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| 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/url_request/url_request_throttler_manager.h" | |
| 6 | |
| 7 #include "base/memory/scoped_ptr.h" | |
| 8 #include "base/metrics/histogram_samples.h" | |
| 9 #include "base/pickle.h" | |
| 10 #include "base/stl_util.h" | |
| 11 #include "base/strings/string_number_conversions.h" | |
| 12 #include "base/strings/stringprintf.h" | |
| 13 #include "base/test/histogram_tester.h" | |
| 14 #include "base/time/time.h" | |
| 15 #include "net/base/load_flags.h" | |
| 16 #include "net/base/request_priority.h" | |
| 17 #include "net/base/test_completion_callback.h" | |
| 18 #include "net/url_request/url_request.h" | |
| 19 #include "net/url_request/url_request_context.h" | |
| 20 #include "net/url_request/url_request_test_util.h" | |
| 21 #include "net/url_request/url_request_throttler_header_interface.h" | |
| 22 #include "net/url_request/url_request_throttler_test_support.h" | |
| 23 #include "testing/gtest/include/gtest/gtest.h" | |
| 24 | |
| 25 using base::TimeDelta; | |
| 26 using base::TimeTicks; | |
| 27 | |
| 28 namespace net { | |
| 29 | |
| 30 namespace { | |
| 31 | |
| 32 const char kRequestThrottledHistogramName[] = "Throttling.RequestThrottled"; | |
| 33 | |
| 34 class MockURLRequestThrottlerEntry : public URLRequestThrottlerEntry { | |
| 35 public: | |
| 36 explicit MockURLRequestThrottlerEntry( | |
| 37 URLRequestThrottlerManager* manager) | |
| 38 : URLRequestThrottlerEntry(manager, std::string()), | |
| 39 mock_backoff_entry_(&backoff_policy_) { | |
| 40 InitPolicy(); | |
| 41 } | |
| 42 MockURLRequestThrottlerEntry( | |
| 43 URLRequestThrottlerManager* manager, | |
| 44 const TimeTicks& exponential_backoff_release_time, | |
| 45 const TimeTicks& sliding_window_release_time, | |
| 46 const TimeTicks& fake_now) | |
| 47 : URLRequestThrottlerEntry(manager, std::string()), | |
| 48 fake_time_now_(fake_now), | |
| 49 mock_backoff_entry_(&backoff_policy_) { | |
| 50 InitPolicy(); | |
| 51 | |
| 52 mock_backoff_entry_.set_fake_now(fake_now); | |
| 53 set_exponential_backoff_release_time(exponential_backoff_release_time); | |
| 54 set_sliding_window_release_time(sliding_window_release_time); | |
| 55 } | |
| 56 | |
| 57 void InitPolicy() { | |
| 58 // Some tests become flaky if we have jitter. | |
| 59 backoff_policy_.jitter_factor = 0.0; | |
| 60 | |
| 61 // This lets us avoid having to make multiple failures initially (this | |
| 62 // logic is already tested in the BackoffEntry unit tests). | |
| 63 backoff_policy_.num_errors_to_ignore = 0; | |
| 64 } | |
| 65 | |
| 66 const BackoffEntry* GetBackoffEntry() const override { | |
| 67 return &mock_backoff_entry_; | |
| 68 } | |
| 69 | |
| 70 BackoffEntry* GetBackoffEntry() override { return &mock_backoff_entry_; } | |
| 71 | |
| 72 static bool ExplicitUserRequest(int load_flags) { | |
| 73 return URLRequestThrottlerEntry::ExplicitUserRequest(load_flags); | |
| 74 } | |
| 75 | |
| 76 void ResetToBlank(const TimeTicks& time_now) { | |
| 77 fake_time_now_ = time_now; | |
| 78 mock_backoff_entry_.set_fake_now(time_now); | |
| 79 | |
| 80 GetBackoffEntry()->Reset(); | |
| 81 GetBackoffEntry()->SetCustomReleaseTime(time_now); | |
| 82 set_sliding_window_release_time(time_now); | |
| 83 } | |
| 84 | |
| 85 // Overridden for tests. | |
| 86 TimeTicks ImplGetTimeNow() const override { return fake_time_now_; } | |
| 87 | |
| 88 void set_exponential_backoff_release_time( | |
| 89 const base::TimeTicks& release_time) { | |
| 90 GetBackoffEntry()->SetCustomReleaseTime(release_time); | |
| 91 } | |
| 92 | |
| 93 base::TimeTicks sliding_window_release_time() const { | |
| 94 return URLRequestThrottlerEntry::sliding_window_release_time(); | |
| 95 } | |
| 96 | |
| 97 void set_sliding_window_release_time( | |
| 98 const base::TimeTicks& release_time) { | |
| 99 URLRequestThrottlerEntry::set_sliding_window_release_time( | |
| 100 release_time); | |
| 101 } | |
| 102 | |
| 103 TimeTicks fake_time_now_; | |
| 104 MockBackoffEntry mock_backoff_entry_; | |
| 105 | |
| 106 protected: | |
| 107 ~MockURLRequestThrottlerEntry() override {} | |
| 108 }; | |
| 109 | |
| 110 class MockURLRequestThrottlerManager : public URLRequestThrottlerManager { | |
| 111 public: | |
| 112 MockURLRequestThrottlerManager() : create_entry_index_(0) {} | |
| 113 | |
| 114 // Method to process the URL using URLRequestThrottlerManager protected | |
| 115 // method. | |
| 116 std::string DoGetUrlIdFromUrl(const GURL& url) { return GetIdFromUrl(url); } | |
| 117 | |
| 118 // Method to use the garbage collecting method of URLRequestThrottlerManager. | |
| 119 void DoGarbageCollectEntries() { GarbageCollectEntries(); } | |
| 120 | |
| 121 // Returns the number of entries in the map. | |
| 122 int GetNumberOfEntries() const { return GetNumberOfEntriesForTests(); } | |
| 123 | |
| 124 void CreateEntry(bool is_outdated) { | |
| 125 TimeTicks time = TimeTicks::Now(); | |
| 126 if (is_outdated) { | |
| 127 time -= TimeDelta::FromMilliseconds( | |
| 128 MockURLRequestThrottlerEntry::kDefaultEntryLifetimeMs + 1000); | |
| 129 } | |
| 130 std::string fake_url_string("http://www.fakeurl.com/"); | |
| 131 fake_url_string.append(base::IntToString(create_entry_index_++)); | |
| 132 GURL fake_url(fake_url_string); | |
| 133 OverrideEntryForTests( | |
| 134 fake_url, | |
| 135 new MockURLRequestThrottlerEntry(this, time, TimeTicks::Now(), | |
| 136 TimeTicks::Now())); | |
| 137 } | |
| 138 | |
| 139 private: | |
| 140 int create_entry_index_; | |
| 141 }; | |
| 142 | |
| 143 struct TimeAndBool { | |
| 144 TimeAndBool(const TimeTicks& time_value, bool expected, int line_num) { | |
| 145 time = time_value; | |
| 146 result = expected; | |
| 147 line = line_num; | |
| 148 } | |
| 149 TimeTicks time; | |
| 150 bool result; | |
| 151 int line; | |
| 152 }; | |
| 153 | |
| 154 struct GurlAndString { | |
| 155 GurlAndString(const GURL& url_value, | |
| 156 const std::string& expected, | |
| 157 int line_num) { | |
| 158 url = url_value; | |
| 159 result = expected; | |
| 160 line = line_num; | |
| 161 } | |
| 162 GURL url; | |
| 163 std::string result; | |
| 164 int line; | |
| 165 }; | |
| 166 | |
| 167 } // namespace | |
| 168 | |
| 169 class URLRequestThrottlerEntryTest : public testing::Test { | |
| 170 protected: | |
| 171 URLRequestThrottlerEntryTest() | |
| 172 : request_(context_.CreateRequest(GURL(), DEFAULT_PRIORITY, NULL, NULL)) { | |
| 173 } | |
| 174 | |
| 175 void SetUp() override; | |
| 176 | |
| 177 TimeTicks now_; | |
| 178 MockURLRequestThrottlerManager manager_; // Dummy object, not used. | |
| 179 scoped_refptr<MockURLRequestThrottlerEntry> entry_; | |
| 180 | |
| 181 TestURLRequestContext context_; | |
| 182 scoped_ptr<URLRequest> request_; | |
| 183 }; | |
| 184 | |
| 185 void URLRequestThrottlerEntryTest::SetUp() { | |
| 186 request_->SetLoadFlags(0); | |
| 187 | |
| 188 now_ = TimeTicks::Now(); | |
| 189 entry_ = new MockURLRequestThrottlerEntry(&manager_); | |
| 190 entry_->ResetToBlank(now_); | |
| 191 } | |
| 192 | |
| 193 std::ostream& operator<<(std::ostream& out, const base::TimeTicks& time) { | |
| 194 return out << time.ToInternalValue(); | |
| 195 } | |
| 196 | |
| 197 TEST_F(URLRequestThrottlerEntryTest, CanThrottleRequest) { | |
| 198 TestNetworkDelegate d; | |
| 199 context_.set_network_delegate(&d); | |
| 200 entry_->set_exponential_backoff_release_time( | |
| 201 entry_->fake_time_now_ + TimeDelta::FromMilliseconds(1)); | |
| 202 | |
| 203 d.set_can_throttle_requests(false); | |
| 204 EXPECT_FALSE(entry_->ShouldRejectRequest(*request_, | |
| 205 context_.network_delegate())); | |
| 206 d.set_can_throttle_requests(true); | |
| 207 EXPECT_TRUE(entry_->ShouldRejectRequest(*request_, | |
| 208 context_.network_delegate())); | |
| 209 } | |
| 210 | |
| 211 TEST_F(URLRequestThrottlerEntryTest, InterfaceDuringExponentialBackoff) { | |
| 212 base::HistogramTester histogram_tester; | |
| 213 entry_->set_exponential_backoff_release_time( | |
| 214 entry_->fake_time_now_ + TimeDelta::FromMilliseconds(1)); | |
| 215 EXPECT_TRUE(entry_->ShouldRejectRequest(*request_, | |
| 216 context_.network_delegate())); | |
| 217 | |
| 218 // Also end-to-end test the load flags exceptions. | |
| 219 request_->SetLoadFlags(LOAD_MAYBE_USER_GESTURE); | |
| 220 EXPECT_FALSE(entry_->ShouldRejectRequest(*request_, | |
| 221 context_.network_delegate())); | |
| 222 | |
| 223 histogram_tester.ExpectBucketCount(kRequestThrottledHistogramName, 0, 1); | |
| 224 histogram_tester.ExpectBucketCount(kRequestThrottledHistogramName, 1, 1); | |
| 225 } | |
| 226 | |
| 227 TEST_F(URLRequestThrottlerEntryTest, InterfaceNotDuringExponentialBackoff) { | |
| 228 base::HistogramTester histogram_tester; | |
| 229 entry_->set_exponential_backoff_release_time(entry_->fake_time_now_); | |
| 230 EXPECT_FALSE(entry_->ShouldRejectRequest(*request_, | |
| 231 context_.network_delegate())); | |
| 232 entry_->set_exponential_backoff_release_time( | |
| 233 entry_->fake_time_now_ - TimeDelta::FromMilliseconds(1)); | |
| 234 EXPECT_FALSE(entry_->ShouldRejectRequest(*request_, | |
| 235 context_.network_delegate())); | |
| 236 | |
| 237 histogram_tester.ExpectBucketCount(kRequestThrottledHistogramName, 0, 2); | |
| 238 histogram_tester.ExpectBucketCount(kRequestThrottledHistogramName, 1, 0); | |
| 239 } | |
| 240 | |
| 241 TEST_F(URLRequestThrottlerEntryTest, InterfaceUpdateFailure) { | |
| 242 MockURLRequestThrottlerHeaderAdapter failure_response(503); | |
| 243 entry_->UpdateWithResponse(std::string(), &failure_response); | |
| 244 EXPECT_GT(entry_->GetExponentialBackoffReleaseTime(), entry_->fake_time_now_) | |
| 245 << "A failure should increase the release_time"; | |
| 246 } | |
| 247 | |
| 248 TEST_F(URLRequestThrottlerEntryTest, InterfaceUpdateSuccess) { | |
| 249 MockURLRequestThrottlerHeaderAdapter success_response(200); | |
| 250 entry_->UpdateWithResponse(std::string(), &success_response); | |
| 251 EXPECT_EQ(entry_->GetExponentialBackoffReleaseTime(), entry_->fake_time_now_) | |
| 252 << "A success should not add any delay"; | |
| 253 } | |
| 254 | |
| 255 TEST_F(URLRequestThrottlerEntryTest, InterfaceUpdateSuccessThenFailure) { | |
| 256 MockURLRequestThrottlerHeaderAdapter failure_response(503); | |
| 257 MockURLRequestThrottlerHeaderAdapter success_response(200); | |
| 258 entry_->UpdateWithResponse(std::string(), &success_response); | |
| 259 entry_->UpdateWithResponse(std::string(), &failure_response); | |
| 260 EXPECT_GT(entry_->GetExponentialBackoffReleaseTime(), entry_->fake_time_now_) | |
| 261 << "This scenario should add delay"; | |
| 262 entry_->UpdateWithResponse(std::string(), &success_response); | |
| 263 } | |
| 264 | |
| 265 TEST_F(URLRequestThrottlerEntryTest, IsEntryReallyOutdated) { | |
| 266 TimeDelta lifetime = TimeDelta::FromMilliseconds( | |
| 267 MockURLRequestThrottlerEntry::kDefaultEntryLifetimeMs); | |
| 268 const TimeDelta kFiveMs = TimeDelta::FromMilliseconds(5); | |
| 269 | |
| 270 TimeAndBool test_values[] = { | |
| 271 TimeAndBool(now_, false, __LINE__), | |
| 272 TimeAndBool(now_ - kFiveMs, false, __LINE__), | |
| 273 TimeAndBool(now_ + kFiveMs, false, __LINE__), | |
| 274 TimeAndBool(now_ - (lifetime - kFiveMs), false, __LINE__), | |
| 275 TimeAndBool(now_ - lifetime, true, __LINE__), | |
| 276 TimeAndBool(now_ - (lifetime + kFiveMs), true, __LINE__)}; | |
| 277 | |
| 278 for (unsigned int i = 0; i < arraysize(test_values); ++i) { | |
| 279 entry_->set_exponential_backoff_release_time(test_values[i].time); | |
| 280 EXPECT_EQ(entry_->IsEntryOutdated(), test_values[i].result) << | |
| 281 "Test case #" << i << " line " << test_values[i].line << " failed"; | |
| 282 } | |
| 283 } | |
| 284 | |
| 285 TEST_F(URLRequestThrottlerEntryTest, MaxAllowedBackoff) { | |
| 286 for (int i = 0; i < 30; ++i) { | |
| 287 MockURLRequestThrottlerHeaderAdapter response_adapter(503); | |
| 288 entry_->UpdateWithResponse(std::string(), &response_adapter); | |
| 289 } | |
| 290 | |
| 291 TimeDelta delay = entry_->GetExponentialBackoffReleaseTime() - now_; | |
| 292 EXPECT_EQ(delay.InMilliseconds(), | |
| 293 MockURLRequestThrottlerEntry::kDefaultMaximumBackoffMs); | |
| 294 } | |
| 295 | |
| 296 TEST_F(URLRequestThrottlerEntryTest, MalformedContent) { | |
| 297 MockURLRequestThrottlerHeaderAdapter response_adapter(503); | |
| 298 for (int i = 0; i < 5; ++i) | |
| 299 entry_->UpdateWithResponse(std::string(), &response_adapter); | |
| 300 | |
| 301 TimeTicks release_after_failures = entry_->GetExponentialBackoffReleaseTime(); | |
| 302 | |
| 303 // Inform the entry that a response body was malformed, which is supposed to | |
| 304 // increase the back-off time. Note that we also submit a successful | |
| 305 // UpdateWithResponse to pair with ReceivedContentWasMalformed() since that | |
| 306 // is what happens in practice (if a body is received, then a non-500 | |
| 307 // response must also have been received). | |
| 308 entry_->ReceivedContentWasMalformed(200); | |
| 309 MockURLRequestThrottlerHeaderAdapter success_adapter(200); | |
| 310 entry_->UpdateWithResponse(std::string(), &success_adapter); | |
| 311 EXPECT_GT(entry_->GetExponentialBackoffReleaseTime(), release_after_failures); | |
| 312 } | |
| 313 | |
| 314 TEST_F(URLRequestThrottlerEntryTest, SlidingWindow) { | |
| 315 int max_send = URLRequestThrottlerEntry::kDefaultMaxSendThreshold; | |
| 316 int sliding_window = | |
| 317 URLRequestThrottlerEntry::kDefaultSlidingWindowPeriodMs; | |
| 318 | |
| 319 TimeTicks time_1 = entry_->fake_time_now_ + | |
| 320 TimeDelta::FromMilliseconds(sliding_window / 3); | |
| 321 TimeTicks time_2 = entry_->fake_time_now_ + | |
| 322 TimeDelta::FromMilliseconds(2 * sliding_window / 3); | |
| 323 TimeTicks time_3 = entry_->fake_time_now_ + | |
| 324 TimeDelta::FromMilliseconds(sliding_window); | |
| 325 TimeTicks time_4 = entry_->fake_time_now_ + | |
| 326 TimeDelta::FromMilliseconds(sliding_window + 2 * sliding_window / 3); | |
| 327 | |
| 328 entry_->set_exponential_backoff_release_time(time_1); | |
| 329 | |
| 330 for (int i = 0; i < max_send / 2; ++i) { | |
| 331 EXPECT_EQ(2 * sliding_window / 3, | |
| 332 entry_->ReserveSendingTimeForNextRequest(time_2)); | |
| 333 } | |
| 334 EXPECT_EQ(time_2, entry_->sliding_window_release_time()); | |
| 335 | |
| 336 entry_->fake_time_now_ = time_3; | |
| 337 | |
| 338 for (int i = 0; i < (max_send + 1) / 2; ++i) | |
| 339 EXPECT_EQ(0, entry_->ReserveSendingTimeForNextRequest(TimeTicks())); | |
| 340 | |
| 341 EXPECT_EQ(time_4, entry_->sliding_window_release_time()); | |
| 342 } | |
| 343 | |
| 344 TEST_F(URLRequestThrottlerEntryTest, ExplicitUserRequest) { | |
| 345 ASSERT_FALSE(MockURLRequestThrottlerEntry::ExplicitUserRequest(0)); | |
| 346 ASSERT_TRUE(MockURLRequestThrottlerEntry::ExplicitUserRequest( | |
| 347 LOAD_MAYBE_USER_GESTURE)); | |
| 348 ASSERT_FALSE(MockURLRequestThrottlerEntry::ExplicitUserRequest( | |
| 349 ~LOAD_MAYBE_USER_GESTURE)); | |
| 350 } | |
| 351 | |
| 352 class URLRequestThrottlerManagerTest : public testing::Test { | |
| 353 protected: | |
| 354 URLRequestThrottlerManagerTest() | |
| 355 : request_(context_.CreateRequest(GURL(), DEFAULT_PRIORITY, NULL, NULL)) { | |
| 356 } | |
| 357 | |
| 358 void SetUp() override { request_->SetLoadFlags(0); } | |
| 359 | |
| 360 void ExpectEntryAllowsAllOnErrorIfOptedOut( | |
| 361 URLRequestThrottlerEntryInterface* entry, | |
| 362 bool opted_out, | |
| 363 const URLRequest& request) { | |
| 364 EXPECT_FALSE(entry->ShouldRejectRequest(request, | |
| 365 context_.network_delegate())); | |
| 366 MockURLRequestThrottlerHeaderAdapter failure_adapter(503); | |
| 367 for (int i = 0; i < 10; ++i) { | |
| 368 // Host doesn't really matter in this scenario so we skip it. | |
| 369 entry->UpdateWithResponse(std::string(), &failure_adapter); | |
| 370 } | |
| 371 EXPECT_NE(opted_out, entry->ShouldRejectRequest( | |
| 372 request, context_.network_delegate())); | |
| 373 | |
| 374 if (opted_out) { | |
| 375 // We're not mocking out GetTimeNow() in this scenario | |
| 376 // so add a 100 ms buffer to avoid flakiness (that should always | |
| 377 // give enough time to get from the TimeTicks::Now() call here | |
| 378 // to the TimeTicks::Now() call in the entry class). | |
| 379 EXPECT_GT(TimeTicks::Now() + TimeDelta::FromMilliseconds(100), | |
| 380 entry->GetExponentialBackoffReleaseTime()); | |
| 381 } else { | |
| 382 // As above, add 100 ms. | |
| 383 EXPECT_LT(TimeTicks::Now() + TimeDelta::FromMilliseconds(100), | |
| 384 entry->GetExponentialBackoffReleaseTime()); | |
| 385 } | |
| 386 } | |
| 387 | |
| 388 // context_ must be declared before request_. | |
| 389 TestURLRequestContext context_; | |
| 390 scoped_ptr<URLRequest> request_; | |
| 391 }; | |
| 392 | |
| 393 TEST_F(URLRequestThrottlerManagerTest, IsUrlStandardised) { | |
| 394 MockURLRequestThrottlerManager manager; | |
| 395 GurlAndString test_values[] = { | |
| 396 GurlAndString(GURL("http://www.example.com"), | |
| 397 std::string("http://www.example.com/"), | |
| 398 __LINE__), | |
| 399 GurlAndString(GURL("http://www.Example.com"), | |
| 400 std::string("http://www.example.com/"), | |
| 401 __LINE__), | |
| 402 GurlAndString(GURL("http://www.ex4mple.com/Pr4c71c41"), | |
| 403 std::string("http://www.ex4mple.com/pr4c71c41"), | |
| 404 __LINE__), | |
| 405 GurlAndString(GURL("http://www.example.com/0/token/false"), | |
| 406 std::string("http://www.example.com/0/token/false"), | |
| 407 __LINE__), | |
| 408 GurlAndString(GURL("http://www.example.com/index.php?code=javascript"), | |
| 409 std::string("http://www.example.com/index.php"), | |
| 410 __LINE__), | |
| 411 GurlAndString(GURL("http://www.example.com/index.php?code=1#superEntry"), | |
| 412 std::string("http://www.example.com/index.php"), | |
| 413 __LINE__), | |
| 414 GurlAndString(GURL("http://www.example.com/index.php#superEntry"), | |
| 415 std::string("http://www.example.com/index.php"), | |
| 416 __LINE__), | |
| 417 GurlAndString(GURL("http://www.example.com:1234/"), | |
| 418 std::string("http://www.example.com:1234/"), | |
| 419 __LINE__)}; | |
| 420 | |
| 421 for (unsigned int i = 0; i < arraysize(test_values); ++i) { | |
| 422 std::string temp = manager.DoGetUrlIdFromUrl(test_values[i].url); | |
| 423 EXPECT_EQ(temp, test_values[i].result) << | |
| 424 "Test case #" << i << " line " << test_values[i].line << " failed"; | |
| 425 } | |
| 426 } | |
| 427 | |
| 428 TEST_F(URLRequestThrottlerManagerTest, AreEntriesBeingCollected) { | |
| 429 MockURLRequestThrottlerManager manager; | |
| 430 | |
| 431 manager.CreateEntry(true); // true = Entry is outdated. | |
| 432 manager.CreateEntry(true); | |
| 433 manager.CreateEntry(true); | |
| 434 manager.DoGarbageCollectEntries(); | |
| 435 EXPECT_EQ(0, manager.GetNumberOfEntries()); | |
| 436 | |
| 437 manager.CreateEntry(false); | |
| 438 manager.CreateEntry(false); | |
| 439 manager.CreateEntry(false); | |
| 440 manager.CreateEntry(true); | |
| 441 manager.DoGarbageCollectEntries(); | |
| 442 EXPECT_EQ(3, manager.GetNumberOfEntries()); | |
| 443 } | |
| 444 | |
| 445 TEST_F(URLRequestThrottlerManagerTest, IsHostBeingRegistered) { | |
| 446 MockURLRequestThrottlerManager manager; | |
| 447 | |
| 448 manager.RegisterRequestUrl(GURL("http://www.example.com/")); | |
| 449 manager.RegisterRequestUrl(GURL("http://www.google.com/")); | |
| 450 manager.RegisterRequestUrl(GURL("http://www.google.com/index/0")); | |
| 451 manager.RegisterRequestUrl(GURL("http://www.google.com/index/0?code=1")); | |
| 452 manager.RegisterRequestUrl(GURL("http://www.google.com/index/0#lolsaure")); | |
| 453 | |
| 454 EXPECT_EQ(3, manager.GetNumberOfEntries()); | |
| 455 } | |
| 456 | |
| 457 TEST_F(URLRequestThrottlerManagerTest, OptOutHeader) { | |
| 458 MockURLRequestThrottlerManager manager; | |
| 459 scoped_refptr<URLRequestThrottlerEntryInterface> entry = | |
| 460 manager.RegisterRequestUrl(GURL("http://www.google.com/yodude")); | |
| 461 | |
| 462 // Fake a response with the opt-out header. | |
| 463 MockURLRequestThrottlerHeaderAdapter response_adapter( | |
| 464 std::string(), | |
| 465 MockURLRequestThrottlerEntry::kExponentialThrottlingDisableValue, | |
| 466 200); | |
| 467 entry->UpdateWithResponse("www.google.com", &response_adapter); | |
| 468 | |
| 469 // Ensure that the same entry on error always allows everything. | |
| 470 ExpectEntryAllowsAllOnErrorIfOptedOut(entry.get(), true, *request_); | |
| 471 | |
| 472 // Ensure that a freshly created entry (for a different URL on an | |
| 473 // already opted-out host) also gets "always allow" behavior. | |
| 474 scoped_refptr<URLRequestThrottlerEntryInterface> other_entry = | |
| 475 manager.RegisterRequestUrl(GURL("http://www.google.com/bingobob")); | |
| 476 ExpectEntryAllowsAllOnErrorIfOptedOut(other_entry.get(), true, *request_); | |
| 477 | |
| 478 // Fake a response with the opt-out header incorrectly specified. | |
| 479 scoped_refptr<URLRequestThrottlerEntryInterface> no_opt_out_entry = | |
| 480 manager.RegisterRequestUrl(GURL("http://www.nike.com/justdoit")); | |
| 481 MockURLRequestThrottlerHeaderAdapter wrong_adapter( | |
| 482 std::string(), "yesplease", 200); | |
| 483 no_opt_out_entry->UpdateWithResponse("www.nike.com", &wrong_adapter); | |
| 484 ExpectEntryAllowsAllOnErrorIfOptedOut( | |
| 485 no_opt_out_entry.get(), false, *request_); | |
| 486 | |
| 487 // A localhost entry should always be opted out. | |
| 488 scoped_refptr<URLRequestThrottlerEntryInterface> localhost_entry = | |
| 489 manager.RegisterRequestUrl(GURL("http://localhost/hello")); | |
| 490 ExpectEntryAllowsAllOnErrorIfOptedOut(localhost_entry.get(), true, *request_); | |
| 491 } | |
| 492 | |
| 493 TEST_F(URLRequestThrottlerManagerTest, ClearOnNetworkChange) { | |
| 494 for (int i = 0; i < 3; ++i) { | |
| 495 MockURLRequestThrottlerManager manager; | |
| 496 scoped_refptr<URLRequestThrottlerEntryInterface> entry_before = | |
| 497 manager.RegisterRequestUrl(GURL("http://www.example.com/")); | |
| 498 MockURLRequestThrottlerHeaderAdapter failure_adapter(503); | |
| 499 for (int j = 0; j < 10; ++j) { | |
| 500 // Host doesn't really matter in this scenario so we skip it. | |
| 501 entry_before->UpdateWithResponse(std::string(), &failure_adapter); | |
| 502 } | |
| 503 EXPECT_TRUE(entry_before->ShouldRejectRequest(*request_, | |
| 504 context_.network_delegate())); | |
| 505 | |
| 506 switch (i) { | |
| 507 case 0: | |
| 508 manager.OnIPAddressChanged(); | |
| 509 break; | |
| 510 case 1: | |
| 511 manager.OnConnectionTypeChanged( | |
| 512 NetworkChangeNotifier::CONNECTION_UNKNOWN); | |
| 513 break; | |
| 514 case 2: | |
| 515 manager.OnConnectionTypeChanged(NetworkChangeNotifier::CONNECTION_NONE); | |
| 516 break; | |
| 517 default: | |
| 518 FAIL(); | |
| 519 } | |
| 520 | |
| 521 scoped_refptr<URLRequestThrottlerEntryInterface> entry_after = | |
| 522 manager.RegisterRequestUrl(GURL("http://www.example.com/")); | |
| 523 EXPECT_FALSE(entry_after->ShouldRejectRequest( | |
| 524 *request_, context_.network_delegate())); | |
| 525 } | |
| 526 } | |
| 527 | |
| 528 } // namespace net | |
| OLD | NEW |