content/browser/browser_url_handler_impl.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_BROWSER_URL_HANDLER_IMPL_H_
   6 #define CONTENT_BROWSER_BROWSER_URL_HANDLER_IMPL_H_
   7
   8 #include <vector>
   9 #include <utility>
  10
  11 #include "base/gtest_prod_util.h"
  12 #include "base/memory/singleton.h"
  13 #include "content/public/browser/browser_url_handler.h"
  14
  15 class GURL;
  16
  17 namespace content {
  18 class BrowserContext;
  19
  20 class CONTENT_EXPORT BrowserURLHandlerImpl : public BrowserURLHandler {
  21  public:
  22   // Returns the singleton instance.
  23   static BrowserURLHandlerImpl* GetInstance();
  24
  25   // BrowserURLHandler implementation:
  26   void RewriteURLIfNecessary(GURL* url,
  27                              BrowserContext* browser_context,
  28                              bool* reverse_on_redirect) override;
  29   void SetFixupHandler(URLHandler handler) override;
  30   // Add the specified handler pair to the list of URL handlers.
  31   void AddHandlerPair(URLHandler handler, URLHandler reverse_handler) override;
  32
  33   // Fixes up the URL before rewriting occurs.
  34   void FixupURLBeforeRewrite(GURL* url, BrowserContext* browser_context);
  35
  36   // Reverses the rewriting that was done for |original| using the new |url|.
  37   bool ReverseURLRewrite(GURL* url, const GURL& original,
  38                          BrowserContext* browser_context);
  39
  40  private:
  41   // This object is a singleton:
  42   BrowserURLHandlerImpl();
  43   ~BrowserURLHandlerImpl() override;
  44   friend struct DefaultSingletonTraits<BrowserURLHandlerImpl>;
  45
  46   // A URLHandler to run in a preliminary phase, before rewriting is done.
  47   URLHandler fixup_handler_;
  48
  49   // The list of known URLHandlers, optionally with reverse-rewriters.
  50   typedef std::pair<URLHandler, URLHandler> HandlerPair;
  51   std::vector<HandlerPair> url_handlers_;
  52
  53   FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, BasicRewriteAndReverse);
  54   FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, NullHandlerReverse);
  55   FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, ViewSourceReverse);
  56
  57   DISALLOW_COPY_AND_ASSIGN(BrowserURLHandlerImpl);
  58 };
  59
  60 }  // namespace content
  61
  62 #endif  // CONTENT_BROWSER_BROWSER_URL_HANDLER_IMPL_H_