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/**
* Copyright (C) 2016 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/commands/feature_compatibility_version_command_parser.h"
#include "mongo/base/status_with.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/db/commands.h"
#include "mongo/db/query/query_request.h"
#include "mongo/util/version.h"
namespace mongo {
constexpr StringData FeatureCompatibilityVersionCommandParser::kVersion34;
constexpr StringData FeatureCompatibilityVersionCommandParser::kVersion36;
constexpr StringData FeatureCompatibilityVersionCommandParser::kVersion40;
constexpr StringData FeatureCompatibilityVersionCommandParser::kVersionUpgradingTo36;
constexpr StringData FeatureCompatibilityVersionCommandParser::kVersionDowngradingTo34;
constexpr StringData FeatureCompatibilityVersionCommandParser::kVersionUpgradingTo40;
constexpr StringData FeatureCompatibilityVersionCommandParser::kVersionDowngradingTo36;
constexpr StringData FeatureCompatibilityVersionCommandParser::kVersionUnset;
StatusWith<std::string> FeatureCompatibilityVersionCommandParser::extractVersionFromCommand(
StringData commandName, const BSONObj& cmdObj) {
if (cmdObj.firstElementFieldName() != commandName) {
return {ErrorCodes::InternalError,
str::stream() << "Expected to find a " << commandName << " command, but found "
<< cmdObj};
}
const auto versionElem = cmdObj.firstElement();
if (versionElem.type() != BSONType::String) {
return {ErrorCodes::TypeMismatch,
str::stream() << "Command argument must be of type "
"String, but was of type "
<< typeName(versionElem.type())
<< " in: "
<< cmdObj
<< ". See "
<< feature_compatibility_version::kDochubLink
<< "."};
}
// Ensure that the command does not contain any unrecognized parameters
for (const auto& cmdElem : cmdObj) {
const auto fieldName = cmdElem.fieldNameStringData();
if (fieldName == commandName || CommandHelpers::isGenericArgument(fieldName)) {
continue;
}
uasserted(ErrorCodes::InvalidOptions,
str::stream() << "Unrecognized field found " << cmdElem.fieldNameStringData()
<< " in "
<< cmdObj
<< ". See "
<< feature_compatibility_version::kDochubLink
<< ".");
}
const std::string version = versionElem.String();
if (version != FeatureCompatibilityVersionCommandParser::kVersion40 &&
version != FeatureCompatibilityVersionCommandParser::kVersion36 &&
version != FeatureCompatibilityVersionCommandParser::kVersion34) {
return {ErrorCodes::BadValue,
str::stream() << "Invalid command argument. Expected '"
<< FeatureCompatibilityVersionCommandParser::kVersion40
<< "', '"
<< FeatureCompatibilityVersionCommandParser::kVersion36
<< "' or '"
<< FeatureCompatibilityVersionCommandParser::kVersion34
<< "', found "
<< version
<< " in: "
<< cmdObj
<< ". See "
<< feature_compatibility_version::kDochubLink
<< "."};
}
return version;
}
} // namespace mongo
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