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// Copyright 2023 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/ash/scalable_iph/scalable_iph_debug_ui.h"
#include <sstream>
#include <string_view>
#include "ash/constants/ash_features.h"
#include "base/containers/fixed_flat_set.h"
#include "base/memory/ref_counted_memory.h"
#include "base/memory/scoped_refptr.h"
#include "base/strings/strcat.h"
#include "chromeos/ash/components/scalable_iph/logger.h"
#include "chromeos/ash/components/scalable_iph/scalable_iph.h"
#include "chromeos/ash/components/scalable_iph/scalable_iph_factory.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
namespace ash {
namespace {
constexpr char kLoggingPath[] = "log.txt";
constexpr char kRecordFiveMinTickEventPath[] = "record-five-min-tick-event";
constexpr char kRecordedFiveMinTickEvent[] = "Recorded ScalableIphFiveMinTick.";
constexpr char kPreTagBegin[] = "<pre>";
constexpr char kPreTagEnd[] = "</pre>";
constexpr char kNewline[] = "\n";
constexpr auto kSupportedPaths = base::MakeFixedFlatSet<std::string_view>(
{kLoggingPath, kRecordFiveMinTickEventPath});
std::string WrapWithPreTags(const std::string& content) {
return base::StrCat({kPreTagBegin, kNewline, content, kNewline, kPreTagEnd});
}
bool ShouldHandleRequest(const std::string& path) {
return kSupportedPaths.contains(path);
}
std::string CollectServiceStartUpDebugLog(
content::BrowserContext* browser_context) {
std::ostringstream log;
log << "Failed to get a Scalable Iph service. Collect debug logs for the "
"service initialization.\n";
ScalableIphFactory* scalable_iph_factory = ScalableIphFactory::GetInstance();
if (!scalable_iph_factory) {
log << "Failed to obtain ScalableIphFactory instance.\n";
return log.str();
}
log << "Call ScalableIphFactory::GetBrowserContextToUse for debugging.\n";
scalable_iph::Logger logger;
content::BrowserContext* result =
scalable_iph_factory->GetBrowserContextToUseForDebug(browser_context,
&logger);
log << "Return value of ScalableIphFactory::GetBrowserContextToUseForDebug: "
"result == nullptr: "
<< (result == nullptr) << "\n";
log << "Log from ScalableIphFactory::GetBrowserContextToUseForDebug:\n";
log << logger.GenerateLog() << "\n";
return log.str();
}
} // namespace
bool ScalableIphDebugUIConfig::IsWebUIEnabled(
content::BrowserContext* browser_context) {
return ash::features::IsScalableIphDebugEnabled();
}
ScalableIphDebugUI::ScalableIphDebugUI(content::WebUI* web_ui)
: ui::UntrustedWebUIController(web_ui) {
content::WebUIDataSource* web_ui_data_source =
content::WebUIDataSource::CreateAndAdd(
web_ui->GetWebContents()->GetBrowserContext(),
scalable_iph::kScalableIphDebugURL);
web_ui_data_source->SetRequestFilter(
base::BindRepeating(&ShouldHandleRequest),
base::BindRepeating(&ScalableIphDebugUI::HandleRequest,
weak_ptr_factory_.GetWeakPtr()));
}
ScalableIphDebugUI::~ScalableIphDebugUI() = default;
void ScalableIphDebugUI::HandleRequest(
const std::string& path,
content::WebUIDataSource::GotDataCallback callback) {
CHECK(kSupportedPaths.contains(path));
content::BrowserContext* browser_context =
web_ui()->GetWebContents()->GetBrowserContext();
scalable_iph::ScalableIph* scalable_iph =
ScalableIphFactory::GetForBrowserContext(browser_context);
if (!scalable_iph) {
// `ScalableIph` might not be available even if the feature flag is on, e.g.
// pre-conditions don't get satisfied, querying a service before its
// initialization, etc.
std::move(callback).Run(base::MakeRefCounted<base::RefCountedString>(
WrapWithPreTags(CollectServiceStartUpDebugLog(browser_context))));
return;
}
if (path == kRecordFiveMinTickEventPath) {
scalable_iph->RecordEvent(scalable_iph::ScalableIph::Event::kFiveMinTick);
std::move(callback).Run(base::MakeRefCounted<base::RefCountedString>(
WrapWithPreTags(kRecordedFiveMinTickEvent)));
return;
} else if (path == kLoggingPath) {
std::move(callback).Run(base::MakeRefCounted<base::RefCountedString>(
WrapWithPreTags(scalable_iph->GetLogger()->GenerateLog())));
return;
}
}
} // namespace ash
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