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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/webui/log_web_ui_url.h"
#include <stdint.h>
#include <variant>
#include "base/hash/hash.h"
#include "base/metrics/histogram_functions.h"
#include "build/build_config.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/web_ui.h"
#include "content/public/common/url_constants.h"
#include "url/gurl.h"
#if !BUILDFLAG(IS_ANDROID)
#include "chrome/browser/ui/webui/top_chrome/webui_contents_preload_manager.h"
#endif // !BUILDFLAG(IS_ANDROID)
namespace {
const GURL& GetWebUIUrlForLogging(content::WebUI* web_ui) {
// This returns the actual WebUI url which can differ from the visible
// URL (e.g. chrome://newtab can be rewrote to chrome://new-tab-page or
// chrome://new-tab-page-third-party)
return web_ui->GetRenderFrameHost()->GetSiteInstance()->GetSiteURL();
}
bool ShouldLogUrl(const GURL& web_ui_url) {
return web_ui_url.SchemeIs(content::kChromeUIScheme) ||
web_ui_url.SchemeIs(content::kChromeUIUntrustedScheme) ||
web_ui_url.SchemeIs(content::kChromeDevToolsScheme);
}
} // namespace
namespace webui {
const char kWebUICreatedForUrl[] = "WebUI.CreatedForUrl";
const char kWebUIShownUrl[] = "WebUI.ShownUrl";
bool LogWebUICreated(const GURL& web_ui_url) {
if (!ShouldLogUrl(web_ui_url)) {
return false;
}
uint32_t hash = base::Hash(web_ui_url.DeprecatedGetOriginAsURL().spec());
base::UmaHistogramSparse(kWebUICreatedForUrl,
static_cast<base::HistogramBase::Sample32>(hash));
return true;
}
bool LogWebUIShown(const GURL& web_ui_url) {
if (!ShouldLogUrl(web_ui_url)) {
return false;
}
uint32_t hash = base::Hash(web_ui_url.DeprecatedGetOriginAsURL().spec());
base::UmaHistogramSparse(kWebUIShownUrl,
static_cast<base::HistogramBase::Sample32>(hash));
return true;
}
void LogWebUIUsage(std::variant<content::WebUI*, GURL> webui_variant) {
const GURL& web_ui_url =
std::holds_alternative<GURL>(webui_variant)
? std::get<GURL>(webui_variant)
: GetWebUIUrlForLogging(std::get<content::WebUI*>(webui_variant));
LogWebUICreated(web_ui_url);
#if !BUILDFLAG(IS_ANDROID)
auto* preload_manager = WebUIContentsPreloadManager::GetInstance();
auto* web_contents =
std::holds_alternative<content::WebUI*>(webui_variant)
? std::get<content::WebUI*>(webui_variant)->GetWebContents()
: nullptr;
// A preloaded WebUI may be not yet shown.
// The preload manager will log the URL when the WebUI is requested.
if (!preload_manager->WasPreloaded(web_contents) ||
preload_manager->GetRequestTime(web_contents).has_value()) {
LogWebUIShown(web_ui_url);
}
#endif // !BUILDFLAG(IS_ANDROID)
}
} // namespace webui
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