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// 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/common/extensions/features/permission_feature.h"
#include "chrome/common/extensions/permissions/permission_set.h"
namespace extensions {
PermissionFeature::PermissionFeature() {
}
PermissionFeature::~PermissionFeature() {
}
Feature::Availability PermissionFeature::IsAvailableToContext(
const Extension* extension,
Feature::Context context,
const GURL& url,
Feature::Platform platform) const {
Availability availability = SimpleFeature::IsAvailableToContext(extension,
context,
url,
platform);
if (!availability.is_available())
return availability;
// Optional permissions need to be checked so an API will not be set to
// undefined forever, when it could just need optional permissions.
if (extension && !extension->HasAPIPermission(name()) &&
!extension->optional_permission_set()->HasAnyAccessToAPI(name())) {
return CreateAvailability(NOT_PRESENT, extension->GetType());
}
return CreateAvailability(IS_AVAILABLE);
}
std::string PermissionFeature::Parse(const DictionaryValue* value) {
std::string error = SimpleFeature::Parse(value);
if (!error.empty())
return error;
if (extension_types()->empty()) {
return name() + ": Permission features must specify at least one " +
"value for extension_types.";
}
if (!GetContexts()->empty())
return name() + ": Permission features do not support contexts.";
return "";
}
} // namespace
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