android_webview/browser/metrics/aw_component_metrics_provider_delegate.cc

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "android_webview/browser/metrics/aw_component_metrics_provider_delegate.h"

#include <algorithm>
#include <string>
#include <vector>

#include "android_webview/browser/metrics/aw_metrics_service_client.h"
#include "android_webview/common/components/aw_apps_package_names_allowlist_component_utils.h"
#include "android_webview/common/metrics/app_package_name_logging_rule.h"
#include "components/component_updater/android/components_info_holder.h"
#include "components/component_updater/component_updater_service.h"
#include "components/metrics/component_metrics_provider.h"

using component_updater::ComponentInfo;

namespace android_webview {

AwComponentMetricsProviderDelegate::AwComponentMetricsProviderDelegate(
    AwMetricsServiceClient* client)
    : client_(client) {
  DCHECK(client);
}

// The returned ComponentInfo have component's id and version as this is the
// only info WebView keeps about components.
// TODO(https://crbug.com/1228535): record the component's Omaha fingerprint.
std::vector<ComponentInfo> AwComponentMetricsProviderDelegate::GetComponents() {
  std::vector<ComponentInfo> components =
      component_updater::ComponentsInfoHolder::GetInstance()->GetComponents();

  // WebViewAppsPackageNamesAllowlist component has a special case because it
  // caches the result from previous loads of the component. We want to record
  // the info of the component that is actually used (cached) regardless of the
  // info the ComponentsInfoHolder has.
  components.erase(
      std::remove_if(components.begin(), components.end(),
                     [](const ComponentInfo& c) {
                       return c.id ==
                              kWebViewAppsPackageNamesAllowlistComponentId;
                     }),
      components.end());
  absl::optional<AppPackageNameLoggingRule> record =
      client_->GetCachedAppPackageNameLoggingRule();
  if (record.has_value()) {
    components.emplace_back(kWebViewAppsPackageNamesAllowlistComponentId, "",
                            std::u16string(), record.value().GetVersion(), "");
  }

  return components;
}

}  // namespace android_webview