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// Copyright 2014 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/extensions/api/messaging/native_messaging_policy_handler.h"
#include <utility>
#include "base/logging.h"
#include "chrome/browser/extensions/api/messaging/native_messaging_host_manifest.h"
#include "chrome/browser/extensions/external_policy_loader.h"
#include "components/policy/core/browser/policy_error_map.h"
#include "components/policy/core/common/policy_map.h"
#include "components/policy/policy_constants.h"
#include "components/prefs/pref_value_map.h"
#include "components/strings/grit/components_strings.h"
namespace extensions {
NativeMessagingHostListPolicyHandler::NativeMessagingHostListPolicyHandler(
const char* policy_name,
const char* pref_path,
bool allow_wildcards)
: policy::TypeCheckingPolicyHandler(policy_name, base::Value::Type::LIST),
pref_path_(pref_path),
allow_wildcards_(allow_wildcards) {}
NativeMessagingHostListPolicyHandler::~NativeMessagingHostListPolicyHandler() {}
bool NativeMessagingHostListPolicyHandler::CheckPolicySettings(
const policy::PolicyMap& policies,
policy::PolicyErrorMap* errors) {
return CheckAndGetList(policies, errors, NULL);
}
void NativeMessagingHostListPolicyHandler::ApplyPolicySettings(
const policy::PolicyMap& policies,
PrefValueMap* prefs) {
std::unique_ptr<base::ListValue> list;
policy::PolicyErrorMap errors;
if (CheckAndGetList(policies, &errors, &list) && list)
prefs->SetValue(pref_path(), std::move(list));
}
const char* NativeMessagingHostListPolicyHandler::pref_path() const {
return pref_path_;
}
bool NativeMessagingHostListPolicyHandler::CheckAndGetList(
const policy::PolicyMap& policies,
policy::PolicyErrorMap* errors,
std::unique_ptr<base::ListValue>* names) {
const base::Value* value = NULL;
if (!CheckAndGetValue(policies, errors, &value))
return false;
if (!value)
return true;
const base::ListValue* list_value = NULL;
if (!value->GetAsList(&list_value)) {
NOTREACHED();
return false;
}
// Filter the list, rejecting any invalid native messaging host names.
std::unique_ptr<base::ListValue> filtered_list(new base::ListValue());
for (base::ListValue::const_iterator entry(list_value->begin());
entry != list_value->end(); ++entry) {
std::string name;
if (!(*entry)->GetAsString(&name)) {
errors->AddError(policy_name(), entry - list_value->begin(),
IDS_POLICY_TYPE_ERROR,
base::Value::GetTypeName(base::Value::Type::STRING));
continue;
}
if (!(allow_wildcards_ && name == "*") &&
!NativeMessagingHostManifest::IsValidName(name)) {
errors->AddError(policy_name(),
entry - list_value->begin(),
IDS_POLICY_VALUE_FORMAT_ERROR);
continue;
}
filtered_list->AppendString(name);
}
if (names)
*names = std::move(filtered_list);
return true;
}
} // namespace extensions
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