net/http/http_transaction_test_util.cc

   1 // Copyright 2014 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_transaction_test_util.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/bind.h"
  10 #include "base/location.h"
  11 #include "base/message_loop/message_loop.h"
  12 #include "base/single_thread_task_runner.h"
  13 #include "base/strings/stringprintf.h"
  14 #include "base/thread_task_runner_handle.h"
  15 #include "base/time/clock.h"
  16 #include "base/time/time.h"
  17 #include "net/base/load_flags.h"
  18 #include "net/base/load_timing_info.h"
  19 #include "net/base/net_errors.h"
  20 #include "net/cert/x509_certificate.h"
  21 #include "net/disk_cache/disk_cache.h"
  22 #include "net/http/http_cache.h"
  23 #include "net/http/http_request_info.h"
  24 #include "net/http/http_response_info.h"
  25 #include "net/http/http_transaction.h"
  26 #include "testing/gtest/include/gtest/gtest.h"
  27
  28 namespace net {
  29
  30 namespace {
  31 typedef base::hash_map<std::string, const MockTransaction*> MockTransactionMap;
  32 static MockTransactionMap mock_transactions;
  33 }  // namespace
  34
  35 //-----------------------------------------------------------------------------
  36 // mock transaction data
  37
  38 const MockTransaction kSimpleGET_Transaction = {
  39     "http://www.google.com/",
  40     "GET",
  41     base::Time(),
  42     "",
  43     LOAD_NORMAL,
  44     "HTTP/1.1 200 OK",
  45     "Cache-Control: max-age=10000\n",
  46     base::Time(),
  47     "<html><body>Google Blah Blah</body></html>",
  48     TEST_MODE_NORMAL,
  49     nullptr,
  50     nullptr,
  51     0,
  52     0,
  53     OK};
  54
  55 const MockTransaction kSimplePOST_Transaction = {
  56     "http://bugdatabase.com/edit",
  57     "POST",
  58     base::Time(),
  59     "",
  60     LOAD_NORMAL,
  61     "HTTP/1.1 200 OK",
  62     "",
  63     base::Time(),
  64     "<html><body>Google Blah Blah</body></html>",
  65     TEST_MODE_NORMAL,
  66     nullptr,
  67     nullptr,
  68     0,
  69     0,
  70     OK};
  71
  72 const MockTransaction kTypicalGET_Transaction = {
  73     "http://www.example.com/~foo/bar.html",
  74     "GET",
  75     base::Time(),
  76     "",
  77     LOAD_NORMAL,
  78     "HTTP/1.1 200 OK",
  79     "Date: Wed, 28 Nov 2007 09:40:09 GMT\n"
  80     "Last-Modified: Wed, 28 Nov 2007 00:40:09 GMT\n",
  81     base::Time(),
  82     "<html><body>Google Blah Blah</body></html>",
  83     TEST_MODE_NORMAL,
  84     nullptr,
  85     nullptr,
  86     0,
  87     0,
  88     OK};
  89
  90 const MockTransaction kETagGET_Transaction = {
  91     "http://www.google.com/foopy",
  92     "GET",
  93     base::Time(),
  94     "",
  95     LOAD_NORMAL,
  96     "HTTP/1.1 200 OK",
  97     "Cache-Control: max-age=10000\n"
  98     "Etag: \"foopy\"\n",
  99     base::Time(),
 100     "<html><body>Google Blah Blah</body></html>",
 101     TEST_MODE_NORMAL,
 102     nullptr,
 103     nullptr,
 104     0,
 105     0,
 106     OK};
 107
 108 const MockTransaction kRangeGET_Transaction = {
 109     "http://www.google.com/",
 110     "GET",
 111     base::Time(),
 112     "Range: 0-100\r\n",
 113     LOAD_NORMAL,
 114     "HTTP/1.1 200 OK",
 115     "Cache-Control: max-age=10000\n",
 116     base::Time(),
 117     "<html><body>Google Blah Blah</body></html>",
 118     TEST_MODE_NORMAL,
 119     nullptr,
 120     nullptr,
 121     0,
 122     0,
 123     OK};
 124
 125 static const MockTransaction* const kBuiltinMockTransactions[] = {
 126   &kSimpleGET_Transaction,
 127   &kSimplePOST_Transaction,
 128   &kTypicalGET_Transaction,
 129   &kETagGET_Transaction,
 130   &kRangeGET_Transaction
 131 };
 132
 133 const MockTransaction* FindMockTransaction(const GURL& url) {
 134   // look for overrides:
 135   MockTransactionMap::const_iterator it = mock_transactions.find(url.spec());
 136   if (it != mock_transactions.end())
 137     return it->second;
 138
 139   // look for builtins:
 140   for (size_t i = 0; i < arraysize(kBuiltinMockTransactions); ++i) {
 141     if (url == GURL(kBuiltinMockTransactions[i]->url))
 142       return kBuiltinMockTransactions[i];
 143   }
 144   return NULL;
 145 }
 146
 147 void AddMockTransaction(const MockTransaction* trans) {
 148   mock_transactions[GURL(trans->url).spec()] = trans;
 149 }
 150
 151 void RemoveMockTransaction(const MockTransaction* trans) {
 152   mock_transactions.erase(GURL(trans->url).spec());
 153 }
 154
 155 MockHttpRequest::MockHttpRequest(const MockTransaction& t) {
 156   url = GURL(t.url);
 157   method = t.method;
 158   extra_headers.AddHeadersFromString(t.request_headers);
 159   load_flags = t.load_flags;
 160 }
 161
 162 //-----------------------------------------------------------------------------
 163
 164 // static
 165 int TestTransactionConsumer::quit_counter_ = 0;
 166
 167 TestTransactionConsumer::TestTransactionConsumer(
 168     RequestPriority priority,
 169     HttpTransactionFactory* factory)
 170     : state_(IDLE), error_(OK) {
 171   // Disregard the error code.
 172   factory->CreateTransaction(priority, &trans_);
 173   ++quit_counter_;
 174 }
 175
 176 TestTransactionConsumer::~TestTransactionConsumer() {
 177 }
 178
 179 void TestTransactionConsumer::Start(const HttpRequestInfo* request,
 180                                     const BoundNetLog& net_log) {
 181   state_ = STARTING;
 182   int result = trans_->Start(
 183       request, base::Bind(&TestTransactionConsumer::OnIOComplete,
 184                           base::Unretained(this)), net_log);
 185   if (result != ERR_IO_PENDING)
 186     DidStart(result);
 187 }
 188
 189 void TestTransactionConsumer::DidStart(int result) {
 190   if (result != OK) {
 191     DidFinish(result);
 192   } else {
 193     Read();
 194   }
 195 }
 196
 197 void TestTransactionConsumer::DidRead(int result) {
 198   if (result <= 0) {
 199     DidFinish(result);
 200   } else {
 201     content_.append(read_buf_->data(), result);
 202     Read();
 203   }
 204 }
 205
 206 void TestTransactionConsumer::DidFinish(int result) {
 207   state_ = DONE;
 208   error_ = result;
 209   if (--quit_counter_ == 0)
 210     base::MessageLoop::current()->Quit();
 211 }
 212
 213 void TestTransactionConsumer::Read() {
 214   state_ = READING;
 215   read_buf_ = new IOBuffer(1024);
 216   int result = trans_->Read(read_buf_.get(),
 217                             1024,
 218                             base::Bind(&TestTransactionConsumer::OnIOComplete,
 219                                        base::Unretained(this)));
 220   if (result != ERR_IO_PENDING)
 221     DidRead(result);
 222 }
 223
 224 void TestTransactionConsumer::OnIOComplete(int result) {
 225   switch (state_) {
 226     case STARTING:
 227       DidStart(result);
 228       break;
 229     case READING:
 230       DidRead(result);
 231       break;
 232     default:
 233       NOTREACHED();
 234   }
 235 }
 236
 237 MockNetworkTransaction::MockNetworkTransaction(RequestPriority priority,
 238                                                MockNetworkLayer* factory)
 239     : request_(NULL),
 240       data_cursor_(0),
 241       priority_(priority),
 242       websocket_handshake_stream_create_helper_(NULL),
 243       transaction_factory_(factory->AsWeakPtr()),
 244       received_bytes_(0),
 245       socket_log_id_(NetLog::Source::kInvalidId),
 246       weak_factory_(this) {
 247 }
 248
 249 MockNetworkTransaction::~MockNetworkTransaction() {}
 250
 251 int MockNetworkTransaction::Start(const HttpRequestInfo* request,
 252                                   const CompletionCallback& callback,
 253                                   const BoundNetLog& net_log) {
 254   if (request_)
 255     return ERR_FAILED;
 256
 257   request_ = request;
 258   return StartInternal(request, callback, net_log);
 259 }
 260
 261 int MockNetworkTransaction::RestartIgnoringLastError(
 262     const CompletionCallback& callback) {
 263   return ERR_FAILED;
 264 }
 265
 266 int MockNetworkTransaction::RestartWithCertificate(
 267     X509Certificate* client_cert,
 268     const CompletionCallback& callback) {
 269   return ERR_FAILED;
 270 }
 271
 272 int MockNetworkTransaction::RestartWithAuth(
 273     const AuthCredentials& credentials,
 274     const CompletionCallback& callback) {
 275   if (!IsReadyToRestartForAuth())
 276     return ERR_FAILED;
 277
 278   HttpRequestInfo auth_request_info = *request_;
 279   auth_request_info.extra_headers.AddHeaderFromString("Authorization: Bar");
 280
 281   // Let the MockTransactionHandler worry about this: the only way for this
 282   // test to succeed is by using an explicit handler for the transaction so
 283   // that server behavior can be simulated.
 284   return StartInternal(&auth_request_info, callback, BoundNetLog());
 285 }
 286
 287 bool MockNetworkTransaction::IsReadyToRestartForAuth() {
 288   if (!request_)
 289     return false;
 290
 291   if (!request_->extra_headers.HasHeader("X-Require-Mock-Auth"))
 292     return false;
 293
 294   // Allow the mock server to decide whether authentication is required or not.
 295   std::string status_line = response_.headers->GetStatusLine();
 296   return status_line.find(" 401 ") != std::string::npos ||
 297       status_line.find(" 407 ") != std::string::npos;
 298 }
 299
 300 int MockNetworkTransaction::Read(IOBuffer* buf,
 301                                  int buf_len,
 302                                  const CompletionCallback& callback) {
 303   int data_len = static_cast<int>(data_.size());
 304   int num = std::min(buf_len, data_len - data_cursor_);
 305   if (test_mode_ & TEST_MODE_SLOW_READ)
 306     num = std::min(num, 1);
 307   if (num) {
 308     memcpy(buf->data(), data_.data() + data_cursor_, num);
 309     data_cursor_ += num;
 310   }
 311   if (test_mode_ & TEST_MODE_SYNC_NET_READ)
 312     return num;
 313
 314   CallbackLater(callback, num);
 315   return ERR_IO_PENDING;
 316 }
 317
 318 void MockNetworkTransaction::StopCaching() {
 319   if (transaction_factory_.get())
 320     transaction_factory_->TransactionStopCaching();
 321 }
 322
 323 bool MockNetworkTransaction::GetFullRequestHeaders(
 324     HttpRequestHeaders* headers) const {
 325   return false;
 326 }
 327
 328 int64 MockNetworkTransaction::GetTotalReceivedBytes() const {
 329   return received_bytes_;
 330 }
 331
 332 void MockNetworkTransaction::DoneReading() {
 333   if (transaction_factory_.get())
 334     transaction_factory_->TransactionDoneReading();
 335 }
 336
 337 const HttpResponseInfo* MockNetworkTransaction::GetResponseInfo() const {
 338   return &response_;
 339 }
 340
 341 LoadState MockNetworkTransaction::GetLoadState() const {
 342   if (data_cursor_)
 343     return LOAD_STATE_READING_RESPONSE;
 344   return LOAD_STATE_IDLE;
 345 }
 346
 347 UploadProgress MockNetworkTransaction::GetUploadProgress() const {
 348   return UploadProgress();
 349 }
 350
 351 void MockNetworkTransaction::SetQuicServerInfo(
 352     QuicServerInfo* quic_server_info) {
 353 }
 354
 355 bool MockNetworkTransaction::GetLoadTimingInfo(
 356     LoadTimingInfo* load_timing_info) const {
 357   if (socket_log_id_ != NetLog::Source::kInvalidId) {
 358     // The minimal set of times for a request that gets a response, assuming it
 359     // gets a new socket.
 360     load_timing_info->socket_reused = false;
 361     load_timing_info->socket_log_id = socket_log_id_;
 362     load_timing_info->connect_timing.connect_start = base::TimeTicks::Now();
 363     load_timing_info->connect_timing.connect_end = base::TimeTicks::Now();
 364     load_timing_info->send_start = base::TimeTicks::Now();
 365     load_timing_info->send_end = base::TimeTicks::Now();
 366   } else {
 367     // If there's no valid socket ID, just use the generic socket reused values.
 368     // No tests currently depend on this, just should not match the values set
 369     // by a cache hit.
 370     load_timing_info->socket_reused = true;
 371     load_timing_info->send_start = base::TimeTicks::Now();
 372     load_timing_info->send_end = base::TimeTicks::Now();
 373   }
 374   return true;
 375 }
 376
 377 void MockNetworkTransaction::SetPriority(RequestPriority priority) {
 378   priority_ = priority;
 379 }
 380
 381 void MockNetworkTransaction::SetWebSocketHandshakeStreamCreateHelper(
 382     WebSocketHandshakeStreamBase::CreateHelper* create_helper) {
 383   websocket_handshake_stream_create_helper_ = create_helper;
 384 }
 385
 386 int MockNetworkTransaction::StartInternal(const HttpRequestInfo* request,
 387                                           const CompletionCallback& callback,
 388                                           const BoundNetLog& net_log) {
 389   const MockTransaction* t = FindMockTransaction(request->url);
 390   if (!t)
 391     return ERR_FAILED;
 392
 393   test_mode_ = t->test_mode;
 394
 395   // Return immediately if we're returning an error.
 396   if (OK != t->return_code) {
 397     if (test_mode_ & TEST_MODE_SYNC_NET_START)
 398       return t->return_code;
 399     CallbackLater(callback, t->return_code);
 400     return ERR_IO_PENDING;
 401   }
 402
 403   std::string resp_status = t->status;
 404   std::string resp_headers = t->response_headers;
 405   std::string resp_data = t->data;
 406   received_bytes_ = resp_status.size() + resp_headers.size() + resp_data.size();
 407   if (t->handler)
 408     (t->handler)(request, &resp_status, &resp_headers, &resp_data);
 409
 410   std::string header_data = base::StringPrintf(
 411       "%s\n%s\n", resp_status.c_str(), resp_headers.c_str());
 412   std::replace(header_data.begin(), header_data.end(), '\n', '\0');
 413
 414   response_.request_time = transaction_factory_->Now();
 415   if (!t->request_time.is_null())
 416     response_.request_time = t->request_time;
 417
 418   response_.was_cached = false;
 419   response_.network_accessed = true;
 420
 421   response_.response_time = transaction_factory_->Now();
 422   if (!t->response_time.is_null())
 423     response_.response_time = t->response_time;
 424
 425   response_.headers = new HttpResponseHeaders(header_data);
 426   response_.vary_data.Init(*request, *response_.headers.get());
 427   response_.ssl_info.cert = t->cert;
 428   response_.ssl_info.cert_status = t->cert_status;
 429   response_.ssl_info.connection_status = t->ssl_connection_status;
 430   data_ = resp_data;
 431
 432   if (net_log.net_log())
 433     socket_log_id_ = net_log.net_log()->NextID();
 434
 435   if (request_->load_flags & LOAD_PREFETCH)
 436     response_.unused_since_prefetch = true;
 437
 438   if (test_mode_ & TEST_MODE_SYNC_NET_START)
 439     return OK;
 440
 441   CallbackLater(callback, OK);
 442   return ERR_IO_PENDING;
 443 }
 444
 445 void MockNetworkTransaction::SetBeforeNetworkStartCallback(
 446     const BeforeNetworkStartCallback& callback) {
 447 }
 448
 449 void MockNetworkTransaction::SetBeforeProxyHeadersSentCallback(
 450     const BeforeProxyHeadersSentCallback& callback) {
 451 }
 452
 453 int MockNetworkTransaction::ResumeNetworkStart() {
 454   // Should not get here.
 455   return ERR_FAILED;
 456 }
 457
 458 void MockNetworkTransaction::GetConnectionAttempts(
 459     ConnectionAttempts* out) const {
 460   NOTIMPLEMENTED();
 461 }
 462
 463 void MockNetworkTransaction::CallbackLater(const CompletionCallback& callback,
 464                                            int result) {
 465   base::ThreadTaskRunnerHandle::Get()->PostTask(
 466       FROM_HERE, base::Bind(&MockNetworkTransaction::RunCallback,
 467                             weak_factory_.GetWeakPtr(), callback, result));
 468 }
 469
 470 void MockNetworkTransaction::RunCallback(const CompletionCallback& callback,
 471                                          int result) {
 472   callback.Run(result);
 473 }
 474
 475 MockNetworkLayer::MockNetworkLayer()
 476     : transaction_count_(0),
 477       done_reading_called_(false),
 478       stop_caching_called_(false),
 479       last_create_transaction_priority_(DEFAULT_PRIORITY),
 480       clock_(nullptr) {
 481 }
 482
 483 MockNetworkLayer::~MockNetworkLayer() {}
 484
 485 void MockNetworkLayer::TransactionDoneReading() {
 486   done_reading_called_ = true;
 487 }
 488
 489 void MockNetworkLayer::TransactionStopCaching() {
 490   stop_caching_called_ = true;
 491 }
 492
 493 int MockNetworkLayer::CreateTransaction(RequestPriority priority,
 494                                         scoped_ptr<HttpTransaction>* trans) {
 495   transaction_count_++;
 496   last_create_transaction_priority_ = priority;
 497   scoped_ptr<MockNetworkTransaction> mock_transaction(
 498       new MockNetworkTransaction(priority, this));
 499   last_transaction_ = mock_transaction->AsWeakPtr();
 500   *trans = mock_transaction.Pass();
 501   return OK;
 502 }
 503
 504 HttpCache* MockNetworkLayer::GetCache() {
 505   return NULL;
 506 }
 507
 508 HttpNetworkSession* MockNetworkLayer::GetSession() {
 509   return NULL;
 510 }
 511
 512 void MockNetworkLayer::SetClock(base::Clock* clock) {
 513   DCHECK(!clock_);
 514   clock_ = clock;
 515 }
 516
 517 base::Time MockNetworkLayer::Now() {
 518   if (clock_)
 519     return clock_->Now();
 520   return base::Time::Now();
 521 }
 522
 523 //-----------------------------------------------------------------------------
 524 // helpers
 525
 526 int ReadTransaction(HttpTransaction* trans, std::string* result) {
 527   int rv;
 528
 529   TestCompletionCallback callback;
 530
 531   std::string content;
 532   do {
 533     scoped_refptr<IOBuffer> buf(new IOBuffer(256));
 534     rv = trans->Read(buf.get(), 256, callback.callback());
 535     if (rv == ERR_IO_PENDING)
 536       rv = callback.WaitForResult();
 537
 538     if (rv > 0)
 539       content.append(buf->data(), rv);
 540     else if (rv < 0)
 541       return rv;
 542   } while (rv > 0);
 543
 544   result->swap(content);
 545   return OK;
 546 }
 547
 548 }  // namespace net