Privacy Blacklist Unblock...

chrome/browser/privacy_blacklist/blocked_response.h

 // 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.
 
-namespace BlockedResponse {
+class BlockedResponse {
+ public:
+  BlockedResponse() {};
 
-// Returns the HTML document used as substituted content for blacklisted
-// elements.
-std::string GetHTML(const Blacklist::Match* match);
+  // 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 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);
 
-}  // namespace BlockedResponse
+  // 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_