components/cronet/android/cronet_data_reduction_proxy.h

   1 // Copyright 2015 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 COMPONENTS_CRONET_ANDROID_CRONET_DATA_REDUCTION_PROXY_H_
   6 #define COMPONENTS_CRONET_ANDROID_CRONET_DATA_REDUCTION_PROXY_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/scoped_ptr.h"
  13
  14 class PrefService;
  15
  16 namespace base {
  17 class SingleThreadTaskRunner;
  18 }
  19
  20 namespace data_reduction_proxy {
  21 class DataReductionProxyIOData;
  22 class DataReductionProxySettings;
  23 }
  24
  25 namespace net {
  26 class NetLog;
  27 class NetworkDelegate;
  28 class URLRequestContext;
  29 class URLRequestContextGetter;
  30 class URLRequestInterceptor;
  31 }
  32
  33 namespace cronet {
  34
  35 // Wrapper and configurator of Data Reduction Proxy objects for Cronet. It
  36 // configures the Data Reduction Proxy to run both its UI and IO classes on
  37 // Cronet's network thread.
  38 class CronetDataReductionProxy {
  39  public:
  40   // Construct Data Reduction Proxy Settings and IOData objects and set
  41   // the authentication key. The |task_runner| should be suitable for running
  42   // tasks on the network thread. The primary proxy, fallback proxy, and secure
  43   // proxy check url can override defaults. All or none must be specified.
  44   CronetDataReductionProxy(
  45       const std::string& key,
  46       const std::string& primary_proxy,
  47       const std::string& fallback_proxy,
  48       const std::string& secure_proxy_check_url,
  49       const std::string& user_agent,
  50       scoped_refptr<base::SingleThreadTaskRunner> task_runner,
  51       net::NetLog* net_log);
  52
  53   ~CronetDataReductionProxy();
  54
  55   // Constructs a network delegate suitable for adding Data Reduction Proxy
  56   // request headers.
  57   scoped_ptr<net::NetworkDelegate> CreateNetworkDelegate(
  58       scoped_ptr<net::NetworkDelegate> wrapped_network_delegate);
  59
  60   // Constructs a URLRequestInterceptor suitable for carrying out the Data
  61   // Reduction Proxy's bypass protocol.
  62   scoped_ptr<net::URLRequestInterceptor> CreateInterceptor();
  63
  64   // Constructs a bridge between the Settings and IOData objects, sets up a
  65   // context for secure proxy check requests, and enables the proxy, if
  66   // |enable| is true.
  67   void Init(bool enable, net::URLRequestContext* context);
  68
  69  private:
  70   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
  71   scoped_ptr<PrefService> prefs_;
  72   scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
  73   scoped_ptr<data_reduction_proxy::DataReductionProxySettings> settings_;
  74   scoped_ptr<data_reduction_proxy::DataReductionProxyIOData> io_data_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(CronetDataReductionProxy);
  77 };
  78
  79 }  // namespace cronet
  80
  81 #endif  // COMPONENTS_CRONET_ANDROID_CRONET_DATA_REDUCTION_PROXY_H_