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_POLICY_ENTERPRISE_INSTALL_ATTRIBUTES_H_ 6 #define CHROME_BROWSER_CHROMEOS_POLICY_ENTERPRISE_INSTALL_ATTRIBUTES_H_ 7 8 #include <map> 9 #include <string> 10 11 #include "base/basictypes.h" 12 #include "base/callback.h" 13 #include "base/compiler_specific.h" 14 #include "base/files/file_path.h" 15 #include "base/memory/weak_ptr.h" 16 #include "chromeos/dbus/cryptohome_client.h" 17 #include "chromeos/dbus/dbus_method_call_status.h" 18 #include "components/policy/core/common/cloud/cloud_policy_constants.h" 19 20 namespace policy { 21 22 // Brokers access to the enterprise-related installation-time attributes on 23 // ChromeOS. 24 // TODO(zelidrag, mnissler): Rename + move this class - http://crbug.com/249513. 25 class EnterpriseInstallAttributes { 26 public: 27 // Return codes for LockDevice(). 28 enum LockResult { 29 LOCK_SUCCESS, 30 LOCK_NOT_READY, 31 LOCK_BACKEND_ERROR, 32 LOCK_WRONG_USER, 33 }; 34 35 // A callback to handle responses of methods returning a LockResult value. 36 typedef base::Callback<void(LockResult lock_result)> LockResultCallback; 37 38 // Constants for the possible device modes that can be stored in the lockbox. 39 static const char kConsumerDeviceMode[]; 40 static const char kEnterpiseDeviceMode[]; 41 static const char kRetailKioskDeviceMode[]; 42 static const char kConsumerKioskDeviceMode[]; 43 static const char kUnknownDeviceMode[]; 44 45 // Field names in the lockbox. 46 static const char kAttrEnterpriseDeviceId[]; 47 static const char kAttrEnterpriseDomain[]; 48 static const char kAttrEnterpriseMode[]; 49 static const char kAttrEnterpriseOwned[]; 50 static const char kAttrEnterpriseUser[]; 51 static const char kAttrConsumerKioskEnabled[]; 52 53 explicit EnterpriseInstallAttributes( 54 chromeos::CryptohomeClient* cryptohome_client); 55 ~EnterpriseInstallAttributes(); 56 57 // Reads data from the cache file. The cache file is used to work around slow 58 // cryptohome startup, which takes a while to register its DBus interface. 59 // See http://crosbug.com/37367 for background on this. 60 void ReadCacheFile(const base::FilePath& cache_file); 61 62 // Makes sure the local caches for enterprise-related install attributes are 63 // up-to-date with what cryptohome has. This method checks the readiness of 64 // attributes and read them if ready. Actual read will be performed in 65 // ReadAttributesIfReady(). 66 void ReadImmutableAttributes(const base::Closure& callback); 67 68 // Locks the device to be an enterprise device registered by the given user. 69 // This can also be called after the lock has already been taken, in which 70 // case it checks that the passed user agrees with the locked attribute. 71 // |callback| must not be null and is called with the result. 72 void LockDevice(const std::string& user, 73 DeviceMode device_mode, 74 const std::string& device_id, 75 const LockResultCallback& callback); 76 77 // Checks whether this is an enterprise device. 78 bool IsEnterpriseDevice(); 79 80 // Checks whether this is a consumer kiosk enabled device. 81 bool IsConsumerKioskDevice(); 82 83 // Gets the domain this device belongs to or an empty string if the device is 84 // not an enterprise device. 85 std::string GetDomain(); 86 87 // Gets the user that registered the device. Returns an empty string if the 88 // device is not an enterprise device. 89 std::string GetRegistrationUser(); 90 91 // Gets the device id that was generated when the device was registered. 92 // Returns an empty string if the device is not an enterprise device or the 93 // device id was not stored in the lockbox (prior to R19). 94 std::string GetDeviceId(); 95 96 // Gets the mode the device was enrolled to. The return value for devices that 97 // are not locked yet will be DEVICE_MODE_UNKNOWN. 98 DeviceMode GetMode(); 99 100 protected: 101 bool device_locked_; 102 std::string registration_user_; 103 std::string registration_domain_; 104 std::string registration_device_id_; 105 DeviceMode registration_mode_; 106 107 private: 108 // Decodes the install attributes provided in |attr_map|. 109 void DecodeInstallAttributes( 110 const std::map<std::string, std::string>& attr_map); 111 112 // Helper for ReadImmutableAttributes. 113 void ReadAttributesIfReady( 114 const base::Closure& callback, 115 chromeos::DBusMethodCallStatus call_status, 116 bool result); 117 118 // Helper for LockDevice(). Handles the result of InstallAttributesIsReady() 119 // and continue processing LockDevice if the result is true. 120 void LockDeviceIfAttributesIsReady( 121 const std::string& user, 122 DeviceMode device_mode, 123 const std::string& device_id, 124 const LockResultCallback& callback, 125 chromeos::DBusMethodCallStatus call_status, 126 bool result); 127 128 // Confirms the registered user and invoke the callback. 129 void OnReadImmutableAttributes(const std::string& user, 130 const LockResultCallback& callback); 131 132 chromeos::CryptohomeClient* cryptohome_client_; 133 134 base::WeakPtrFactory<EnterpriseInstallAttributes> weak_ptr_factory_; 135 136 DISALLOW_COPY_AND_ASSIGN(EnterpriseInstallAttributes); 137 }; 138 139 } // namespace policy 140 141 #endif // CHROME_BROWSER_CHROMEOS_POLICY_ENTERPRISE_INSTALL_ATTRIBUTES_H_ 142