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// 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 "chrome/browser/extensions/api/messaging/native_message_built_in_host.h"
#include <string>
#include "content/public/browser/browser_context.h"
#include "extensions/browser/api/messaging/native_message_host.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension_id.h"
#include "extensions/common/url_pattern.h"
#include "ui/gfx/native_widget_types.h"
#include "url/gurl.h"
namespace extensions {
namespace {
bool MatchesSecurityOrigin(const NativeMessageBuiltInHost& host,
const ExtensionId& extension_id) {
GURL origin(std::string(kExtensionScheme) + "://" + extension_id);
for (const char* host_allowed_origin : host.allowed_origins) {
URLPattern allowed_origin(URLPattern::SCHEME_ALL, host_allowed_origin);
if (allowed_origin.MatchesSecurityOrigin(origin)) {
return true;
}
}
return false;
}
} // namespace
std::unique_ptr<NativeMessageHost> NativeMessageHost::Create(
content::BrowserContext* browser_context,
gfx::NativeView native_view,
const ExtensionId& source_extension_id,
const std::string& native_host_name,
bool allow_user_level,
std::string* error) {
for (const auto& host : kBuiltInHosts) {
if (host.name == native_host_name) {
if (MatchesSecurityOrigin(host, source_extension_id)) {
return (*host.create_function)(browser_context);
}
*error = kForbiddenError;
return nullptr;
}
}
*error = kNotFoundError;
return nullptr;
}
} // namespace extensions
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