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1 // Copyright 2014 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 "extensions/common/features/permission_feature.h"
6 
7 #include "extensions/common/permissions/permission_set.h"
8 #include "extensions/common/permissions/permissions_data.h"
9 
10 namespace extensions {
11 
PermissionFeature()12 PermissionFeature::PermissionFeature() {
13 }
14 
~PermissionFeature()15 PermissionFeature::~PermissionFeature() {
16 }
17 
IsAvailableToContext(const Extension * extension,Feature::Context context,const GURL & url,Feature::Platform platform) const18 Feature::Availability PermissionFeature::IsAvailableToContext(
19     const Extension* extension,
20     Feature::Context context,
21     const GURL& url,
22     Feature::Platform platform) const {
23   Availability availability = SimpleFeature::IsAvailableToContext(extension,
24                                                                   context,
25                                                                   url,
26                                                                   platform);
27   if (!availability.is_available())
28     return availability;
29 
30   if (extension && !extension->permissions_data()->HasAPIPermission(name()))
31     return CreateAvailability(NOT_PRESENT, extension->GetType());
32 
33   return CreateAvailability(IS_AVAILABLE);
34 }
35 
Parse(const base::DictionaryValue * value)36 std::string PermissionFeature::Parse(const base::DictionaryValue* value) {
37   std::string error = SimpleFeature::Parse(value);
38   if (!error.empty())
39     return error;
40 
41   if (extension_types()->empty()) {
42     return name() + ": Permission features must specify at least one " +
43         "value for extension_types.";
44   }
45 
46   if (value->HasKey("contexts"))
47     return name() + ": Permission features do not support contexts.";
48 
49   return std::string();
50 }
51 
52 }  // namespace extensions
53