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| 1 // Copyright 2016 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 "components/certificate_transparency/log_dns_client.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <numeric> | |
| 9 #include <utility> | |
| 10 #include <vector> | |
| 11 | |
| 12 #include "base/big_endian.h" | |
| 13 #include "base/macros.h" | |
| 14 #include "base/message_loop/message_loop.h" | |
| 15 #include "base/run_loop.h" | |
| 16 #include "base/sys_byteorder.h" | |
| 17 #include "base/test/test_timeouts.h" | |
| 18 #include "crypto/sha2.h" | |
| 19 #include "net/base/net_errors.h" | |
| 20 #include "net/cert/merkle_audit_proof.h" | |
| 21 #include "net/cert/merkle_tree_leaf.h" | |
| 22 #include "net/cert/signed_certificate_timestamp.h" | |
| 23 #include "net/dns/dns_client.h" | |
| 24 #include "net/dns/dns_config_service.h" | |
| 25 #include "net/dns/dns_protocol.h" | |
| 26 #include "net/log/net_log.h" | |
| 27 #include "net/socket/socket_test_util.h" | |
| 28 #include "net/test/gtest_util.h" | |
| 29 #include "testing/gmock/include/gmock/gmock.h" | |
| 30 #include "testing/gtest/include/gtest/gtest.h" | |
| 31 | |
| 32 namespace certificate_transparency { | |
| 33 namespace { | |
| 34 | |
| 35 using ::testing::IsNull; | |
| 36 using ::testing::NotNull; | |
| 37 using net::test::IsError; | |
| 38 using net::test::IsOk; | |
| 39 | |
| 40 constexpr char kLeafHash[] = | |
| 41 "\x1f\x25\xe1\xca\xba\x4f\xf9\xb8\x27\x24\x83\x0f\xca\x60\xe4\xc2\xbe\xa8" | |
| 42 "\xc3\xa9\x44\x1c\x27\xb0\xb4\x3e\x6a\x96\x94\xc7\xb8\x04"; | |
| 43 | |
| 44 // Always return min, to simplify testing. | |
| 45 // This should result in the DNS query ID always being 0. | |
| 46 int FakeRandInt(int min, int max) { | |
| 47 return min; | |
| 48 } | |
| 49 | |
| 50 std::vector<char> CreateDnsTxtRequest(base::StringPiece qname) { | |
| 51 std::string encoded_qname; | |
| 52 EXPECT_TRUE(net::DNSDomainFromDot(qname, &encoded_qname)); | |
| 53 | |
| 54 const size_t query_section_size = encoded_qname.size() + 4; | |
| 55 | |
| 56 std::vector<char> request(sizeof(net::dns_protocol::Header) + | |
| 57 query_section_size); | |
| 58 base::BigEndianWriter writer(request.data(), request.size()); | |
| 59 | |
| 60 // Header | |
| 61 net::dns_protocol::Header header = {}; | |
| 62 header.flags = base::HostToNet16(net::dns_protocol::kFlagRD); | |
| 63 header.qdcount = base::HostToNet16(1); | |
| 64 EXPECT_TRUE(writer.WriteBytes(&header, sizeof(header))); | |
| 65 // Query section | |
| 66 EXPECT_TRUE(writer.WriteBytes(encoded_qname.data(), encoded_qname.size())); | |
| 67 EXPECT_TRUE(writer.WriteU16(net::dns_protocol::kTypeTXT)); | |
| 68 EXPECT_TRUE(writer.WriteU16(net::dns_protocol::kClassIN)); | |
| 69 EXPECT_EQ(0, writer.remaining()); | |
| 70 | |
| 71 return request; | |
| 72 } | |
| 73 | |
| 74 std::vector<char> CreateDnsTxtResponse(const std::vector<char>& request, | |
| 75 base::StringPiece answer) { | |
| 76 const size_t answers_section_size = 12 + answer.size(); | |
| 77 constexpr uint32_t ttl = 86400; // seconds | |
| 78 | |
| 79 std::vector<char> response(request.size() + answers_section_size); | |
| 80 std::copy(request.begin(), request.end(), response.begin()); | |
| 81 // Modify the header | |
| 82 net::dns_protocol::Header* header = | |
| 83 reinterpret_cast<net::dns_protocol::Header*>(response.data()); | |
| 84 header->ancount = base::HostToNet16(1); | |
| 85 header->flags |= base::HostToNet16(net::dns_protocol::kFlagResponse); | |
| 86 | |
| 87 // Write the answer section | |
| 88 base::BigEndianWriter writer(response.data() + request.size(), | |
| 89 response.size() - request.size()); | |
| 90 EXPECT_TRUE(writer.WriteU8(0xc0)); // qname is a pointer | |
| 91 EXPECT_TRUE(writer.WriteU8( | |
| 92 sizeof(*header))); // address of qname (start of query section) | |
| 93 EXPECT_TRUE(writer.WriteU16(net::dns_protocol::kTypeTXT)); | |
| 94 EXPECT_TRUE(writer.WriteU16(net::dns_protocol::kClassIN)); | |
| 95 EXPECT_TRUE(writer.WriteU32(ttl)); | |
| 96 EXPECT_TRUE(writer.WriteU16(answer.size())); | |
| 97 EXPECT_TRUE(writer.WriteBytes(answer.data(), answer.size())); | |
| 98 EXPECT_EQ(0, writer.remaining()); | |
| 99 | |
| 100 return response; | |
| 101 } | |
| 102 | |
| 103 std::vector<char> CreateDnsErrorResponse(const std::vector<char>& request, | |
| 104 uint8_t rcode) { | |
| 105 std::vector<char> response(request); | |
| 106 // Modify the header | |
| 107 net::dns_protocol::Header* header = | |
| 108 reinterpret_cast<net::dns_protocol::Header*>(response.data()); | |
| 109 header->ancount = base::HostToNet16(1); | |
| 110 header->flags |= base::HostToNet16(net::dns_protocol::kFlagResponse | rcode); | |
| 111 | |
| 112 return response; | |
| 113 } | |
| 114 | |
| 115 std::vector<std::string> GetSampleAuditProof(size_t length) { | |
| 116 std::vector<std::string> audit_proof(length); | |
| 117 // Makes each node of the audit proof different, so that tests are able to | |
| 118 // confirm that the audit proof is reconstructed in the correct order. | |
| 119 for (size_t i = 0; i < length; ++i) { | |
| 120 std::string node(crypto::kSHA256Length, '\0'); | |
| 121 // Each node is 32 bytes, with each byte having a different value. | |
| 122 for (size_t j = 0; j < crypto::kSHA256Length; ++j) { | |
| 123 node[j] = static_cast<char>((-127 + i + j) % 128); | |
| 124 } | |
| 125 audit_proof[i].assign(std::move(node)); | |
| 126 } | |
| 127 | |
| 128 return audit_proof; | |
| 129 } | |
| 130 | |
| 131 class MockLeafIndexCallback { | |
| 132 public: | |
| 133 MockLeafIndexCallback() : called_(false) {} | |
| 134 | |
| 135 bool called() const { return called_; } | |
| 136 int net_error() const { return net_error_; } | |
| 137 uint64_t leaf_index() const { return leaf_index_; } | |
| 138 | |
| 139 void Run(int net_error, uint64_t leaf_index) { | |
| 140 EXPECT_TRUE(!called_); | |
| 141 called_ = true; | |
| 142 net_error_ = net_error; | |
| 143 leaf_index_ = leaf_index; | |
| 144 run_loop_.Quit(); | |
| 145 } | |
| 146 | |
| 147 LogDnsClient::LeafIndexCallback AsCallback() { | |
| 148 return base::Bind(&MockLeafIndexCallback::Run, base::Unretained(this)); | |
| 149 } | |
| 150 | |
| 151 void WaitUntilRun() { run_loop_.Run(); } | |
| 152 | |
| 153 private: | |
| 154 bool called_; | |
| 155 int net_error_; | |
| 156 uint64_t leaf_index_; | |
| 157 base::RunLoop run_loop_; | |
| 158 }; | |
| 159 | |
| 160 class MockAuditProofCallback { | |
| 161 public: | |
| 162 MockAuditProofCallback() : called_(false) {} | |
| 163 | |
| 164 bool called() const { return called_; } | |
| 165 int net_error() const { return net_error_; } | |
| 166 const net::ct::MerkleAuditProof* proof() const { return proof_.get(); } | |
| 167 | |
| 168 void Run(int net_error, std::unique_ptr<net::ct::MerkleAuditProof> proof) { | |
| 169 EXPECT_TRUE(!called_); | |
| 170 called_ = true; | |
| 171 net_error_ = net_error; | |
| 172 proof_ = std::move(proof); | |
| 173 run_loop_.Quit(); | |
| 174 } | |
| 175 | |
| 176 LogDnsClient::AuditProofCallback AsCallback() { | |
| 177 return base::Bind(&MockAuditProofCallback::Run, base::Unretained(this)); | |
| 178 } | |
| 179 | |
| 180 void WaitUntilRun() { run_loop_.Run(); } | |
| 181 | |
| 182 private: | |
| 183 bool called_; | |
| 184 int net_error_; | |
| 185 std::unique_ptr<net::ct::MerkleAuditProof> proof_; | |
| 186 base::RunLoop run_loop_; | |
| 187 }; | |
| 188 | |
| 189 // A container for all of the data we need to keep alive for a mock socket. | |
| 190 // This is useful because Mock{Read,Write}, SequencedSocketData and | |
| 191 // MockClientSocketFactory all do not take ownership of or copy their arguments, | |
| 192 // so we have to manage the lifetime of those arguments ourselves. Wrapping all | |
| 193 // of that up in a single class simplifies this. | |
| 194 class MockSocketData { | |
| 195 public: | |
| 196 // A socket that expects one write and one read operation. | |
| 197 MockSocketData(const std::vector<char>& write, const std::vector<char>& read) | |
| 198 : expected_write_payload_(write), | |
| 199 expected_read_payload_(read), | |
| 200 expected_write_(net::SYNCHRONOUS, | |
| 201 expected_write_payload_.data(), | |
| 202 expected_write_payload_.size(), | |
| 203 0), | |
| 204 expected_reads_{net::MockRead(net::ASYNC, | |
| 205 expected_read_payload_.data(), | |
| 206 expected_read_payload_.size(), | |
| 207 1), | |
| 208 eof_}, | |
| 209 socket_data_(expected_reads_, 2, &expected_write_, 1) {} | |
| 210 | |
| 211 // A socket that expects one write and a read error. | |
| 212 MockSocketData(const std::vector<char>& write, int net_error) | |
| 213 : expected_write_payload_(write), | |
| 214 expected_write_(net::SYNCHRONOUS, | |
| 215 expected_write_payload_.data(), | |
| 216 expected_write_payload_.size(), | |
| 217 0), | |
| 218 expected_reads_{net::MockRead(net::ASYNC, net_error, 1), eof_}, | |
| 219 socket_data_(expected_reads_, 2, &expected_write_, 1) {} | |
| 220 | |
| 221 // A socket that expects one write and no response. | |
| 222 MockSocketData(const std::vector<char>& write) | |
| 223 : expected_write_payload_(write), | |
| 224 expected_write_(net::SYNCHRONOUS, | |
| 225 expected_write_payload_.data(), | |
| 226 expected_write_payload_.size(), | |
| 227 0), | |
| 228 expected_reads_{net::MockRead(net::SYNCHRONOUS, net::ERR_IO_PENDING, 1), | |
| 229 eof_}, | |
| 230 socket_data_(expected_reads_, 2, &expected_write_, 1) {} | |
| 231 | |
| 232 void SetWriteMode(net::IoMode mode) { expected_write_.mode = mode; } | |
| 233 void SetReadMode(net::IoMode mode) { expected_reads_[0].mode = mode; } | |
| 234 | |
| 235 void AddToFactory(net::MockClientSocketFactory* socket_factory) { | |
| 236 socket_factory->AddSocketDataProvider(&socket_data_); | |
| 237 } | |
| 238 | |
| 239 private: | |
| 240 // Prevents read overruns and makes a socket timeout the default behaviour. | |
| 241 static const net::MockRead eof_; | |
| 242 | |
| 243 const std::vector<char> expected_write_payload_; | |
| 244 const std::vector<char> expected_read_payload_; | |
| 245 // Encapsulates the data that is expected to be written to a socket. | |
| 246 net::MockWrite expected_write_; | |
| 247 // Encapsulates the data/error that should be returned when reading from a | |
| 248 // socket. The expected response is followed by |eof_|, to catch further, | |
| 249 // unexpected read attempts. | |
| 250 net::MockRead expected_reads_[2]; | |
| 251 net::SequencedSocketData socket_data_; | |
| 252 | |
| 253 DISALLOW_COPY_AND_ASSIGN(MockSocketData); | |
| 254 }; | |
| 255 | |
| 256 const net::MockRead MockSocketData::eof_(net::SYNCHRONOUS, | |
| 257 net::ERR_IO_PENDING, | |
| 258 2); | |
| 259 | |
| 260 class LogDnsClientTest : public ::testing::TestWithParam<net::IoMode> { | |
| 261 protected: | |
| 262 LogDnsClientTest() { | |
| 263 // Use an invalid nameserver address. This prevents the tests accidentally | |
| 264 // sending real DNS queries. The mock sockets don't care that the address | |
| 265 // is invalid. | |
| 266 dns_config_.nameservers.push_back(net::IPEndPoint()); | |
| 267 // Don't attempt retransmissions - just fail. | |
| 268 dns_config_.attempts = 1; | |
| 269 // This ensures timeouts are long enough for memory tests. | |
| 270 dns_config_.timeout = TestTimeouts::action_timeout(); | |
| 271 // Simplify testing - don't require random numbers for the source port. | |
| 272 // This means our FakeRandInt function should only be called to get query | |
| 273 // IDs. | |
| 274 dns_config_.randomize_ports = false; | |
| 275 } | |
| 276 | |
| 277 void ExpectRequestAndErrorResponse(base::StringPiece qname, uint8_t rcode) { | |
| 278 std::vector<char> request = CreateDnsTxtRequest(qname); | |
| 279 std::vector<char> response = CreateDnsErrorResponse(request, rcode); | |
| 280 | |
| 281 mock_socket_data_.emplace_back(new MockSocketData(request, response)); | |
| 282 mock_socket_data_.back()->SetReadMode(GetParam()); | |
| 283 mock_socket_data_.back()->AddToFactory(&socket_factory_); | |
| 284 } | |
| 285 | |
| 286 void ExpectRequestAndSocketError(base::StringPiece qname, int net_error) { | |
| 287 std::vector<char> request = CreateDnsTxtRequest(qname); | |
| 288 | |
| 289 mock_socket_data_.emplace_back(new MockSocketData(request, net_error)); | |
| 290 mock_socket_data_.back()->SetReadMode(GetParam()); | |
| 291 mock_socket_data_.back()->AddToFactory(&socket_factory_); | |
| 292 } | |
| 293 | |
| 294 void ExpectRequestAndTimeout(base::StringPiece qname) { | |
| 295 std::vector<char> request = CreateDnsTxtRequest(qname); | |
| 296 | |
| 297 mock_socket_data_.emplace_back(new MockSocketData(request)); | |
| 298 mock_socket_data_.back()->SetReadMode(GetParam()); | |
| 299 mock_socket_data_.back()->AddToFactory(&socket_factory_); | |
| 300 | |
| 301 // Speed up timeout tests. | |
| 302 dns_config_.timeout = TestTimeouts::tiny_timeout(); | |
| 303 } | |
| 304 | |
| 305 void ExpectLeafIndexRequestAndResponse(base::StringPiece qname, | |
| 306 base::StringPiece leaf_index) { | |
| 307 // Prepend size to leaf_index to create the query answer (rdata) | |
| 308 ASSERT_LE(leaf_index.size(), 0xFFul); // size must fit into a single byte | |
| 309 std::string answer = leaf_index.as_string(); | |
| 310 answer.insert(answer.begin(), static_cast<char>(leaf_index.size())); | |
| 311 | |
| 312 ExpectRequestAndResponse(qname, answer); | |
| 313 } | |
| 314 | |
| 315 void ExpectAuditProofRequestAndResponse( | |
| 316 base::StringPiece qname, | |
| 317 std::vector<std::string>::const_iterator audit_path_start, | |
| 318 std::vector<std::string>::const_iterator audit_path_end) { | |
| 319 // Join nodes in the audit path into a single string. | |
| 320 std::string proof = | |
| 321 std::accumulate(audit_path_start, audit_path_end, std::string()); | |
| 322 | |
| 323 // Prepend size to proof to create the query answer (rdata) | |
| 324 ASSERT_LE(proof.size(), 0xFFul); // size must fit into a single byte | |
| 325 proof.insert(proof.begin(), static_cast<char>(proof.size())); | |
| 326 | |
| 327 ExpectRequestAndResponse(qname, proof); | |
| 328 } | |
| 329 | |
| 330 void QueryLeafIndex(base::StringPiece log_domain, | |
| 331 base::StringPiece leaf_hash, | |
| 332 MockLeafIndexCallback* callback) { | |
| 333 std::unique_ptr<net::DnsClient> dns_client = CreateDnsClient(); | |
| 334 LogDnsClient log_client(std::move(dns_client), net::BoundNetLog()); | |
| 335 | |
| 336 log_client.QueryLeafIndex(log_domain, leaf_hash, callback->AsCallback()); | |
| 337 callback->WaitUntilRun(); | |
| 338 } | |
| 339 | |
| 340 void QueryAuditProof(base::StringPiece log_domain, | |
| 341 uint64_t leaf_index, | |
| 342 uint64_t tree_size, | |
| 343 MockAuditProofCallback* callback) { | |
| 344 std::unique_ptr<net::DnsClient> dns_client = CreateDnsClient(); | |
| 345 LogDnsClient log_client(std::move(dns_client), net::BoundNetLog()); | |
| 346 | |
| 347 log_client.QueryAuditProof(log_domain, leaf_index, tree_size, | |
| 348 callback->AsCallback()); | |
| 349 callback->WaitUntilRun(); | |
| 350 } | |
| 351 | |
| 352 private: | |
| 353 std::unique_ptr<net::DnsClient> CreateDnsClient() { | |
| 354 std::unique_ptr<net::DnsClient> client = | |
| 355 net::DnsClient::CreateClientForTesting(nullptr, &socket_factory_, | |
| 356 base::Bind(&FakeRandInt)); | |
| 357 client->SetConfig(dns_config_); | |
| 358 return client; | |
| 359 } | |
| 360 | |
| 361 void ExpectRequestAndResponse(base::StringPiece qname, | |
| 362 base::StringPiece answer) { | |
| 363 std::vector<char> request = CreateDnsTxtRequest(qname); | |
| 364 std::vector<char> response = CreateDnsTxtResponse(request, answer); | |
| 365 | |
| 366 mock_socket_data_.emplace_back(new MockSocketData(request, response)); | |
| 367 mock_socket_data_.back()->SetReadMode(GetParam()); | |
| 368 mock_socket_data_.back()->AddToFactory(&socket_factory_); | |
| 369 } | |
| 370 | |
| 371 net::DnsConfig dns_config_; | |
| 372 base::MessageLoopForIO message_loop_; | |
| 373 std::vector<std::unique_ptr<MockSocketData>> mock_socket_data_; | |
| 374 net::MockClientSocketFactory socket_factory_; | |
| 375 }; | |
| 376 | |
| 377 TEST_P(LogDnsClientTest, QueryLeafIndex) { | |
| 378 ExpectLeafIndexRequestAndResponse( | |
| 379 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test.", | |
| 380 "123456"); | |
| 381 | |
| 382 MockLeafIndexCallback callback; | |
| 383 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 384 ASSERT_TRUE(callback.called()); | |
| 385 EXPECT_THAT(callback.net_error(), IsOk()); | |
| 386 EXPECT_THAT(callback.leaf_index(), 123456); | |
| 387 } | |
| 388 | |
| 389 TEST_P(LogDnsClientTest, QueryLeafIndexReportsThatLogDomainDoesNotExist) { | |
| 390 ExpectRequestAndErrorResponse( | |
| 391 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test.", | |
| 392 net::dns_protocol::kRcodeNXDOMAIN); | |
| 393 | |
| 394 MockLeafIndexCallback callback; | |
| 395 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 396 ASSERT_TRUE(callback.called()); | |
| 397 EXPECT_THAT(callback.net_error(), IsError(net::ERR_NAME_NOT_RESOLVED)); | |
| 398 EXPECT_THAT(callback.leaf_index(), 0); | |
| 399 } | |
| 400 | |
| 401 TEST_P(LogDnsClientTest, QueryLeafIndexReportsServerFailure) { | |
| 402 ExpectRequestAndErrorResponse( | |
| 403 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test.", | |
| 404 net::dns_protocol::kRcodeSERVFAIL); | |
| 405 | |
| 406 MockLeafIndexCallback callback; | |
| 407 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 408 ASSERT_TRUE(callback.called()); | |
| 409 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_SERVER_FAILED)); | |
| 410 EXPECT_THAT(callback.leaf_index(), 0); | |
| 411 } | |
| 412 | |
| 413 TEST_P(LogDnsClientTest, QueryLeafIndexReportsServerRefusal) { | |
| 414 ExpectRequestAndErrorResponse( | |
| 415 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test.", | |
| 416 net::dns_protocol::kRcodeREFUSED); | |
| 417 | |
| 418 MockLeafIndexCallback callback; | |
| 419 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 420 ASSERT_TRUE(callback.called()); | |
| 421 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_SERVER_FAILED)); | |
| 422 EXPECT_THAT(callback.leaf_index(), 0); | |
| 423 } | |
| 424 | |
| 425 TEST_P(LogDnsClientTest, | |
| 426 QueryLeafIndexReportsMalformedResponseIfLeafIndexIsNotNumeric) { | |
| 427 ExpectLeafIndexRequestAndResponse( | |
| 428 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test.", | |
| 429 "foo"); | |
| 430 | |
| 431 MockLeafIndexCallback callback; | |
| 432 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 433 ASSERT_TRUE(callback.called()); | |
| 434 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_MALFORMED_RESPONSE)); | |
| 435 EXPECT_THAT(callback.leaf_index(), 0); | |
| 436 } | |
| 437 | |
| 438 TEST_P(LogDnsClientTest, | |
| 439 QueryLeafIndexReportsMalformedResponseIfLeafIndexIsFloatingPoint) { | |
| 440 ExpectLeafIndexRequestAndResponse( | |
| 441 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test.", | |
| 442 "123456.0"); | |
| 443 | |
| 444 MockLeafIndexCallback callback; | |
| 445 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 446 ASSERT_TRUE(callback.called()); | |
| 447 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_MALFORMED_RESPONSE)); | |
| 448 EXPECT_THAT(callback.leaf_index(), 0); | |
| 449 } | |
| 450 | |
| 451 TEST_P(LogDnsClientTest, | |
| 452 QueryLeafIndexReportsMalformedResponseIfLeafIndexIsEmpty) { | |
| 453 ExpectLeafIndexRequestAndResponse( | |
| 454 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test.", ""); | |
| 455 | |
| 456 MockLeafIndexCallback callback; | |
| 457 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 458 ASSERT_TRUE(callback.called()); | |
| 459 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_MALFORMED_RESPONSE)); | |
| 460 EXPECT_THAT(callback.leaf_index(), 0); | |
| 461 } | |
| 462 | |
| 463 TEST_P(LogDnsClientTest, | |
| 464 QueryLeafIndexReportsMalformedResponseIfLeafIndexHasNonNumericPrefix) { | |
| 465 ExpectLeafIndexRequestAndResponse( | |
| 466 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test.", | |
| 467 "foo123456"); | |
| 468 | |
| 469 MockLeafIndexCallback callback; | |
| 470 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 471 ASSERT_TRUE(callback.called()); | |
| 472 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_MALFORMED_RESPONSE)); | |
| 473 EXPECT_THAT(callback.leaf_index(), 0); | |
| 474 } | |
| 475 | |
| 476 TEST_P(LogDnsClientTest, | |
| 477 QueryLeafIndexReportsMalformedResponseIfLeafIndexHasNonNumericSuffix) { | |
| 478 ExpectLeafIndexRequestAndResponse( | |
| 479 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test.", | |
| 480 "123456foo"); | |
| 481 | |
| 482 MockLeafIndexCallback callback; | |
| 483 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 484 ASSERT_TRUE(callback.called()); | |
| 485 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_MALFORMED_RESPONSE)); | |
| 486 EXPECT_THAT(callback.leaf_index(), 0); | |
| 487 } | |
| 488 | |
| 489 TEST_P(LogDnsClientTest, QueryLeafIndexReportsInvalidArgIfLogDomainIsEmpty) { | |
| 490 MockLeafIndexCallback callback; | |
| 491 QueryLeafIndex("", kLeafHash, &callback); | |
| 492 ASSERT_TRUE(callback.called()); | |
| 493 EXPECT_THAT(callback.net_error(), IsError(net::ERR_INVALID_ARGUMENT)); | |
| 494 EXPECT_THAT(callback.leaf_index(), 0); | |
| 495 } | |
| 496 | |
| 497 TEST_P(LogDnsClientTest, QueryLeafIndexReportsInvalidArgIfLogDomainIsNull) { | |
| 498 MockLeafIndexCallback callback; | |
| 499 QueryLeafIndex(nullptr, kLeafHash, &callback); | |
| 500 ASSERT_TRUE(callback.called()); | |
| 501 EXPECT_THAT(callback.net_error(), IsError(net::ERR_INVALID_ARGUMENT)); | |
| 502 EXPECT_THAT(callback.leaf_index(), 0); | |
| 503 } | |
| 504 | |
| 505 TEST_P(LogDnsClientTest, QueryLeafIndexReportsInvalidArgIfLeafHashIsInvalid) { | |
| 506 MockLeafIndexCallback callback; | |
| 507 QueryLeafIndex("ct.test", "foo", &callback); | |
| 508 ASSERT_TRUE(callback.called()); | |
| 509 EXPECT_THAT(callback.net_error(), IsError(net::ERR_INVALID_ARGUMENT)); | |
| 510 EXPECT_THAT(callback.leaf_index(), 0); | |
| 511 } | |
| 512 | |
| 513 TEST_P(LogDnsClientTest, QueryLeafIndexReportsInvalidArgIfLeafHashIsEmpty) { | |
| 514 MockLeafIndexCallback callback; | |
| 515 QueryLeafIndex("ct.test", "", &callback); | |
| 516 ASSERT_TRUE(callback.called()); | |
| 517 EXPECT_THAT(callback.net_error(), IsError(net::ERR_INVALID_ARGUMENT)); | |
| 518 EXPECT_THAT(callback.leaf_index(), 0); | |
| 519 } | |
| 520 | |
| 521 TEST_P(LogDnsClientTest, QueryLeafIndexReportsInvalidArgIfLeafHashIsNull) { | |
| 522 MockLeafIndexCallback callback; | |
| 523 QueryLeafIndex("ct.test", nullptr, &callback); | |
| 524 ASSERT_TRUE(callback.called()); | |
| 525 EXPECT_THAT(callback.net_error(), IsError(net::ERR_INVALID_ARGUMENT)); | |
| 526 EXPECT_THAT(callback.leaf_index(), 0); | |
| 527 } | |
| 528 | |
| 529 TEST_P(LogDnsClientTest, QueryLeafIndexReportsSocketError) { | |
| 530 ExpectRequestAndSocketError( | |
| 531 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test.", | |
| 532 net::ERR_CONNECTION_REFUSED); | |
| 533 | |
| 534 MockLeafIndexCallback callback; | |
| 535 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 536 ASSERT_TRUE(callback.called()); | |
| 537 EXPECT_THAT(callback.net_error(), IsError(net::ERR_CONNECTION_REFUSED)); | |
| 538 EXPECT_THAT(callback.leaf_index(), 0); | |
| 539 } | |
| 540 | |
| 541 TEST_P(LogDnsClientTest, QueryLeafIndexReportsTimeout) { | |
| 542 ExpectRequestAndTimeout( | |
| 543 "D4S6DSV2J743QJZEQMH4UYHEYK7KRQ5JIQOCPMFUHZVJNFGHXACA.hash.ct.test."); | |
| 544 | |
| 545 MockLeafIndexCallback callback; | |
| 546 QueryLeafIndex("ct.test", kLeafHash, &callback); | |
| 547 ASSERT_TRUE(callback.called()); | |
| 548 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_TIMED_OUT)); | |
| 549 EXPECT_THAT(callback.leaf_index(), 0); | |
| 550 } | |
| 551 | |
| 552 TEST_P(LogDnsClientTest, QueryAuditProof) { | |
| 553 const std::vector<std::string> audit_proof = GetSampleAuditProof(20); | |
| 554 | |
| 555 // It should require 3 queries to collect the entire audit proof, as there is | |
| 556 // only space for 7 nodes per UDP packet. | |
| 557 ExpectAuditProofRequestAndResponse("0.123456.999999.tree.ct.test.", | |
| 558 audit_proof.begin(), | |
| 559 audit_proof.begin() + 7); | |
| 560 ExpectAuditProofRequestAndResponse("7.123456.999999.tree.ct.test.", | |
| 561 audit_proof.begin() + 7, | |
| 562 audit_proof.begin() + 14); | |
| 563 ExpectAuditProofRequestAndResponse("14.123456.999999.tree.ct.test.", | |
| 564 audit_proof.begin() + 14, | |
| 565 audit_proof.end()); | |
| 566 | |
| 567 MockAuditProofCallback callback; | |
| 568 QueryAuditProof("ct.test", 123456, 999999, &callback); | |
| 569 ASSERT_TRUE(callback.called()); | |
| 570 EXPECT_THAT(callback.net_error(), IsOk()); | |
| 571 ASSERT_THAT(callback.proof(), NotNull()); | |
| 572 EXPECT_THAT(callback.proof()->leaf_index, 123456); | |
| 573 // EXPECT_THAT(callback.proof()->tree_size, 999999); | |
| 574 EXPECT_THAT(callback.proof()->nodes, audit_proof); | |
| 575 } | |
| 576 | |
| 577 TEST_P(LogDnsClientTest, QueryAuditProofHandlesResponsesWithShortAuditPaths) { | |
| 578 const std::vector<std::string> audit_proof = GetSampleAuditProof(20); | |
| 579 | |
| 580 // Make some of the responses contain fewer proof nodes than they can hold. | |
| 581 ExpectAuditProofRequestAndResponse("0.123456.999999.tree.ct.test.", | |
| 582 audit_proof.begin(), | |
| 583 audit_proof.begin() + 1); | |
| 584 ExpectAuditProofRequestAndResponse("1.123456.999999.tree.ct.test.", | |
| 585 audit_proof.begin() + 1, | |
| 586 audit_proof.begin() + 3); | |
| 587 ExpectAuditProofRequestAndResponse("3.123456.999999.tree.ct.test.", | |
| 588 audit_proof.begin() + 3, | |
| 589 audit_proof.begin() + 6); | |
| 590 ExpectAuditProofRequestAndResponse("6.123456.999999.tree.ct.test.", | |
| 591 audit_proof.begin() + 6, | |
| 592 audit_proof.begin() + 10); | |
| 593 ExpectAuditProofRequestAndResponse("10.123456.999999.tree.ct.test.", | |
| 594 audit_proof.begin() + 10, | |
| 595 audit_proof.begin() + 13); | |
| 596 ExpectAuditProofRequestAndResponse("13.123456.999999.tree.ct.test.", | |
| 597 audit_proof.begin() + 13, | |
| 598 audit_proof.end()); | |
| 599 | |
| 600 MockAuditProofCallback callback; | |
| 601 QueryAuditProof("ct.test", 123456, 999999, &callback); | |
| 602 ASSERT_TRUE(callback.called()); | |
| 603 EXPECT_THAT(callback.net_error(), IsOk()); | |
| 604 ASSERT_THAT(callback.proof(), NotNull()); | |
| 605 EXPECT_THAT(callback.proof()->leaf_index, 123456); | |
| 606 // EXPECT_THAT(callback.proof()->tree_size, 999999); | |
| 607 EXPECT_THAT(callback.proof()->nodes, audit_proof); | |
| 608 } | |
| 609 | |
| 610 TEST_P(LogDnsClientTest, QueryAuditProofReportsThatLogDomainDoesNotExist) { | |
| 611 ExpectRequestAndErrorResponse("0.123456.999999.tree.ct.test.", | |
| 612 net::dns_protocol::kRcodeNXDOMAIN); | |
| 613 | |
| 614 MockAuditProofCallback callback; | |
| 615 QueryAuditProof("ct.test", 123456, 999999, &callback); | |
| 616 ASSERT_TRUE(callback.called()); | |
| 617 EXPECT_THAT(callback.net_error(), IsError(net::ERR_NAME_NOT_RESOLVED)); | |
| 618 EXPECT_THAT(callback.proof(), IsNull()); | |
| 619 } | |
| 620 | |
| 621 TEST_P(LogDnsClientTest, QueryAuditProofReportsServerFailure) { | |
| 622 ExpectRequestAndErrorResponse("0.123456.999999.tree.ct.test.", | |
| 623 net::dns_protocol::kRcodeSERVFAIL); | |
| 624 | |
| 625 MockAuditProofCallback callback; | |
| 626 QueryAuditProof("ct.test", 123456, 999999, &callback); | |
| 627 ASSERT_TRUE(callback.called()); | |
| 628 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_SERVER_FAILED)); | |
| 629 EXPECT_THAT(callback.proof(), IsNull()); | |
| 630 } | |
| 631 | |
| 632 TEST_P(LogDnsClientTest, QueryAuditProofReportsServerRefusal) { | |
| 633 ExpectRequestAndErrorResponse("0.123456.999999.tree.ct.test.", | |
| 634 net::dns_protocol::kRcodeREFUSED); | |
| 635 | |
| 636 MockAuditProofCallback callback; | |
| 637 QueryAuditProof("ct.test", 123456, 999999, &callback); | |
| 638 ASSERT_TRUE(callback.called()); | |
| 639 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_SERVER_FAILED)); | |
| 640 EXPECT_THAT(callback.proof(), IsNull()); | |
| 641 } | |
| 642 | |
| 643 TEST_P(LogDnsClientTest, | |
| 644 QueryAuditProofReportsResponseMalformedIfNodeTooShort) { | |
| 645 // node is shorter than a SHA-256 hash (31 vs 32 bytes) | |
| 646 const std::vector<std::string> audit_proof(1, std::string(31, 'a')); | |
| 647 | |
| 648 ExpectAuditProofRequestAndResponse("0.123456.999999.tree.ct.test.", | |
| 649 audit_proof.begin(), audit_proof.end()); | |
| 650 | |
| 651 MockAuditProofCallback callback; | |
| 652 QueryAuditProof("ct.test", 123456, 999999, &callback); | |
| 653 ASSERT_TRUE(callback.called()); | |
| 654 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_MALFORMED_RESPONSE)); | |
| 655 EXPECT_THAT(callback.proof(), IsNull()); | |
| 656 } | |
| 657 | |
| 658 TEST_P(LogDnsClientTest, QueryAuditProofReportsResponseMalformedIfNodeTooLong) { | |
| 659 // node is longer than a SHA-256 hash (33 vs 32 bytes) | |
| 660 const std::vector<std::string> audit_proof(1, std::string(33, 'a')); | |
| 661 | |
| 662 ExpectAuditProofRequestAndResponse("0.123456.999999.tree.ct.test.", | |
| 663 audit_proof.begin(), audit_proof.end()); | |
| 664 | |
| 665 MockAuditProofCallback callback; | |
| 666 QueryAuditProof("ct.test", 123456, 999999, &callback); | |
| 667 ASSERT_TRUE(callback.called()); | |
| 668 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_MALFORMED_RESPONSE)); | |
| 669 EXPECT_THAT(callback.proof(), IsNull()); | |
| 670 } | |
| 671 | |
| 672 TEST_P(LogDnsClientTest, QueryAuditProofReportsResponseMalformedIfEmpty) { | |
| 673 const std::vector<std::string> audit_proof; | |
| 674 | |
| 675 ExpectAuditProofRequestAndResponse("0.123456.999999.tree.ct.test.", | |
| 676 audit_proof.begin(), audit_proof.end()); | |
| 677 | |
| 678 MockAuditProofCallback callback; | |
| 679 QueryAuditProof("ct.test", 123456, 999999, &callback); | |
| 680 ASSERT_TRUE(callback.called()); | |
| 681 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_MALFORMED_RESPONSE)); | |
| 682 EXPECT_THAT(callback.proof(), IsNull()); | |
| 683 } | |
| 684 | |
| 685 TEST_P(LogDnsClientTest, QueryAuditProofReportsInvalidArgIfLogDomainIsEmpty) { | |
| 686 MockAuditProofCallback callback; | |
| 687 QueryAuditProof("", 123456, 999999, &callback); | |
| 688 ASSERT_TRUE(callback.called()); | |
| 689 EXPECT_THAT(callback.net_error(), IsError(net::ERR_INVALID_ARGUMENT)); | |
| 690 EXPECT_THAT(callback.proof(), IsNull()); | |
| 691 } | |
| 692 | |
| 693 TEST_P(LogDnsClientTest, QueryAuditProofReportsInvalidArgIfLogDomainIsNull) { | |
| 694 MockAuditProofCallback callback; | |
| 695 QueryAuditProof(nullptr, 123456, 999999, &callback); | |
| 696 ASSERT_TRUE(callback.called()); | |
| 697 EXPECT_THAT(callback.net_error(), IsError(net::ERR_INVALID_ARGUMENT)); | |
| 698 EXPECT_THAT(callback.proof(), IsNull()); | |
| 699 } | |
| 700 | |
| 701 TEST_P(LogDnsClientTest, | |
| 702 QueryAuditProofReportsInvalidArgIfLeafIndexEqualToTreeSize) { | |
| 703 MockAuditProofCallback callback; | |
| 704 QueryAuditProof("ct.test", 123456, 123456, &callback); | |
| 705 ASSERT_TRUE(callback.called()); | |
| 706 EXPECT_THAT(callback.net_error(), IsError(net::ERR_INVALID_ARGUMENT)); | |
| 707 EXPECT_THAT(callback.proof(), IsNull()); | |
| 708 } | |
| 709 | |
| 710 TEST_P(LogDnsClientTest, | |
| 711 QueryAuditProofReportsInvalidArgIfLeafIndexGreaterThanTreeSize) { | |
| 712 MockAuditProofCallback callback; | |
| 713 QueryAuditProof("ct.test", 999999, 123456, &callback); | |
| 714 ASSERT_TRUE(callback.called()); | |
| 715 EXPECT_THAT(callback.net_error(), IsError(net::ERR_INVALID_ARGUMENT)); | |
| 716 EXPECT_THAT(callback.proof(), IsNull()); | |
| 717 } | |
| 718 | |
| 719 TEST_P(LogDnsClientTest, QueryAuditProofReportsSocketError) { | |
| 720 ExpectRequestAndSocketError("0.123456.999999.tree.ct.test.", | |
| 721 net::ERR_CONNECTION_REFUSED); | |
| 722 | |
| 723 MockAuditProofCallback callback; | |
| 724 QueryAuditProof("ct.test", 123456, 999999, &callback); | |
| 725 ASSERT_TRUE(callback.called()); | |
| 726 EXPECT_THAT(callback.net_error(), IsError(net::ERR_CONNECTION_REFUSED)); | |
| 727 EXPECT_THAT(callback.proof(), IsNull()); | |
| 728 } | |
| 729 | |
| 730 TEST_P(LogDnsClientTest, QueryAuditProofReportsTimeout) { | |
| 731 ExpectRequestAndTimeout("0.123456.999999.tree.ct.test."); | |
| 732 | |
| 733 MockAuditProofCallback callback; | |
| 734 QueryAuditProof("ct.test", 123456, 999999, &callback); | |
| 735 ASSERT_TRUE(callback.called()); | |
| 736 EXPECT_THAT(callback.net_error(), IsError(net::ERR_DNS_TIMED_OUT)); | |
| 737 EXPECT_THAT(callback.proof(), IsNull()); | |
| 738 } | |
| 739 | |
| 740 INSTANTIATE_TEST_CASE_P(ReadMode, | |
| 741 LogDnsClientTest, | |
| 742 ::testing::Values(net::IoMode::ASYNC, | |
| 743 net::IoMode::SYNCHRONOUS)); | |
| 744 | |
| 745 } // namespace | |
| 746 } // namespace certificate_transparency | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2124873002:
Revert of Certificate Transparency DNS log client (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@mock_dns_responses