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| 1 // Copyright 2017 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 "content/browser/devtools/devtools_url_interceptor_request_job.h" |
| 6 |
| 7 #include "base/memory/ptr_util.h" |
| 8 #include "base/strings/stringprintf.h" |
| 9 #include "content/browser/devtools/protocol/network_handler.h" |
| 10 #include "net/base/elements_upload_data_stream.h" |
| 11 #include "net/base/io_buffer.h" |
| 12 #include "net/base/upload_bytes_element_reader.h" |
| 13 #include "net/base/upload_element_reader.h" |
| 14 #include "net/cert/cert_status_flags.h" |
| 15 #include "net/http/http_response_headers.h" |
| 16 #include "net/http/http_util.h" |
| 17 #include "net/url_request/url_request_context.h" |
| 18 |
| 19 namespace content { |
| 20 |
| 21 namespace { |
| 22 void SendRequestInterceptedEventOnUiThread( |
| 23 base::WeakPtr<protocol::NetworkHandler> network_handler, |
| 24 std::string interception_id, |
| 25 std::unique_ptr<protocol::Network::Request> network_request) { |
| 26 DCHECK_CURRENTLY_ON(BrowserThread::UI); |
| 27 if (!network_handler) |
| 28 return; |
| 29 network_handler->frontend()->RequestIntercepted(interception_id, |
| 30 std::move(network_request)); |
| 31 } |
| 32 |
| 33 void SendRedirectInterceptedEventOnUiThread( |
| 34 base::WeakPtr<protocol::NetworkHandler> network_handler, |
| 35 std::string interception_id, |
| 36 std::unique_ptr<protocol::Network::Request> network_request, |
| 37 std::unique_ptr<protocol::Object> headers_object, |
| 38 int http_status_code, |
| 39 std::string redirect_url) { |
| 40 DCHECK_CURRENTLY_ON(BrowserThread::UI); |
| 41 if (!network_handler) |
| 42 return; |
| 43 return network_handler->frontend()->RequestIntercepted( |
| 44 interception_id, std::move(network_request), std::move(headers_object), |
| 45 http_status_code, redirect_url); |
| 46 } |
| 47 |
| 48 class ProxyUploadElementReader : public net::UploadElementReader { |
| 49 public: |
| 50 explicit ProxyUploadElementReader(net::UploadElementReader* reader) |
| 51 : reader_(reader) {} |
| 52 |
| 53 ~ProxyUploadElementReader() override {} |
| 54 |
| 55 // net::UploadElementReader overrides: |
| 56 int Init(const net::CompletionCallback& callback) override { |
| 57 return reader_->Init(callback); |
| 58 } |
| 59 |
| 60 uint64_t GetContentLength() const override { |
| 61 return reader_->GetContentLength(); |
| 62 } |
| 63 |
| 64 uint64_t BytesRemaining() const override { return reader_->BytesRemaining(); } |
| 65 |
| 66 bool IsInMemory() const override { return reader_->IsInMemory(); } |
| 67 |
| 68 int Read(net::IOBuffer* buf, |
| 69 int buf_length, |
| 70 const net::CompletionCallback& callback) override { |
| 71 return reader_->Read(buf, buf_length, callback); |
| 72 } |
| 73 |
| 74 private: |
| 75 net::UploadElementReader* reader_; // NOT OWNED |
| 76 |
| 77 DISALLOW_COPY_AND_ASSIGN(ProxyUploadElementReader); |
| 78 }; |
| 79 |
| 80 std::unique_ptr<net::UploadDataStream> GetUploadData(net::URLRequest* request) { |
| 81 if (!request->has_upload()) |
| 82 return nullptr; |
| 83 |
| 84 const net::UploadDataStream* stream = request->get_upload(); |
| 85 auto* readers = stream->GetElementReaders(); |
| 86 if (!readers || readers->empty()) |
| 87 return nullptr; |
| 88 |
| 89 std::vector<std::unique_ptr<net::UploadElementReader>> proxy_readers; |
| 90 proxy_readers.reserve(readers->size()); |
| 91 for (auto& reader : *readers) { |
| 92 proxy_readers.push_back( |
| 93 base::MakeUnique<ProxyUploadElementReader>(reader.get())); |
| 94 } |
| 95 |
| 96 return base::MakeUnique<net::ElementsUploadDataStream>( |
| 97 std::move(proxy_readers), 0); |
| 98 } |
| 99 } // namespace |
| 100 |
| 101 DevToolsURLInterceptorRequestJob::DevToolsURLInterceptorRequestJob( |
| 102 scoped_refptr<DevToolsURLRequestInterceptor::State> |
| 103 devtools_url_request_interceptor_state, |
| 104 const std::string& interception_id, |
| 105 net::URLRequest* original_request, |
| 106 net::NetworkDelegate* original_network_delegate, |
| 107 WebContents* web_contents, |
| 108 base::WeakPtr<protocol::NetworkHandler> network_handler, |
| 109 bool is_redirect) |
| 110 : net::URLRequestJob(original_request, original_network_delegate), |
| 111 devtools_url_request_interceptor_state_( |
| 112 devtools_url_request_interceptor_state), |
| 113 request_details_(original_request->url(), |
| 114 original_request->method(), |
| 115 GetUploadData(original_request), |
| 116 original_request->extra_request_headers(), |
| 117 original_request->priority(), |
| 118 original_request->context()), |
| 119 waiting_for_user_response_(false), |
| 120 intercepting_requests_(true), |
| 121 killed_(false), |
| 122 interception_id_(interception_id), |
| 123 web_contents_(web_contents), |
| 124 network_handler_(network_handler), |
| 125 is_redirect_(is_redirect), |
| 126 weak_ptr_factory_(this) { |
| 127 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 128 } |
| 129 |
| 130 DevToolsURLInterceptorRequestJob::~DevToolsURLInterceptorRequestJob() { |
| 131 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 132 devtools_url_request_interceptor_state_->JobFinished(interception_id_); |
| 133 } |
| 134 |
| 135 // net::URLRequestJob implementation: |
| 136 void DevToolsURLInterceptorRequestJob::SetExtraRequestHeaders( |
| 137 const net::HttpRequestHeaders& headers) { |
| 138 request_details_.extra_request_headers = headers; |
| 139 } |
| 140 |
| 141 void DevToolsURLInterceptorRequestJob::Start() { |
| 142 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 143 if (is_redirect_ || !intercepting_requests_) { |
| 144 // If this is a fetch in response to a redirect, we have already sent the |
| 145 // Network.requestIntercepted event and the user opted to allow it so |
| 146 // there's no need to send another. We can just start the SubRequest. |
| 147 // If we're not intercepting results we can also just start the SubRequest. |
| 148 sub_request_.reset(new SubRequest(request_details_, this, |
| 149 devtools_url_request_interceptor_state_)); |
| 150 } else { |
| 151 waiting_for_user_response_ = true; |
| 152 std::unique_ptr<protocol::Network::Request> network_request = |
| 153 protocol::NetworkHandler::CreateRequestFromURLRequest(request()); |
| 154 BrowserThread::PostTask( |
| 155 BrowserThread::UI, FROM_HERE, |
| 156 base::Bind(SendRequestInterceptedEventOnUiThread, network_handler_, |
| 157 interception_id_, base::Passed(&network_request))); |
| 158 } |
| 159 } |
| 160 |
| 161 void DevToolsURLInterceptorRequestJob::Kill() { |
| 162 killed_ = true; |
| 163 if (sub_request_) |
| 164 sub_request_->Cancel(); |
| 165 |
| 166 URLRequestJob::Kill(); |
| 167 } |
| 168 |
| 169 int DevToolsURLInterceptorRequestJob::ReadRawData(net::IOBuffer* buf, |
| 170 int buf_size) { |
| 171 if (sub_request_) { |
| 172 int size = sub_request_->request()->Read(buf, buf_size); |
| 173 return size; |
| 174 } else { |
| 175 CHECK(mock_response_details_); |
| 176 return mock_response_details_->ReadRawData(buf, buf_size); |
| 177 } |
| 178 } |
| 179 |
| 180 int DevToolsURLInterceptorRequestJob::GetResponseCode() const { |
| 181 if (sub_request_) { |
| 182 return sub_request_->request()->GetResponseCode(); |
| 183 } else { |
| 184 CHECK(mock_response_details_); |
| 185 return mock_response_details_->response_headers()->response_code(); |
| 186 } |
| 187 } |
| 188 |
| 189 void DevToolsURLInterceptorRequestJob::GetResponseInfo( |
| 190 net::HttpResponseInfo* info) { |
| 191 // NOTE this can get called during URLRequestJob::NotifyStartError in which |
| 192 // case we might not have either a sub request or a mock response. |
| 193 if (sub_request_) { |
| 194 *info = sub_request_->request()->response_info(); |
| 195 } else if (mock_response_details_) { |
| 196 info->headers = mock_response_details_->response_headers(); |
| 197 } |
| 198 } |
| 199 |
| 200 const net::HttpResponseHeaders* |
| 201 DevToolsURLInterceptorRequestJob::GetHttpResponseHeaders() const { |
| 202 if (sub_request_) { |
| 203 net::URLRequest* request = sub_request_->request(); |
| 204 return request->response_info().headers.get(); |
| 205 } |
| 206 CHECK(mock_response_details_); |
| 207 return mock_response_details_->response_headers().get(); |
| 208 } |
| 209 |
| 210 bool DevToolsURLInterceptorRequestJob::GetMimeType( |
| 211 std::string* mime_type) const { |
| 212 const net::HttpResponseHeaders* response_headers = GetHttpResponseHeaders(); |
| 213 if (!response_headers) |
| 214 return false; |
| 215 return response_headers->GetMimeType(mime_type); |
| 216 } |
| 217 |
| 218 bool DevToolsURLInterceptorRequestJob::GetCharset(std::string* charset) { |
| 219 const net::HttpResponseHeaders* response_headers = GetHttpResponseHeaders(); |
| 220 if (!response_headers) |
| 221 return false; |
| 222 return response_headers->GetCharset(charset); |
| 223 } |
| 224 |
| 225 void DevToolsURLInterceptorRequestJob::GetLoadTimingInfo( |
| 226 net::LoadTimingInfo* load_timing_info) const { |
| 227 if (sub_request_) { |
| 228 sub_request_->request()->GetLoadTimingInfo(load_timing_info); |
| 229 } else { |
| 230 CHECK(mock_response_details_); |
| 231 // Since this request is mocked most of the fields are irrelevant. |
| 232 load_timing_info->receive_headers_end = |
| 233 mock_response_details_->response_time(); |
| 234 } |
| 235 } |
| 236 |
| 237 bool DevToolsURLInterceptorRequestJob::NeedsAuth() { |
| 238 return !!auth_info_; |
| 239 } |
| 240 |
| 241 void DevToolsURLInterceptorRequestJob::GetAuthChallengeInfo( |
| 242 scoped_refptr<net::AuthChallengeInfo>* auth_info) { |
| 243 *auth_info = auth_info_.get(); |
| 244 } |
| 245 |
| 246 void DevToolsURLInterceptorRequestJob::SetAuth( |
| 247 const net::AuthCredentials& credentials) { |
| 248 sub_request_->request()->SetAuth(credentials); |
| 249 auth_info_ = nullptr; |
| 250 } |
| 251 |
| 252 void DevToolsURLInterceptorRequestJob::CancelAuth() { |
| 253 sub_request_->request()->CancelAuth(); |
| 254 auth_info_ = nullptr; |
| 255 } |
| 256 |
| 257 void DevToolsURLInterceptorRequestJob::OnAuthRequired( |
| 258 net::URLRequest* request, |
| 259 net::AuthChallengeInfo* auth_info) { |
| 260 DCHECK(sub_request_); |
| 261 DCHECK_EQ(request, sub_request_->request()); |
| 262 auth_info_ = auth_info; |
| 263 |
| 264 // This notification came from the sub requests URLRequest::Delegate and we |
| 265 // must proxy it the origional URLRequest::Delegate. We can't do that |
| 266 // directly but by implementing NeedsAuth and calling NotifyHeadersComplete |
| 267 // triggers it. To close the loop we also need to implement |
| 268 // GetAuthChallengeInfo, SetAuth and CancelAuth. |
| 269 NotifyHeadersComplete(); |
| 270 } |
| 271 |
| 272 void DevToolsURLInterceptorRequestJob::OnCertificateRequested( |
| 273 net::URLRequest* request, |
| 274 net::SSLCertRequestInfo* cert_request_info) { |
| 275 DCHECK(sub_request_); |
| 276 DCHECK_EQ(request, sub_request_->request()); |
| 277 NotifyCertificateRequested(cert_request_info); |
| 278 } |
| 279 |
| 280 void DevToolsURLInterceptorRequestJob::OnSSLCertificateError( |
| 281 net::URLRequest* request, |
| 282 const net::SSLInfo& ssl_info, |
| 283 bool fatal) { |
| 284 DCHECK(sub_request_); |
| 285 DCHECK_EQ(request, sub_request_->request()); |
| 286 NotifySSLCertificateError(ssl_info, fatal); |
| 287 } |
| 288 |
| 289 void DevToolsURLInterceptorRequestJob::OnResponseStarted( |
| 290 net::URLRequest* request, |
| 291 int net_error) { |
| 292 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 293 DCHECK(sub_request_); |
| 294 DCHECK_EQ(request, sub_request_->request()); |
| 295 DCHECK_NE(net::ERR_IO_PENDING, net_error); |
| 296 |
| 297 if (net_error != net::OK) { |
| 298 sub_request_->Cancel(); |
| 299 |
| 300 NotifyStartError(net::URLRequestStatus(net::URLRequestStatus::FAILED, |
| 301 static_cast<net::Error>(net_error))); |
| 302 return; |
| 303 } |
| 304 |
| 305 NotifyHeadersComplete(); |
| 306 } |
| 307 |
| 308 void DevToolsURLInterceptorRequestJob::OnReadCompleted(net::URLRequest* request, |
| 309 int num_bytes) { |
| 310 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 311 DCHECK(sub_request_); |
| 312 DCHECK_EQ(request, sub_request_->request()); |
| 313 |
| 314 // OnReadCompleted may get called while canceling the subrequest, in that |
| 315 // event theres no need to call ReadRawDataComplete. |
| 316 if (!killed_) |
| 317 ReadRawDataComplete(num_bytes); |
| 318 } |
| 319 |
| 320 void DevToolsURLInterceptorRequestJob::OnReceivedRedirect( |
| 321 net::URLRequest* request, |
| 322 const net::RedirectInfo& redirectinfo, |
| 323 bool* defer_redirect) { |
| 324 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 325 DCHECK(sub_request_); |
| 326 DCHECK_EQ(request, sub_request_->request()); |
| 327 // If we're not intercepting results then just exit. |
| 328 if (!intercepting_requests_) { |
| 329 *defer_redirect = false; |
| 330 return; |
| 331 } |
| 332 |
| 333 // Otherwise we will need to ask what to do via DevTools protocol. |
| 334 *defer_redirect = true; |
| 335 |
| 336 size_t iter = 0; |
| 337 std::string header_name; |
| 338 std::string header_value; |
| 339 std::unique_ptr<protocol::DictionaryValue> headers_dict( |
| 340 protocol::DictionaryValue::create()); |
| 341 while (request->response_headers()->EnumerateHeaderLines(&iter, &header_name, |
| 342 &header_value)) { |
| 343 headers_dict->setString(header_name, header_value); |
| 344 } |
| 345 |
| 346 redirect_.reset(new net::RedirectInfo(redirectinfo)); |
| 347 sub_request_->Cancel(); |
| 348 sub_request_.reset(); |
| 349 |
| 350 waiting_for_user_response_ = true; |
| 351 |
| 352 std::unique_ptr<protocol::Network::Request> network_request = |
| 353 protocol::NetworkHandler::CreateRequestFromURLRequest(this->request()); |
| 354 std::unique_ptr<protocol::Object> headers_object = |
| 355 protocol::Object::fromValue(headers_dict.get(), nullptr); |
| 356 BrowserThread::PostTask( |
| 357 BrowserThread::UI, FROM_HERE, |
| 358 base::Bind(SendRedirectInterceptedEventOnUiThread, network_handler_, |
| 359 interception_id_, base::Passed(&network_request), |
| 360 base::Passed(&headers_object), redirectinfo.status_code, |
| 361 redirectinfo.new_url.spec())); |
| 362 } |
| 363 |
| 364 void DevToolsURLInterceptorRequestJob::StopIntercepting() { |
| 365 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 366 intercepting_requests_ = false; |
| 367 |
| 368 // Allow the request to continue if we're waiting for user input. |
| 369 ContinueInterceptedRequest( |
| 370 base::MakeUnique<DevToolsURLRequestInterceptor::Modifications>( |
| 371 base::nullopt, base::nullopt, protocol::Maybe<std::string>(), |
| 372 protocol::Maybe<std::string>(), protocol::Maybe<std::string>(), |
| 373 protocol::Maybe<protocol::Network::Headers>())); |
| 374 } |
| 375 |
| 376 bool DevToolsURLInterceptorRequestJob::ContinueInterceptedRequest( |
| 377 std::unique_ptr<DevToolsURLRequestInterceptor::Modifications> |
| 378 modifications) { |
| 379 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 380 if (!waiting_for_user_response_) |
| 381 return false; |
| 382 waiting_for_user_response_ = false; |
| 383 |
| 384 if (modifications->error_reason) { |
| 385 NotifyStartError(net::URLRequestStatus(net::URLRequestStatus::FAILED, |
| 386 *modifications->error_reason)); |
| 387 return true; |
| 388 } |
| 389 |
| 390 if (modifications->raw_response) { |
| 391 mock_response_details_.reset(new MockResponseDetails( |
| 392 std::move(*modifications->raw_response), base::TimeTicks::Now())); |
| 393 |
| 394 std::string value; |
| 395 if (mock_response_details_->response_headers()->IsRedirect(&value)) { |
| 396 devtools_url_request_interceptor_state_->ExpectRequestAfterRedirect( |
| 397 request(), interception_id_); |
| 398 } |
| 399 NotifyHeadersComplete(); |
| 400 return true; |
| 401 } |
| 402 |
| 403 if (redirect_) { |
| 404 // NOTE we don't append the text form of the status code because |
| 405 // net::HttpResponseHeaders doesn't need that. |
| 406 std::string raw_headers = |
| 407 base::StringPrintf("HTTP/1.1 %d", redirect_->status_code); |
| 408 raw_headers.append(1, '\0'); |
| 409 raw_headers.append("Location: "); |
| 410 raw_headers.append( |
| 411 modifications->modified_url.fromMaybe(redirect_->new_url.spec())); |
| 412 raw_headers.append(2, '\0'); |
| 413 mock_response_details_.reset(new MockResponseDetails( |
| 414 make_scoped_refptr(new net::HttpResponseHeaders(raw_headers)), "", 0, |
| 415 base::TimeTicks::Now())); |
| 416 redirect_.reset(); |
| 417 |
| 418 devtools_url_request_interceptor_state_->ExpectRequestAfterRedirect( |
| 419 request(), interception_id_); |
| 420 NotifyHeadersComplete(); |
| 421 } else { |
| 422 // Note this redirect is not visible to the caller by design. If they want a |
| 423 // visible redirect they can mock a response with a 302. |
| 424 if (modifications->modified_url.isJust()) |
| 425 request_details_.url = GURL(modifications->modified_url.fromJust()); |
| 426 |
| 427 if (modifications->modified_method.isJust()) |
| 428 request_details_.method = modifications->modified_method.fromJust(); |
| 429 |
| 430 if (modifications->modified_post_data.isJust()) { |
| 431 const std::string& post_data = |
| 432 modifications->modified_post_data.fromJust(); |
| 433 std::vector<char> data(post_data.begin(), post_data.end()); |
| 434 request_details_.post_data = |
| 435 net::ElementsUploadDataStream::CreateWithReader( |
| 436 base::MakeUnique<net::UploadOwnedBytesElementReader>(&data), 0); |
| 437 } |
| 438 |
| 439 if (modifications->modified_headers.isJust()) { |
| 440 request_details_.extra_request_headers.Clear(); |
| 441 std::unique_ptr<protocol::DictionaryValue> headers = |
| 442 modifications->modified_headers.fromJust()->toValue(); |
| 443 for (size_t i = 0; i < headers->size(); i++) { |
| 444 std::string value; |
| 445 if (headers->at(i).second->asString(&value)) { |
| 446 request_details_.extra_request_headers.SetHeader(headers->at(i).first, |
| 447 value); |
| 448 } |
| 449 } |
| 450 } |
| 451 |
| 452 // The reason we start a sub request is because we are in full control of it |
| 453 // and can choose to ignore it if, for example, the fetch encounters a |
| 454 // redirect that the user chooses to replace with a mock response. |
| 455 sub_request_.reset(new SubRequest(request_details_, this, |
| 456 devtools_url_request_interceptor_state_)); |
| 457 } |
| 458 return true; |
| 459 } |
| 460 |
| 461 DevToolsURLInterceptorRequestJob::RequestDetails::RequestDetails( |
| 462 const GURL& url, |
| 463 const std::string& method, |
| 464 std::unique_ptr<net::UploadDataStream> post_data, |
| 465 const net::HttpRequestHeaders& extra_request_headers, |
| 466 const net::RequestPriority& priority, |
| 467 const net::URLRequestContext* url_request_context) |
| 468 : url(url), |
| 469 method(method), |
| 470 post_data(std::move(post_data)), |
| 471 extra_request_headers(extra_request_headers), |
| 472 priority(priority), |
| 473 url_request_context(url_request_context) {} |
| 474 |
| 475 DevToolsURLInterceptorRequestJob::RequestDetails::~RequestDetails() {} |
| 476 |
| 477 DevToolsURLInterceptorRequestJob::SubRequest::SubRequest( |
| 478 DevToolsURLInterceptorRequestJob::RequestDetails& request_details, |
| 479 DevToolsURLInterceptorRequestJob* devtools_interceptor_request_job, |
| 480 scoped_refptr<DevToolsURLRequestInterceptor::State> |
| 481 devtools_url_request_interceptor_state) |
| 482 : devtools_interceptor_request_job_(devtools_interceptor_request_job), |
| 483 devtools_url_request_interceptor_state_( |
| 484 devtools_url_request_interceptor_state), |
| 485 fetch_in_progress_(true) { |
| 486 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 487 request_ = request_details.url_request_context->CreateRequest( |
| 488 request_details.url, request_details.priority, |
| 489 devtools_interceptor_request_job_), |
| 490 request_->set_method(request_details.method); |
| 491 request_->SetExtraRequestHeaders(request_details.extra_request_headers); |
| 492 |
| 493 if (request_details.post_data) |
| 494 request_->set_upload(std::move(request_details.post_data)); |
| 495 |
| 496 devtools_url_request_interceptor_state_->RegisterSubRequest(request_.get()); |
| 497 request_->Start(); |
| 498 } |
| 499 |
| 500 DevToolsURLInterceptorRequestJob::SubRequest::~SubRequest() { |
| 501 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 502 devtools_url_request_interceptor_state_->UnregisterSubRequest(request_.get()); |
| 503 } |
| 504 |
| 505 void DevToolsURLInterceptorRequestJob::SubRequest::Cancel() { |
| 506 DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| 507 if (!fetch_in_progress_) |
| 508 return; |
| 509 |
| 510 fetch_in_progress_ = false; |
| 511 request_->Cancel(); |
| 512 } |
| 513 |
| 514 DevToolsURLInterceptorRequestJob::MockResponseDetails::MockResponseDetails( |
| 515 std::string response_bytes, |
| 516 base::TimeTicks response_time) |
| 517 : response_bytes_(std::move(response_bytes)), |
| 518 read_offset_(0), |
| 519 response_time_(response_time) { |
| 520 int header_size = net::HttpUtil::LocateEndOfHeaders(response_bytes_.c_str(), |
| 521 response_bytes_.size()); |
| 522 if (header_size == -1) { |
| 523 LOG(WARNING) << "Can't find headers in result"; |
| 524 response_headers_ = new net::HttpResponseHeaders(""); |
| 525 } else { |
| 526 response_headers_ = |
| 527 new net::HttpResponseHeaders(net::HttpUtil::AssembleRawHeaders( |
| 528 response_bytes_.c_str(), header_size)); |
| 529 read_offset_ = header_size; |
| 530 } |
| 531 |
| 532 CHECK_LE(read_offset_, response_bytes_.size()); |
| 533 } |
| 534 |
| 535 DevToolsURLInterceptorRequestJob::MockResponseDetails::MockResponseDetails( |
| 536 const scoped_refptr<net::HttpResponseHeaders>& response_headers, |
| 537 std::string response_bytes, |
| 538 size_t read_offset, |
| 539 base::TimeTicks response_time) |
| 540 : response_headers_(response_headers), |
| 541 response_bytes_(std::move(response_bytes)), |
| 542 read_offset_(read_offset), |
| 543 response_time_(response_time) {} |
| 544 |
| 545 DevToolsURLInterceptorRequestJob::MockResponseDetails::~MockResponseDetails() {} |
| 546 |
| 547 int DevToolsURLInterceptorRequestJob::MockResponseDetails::ReadRawData( |
| 548 net::IOBuffer* buf, |
| 549 int buf_size) { |
| 550 size_t bytes_available = response_bytes_.size() - read_offset_; |
| 551 size_t bytes_to_copy = |
| 552 std::min(static_cast<size_t>(buf_size), bytes_available); |
| 553 if (bytes_to_copy > 0) { |
| 554 std::memcpy(buf->data(), &response_bytes_.data()[read_offset_], |
| 555 bytes_to_copy); |
| 556 read_offset_ += bytes_to_copy; |
| 557 } |
| 558 return bytes_to_copy; |
| 559 } |
| 560 |
| 561 } // namespace content |
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