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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/common/permissions/manifest_permission_set.h"
#include <stddef.h>
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/values.h"
#include "extensions/common/error_utils.h"
#include "extensions/common/manifest_constants.h"
#include "extensions/common/manifest_handler.h"
#include "extensions/common/permissions/manifest_permission.h"
namespace {
using extensions::ErrorUtils;
using extensions::ManifestPermission;
using extensions::ManifestPermissionSet;
using extensions::ManifestHandler;
namespace errors = extensions::manifest_errors;
bool CreateManifestPermission(const std::string& permission_name,
const base::Value* permission_value,
ManifestPermissionSet* manifest_permissions,
std::u16string* error,
std::vector<std::string>* unhandled_permissions) {
std::unique_ptr<ManifestPermission> permission(
ManifestHandler::CreatePermission(permission_name));
if (!permission) {
if (unhandled_permissions)
unhandled_permissions->push_back(permission_name);
else
LOG(WARNING) << "Unknown permission[" << permission_name << "].";
return true;
}
if (!permission->FromValue(permission_value)) {
if (error) {
*error = ErrorUtils::FormatErrorMessageUTF16(
errors::kInvalidPermission, permission_name);
return false;
}
LOG(WARNING) << "Parse permission failed.";
return true;
} else {
manifest_permissions->insert(std::move(permission));
return true;
}
}
} // namespace
namespace extensions {
// static
bool ManifestPermissionSet::ParseFromJSON(
const base::Value::List& permissions,
ManifestPermissionSet* manifest_permissions,
std::u16string* error,
std::vector<std::string>* unhandled_permissions) {
for (size_t i = 0; i < permissions.size(); ++i) {
const base::Value& value = permissions[i];
std::string permission_name;
const base::Value* permission_value = nullptr;
// Permission `value` should be a string or a single key dict.
if (value.is_string()) {
permission_name = value.GetString();
} else if (value.is_dict() && value.GetDict().size() == 1u) {
auto dict_iter = value.GetDict().begin();
permission_name = dict_iter->first;
permission_value = &dict_iter->second;
} else {
if (error) {
*error = ErrorUtils::FormatErrorMessageUTF16(errors::kInvalidPermission,
base::NumberToString(i));
return false;
}
LOG(WARNING) << "Permission is not a string or single key dict.";
continue;
}
if (!CreateManifestPermission(permission_name, permission_value,
manifest_permissions, error,
unhandled_permissions))
return false;
}
return true;
}
} // namespace extensions
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