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      1 // Copyright 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/policy/javascript_policy_handler.h"
      6 
      7 #include "base/prefs/pref_value_map.h"
      8 #include "base/values.h"
      9 #include "chrome/common/pref_names.h"
     10 #include "components/content_settings/core/common/content_settings.h"
     11 #include "components/policy/core/browser/policy_error_map.h"
     12 #include "components/policy/core/common/policy_map.h"
     13 #include "grit/components_strings.h"
     14 #include "policy/policy_constants.h"
     15 
     16 namespace policy {
     17 
     18 JavascriptPolicyHandler::JavascriptPolicyHandler() {}
     19 
     20 JavascriptPolicyHandler::~JavascriptPolicyHandler() {}
     21 
     22 bool JavascriptPolicyHandler::CheckPolicySettings(const PolicyMap& policies,
     23                                                   PolicyErrorMap* errors) {
     24   const base::Value* javascript_enabled =
     25       policies.GetValue(key::kJavascriptEnabled);
     26   const base::Value* default_setting =
     27       policies.GetValue(key::kDefaultJavaScriptSetting);
     28 
     29   if (javascript_enabled &&
     30       !javascript_enabled->IsType(base::Value::TYPE_BOOLEAN)) {
     31     errors->AddError(key::kJavascriptEnabled,
     32                      IDS_POLICY_TYPE_ERROR,
     33                      ValueTypeToString(base::Value::TYPE_BOOLEAN));
     34   }
     35 
     36   if (default_setting && !default_setting->IsType(base::Value::TYPE_INTEGER)) {
     37     errors->AddError(key::kDefaultJavaScriptSetting,
     38                      IDS_POLICY_TYPE_ERROR,
     39                      ValueTypeToString(base::Value::TYPE_INTEGER));
     40   }
     41 
     42   if (javascript_enabled && default_setting) {
     43     errors->AddError(key::kJavascriptEnabled,
     44                      IDS_POLICY_OVERRIDDEN,
     45                      key::kDefaultJavaScriptSetting);
     46   }
     47 
     48   return true;
     49 }
     50 
     51 void JavascriptPolicyHandler::ApplyPolicySettings(const PolicyMap& policies,
     52                                                   PrefValueMap* prefs) {
     53   int setting = CONTENT_SETTING_DEFAULT;
     54   const base::Value* default_setting =
     55       policies.GetValue(key::kDefaultJavaScriptSetting);
     56 
     57   if (default_setting) {
     58     default_setting->GetAsInteger(&setting);
     59   } else {
     60     const base::Value* javascript_enabled =
     61         policies.GetValue(key::kJavascriptEnabled);
     62     bool enabled = true;
     63     if (javascript_enabled &&
     64         javascript_enabled->GetAsBoolean(&enabled) &&
     65         !enabled) {
     66       setting = CONTENT_SETTING_BLOCK;
     67     }
     68   }
     69 
     70   if (setting != CONTENT_SETTING_DEFAULT)
     71     prefs->SetInteger(prefs::kManagedDefaultJavaScriptSetting, setting);
     72 }
     73 
     74 }  // namespace policy
     75