network_quality_estimator_util.cc 2.5 KB

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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. #include "net/nqe/network_quality_estimator_util.h"
  5. #include <memory>
  6. #include "base/bind.h"
  7. #include "base/check_op.h"
  8. #include "base/notreached.h"
  9. #include "net/base/address_list.h"
  10. #include "net/base/host_port_pair.h"
  11. #include "net/base/ip_address.h"
  12. #include "net/base/ip_endpoint.h"
  13. #include "net/base/net_errors.h"
  14. #include "net/dns/host_resolver.h"
  15. #include "net/dns/public/host_resolver_source.h"
  16. #include "net/url_request/url_request.h"
  17. #include "net/url_request/url_request_context.h"
  18. namespace net::nqe {
  19. namespace {
  20. bool IsPrivateHost(HostResolver* host_resolver,
  21. const HostPortPair& host_port_pair,
  22. const NetworkIsolationKey& network_isolation_key,
  23. NetLogWithSource net_log) {
  24. // Try resolving |host_port_pair.host()| synchronously.
  25. HostResolver::ResolveHostParameters parameters;
  26. parameters.source = HostResolverSource::LOCAL_ONLY;
  27. std::unique_ptr<HostResolver::ResolveHostRequest> request =
  28. host_resolver->CreateRequest(host_port_pair, network_isolation_key,
  29. net_log, parameters);
  30. int rv = request->Start(base::BindOnce([](int error) { NOTREACHED(); }));
  31. DCHECK_NE(rv, ERR_IO_PENDING);
  32. if (rv == OK && request->GetAddressResults() &&
  33. !request->GetAddressResults()->empty()) {
  34. // Checking only the first address should be sufficient.
  35. IPEndPoint ip_endpoint = request->GetAddressResults()->front();
  36. IPAddress ip_address = ip_endpoint.address();
  37. if (!ip_address.IsPubliclyRoutable())
  38. return true;
  39. }
  40. return false;
  41. }
  42. } // namespace
  43. namespace internal {
  44. bool IsRequestForPrivateHost(const URLRequest& request,
  45. NetLogWithSource net_log) {
  46. // Using the request's NetworkIsolationKey isn't necessary for privacy
  47. // reasons, but is needed to maximize the chances of a cache hit.
  48. return IsPrivateHost(
  49. request.context()->host_resolver(), HostPortPair::FromURL(request.url()),
  50. request.isolation_info().network_isolation_key(), net_log);
  51. }
  52. bool IsPrivateHostForTesting(HostResolver* host_resolver,
  53. const HostPortPair& host_port_pair,
  54. const NetworkIsolationKey& network_isolation_key) {
  55. return IsPrivateHost(host_resolver, host_port_pair, network_isolation_key,
  56. NetLogWithSource());
  57. }
  58. } // namespace internal
  59. } // namespace net::nqe