chromeos/login/auth/online_attempt_host.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 CHROMEOS_LOGIN_AUTH_ONLINE_ATTEMPT_HOST_H_
   6 #define CHROMEOS_LOGIN_AUTH_ONLINE_ATTEMPT_HOST_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/single_thread_task_runner.h"
  14 #include "chromeos/chromeos_export.h"
  15 #include "chromeos/login/auth/auth_attempt_state_resolver.h"
  16 #include "chromeos/login/auth/user_context.h"
  17
  18 namespace net {
  19 class URLRequestContextGetter;
  20 }
  21
  22 namespace chromeos {
  23
  24 class AuthAttemptState;
  25 class OnlineAttempt;
  26 class UserContext;
  27
  28 // Helper class which hosts OnlineAttempt for online credentials checking.
  29 class CHROMEOS_EXPORT OnlineAttemptHost : public AuthAttemptStateResolver {
  30  public:
  31   class Delegate {
  32    public:
  33     // Called after user_context were checked online.
  34     virtual void OnChecked(const std::string& username, bool success) = 0;
  35   };
  36
  37   explicit OnlineAttemptHost(Delegate* delegate);
  38   ~OnlineAttemptHost() override;
  39
  40   // Performs an online check of the credentials in |request_context| and
  41   // invokes
  42   // the delegate's OnChecked() with the result. Note that only one check can be
  43   // in progress at any given time. If this method is invoked with a different
  44   // |user_context| than a check currently in progress, the current check will
  45   // be silently aborted.
  46   void Check(net::URLRequestContextGetter* request_context,
  47              const UserContext& user_context);
  48
  49   // Resets the checking process.
  50   void Reset();
  51
  52   // AuthAttemptStateResolver overrides.
  53   // Executed on IO thread.
  54   void Resolve() override;
  55
  56   // Does an actual resolve on UI thread.
  57   void ResolveOnUIThread(bool success);
  58
  59  private:
  60   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
  61   Delegate* delegate_;
  62   UserContext current_attempt_user_context_;
  63   scoped_ptr<OnlineAttempt> online_attempt_;
  64   scoped_ptr<AuthAttemptState> state_;
  65   base::WeakPtrFactory<OnlineAttemptHost> weak_ptr_factory_;
  66
  67   DISALLOW_COPY_AND_ASSIGN(OnlineAttemptHost);
  68 };
  69
  70 }  // namespace chromeos
  71
  72 #endif  // CHROMEOS_LOGIN_AUTH_ONLINE_ATTEMPT_HOST_H_