Move ManagedModePolicyProvider functionality to ManagedUserSettingsService.

chrome/browser/policy/managed_mode_policy_provider.cc

Index: chrome/browser/policy/managed_mode_policy_provider.cc
diff --git a/chrome/browser/policy/managed_mode_policy_provider.cc b/chrome/browser/policy/managed_mode_policy_provider.cc
deleted file mode 100644
index cff89714b2ea21a8ceed368c2f0540caf598ad0f..0000000000000000000000000000000000000000
--- a/chrome/browser/policy/managed_mode_policy_provider.cc
+++ /dev/null
@@ -1,384 +0,0 @@
-// Copyright (c) 2012 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/policy/managed_mode_policy_provider.h"
-
-#include "base/callback.h"
-#include "base/json/json_reader.h"
-#include "base/json/json_writer.h"
-#include "base/prefs/json_pref_store.h"
-#include "base/strings/string_util.h"
-#include "base/threading/sequenced_worker_pool.h"
-#include "chrome/browser/managed_mode/managed_mode_url_filter.h"
-#include "chrome/browser/policy/external_data_fetcher.h"
-#include "chrome/browser/policy/policy_bundle.h"
-#include "chrome/browser/prefs/incognito_mode_prefs.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/common/chrome_constants.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/user_metrics.h"
-#include "policy/policy_constants.h"
-#include "sync/api/sync_change.h"
-#include "sync/protocol/sync.pb.h"
-
-using base::DictionaryValue;
-using base::JSONReader;
-using base::Value;
-using content::BrowserThread;
-using content::UserMetricsAction;
-using syncer::MANAGED_USER_SETTINGS;
-using syncer::ModelType;
-using syncer::SyncChange;
-using syncer::SyncChangeList;
-using syncer::SyncChangeProcessor;
-using syncer::SyncData;
-using syncer::SyncDataList;
-using syncer::SyncError;
-using syncer::SyncErrorFactory;
-using syncer::SyncMergeResult;
-
-namespace {
-
-const char kAtomicSettings[] = "atomic_settings";
-const char kManagedUserInternalPolicyPrefix[] = "X-";
-const char kQueuedItems[] = "queued_items";
-const char kSplitSettingKeySeparator = ':';
-const char kSplitSettings[] = "split_settings";
-
-bool SettingShouldApplyToPolicy(const std::string& key) {
-  return !StartsWithASCII(key, kManagedUserInternalPolicyPrefix, false);
-}
-
-}  // namespace
-
-namespace policy {
-
-
-// static
-scoped_ptr<ManagedModePolicyProvider> ManagedModePolicyProvider::Create(
-    Profile* profile,
-    base::SequencedTaskRunner* sequenced_task_runner,
-    bool force_load) {
-  base::FilePath path =
-      profile->GetPath().Append(chrome::kManagedModePolicyFilename);
-  JsonPrefStore* pref_store = new JsonPrefStore(path, sequenced_task_runner);
-  // Load the data synchronously if needed (when creating profiles on startup).
-  if (force_load)
-    pref_store->ReadPrefs();
-  else
-    pref_store->ReadPrefsAsync(NULL);
-
-  return make_scoped_ptr(new ManagedModePolicyProvider(pref_store));
-}
-
-ManagedModePolicyProvider::ManagedModePolicyProvider(
-    PersistentPrefStore* pref_store)
-    : store_(pref_store),
-      local_policies_(new DictionaryValue) {
-  store_->AddObserver(this);
-  if (store_->IsInitializationComplete())
-    UpdatePolicyFromCache();
-}
-
-ManagedModePolicyProvider::~ManagedModePolicyProvider() {}
-
-void ManagedModePolicyProvider::Clear() {
-  store_->RemoveValue(kAtomicSettings);
-  store_->RemoveValue(kSplitSettings);
-}
-
-// static
-std::string ManagedModePolicyProvider::MakeSplitSettingKey(
-    const std::string& prefix,
-    const std::string& key) {
-  return prefix + kSplitSettingKeySeparator + key;
-}
-
-void ManagedModePolicyProvider::UploadItem(const std::string& key,
-                                           scoped_ptr<Value> value) {
-  DCHECK(!SettingShouldApplyToPolicy(key));
-
-  std::string key_suffix = key;
-  DictionaryValue* dict = NULL;
-  if (sync_processor_) {
-    content::RecordAction(
-        UserMetricsAction("ManagedUsers_UploadItem_Syncing"));
-    dict = GetDictionaryAndSplitKey(&key_suffix);
-    DCHECK(GetQueuedItems()->empty());
-    SyncChangeList change_list;
-    SyncData data = CreateSyncDataForPolicy(key, value.get());
-    SyncChange::SyncChangeType change_type =
-        dict->HasKey(key_suffix) ? SyncChange::ACTION_UPDATE
-                                 : SyncChange::ACTION_ADD;
-    change_list.push_back(SyncChange(FROM_HERE, change_type, data));
-    SyncError error =
-        sync_processor_->ProcessSyncChanges(FROM_HERE, change_list);
-    DCHECK(!error.IsSet()) << error.ToString();
-  } else {
-    content::RecordAction(
-        UserMetricsAction("ManagedUsers_UploadItem_Queued"));
-    dict = GetQueuedItems();
-  }
-  dict->SetWithoutPathExpansion(key_suffix, value.release());
-}
-
-void ManagedModePolicyProvider::SetLocalPolicyForTesting(
-    const std::string& key,
-    scoped_ptr<Value> value) {
-  if (value)
-    local_policies_->SetWithoutPathExpansion(key, value.release());
-  else
-    local_policies_->RemoveWithoutPathExpansion(key, NULL);
-
-  UpdatePolicyFromCache();
-}
-
-// static
-SyncData ManagedModePolicyProvider::CreateSyncDataForPolicy(
-    const std::string& name,
-    const Value* value) {
-  std::string json_value;
-  base::JSONWriter::Write(value, &json_value);
-  ::sync_pb::EntitySpecifics specifics;
-  specifics.mutable_managed_user_setting()->set_name(name);
-  specifics.mutable_managed_user_setting()->set_value(json_value);
-  return SyncData::CreateLocalData(name, name, specifics);
-}
-
-void ManagedModePolicyProvider::Shutdown() {
-  store_->RemoveObserver(this);
-  ConfigurationPolicyProvider::Shutdown();
-}
-
-void ManagedModePolicyProvider::RefreshPolicies() {
-  UpdatePolicyFromCache();
-}
-
-bool ManagedModePolicyProvider::IsInitializationComplete(
-    PolicyDomain domain) const {
-  if (domain == POLICY_DOMAIN_CHROME)
-    return store_->IsInitializationComplete();
-  return true;
-}
-
-void ManagedModePolicyProvider::OnPrefValueChanged(const std::string& key) {}
-
-void ManagedModePolicyProvider::OnInitializationCompleted(bool success) {
-  DCHECK(success);
-  UpdatePolicyFromCache();
-}
-
-SyncMergeResult ManagedModePolicyProvider::MergeDataAndStartSyncing(
-    ModelType type,
-    const SyncDataList& initial_sync_data,
-    scoped_ptr<SyncChangeProcessor> sync_processor,
-    scoped_ptr<SyncErrorFactory> error_handler) {
-  DCHECK_EQ(MANAGED_USER_SETTINGS, type);
-  sync_processor_ = sync_processor.Pass();
-  error_handler_ = error_handler.Pass();
-
-  // Clear all atomic and split settings, then recreate them from Sync data.
-  Clear();
-  for (SyncDataList::const_iterator it = initial_sync_data.begin();
-       it != initial_sync_data.end(); ++it) {
-    DCHECK_EQ(MANAGED_USER_SETTINGS, it->GetDataType());
-    const ::sync_pb::ManagedUserSettingSpecifics& managed_user_setting =
-        it->GetSpecifics().managed_user_setting();
-    scoped_ptr<Value> value(JSONReader::Read(managed_user_setting.value()));
-    std::string name_suffix = managed_user_setting.name();
-    DictionaryValue* dict = GetDictionaryAndSplitKey(&name_suffix);
-    dict->SetWithoutPathExpansion(name_suffix, value.release());
-  }
-  store_->ReportValueChanged(kAtomicSettings);
-  store_->ReportValueChanged(kSplitSettings);
-  UpdatePolicyFromCache();
-
-  // Upload all the queued up items (either with an ADD or an UPDATE action,
-  // depending on whether they already exist) and move them to split settings.
-  SyncChangeList change_list;
-  DictionaryValue* queued_items = GetQueuedItems();
-  for (DictionaryValue::Iterator it(*queued_items); !it.IsAtEnd();
-       it.Advance()) {
-    std::string key_suffix = it.key();
-    DictionaryValue* dict = GetDictionaryAndSplitKey(&key_suffix);
-    SyncData data = CreateSyncDataForPolicy(it.key(), &it.value());
-    SyncChange::SyncChangeType change_type =
-        dict->HasKey(key_suffix) ? SyncChange::ACTION_UPDATE
-                                 : SyncChange::ACTION_ADD;
-    change_list.push_back(SyncChange(FROM_HERE, change_type, data));
-    dict->SetWithoutPathExpansion(key_suffix, it.value().DeepCopy());
-  }
-  queued_items->Clear();
-
-  SyncMergeResult result(MANAGED_USER_SETTINGS);
-  // Process all the accumulated changes from the queued items.
-  if (change_list.size() > 0) {
-    store_->ReportValueChanged(kQueuedItems);
-    result.set_error(
-        sync_processor_->ProcessSyncChanges(FROM_HERE, change_list));
-  }
-
-  // TODO(bauerb): Statistics?
-  return result;
-}
-
-void ManagedModePolicyProvider::StopSyncing(ModelType type) {
-  DCHECK_EQ(syncer::MANAGED_USER_SETTINGS, type);
-  sync_processor_.reset();
-  error_handler_.reset();
-}
-
-SyncDataList ManagedModePolicyProvider::GetAllSyncData(ModelType type) const {
-  DCHECK_EQ(syncer::MANAGED_USER_SETTINGS, type);
-  SyncDataList data;
-  for (DictionaryValue::Iterator it(*GetAtomicSettings()); !it.IsAtEnd();
-       it.Advance()) {
-    data.push_back(CreateSyncDataForPolicy(it.key(), &it.value()));
-  }
-  for (DictionaryValue::Iterator it(*GetSplitSettings()); !it.IsAtEnd();
-       it.Advance()) {
-    const DictionaryValue* dict = NULL;
-    it.value().GetAsDictionary(&dict);
-    for (DictionaryValue::Iterator jt(*dict); !jt.IsAtEnd(); jt.Advance()) {
-      data.push_back(CreateSyncDataForPolicy(
-          MakeSplitSettingKey(it.key(), jt.key()), &jt.value()));
-    }
-  }
-  DCHECK_EQ(0u, GetQueuedItems()->size());
-  return data;
-}
-
-SyncError ManagedModePolicyProvider::ProcessSyncChanges(
-    const tracked_objects::Location& from_here,
-    const SyncChangeList& change_list) {
-  for (SyncChangeList::const_iterator it = change_list.begin();
-       it != change_list.end(); ++it) {
-    SyncData data = it->sync_data();
-    DCHECK_EQ(MANAGED_USER_SETTINGS, data.GetDataType());
-    const ::sync_pb::ManagedUserSettingSpecifics& managed_user_setting =
-        data.GetSpecifics().managed_user_setting();
-    std::string key = managed_user_setting.name();
-    DictionaryValue* dict = GetDictionaryAndSplitKey(&key);
-    switch (it->change_type()) {
-      case SyncChange::ACTION_ADD:
-      case SyncChange::ACTION_UPDATE: {
-        scoped_ptr<Value> value(JSONReader::Read(managed_user_setting.value()));
-        if (dict->HasKey(key)) {
-          DLOG_IF(WARNING, it->change_type() == SyncChange::ACTION_ADD)
-              << "Value for key " << key << " already exists";
-        } else {
-          DLOG_IF(WARNING, it->change_type() == SyncChange::ACTION_UPDATE)
-              << "Value for key " << key << " doesn't exist yet";
-        }
-        dict->SetWithoutPathExpansion(key, value.release());
-        break;
-      }
-      case SyncChange::ACTION_DELETE: {
-        DLOG_IF(WARNING, !dict->HasKey(key)) << "Trying to delete nonexistent "
-                                             << "key " << key;
-        dict->RemoveWithoutPathExpansion(key, NULL);
-        break;
-      }
-      case SyncChange::ACTION_INVALID: {
-        NOTREACHED();
-        break;
-      }
-    }
-  }
-  store_->ReportValueChanged(kAtomicSettings);
-  store_->ReportValueChanged(kSplitSettings);
-  UpdatePolicyFromCache();
-
-  SyncError error;
-  return error;
-}
-
-void ManagedModePolicyProvider::InitLocalPolicies() {
-  local_policies_->Clear();
-  local_policies_->SetBoolean(policy::key::kAllowDeletingBrowserHistory, false);
-  local_policies_->SetInteger(policy::key::kContentPackDefaultFilteringBehavior,
-                              ManagedModeURLFilter::ALLOW);
-  local_policies_->SetBoolean(policy::key::kForceSafeSearch, true);
-  local_policies_->SetBoolean(policy::key::kHideWebStoreIcon, true);
-  local_policies_->SetInteger(policy::key::kIncognitoModeAvailability,
-                              IncognitoModePrefs::DISABLED);
-  local_policies_->SetBoolean(policy::key::kSigninAllowed, false);
-  UpdatePolicyFromCache();
-}
-
-DictionaryValue* ManagedModePolicyProvider::GetOrCreateDictionary(
-    const std::string& key) const {
-  Value* value = NULL;
-  DictionaryValue* dict = NULL;
-  if (store_->GetMutableValue(key, &value)) {
-    bool success = value->GetAsDictionary(&dict);
-    DCHECK(success);
-  } else {
-    dict = new base::DictionaryValue;
-    store_->SetValue(key, dict);
-  }
-
-  return dict;
-}
-
-DictionaryValue* ManagedModePolicyProvider::GetAtomicSettings() const {
-  return GetOrCreateDictionary(kAtomicSettings);
-}
-
-DictionaryValue* ManagedModePolicyProvider::GetSplitSettings() const {
-  return GetOrCreateDictionary(kSplitSettings);
-}
-
-DictionaryValue* ManagedModePolicyProvider::GetQueuedItems() const {
-  return GetOrCreateDictionary(kQueuedItems);
-}
-
-DictionaryValue* ManagedModePolicyProvider::GetDictionaryAndSplitKey(
-    std::string* key) const {
-  size_t pos = key->find_first_of(kSplitSettingKeySeparator);
-  if (pos == std::string::npos)
-    return GetAtomicSettings();
-
-  DictionaryValue* split_settings = GetSplitSettings();
-  std::string prefix = key->substr(0, pos);
-  DictionaryValue* dict = NULL;
-  if (!split_settings->GetDictionary(prefix, &dict)) {
-    dict = new DictionaryValue;
-    DCHECK(!split_settings->HasKey(prefix));
-    split_settings->Set(prefix, dict);
-  }
-  key->erase(0, pos + 1);
-  return dict;
-}
-
-void ManagedModePolicyProvider::UpdatePolicyFromCache() {
-  scoped_ptr<PolicyBundle> policy_bundle(new PolicyBundle);
-  PolicyMap* policy_map = &policy_bundle->Get(
-      PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()));
-  policy_map->LoadFrom(
-      local_policies_.get(), POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER);
-
-  DictionaryValue* atomic_settings = GetAtomicSettings();
-  for (DictionaryValue::Iterator it(*atomic_settings); !it.IsAtEnd();
-       it.Advance()) {
-    if (!SettingShouldApplyToPolicy(it.key()))
-      continue;
-
-    policy_map->Set(it.key(), POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
-                    it.value().DeepCopy(), NULL);
-  }
-
-  DictionaryValue* split_settings = GetSplitSettings();
-  for (DictionaryValue::Iterator it(*split_settings); !it.IsAtEnd();
-       it.Advance()) {
-    if (!SettingShouldApplyToPolicy(it.key()))
-      continue;
-
-    policy_map->Set(it.key(), POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
-                    it.value().DeepCopy(), NULL);
-  }
-  UpdatePolicy(policy_bundle.Pass());
-}
-
-}  // namespace policy