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