chrome/browser/chromeos/policy/device_local_account.cc

   1 // Copyright (c) 2013 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 #include "chrome/browser/chromeos/policy/device_local_account.h"
   6
   7 #include <set>
   8
   9 #include "base/basictypes.h"
  10 #include "base/logging.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/strings/string_number_conversions.h"
  13 #include "base/strings/string_util.h"
  14 #include "base/values.h"
  15 #include "chrome/browser/chromeos/login/user_manager.h"
  16 #include "chrome/browser/chromeos/settings/cros_settings.h"
  17 #include "chromeos/settings/cros_settings_names.h"
  18 #include "google_apis/gaia/gaia_auth_util.h"
  19
  20 namespace policy {
  21
  22 namespace {
  23
  24 const char kPublicAccountDomainPrefix[] = "public-accounts";
  25 const char kKioskAppAccountDomainPrefix[] = "kiosk-apps";
  26 const char kDeviceLocalAccountDomainSuffix[] = ".device-local.localhost";
  27
  28 }  // namespace
  29
  30 DeviceLocalAccount::DeviceLocalAccount(Type type,
  31                                        const std::string& account_id,
  32                                        const std::string& kiosk_app_id)
  33     : type(type),
  34       account_id(account_id),
  35       user_id(GenerateDeviceLocalAccountUserId(account_id, type)),
  36       kiosk_app_id(kiosk_app_id) {
  37 }
  38
  39 DeviceLocalAccount::~DeviceLocalAccount() {
  40 }
  41
  42 std::string GenerateDeviceLocalAccountUserId(const std::string& account_id,
  43                                              DeviceLocalAccount::Type type) {
  44   std::string domain_prefix;
  45   switch (type) {
  46     case DeviceLocalAccount::TYPE_PUBLIC_SESSION:
  47       domain_prefix = kPublicAccountDomainPrefix;
  48       break;
  49     case DeviceLocalAccount::TYPE_KIOSK_APP:
  50       domain_prefix = kKioskAppAccountDomainPrefix;
  51       break;
  52     case DeviceLocalAccount::TYPE_COUNT:
  53       NOTREACHED();
  54       break;
  55   }
  56   return gaia::CanonicalizeEmail(
  57       base::HexEncode(account_id.c_str(), account_id.size()) + "@" +
  58       domain_prefix + kDeviceLocalAccountDomainSuffix);
  59 }
  60
  61 bool IsDeviceLocalAccountUser(const std::string& user_id,
  62                               DeviceLocalAccount::Type* type) {
  63   // For historical reasons, the guest user ID does not contain an @ symbol and
  64   // therefore, cannot be parsed by gaia::ExtractDomainName().
  65   if (user_id == chromeos::UserManager::kGuestUserName)
  66     return false;
  67   const std::string domain = gaia::ExtractDomainName(user_id);
  68   if (!EndsWith(domain, kDeviceLocalAccountDomainSuffix, true))
  69     return false;
  70
  71   const std::string domain_prefix = domain.substr(
  72       0, domain.size() - arraysize(kDeviceLocalAccountDomainSuffix) + 1);
  73
  74   if (domain_prefix == kPublicAccountDomainPrefix) {
  75     if (type)
  76       *type = DeviceLocalAccount::TYPE_PUBLIC_SESSION;
  77     return true;
  78   }
  79   if (domain_prefix == kKioskAppAccountDomainPrefix) {
  80     if (type)
  81       *type = DeviceLocalAccount::TYPE_KIOSK_APP;
  82     return true;
  83   }
  84
  85   // |user_id| is a device-local account but its type is not recognized.
  86   NOTREACHED();
  87   if (type)
  88     *type = DeviceLocalAccount::TYPE_COUNT;
  89   return true;
  90 }
  91
  92 void SetDeviceLocalAccounts(
  93     chromeos::CrosSettings* cros_settings,
  94     const std::vector<DeviceLocalAccount>& accounts) {
  95   base::ListValue list;
  96   for (std::vector<DeviceLocalAccount>::const_iterator it = accounts.begin();
  97        it != accounts.end(); ++it) {
  98     scoped_ptr<base::DictionaryValue> entry(new base::DictionaryValue);
  99     entry->SetStringWithoutPathExpansion(
 100         chromeos::kAccountsPrefDeviceLocalAccountsKeyId,
 101         it->account_id);
 102     entry->SetIntegerWithoutPathExpansion(
 103         chromeos::kAccountsPrefDeviceLocalAccountsKeyType,
 104         it->type);
 105     if (it->type == DeviceLocalAccount::TYPE_KIOSK_APP) {
 106       entry->SetStringWithoutPathExpansion(
 107           chromeos::kAccountsPrefDeviceLocalAccountsKeyKioskAppId,
 108           it->kiosk_app_id);
 109     }
 110     list.Append(entry.release());
 111   }
 112
 113   cros_settings->Set(chromeos::kAccountsPrefDeviceLocalAccounts, list);
 114 }
 115
 116 std::vector<DeviceLocalAccount> GetDeviceLocalAccounts(
 117     chromeos::CrosSettings* cros_settings) {
 118   std::vector<DeviceLocalAccount> accounts;
 119
 120   const base::ListValue* list = NULL;
 121   cros_settings->GetList(chromeos::kAccountsPrefDeviceLocalAccounts, &list);
 122   if (!list)
 123     return accounts;
 124
 125   std::set<std::string> account_ids;
 126   for (size_t i = 0; i < list->GetSize(); ++i) {
 127     const base::DictionaryValue* entry = NULL;
 128     if (!list->GetDictionary(i, &entry)) {
 129       LOG(ERROR) << "Corrupt entry in device-local account list at index " << i
 130                  << ".";
 131       continue;
 132     }
 133
 134     std::string account_id;
 135     if (!entry->GetStringWithoutPathExpansion(
 136             chromeos::kAccountsPrefDeviceLocalAccountsKeyId, &account_id) ||
 137         account_id.empty()) {
 138       LOG(ERROR) << "Missing account ID in device-local account list at index "
 139                  << i << ".";
 140       continue;
 141     }
 142
 143     int type;
 144     if (!entry->GetIntegerWithoutPathExpansion(
 145             chromeos::kAccountsPrefDeviceLocalAccountsKeyType, &type) ||
 146         type < 0 || type >= DeviceLocalAccount::TYPE_COUNT) {
 147       LOG(ERROR) << "Missing or invalid account type in device-local account "
 148                  << "list at index " << i << ".";
 149       continue;
 150     }
 151
 152     std::string kiosk_app_id;
 153     if (type == DeviceLocalAccount::TYPE_KIOSK_APP) {
 154       if (!entry->GetStringWithoutPathExpansion(
 155               chromeos::kAccountsPrefDeviceLocalAccountsKeyKioskAppId,
 156               &kiosk_app_id)) {
 157         LOG(ERROR) << "Missing app ID in device-local account entry at index "
 158                    << i << ".";
 159         continue;
 160       }
 161     }
 162
 163     if (!account_ids.insert(account_id).second) {
 164       LOG(ERROR) << "Duplicate entry in device-local account list at index "
 165                  << i << ": " << account_id << ".";
 166       continue;
 167     }
 168
 169     accounts.push_back(DeviceLocalAccount(
 170         static_cast<DeviceLocalAccount::Type>(type), account_id, kiosk_app_id));
 171   }
 172   return accounts;
 173 }
 174
 175 }  // namespace policy