1 // Copyright (c) 2013 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 "chrome/browser/chromeos/attestation/attestation_ca_client.h" 6 7 #include <string> 8 9 #include "chrome/browser/browser_process.h" 10 #include "net/base/load_flags.h" 11 #include "net/http/http_status_code.h" 12 #include "net/url_request/url_fetcher.h" 13 #include "net/url_request/url_request_status.h" 14 #include "url/gurl.h" 15 16 namespace { 17 18 const char kCertificateRequestURL[] = "https://chromeos-ca.gstatic.com/sign"; 19 const char kEnrollRequestURL[] = "https://chromeos-ca.gstatic.com/enroll"; 20 const char kMimeContentType[] = "application/octet-stream"; 21 22 } // namespace 23 24 namespace chromeos { 25 namespace attestation { 26 27 AttestationCAClient::AttestationCAClient() {} 28 29 AttestationCAClient::~AttestationCAClient() {} 30 31 void AttestationCAClient::SendEnrollRequest(const std::string& request, 32 const DataCallback& on_response) { 33 FetchURL(kEnrollRequestURL, request, on_response); 34 } 35 36 void AttestationCAClient::SendCertificateRequest( 37 const std::string& request, 38 const DataCallback& on_response) { 39 FetchURL(kCertificateRequestURL, request, on_response); 40 } 41 42 void AttestationCAClient::OnURLFetchComplete(const net::URLFetcher* source) { 43 FetcherCallbackMap::iterator iter = pending_requests_.find(source); 44 if (iter == pending_requests_.end()) { 45 LOG(WARNING) << "Callback from unknown source."; 46 return; 47 } 48 49 DataCallback callback = iter->second; 50 pending_requests_.erase(iter); 51 scoped_ptr<const net::URLFetcher> scoped_source(source); 52 53 if (source->GetStatus().status() != net::URLRequestStatus::SUCCESS) { 54 LOG(ERROR) << "Attestation CA request failed, status: " 55 << source->GetStatus().status() << ", error: " 56 << source->GetStatus().error(); 57 callback.Run(false, ""); 58 return; 59 } 60 61 if (source->GetResponseCode() != net::HTTP_OK) { 62 LOG(ERROR) << "Attestation CA sent an error response: " 63 << source->GetResponseCode(); 64 callback.Run(false, ""); 65 return; 66 } 67 68 std::string response; 69 bool result = source->GetResponseAsString(&response); 70 DCHECK(result) << "Invalid fetcher setting."; 71 72 // Run the callback last because it may delete |this|. 73 callback.Run(true, response); 74 } 75 76 void AttestationCAClient::FetchURL(const std::string& url, 77 const std::string& request, 78 const DataCallback& on_response) { 79 // The first argument allows the use of TestURLFetcherFactory in tests. 80 net::URLFetcher* fetcher = net::URLFetcher::Create(0, 81 GURL(url), 82 net::URLFetcher::POST, 83 this); 84 fetcher->SetRequestContext(g_browser_process->system_request_context()); 85 fetcher->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES | 86 net::LOAD_DO_NOT_SAVE_COOKIES | 87 net::LOAD_DISABLE_CACHE); 88 fetcher->SetUploadData(kMimeContentType, request); 89 pending_requests_[fetcher] = on_response; 90 fetcher->Start(); 91 } 92 93 } // namespace attestation 94 } // namespace chromeos 95