src/net/quic/quic_session_test.cc

   1 // Copyright (c) 2012 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/quic_session.h"
   6
   7 #include <set>
   8 #include <vector>
   9
  10 #include "base/containers/hash_tables.h"
  11 #include "net/quic/crypto/crypto_handshake.h"
  12 #include "net/quic/quic_connection.h"
  13 #include "net/quic/quic_protocol.h"
  14 #include "net/quic/test_tools/quic_connection_peer.h"
  15 #include "net/quic/test_tools/quic_test_utils.h"
  16 #include "net/quic/test_tools/reliable_quic_stream_peer.h"
  17 #include "net/spdy/spdy_framer.h"
  18 #include "testing/gmock/include/gmock/gmock.h"
  19 #include "testing/gtest/include/gtest/gtest.h"
  20
  21 using base::hash_map;
  22 using std::set;
  23 using std::vector;
  24 using testing::_;
  25 using testing::InSequence;
  26 using testing::InvokeWithoutArgs;
  27 using testing::StrictMock;
  28
  29 namespace net {
  30 namespace test {
  31 namespace {
  32
  33 const QuicPriority kSomeMiddlePriority = 2;
  34
  35 class TestCryptoStream : public QuicCryptoStream {
  36  public:
  37   explicit TestCryptoStream(QuicSession* session)
  38       : QuicCryptoStream(session) {
  39   }
  40
  41   virtual void OnHandshakeMessage(
  42       const CryptoHandshakeMessage& message) OVERRIDE {
  43     encryption_established_ = true;
  44     handshake_confirmed_ = true;
  45     CryptoHandshakeMessage msg;
  46     string error_details;
  47     session()->config()->ToHandshakeMessage(&msg);
  48     const QuicErrorCode error = session()->config()->ProcessClientHello(
  49         msg, &error_details);
  50     EXPECT_EQ(QUIC_NO_ERROR, error);
  51     session()->OnConfigNegotiated();
  52     session()->OnCryptoHandshakeEvent(QuicSession::HANDSHAKE_CONFIRMED);
  53   }
  54
  55   MOCK_METHOD0(OnCanWrite, void());
  56 };
  57
  58 class TestStream : public ReliableQuicStream {
  59  public:
  60   TestStream(QuicStreamId id, QuicSession* session)
  61       : ReliableQuicStream(id, session) {
  62   }
  63
  64   using ReliableQuicStream::CloseWriteSide;
  65
  66   virtual uint32 ProcessData(const char* data, uint32 data_len) {
  67     return data_len;
  68   }
  69
  70   MOCK_METHOD0(OnCanWrite, void());
  71 };
  72
  73 // Poor man's functor for use as callback in a mock.
  74 class StreamBlocker {
  75  public:
  76   StreamBlocker(QuicSession* session, QuicStreamId stream_id)
  77       : session_(session),
  78         stream_id_(stream_id) {
  79   }
  80
  81   void MarkWriteBlocked() {
  82     session_->MarkWriteBlocked(stream_id_, kSomeMiddlePriority);
  83   }
  84
  85  private:
  86   QuicSession* const session_;
  87   const QuicStreamId stream_id_;
  88 };
  89
  90 class TestSession : public QuicSession {
  91  public:
  92   TestSession(QuicConnection* connection, bool is_server)
  93       : QuicSession(connection, DefaultQuicConfig(), is_server),
  94         crypto_stream_(this) {
  95   }
  96
  97   virtual TestCryptoStream* GetCryptoStream() OVERRIDE {
  98     return &crypto_stream_;
  99   }
 100
 101   virtual TestStream* CreateOutgoingReliableStream() OVERRIDE {
 102     TestStream* stream = new TestStream(GetNextStreamId(), this);
 103     ActivateStream(stream);
 104     return stream;
 105   }
 106
 107   virtual TestStream* CreateIncomingReliableStream(QuicStreamId id) OVERRIDE {
 108     return new TestStream(id, this);
 109   }
 110
 111   bool IsClosedStream(QuicStreamId id) {
 112     return QuicSession::IsClosedStream(id);
 113   }
 114
 115   ReliableQuicStream* GetIncomingReliableStream(QuicStreamId stream_id) {
 116     return QuicSession::GetIncomingReliableStream(stream_id);
 117   }
 118
 119   TestCryptoStream crypto_stream_;
 120 };
 121
 122 class QuicSessionTest : public ::testing::Test {
 123  protected:
 124   QuicSessionTest()
 125       : guid_(1),
 126         connection_(new MockConnection(guid_, IPEndPoint(), false)),
 127         session_(connection_, true) {
 128     headers_[":host"] = "www.google.com";
 129     headers_[":path"] = "/index.hml";
 130     headers_[":scheme"] = "http";
 131     headers_["cookie"] =
 132         "__utma=208381060.1228362404.1372200928.1372200928.1372200928.1; "
 133         "__utmc=160408618; "
 134         "GX=DQAAAOEAAACWJYdewdE9rIrW6qw3PtVi2-d729qaa-74KqOsM1NVQblK4VhX"
 135         "hoALMsy6HOdDad2Sz0flUByv7etmo3mLMidGrBoljqO9hSVA40SLqpG_iuKKSHX"
 136         "RW3Np4bq0F0SDGDNsW0DSmTS9ufMRrlpARJDS7qAI6M3bghqJp4eABKZiRqebHT"
 137         "pMU-RXvTI5D5oCF1vYxYofH_l1Kviuiy3oQ1kS1enqWgbhJ2t61_SNdv-1XJIS0"
 138         "O3YeHLmVCs62O6zp89QwakfAWK9d3IDQvVSJzCQsvxvNIvaZFa567MawWlXg0Rh"
 139         "1zFMi5vzcns38-8_Sns; "
 140         "GA=v*2%2Fmem*57968640*47239936%2Fmem*57968640*47114716%2Fno-nm-"
 141         "yj*15%2Fno-cc-yj*5%2Fpc-ch*133685%2Fpc-s-cr*133947%2Fpc-s-t*1339"
 142         "47%2Fno-nm-yj*4%2Fno-cc-yj*1%2Fceft-as*1%2Fceft-nqas*0%2Fad-ra-c"
 143         "v_p%2Fad-nr-cv_p-f*1%2Fad-v-cv_p*859%2Fad-ns-cv_p-f*1%2Ffn-v-ad%"
 144         "2Fpc-t*250%2Fpc-cm*461%2Fpc-s-cr*722%2Fpc-s-t*722%2Fau_p*4"
 145         "SICAID=AJKiYcHdKgxum7KMXG0ei2t1-W4OD1uW-ecNsCqC0wDuAXiDGIcT_HA2o1"
 146         "3Rs1UKCuBAF9g8rWNOFbxt8PSNSHFuIhOo2t6bJAVpCsMU5Laa6lewuTMYI8MzdQP"
 147         "ARHKyW-koxuhMZHUnGBJAM1gJODe0cATO_KGoX4pbbFxxJ5IicRxOrWK_5rU3cdy6"
 148         "edlR9FsEdH6iujMcHkbE5l18ehJDwTWmBKBzVD87naobhMMrF6VvnDGxQVGp9Ir_b"
 149         "Rgj3RWUoPumQVCxtSOBdX0GlJOEcDTNCzQIm9BSfetog_eP_TfYubKudt5eMsXmN6"
 150         "QnyXHeGeK2UINUzJ-D30AFcpqYgH9_1BvYSpi7fc7_ydBU8TaD8ZRxvtnzXqj0RfG"
 151         "tuHghmv3aD-uzSYJ75XDdzKdizZ86IG6Fbn1XFhYZM-fbHhm3mVEXnyRW4ZuNOLFk"
 152         "Fas6LMcVC6Q8QLlHYbXBpdNFuGbuZGUnav5C-2I_-46lL0NGg3GewxGKGHvHEfoyn"
 153         "EFFlEYHsBQ98rXImL8ySDycdLEFvBPdtctPmWCfTxwmoSMLHU2SCVDhbqMWU5b0yr"
 154         "JBCScs_ejbKaqBDoB7ZGxTvqlrB__2ZmnHHjCr8RgMRtKNtIeuZAo ";
 155   }
 156
 157   void CheckClosedStreams() {
 158     for (int i = kCryptoStreamId; i < 100; i++) {
 159       if (closed_streams_.count(i) == 0) {
 160         EXPECT_FALSE(session_.IsClosedStream(i)) << " stream id: " << i;
 161       } else {
 162         EXPECT_TRUE(session_.IsClosedStream(i)) << " stream id: " << i;
 163       }
 164     }
 165   }
 166
 167   void CloseStream(QuicStreamId id) {
 168     session_.CloseStream(id);
 169     closed_streams_.insert(id);
 170   }
 171
 172   QuicGuid guid_;
 173   MockConnection* connection_;
 174   TestSession session_;
 175   set<QuicStreamId> closed_streams_;
 176   SpdyHeaderBlock headers_;
 177 };
 178
 179 TEST_F(QuicSessionTest, PeerAddress) {
 180   EXPECT_EQ(IPEndPoint(), session_.peer_address());
 181 }
 182
 183 TEST_F(QuicSessionTest, IsCryptoHandshakeConfirmed) {
 184   EXPECT_FALSE(session_.IsCryptoHandshakeConfirmed());
 185   CryptoHandshakeMessage message;
 186   session_.crypto_stream_.OnHandshakeMessage(message);
 187   EXPECT_TRUE(session_.IsCryptoHandshakeConfirmed());
 188 }
 189
 190 TEST_F(QuicSessionTest, IsClosedStreamDefault) {
 191   // Ensure that no streams are initially closed.
 192   for (int i = kCryptoStreamId; i < 100; i++) {
 193     EXPECT_FALSE(session_.IsClosedStream(i));
 194   }
 195 }
 196
 197 TEST_F(QuicSessionTest, ImplicitlyCreatedStreams) {
 198   ASSERT_TRUE(session_.GetIncomingReliableStream(7) != NULL);
 199   // Both 3 and 5 should be implicitly created.
 200   EXPECT_FALSE(session_.IsClosedStream(3));
 201   EXPECT_FALSE(session_.IsClosedStream(5));
 202   ASSERT_TRUE(session_.GetIncomingReliableStream(5) != NULL);
 203   ASSERT_TRUE(session_.GetIncomingReliableStream(3) != NULL);
 204 }
 205
 206 TEST_F(QuicSessionTest, IsClosedStreamLocallyCreated) {
 207   TestStream* stream2 = session_.CreateOutgoingReliableStream();
 208   EXPECT_EQ(2u, stream2->id());
 209   ReliableQuicStreamPeer::SetHeadersDecompressed(stream2, true);
 210   TestStream* stream4 = session_.CreateOutgoingReliableStream();
 211   EXPECT_EQ(4u, stream4->id());
 212   ReliableQuicStreamPeer::SetHeadersDecompressed(stream4, true);
 213
 214   CheckClosedStreams();
 215   CloseStream(4);
 216   CheckClosedStreams();
 217   CloseStream(2);
 218   CheckClosedStreams();
 219 }
 220
 221 TEST_F(QuicSessionTest, IsClosedStreamPeerCreated) {
 222   ReliableQuicStream* stream3 = session_.GetIncomingReliableStream(3);
 223   ReliableQuicStreamPeer::SetHeadersDecompressed(stream3, true);
 224   ReliableQuicStream* stream5 = session_.GetIncomingReliableStream(5);
 225   ReliableQuicStreamPeer::SetHeadersDecompressed(stream5, true);
 226
 227   CheckClosedStreams();
 228   CloseStream(3);
 229   CheckClosedStreams();
 230   CloseStream(5);
 231   // Create stream id 9, and implicitly 7
 232   ReliableQuicStream* stream9 = session_.GetIncomingReliableStream(9);
 233   ReliableQuicStreamPeer::SetHeadersDecompressed(stream9, true);
 234   CheckClosedStreams();
 235   // Close 9, but make sure 7 is still not closed
 236   CloseStream(9);
 237   CheckClosedStreams();
 238 }
 239
 240 TEST_F(QuicSessionTest, StreamIdTooLarge) {
 241   session_.GetIncomingReliableStream(3);
 242   EXPECT_CALL(*connection_, SendConnectionClose(QUIC_INVALID_STREAM_ID));
 243   session_.GetIncomingReliableStream(105);
 244 }
 245
 246 TEST_F(QuicSessionTest, DecompressionError) {
 247   ReliableQuicStream* stream = session_.GetIncomingReliableStream(3);
 248   EXPECT_CALL(*connection_, SendConnectionClose(QUIC_DECOMPRESSION_FAILURE));
 249   const char data[] =
 250       "\1\0\0\0"   // headers id
 251       "\0\0\0\4"   // length
 252       "abcd";      // invalid compressed data
 253   stream->ProcessRawData(data, arraysize(data));
 254 }
 255
 256 TEST_F(QuicSessionTest, OnCanWrite) {
 257   TestStream* stream2 = session_.CreateOutgoingReliableStream();
 258   TestStream* stream4 = session_.CreateOutgoingReliableStream();
 259   TestStream* stream6 = session_.CreateOutgoingReliableStream();
 260
 261   session_.MarkWriteBlocked(stream2->id(), kSomeMiddlePriority);
 262   session_.MarkWriteBlocked(stream6->id(), kSomeMiddlePriority);
 263   session_.MarkWriteBlocked(stream4->id(), kSomeMiddlePriority);
 264
 265   InSequence s;
 266   StreamBlocker stream2_blocker(&session_, stream2->id());
 267   EXPECT_CALL(*stream2, OnCanWrite()).WillOnce(
 268       // Reregister, to test the loop limit.
 269       InvokeWithoutArgs(&stream2_blocker, &StreamBlocker::MarkWriteBlocked));
 270   EXPECT_CALL(*stream6, OnCanWrite());
 271   EXPECT_CALL(*stream4, OnCanWrite());
 272
 273   EXPECT_FALSE(session_.OnCanWrite());
 274 }
 275
 276 TEST_F(QuicSessionTest, BufferedHandshake) {
 277   EXPECT_FALSE(session_.HasPendingHandshake());  // Default value.
 278
 279   // Test that blocking other streams does not change our status.
 280   TestStream* stream2 = session_.CreateOutgoingReliableStream();
 281   StreamBlocker stream2_blocker(&session_, stream2->id());
 282   stream2_blocker.MarkWriteBlocked();
 283   EXPECT_FALSE(session_.HasPendingHandshake());
 284
 285   TestStream* stream3 = session_.CreateOutgoingReliableStream();
 286   StreamBlocker stream3_blocker(&session_, stream3->id());
 287   stream3_blocker.MarkWriteBlocked();
 288   EXPECT_FALSE(session_.HasPendingHandshake());
 289
 290   // Blocking (due to buffering of) the Crypto stream is detected.
 291   session_.MarkWriteBlocked(kCryptoStreamId, kSomeMiddlePriority);
 292   EXPECT_TRUE(session_.HasPendingHandshake());
 293
 294   TestStream* stream4 = session_.CreateOutgoingReliableStream();
 295   StreamBlocker stream4_blocker(&session_, stream4->id());
 296   stream4_blocker.MarkWriteBlocked();
 297   EXPECT_TRUE(session_.HasPendingHandshake());
 298
 299   InSequence s;
 300   // Force most streams to re-register, which is common scenario when we block
 301   // the Crypto stream, and only the crypto stream can "really" write.
 302
 303   // Due to prioritization, we *should* be asked to write the crypto stream
 304   // first.
 305   // Don't re-register the crypto stream (which signals complete writing).
 306   TestCryptoStream* crypto_stream = session_.GetCryptoStream();
 307   EXPECT_CALL(*crypto_stream, OnCanWrite());
 308
 309   // Re-register all other streams, to show they weren't able to proceed.
 310   EXPECT_CALL(*stream2, OnCanWrite()).WillOnce(
 311       InvokeWithoutArgs(&stream2_blocker, &StreamBlocker::MarkWriteBlocked));
 312
 313   EXPECT_CALL(*stream3, OnCanWrite()).WillOnce(
 314       InvokeWithoutArgs(&stream3_blocker, &StreamBlocker::MarkWriteBlocked));
 315
 316   EXPECT_CALL(*stream4, OnCanWrite()).WillOnce(
 317       InvokeWithoutArgs(&stream4_blocker, &StreamBlocker::MarkWriteBlocked));
 318
 319   EXPECT_FALSE(session_.OnCanWrite());
 320   EXPECT_FALSE(session_.HasPendingHandshake());  // Crypto stream wrote.
 321 }
 322
 323 TEST_F(QuicSessionTest, OnCanWriteWithClosedStream) {
 324   TestStream* stream2 = session_.CreateOutgoingReliableStream();
 325   TestStream* stream4 = session_.CreateOutgoingReliableStream();
 326   TestStream* stream6 = session_.CreateOutgoingReliableStream();
 327
 328   session_.MarkWriteBlocked(stream2->id(), kSomeMiddlePriority);
 329   session_.MarkWriteBlocked(stream6->id(), kSomeMiddlePriority);
 330   session_.MarkWriteBlocked(stream4->id(), kSomeMiddlePriority);
 331   CloseStream(stream6->id());
 332
 333   InSequence s;
 334   EXPECT_CALL(*stream2, OnCanWrite());
 335   EXPECT_CALL(*stream4, OnCanWrite());
 336   EXPECT_TRUE(session_.OnCanWrite());
 337 }
 338
 339 // Regression test for http://crbug.com/248737
 340 TEST_F(QuicSessionTest, OutOfOrderHeaders) {
 341   QuicSpdyCompressor compressor;
 342   vector<QuicStreamFrame> frames;
 343   QuicPacketHeader header;
 344   header.public_header.guid = session_.guid();
 345
 346   TestStream* stream2 = session_.CreateOutgoingReliableStream();
 347   TestStream* stream4 = session_.CreateOutgoingReliableStream();
 348   stream2->CloseWriteSide();
 349   stream4->CloseWriteSide();
 350
 351   // Create frame with headers for stream2.
 352   string compressed_headers1 = compressor.CompressHeaders(headers_);
 353   QuicStreamFrame frame1(stream2->id(), false, 0, compressed_headers1);
 354
 355   // Create frame with headers for stream4.
 356   string compressed_headers2 = compressor.CompressHeaders(headers_);
 357   QuicStreamFrame frame2(stream4->id(), true, 0, compressed_headers2);
 358
 359   // Process the second frame first.  This will cause the headers to
 360   // be queued up and processed after the first frame is processed.
 361   frames.push_back(frame2);
 362   session_.OnStreamFrames(frames);
 363
 364   // Process the first frame, and un-cork the buffered headers.
 365   frames[0] = frame1;
 366   session_.OnStreamFrames(frames);
 367
 368   // Ensure that the streams actually close and we don't DCHECK.
 369   connection_->CloseConnection(QUIC_CONNECTION_TIMED_OUT, true);
 370 }
 371
 372 TEST_F(QuicSessionTest, SendGoAway) {
 373   // After sending a GoAway, ensure new incoming streams cannot be created and
 374   // result in a RST being sent.
 375   EXPECT_CALL(*connection_,
 376               SendGoAway(QUIC_PEER_GOING_AWAY, 0u, "Going Away."));
 377   session_.SendGoAway(QUIC_PEER_GOING_AWAY, "Going Away.");
 378   EXPECT_TRUE(session_.goaway_sent());
 379
 380   EXPECT_CALL(*connection_, SendRstStream(3u, QUIC_STREAM_PEER_GOING_AWAY));
 381   EXPECT_FALSE(session_.GetIncomingReliableStream(3u));
 382 }
 383
 384 TEST_F(QuicSessionTest, IncreasedTimeoutAfterCryptoHandshake) {
 385   EXPECT_EQ(kDefaultInitialTimeoutSecs,
 386             QuicConnectionPeer::GetNetworkTimeout(connection_).ToSeconds());
 387   CryptoHandshakeMessage msg;
 388   session_.crypto_stream_.OnHandshakeMessage(msg);
 389   EXPECT_EQ(kDefaultTimeoutSecs,
 390             QuicConnectionPeer::GetNetworkTimeout(connection_).ToSeconds());
 391 }
 392
 393 TEST_F(QuicSessionTest, ZombieStream) {
 394   StrictMock<MockConnection>* connection =
 395       new StrictMock<MockConnection>(guid_, IPEndPoint(), false);
 396   TestSession session(connection, /*is_server=*/ false);
 397
 398   TestStream* stream3 = session.CreateOutgoingReliableStream();
 399   EXPECT_EQ(3u, stream3->id());
 400   TestStream* stream5 = session.CreateOutgoingReliableStream();
 401   EXPECT_EQ(5u, stream5->id());
 402   EXPECT_EQ(2u, session.GetNumOpenStreams());
 403
 404   // Reset the stream, but since the headers have not been decompressed
 405   // it will become a zombie and will continue to process data
 406   // until the headers are decompressed.
 407   EXPECT_CALL(*connection, SendRstStream(3, QUIC_STREAM_CANCELLED));
 408   session.SendRstStream(3, QUIC_STREAM_CANCELLED);
 409
 410   EXPECT_EQ(1u, session.GetNumOpenStreams());
 411
 412   vector<QuicStreamFrame> frames;
 413   QuicPacketHeader header;
 414   header.public_header.guid = session_.guid();
 415
 416   // Create frame with headers for stream2.
 417   QuicSpdyCompressor compressor;
 418   string compressed_headers1 = compressor.CompressHeaders(headers_);
 419   QuicStreamFrame frame1(stream3->id(), false, 0, compressed_headers1);
 420
 421   // Process the second frame first.  This will cause the headers to
 422   // be queued up and processed after the first frame is processed.
 423   frames.push_back(frame1);
 424   EXPECT_FALSE(stream3->headers_decompressed());
 425
 426   session.OnStreamFrames(frames);
 427   EXPECT_EQ(1u, session.GetNumOpenStreams());
 428
 429   EXPECT_TRUE(connection->connected());
 430 }
 431
 432 TEST_F(QuicSessionTest, ZombieStreamConnectionClose) {
 433   StrictMock<MockConnection>* connection =
 434       new StrictMock<MockConnection>(guid_, IPEndPoint(), false);
 435   TestSession session(connection, /*is_server=*/ false);
 436
 437   TestStream* stream3 = session.CreateOutgoingReliableStream();
 438   EXPECT_EQ(3u, stream3->id());
 439   TestStream* stream5 = session.CreateOutgoingReliableStream();
 440   EXPECT_EQ(5u, stream5->id());
 441   EXPECT_EQ(2u, session.GetNumOpenStreams());
 442
 443   stream3->CloseWriteSide();
 444   // Reset the stream, but since the headers have not been decompressed
 445   // it will become a zombie and will continue to process data
 446   // until the headers are decompressed.
 447   EXPECT_CALL(*connection, SendRstStream(3, QUIC_STREAM_CANCELLED));
 448   session.SendRstStream(3, QUIC_STREAM_CANCELLED);
 449
 450   EXPECT_EQ(1u, session.GetNumOpenStreams());
 451
 452   connection->CloseConnection(QUIC_CONNECTION_TIMED_OUT, false);
 453
 454   EXPECT_EQ(0u, session.GetNumOpenStreams());
 455 }
 456
 457 }  // namespace
 458 }  // namespace test
 459 }  // namespace net