src/chrome/browser/chromeos/attestation/attestation_ca_client.cc

   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