content/browser/appcache/appcache_interceptor.h

   1 // Copyright 2014 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_APPCACHE_APPCACHE_INTERCEPTOR_H_
   6 #define CONTENT_BROWSER_APPCACHE_APPCACHE_INTERCEPTOR_H_
   7
   8 #include "base/basictypes.h"
   9 #include "content/common/content_export.h"
  10 #include "content/public/common/resource_type.h"
  11 #include "net/url_request/url_request_interceptor.h"
  12
  13 class GURL;
  14
  15 namespace net {
  16 class URLRequest;
  17 }
  18
  19 namespace content {
  20 class AppCacheRequestHandler;
  21 class AppCacheServiceImpl;
  22
  23 // An interceptor to hijack requests and potentially service them out of
  24 // the appcache.
  25 class CONTENT_EXPORT AppCacheInterceptor : public net::URLRequestInterceptor {
  26  public:
  27   // Must be called to make a request eligible for retrieval from an appcache.
  28   static void SetExtraRequestInfo(net::URLRequest* request,
  29                                   AppCacheServiceImpl* service,
  30                                   int process_id,
  31                                   int host_id,
  32                                   ResourceType resource_type,
  33                                   bool should_reset_appcache);
  34
  35   // May be called after response headers are complete to retrieve extra
  36   // info about the response.
  37   static void GetExtraResponseInfo(net::URLRequest* request,
  38                                    int64* cache_id,
  39                                    GURL* manifest_url);
  40
  41   // Methods to support cross site navigations.
  42   static void PrepareForCrossSiteTransfer(net::URLRequest* request,
  43                                           int old_process_id);
  44   static void CompleteCrossSiteTransfer(net::URLRequest* request,
  45                                         int new_process_id,
  46                                         int new_host_id);
  47   static void MaybeCompleteCrossSiteTransferInOldProcess(
  48       net::URLRequest* request,
  49       int old_process_id);
  50
  51   AppCacheInterceptor();
  52   ~AppCacheInterceptor() override;
  53
  54  protected:
  55   // Override from net::URLRequestInterceptor:
  56   net::URLRequestJob* MaybeInterceptRequest(
  57       net::URLRequest* request,
  58       net::NetworkDelegate* network_delegate) const override;
  59   net::URLRequestJob* MaybeInterceptResponse(
  60       net::URLRequest* request,
  61       net::NetworkDelegate* network_delegate) const override;
  62   net::URLRequestJob* MaybeInterceptRedirect(
  63       net::URLRequest* request,
  64       net::NetworkDelegate* network_delegate,
  65       const GURL& location) const override;
  66
  67  private:
  68   static void SetHandler(net::URLRequest* request,
  69                          AppCacheRequestHandler* handler);
  70   static AppCacheRequestHandler* GetHandler(net::URLRequest* request);
  71
  72   DISALLOW_COPY_AND_ASSIGN(AppCacheInterceptor);
  73 };
  74
  75 }  // namespace content
  76
  77 #endif  // CONTENT_BROWSER_APPCACHE_APPCACHE_INTERCEPTOR_H_