chrome/browser/local_discovery/privetv3_session.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 CHROME_BROWSER_LOCAL_DISCOVERY_PRIVETV3_SESSION_H_
   6 #define CHROME_BROWSER_LOCAL_DISCOVERY_PRIVETV3_SESSION_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "chrome/browser/local_discovery/privet_url_fetcher.h"
  13
  14 namespace base {
  15 class DictionaryValue;
  16 }
  17
  18 namespace local_discovery {
  19
  20 class PrivetHTTPClient;
  21
  22 // Manages secure communication between browser and local Privet device.
  23 class PrivetV3Session {
  24  private:
  25   class FetcherDelegate;
  26
  27  public:
  28   // Delegate to be implemented by client code.
  29   class Delegate {
  30    public:
  31     virtual ~Delegate();
  32
  33     // Called when client code should prompt user to check |confirmation_code|.
  34     virtual void OnSetupConfirmationNeeded(
  35         const std::string& confirmation_code) = 0;
  36
  37     // Called when session successfully establish and client code my call
  38     // |CreateRequest| method.
  39     virtual void OnSessionEstablished() = 0;
  40
  41     // Called when session setup fails.
  42     virtual void OnCannotEstablishSession() = 0;
  43   };
  44
  45   // Represents request in progress using secure session.
  46   class Request {
  47    public:
  48     Request();
  49     virtual ~Request();
  50
  51     virtual std::string GetName() = 0;
  52     virtual const base::DictionaryValue& GetInput() = 0;
  53     virtual void OnError(PrivetURLFetcher::ErrorType error) = 0;
  54     virtual void OnParsedJson(const base::DictionaryValue& value,
  55                               bool has_error) = 0;
  56
  57    private:
  58     friend class PrivetV3Session;
  59     scoped_ptr<FetcherDelegate> fetcher_delegate_;
  60   };
  61
  62   PrivetV3Session(scoped_ptr<PrivetHTTPClient> client, Delegate* delegate);
  63   ~PrivetV3Session();
  64
  65   // Establishes a session, will call |OnSetupConfirmationNeeded| and then
  66   // |OnSessionEstablished|.
  67   void Start();
  68
  69   void ConfirmCode();
  70
  71   // Create a single /privet/v3/session/call request.
  72   void StartRequest(Request* request);
  73
  74  private:
  75   void ConfirmFakeCode();
  76
  77   Delegate* delegate_;
  78   scoped_ptr<PrivetHTTPClient> client_;
  79   bool code_confirmed_;
  80   base::WeakPtrFactory<PrivetV3Session> weak_ptr_factory_;
  81   DISALLOW_COPY_AND_ASSIGN(PrivetV3Session);
  82 };
  83
  84 }  // namespace local_discovery
  85
  86 #endif  // CHROME_BROWSER_LOCAL_DISCOVERY_PRIVETV3_SESSION_H_