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- // Copyright 2017 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "net/nqe/network_quality_estimator_util.h"
- #include <memory>
- #include "base/bind.h"
- #include "base/check_op.h"
- #include "base/notreached.h"
- #include "net/base/address_list.h"
- #include "net/base/host_port_pair.h"
- #include "net/base/ip_address.h"
- #include "net/base/ip_endpoint.h"
- #include "net/base/net_errors.h"
- #include "net/dns/host_resolver.h"
- #include "net/dns/public/host_resolver_source.h"
- #include "net/url_request/url_request.h"
- #include "net/url_request/url_request_context.h"
- namespace net::nqe {
- namespace {
- bool IsPrivateHost(HostResolver* host_resolver,
- const HostPortPair& host_port_pair,
- const NetworkIsolationKey& network_isolation_key,
- NetLogWithSource net_log) {
- // Try resolving |host_port_pair.host()| synchronously.
- HostResolver::ResolveHostParameters parameters;
- parameters.source = HostResolverSource::LOCAL_ONLY;
- std::unique_ptr<HostResolver::ResolveHostRequest> request =
- host_resolver->CreateRequest(host_port_pair, network_isolation_key,
- net_log, parameters);
- int rv = request->Start(base::BindOnce([](int error) { NOTREACHED(); }));
- DCHECK_NE(rv, ERR_IO_PENDING);
- if (rv == OK && request->GetAddressResults() &&
- !request->GetAddressResults()->empty()) {
- // Checking only the first address should be sufficient.
- IPEndPoint ip_endpoint = request->GetAddressResults()->front();
- IPAddress ip_address = ip_endpoint.address();
- if (!ip_address.IsPubliclyRoutable())
- return true;
- }
- return false;
- }
- } // namespace
- namespace internal {
- bool IsRequestForPrivateHost(const URLRequest& request,
- NetLogWithSource net_log) {
- // Using the request's NetworkIsolationKey isn't necessary for privacy
- // reasons, but is needed to maximize the chances of a cache hit.
- return IsPrivateHost(
- request.context()->host_resolver(), HostPortPair::FromURL(request.url()),
- request.isolation_info().network_isolation_key(), net_log);
- }
- bool IsPrivateHostForTesting(HostResolver* host_resolver,
- const HostPortPair& host_port_pair,
- const NetworkIsolationKey& network_isolation_key) {
- return IsPrivateHost(host_resolver, host_port_pair, network_isolation_key,
- NetLogWithSource());
- }
- } // namespace internal
- } // namespace net::nqe
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