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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/quic/bidirectional_stream_quic_impl.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/location.h" | |
| 9 #include "base/logging.h" | |
| 10 #include "base/timer/timer.h" | |
| 11 #include "net/http/bidirectional_stream_request_info.h" | |
| 12 #include "net/socket/next_proto.h" | |
| 13 #include "net/spdy/spdy_header_block.h" | |
| 14 #include "net/spdy/spdy_http_utils.h" | |
| 15 | |
| 16 namespace net { | |
| 17 | |
| 18 BidirectionalStreamQuicImpl::BidirectionalStreamQuicImpl( | |
| 19 const base::WeakPtr<QuicChromiumClientSession>& session) | |
| 20 : session_(session), | |
| 21 was_handshake_confirmed_(session->IsCryptoHandshakeConfirmed()), | |
| 22 stream_(nullptr), | |
| 23 request_info_(nullptr), | |
| 24 delegate_(nullptr), | |
| 25 response_status_(OK), | |
| 26 negotiated_protocol_(kProtoUnknown), | |
| 27 read_buffer_len_(0), | |
| 28 headers_bytes_received_(0), | |
| 29 headers_bytes_sent_(0), | |
| 30 closed_stream_received_bytes_(0), | |
| 31 closed_stream_sent_bytes_(0), | |
| 32 has_sent_headers_(false), | |
| 33 has_received_headers_(false), | |
| 34 weak_factory_(this) { | |
| 35 DCHECK(session_); | |
| 36 session_->AddObserver(this); | |
| 37 } | |
| 38 | |
| 39 BidirectionalStreamQuicImpl::~BidirectionalStreamQuicImpl() { | |
| 40 Cancel(); | |
| 41 if (session_) | |
| 42 session_->RemoveObserver(this); | |
| 43 } | |
| 44 | |
| 45 void BidirectionalStreamQuicImpl::Start( | |
| 46 const BidirectionalStreamRequestInfo* request_info, | |
| 47 const BoundNetLog& net_log, | |
| 48 BidirectionalStreamJob::Delegate* delegate, | |
| 49 scoped_ptr<base::Timer> /* timer */) { | |
| 50 DCHECK(!stream_); | |
| 51 | |
| 52 if (!session_) { | |
| 53 NotifyError(was_handshake_confirmed_ ? ERR_QUIC_PROTOCOL_ERROR | |
| 54 : ERR_QUIC_HANDSHAKE_FAILED); | |
| 55 return; | |
| 56 } | |
| 57 | |
| 58 delegate_ = delegate; | |
| 59 request_info_ = request_info; | |
| 60 | |
| 61 int rv = stream_request_.StartRequest( | |
| 62 session_, &stream_, | |
| 63 base::Bind(&BidirectionalStreamQuicImpl::OnStreamReady, | |
| 64 weak_factory_.GetWeakPtr())); | |
| 65 if (rv == OK) { | |
| 66 OnStreamReady(rv); | |
| 67 } else if (!was_handshake_confirmed_) { | |
| 68 NotifyError(ERR_QUIC_HANDSHAKE_FAILED); | |
| 69 } | |
| 70 } | |
| 71 | |
| 72 int BidirectionalStreamQuicImpl::ReadData(IOBuffer* buffer, int buffer_len) { | |
| 73 DCHECK(buffer); | |
| 74 DCHECK(buffer_len); | |
| 75 | |
| 76 if (!stream_) { | |
| 77 // If the stream is already closed, there is no body to read. | |
| 78 return response_status_; | |
| 79 } | |
| 80 int rv = stream_->Read(buffer, buffer_len); | |
| 81 if (rv != ERR_IO_PENDING) { | |
| 82 if (stream_->IsDoneReading()) { | |
| 83 // If the write side is closed, OnFinRead() will call | |
| 84 // BidirectionalStreamQuicImpl::OnClose(). | |
| 85 stream_->OnFinRead(); | |
| 86 } | |
| 87 return rv; | |
| 88 } | |
| 89 // Read will complete asynchronously and Delegate::OnReadCompleted will be | |
| 90 // called upon completion. | |
| 91 read_buffer_ = buffer; | |
| 92 read_buffer_len_ = buffer_len; | |
| 93 return ERR_IO_PENDING; | |
| 94 } | |
| 95 | |
| 96 void BidirectionalStreamQuicImpl::SendData(IOBuffer* data, | |
| 97 int length, | |
| 98 bool end_stream) { | |
| 99 DCHECK(stream_); | |
| 100 DCHECK(length > 0 || (length == 0 && end_stream)); | |
| 101 | |
| 102 base::StringPiece string_data(data->data(), length); | |
| 103 int rv = stream_->WriteStreamData( | |
| 104 string_data, end_stream, | |
| 105 base::Bind(&BidirectionalStreamQuicImpl::OnSendDataComplete, | |
| 106 weak_factory_.GetWeakPtr())); | |
| 107 DCHECK(rv == OK || rv == ERR_IO_PENDING); | |
| 108 if (rv == OK) { | |
| 109 base::ThreadTaskRunnerHandle::Get()->PostTask( | |
| 110 FROM_HERE, base::Bind(&BidirectionalStreamQuicImpl::OnSendDataComplete, | |
| 111 weak_factory_.GetWeakPtr(), OK)); | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 void BidirectionalStreamQuicImpl::Cancel() { | |
| 116 if (stream_) { | |
| 117 stream_->SetDelegate(nullptr); | |
| 118 stream_->Reset(QUIC_STREAM_CANCELLED); | |
| 119 ResetStream(); | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 NextProto BidirectionalStreamQuicImpl::GetProtocol() const { | |
| 124 return negotiated_protocol_; | |
| 125 } | |
| 126 | |
| 127 int64_t BidirectionalStreamQuicImpl::GetTotalReceivedBytes() const { | |
| 128 if (stream_) | |
| 129 return headers_bytes_received_ + stream_->stream_bytes_read(); | |
| 130 return headers_bytes_received_ + closed_stream_received_bytes_; | |
| 131 } | |
| 132 | |
| 133 int64_t BidirectionalStreamQuicImpl::GetTotalSentBytes() const { | |
| 134 if (stream_) | |
| 135 return headers_bytes_sent_ + stream_->stream_bytes_written(); | |
| 136 return headers_bytes_sent_ + closed_stream_sent_bytes_; | |
| 137 } | |
| 138 | |
| 139 void BidirectionalStreamQuicImpl::OnHeadersAvailable( | |
| 140 const SpdyHeaderBlock& headers, | |
| 141 size_t frame_len) { | |
| 142 headers_bytes_received_ += frame_len; | |
| 143 negotiated_protocol_ = kProtoQUIC1SPDY3; | |
| 144 if (!has_received_headers_) { | |
| 145 has_received_headers_ = true; | |
| 146 delegate_->OnHeadersReceived(headers); | |
| 147 } else { | |
| 148 if (stream_->IsDoneReading()) { | |
| 149 // If the write side is closed, OnFinRead() will call | |
| 150 // BidirectionalStreamQuicImpl::OnClose(). | |
| 151 stream_->OnFinRead(); | |
| 152 } | |
| 153 delegate_->OnTrailersReceived(headers); | |
| 154 } | |
| 155 } | |
| 156 | |
| 157 void BidirectionalStreamQuicImpl::OnDataAvailable() { | |
| 158 // Return early if ReadData has not been called. | |
| 159 if (!read_buffer_) | |
| 160 return; | |
| 161 | |
| 162 CHECK(read_buffer_); | |
| 163 CHECK_NE(0, read_buffer_len_); | |
| 164 int rv = ReadData(read_buffer_.get(), read_buffer_len_); | |
| 165 if (rv == ERR_IO_PENDING) { | |
| 166 // Spurrious notification. Wait for the next one. | |
| 167 return; | |
| 168 } | |
| 169 read_buffer_ = nullptr; | |
| 170 read_buffer_len_ = 0; | |
| 171 delegate_->OnDataRead(rv); | |
| 172 } | |
| 173 | |
| 174 void BidirectionalStreamQuicImpl::OnClose(QuicErrorCode error) { | |
| 175 DCHECK(stream_); | |
| 176 if (error == QUIC_NO_ERROR && | |
| 177 stream_->stream_error() == QUIC_STREAM_NO_ERROR) { | |
| 178 ResetStream(); | |
| 179 return; | |
| 180 } | |
| 181 ResetStream(); | |
| 182 NotifyError(was_handshake_confirmed_ ? ERR_QUIC_PROTOCOL_ERROR | |
| 183 : ERR_QUIC_HANDSHAKE_FAILED); | |
| 184 } | |
| 185 | |
| 186 void BidirectionalStreamQuicImpl::OnError(int error) { | |
| 187 NotifyError(error); | |
| 188 } | |
| 189 | |
| 190 bool BidirectionalStreamQuicImpl::HasSendHeadersComplete() { | |
| 191 return has_sent_headers_; | |
| 192 } | |
| 193 | |
| 194 void BidirectionalStreamQuicImpl::OnCryptoHandshakeConfirmed() { | |
| 195 was_handshake_confirmed_ = true; | |
| 196 } | |
| 197 | |
| 198 void BidirectionalStreamQuicImpl::OnSessionClosed(int error) { | |
| 199 DCHECK_NE(OK, error); | |
| 200 session_.reset(); | |
| 201 NotifyError(error); | |
| 202 } | |
| 203 | |
| 204 void BidirectionalStreamQuicImpl::OnStreamReady(int rv) { | |
| 205 DCHECK_NE(ERR_IO_PENDING, rv); | |
| 206 DCHECK(rv == OK || !stream_); | |
| 207 if (rv == OK) { | |
| 208 stream_->SetDelegate(this); | |
| 209 SendRequestHeaders(); | |
| 210 } else { | |
| 211 NotifyError(rv); | |
| 212 } | |
| 213 } | |
| 214 | |
| 215 void BidirectionalStreamQuicImpl::OnSendDataComplete(int rv) { | |
| 216 DCHECK(rv == OK || !stream_); | |
| 217 if (rv == OK) { | |
| 218 delegate_->OnDataSent(); | |
| 219 } else { | |
| 220 NotifyError(rv); | |
| 221 } | |
| 222 } | |
| 223 | |
| 224 void BidirectionalStreamQuicImpl::SendRequestHeaders() { | |
| 225 DCHECK(!has_sent_headers_); | |
| 226 DCHECK(stream_); | |
| 227 | |
| 228 SpdyHeaderBlock headers; | |
| 229 HttpRequestInfo http_request_info; | |
| 230 http_request_info.url = request_info_->url; | |
| 231 http_request_info.method = request_info_->method; | |
| 232 http_request_info.extra_headers = request_info_->extra_headers; | |
| 233 | |
| 234 CreateSpdyHeadersFromHttpRequest(http_request_info, | |
| 235 http_request_info.extra_headers, HTTP2, true, | |
| 236 &headers); | |
| 237 size_t frame_len = stream_->WriteHeaders( | |
| 238 headers, request_info_->end_stream_on_headers, nullptr); | |
| 239 headers_bytes_sent_ += frame_len; | |
| 240 has_sent_headers_ = true; | |
| 241 delegate_->OnHeadersSent(); | |
| 242 } | |
| 243 | |
| 244 void BidirectionalStreamQuicImpl::NotifyError(int error) { | |
| 245 DCHECK_NE(OK, error); | |
| 246 DCHECK_NE(ERR_IO_PENDING, error); | |
| 247 | |
| 248 response_status_ = error; | |
| 249 ResetStream(); | |
| 250 delegate_->OnFailed(error); | |
| 251 } | |
| 252 | |
| 253 void BidirectionalStreamQuicImpl::ResetStream() { | |
| 254 if (!stream_) | |
| 255 return; | |
| 256 closed_stream_received_bytes_ = stream_->stream_bytes_read(); | |
| 257 closed_stream_sent_bytes_ = stream_->stream_bytes_written(); | |
| 258 stream_->SetDelegate(nullptr); | |
| 259 stream_ = nullptr; | |
| 260 } | |
| 261 | |
| 262 } // namespace net | |
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