/*
* This file is part of PKM (Persistent Knowledge Monitor).
* Copyright (c) 2020 Capgemini Group, Commissariat à l'énergie atomique et aux énergies alternatives,
* OW2, Sysgo AG, Technikon, Tree Technology, Universitat Politècnica de València.
*
* PKM 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.
*
* PKM 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 PKM. If not, see <https://www.gnu.org/licenses/>.
*/
/**
* Drop database
*
* @memberof PKM
* @instance
* @param {string} dbName - database name
*
* @return {Promise} a promise
*/
function drop_db(dbName)
{
return new Promise(function(resolve, reject)
{
const debug = this.debug;
const db = this.client.db(dbName);
// get the informations about current user
this.get_user(this.user_name).then((current_user) =>
{
// check that current user is administrator that will be able to drop a database
if(current_user.is_admin())
{
// drop all collections
this.drop_all_collections(dbName).then(() =>
{
if(debug)
{
console.log('All collections in Database \'' + dbName + '\' have been dropped');
}
// get all users that have a role in the database
this.get_users(dbName).then((users) =>
{
// revoke all users in the project
var update_user_promises = [];
users.forEach((user) =>
{
user.revoke(dbName);
update_user_promises.push(this.update_user(user));
});
Promise.all(update_user_promises).then(() =>
{
if(debug)
{
console.log('All users in Database \'' + dbName + '\' have been revoked');
}
// drop all roles in the database
this.drop_all_roles(dbName).then(() =>
{
if(debug)
{
console.log('All roles in Database \'' + dbName + '\' have been dropped');
}
// database has been dropped
if(debug)
{
console.log('Database \'' + dbName + '\' has been dropped');
}
resolve();
}).catch((err) =>
{
reject(this.Error(err));
});
}).catch((err) =>
{
reject(this.Error(err));
});
}).catch((err) =>
{
reject(this.Error(err));
});
}).catch((err) =>
{
reject(this.Error(err));
});
}
else
{
reject(this.Forbidden('User \'' + this.user_name + '\' can\'t drop the Database \'' + dbName + '\' because he\'s not an administrator'));
}
}).catch((err) =>
{
reject(this.Error(err));
});
}.bind(this));
}
exports.drop_db = drop_db;