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// Copyright 2022 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/extensions/favicon/favicon_util.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/memory/scoped_refptr.h"
#include "chrome/browser/favicon/favicon_service_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "components/favicon/core/favicon_service.h"
#include "components/favicon_base/favicon_types.h"
#include "components/favicon_base/favicon_url_parser.h"
#include "content/public/browser/browser_context.h"
#include "extensions/common/extension.h"
#include "extensions/common/permissions/permissions_data.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/resource/resource_scale_factor.h"
#include "ui/gfx/favicon_size.h"
#include "ui/native_theme/native_theme.h"
#include "ui/resources/grit/ui_resources.h"
#include "url/gurl.h"
namespace extensions {
class Extension;
namespace favicon_util {
namespace {
int GetResourceID(int size_in_pixels) {
bool is_dark = false;
const ui::NativeTheme* native_theme =
ui::NativeTheme::GetInstanceForNativeUi();
int resource_id = is_dark ? IDR_DEFAULT_FAVICON : IDR_DEFAULT_FAVICON_DARK;
is_dark = native_theme && native_theme->ShouldUseDarkColors();
if (size_in_pixels >= 64) {
resource_id =
is_dark ? IDR_DEFAULT_FAVICON_DARK_64 : IDR_DEFAULT_FAVICON_64;
} else if (size_in_pixels >= 32) {
resource_id =
is_dark ? IDR_DEFAULT_FAVICON_DARK_32 : IDR_DEFAULT_FAVICON_32;
}
return resource_id;
}
void OnFaviconAvailable(FaviconCallback callback,
int size_in_pixels,
const favicon_base::FaviconRawBitmapResult& result) {
if (result.is_valid()) {
std::move(callback).Run(result.bitmap_data);
} else {
std::move(callback).Run(
ui::ResourceBundle::GetSharedInstance().LoadDataResourceBytesForScale(
GetResourceID(size_in_pixels),
ui::GetSupportedResourceScaleFactor(1)));
}
}
} // namespace
void GetFaviconForExtensionRequest(content::BrowserContext* browser_context,
const Extension* extension,
const GURL& url,
base::CancelableTaskTracker* tracker,
FaviconCallback callback) {
// Validation.
if (!extension->permissions_data()->HasAPIPermission(
mojom::APIPermissionID::kFavicon) ||
extension->manifest_version() < 3) {
std::move(callback).Run(nullptr);
return;
}
// Parse url. Restrict which parameters are exposed to the Extension API.
// pageUrl must be present.
chrome::ParsedFaviconPath parsed;
if (!ParseFaviconPath(url, &parsed) || parsed.page_url.empty()) {
std::move(callback).Run(nullptr);
return;
}
// Use exact URL match instead of host match
constexpr bool kAllowFallbackToHost = false;
int size_in_pixels = parsed.size_in_dip;
Profile* profile = Profile::FromBrowserContext(browser_context);
favicon::FaviconService* favicon_service =
FaviconServiceFactory::GetForProfile(profile,
ServiceAccessType::EXPLICIT_ACCESS);
favicon_service->GetRawFaviconForPageURL(
GURL(parsed.page_url), {favicon_base::IconType::kFavicon}, size_in_pixels,
kAllowFallbackToHost,
base::BindOnce(&favicon_util::OnFaviconAvailable, std::move(callback),
size_in_pixels),
tracker);
}
bool ParseFaviconPath(const GURL& url, chrome::ParsedFaviconPath* parsed) {
if (!url.has_query()) {
return false;
}
return chrome::ParseFaviconPath("?" + url.query(),
chrome::FaviconUrlFormat::kFavicon2, parsed);
}
} // namespace favicon_util
} // namespace extensions
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