Translate device-local account IDs to user IDs

chrome/browser/chromeos/policy/device_local_account.cc

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/chromeos/policy/device_local_account.h"
+
+#include <set>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/values.h"
+#include "chrome/browser/chromeos/settings/cros_settings.h"
+#include "chrome/browser/chromeos/settings/cros_settings_names.h"
+#include "google_apis/gaia/gaia_auth_util.h"
+
+namespace policy {
+
+namespace {
+
+const char kPublicAccountDomainPrefix[] = "public-accounts";
+const char kKioskAppAccountDomainPrefix[] = "kiosk-apps";
+const char kDeviceLocalAccountDomainSuffix[] = ".device-local.localhost";
+
+}  // namespace
+
+DeviceLocalAccount::DeviceLocalAccount(Type type,
+                                       const std::string& account_id,
+                                       const std::string& kiosk_app_id,
+                                       const std::string& kiosk_app_update_url)
+    : type(type),
+      account_id(account_id),
+      user_id(GenerateDeviceLocalAccountUserId(account_id, type)),
+      kiosk_app_id(kiosk_app_id),
+      kiosk_app_update_url(kiosk_app_update_url) {
+}
+
+DeviceLocalAccount::~DeviceLocalAccount() {
+}
+
+std::string GenerateDeviceLocalAccountUserId(const std::string& account_id,
+                                             DeviceLocalAccount::Type type) {
+  std::string domain_prefix;
+  switch (type) {
+    case DeviceLocalAccount::TYPE_PUBLIC_SESSION:
+      domain_prefix = kPublicAccountDomainPrefix;
+      break;
+    case DeviceLocalAccount::TYPE_KIOSK_APP:
+      domain_prefix = kKioskAppAccountDomainPrefix;
+      break;
+    case DeviceLocalAccount::TYPE_COUNT:
+      NOTREACHED();
+      break;
+  }
+  return base::HexEncode(account_id.c_str(), account_id.size()) + "@" +
+      domain_prefix + kDeviceLocalAccountDomainSuffix;
+}
+
+bool IsKioskAppUser(const std::string& user_id) {
+  return gaia::ExtractDomainName(user_id) ==
+      std::string(kKioskAppAccountDomainPrefix) +
+          kDeviceLocalAccountDomainSuffix;
+}
+
+void SetDeviceLocalAccounts(
+    chromeos::CrosSettings* cros_settings,
+    const std::vector<DeviceLocalAccount>& accounts) {
+  base::ListValue list;
+  for (std::vector<DeviceLocalAccount>::const_iterator it = accounts.begin();
+       it != accounts.end(); ++it) {
+    scoped_ptr<base::DictionaryValue> entry(new base::DictionaryValue);
+    entry->SetStringWithoutPathExpansion(
+        chromeos::kAccountsPrefDeviceLocalAccountsKeyId,
+        it->account_id);
+    entry->SetIntegerWithoutPathExpansion(
+        chromeos::kAccountsPrefDeviceLocalAccountsKeyType,
+        it->type);
+    if (it->type == DeviceLocalAccount::TYPE_KIOSK_APP) {
+      entry->SetStringWithoutPathExpansion(
+          chromeos::kAccountsPrefDeviceLocalAccountsKeyKioskAppId,
+          it->kiosk_app_id);
+      if (!it->kiosk_app_update_url.empty()) {
+        entry->SetStringWithoutPathExpansion(
+            chromeos::kAccountsPrefDeviceLocalAccountsKeyKioskAppUpdateURL,
+            it->kiosk_app_update_url);
+      }
+    }
+    list.Append(entry.release());
+  }
+
+  cros_settings->Set(chromeos::kAccountsPrefDeviceLocalAccounts, list);
+}
+
+std::vector<DeviceLocalAccount> GetDeviceLocalAccounts(
+    chromeos::CrosSettings* cros_settings) {
+  std::vector<DeviceLocalAccount> accounts;
+
+  const base::ListValue* list = NULL;
+  cros_settings->GetList(chromeos::kAccountsPrefDeviceLocalAccounts, &list);
+  if (!list)
+    return accounts;
+
+  std::set<std::string> account_ids;
+  for (size_t i = 0; i < list->GetSize(); ++i) {
+    const base::DictionaryValue* entry = NULL;
+    if (!list->GetDictionary(i, &entry)) {
+      LOG(ERROR) << "Corrupt entry in device-local account list at index " << i
+                 << ".";
+      continue;
+    }
+
+    std::string account_id;
+    if (!entry->GetStringWithoutPathExpansion(
+            chromeos::kAccountsPrefDeviceLocalAccountsKeyId, &account_id) ||
+        account_id.empty()) {
+      LOG(ERROR) << "Missing account ID in device-local account list at index "
+                 << i << ".";
+      continue;
+    }
+
+    int type;
+    if (!entry->GetIntegerWithoutPathExpansion(
+            chromeos::kAccountsPrefDeviceLocalAccountsKeyType, &type) ||
+        type < 0 || type >= DeviceLocalAccount::TYPE_COUNT) {
+      LOG(ERROR) << "Missing or invalid account type in device-local account "
+                 << "list at index " << i << ".";
+      continue;
+    }
+
+    std::string kiosk_app_id;
+    std::string kiosk_app_update_url;
+    if (type == DeviceLocalAccount::TYPE_KIOSK_APP) {
+      if (!entry->GetStringWithoutPathExpansion(
+              chromeos::kAccountsPrefDeviceLocalAccountsKeyKioskAppId,
+              &kiosk_app_id)) {
+        LOG(ERROR) << "Missing app ID in device-local account entry at index "
+                   << i << ".";
+        continue;
+      }
+      entry->GetStringWithoutPathExpansion(
+          chromeos::kAccountsPrefDeviceLocalAccountsKeyKioskAppUpdateURL,
+          &kiosk_app_update_url);
+    }
+
+    if (!account_ids.insert(account_id).second) {
+      LOG(ERROR) << "Duplicate entry in device-local account list at index "
+                 << i << ": " << account_id << ".";
+      continue;
+    }
+
+    accounts.push_back(DeviceLocalAccount(
+        static_cast<DeviceLocalAccount::Type>(type),
+        account_id, kiosk_app_id, kiosk_app_update_url));
+  }
+  return accounts;
+}
+
+}  // namespace policy