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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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/auth/user_management_commands_parser.h"
#include <algorithm>
#include <string>
#include <vector>
#include "mongo/base/status.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/address_restriction.h"
#include "mongo/db/auth/authorization_manager.h"
#include "mongo/db/auth/privilege.h"
#include "mongo/db/auth/privilege_parser.h"
#include "mongo/db/auth/user_document_parser.h"
#include "mongo/db/auth/user_name.h"
#include "mongo/db/commands.h"
#include "mongo/db/jsobj.h"
#include "mongo/idl/command_generic_argument.h"
#include "mongo/stdx/unordered_set.h"
#include "mongo/util/str.h"
namespace mongo {
namespace auth {
using std::vector;
Status _checkNoExtraFields(const BSONObj& cmdObj,
StringData cmdName,
const stdx::unordered_set<std::string>& validFieldNames) {
// Iterate through all fields in command object and make sure there are no unexpected
// ones.
for (BSONObjIterator iter(cmdObj); iter.more(); iter.next()) {
StringData fieldName = (*iter).fieldNameStringData();
if (!isGenericArgument(fieldName) && !validFieldNames.count(fieldName.toString())) {
return Status(ErrorCodes::BadValue,
str::stream() << "\"" << fieldName
<< "\" is not "
"a valid argument to "
<< cmdName);
}
}
return Status::OK();
}
// Extracts a UserName or RoleName object from a BSONElement.
template <typename Name>
Status _parseNameFromBSONElement(const BSONElement& element,
StringData dbname,
StringData nameFieldName,
StringData sourceFieldName,
Name* parsedName) {
if (element.type() == String) {
*parsedName = Name(element.String(), dbname);
} else if (element.type() == Object) {
BSONObj obj = element.Obj();
std::string name;
std::string source;
Status status = bsonExtractStringField(obj, nameFieldName, &name);
if (!status.isOK()) {
return status;
}
status = bsonExtractStringField(obj, sourceFieldName, &source);
if (!status.isOK()) {
return status;
}
*parsedName = Name(name, source);
} else {
return Status(ErrorCodes::BadValue,
"User and role names must be either strings or objects");
}
return Status::OK();
}
// Extracts UserName or RoleName objects from a BSONArray of role/user names.
template <typename Name>
Status _parseNamesFromBSONArray(const BSONArray& array,
StringData dbname,
StringData nameFieldName,
StringData sourceFieldName,
std::vector<Name>* parsedNames) {
for (BSONObjIterator it(array); it.more(); it.next()) {
BSONElement element = *it;
Name name;
Status status =
_parseNameFromBSONElement(element, dbname, nameFieldName, sourceFieldName, &name);
if (!status.isOK()) {
return status;
}
parsedNames->push_back(name);
}
return Status::OK();
}
Status parseUserNamesFromBSONArray(const BSONArray& usersArray,
StringData dbname,
std::vector<UserName>* parsedUserNames) {
return _parseNamesFromBSONArray(usersArray,
dbname,
AuthorizationManager::USER_NAME_FIELD_NAME,
AuthorizationManager::USER_DB_FIELD_NAME,
parsedUserNames);
}
Status parseRoleNamesFromBSONArray(const BSONArray& rolesArray,
StringData dbname,
std::vector<RoleName>* parsedRoleNames) {
return _parseNamesFromBSONArray(rolesArray,
dbname,
AuthorizationManager::ROLE_NAME_FIELD_NAME,
AuthorizationManager::ROLE_DB_FIELD_NAME,
parsedRoleNames);
}
/*
* Validates that the given privilege BSONArray is valid.
* If parsedPrivileges is not NULL, adds to it the privileges parsed out of the input BSONArray.
*/
Status parseAndValidatePrivilegeArray(const BSONArray& privileges,
PrivilegeVector* parsedPrivileges) {
for (BSONObjIterator it(privileges); it.more(); it.next()) {
BSONElement element = *it;
if (element.type() != Object) {
return Status(ErrorCodes::FailedToParse,
"Elements in privilege arrays must be objects");
}
ParsedPrivilege parsedPrivilege;
std::string errmsg;
if (!parsedPrivilege.parseBSON(element.Obj(), &errmsg)) {
return Status(ErrorCodes::FailedToParse, errmsg);
}
if (!parsedPrivilege.isValid(&errmsg)) {
return Status(ErrorCodes::FailedToParse, errmsg);
}
Privilege privilege;
std::vector<std::string> unrecognizedActions;
Status status = ParsedPrivilege::parsedPrivilegeToPrivilege(
parsedPrivilege, &privilege, &unrecognizedActions);
if (!status.isOK()) {
return status;
}
if (unrecognizedActions.size()) {
std::string unrecognizedActionsString;
str::joinStringDelim(unrecognizedActions, &unrecognizedActionsString, ',');
return Status(ErrorCodes::FailedToParse,
str::stream() << "Unrecognized action privilege strings: "
<< unrecognizedActionsString);
}
parsedPrivileges->push_back(privilege);
}
return Status::OK();
}
} // namespace auth
} // namespace mongo
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