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      1 // Copyright (c) 2012 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_CHROMEOS_LOGIN_ONLINE_ATTEMPT_HOST_H_
      6 #define CHROME_BROWSER_CHROMEOS_LOGIN_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 "chrome/browser/chromeos/login/auth_attempt_state_resolver.h"
     14 
     15 class Profile;
     16 
     17 namespace chromeos {
     18 
     19 class AuthAttemptState;
     20 class OnlineAttempt;
     21 struct UserContext;
     22 
     23 // Helper class which hosts OnlineAttempt for online credentials checking.
     24 class OnlineAttemptHost : public AuthAttemptStateResolver {
     25  public:
     26   class Delegate {
     27     public:
     28      // Called after user_context were checked online.
     29      virtual void OnChecked(const std::string &username, bool success) = 0;
     30   };
     31 
     32   explicit OnlineAttemptHost(Delegate *delegate);
     33   virtual ~OnlineAttemptHost();
     34 
     35   // Checks user credentials using an online attempt. Calls callback with the
     36   // check result (whether authentication was successful). Note, only one
     37   // checking at a time (the newest call stops the old one, if called with
     38   // another username and password combination).
     39   void Check(Profile* profile,
     40              const UserContext& user_context);
     41 
     42   // Resets the checking process.
     43   void Reset();
     44 
     45   // AuthAttemptStateResolver overrides.
     46   // Executed on IO thread.
     47   virtual void Resolve() OVERRIDE;
     48 
     49   // Does an actual resolve on UI thread.
     50   void ResolveOnUIThread(bool success);
     51 
     52  private:
     53   Delegate* delegate_;
     54   std::string current_attempt_hash_;
     55   std::string current_username_;
     56   scoped_ptr<OnlineAttempt> online_attempt_;
     57   scoped_ptr<AuthAttemptState> state_;
     58   base::WeakPtrFactory<OnlineAttemptHost> weak_ptr_factory_;
     59 
     60   DISALLOW_COPY_AND_ASSIGN(OnlineAttemptHost);
     61 };
     62 
     63 }  // namespace chromeos
     64 
     65 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_ONLINE_ATTEMPT_HOST_H_
     66 
     67