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// Copyright (c) 2006-2008 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.
// We handle some special browser-level URLs (like "about:version")
// before they're handed to a renderer. This lets us do the URL handling
// on the browser side (which has access to more information than the
// renderers do) as well as sidestep the risk of exposing data to
// random web pages (because from the resource loader's perspective, these
// URL schemes don't exist).
#ifndef CHROME_BROWSER_BROWSER_URL_HANDLER_H__
#define CHROME_BROWSER_BROWSER_URL_HANDLER_H__
#include <vector>
class GURL;
enum TabContentsType;
// BrowserURLHandler manages the list of all special URLs and manages
// dispatching the URL handling to registered handlers.
class BrowserURLHandler {
public:
// The type of functions that can process a URL.
// If a handler handles |url|, it should :
// - optionally modify |url| to the URL that should be sent to the renderer
// - set |type| to the proper TabContentsType
// - optionally set |dispatcher| to the necessary DOMMessageDispatcher
// - return true.
// If the URL is not handled by a handler, it should return false.
typedef bool (*URLHandler)(GURL* url, TabContentsType* type);
// HandleBrowserURL gives all registered URLHandlers a shot at processing
// this URL, and returns true if one of them handled the URL. If MaybeHandle
// returns false, then |type| and |dispatcher| should not be used and
// the URL should be handled like any normal URL.
static bool HandleBrowserURL(GURL* url, TabContentsType* type);
// We initialize the list of url_handlers_ lazily the first time MaybeHandle
// is called.
static void InitURLHandlers();
// The list of known URLHandlers.
static std::vector<URLHandler> url_handlers_;
};
#endif // CHROME_BROWSER_BROWSER_URL_HANDLER_H__
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