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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "net/quic/core/quic_client_session_base.h" | 5 #include "net/quic/core/quic_client_session_base.h" |
| 6 | 6 |
| 7 #include "net/quic/core/quic_client_promised_info.h" | 7 #include "net/quic/core/quic_client_promised_info.h" |
| 8 #include "net/quic/core/quic_flags.h" | 8 #include "net/quic/core/quic_flags.h" |
| 9 #include "net/quic/core/spdy_utils.h" | 9 #include "net/quic/core/spdy_utils.h" |
| 10 #include "net/quic/platform/api/quic_logging.h" |
| 10 | 11 |
| 11 using base::StringPiece; | 12 using base::StringPiece; |
| 12 using std::string; | 13 using std::string; |
| 13 | 14 |
| 14 namespace net { | 15 namespace net { |
| 15 | 16 |
| 16 QuicClientSessionBase::QuicClientSessionBase( | 17 QuicClientSessionBase::QuicClientSessionBase( |
| 17 QuicConnection* connection, | 18 QuicConnection* connection, |
| 18 QuicClientPushPromiseIndex* push_promise_index, | 19 QuicClientPushPromiseIndex* push_promise_index, |
| 19 const QuicConfig& config) | 20 const QuicConfig& config) |
| 20 : QuicSpdySession(connection, nullptr, config), | 21 : QuicSpdySession(connection, nullptr, config), |
| 21 push_promise_index_(push_promise_index), | 22 push_promise_index_(push_promise_index), |
| 22 largest_promised_stream_id_(kInvalidStreamId) {} | 23 largest_promised_stream_id_(kInvalidStreamId) {} |
| 23 | 24 |
| 24 QuicClientSessionBase::~QuicClientSessionBase() { | 25 QuicClientSessionBase::~QuicClientSessionBase() { |
| 25 // all promised streams for this session | 26 // all promised streams for this session |
| 26 for (auto& it : promised_by_id_) { | 27 for (auto& it : promised_by_id_) { |
| 27 DVLOG(1) << "erase stream " << it.first << " url " << it.second->url(); | 28 QUIC_DVLOG(1) << "erase stream " << it.first << " url " << it.second->url(); |
| 28 push_promise_index_->promised_by_url()->erase(it.second->url()); | 29 push_promise_index_->promised_by_url()->erase(it.second->url()); |
| 29 } | 30 } |
| 30 delete connection(); | 31 delete connection(); |
| 31 } | 32 } |
| 32 | 33 |
| 33 void QuicClientSessionBase::OnConfigNegotiated() { | 34 void QuicClientSessionBase::OnConfigNegotiated() { |
| 34 QuicSpdySession::OnConfigNegotiated(); | 35 QuicSpdySession::OnConfigNegotiated(); |
| 35 } | 36 } |
| 36 | 37 |
| 37 void QuicClientSessionBase::OnCryptoHandshakeEvent(CryptoHandshakeEvent event) { | 38 void QuicClientSessionBase::OnCryptoHandshakeEvent(CryptoHandshakeEvent event) { |
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| 79 | 80 |
| 80 bool QuicClientSessionBase::HandlePromised(QuicStreamId /* associated_id */, | 81 bool QuicClientSessionBase::HandlePromised(QuicStreamId /* associated_id */, |
| 81 QuicStreamId id, | 82 QuicStreamId id, |
| 82 const SpdyHeaderBlock& headers) { | 83 const SpdyHeaderBlock& headers) { |
| 83 // Due to pathalogical packet re-ordering, it is possible that | 84 // Due to pathalogical packet re-ordering, it is possible that |
| 84 // frames for the promised stream have already arrived, and the | 85 // frames for the promised stream have already arrived, and the |
| 85 // promised stream could be active or closed. | 86 // promised stream could be active or closed. |
| 86 if (IsClosedStream(id)) { | 87 if (IsClosedStream(id)) { |
| 87 // There was a RST on the data stream already, perhaps | 88 // There was a RST on the data stream already, perhaps |
| 88 // QUIC_REFUSED_STREAM? | 89 // QUIC_REFUSED_STREAM? |
| 89 DVLOG(1) << "Promise ignored for stream " << id | 90 QUIC_DVLOG(1) << "Promise ignored for stream " << id |
| 90 << " that is already closed"; | 91 << " that is already closed"; |
| 91 return false; | 92 return false; |
| 92 } | 93 } |
| 93 | 94 |
| 94 if (push_promise_index_->promised_by_url()->size() >= get_max_promises()) { | 95 if (push_promise_index_->promised_by_url()->size() >= get_max_promises()) { |
| 95 DVLOG(1) << "Too many promises, rejecting promise for stream " << id; | 96 QUIC_DVLOG(1) << "Too many promises, rejecting promise for stream " << id; |
| 96 ResetPromised(id, QUIC_REFUSED_STREAM); | 97 ResetPromised(id, QUIC_REFUSED_STREAM); |
| 97 return false; | 98 return false; |
| 98 } | 99 } |
| 99 | 100 |
| 100 const string url = SpdyUtils::GetUrlFromHeaderBlock(headers); | 101 const string url = SpdyUtils::GetUrlFromHeaderBlock(headers); |
| 101 QuicClientPromisedInfo* old_promised = GetPromisedByUrl(url); | 102 QuicClientPromisedInfo* old_promised = GetPromisedByUrl(url); |
| 102 if (old_promised) { | 103 if (old_promised) { |
| 103 DVLOG(1) << "Promise for stream " << id << " is duplicate URL " << url | 104 QUIC_DVLOG(1) << "Promise for stream " << id << " is duplicate URL " << url |
| 104 << " of previous promise for stream " << old_promised->id(); | 105 << " of previous promise for stream " << old_promised->id(); |
| 105 ResetPromised(id, QUIC_DUPLICATE_PROMISE_URL); | 106 ResetPromised(id, QUIC_DUPLICATE_PROMISE_URL); |
| 106 return false; | 107 return false; |
| 107 } | 108 } |
| 108 | 109 |
| 109 if (GetPromisedById(id)) { | 110 if (GetPromisedById(id)) { |
| 110 // OnPromiseHeadersComplete() would have closed the connection if | 111 // OnPromiseHeadersComplete() would have closed the connection if |
| 111 // promised id is a duplicate. | 112 // promised id is a duplicate. |
| 112 QUIC_BUG << "Duplicate promise for id " << id; | 113 QUIC_BUG << "Duplicate promise for id " << id; |
| 113 return false; | 114 return false; |
| 114 } | 115 } |
| 115 | 116 |
| 116 QuicClientPromisedInfo* promised = new QuicClientPromisedInfo(this, id, url); | 117 QuicClientPromisedInfo* promised = new QuicClientPromisedInfo(this, id, url); |
| 117 std::unique_ptr<QuicClientPromisedInfo> promised_owner(promised); | 118 std::unique_ptr<QuicClientPromisedInfo> promised_owner(promised); |
| 118 promised->Init(); | 119 promised->Init(); |
| 119 DVLOG(1) << "stream " << id << " emplace url " << url; | 120 QUIC_DVLOG(1) << "stream " << id << " emplace url " << url; |
| 120 (*push_promise_index_->promised_by_url())[url] = promised; | 121 (*push_promise_index_->promised_by_url())[url] = promised; |
| 121 promised_by_id_[id] = std::move(promised_owner); | 122 promised_by_id_[id] = std::move(promised_owner); |
| 122 promised->OnPromiseHeaders(headers); | 123 promised->OnPromiseHeaders(headers); |
| 123 return true; | 124 return true; |
| 124 } | 125 } |
| 125 | 126 |
| 126 QuicClientPromisedInfo* QuicClientSessionBase::GetPromisedByUrl( | 127 QuicClientPromisedInfo* QuicClientSessionBase::GetPromisedByUrl( |
| 127 const string& url) { | 128 const string& url) { |
| 128 QuicPromisedByUrlMap::iterator it = | 129 QuicPromisedByUrlMap::iterator it = |
| 129 push_promise_index_->promised_by_url()->find(url); | 130 push_promise_index_->promised_by_url()->find(url); |
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| 173 bool locally_reset) { | 174 bool locally_reset) { |
| 174 QuicSpdySession::CloseStreamInner(stream_id, locally_reset); | 175 QuicSpdySession::CloseStreamInner(stream_id, locally_reset); |
| 175 headers_stream()->MaybeReleaseSequencerBuffer(); | 176 headers_stream()->MaybeReleaseSequencerBuffer(); |
| 176 } | 177 } |
| 177 | 178 |
| 178 bool QuicClientSessionBase::ShouldReleaseHeadersStreamSequencerBuffer() { | 179 bool QuicClientSessionBase::ShouldReleaseHeadersStreamSequencerBuffer() { |
| 179 return num_active_requests() == 0 && promised_by_id_.empty(); | 180 return num_active_requests() == 0 && promised_by_id_.empty(); |
| 180 } | 181 } |
| 181 | 182 |
| 182 } // namespace net | 183 } // namespace net |
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