Device policy infrastructure

chrome/browser/policy/browser_policy_connector.cc

+// Copyright (c) 2011 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/browser_policy_connector.h"
+
+#include "base/command_line.h"
+#include "base/file_util.h"
+#include "base/path_service.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/policy/cloud_policy_identity_strategy.h"
+#include "chrome/browser/policy/cloud_policy_subsystem.h"
+#include "chrome/browser/policy/configuration_policy_pref_store.h"
+#include "chrome/browser/policy/configuration_policy_provider.h"
+#include "chrome/browser/policy/dummy_configuration_policy_provider.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/chrome_paths.h"
+#include "chrome/common/chrome_switches.h"
+#include "chrome/common/notification_service.h"
+#include "chrome/common/pref_names.h"
+
+#if defined(OS_WIN)
+#include "chrome/browser/policy/configuration_policy_provider_win.h"
+#elif defined(OS_MACOSX)
+#include "chrome/browser/policy/configuration_policy_provider_mac.h"
+#elif defined(OS_POSIX)
+#include "chrome/browser/policy/config_dir_policy_provider.h"
+#endif
+
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/policy/device_policy_identity_strategy.h"
+#endif
+
+namespace {
+
+const FilePath::CharType kDevicePolicyCacheFile[] =
+    FILE_PATH_LITERAL("Policy");
+
+}  // namespace
+
+namespace policy {
+
+BrowserPolicyConnector::BrowserPolicyConnector() {
+  managed_platform_provider_.reset(CreateManagedPlatformProvider());
+  recommended_platform_provider_.reset(CreateRecommendedPlatformProvider());
+  registrar_.Add(this, NotificationType::DEFAULT_REQUEST_CONTEXT_AVAILABLE,
+                 NotificationService::AllSources());
+
+#if defined(OS_CHROMEOS)
+  CommandLine* command_line = CommandLine::ForCurrentProcess();
+  if (command_line->HasSwitch(switches::kDevicePolicyCacheDir)) {
+    FilePath cache_dir(command_line->GetSwitchValuePath(
+        switches::kDevicePolicyCacheDir));
+
+    if (!file_util::CreateDirectory(cache_dir)) {
+      LOG(WARNING) << "Device policy cache directory "
+                   << cache_dir.value()
+                   << " is not accessible, skipping initialization.";
+    } else {
+      identity_strategy_.reset(new DevicePolicyIdentityStrategy());
+      cloud_policy_subsystem_.reset(
+          new CloudPolicySubsystem(cache_dir.Append(kDevicePolicyCacheFile),
+                                   identity_strategy_.get()));
+    }
+  }
+#endif
+}
+
+BrowserPolicyConnector::BrowserPolicyConnector(
+    ConfigurationPolicyProvider* managed_platform_provider,
+    ConfigurationPolicyProvider* recommended_platform_provider)
+    : managed_platform_provider_(managed_platform_provider),
+      recommended_platform_provider_(recommended_platform_provider) {}
+
+BrowserPolicyConnector::~BrowserPolicyConnector() {
+  if (cloud_policy_subsystem_.get())
+    cloud_policy_subsystem_->Shutdown();
+  cloud_policy_subsystem_.reset();
+  identity_strategy_.reset();
+}
+
+ConfigurationPolicyProvider*
+    BrowserPolicyConnector::GetManagedPlatformProvider() const {
+  return managed_platform_provider_.get();
+}
+
+ConfigurationPolicyProvider*
+    BrowserPolicyConnector::GetManagedCloudProvider() const {
+  if (cloud_policy_subsystem_.get())
+    return cloud_policy_subsystem_->GetManagedPolicyProvider();
+
+  return NULL;
+}
+
+ConfigurationPolicyProvider*
+    BrowserPolicyConnector::GetRecommendedPlatformProvider() const {
+  return recommended_platform_provider_.get();
+}
+
+ConfigurationPolicyProvider*
+    BrowserPolicyConnector::GetRecommendedCloudProvider() const {
+  if (cloud_policy_subsystem_.get())
+    return cloud_policy_subsystem_->GetRecommendedPolicyProvider();
+
+  return NULL;
+}
+
+ConfigurationPolicyProvider*
+    BrowserPolicyConnector::CreateManagedPlatformProvider() {
+  const ConfigurationPolicyProvider::PolicyDefinitionList* policy_list =
+      ConfigurationPolicyPrefStore::GetChromePolicyDefinitionList();
+#if defined(OS_WIN)
+  return new ConfigurationPolicyProviderWin(policy_list);
+#elif defined(OS_MACOSX)
+  return new ConfigurationPolicyProviderMac(policy_list);
+#elif defined(OS_POSIX)
+  FilePath config_dir_path;
+  if (PathService::Get(chrome::DIR_POLICY_FILES, &config_dir_path)) {
+    return new ConfigDirPolicyProvider(
+        policy_list,
+        config_dir_path.Append(FILE_PATH_LITERAL("managed")));
+  } else {
+    return new DummyConfigurationPolicyProvider(policy_list);
+  }
+#else
+  return new DummyConfigurationPolicyProvider(policy_list);
+#endif
+}
+
+ConfigurationPolicyProvider*
+    BrowserPolicyConnector::CreateRecommendedPlatformProvider() {
+  const ConfigurationPolicyProvider::PolicyDefinitionList* policy_list =
+      ConfigurationPolicyPrefStore::GetChromePolicyDefinitionList();
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
+  FilePath config_dir_path;
+  if (PathService::Get(chrome::DIR_POLICY_FILES, &config_dir_path)) {
+    return new ConfigDirPolicyProvider(
+        policy_list,
+        config_dir_path.Append(FILE_PATH_LITERAL("recommended")));
+  } else {
+    return new DummyConfigurationPolicyProvider(policy_list);
+  }
+#else
+  return new DummyConfigurationPolicyProvider(policy_list);
+#endif
+}
+
+// static
+void BrowserPolicyConnector::RegisterPrefs(PrefService* local_state) {
+  local_state->RegisterIntegerPref(prefs::kPolicyDevicePolicyRefreshRate,
+                                   kDefaultPolicyRefreshRateInMilliseconds);
+}
+
+void BrowserPolicyConnector::Observe(NotificationType type,
+                                     const NotificationSource& source,
+                                     const NotificationDetails& details) {
+  if (type == NotificationType::DEFAULT_REQUEST_CONTEXT_AVAILABLE) {
+    Initialize(g_browser_process->local_state(),
+               Profile::GetDefaultRequestContext());
+  } else {
+    NOTREACHED();
+  }
+}
+
+void BrowserPolicyConnector::Initialize(
+    PrefService* local_state,
+    URLRequestContextGetter* request_context) {
+  // TODO(jkummerow, mnissler): Move this out of the browser startup path.
+  DCHECK(local_state);
+  DCHECK(request_context);
+  if (cloud_policy_subsystem_.get()) {
+    cloud_policy_subsystem_->Initialize(local_state,
+                                        prefs::kPolicyDevicePolicyRefreshRate,
+                                        request_context);
+  }
+}
+
+}  // namespace