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// Copyright (c) 2009 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 CHROME_BROWSER_PRIVACY_BLACKLIST_BLOCKED_RESPONSE_H_
#define CHROME_BROWSER_PRIVACY_BLACKLIST_BLOCKED_RESPONSE_H_
#include <string>
#include <set>
#include "chrome/browser/privacy_blacklist/blacklist.h"
namespace chrome {
extern const char kUnblockScheme[];
extern const char kBlockScheme[];
// Generate localized responses to replace blacklisted resources.
// Blacklisted resources such as frames and iframes are replaced
// by HTML. Non visual resources such as Javascript and CSS are
// simply be cancelled so there is no blocked response for them.
class BlockedResponse {
public:
BlockedResponse() {}
// Returns the HTML document used as substituted content for blacklisted
// elements.
std::string GetHTML(const std::string& url, const Blacklist::Match* match);
// Returns the image (as a string because that is what is expected by callers)
// used as substituted content for blacklisted elements.
std::string GetImage(const Blacklist::Match* match);
// Returns HTTP headers for a blocked response replacing the given url.
std::string GetHeaders(const std::string& url);
// Gets the original url of a blocked resource from its blocked url.
// The input must be a chome-unblock://XXX url. If the unblock url is
// not found, then about:blank is returned.
std::string GetOriginalURL(const std::string& url);
private:
// Returns a chrome-block://XXX link for the given requested URL.
std::string GetBlockedURL(const std::string& url);
// Returns a chrome-unblock://XXX link for the given chrome-block://YYY url.
std::string GetUnblockedURL(const std::string& url);
std::set<std::string> blocked_;
DISALLOW_COPY_AND_ASSIGN(BlockedResponse);
};
}
#endif // CHROME_BROWSER_PRIVACY_BLACKLIST_BLOCKED_RESPONSE_H_
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