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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_WEB_PACKAGE_BUNDLED_EXCHANGES_HANDLE_H_
#define CONTENT_BROWSER_WEB_PACKAGE_BUNDLED_EXCHANGES_HANDLE_H_
#include <memory>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/network/public/mojom/url_loader_factory.mojom.h"
#include "url/gurl.h"
namespace content {
class BundledExchangesSource;
class BundledExchangesURLLoaderFactory;
class BundledExchangesHandleTracker;
class BundledExchangesNavigationInfo;
class BundledExchangesReader;
class NavigationLoaderInterceptor;
// A class to provide interfaces to communicate with a BundledExchanges for
// loading. Running on the UI thread.
class BundledExchangesHandle {
public:
static std::unique_ptr<BundledExchangesHandle> CreateForFile(
int frame_tree_node_id);
static std::unique_ptr<BundledExchangesHandle> CreateForTrustableFile(
std::unique_ptr<BundledExchangesSource> source,
int frame_tree_node_id);
static std::unique_ptr<BundledExchangesHandle> CreateForTrackedNavigation(
scoped_refptr<BundledExchangesReader> reader,
int frame_tree_node_id);
static std::unique_ptr<BundledExchangesHandle> CreateForNavigationInfo(
std::unique_ptr<BundledExchangesNavigationInfo> navigation_info,
int frame_tree_node_id);
~BundledExchangesHandle();
// Takes a NavigationLoaderInterceptor instance to handle the request for
// a BundledExchanges, to redirect to the entry URL of the BundledExchanges,
// and to load the main exchange from the BundledExchanges.
std::unique_ptr<NavigationLoaderInterceptor> TakeInterceptor();
// Creates a URLLoaderFactory to load resources from the BundledExchanges.
void CreateURLLoaderFactory(
mojo::PendingReceiver<network::mojom::URLLoaderFactory> receiver,
mojo::Remote<network::mojom::URLLoaderFactory> fallback_factory);
// Creates a BundledExchangesHandleTracker to track navigations within the
// bundled exchanges file. Returns null if not yet succeeded to load the
// exchanges file.
std::unique_ptr<BundledExchangesHandleTracker> MaybeCreateTracker();
// Checks if a valid BundledExchanges is attached, opened, and ready for use.
bool IsReadyForLoading();
// The base URL which will be set for the document to support relative path
// subresource loading in unsigned bundled exchanges file.
const GURL& base_url_override() const { return base_url_override_; }
const BundledExchangesNavigationInfo* navigation_info() const {
return navigation_info_.get();
}
private:
BundledExchangesHandle();
void SetInterceptor(std::unique_ptr<NavigationLoaderInterceptor> interceptor);
// Called when succeeded to load the bundled exchanges file.
// |target_inner_url| is the URL of the resource in the bundled exchanges
// file, which are used for the navigation.
void OnBundledExchangesFileLoaded(
const GURL& target_inner_url,
std::unique_ptr<BundledExchangesURLLoaderFactory> url_loader_factory);
std::unique_ptr<NavigationLoaderInterceptor> interceptor_;
GURL base_url_override_;
std::unique_ptr<BundledExchangesNavigationInfo> navigation_info_;
std::unique_ptr<BundledExchangesURLLoaderFactory> url_loader_factory_;
base::WeakPtrFactory<BundledExchangesHandle> weak_factory_{this};
DISALLOW_COPY_AND_ASSIGN(BundledExchangesHandle);
};
} // namespace content
#endif // CONTENT_BROWSER_WEB_PACKAGE_BUNDLED_EXCHANGES_HANDLE_H_
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