;
if (!SpdyUtils::ParseHeaders(decompressed_headers().data(),
decompressed_headers().length(), &content_length,
&promise_headers)) {
Reset(QUIC_BAD_APPLICATION_PAYLOAD);
return;
}
MarkHeadersConsumed(decompressed_headers().length());
session_->HandlePromised(promised_id, promise_headers);
}
void QuicSpdyClientStream::OnDataAvailable() {
if (FLAGS_quic_supports_push_promise) {
// For push streams, visitor will not be set until the rendezvous
// between server promise and client request is complete.
if (visitor() == nullptr)
return;
}
while (HasBytesToRead()) {
struct iovec iov;
if (GetReadableRegions(&iov, 1) == 0) {
// No more data to read.
break;
}
DVLOG(1) << "Client processed " << iov.iov_len << " bytes for stream "
<< id();
data_.append(static_cast<char*>(iov.iov_base), iov.iov_len);
if (content_length_ >= 0 &&
static_cast<int>(data_.size()) > content_length_) {
Reset(QUIC_BAD_APPLICATION_PAYLOAD);
return;
}
MarkConsumed(iov.iov_len);
}
if (sequencer()->IsClosed()) {
OnFinRead();
} else {
sequencer()->SetUnblocked();
}
}
size_t QuicSpdyClientStream::SendRequest(const SpdyHeaderBlock& headers,
StringPiece body,
bool fin) {
bool send_fin_with_headers = fin && body.empty();
size_t bytes_sent = body.size();
header_bytes_written_ = WriteHeaders(headers, send_fin_with_headers, nullptr);
bytes_sent += header_bytes_written_;
if (!body.empty()) {
WriteOrBufferData(body, fin, nullptr);
}
return bytes_sent;
}
void QuicSpdyClientStream::SendBody(const string& data, bool fin) {
SendBody(data, fin, nullptr);
}
void QuicSpdyClientStream::SendBody(const string& data,
bool fin,
QuicAckListenerInterface* listener) {
WriteOrBufferData(data, fin, listener);
}
} // namespace net
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