1 // Copyright (c) 2011 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_POLICY_CLOUD_POLICY_IDENTITY_STRATEGY_H_ 6 #define CHROME_BROWSER_POLICY_CLOUD_POLICY_IDENTITY_STRATEGY_H_ 7 #pragma once 8 9 #include <string> 10 11 #include "base/observer_list.h" 12 #include "chrome/browser/policy/proto/device_management_backend.pb.h" 13 14 namespace policy { 15 16 namespace em = enterprise_management; 17 18 // Manages a device management token, i.e. an identifier that represents a 19 // registration with the device management service, and the associated 20 // credentials. Responsibilities include storing and loading the token from 21 // disk, observing and triggering relevant notifications. 22 class CloudPolicyIdentityStrategy { 23 public: 24 class Observer { 25 public: 26 virtual ~Observer() {} 27 28 // Notifies observers that the effective token for fetching policy has 29 // changed. The token can be queried by calling GetDeviceToken(). 30 virtual void OnDeviceTokenChanged() = 0; 31 32 // Authentication credentials for talking to the device management service 33 // changed. New auth data is available through GetCredentials(). 34 virtual void OnCredentialsChanged() = 0; 35 }; 36 37 CloudPolicyIdentityStrategy(); 38 virtual ~CloudPolicyIdentityStrategy(); 39 40 void AddObserver(Observer* obs); 41 void RemoveObserver(Observer* obs); 42 43 // Returns the device management token, if available. Returns the empty string 44 // if the device token is currently unavailable. 45 virtual std::string GetDeviceToken() = 0; 46 47 // Returns the device ID for this device. This is a unique identifier that is 48 // randomly generated at registration time on the client side. It always has 49 // to be sent along with the device token to the server. 50 virtual std::string GetDeviceID() = 0; 51 52 // Returns physical machine ID for this device. 53 virtual std::string GetMachineID() = 0; 54 55 // Returns physical machine model for this device. 56 virtual std::string GetMachineModel() = 0; 57 58 // Returns the policy type to be used for registering at the device management 59 // server. 60 virtual em::DeviceRegisterRequest_Type GetPolicyRegisterType() = 0; 61 62 // Returns the policy type to be used for requesting policies from the device 63 // management server. 64 virtual std::string GetPolicyType() = 0; 65 66 // Retrieves authentication credentials to use when talking to the device 67 // management service. Returns true if the data is available and writes the 68 // values to the provided pointers. 69 virtual bool GetCredentials(std::string* username, 70 std::string* auth_token) = 0; 71 72 // Notifies the identity strategy that a new token has been fetched. It is up 73 // to the identity strategy to store the token, decide whether it is going 74 // to be used, send out an appropriate OnDeviceTokenChanged() notification 75 // and return the new token in GetDeviceToken() calls. 76 virtual void OnDeviceTokenAvailable(const std::string& token) = 0; 77 78 protected: 79 // Notify observers that the effective token has changed. 80 void NotifyDeviceTokenChanged(); 81 82 // Notify observers about authentication data change. 83 void NotifyAuthChanged(); 84 85 private: 86 ObserverList<Observer, true> observer_list_; 87 88 DISALLOW_COPY_AND_ASSIGN(CloudPolicyIdentityStrategy); 89 }; 90 91 } // namespace policy 92 93 #endif // CHROME_BROWSER_POLICY_CLOUD_POLICY_IDENTITY_STRATEGY_H_ 94
