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| 1 // Copyright 2015 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/dns/host_resolver_mojo.h" |
| 6 |
| 7 #include <string> |
| 8 |
| 9 #include "base/memory/scoped_vector.h" |
| 10 #include "net/base/address_list.h" |
| 11 #include "net/base/net_errors.h" |
| 12 #include "net/base/request_priority.h" |
| 13 #include "net/base/test_completion_callback.h" |
| 14 #include "net/dns/mojo_type_converters.h" |
| 15 #include "net/test/event_waiter.h" |
| 16 #include "testing/gtest/include/gtest/gtest.h" |
| 17 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h" |
| 18 #include "third_party/mojo/src/mojo/public/cpp/bindings/error_handler.h" |
| 19 |
| 20 namespace net { |
| 21 namespace { |
| 22 |
| 23 void Fail(int result) { |
| 24 FAIL() << "Unexpected callback called with error " << result; |
| 25 } |
| 26 |
| 27 class MockMojoHostResolverRequest : public mojo::ErrorHandler { |
| 28 public: |
| 29 MockMojoHostResolverRequest(interfaces::HostResolverRequestClientPtr client, |
| 30 const base::Closure& error_callback); |
| 31 void OnConnectionError() override; |
| 32 |
| 33 private: |
| 34 interfaces::HostResolverRequestClientPtr client_; |
| 35 const base::Closure error_callback_; |
| 36 }; |
| 37 |
| 38 MockMojoHostResolverRequest::MockMojoHostResolverRequest( |
| 39 interfaces::HostResolverRequestClientPtr client, |
| 40 const base::Closure& error_callback) |
| 41 : client_(client.Pass()), error_callback_(error_callback) { |
| 42 client_.set_error_handler(this); |
| 43 } |
| 44 |
| 45 void MockMojoHostResolverRequest::OnConnectionError() { |
| 46 error_callback_.Run(); |
| 47 } |
| 48 |
| 49 struct HostResolverAction { |
| 50 enum Action { |
| 51 COMPLETE, |
| 52 DROP, |
| 53 RETAIN, |
| 54 }; |
| 55 |
| 56 static scoped_ptr<HostResolverAction> ReturnError(Error error) { |
| 57 scoped_ptr<HostResolverAction> result(new HostResolverAction); |
| 58 result->error = error; |
| 59 return result.Pass(); |
| 60 } |
| 61 |
| 62 static scoped_ptr<HostResolverAction> ReturnResult( |
| 63 const AddressList& address_list) { |
| 64 scoped_ptr<HostResolverAction> result(new HostResolverAction); |
| 65 result->addresses = interfaces::AddressList::From(address_list); |
| 66 return result.Pass(); |
| 67 } |
| 68 |
| 69 static scoped_ptr<HostResolverAction> DropRequest() { |
| 70 scoped_ptr<HostResolverAction> result(new HostResolverAction); |
| 71 result->action = DROP; |
| 72 return result.Pass(); |
| 73 } |
| 74 |
| 75 static scoped_ptr<HostResolverAction> RetainRequest() { |
| 76 scoped_ptr<HostResolverAction> result(new HostResolverAction); |
| 77 result->action = RETAIN; |
| 78 return result.Pass(); |
| 79 } |
| 80 |
| 81 Action action = COMPLETE; |
| 82 interfaces::AddressListPtr addresses; |
| 83 Error error = OK; |
| 84 }; |
| 85 |
| 86 class MockMojoHostResolver : public interfaces::HostResolver, |
| 87 public mojo::ErrorHandler { |
| 88 public: |
| 89 MockMojoHostResolver(mojo::InterfaceRequest<interfaces::HostResolver> request, |
| 90 const base::Closure& resolver_connection_error_callback, |
| 91 const base::Closure& request_connection_error_callback); |
| 92 ~MockMojoHostResolver() override; |
| 93 |
| 94 void AddAction(scoped_ptr<HostResolverAction> action); |
| 95 |
| 96 const mojo::Array<interfaces::HostResolverRequestInfoPtr>& requests() { |
| 97 return requests_received_; |
| 98 } |
| 99 |
| 100 private: |
| 101 // interfaces::HostResolver override. |
| 102 void Resolve(interfaces::HostResolverRequestInfoPtr request_info, |
| 103 interfaces::HostResolverRequestClientPtr client) override; |
| 104 |
| 105 // mojo::ErrorHandler override. |
| 106 void OnConnectionError() override; |
| 107 |
| 108 mojo::Binding<interfaces::HostResolver> binding_; |
| 109 ScopedVector<HostResolverAction> actions_; |
| 110 size_t results_returned_ = 0; |
| 111 mojo::Array<interfaces::HostResolverRequestInfoPtr> requests_received_; |
| 112 const base::Closure resolver_connection_error_callback_; |
| 113 const base::Closure request_connection_error_callback_; |
| 114 ScopedVector<MockMojoHostResolverRequest> requests_; |
| 115 }; |
| 116 |
| 117 MockMojoHostResolver::MockMojoHostResolver( |
| 118 mojo::InterfaceRequest<interfaces::HostResolver> request, |
| 119 const base::Closure& resolver_connection_error_callback, |
| 120 const base::Closure& request_connection_error_callback) |
| 121 : binding_(this, request.Pass()), |
| 122 resolver_connection_error_callback_(resolver_connection_error_callback), |
| 123 request_connection_error_callback_(request_connection_error_callback) { |
| 124 binding_.set_error_handler(this); |
| 125 } |
| 126 |
| 127 MockMojoHostResolver::~MockMojoHostResolver() { |
| 128 EXPECT_EQ(results_returned_, actions_.size()); |
| 129 } |
| 130 |
| 131 void MockMojoHostResolver::OnConnectionError() { |
| 132 resolver_connection_error_callback_.Run(); |
| 133 } |
| 134 |
| 135 void MockMojoHostResolver::AddAction(scoped_ptr<HostResolverAction> action) { |
| 136 actions_.push_back(action.release()); |
| 137 } |
| 138 |
| 139 void MockMojoHostResolver::Resolve( |
| 140 interfaces::HostResolverRequestInfoPtr request_info, |
| 141 interfaces::HostResolverRequestClientPtr client) { |
| 142 requests_received_.push_back(request_info.Pass()); |
| 143 ASSERT_LE(results_returned_, actions_.size()); |
| 144 switch (actions_[results_returned_]->action) { |
| 145 case HostResolverAction::COMPLETE: |
| 146 client->ReportResult(actions_[results_returned_]->error, |
| 147 actions_[results_returned_]->addresses.Pass()); |
| 148 break; |
| 149 case HostResolverAction::RETAIN: |
| 150 requests_.push_back(new MockMojoHostResolverRequest( |
| 151 client.Pass(), request_connection_error_callback_)); |
| 152 break; |
| 153 case HostResolverAction::DROP: |
| 154 client.reset(); |
| 155 break; |
| 156 } |
| 157 results_returned_++; |
| 158 } |
| 159 |
| 160 } // namespace |
| 161 |
| 162 class HostResolverMojoTest : public testing::Test { |
| 163 protected: |
| 164 enum class ConnectionErrorSource { |
| 165 RESOLVER, |
| 166 REQUEST, |
| 167 CLIENT, |
| 168 }; |
| 169 using Waiter = EventWaiter<ConnectionErrorSource>; |
| 170 |
| 171 void SetUp() override { |
| 172 interfaces::HostResolverPtr resolver_ptr; |
| 173 mock_resolver_.reset(new MockMojoHostResolver( |
| 174 mojo::GetProxy(&resolver_ptr), |
| 175 base::Bind(&Waiter::NotifyEvent, base::Unretained(&waiter_), |
| 176 ConnectionErrorSource::RESOLVER), |
| 177 base::Bind(&Waiter::NotifyEvent, base::Unretained(&waiter_), |
| 178 ConnectionErrorSource::REQUEST))); |
| 179 resolver_.reset(new HostResolverMojo( |
| 180 resolver_ptr.Pass(), |
| 181 base::Bind(&Waiter::NotifyEvent, base::Unretained(&waiter_), |
| 182 ConnectionErrorSource::CLIENT))); |
| 183 } |
| 184 |
| 185 int Resolve(const HostResolver::RequestInfo& request_info, |
| 186 AddressList* result) { |
| 187 HostResolver::RequestHandle request_handle = nullptr; |
| 188 TestCompletionCallback callback; |
| 189 return callback.GetResult(resolver_->Resolve( |
| 190 request_info, DEFAULT_PRIORITY, result, callback.callback(), |
| 191 &request_handle, BoundNetLog())); |
| 192 } |
| 193 |
| 194 scoped_ptr<MockMojoHostResolver> mock_resolver_; |
| 195 |
| 196 scoped_ptr<HostResolverMojo> resolver_; |
| 197 |
| 198 Waiter waiter_; |
| 199 }; |
| 200 |
| 201 TEST_F(HostResolverMojoTest, Basic) { |
| 202 AddressList address_list; |
| 203 IPAddressNumber address_number; |
| 204 ASSERT_TRUE(ParseIPLiteralToNumber("1.2.3.4", &address_number)); |
| 205 address_list.push_back(IPEndPoint(address_number, 12345)); |
| 206 address_list.push_back( |
| 207 IPEndPoint(ConvertIPv4NumberToIPv6Number(address_number), 12345)); |
| 208 mock_resolver_->AddAction(HostResolverAction::ReturnResult(address_list)); |
| 209 HostResolver::RequestInfo request_info( |
| 210 HostPortPair::FromString("example.com:12345")); |
| 211 AddressList result; |
| 212 EXPECT_EQ(OK, Resolve(request_info, &result)); |
| 213 ASSERT_EQ(2u, result.size()); |
| 214 EXPECT_EQ(address_list[0], result[0]); |
| 215 EXPECT_EQ(address_list[1], result[1]); |
| 216 |
| 217 ASSERT_EQ(1u, mock_resolver_->requests().size()); |
| 218 interfaces::HostResolverRequestInfo& request = *mock_resolver_->requests()[0]; |
| 219 EXPECT_EQ("example.com", request.host.To<std::string>()); |
| 220 EXPECT_EQ(12345, request.port); |
| 221 EXPECT_EQ(interfaces::ADDRESS_FAMILY_UNSPECIFIED, request.address_family); |
| 222 EXPECT_FALSE(request.is_my_ip_address); |
| 223 } |
| 224 |
| 225 TEST_F(HostResolverMojoTest, Multiple) { |
| 226 AddressList address_list; |
| 227 IPAddressNumber address_number; |
| 228 ASSERT_TRUE(ParseIPLiteralToNumber("1.2.3.4", &address_number)); |
| 229 address_list.push_back(IPEndPoint(address_number, 12345)); |
| 230 mock_resolver_->AddAction(HostResolverAction::ReturnResult(address_list)); |
| 231 mock_resolver_->AddAction( |
| 232 HostResolverAction::ReturnError(ERR_NAME_NOT_RESOLVED)); |
| 233 HostResolver::RequestInfo request_info1( |
| 234 HostPortPair::FromString("example.com:12345")); |
| 235 request_info1.set_address_family(ADDRESS_FAMILY_IPV4); |
| 236 request_info1.set_is_my_ip_address(true); |
| 237 HostResolver::RequestInfo request_info2( |
| 238 HostPortPair::FromString("example.org:80")); |
| 239 request_info2.set_address_family(ADDRESS_FAMILY_IPV6); |
| 240 AddressList result1; |
| 241 AddressList result2; |
| 242 HostResolver::RequestHandle request_handle1 = nullptr; |
| 243 HostResolver::RequestHandle request_handle2 = nullptr; |
| 244 TestCompletionCallback callback1; |
| 245 TestCompletionCallback callback2; |
| 246 ASSERT_EQ(ERR_IO_PENDING, |
| 247 resolver_->Resolve(request_info1, DEFAULT_PRIORITY, &result1, |
| 248 callback1.callback(), &request_handle1, |
| 249 BoundNetLog())); |
| 250 ASSERT_EQ(ERR_IO_PENDING, |
| 251 resolver_->Resolve(request_info2, DEFAULT_PRIORITY, &result2, |
| 252 callback2.callback(), &request_handle2, |
| 253 BoundNetLog())); |
| 254 EXPECT_EQ(OK, callback1.GetResult(ERR_IO_PENDING)); |
| 255 EXPECT_EQ(ERR_NAME_NOT_RESOLVED, callback2.GetResult(ERR_IO_PENDING)); |
| 256 ASSERT_EQ(1u, result1.size()); |
| 257 EXPECT_EQ(address_list[0], result1[0]); |
| 258 ASSERT_EQ(0u, result2.size()); |
| 259 |
| 260 ASSERT_EQ(2u, mock_resolver_->requests().size()); |
| 261 interfaces::HostResolverRequestInfo& request1 = |
| 262 *mock_resolver_->requests()[0]; |
| 263 EXPECT_EQ("example.com", request1.host.To<std::string>()); |
| 264 EXPECT_EQ(12345, request1.port); |
| 265 EXPECT_EQ(interfaces::ADDRESS_FAMILY_IPV4, request1.address_family); |
| 266 EXPECT_TRUE(request1.is_my_ip_address); |
| 267 interfaces::HostResolverRequestInfo& request2 = |
| 268 *mock_resolver_->requests()[1]; |
| 269 EXPECT_EQ("example.org", request2.host.To<std::string>()); |
| 270 EXPECT_EQ(80, request2.port); |
| 271 EXPECT_EQ(interfaces::ADDRESS_FAMILY_IPV6, request2.address_family); |
| 272 EXPECT_FALSE(request2.is_my_ip_address); |
| 273 } |
| 274 |
| 275 TEST_F(HostResolverMojoTest, Error) { |
| 276 mock_resolver_->AddAction( |
| 277 HostResolverAction::ReturnError(ERR_NAME_NOT_RESOLVED)); |
| 278 HostResolver::RequestInfo request_info( |
| 279 HostPortPair::FromString("example.com:8080")); |
| 280 request_info.set_address_family(ADDRESS_FAMILY_IPV4); |
| 281 AddressList result; |
| 282 EXPECT_EQ(ERR_NAME_NOT_RESOLVED, Resolve(request_info, &result)); |
| 283 EXPECT_TRUE(result.empty()); |
| 284 |
| 285 ASSERT_EQ(1u, mock_resolver_->requests().size()); |
| 286 interfaces::HostResolverRequestInfo& request = *mock_resolver_->requests()[0]; |
| 287 EXPECT_EQ("example.com", request.host.To<std::string>()); |
| 288 EXPECT_EQ(8080, request.port); |
| 289 EXPECT_EQ(interfaces::ADDRESS_FAMILY_IPV4, request.address_family); |
| 290 EXPECT_FALSE(request.is_my_ip_address); |
| 291 } |
| 292 |
| 293 TEST_F(HostResolverMojoTest, EmptyResult) { |
| 294 mock_resolver_->AddAction(HostResolverAction::ReturnError(OK)); |
| 295 HostResolver::RequestInfo request_info( |
| 296 HostPortPair::FromString("example.com:8080")); |
| 297 AddressList result; |
| 298 EXPECT_EQ(OK, Resolve(request_info, &result)); |
| 299 EXPECT_TRUE(result.empty()); |
| 300 |
| 301 ASSERT_EQ(1u, mock_resolver_->requests().size()); |
| 302 } |
| 303 |
| 304 TEST_F(HostResolverMojoTest, Cancel) { |
| 305 mock_resolver_->AddAction(HostResolverAction::RetainRequest()); |
| 306 HostResolver::RequestInfo request_info( |
| 307 HostPortPair::FromString("example.com:80")); |
| 308 request_info.set_address_family(ADDRESS_FAMILY_IPV6); |
| 309 AddressList result; |
| 310 HostResolver::RequestHandle request_handle = nullptr; |
| 311 resolver_->Resolve(request_info, DEFAULT_PRIORITY, &result, base::Bind(&Fail), |
| 312 &request_handle, BoundNetLog()); |
| 313 resolver_->CancelRequest(request_handle); |
| 314 waiter_.WaitForEvent(ConnectionErrorSource::REQUEST); |
| 315 EXPECT_TRUE(result.empty()); |
| 316 |
| 317 ASSERT_EQ(1u, mock_resolver_->requests().size()); |
| 318 interfaces::HostResolverRequestInfo& request = *mock_resolver_->requests()[0]; |
| 319 EXPECT_EQ("example.com", request.host.To<std::string>()); |
| 320 EXPECT_EQ(80, request.port); |
| 321 EXPECT_EQ(interfaces::ADDRESS_FAMILY_IPV6, request.address_family); |
| 322 EXPECT_FALSE(request.is_my_ip_address); |
| 323 } |
| 324 |
| 325 TEST_F(HostResolverMojoTest, ImplDropsClientConnection) { |
| 326 mock_resolver_->AddAction(HostResolverAction::DropRequest()); |
| 327 HostResolver::RequestInfo request_info( |
| 328 HostPortPair::FromString("example.com:1")); |
| 329 AddressList result; |
| 330 EXPECT_EQ(ERR_FAILED, Resolve(request_info, &result)); |
| 331 EXPECT_TRUE(result.empty()); |
| 332 |
| 333 ASSERT_EQ(1u, mock_resolver_->requests().size()); |
| 334 interfaces::HostResolverRequestInfo& request = *mock_resolver_->requests()[0]; |
| 335 EXPECT_EQ("example.com", request.host.To<std::string>()); |
| 336 EXPECT_EQ(1, request.port); |
| 337 EXPECT_EQ(interfaces::ADDRESS_FAMILY_UNSPECIFIED, request.address_family); |
| 338 EXPECT_FALSE(request.is_my_ip_address); |
| 339 } |
| 340 |
| 341 TEST_F(HostResolverMojoTest, DestroyImpl) { |
| 342 mock_resolver_.reset(); |
| 343 waiter_.WaitForEvent(ConnectionErrorSource::CLIENT); |
| 344 } |
| 345 |
| 346 TEST_F(HostResolverMojoTest, DestroyClient) { |
| 347 resolver_.reset(); |
| 348 waiter_.WaitForEvent(ConnectionErrorSource::RESOLVER); |
| 349 } |
| 350 |
| 351 TEST_F(HostResolverMojoTest, ResolveFromCache) { |
| 352 HostResolver::RequestInfo request_info( |
| 353 HostPortPair::FromString("example.com:8080")); |
| 354 AddressList result; |
| 355 EXPECT_EQ(ERR_DNS_CACHE_MISS, |
| 356 resolver_->ResolveFromCache(request_info, &result, BoundNetLog())); |
| 357 EXPECT_TRUE(result.empty()); |
| 358 } |
| 359 |
| 360 } // namespace net |
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