chromium/chrome/browser/page_load_metrics/observers/local_network_requests_page_load_metrics_observer.cc

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "chrome/browser/page_load_metrics/observers/local_network_requests_page_load_metrics_observer.h"

#include "base/lazy_instance.h"
#include "base/metrics/histogram_macros.h"
#include "chrome/browser/browser_process.h"
#include "components/page_load_metrics/browser/page_load_metrics_util.h"
#include "content/public/browser/navigation_handle.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/base/url_util.h"
#include "services/metrics/public/cpp/ukm_builders.h"
#include "services/metrics/public/cpp/ukm_recorder.h"
#include "url/gurl.h"

namespace {
// TODO(uthakore): Update router regex based on further study.
// Returns true if the IP address matches the following regular expression for
// common router IP addresses:
// "^192\.168\.(0|10?|2)\.(1(00?)?)|^10\.(0|1)\.(0|10?)\.(1(00?)?|2)"
bool IsLikelyRouterIP(net::IPAddress ip_address) { … }

// Attempts to get the IP address of a resource request from
// |extra_request_info.remote_endpoint|, trying to get it from the URL string in
// |extra_request_info.url| if that fails.
// Sets the values of |resource_ip| and |port| with the extracted IP address and
// port, respectively.
// Returns true if a valid, nonempty IP address was extracted.
bool GetIPAndPort(
    const page_load_metrics::ExtraRequestCompleteInfo& extra_request_info,
    net::IPAddress* resource_ip,
    int* resource_port) { … }

// Getter for the list of mappings for localhost ports that belong to special
// categories that we want to track.
const std::map<uint16_t, internal::PortType>& GetLocalhostPortCategories() { … }

}  // namespace

LocalNetworkRequestsPageLoadMetricsObserver::
    LocalNetworkRequestsPageLoadMetricsObserver() { … }
LocalNetworkRequestsPageLoadMetricsObserver::
    ~LocalNetworkRequestsPageLoadMetricsObserver() { … }

const char* LocalNetworkRequestsPageLoadMetricsObserver::GetObserverName()
    const { … }

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
LocalNetworkRequestsPageLoadMetricsObserver::OnFencedFramesStart(
    content::NavigationHandle* navigation_handle,
    const GURL& currently_committed_url) { … }

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
LocalNetworkRequestsPageLoadMetricsObserver::OnPrerenderStart(
    content::NavigationHandle* navigation_handle,
    const GURL& currently_committed_url) { … }

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
LocalNetworkRequestsPageLoadMetricsObserver::OnCommit(
    content::NavigationHandle* navigation_handle) { … }

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
LocalNetworkRequestsPageLoadMetricsObserver::FlushMetricsOnAppEnterBackground(
    const page_load_metrics::mojom::PageLoadTiming& timing) { … }

void LocalNetworkRequestsPageLoadMetricsObserver::OnLoadedResource(
    const page_load_metrics::ExtraRequestCompleteInfo& extra_request_info) { … }

void LocalNetworkRequestsPageLoadMetricsObserver::OnComplete(
    const page_load_metrics::mojom::PageLoadTiming& timing) { … }

void LocalNetworkRequestsPageLoadMetricsObserver::ClearLocalState() { … }

internal::ResourceType
LocalNetworkRequestsPageLoadMetricsObserver::DetermineResourceType(
    net::IPAddress resource_ip) { … }

internal::PortType
LocalNetworkRequestsPageLoadMetricsObserver::DeterminePortType(int port) { … }

void LocalNetworkRequestsPageLoadMetricsObserver::ResolveResourceTypes() { … }

void LocalNetworkRequestsPageLoadMetricsObserver::RecordUkmMetrics(
    ukm::SourceId source_id) { … }

void LocalNetworkRequestsPageLoadMetricsObserver::RecordUkmDomainType(
    ukm::SourceId source_id) { … }