/**
* @description MeshCentral database module
* @author Ylian Saint-Hilaire
* @copyright Intel Corporation 2018-2019
* @license Apache-2.0
* @version v0.0.2
*/
/*xjslint node: true */
/*xjslint plusplus: true */
/*xjslint maxlen: 256 */
/*jshint node: true */
/*jshint strict: false */
/*jshint esversion: 6 */
"use strict";
//
// Construct Meshcentral database object
//
// The default database is NeDB
// https://github.com/louischatriot/nedb
//
// Alternativety, MongoDB can be used
// https://www.mongodb.com/
// Just run with --mongodb [connectionstring], where the connection string is documented here: https://docs.mongodb.com/manual/reference/connection-string/
// The default collection is "meshcentral", but you can override it using --mongodbcol [collection]
//
module.exports.CreateDB = function (parent) {
var obj = {};
var Datastore = null;
var expireEventsSeconds = (60 * 60 * 24 * 20); // By default, expire events after 20 days. (Seconds * Minutes * Hours * Days)
var expirePowerEventsSeconds = (60 * 60 * 24 * 10); // By default, expire power events after 10 days. (Seconds * Minutes * Hours * Days)
var expireServerStatsSeconds = (60 * 60 * 24 * 30); // By default, expire power events after 30 days. (Seconds * Minutes * Hours * Days)
obj.path = require('path');
obj.parent = parent;
obj.identifier = null;
obj.dbKey = null;
// Read expiration time from configuration file
if (typeof obj.parent.args.dbexpire == 'object') {
if (typeof obj.parent.args.dbexpire.events == 'number') { expireEventsSeconds = obj.parent.args.dbexpire.events; }
if (typeof obj.parent.args.dbexpire.powerevents == 'number') { expirePowerEventsSeconds = obj.parent.args.dbexpire.powerevents; }
if (typeof obj.parent.args.dbexpire.statsevents == 'number') { expireServerStatsSeconds = obj.parent.args.dbexpire.statsevents; }
}
if (obj.parent.args.mongodb) {
// Use MongoDB
obj.databaseType = 2;
Datastore = require('mongojs');
var db = Datastore(obj.parent.args.mongodb);
var dbcollection = 'meshcentral';
if (obj.parent.args.mongodbcol) { dbcollection = obj.parent.args.mongodbcol; }
// Setup MongoDB main collection and indexes
obj.file = db.collection(dbcollection);
obj.file.getIndexes(function (err, indexes) {
// Check if we need to reset indexes
var indexesByName = {}, indexCount = 0;
for (var i in indexes) { indexesByName[indexes[i].name] = indexes[i]; indexCount++; }
if ((indexCount != 4) || (indexesByName['TypeDomainMesh1'] == null) || (indexesByName['Email1'] == null) || (indexesByName['Mesh1'] == null)) {
console.log('Resetting main indexes...');
obj.file.dropIndexes(function (err) {
obj.file.createIndex({ type: 1, domain: 1, meshid: 1 }, { sparse: 1, name: 'TypeDomainMesh1' }); // Speeds up GetAllTypeNoTypeField() and GetAllTypeNoTypeFieldMeshFiltered()
obj.file.createIndex({ email: 1 }, { sparse: 1, name: 'Email1' }); // Speeds up GetUserWithEmail() and GetUserWithVerifiedEmail()
obj.file.createIndex({ meshid: 1 }, { sparse: 1, name: 'Mesh1' }); // Speeds up RemoveMesh()
});
}
});
// Setup MongoDB events collection and indexes
obj.eventsfile = db.collection('events'); // Collection containing all events
obj.eventsfile.getIndexes(function (err, indexes) {
// Check if we need to reset indexes
var indexesByName = {}, indexCount = 0;
for (var i in indexes) { indexesByName[indexes[i].name] = indexes[i]; indexCount++; }
if ((indexCount != 5) || (indexesByName['Username1'] == null) || (indexesByName['DomainNodeTime1'] == null) || (indexesByName['IdsAndTime1'] == null) || (indexesByName['ExpireTime1'] == null)) {
// Reset all indexes
console.log('Resetting events indexes...');
obj.eventsfile.dropIndexes(function (err) {
obj.eventsfile.createIndex({ username: 1 }, { sparse: 1, name: 'Username1' });
obj.eventsfile.createIndex({ domain: 1, nodeid: 1, time: -1 }, { sparse: 1, name: 'DomainNodeTime1' });
obj.eventsfile.createIndex({ ids: 1, time: -1 }, { sparse: 1, name: 'IdsAndTime1' });
obj.eventsfile.createIndex({ "time": 1 }, { expireAfterSeconds: expireEventsSeconds, name: 'ExpireTime1' });
});
} else if (indexesByName['ExpireTime1'].expireAfterSeconds != expireEventsSeconds) {
// Reset the timeout index
console.log('Resetting events expire index...');
obj.eventsfile.dropIndex("ExpireTime1", function (err) {
obj.eventsfile.createIndex({ "time": 1 }, { expireAfterSeconds: expireEventsSeconds, name: 'ExpireTime1' });
});
}
});
// Setup MongoDB power events collection and indexes
obj.powerfile = db.collection('power'); // Collection containing all power events
obj.powerfile.getIndexes(function (err, indexes) {
// Check if we need to reset indexes
var indexesByName = {}, indexCount = 0;
for (var i in indexes) { indexesByName[indexes[i].name] = indexes[i]; indexCount++; }
if ((indexCount != 3) || (indexesByName['NodeIdAndTime1'] == null) || (indexesByName['ExpireTime1'] == null)) {
// Reset all indexes
console.log('Resetting power events indexes...');
obj.powerfile.dropIndexes(function (err) {
// Create all indexes
obj.powerfile.createIndex({ nodeid: 1, time: 1 }, { sparse: 1, name: 'NodeIdAndTime1' });
obj.powerfile.createIndex({ "time": 1 }, { expireAfterSeconds: expirePowerEventsSeconds, name: 'ExpireTime1' });
});
} else if (indexesByName['ExpireTime1'].expireAfterSeconds != expirePowerEventsSeconds) {
// Reset the timeout index
console.log('Resetting power events expire index...');
obj.powerfile.dropIndex("ExpireTime1", function (err) {
// Reset the expire power events index
obj.powerfile.createIndex({ "time": 1 }, { expireAfterSeconds: expirePowerEventsSeconds, name: 'ExpireTime1' });
});
}
});
// Setup MongoDB smbios collection, no indexes needed
obj.smbiosfile = db.collection('smbios'); // Collection containing all smbios information
// Setup MongoDB server stats collection
obj.serverstatsfile = db.collection('serverstats'); // Collection of server stats
obj.serverstatsfile.getIndexes(function (err, indexes) {
// Check if we need to reset indexes
var indexesByName = {}, indexCount = 0;
for (var i in indexes) { indexesByName[indexes[i].name] = indexes[i]; indexCount++; }
if ((indexCount != 3) || (indexesByName['ExpireTime1'] == null)) {
// Reset all indexes
console.log('Resetting server stats indexes...');
obj.serverstatsfile.dropIndexes(function (err) {
// Create all indexes
obj.serverstatsfile.createIndex({ "time": 1 }, { expireAfterSeconds: expireServerStatsSeconds, name: 'ExpireTime1' });
obj.serverstatsfile.createIndex({ "expire": 1 }, { expireAfterSeconds: 0, name: 'ExpireTime2' }); // Auto-expire events
});
} else if (indexesByName['ExpireTime1'].expireAfterSeconds != expireServerStatsSeconds) {
// Reset the timeout index
console.log('Resetting server stats expire index...');
obj.serverstatsfile.dropIndex("ExpireTime1", function (err) {
// Reset the expire server stats index
obj.serverstatsfile.createIndex({ "time": 1 }, { expireAfterSeconds: expireServerStatsSeconds, name: 'ExpireTime1' });
});
}
});
} else {
// Use NeDB (The default)
obj.databaseType = 1;
Datastore = require('nedb');
var datastoreOptions = { filename: obj.parent.getConfigFilePath('meshcentral.db'), autoload: true };
// If a DB encryption key is provided, perform database encryption
if ((typeof obj.parent.args.dbencryptkey == 'string') && (obj.parent.args.dbencryptkey.length != 0)) {
// Hash the database password into a AES256 key and setup encryption and decryption.
obj.dbKey = obj.parent.crypto.createHash('sha384').update(obj.parent.args.dbencryptkey).digest("raw").slice(0, 32);
datastoreOptions.afterSerialization = function (plaintext) {
const iv = obj.parent.crypto.randomBytes(16);
const aes = obj.parent.crypto.createCipheriv('aes-256-cbc', obj.dbKey, iv);
var ciphertext = aes.update(plaintext);
ciphertext = Buffer.concat([iv, ciphertext, aes.final()]);
return ciphertext.toString('base64');
}
datastoreOptions.beforeDeserialization = function (ciphertext) {
const ciphertextBytes = Buffer.from(ciphertext, 'base64');
const iv = ciphertextBytes.slice(0, 16);
const data = ciphertextBytes.slice(16);
const aes = obj.parent.crypto.createDecipheriv('aes-256-cbc', obj.dbKey, iv);
var plaintextBytes = Buffer.from(aes.update(data));
plaintextBytes = Buffer.concat([plaintextBytes, aes.final()]);
return plaintextBytes.toString();
}
}
// Start NeDB main collection and setup indexes
obj.file = new Datastore(datastoreOptions);
obj.file.persistence.setAutocompactionInterval(36000);
obj.file.ensureIndex({ fieldName: 'type' });
obj.file.ensureIndex({ fieldName: 'domain' });
obj.file.ensureIndex({ fieldName: 'meshid', sparse: true });
obj.file.ensureIndex({ fieldName: 'nodeid', sparse: true });
obj.file.ensureIndex({ fieldName: 'email', sparse: true });
// Setup the events collection and setup indexes
obj.eventsfile = new Datastore({ filename: obj.parent.getConfigFilePath('meshcentral-events.db'), autoload: true });
obj.eventsfile.persistence.setAutocompactionInterval(36000);
obj.eventsfile.ensureIndex({ fieldName: 'ids' }); // TODO: Not sure if this is a good index, this is a array field.
obj.eventsfile.ensureIndex({ fieldName: 'nodeid', sparse: true });
obj.eventsfile.ensureIndex({ fieldName: 'time', expireAfterSeconds: 60 * 60 * 24 * 20 }); // Limit the power event log to 20 days (Seconds * Minutes * Hours * Days)
// Setup the power collection and setup indexes
obj.powerfile = new Datastore({ filename: obj.parent.getConfigFilePath('meshcentral-power.db'), autoload: true });
obj.powerfile.persistence.setAutocompactionInterval(36000);
obj.powerfile.ensureIndex({ fieldName: 'nodeid' });
obj.powerfile.ensureIndex({ fieldName: 'time', expireAfterSeconds: 60 * 60 * 24 * 10 }); // Limit the power event log to 10 days (Seconds * Minutes * Hours * Days)
// Setup the SMBIOS collection
obj.smbiosfile = new Datastore({ filename: obj.parent.getConfigFilePath('meshcentral-smbios.db'), autoload: true });
// Setup the server stats collection and setup indexes
obj.serverstatsfile = new Datastore({ filename: obj.parent.getConfigFilePath('meshcentral-stats.db'), autoload: true });
obj.serverstatsfile.persistence.setAutocompactionInterval(36000);
obj.serverstatsfile.ensureIndex({ fieldName: 'time', expireAfterSeconds: 60 * 60 * 24 * 30 }); // Limit the server stats log to 30 days (Seconds * Minutes * Hours * Days)
obj.serverstatsfile.ensureIndex({ fieldName: 'expire', expireAfterSeconds: 0 }); // Auto-expire events
}
obj.SetupDatabase = function (func) {
// Check if the database unique identifier is present
// This is used to check that in server peering mode, everyone is using the same database.
obj.Get('DatabaseIdentifier', function (err, docs) {
if ((docs.length == 1) && (docs[0].value != null)) {
obj.identifier = docs[0].value;
} else {
obj.identifier = Buffer.from(require('crypto').randomBytes(48), 'binary').toString('hex');
obj.Set({ _id: 'DatabaseIdentifier', value: obj.identifier });
}
});
// Load database schema version and check if we need to update
obj.Get('SchemaVersion', function (err, docs) {
var ver = 0;
if (docs && docs.length == 1) { ver = docs[0].value; }
if (ver == 1) { console.log('This is an unsupported beta 1 database, delete it to create a new one.'); process.exit(0); }
// TODO: Any schema upgrades here...
obj.Set({ _id: 'SchemaVersion', value: 2 });
func(ver);
});
};
obj.cleanup = function (func) {
// TODO: Remove all mesh links to invalid users
// TODO: Remove all meshes that dont have any links
// Remove all events, power events and SMBIOS data from the main collection. They are all in seperate collections now.
obj.file.remove({ type: 'event' }, { multi: true });
obj.file.remove({ type: 'power' }, { multi: true });
obj.file.remove({ type: 'smbios' }, { multi: true });
// Remove all objects that have a "meshid" that no longer points to a valid mesh.
obj.GetAllType('mesh', function (err, docs) {
var meshlist = [];
if ((err == null) && (docs.length > 0)) { for (var i in docs) { meshlist.push(docs[i]._id); } }
obj.file.remove({ meshid: { $exists: true, $nin: meshlist } }, { multi: true });
// Fix all of the creating & login to ticks by seconds, not milliseconds.
obj.GetAllType('user', function (err, docs) {
if (err == null && docs.length > 0) {
for (var i in docs) {
var fixed = false;
// Fix account creation
if (docs[i].creation) {
if (docs[i].creation > 1300000000000) { docs[i].creation = Math.floor(docs[i].creation / 1000); fixed = true; }
if ((docs[i].creation % 1) != 0) { docs[i].creation = Math.floor(docs[i].creation); fixed = true; }
}
// Fix last account login
if (docs[i].login) {
if (docs[i].login > 1300000000000) { docs[i].login = Math.floor(docs[i].login / 1000); fixed = true; }
if ((docs[i].login % 1) != 0) { docs[i].login = Math.floor(docs[i].login); fixed = true; }
}
// Fix last password change
if (docs[i].passchange) {
if (docs[i].passchange > 1300000000000) { docs[i].passchange = Math.floor(docs[i].passchange / 1000); fixed = true; }
if ((docs[i].passchange % 1) != 0) { docs[i].passchange = Math.floor(docs[i].passchange); fixed = true; }
}
// Fix subscriptions
if (docs[i].subscriptions != null) { delete docs[i].subscriptions; fixed = true; }
// Save the user if needed
if (fixed) { obj.Set(docs[i]); }
// We are done
if (func) { func(); }
}
}
});
});
};
// Database actions on the main collection
obj.Set = function (data, func) { obj.file.update({ _id: data._id }, data, { upsert: true }, func); };
obj.Get = function (id, func) { obj.file.find({ _id: id }, func); };
obj.GetAll = function (func) { obj.file.find({}, func); };
obj.GetAllTypeNoTypeField = function (type, domain, func) { obj.file.find({ type: type, domain: domain }, { type: 0 }, func); };
obj.GetAllTypeNoTypeFieldMeshFiltered = function (meshes, domain, type, id, func) { var x = { type: type, domain: domain, meshid: { $in: meshes } }; if (id) { x._id = id; } obj.file.find(x, { type: 0 }, func); };
obj.GetAllType = function (type, func) { obj.file.find({ type: type }, func); };
obj.GetAllIdsOfType = function (ids, domain, type, func) { obj.file.find({ type: type, domain: domain, _id: { $in: ids } }, func); };
obj.GetUserWithEmail = function (domain, email, func) { obj.file.find({ type: 'user', domain: domain, email: email }, { type: 0 }, func); };
obj.GetUserWithVerifiedEmail = function (domain, email, func) { obj.file.find({ type: 'user', domain: domain, email: email, emailVerified: true }, { type: 0 }, func); };
obj.Remove = function (id) { obj.file.remove({ _id: id }); };
obj.RemoveAll = function (func) { obj.file.remove({}, { multi: true }, func); };
obj.RemoveAllOfType = function (type, func) { obj.file.remove({ type: type }, { multi: true }, func); };
obj.InsertMany = function (data, func) { obj.file.insert(data, func); };
obj.RemoveMeshDocuments = function (id) { obj.file.remove({ meshid: id }, { multi: true }); obj.file.remove({ _id: 'nt' + id }); };
obj.MakeSiteAdmin = function (username, domain) { obj.Get('user/' + domain + '/' + username, function (err, docs) { if (docs.length == 1) { docs[0].siteadmin = 0xFFFFFFFF; obj.Set(docs[0]); } }); };
obj.DeleteDomain = function (domain, func) { obj.file.remove({ domain: domain }, { multi: true }, func); };
obj.SetUser = function (user) { var u = Clone(user); if (u.subscriptions) { delete u.subscriptions; } obj.Set(u); };
obj.dispose = function () { for (var x in obj) { if (obj[x].close) { obj[x].close(); } delete obj[x]; } };
obj.getLocalAmtNodes = function (func) { obj.file.find({ type: 'node', host: { $exists: true, $ne: null }, intelamt: { $exists: true } }, func); };
obj.getAmtUuidNode = function (meshid, uuid, func) { obj.file.find({ type: 'node', meshid: meshid, 'intelamt.uuid': uuid }, func); };
obj.isMaxType = function (max, type, domainid, func) { if (max == null) { func(false); } else { obj.file.count({ type: type, domain: domainid }, function (err, count) { func((err != null) || (count > max)); }); } }
// Database actions on the events collection
obj.GetAllEvents = function (func) { obj.eventsfile.find({}, func); };
obj.StoreEvent = function (event) { obj.eventsfile.insert(event); };
obj.GetEvents = function (ids, domain, func) { if (obj.databaseType == 1) { obj.eventsfile.find({ domain: domain, ids: { $in: ids } }, { _id: 0, domain: 0, ids: 0, node: 0 }).sort({ time: -1 }).exec(func); } else { obj.eventsfile.find({ domain: domain, ids: { $in: ids } }, { type: 0, _id: 0, domain: 0, ids: 0, node: 0 }).sort({ time: -1 }, func); } };
obj.GetEventsWithLimit = function (ids, domain, limit, func) { if (obj.databaseType == 1) { obj.eventsfile.find({ domain: domain, ids: { $in: ids } }, { _id: 0, domain: 0, ids: 0, node: 0 }).sort({ time: -1 }).limit(limit).exec(func); } else { obj.eventsfile.find({ domain: domain, ids: { $in: ids } }, { type: 0, _id: 0, domain: 0, ids: 0, node: 0 }).sort({ time: -1 }).limit(limit, func); } };
obj.GetUserEvents = function (ids, domain, username, func) {
if (obj.databaseType == 1) {
obj.eventsfile.find({ domain: domain, $or: [{ ids: { $in: ids } }, { username: username }] }, { type: 0, _id: 0, domain: 0, ids: 0, node: 0 }).sort({ time: -1 }).exec(func);
} else {
obj.eventsfile.find({ domain: domain, $or: [{ ids: { $in: ids } }, { username: username }] }, { type: 0, _id: 0, domain: 0, ids: 0, node: 0 }).sort({ time: -1 }, func);
}
};
obj.GetUserEventsWithLimit = function (ids, domain, username, limit, func) {
if (obj.databaseType == 1) {
obj.eventsfile.find({ domain: domain, $or: [{ ids: { $in: ids } }, { username: username }] }, { type: 0, _id: 0, domain: 0, ids: 0, node: 0 }).sort({ time: -1 }).limit(limit).exec(func);
} else {
obj.eventsfile.find({ domain: domain, $or: [{ ids: { $in: ids } }, { username: username }] }, { type: 0, _id: 0, domain: 0, ids: 0, node: 0 }).sort({ time: -1 }).limit(limit, func);
}
};
obj.GetNodeEventsWithLimit = function (nodeid, domain, limit, func) { if (obj.databaseType == 1) { obj.eventsfile.find({ domain: domain, nodeid: nodeid }, { type: 0, etype: 0, _id: 0, domain: 0, ids: 0, node: 0, nodeid: 0 }).sort({ time: -1 }).limit(limit).exec(func); } else { obj.eventsfile.find({ domain: domain, nodeid: nodeid }, { type: 0, etype: 0, _id: 0, domain: 0, ids: 0, node: 0, nodeid: 0 }).sort({ time: -1 }).limit(limit, func); } };
obj.RemoveAllEvents = function (domain) { obj.eventsfile.remove({ domain: domain }, { multi: true }); };
obj.RemoveAllNodeEvents = function (domain, nodeid) { obj.eventsfile.remove({ domain: domain, nodeid: nodeid }, { multi: true }); };
// Database actions on the power collection
obj.getAllPower = function (func) { obj.powerfile.find({}, func); };
obj.storePowerEvent = function (event, multiServer, func) { if (multiServer != null) { event.server = multiServer.serverid; } obj.powerfile.insert(event, func); };
obj.getPowerTimeline = function (nodeid, func) { if (obj.databaseType == 1) { obj.powerfile.find({ nodeid: { $in: ['*', nodeid] } }, { _id: 0, nodeid: 0, s: 0 }).sort({ time: 1 }).exec(func); } else { obj.powerfile.find({ nodeid: { $in: ['*', nodeid] } }, { _id: 0, nodeid: 0, s: 0 }).sort({ time: 1 }, func); } };
obj.removeAllPowerEvents = function () { obj.powerfile.remove({}, { multi: true }); };
obj.removeAllPowerEventsForNode = function (nodeid) { obj.powerfile.remove({ nodeid: nodeid }, { multi: true }); };
// Database actions on the SMBIOS collection
obj.SetSMBIOS = function (smbios, func) { obj.smbiosfile.update({ _id: smbios._id }, smbios, { upsert: true }, func); };
obj.RemoveSMBIOS = function (id) { obj.smbiosfile.remove({ _id: id }); };
obj.GetSMBIOS = function (id, func) { obj.smbiosfile.find({ _id: id }, func); };
// Database actions on the Server Stats collection
obj.SetServerStats = function (data, func) { obj.serverstatsfile.insert(data, func); };
obj.GetServerStats = function (hours, func) { var t = new Date(); t.setTime(t.getTime() - (60 * 60 * 1000 * hours)); obj.serverstatsfile.find({ time: { $gt: t } }, { _id: 0, cpu: 0 }, func); };
// Read a configuration file from the database
obj.getConfigFile = function (path, func) { obj.Get('cfile/' + path, func); }
// Write a configuration file to the database
obj.setConfigFile = function (path, data, func) { obj.Set({ _id: 'cfile/' + path, type: 'cfile', data: data.toString('base64') }, func); }
// List all configuration files
obj.listConfigFiles = function (func) { obj.file.find({ type: 'cfile' }).sort({ _id: 1 }).exec(func); }
// Get all configuration files
obj.getAllConfigFiles = function (password, func) {
obj.file.find({ type: 'cfile' }, function (err, docs) {
if (err != null) { func(null); return; }
var r = null;
for (var i = 0; i < docs.length; i++) {
var name = docs[i]._id.split('/')[1];
var data = obj.decryptData(password, docs[i].data);
if (data != null) { if (r == null) { r = {}; } r[name] = data; }
}
func(r);
});
}
// Get encryption key
obj.getEncryptDataKey = function (password) {
if (typeof password != 'string') return null;
return obj.parent.crypto.createHash('sha384').update(password).digest("raw").slice(0, 32);
}
// Encrypt data
obj.encryptData = function (password, plaintext) {
var key = obj.getEncryptDataKey(password);
if (key == null) return null;
const iv = obj.parent.crypto.randomBytes(16);
const aes = obj.parent.crypto.createCipheriv('aes-256-cbc', key, iv);
var ciphertext = aes.update(plaintext);
ciphertext = Buffer.concat([iv, ciphertext, aes.final()]);
return ciphertext.toString('base64');
}
// Decrypt data
obj.decryptData = function (password, ciphertext) {
try {
var key = obj.getEncryptDataKey(password);
if (key == null) return null;
const ciphertextBytes = Buffer.from(ciphertext, 'base64');
const iv = ciphertextBytes.slice(0, 16);
const data = ciphertextBytes.slice(16);
const aes = obj.parent.crypto.createDecipheriv('aes-256-cbc', key, iv);
var plaintextBytes = Buffer.from(aes.update(data));
plaintextBytes = Buffer.concat([plaintextBytes, aes.final()]);
return plaintextBytes;
} catch (ex) { return null; }
}
// Get the number of records in the database for various types, this is the slow NeDB way.
// WARNING: This is a terrible query for database performance. Only do this when needed. This query will look at almost every document in the database.
obj.getStats = function (func) {
if (obj.databaseType == 2) {
// MongoDB version
obj.file.aggregate([{ "$group": { _id: "$type", count: { $sum: 1 } } }], function (err, docs) {
var counters = {}, totalCount = 0;
for (var i in docs) { if (docs[i]._id != null) { counters[docs[i]._id] = docs[i].count; totalCount += docs[i].count; } }
func({ nodes: counters['node'], meshes: counters['mesh'], users: counters['user'], total: totalCount });
})
} else {
// NeDB version
obj.file.count({ type: 'node' }, function (err, nodeCount) {
obj.file.count({ type: 'mesh' }, function (err, meshCount) {
obj.file.count({ type: 'user' }, function (err, userCount) {
obj.file.count({}, function (err, totalCount) {
func({ nodes: nodeCount, meshes: meshCount, users: userCount, total: totalCount });
});
});
});
});
}
}
// This is used to rate limit a number of operation per day. Returns a startValue each new days, but you can substract it and save the value in the db.
obj.getValueOfTheDay = function (id, startValue, func) { obj.Get(id, function (err, docs) { var date = new Date(), t = date.toLocaleDateString(); if (docs.length == 1) { var r = docs[0]; if (r.day == t) { func({ _id: id, value: r.value, day: t }); return; } } func({ _id: id, value: startValue, day: t }); }); };
function Clone(v) { return JSON.parse(JSON.stringify(v)); }
return obj;
};