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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_BROWSER_URL_HANDLER_IMPL_H_
#define CONTENT_BROWSER_BROWSER_URL_HANDLER_IMPL_H_
#include <utility>
#include <vector>
#include "base/gtest_prod_util.h"
#include "base/memory/singleton.h"
#include "content/common/content_export.h"
#include "content/public/browser/browser_url_handler.h"
class GURL;
namespace content {
class BrowserContext;
class CONTENT_EXPORT BrowserURLHandlerImpl : public BrowserURLHandler {
public:
// Returns the singleton instance.
static BrowserURLHandlerImpl* GetInstance();
BrowserURLHandlerImpl(const BrowserURLHandlerImpl&) = delete;
BrowserURLHandlerImpl& operator=(const BrowserURLHandlerImpl&) = delete;
// BrowserURLHandler implementation:
void RewriteURLIfNecessary(GURL* url,
BrowserContext* browser_context) override;
std::vector<GURL> GetPossibleRewrites(
const GURL& url,
BrowserContext* browser_context) override;
void AddHandlerPair(URLHandler handler, URLHandler reverse_handler) override;
// Like the //content-public RewriteURLIfNecessary overload (overridden
// above), but if the original URL needs to be adjusted if the modified URL is
// redirected, this method sets |*reverse_on_redirect| to true.
void RewriteURLIfNecessary(GURL* url,
BrowserContext* browser_context,
bool* reverse_on_redirect);
// Reverses the rewriting that was done for |original| using the new |url|.
bool ReverseURLRewrite(GURL* url, const GURL& original,
BrowserContext* browser_context);
// Reverses |AddHandlerPair| for the given |handler|.
void RemoveHandlerForTesting(URLHandler handler);
private:
// This object is a singleton:
BrowserURLHandlerImpl();
~BrowserURLHandlerImpl() override;
friend struct base::DefaultSingletonTraits<BrowserURLHandlerImpl>;
// The list of known URLHandlers, optionally with reverse-rewriters.
typedef std::pair<URLHandler, URLHandler> HandlerPair;
std::vector<HandlerPair> url_handlers_;
FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, BasicRewriteAndReverse);
FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, NullHandlerReverse);
FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, ViewSourceReverse);
FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, GetPossibleRewrites);
};
} // namespace content
#endif // CONTENT_BROWSER_BROWSER_URL_HANDLER_IMPL_H_
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