uptime-kuma/server/util-server.js

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const tcpp = require("tcp-ping");
const ping = require("@louislam/ping");
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const { R } = require("redbean-node");
const { log, genSecret } = require("../src/util");
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const passwordHash = require("./password-hash");
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const { Resolver } = require("dns");
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const childProcess = require("child_process");
const iconv = require("iconv-lite");
const chardet = require("chardet");
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const mqtt = require("mqtt");
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const chroma = require("chroma-js");
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const { badgeConstants } = require("./config");
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const mssql = require("mssql");
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const { Client } = require("pg");
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const postgresConParse = require("pg-connection-string").parse;
const mysql = require("mysql2");
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const { MongoClient } = require("mongodb");
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const { NtlmClient } = require("axios-ntlm");
const { Settings } = require("./settings");
const grpc = require("@grpc/grpc-js");
const protojs = require("protobufjs");
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const radiusClient = require("node-radius-client");
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const redis = require("redis");
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const {
dictionaries: {
rfc2865: { file, attributes },
},
} = require("node-radius-utils");
const dayjs = require("dayjs");
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const isWindows = process.platform === /^win/.test(process.platform);
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/**
* Init or reset JWT secret
* @returns {Promise<Bean>}
*/
exports.initJWTSecret = async () => {
let jwtSecretBean = await R.findOne("setting", " `key` = ? ", [
"jwtSecret",
]);
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if (!jwtSecretBean) {
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jwtSecretBean = R.dispense("setting");
jwtSecretBean.key = "jwtSecret";
}
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jwtSecretBean.value = passwordHash.generate(genSecret());
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await R.store(jwtSecretBean);
return jwtSecretBean;
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};
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/**
* Send TCP request to specified hostname and port
* @param {string} hostname Hostname / address of machine
* @param {number} port TCP port to test
* @returns {Promise<number>} Maximum time in ms rounded to nearest integer
*/
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exports.tcping = function (hostname, port) {
return new Promise((resolve, reject) => {
tcpp.ping({
address: hostname,
port: port,
attempts: 1,
}, function (err, data) {
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if (err) {
reject(err);
}
if (data.results.length >= 1 && data.results[0].err) {
reject(data.results[0].err);
}
resolve(Math.round(data.max));
});
});
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};
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/**
* Ping the specified machine
* @param {string} hostname Hostname / address of machine
* @returns {Promise<number>} Time for ping in ms rounded to nearest integer
*/
exports.ping = async (hostname) => {
try {
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return await exports.pingAsync(hostname);
} catch (e) {
// If the host cannot be resolved, try again with ipv6
if (e.message.includes("service not known")) {
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return await exports.pingAsync(hostname, true);
} else {
throw e;
}
}
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};
/**
* Ping the specified machine
* @param {string} hostname Hostname / address of machine to ping
* @param {boolean} ipv6 Should IPv6 be used?
* @returns {Promise<number>} Time for ping in ms rounded to nearest integer
*/
exports.pingAsync = function (hostname, ipv6 = false) {
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return new Promise((resolve, reject) => {
ping.promise.probe(hostname, {
v6: ipv6,
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min_reply: 1,
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deadline: 10,
}).then((res) => {
// If ping failed, it will set field to unknown
if (res.alive) {
resolve(res.time);
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} else {
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if (isWindows) {
reject(new Error(exports.convertToUTF8(res.output)));
} else {
reject(new Error(res.output));
}
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}
}).catch((err) => {
reject(err);
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});
});
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};
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/**
* MQTT Monitor
* @param {string} hostname Hostname / address of machine to test
* @param {string} topic MQTT topic
* @param {string} okMessage Expected result
* @param {Object} [options={}] MQTT options. Contains port, username,
* password and interval (interval defaults to 20)
* @returns {Promise<string>}
*/
exports.mqttAsync = function (hostname, topic, okMessage, options = {}) {
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return new Promise((resolve, reject) => {
const { port, username, password, interval = 20 } = options;
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// Adds MQTT protocol to the hostname if not already present
if (!/^(?:http|mqtt|ws)s?:\/\//.test(hostname)) {
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hostname = "mqtt://" + hostname;
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}
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const timeoutID = setTimeout(() => {
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log.debug("mqtt", "MQTT timeout triggered");
client.end();
reject(new Error("Timeout"));
}, interval * 1000 * 0.8);
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const mqttUrl = `${hostname}:${port}`;
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log.debug("mqtt", `MQTT connecting to ${mqttUrl}`);
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let client = mqtt.connect(mqttUrl, {
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username,
password
});
client.on("connect", () => {
log.debug("mqtt", "MQTT connected");
try {
log.debug("mqtt", "MQTT subscribe topic");
client.subscribe(topic);
} catch (e) {
client.end();
clearTimeout(timeoutID);
reject(new Error("Cannot subscribe topic"));
}
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});
client.on("error", (error) => {
client.end();
clearTimeout(timeoutID);
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reject(error);
});
client.on("message", (messageTopic, message) => {
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if (messageTopic === topic) {
client.end();
clearTimeout(timeoutID);
if (okMessage != null && okMessage !== "" && message.toString() !== okMessage) {
reject(new Error(`Message Mismatch - Topic: ${messageTopic}; Message: ${message.toString()}`));
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} else {
resolve(`Topic: ${messageTopic}; Message: ${message.toString()}`);
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}
}
});
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});
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};
/**
* Use NTLM Auth for a http request.
* @param {Object} options The http request options
* @param {Object} ntlmOptions The auth options
* @returns {Promise<(string[]|Object[]|Object)>}
*/
exports.httpNtlm = function (options, ntlmOptions) {
return new Promise((resolve, reject) => {
let client = NtlmClient(ntlmOptions);
client(options)
.then((resp) => {
resolve(resp);
})
.catch((err) => {
reject(err);
});
});
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};
/**
* Resolves a given record using the specified DNS server
* @param {string} hostname The hostname of the record to lookup
* @param {string} resolverServer The DNS server to use
* @param {string} resolverPort Port the DNS server is listening on
* @param {string} rrtype The type of record to request
* @returns {Promise<(string[]|Object[]|Object)>}
*/
exports.dnsResolve = function (hostname, resolverServer, resolverPort, rrtype) {
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const resolver = new Resolver();
// Remove brackets from IPv6 addresses so we can re-add them to
// prevent issues with ::1:5300 (::1 port 5300)
resolverServer = resolverServer.replace("[", "").replace("]", "");
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resolver.setServers([ `[${resolverServer}]:${resolverPort}` ]);
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return new Promise((resolve, reject) => {
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if (rrtype === "PTR") {
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resolver.reverse(hostname, (err, records) => {
if (err) {
reject(err);
} else {
resolve(records);
}
});
} else {
resolver.resolve(hostname, rrtype, (err, records) => {
if (err) {
reject(err);
} else {
resolve(records);
}
});
}
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});
};
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/**
* Run a query on SQL Server
* @param {string} connectionString The database connection string
* @param {string} query The query to validate the database with
* @returns {Promise<(string[]|Object[]|Object)>}
*/
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exports.mssqlQuery = async function (connectionString, query) {
let pool;
try {
pool = new mssql.ConnectionPool(connectionString);
await pool.connect();
await pool.request().query(query);
pool.close();
} catch (e) {
if (pool) {
pool.close();
}
throw e;
}
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};
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/**
* Run a query on Postgres
* @param {string} connectionString The database connection string
* @param {string} query The query to validate the database with
* @returns {Promise<(string[]|Object[]|Object)>}
*/
exports.postgresQuery = function (connectionString, query) {
return new Promise((resolve, reject) => {
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const config = postgresConParse(connectionString);
if (config.password === "") {
// See https://github.com/brianc/node-postgres/issues/1927
return reject(new Error("Password is undefined."));
}
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const client = new Client({ connectionString });
client.connect((err) => {
if (err) {
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reject(err);
client.end();
} else {
// Connected here
client.query(query, (err, res) => {
if (err) {
reject(err);
} else {
resolve(res);
}
client.end();
});
}
});
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});
};
/**
* Run a query on MySQL/MariaDB
* @param {string} connectionString The database connection string
* @param {string} query The query to validate the database with
* @returns {Promise<(string[]|Object[]|Object)>}
*/
exports.mysqlQuery = function (connectionString, query) {
return new Promise((resolve, reject) => {
const connection = mysql.createConnection(connectionString);
connection.promise().query(query)
.then(res => {
resolve(res);
})
.catch(err => {
reject(err);
})
.finally(() => {
connection.end();
});
});
};
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/**
* Connect to and Ping a MongoDB database
* @param {string} connectionString The database connection string
* @returns {Promise<(string[]|Object[]|Object)>}
*/
exports.mongodbPing = async function (connectionString) {
let client = await MongoClient.connect(connectionString);
let dbPing = await client.db().command({ ping: 1 });
await client.close();
if (dbPing["ok"] === 1) {
return "UP";
} else {
throw Error("failed");
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}
};
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/**
* Query radius server
* @param {string} hostname Hostname of radius server
* @param {string} username Username to use
* @param {string} password Password to use
* @param {string} calledStationId ID of called station
* @param {string} callingStationId ID of calling station
* @param {string} secret Secret to use
* @param {number} [port=1812] Port to contact radius server on
* @returns {Promise<any>}
*/
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exports.radius = function (
hostname,
username,
password,
calledStationId,
callingStationId,
secret,
port = 1812,
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) {
const client = new radiusClient({
host: hostname,
hostPort: port,
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dictionaries: [ file ],
});
return client.accessRequest({
secret: secret,
attributes: [
[ attributes.USER_NAME, username ],
[ attributes.USER_PASSWORD, password ],
[ attributes.CALLING_STATION_ID, callingStationId ],
[ attributes.CALLED_STATION_ID, calledStationId ],
],
});
};
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/**
* Redis server ping
* @param {string} dsn The redis connection string
*/
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exports.redisPingAsync = function (dsn) {
return new Promise((resolve, reject) => {
const client = redis.createClient({
url: dsn,
});
client.on("error", (err) => {
reject(err);
});
client.connect().then(() => {
client.ping().then((res, err) => {
if (err) {
reject(err);
} else {
resolve(res);
}
});
});
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});
};
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/**
* Retrieve value of setting based on key
* @param {string} key Key of setting to retrieve
* @returns {Promise<any>} Value
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* @deprecated Use await Settings.get(key)
*/
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exports.setting = async function (key) {
return await Settings.get(key);
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};
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/**
* Sets the specified setting to specifed value
* @param {string} key Key of setting to set
* @param {any} value Value to set to
* @param {?string} type Type of setting
* @returns {Promise<void>}
*/
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exports.setSetting = async function (key, value, type = null) {
await Settings.set(key, value, type);
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};
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/**
* Get settings based on type
* @param {string} type The type of setting
* @returns {Promise<Bean>}
*/
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exports.getSettings = async function (type) {
return await Settings.getSettings(type);
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};
/**
* Set settings based on type
* @param {string} type Type of settings to set
* @param {Object} data Values of settings
* @returns {Promise<void>}
*/
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exports.setSettings = async function (type, data) {
await Settings.setSettings(type, data);
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};
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// ssl-checker by @dyaa
//https://github.com/dyaa/ssl-checker/blob/master/src/index.ts
/**
* Get number of days between two dates
* @param {Date} validFrom Start date
* @param {Date} validTo End date
* @returns {number}
*/
const getDaysBetween = (validFrom, validTo) =>
Math.round(Math.abs(+validFrom - +validTo) / 8.64e7);
/**
* Get days remaining from a time range
* @param {Date} validFrom Start date
* @param {Date} validTo End date
* @returns {number}
*/
const getDaysRemaining = (validFrom, validTo) => {
const daysRemaining = getDaysBetween(validFrom, validTo);
if (new Date(validTo).getTime() < new Date().getTime()) {
return -daysRemaining;
}
return daysRemaining;
};
/**
* Fix certificate info for display
* @param {Object} info The chain obtained from getPeerCertificate()
* @returns {Object} An object representing certificate information
*/
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const parseCertificateInfo = function (info) {
let link = info;
let i = 0;
const existingList = {};
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while (link) {
log.debug("cert", `[${i}] ${link.fingerprint}`);
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if (!link.valid_from || !link.valid_to) {
break;
}
link.validTo = new Date(link.valid_to);
link.validFor = link.subjectaltname?.replace(/DNS:|IP Address:/g, "").split(", ");
link.daysRemaining = getDaysRemaining(new Date(), link.validTo);
existingList[link.fingerprint] = true;
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// Move up the chain until loop is encountered
if (link.issuerCertificate == null) {
break;
} else if (link.issuerCertificate.fingerprint in existingList) {
log.debug("cert", `[Last] ${link.issuerCertificate.fingerprint}`);
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link.issuerCertificate = null;
break;
} else {
link = link.issuerCertificate;
}
// Should be no use, but just in case.
if (i > 500) {
throw new Error("Dead loop occurred in parseCertificateInfo");
}
i++;
}
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return info;
};
/**
* Check if certificate is valid
* @param {Object} res Response object from axios
* @returns {Object} Object containing certificate information
*/
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exports.checkCertificate = function (res) {
if (!res.request.res.socket) {
throw new Error("No socket found");
}
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const info = res.request.res.socket.getPeerCertificate(true);
const valid = res.request.res.socket.authorized || false;
log.debug("cert", "Parsing Certificate Info");
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const parsedInfo = parseCertificateInfo(info);
return {
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valid: valid,
certInfo: parsedInfo
};
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};
/**
* Check if the provided status code is within the accepted ranges
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* @param {number} status The status code to check
* @param {string[]} acceptedCodes An array of accepted status codes
* @returns {boolean} True if status code within range, false otherwise
* @throws {Error} Will throw an error if the provided status code is not a valid range string or code string
*/
exports.checkStatusCode = function (status, acceptedCodes) {
if (acceptedCodes == null || acceptedCodes.length === 0) {
return false;
}
for (const codeRange of acceptedCodes) {
const codeRangeSplit = codeRange.split("-").map(string => parseInt(string));
if (codeRangeSplit.length === 1) {
if (status === codeRangeSplit[0]) {
return true;
}
} else if (codeRangeSplit.length === 2) {
if (status >= codeRangeSplit[0] && status <= codeRangeSplit[1]) {
return true;
}
} else {
throw new Error("Invalid status code range");
}
}
return false;
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};
/**
* Get total number of clients in room
* @param {Server} io Socket server instance
* @param {string} roomName Name of room to check
* @returns {number}
*/
exports.getTotalClientInRoom = (io, roomName) => {
const sockets = io.sockets;
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if (!sockets) {
return 0;
}
const adapter = sockets.adapter;
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if (!adapter) {
return 0;
}
const room = adapter.rooms.get(roomName);
if (room) {
return room.size;
} else {
return 0;
}
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};
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/**
* Allow CORS all origins if development
* @param {Object} res Response object from axios
*/
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exports.allowDevAllOrigin = (res) => {
if (process.env.NODE_ENV === "development") {
exports.allowAllOrigin(res);
}
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};
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/**
* Allow CORS all origins
* @param {Object} res Response object from axios
*/
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exports.allowAllOrigin = (res) => {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
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};
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/**
* Check if a user is logged in
* @param {Socket} socket Socket instance
*/
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exports.checkLogin = (socket) => {
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if (!socket.userID) {
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throw new Error("You are not logged in.");
}
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};
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/**
* For logged-in users, double-check the password
* @param {Socket} socket Socket.io instance
* @param {string} currentPassword
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* @returns {Promise<Bean>}
*/
exports.doubleCheckPassword = async (socket, currentPassword) => {
if (typeof currentPassword !== "string") {
throw new Error("Wrong data type?");
}
let user = await R.findOne("user", " id = ? AND active = 1 ", [
socket.userID,
]);
if (!user || !passwordHash.verify(currentPassword, user.password)) {
throw new Error("Incorrect current password");
}
return user;
};
/** Start Unit tests */
exports.startUnitTest = async () => {
console.log("Starting unit test...");
const npm = /^win/.test(process.platform) ? "npm.cmd" : "npm";
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const child = childProcess.spawn(npm, [ "run", "jest-backend" ]);
child.stdout.on("data", (data) => {
console.log(data.toString());
});
child.stderr.on("data", (data) => {
console.log(data.toString());
});
child.on("close", function (code) {
console.log("Jest exit code: " + code);
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process.exit(code);
});
};
/** Start end-to-end tests */
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exports.startE2eTests = async () => {
console.log("Starting unit test...");
const npm = /^win/.test(process.platform) ? "npm.cmd" : "npm";
const child = childProcess.spawn(npm, [ "run", "cy:run" ]);
child.stdout.on("data", (data) => {
console.log(data.toString());
});
child.stderr.on("data", (data) => {
console.log(data.toString());
});
child.on("close", function (code) {
console.log("Jest exit code: " + code);
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process.exit(code);
});
};
/**
* Convert unknown string to UTF8
* @param {Uint8Array} body Buffer
* @returns {string}
*/
exports.convertToUTF8 = (body) => {
const guessEncoding = chardet.detect(body);
const str = iconv.decode(body, guessEncoding);
return str.toString();
};
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/**
* Returns a color code in hex format based on a given percentage:
* 0% => hue = 10 => red
* 100% => hue = 90 => green
*
* @param {number} percentage float, 0 to 1
* @param {number} maxHue
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* @param {number} minHue, int
* @returns {string}, hex value
*/
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exports.percentageToColor = (percentage, maxHue = 90, minHue = 10) => {
const hue = percentage * (maxHue - minHue) + minHue;
try {
return chroma(`hsl(${hue}, 90%, 40%)`).hex();
} catch (err) {
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return badgeConstants.naColor;
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}
};
/**
* Joins and array of string to one string after filtering out empty values
*
* @param {string[]} parts
* @param {string} connector
* @returns {string}
*/
exports.filterAndJoin = (parts, connector = "") => {
return parts.filter((part) => !!part && part !== "").join(connector);
};
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/**
* Send a 403 response
* @param {Object} res Express response object
* @param {string} [msg=""] Message to send
*/
module.exports.send403 = (res, msg = "") => {
res.status(403).json({
"status": "fail",
"msg": msg,
});
};
function timeObjectConvertTimezone(obj, timezone, timeObjectToUTC = true) {
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let offsetString;
if (timezone) {
offsetString = dayjs().tz(timezone).format("Z");
} else {
offsetString = dayjs().format("Z");
}
let hours = parseInt(offsetString.substring(1, 3));
let minutes = parseInt(offsetString.substring(4, 6));
if (
(timeObjectToUTC && offsetString.startsWith("+")) ||
(!timeObjectToUTC && offsetString.startsWith("-"))
) {
hours *= -1;
minutes *= -1;
}
obj.hours += hours;
obj.minutes += minutes;
// Handle out of bound
if (obj.minutes < 0) {
obj.minutes += 60;
obj.hours--;
} else if (obj.minutes > 60) {
obj.minutes -= 60;
obj.hours++;
}
if (obj.hours < 0) {
obj.hours += 24;
} else if (obj.hours > 24) {
obj.hours -= 24;
}
return obj;
}
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/**
*
* @param {object} obj
* @param {string} timezone
* @returns {object}
*/
module.exports.timeObjectToUTC = (obj, timezone = undefined) => {
return timeObjectConvertTimezone(obj, timezone, true);
};
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/**
*
* @param {object} obj
* @param {string} timezone
* @returns {object}
*/
module.exports.timeObjectToLocal = (obj, timezone = undefined) => {
return timeObjectConvertTimezone(obj, timezone, false);
};
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/**
* Create gRPC client stib
* @param {Object} options from gRPC client
*/
module.exports.grpcQuery = async (options) => {
const { grpcUrl, grpcProtobufData, grpcServiceName, grpcEnableTls, grpcMethod, grpcBody } = options;
const protocObject = protojs.parse(grpcProtobufData);
const protoServiceObject = protocObject.root.lookupService(grpcServiceName);
const Client = grpc.makeGenericClientConstructor({});
const credentials = grpcEnableTls ? grpc.credentials.createSsl() : grpc.credentials.createInsecure();
const client = new Client(
grpcUrl,
credentials
);
const grpcService = protoServiceObject.create(function (method, requestData, cb) {
const fullServiceName = method.fullName;
const serviceFQDN = fullServiceName.split(".");
const serviceMethod = serviceFQDN.pop();
const serviceMethodClientImpl = `/${serviceFQDN.slice(1).join(".")}/${serviceMethod}`;
log.debug("monitor", `gRPC method ${serviceMethodClientImpl}`);
client.makeUnaryRequest(
serviceMethodClientImpl,
arg => arg,
arg => arg,
requestData,
cb);
}, false, false);
return new Promise((resolve, _) => {
try {
return grpcService[`${grpcMethod}`](JSON.parse(grpcBody), function (err, response) {
const responseData = JSON.stringify(response);
if (err) {
return resolve({
code: err.code,
errorMessage: err.details,
data: ""
});
} else {
log.debug("monitor:", `gRPC response: ${JSON.stringify(response)}`);
return resolve({
code: 1,
errorMessage: "",
data: responseData
});
}
});
} catch (err) {
return resolve({
code: -1,
errorMessage: `Error ${err}. Please review your gRPC configuration option. The service name must not include package name value, and the method name must follow camelCase format`,
data: ""
});
}
});
};