net/http/http_network_layer_unittest.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/http/http_network_layer.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/strings/stringprintf.h"
   9 #include "net/cert/mock_cert_verifier.h"
  10 #include "net/dns/mock_host_resolver.h"
  11 #include "net/http/http_network_session.h"
  12 #include "net/http/http_server_properties_impl.h"
  13 #include "net/http/http_transaction_test_util.h"
  14 #include "net/http/transport_security_state.h"
  15 #include "net/log/net_log.h"
  16 #include "net/proxy/proxy_service.h"
  17 #include "net/socket/socket_test_util.h"
  18 #include "net/spdy/spdy_session_pool.h"
  19 #include "net/ssl/ssl_config_service_defaults.h"
  20 #include "testing/gtest/include/gtest/gtest.h"
  21 #include "testing/platform_test.h"
  22
  23 namespace net {
  24
  25 namespace {
  26
  27 class HttpNetworkLayerTest : public PlatformTest {
  28  protected:
  29   HttpNetworkLayerTest() : ssl_config_service_(new SSLConfigServiceDefaults) {}
  30
  31   void SetUp() override {
  32     ConfigureTestDependencies(ProxyService::CreateDirect());
  33   }
  34
  35   void ConfigureTestDependencies(ProxyService* proxy_service) {
  36     cert_verifier_.reset(new MockCertVerifier);
  37     transport_security_state_.reset(new TransportSecurityState);
  38     proxy_service_.reset(proxy_service);
  39     HttpNetworkSession::Params session_params;
  40     session_params.client_socket_factory = &mock_socket_factory_;
  41     session_params.host_resolver = &host_resolver_;
  42     session_params.cert_verifier = cert_verifier_.get();
  43     session_params.transport_security_state = transport_security_state_.get();
  44     session_params.proxy_service = proxy_service_.get();
  45     session_params.ssl_config_service = ssl_config_service_.get();
  46     session_params.http_server_properties =
  47         http_server_properties_.GetWeakPtr();
  48     network_session_ = new HttpNetworkSession(session_params);
  49     factory_.reset(new HttpNetworkLayer(network_session_.get()));
  50   }
  51
  52   void ExecuteRequestExpectingContentAndHeader(const std::string& method,
  53                                                const std::string& content,
  54                                                const std::string& header,
  55                                                const std::string& value) {
  56     TestCompletionCallback callback;
  57
  58     HttpRequestInfo request_info;
  59     request_info.url = GURL("http://www.google.com/");
  60     request_info.method = method;
  61     request_info.load_flags = LOAD_NORMAL;
  62
  63     scoped_ptr<HttpTransaction> trans;
  64     int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
  65     EXPECT_EQ(OK, rv);
  66
  67     rv = trans->Start(&request_info, callback.callback(), BoundNetLog());
  68     if (rv == ERR_IO_PENDING)
  69       rv = callback.WaitForResult();
  70     ASSERT_EQ(OK, rv);
  71
  72     std::string contents;
  73     rv = ReadTransaction(trans.get(), &contents);
  74     EXPECT_EQ(OK, rv);
  75     EXPECT_EQ(content, contents);
  76
  77     if (!header.empty()) {
  78       // We also have a server header here that isn't set by the proxy.
  79       EXPECT_TRUE(trans->GetResponseInfo()->headers->HasHeaderValue(
  80           header, value));
  81     }
  82   }
  83
  84   // Check that |proxy_count| proxies are in the retry list.
  85   // These will be, in order, |bad_proxy| and |bad_proxy2|".
  86   void TestBadProxies(unsigned int proxy_count, const std::string& bad_proxy,
  87                       const std::string& bad_proxy2) {
  88     const ProxyRetryInfoMap& retry_info = proxy_service_->proxy_retry_info();
  89     ASSERT_EQ(proxy_count, retry_info.size());
  90     if (proxy_count > 0)
  91       ASSERT_TRUE(retry_info.find(bad_proxy) != retry_info.end());
  92     if (proxy_count > 1)
  93       ASSERT_TRUE(retry_info.find(bad_proxy2) != retry_info.end());
  94   }
  95
  96   // Simulates a request through a proxy which returns a bypass, which is then
  97   // retried through a second proxy that doesn't bypass.
  98   // Checks that the expected requests were issued, the expected content was
  99   // received, and the first proxy |bad_proxy| was marked as bad.
 100   void TestProxyFallback(const std::string& bad_proxy) {
 101     MockRead data_reads[] = {
 102       MockRead("HTTP/1.1 200 OK\r\n"
 103                "Chrome-Proxy: bypass=0\r\n\r\n"),
 104       MockRead("Bypass message"),
 105       MockRead(SYNCHRONOUS, OK),
 106     };
 107     TestProxyFallbackWithMockReads(bad_proxy, "", data_reads,
 108                                    arraysize(data_reads), 1u);
 109   }
 110
 111   void TestProxyFallbackWithMockReads(const std::string& bad_proxy,
 112                                       const std::string& bad_proxy2,
 113                                       MockRead data_reads[],
 114                                       int data_reads_size,
 115                                       unsigned int expected_retry_info_size) {
 116     TestProxyFallbackByMethodWithMockReads(bad_proxy, bad_proxy2, data_reads,
 117                                            data_reads_size, "GET", "content",
 118                                            true, expected_retry_info_size);
 119   }
 120
 121   void TestProxyFallbackByMethodWithMockReads(
 122       const std::string& bad_proxy,
 123       const std::string& bad_proxy2,
 124       MockRead data_reads[],
 125       int data_reads_size,
 126       std::string method,
 127       std::string content,
 128       bool retry_expected,
 129       unsigned int expected_retry_info_size) {
 130     std::string trailer =
 131         (method == "HEAD" || method == "PUT" || method == "POST") ?
 132         "Content-Length: 0\r\n\r\n" : "\r\n";
 133     std::string request =
 134         base::StringPrintf("%s http://www.google.com/ HTTP/1.1\r\n"
 135                            "Host: www.google.com\r\n"
 136                            "Proxy-Connection: keep-alive\r\n"
 137                            "%s", method.c_str(), trailer.c_str());
 138
 139     MockWrite data_writes[] = {
 140       MockWrite(request.c_str()),
 141     };
 142
 143     StaticSocketDataProvider data1(data_reads, data_reads_size,
 144                                   data_writes, arraysize(data_writes));
 145     mock_socket_factory_.AddSocketDataProvider(&data1);
 146
 147     // Second data provider returns the expected content.
 148     MockRead data_reads2[3];
 149     size_t data_reads2_index = 0;
 150     data_reads2[data_reads2_index++] = MockRead("HTTP/1.0 200 OK\r\n"
 151                                                 "Server: not-proxy\r\n\r\n");
 152     if (!content.empty())
 153       data_reads2[data_reads2_index++] = MockRead(content.c_str());
 154     data_reads2[data_reads2_index++] = MockRead(SYNCHRONOUS, OK);
 155
 156     MockWrite data_writes2[] = {
 157       MockWrite(request.c_str()),
 158     };
 159     StaticSocketDataProvider data2(data_reads2, data_reads2_index,
 160                                   data_writes2, arraysize(data_writes2));
 161     mock_socket_factory_.AddSocketDataProvider(&data2);
 162
 163     // Expect that we get "content" and not "Bypass message", and that there's
 164     // a "not-proxy" "Server:" header in the final response.
 165     if (retry_expected) {
 166       ExecuteRequestExpectingContentAndHeader(method, content,
 167                                               "server", "not-proxy");
 168     } else {
 169       ExecuteRequestExpectingContentAndHeader(method, content, "", "");
 170     }
 171
 172     // We should also observe the bad proxy in the retry list.
 173     TestBadProxies(expected_retry_info_size, bad_proxy, bad_proxy2);
 174   }
 175
 176   // Simulates a request through a proxy which returns a bypass, which is then
 177   // retried through a direct connection to the origin site.
 178   // Checks that the expected requests were issued, the expected content was
 179   // received, and the proxy |bad_proxy| was marked as bad.
 180   void TestProxyFallbackToDirect(const std::string& bad_proxy) {
 181     MockRead data_reads[] = {
 182       MockRead("HTTP/1.1 200 OK\r\n"
 183                "Chrome-Proxy: bypass=0\r\n\r\n"),
 184       MockRead("Bypass message"),
 185       MockRead(SYNCHRONOUS, OK),
 186     };
 187     MockWrite data_writes[] = {
 188       MockWrite("GET http://www.google.com/ HTTP/1.1\r\n"
 189                 "Host: www.google.com\r\n"
 190                 "Proxy-Connection: keep-alive\r\n\r\n"),
 191     };
 192     StaticSocketDataProvider data1(data_reads, arraysize(data_reads),
 193                                   data_writes, arraysize(data_writes));
 194     mock_socket_factory_.AddSocketDataProvider(&data1);
 195
 196     // Second data provider returns the expected content.
 197     MockRead data_reads2[] = {
 198       MockRead("HTTP/1.0 200 OK\r\n"
 199                "Server: not-proxy\r\n\r\n"),
 200       MockRead("content"),
 201       MockRead(SYNCHRONOUS, OK),
 202     };
 203     MockWrite data_writes2[] = {
 204       MockWrite("GET / HTTP/1.1\r\n"
 205                 "Host: www.google.com\r\n"
 206                 "Connection: keep-alive\r\n\r\n"),
 207     };
 208     StaticSocketDataProvider data2(data_reads2, arraysize(data_reads2),
 209                                    data_writes2, arraysize(data_writes2));
 210     mock_socket_factory_.AddSocketDataProvider(&data2);
 211
 212     // Expect that we get "content" and not "Bypass message", and that there's
 213     // a "not-proxy" "Server:" header in the final response.
 214     ExecuteRequestExpectingContentAndHeader("GET", "content",
 215                                             "server", "not-proxy");
 216
 217     // We should also observe the bad proxy in the retry list.
 218     TestBadProxies(1u, bad_proxy, "");
 219   }
 220
 221   // Simulates a request through a proxy which returns a bypass, under a
 222   // configuration where there is no valid bypass. |proxy_count| proxies
 223   // are expected to be configured.
 224   // Checks that the expected requests were issued, the bypass message was the
 225   // final received content,  and all proxies were marked as bad.
 226   void TestProxyFallbackFail(unsigned int proxy_count,
 227                              const std::string& bad_proxy,
 228                              const std::string& bad_proxy2) {
 229     MockRead data_reads[] = {
 230       MockRead("HTTP/1.1 200 OK\r\n"
 231                "Chrome-Proxy: bypass=0\r\n\r\n"),
 232       MockRead("Bypass message"),
 233       MockRead(SYNCHRONOUS, OK),
 234     };
 235     MockWrite data_writes[] = {
 236       MockWrite("GET http://www.google.com/ HTTP/1.1\r\n"
 237                 "Host: www.google.com\r\n"
 238                 "Proxy-Connection: keep-alive\r\n\r\n"),
 239     };
 240     StaticSocketDataProvider data1(data_reads, arraysize(data_reads),
 241                                    data_writes, arraysize(data_writes));
 242     StaticSocketDataProvider data2(data_reads, arraysize(data_reads),
 243                                    data_writes, arraysize(data_writes));
 244
 245     mock_socket_factory_.AddSocketDataProvider(&data1);
 246     if (proxy_count > 1)
 247       mock_socket_factory_.AddSocketDataProvider(&data2);
 248
 249     // Expect that we get "Bypass message", and not "content"..
 250     ExecuteRequestExpectingContentAndHeader("GET", "Bypass message", "", "");
 251
 252     // We should also observe the bad proxy or proxies in the retry list.
 253     TestBadProxies(proxy_count, bad_proxy, bad_proxy2);
 254   }
 255
 256   MockClientSocketFactory mock_socket_factory_;
 257   MockHostResolver host_resolver_;
 258   scoped_ptr<CertVerifier> cert_verifier_;
 259   scoped_ptr<TransportSecurityState> transport_security_state_;
 260   scoped_ptr<ProxyService> proxy_service_;
 261   const scoped_refptr<SSLConfigService> ssl_config_service_;
 262   scoped_refptr<HttpNetworkSession> network_session_;
 263   scoped_ptr<HttpNetworkLayer> factory_;
 264   HttpServerPropertiesImpl http_server_properties_;
 265 };
 266
 267 TEST_F(HttpNetworkLayerTest, CreateAndDestroy) {
 268   scoped_ptr<HttpTransaction> trans;
 269   int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
 270   EXPECT_EQ(OK, rv);
 271   EXPECT_TRUE(trans.get() != NULL);
 272 }
 273
 274 TEST_F(HttpNetworkLayerTest, Suspend) {
 275   scoped_ptr<HttpTransaction> trans;
 276   int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
 277   EXPECT_EQ(OK, rv);
 278
 279   trans.reset();
 280
 281   factory_->OnSuspend();
 282
 283   rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
 284   EXPECT_EQ(ERR_NETWORK_IO_SUSPENDED, rv);
 285
 286   ASSERT_TRUE(trans == NULL);
 287
 288   factory_->OnResume();
 289
 290   rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
 291   EXPECT_EQ(OK, rv);
 292 }
 293
 294 TEST_F(HttpNetworkLayerTest, GET) {
 295   MockRead data_reads[] = {
 296     MockRead("HTTP/1.0 200 OK\r\n\r\n"),
 297     MockRead("hello world"),
 298     MockRead(SYNCHRONOUS, OK),
 299   };
 300   MockWrite data_writes[] = {
 301     MockWrite("GET / HTTP/1.1\r\n"
 302               "Host: www.google.com\r\n"
 303               "Connection: keep-alive\r\n"
 304               "User-Agent: Foo/1.0\r\n\r\n"),
 305   };
 306   StaticSocketDataProvider data(data_reads, arraysize(data_reads),
 307                                 data_writes, arraysize(data_writes));
 308   mock_socket_factory_.AddSocketDataProvider(&data);
 309
 310   TestCompletionCallback callback;
 311
 312   HttpRequestInfo request_info;
 313   request_info.url = GURL("http://www.google.com/");
 314   request_info.method = "GET";
 315   request_info.extra_headers.SetHeader(HttpRequestHeaders::kUserAgent,
 316                                        "Foo/1.0");
 317   request_info.load_flags = LOAD_NORMAL;
 318
 319   scoped_ptr<HttpTransaction> trans;
 320   int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
 321   EXPECT_EQ(OK, rv);
 322
 323   rv = trans->Start(&request_info, callback.callback(), BoundNetLog());
 324   rv = callback.GetResult(rv);
 325   ASSERT_EQ(OK, rv);
 326
 327   std::string contents;
 328   rv = ReadTransaction(trans.get(), &contents);
 329   EXPECT_EQ(OK, rv);
 330   EXPECT_EQ("hello world", contents);
 331 }
 332
 333 TEST_F(HttpNetworkLayerTest, NetworkVerified) {
 334   MockRead data_reads[] = {
 335     MockRead("HTTP/1.0 200 OK\r\n\r\n"),
 336     MockRead("hello world"),
 337     MockRead(SYNCHRONOUS, OK),
 338   };
 339   MockWrite data_writes[] = {
 340     MockWrite("GET / HTTP/1.1\r\n"
 341               "Host: www.google.com\r\n"
 342               "Connection: keep-alive\r\n"
 343               "User-Agent: Foo/1.0\r\n\r\n"),
 344   };
 345   StaticSocketDataProvider data(data_reads, arraysize(data_reads),
 346                                 data_writes, arraysize(data_writes));
 347   mock_socket_factory_.AddSocketDataProvider(&data);
 348
 349   TestCompletionCallback callback;
 350
 351   HttpRequestInfo request_info;
 352   request_info.url = GURL("http://www.google.com/");
 353   request_info.method = "GET";
 354   request_info.extra_headers.SetHeader(HttpRequestHeaders::kUserAgent,
 355                                        "Foo/1.0");
 356   request_info.load_flags = LOAD_NORMAL;
 357
 358   scoped_ptr<HttpTransaction> trans;
 359   int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
 360   EXPECT_EQ(OK, rv);
 361
 362   rv = trans->Start(&request_info, callback.callback(), BoundNetLog());
 363   ASSERT_EQ(OK, callback.GetResult(rv));
 364
 365   EXPECT_TRUE(trans->GetResponseInfo()->network_accessed);
 366 }
 367
 368 TEST_F(HttpNetworkLayerTest, NetworkUnVerified) {
 369   MockRead data_reads[] = {
 370     MockRead(ASYNC, ERR_CONNECTION_RESET),
 371   };
 372   MockWrite data_writes[] = {
 373     MockWrite("GET / HTTP/1.1\r\n"
 374               "Host: www.google.com\r\n"
 375               "Connection: keep-alive\r\n"
 376               "User-Agent: Foo/1.0\r\n\r\n"),
 377   };
 378   StaticSocketDataProvider data(data_reads, arraysize(data_reads),
 379                                 data_writes, arraysize(data_writes));
 380   mock_socket_factory_.AddSocketDataProvider(&data);
 381
 382   TestCompletionCallback callback;
 383
 384   HttpRequestInfo request_info;
 385   request_info.url = GURL("http://www.google.com/");
 386   request_info.method = "GET";
 387   request_info.extra_headers.SetHeader(HttpRequestHeaders::kUserAgent,
 388                                        "Foo/1.0");
 389   request_info.load_flags = LOAD_NORMAL;
 390
 391   scoped_ptr<HttpTransaction> trans;
 392   int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
 393   EXPECT_EQ(OK, rv);
 394
 395   rv = trans->Start(&request_info, callback.callback(), BoundNetLog());
 396   ASSERT_EQ(ERR_CONNECTION_RESET, callback.GetResult(rv));
 397
 398   // network_accessed is true; the HTTP stack did try to make a connection.
 399   EXPECT_TRUE(trans->GetResponseInfo()->network_accessed);
 400 }
 401
 402 }  // namespace
 403
 404 }  // namespace net