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monitor.js
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monitor.js
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const dayjs = require("dayjs");
const axios = require("axios");
const { Prometheus } = require("../prometheus");
const { log, UP, DOWN, PENDING, MAINTENANCE, flipStatus, MAX_INTERVAL_SECOND, MIN_INTERVAL_SECOND,
SQL_DATETIME_FORMAT, evaluateJsonQuery
} = require("../../src/util");
const { tcping, ping, checkCertificate, checkStatusCode, getTotalClientInRoom, setting, mssqlQuery, postgresQuery, mysqlQuery, setSetting, httpNtlm, radius, grpcQuery,
redisPingAsync, kafkaProducerAsync, getOidcTokenClientCredentials, rootCertificatesFingerprints, axiosAbortSignal
} = require("../util-server");
const { R } = require("redbean-node");
const { BeanModel } = require("redbean-node/dist/bean-model");
const { Notification } = require("../notification");
const { Proxy } = require("../proxy");
const { demoMode } = require("../config");
const version = require("../../package.json").version;
const apicache = require("../modules/apicache");
const { UptimeKumaServer } = require("../uptime-kuma-server");
const { DockerHost } = require("../docker");
const Gamedig = require("gamedig");
const jwt = require("jsonwebtoken");
const crypto = require("crypto");
const { UptimeCalculator } = require("../uptime-calculator");
const { CookieJar } = require("tough-cookie");
const { HttpsCookieAgent } = require("http-cookie-agent/http");
const https = require("https");
const http = require("http");
const rootCertificates = rootCertificatesFingerprints();
/**
* status:
* 0 = DOWN
* 1 = UP
* 2 = PENDING
* 3 = MAINTENANCE
*/
class Monitor extends BeanModel {
/**
* Return an object that ready to parse to JSON for public Only show
* necessary data to public
* @param {boolean} showTags Include tags in JSON
* @param {boolean} certExpiry Include certificate expiry info in
* JSON
* @returns {Promise<object>} Object ready to parse
*/
async toPublicJSON(showTags = false, certExpiry = false) {
let obj = {
id: this.id,
name: this.name,
sendUrl: this.sendUrl,
type: this.type,
};
if (this.sendUrl) {
obj.url = this.url;
}
if (showTags) {
obj.tags = await this.getTags();
}
if (certExpiry && (this.type === "http" || this.type === "keyword" || this.type === "json-query") && this.getURLProtocol() === "https:") {
const { certExpiryDaysRemaining, validCert } = await this.getCertExpiry(this.id);
obj.certExpiryDaysRemaining = certExpiryDaysRemaining;
obj.validCert = validCert;
}
return obj;
}
/**
* Return an object that ready to parse to JSON
* @param {object} preloadData to prevent n+1 problems, we query the data in a batch outside of this function
* @param {boolean} includeSensitiveData Include sensitive data in
* JSON
* @returns {object} Object ready to parse
*/
toJSON(preloadData = {}, includeSensitiveData = true) {
let screenshot = null;
if (this.type === "real-browser") {
screenshot = "/screenshots/" + jwt.sign(this.id, UptimeKumaServer.getInstance().jwtSecret) + ".png";
}
const path = preloadData.paths.get(this.id) || [];
const pathName = path.join(" / ");
let data = {
id: this.id,
name: this.name,
description: this.description,
path,
pathName,
parent: this.parent,
childrenIDs: preloadData.childrenIDs.get(this.id) || [],
url: this.url,
method: this.method,
hostname: this.hostname,
port: this.port,
maxretries: this.maxretries,
weight: this.weight,
active: preloadData.activeStatus.get(this.id),
forceInactive: preloadData.forceInactive.get(this.id),
type: this.type,
timeout: this.timeout,
interval: this.interval,
retryInterval: this.retryInterval,
resendInterval: this.resendInterval,
keyword: this.keyword,
invertKeyword: this.isInvertKeyword(),
expiryNotification: this.isEnabledExpiryNotification(),
ignoreTls: this.getIgnoreTls(),
upsideDown: this.isUpsideDown(),
packetSize: this.packetSize,
maxredirects: this.maxredirects,
accepted_statuscodes: this.getAcceptedStatuscodes(),
dns_resolve_type: this.dns_resolve_type,
dns_resolve_server: this.dns_resolve_server,
dns_last_result: this.dns_last_result,
docker_container: this.docker_container,
docker_host: this.docker_host,
proxyId: this.proxy_id,
notificationIDList: preloadData.notifications.get(this.id) || {},
tags: preloadData.tags.get(this.id) || [],
maintenance: preloadData.maintenanceStatus.get(this.id),
mqttTopic: this.mqttTopic,
mqttSuccessMessage: this.mqttSuccessMessage,
mqttCheckType: this.mqttCheckType,
databaseQuery: this.databaseQuery,
authMethod: this.authMethod,
grpcUrl: this.grpcUrl,
grpcProtobuf: this.grpcProtobuf,
grpcMethod: this.grpcMethod,
grpcServiceName: this.grpcServiceName,
grpcEnableTls: this.getGrpcEnableTls(),
radiusCalledStationId: this.radiusCalledStationId,
radiusCallingStationId: this.radiusCallingStationId,
game: this.game,
gamedigGivenPortOnly: this.getGameDigGivenPortOnly(),
httpBodyEncoding: this.httpBodyEncoding,
jsonPath: this.jsonPath,
expectedValue: this.expectedValue,
kafkaProducerTopic: this.kafkaProducerTopic,
kafkaProducerBrokers: JSON.parse(this.kafkaProducerBrokers),
kafkaProducerSsl: this.getKafkaProducerSsl(),
kafkaProducerAllowAutoTopicCreation: this.getKafkaProducerAllowAutoTopicCreation(),
kafkaProducerMessage: this.kafkaProducerMessage,
screenshot,
cacheBust: this.getCacheBust(),
remote_browser: this.remote_browser,
snmpOid: this.snmpOid,
jsonPathOperator: this.jsonPathOperator,
snmpVersion: this.snmpVersion,
rabbitmqNodes: JSON.parse(this.rabbitmqNodes),
conditions: JSON.parse(this.conditions),
};
if (includeSensitiveData) {
data = {
...data,
headers: this.headers,
body: this.body,
grpcBody: this.grpcBody,
grpcMetadata: this.grpcMetadata,
basic_auth_user: this.basic_auth_user,
basic_auth_pass: this.basic_auth_pass,
oauth_client_id: this.oauth_client_id,
oauth_client_secret: this.oauth_client_secret,
oauth_token_url: this.oauth_token_url,
oauth_scopes: this.oauth_scopes,
oauth_auth_method: this.oauth_auth_method,
pushToken: this.pushToken,
databaseConnectionString: this.databaseConnectionString,
radiusUsername: this.radiusUsername,
radiusPassword: this.radiusPassword,
radiusSecret: this.radiusSecret,
mqttUsername: this.mqttUsername,
mqttPassword: this.mqttPassword,
authWorkstation: this.authWorkstation,
authDomain: this.authDomain,
tlsCa: this.tlsCa,
tlsCert: this.tlsCert,
tlsKey: this.tlsKey,
kafkaProducerSaslOptions: JSON.parse(this.kafkaProducerSaslOptions),
rabbitmqUsername: this.rabbitmqUsername,
rabbitmqPassword: this.rabbitmqPassword,
};
}
data.includeSensitiveData = includeSensitiveData;
return data;
}
/**
* Get all tags applied to this monitor
* @returns {Promise<LooseObject<any>[]>} List of tags on the
* monitor
*/
async getTags() {
return await R.getAll("SELECT mt.*, tag.name, tag.color FROM monitor_tag mt JOIN tag ON mt.tag_id = tag.id WHERE mt.monitor_id = ? ORDER BY tag.name", [ this.id ]);
}
/**
* Gets certificate expiry for this monitor
* @param {number} monitorID ID of monitor to send
* @returns {Promise<LooseObject<any>>} Certificate expiry info for
* monitor
*/
async getCertExpiry(monitorID) {
let tlsInfoBean = await R.findOne("monitor_tls_info", "monitor_id = ?", [
monitorID,
]);
let tlsInfo;
if (tlsInfoBean) {
tlsInfo = JSON.parse(tlsInfoBean?.info_json);
if (tlsInfo?.valid && tlsInfo?.certInfo?.daysRemaining) {
return {
certExpiryDaysRemaining: tlsInfo.certInfo.daysRemaining,
validCert: true
};
}
}
return {
certExpiryDaysRemaining: "",
validCert: false
};
}
/**
* Encode user and password to Base64 encoding
* for HTTP "basic" auth, as per RFC-7617
* @param {string|null} user - The username (nullable if not changed by a user)
* @param {string|null} pass - The password (nullable if not changed by a user)
* @returns {string} Encoded Base64 string
*/
encodeBase64(user, pass) {
return Buffer.from(`${user || ""}:${pass || ""}`).toString("base64");
}
/**
* Is the TLS expiry notification enabled?
* @returns {boolean} Enabled?
*/
isEnabledExpiryNotification() {
return Boolean(this.expiryNotification);
}
/**
* Parse to boolean
* @returns {boolean} Should TLS errors be ignored?
*/
getIgnoreTls() {
return Boolean(this.ignoreTls);
}
/**
* Parse to boolean
* @returns {boolean} Is the monitor in upside down mode?
*/
isUpsideDown() {
return Boolean(this.upsideDown);
}
/**
* Parse to boolean
* @returns {boolean} Invert keyword match?
*/
isInvertKeyword() {
return Boolean(this.invertKeyword);
}
/**
* Parse to boolean
* @returns {boolean} Enable TLS for gRPC?
*/
getGrpcEnableTls() {
return Boolean(this.grpcEnableTls);
}
/**
* Parse to boolean
* @returns {boolean} if cachebusting is enabled
*/
getCacheBust() {
return Boolean(this.cacheBust);
}
/**
* Get accepted status codes
* @returns {object} Accepted status codes
*/
getAcceptedStatuscodes() {
return JSON.parse(this.accepted_statuscodes_json);
}
/**
* Get if game dig should only use the port which was provided
* @returns {boolean} gamedig should only use the provided port
*/
getGameDigGivenPortOnly() {
return Boolean(this.gamedigGivenPortOnly);
}
/**
* Parse to boolean
* @returns {boolean} Kafka Producer Ssl enabled?
*/
getKafkaProducerSsl() {
return Boolean(this.kafkaProducerSsl);
}
/**
* Parse to boolean
* @returns {boolean} Kafka Producer Allow Auto Topic Creation Enabled?
*/
getKafkaProducerAllowAutoTopicCreation() {
return Boolean(this.kafkaProducerAllowAutoTopicCreation);
}
/**
* Start monitor
* @param {Server} io Socket server instance
* @returns {Promise<void>}
*/
async start(io) {
let previousBeat = null;
let retries = 0;
this.prometheus = new Prometheus(this);
const beat = async () => {
let beatInterval = this.interval;
if (! beatInterval) {
beatInterval = 1;
}
if (demoMode) {
if (beatInterval < 20) {
console.log("beat interval too low, reset to 20s");
beatInterval = 20;
}
}
// Expose here for prometheus update
// undefined if not https
let tlsInfo = undefined;
if (!previousBeat || this.type === "push") {
previousBeat = await R.findOne("heartbeat", " monitor_id = ? ORDER BY time DESC", [
this.id,
]);
if (previousBeat) {
retries = previousBeat.retries;
}
}
const isFirstBeat = !previousBeat;
let bean = R.dispense("heartbeat");
bean.monitor_id = this.id;
bean.time = R.isoDateTimeMillis(dayjs.utc());
bean.status = DOWN;
bean.downCount = previousBeat?.downCount || 0;
if (this.isUpsideDown()) {
bean.status = flipStatus(bean.status);
}
// Runtime patch timeout if it is 0
// See https://github.com/louislam/uptime-kuma/pull/3961#issuecomment-1804149144
if (!this.timeout || this.timeout <= 0) {
this.timeout = this.interval * 1000 * 0.8;
}
try {
if (await Monitor.isUnderMaintenance(this.id)) {
bean.msg = "Monitor under maintenance";
bean.status = MAINTENANCE;
} else if (this.type === "group") {
const children = await Monitor.getChildren(this.id);
if (children.length > 0) {
bean.status = UP;
bean.msg = "All children up and running";
for (const child of children) {
if (!child.active) {
// Ignore inactive childs
continue;
}
const lastBeat = await Monitor.getPreviousHeartbeat(child.id);
// Only change state if the monitor is in worse conditions then the ones before
// lastBeat.status could be null
if (!lastBeat) {
bean.status = PENDING;
} else if (bean.status === UP && (lastBeat.status === PENDING || lastBeat.status === DOWN)) {
bean.status = lastBeat.status;
} else if (bean.status === PENDING && lastBeat.status === DOWN) {
bean.status = lastBeat.status;
}
}
if (bean.status !== UP) {
bean.msg = "Child inaccessible";
}
} else {
// Set status pending if group is empty
bean.status = PENDING;
bean.msg = "Group empty";
}
} else if (this.type === "http" || this.type === "keyword" || this.type === "json-query") {
// Do not do any queries/high loading things before the "bean.ping"
let startTime = dayjs().valueOf();
// HTTP basic auth
let basicAuthHeader = {};
if (this.auth_method === "basic") {
basicAuthHeader = {
"Authorization": "Basic " + this.encodeBase64(this.basic_auth_user, this.basic_auth_pass),
};
}
// OIDC: Basic client credential flow.
// Additional grants might be implemented in the future
let oauth2AuthHeader = {};
if (this.auth_method === "oauth2-cc") {
try {
if (this.oauthAccessToken === undefined || new Date(this.oauthAccessToken.expires_at * 1000) <= new Date()) {
this.oauthAccessToken = await this.makeOidcTokenClientCredentialsRequest();
}
oauth2AuthHeader = {
"Authorization": this.oauthAccessToken.token_type + " " + this.oauthAccessToken.access_token,
};
} catch (e) {
throw new Error("The oauth config is invalid. " + e.message);
}
}
const httpsAgentOptions = {
maxCachedSessions: 0, // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
rejectUnauthorized: !this.getIgnoreTls(),
secureOptions: crypto.constants.SSL_OP_LEGACY_SERVER_CONNECT,
};
log.debug("monitor", `[${this.name}] Prepare Options for axios`);
let contentType = null;
let bodyValue = null;
if (this.body && (typeof this.body === "string" && this.body.trim().length > 0)) {
if (!this.httpBodyEncoding || this.httpBodyEncoding === "json") {
try {
bodyValue = JSON.parse(this.body);
contentType = "application/json";
} catch (e) {
throw new Error("Your JSON body is invalid. " + e.message);
}
} else if (this.httpBodyEncoding === "form") {
bodyValue = this.body;
contentType = "application/x-www-form-urlencoded";
} else if (this.httpBodyEncoding === "xml") {
bodyValue = this.body;
contentType = "text/xml; charset=utf-8";
}
}
// Axios Options
const options = {
url: this.url,
method: (this.method || "get").toLowerCase(),
timeout: this.timeout * 1000,
headers: {
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
...(contentType ? { "Content-Type": contentType } : {}),
...(basicAuthHeader),
...(oauth2AuthHeader),
...(this.headers ? JSON.parse(this.headers) : {})
},
maxRedirects: this.maxredirects,
validateStatus: (status) => {
return checkStatusCode(status, this.getAcceptedStatuscodes());
},
signal: axiosAbortSignal((this.timeout + 10) * 1000),
};
if (bodyValue) {
options.data = bodyValue;
}
if (this.cacheBust) {
const randomFloatString = Math.random().toString(36);
const cacheBust = randomFloatString.substring(2);
options.params = {
uptime_kuma_cachebuster: cacheBust,
};
}
if (this.proxy_id) {
const proxy = await R.load("proxy", this.proxy_id);
if (proxy && proxy.active) {
const { httpAgent, httpsAgent } = Proxy.createAgents(proxy, {
httpsAgentOptions: httpsAgentOptions,
});
options.proxy = false;
options.httpAgent = httpAgent;
options.httpsAgent = httpsAgent;
}
}
if (!options.httpsAgent) {
let jar = new CookieJar();
let httpsCookieAgentOptions = {
...httpsAgentOptions,
cookies: { jar }
};
options.httpsAgent = new HttpsCookieAgent(httpsCookieAgentOptions);
}
if (this.auth_method === "mtls") {
if (this.tlsCert !== null && this.tlsCert !== "") {
options.httpsAgent.options.cert = Buffer.from(this.tlsCert);
}
if (this.tlsCa !== null && this.tlsCa !== "") {
options.httpsAgent.options.ca = Buffer.from(this.tlsCa);
}
if (this.tlsKey !== null && this.tlsKey !== "") {
options.httpsAgent.options.key = Buffer.from(this.tlsKey);
}
}
let tlsInfo = {};
// Store tlsInfo when secureConnect event is emitted
// The keylog event listener is a workaround to access the tlsSocket
options.httpsAgent.once("keylog", async (line, tlsSocket) => {
tlsSocket.once("secureConnect", async () => {
tlsInfo = checkCertificate(tlsSocket);
tlsInfo.valid = tlsSocket.authorized || false;
await this.handleTlsInfo(tlsInfo);
});
});
log.debug("monitor", `[${this.name}] Axios Options: ${JSON.stringify(options)}`);
log.debug("monitor", `[${this.name}] Axios Request`);
// Make Request
let res = await this.makeAxiosRequest(options);
bean.msg = `${res.status} - ${res.statusText}`;
bean.ping = dayjs().valueOf() - startTime;
// fallback for if kelog event is not emitted, but we may still have tlsInfo,
// e.g. if the connection is made through a proxy
if (this.getUrl()?.protocol === "https:" && tlsInfo.valid === undefined) {
const tlsSocket = res.request.res.socket;
if (tlsSocket) {
tlsInfo = checkCertificate(tlsSocket);
tlsInfo.valid = tlsSocket.authorized || false;
await this.handleTlsInfo(tlsInfo);
}
}
if (process.env.UPTIME_KUMA_LOG_RESPONSE_BODY_MONITOR_ID === this.id) {
log.info("monitor", res.data);
}
if (this.type === "http") {
bean.status = UP;
} else if (this.type === "keyword") {
let data = res.data;
// Convert to string for object/array
if (typeof data !== "string") {
data = JSON.stringify(data);
}
let keywordFound = data.includes(this.keyword);
if (keywordFound === !this.isInvertKeyword()) {
bean.msg += ", keyword " + (keywordFound ? "is" : "not") + " found";
bean.status = UP;
} else {
data = data.replace(/<[^>]*>?|[\n\r]|\s+/gm, " ").trim();
if (data.length > 50) {
data = data.substring(0, 47) + "...";
}
throw new Error(bean.msg + ", but keyword is " +
(keywordFound ? "present" : "not") + " in [" + data + "]");
}
} else if (this.type === "json-query") {
let data = res.data;
const { status, response } = await evaluateJsonQuery(data, this.jsonPath, this.jsonPathOperator, this.expectedValue);
if (status) {
bean.status = UP;
bean.msg = `JSON query passes (comparing ${response} ${this.jsonPathOperator} ${this.expectedValue})`;
} else {
throw new Error(`JSON query does not pass (comparing ${response} ${this.jsonPathOperator} ${this.expectedValue})`);
}
}
} else if (this.type === "port") {
bean.ping = await tcping(this.hostname, this.port);
bean.msg = "";
bean.status = UP;
} else if (this.type === "ping") {
bean.ping = await ping(this.hostname, this.packetSize);
bean.msg = "";
bean.status = UP;
} else if (this.type === "push") { // Type: Push
log.debug("monitor", `[${this.name}] Checking monitor at ${dayjs().format("YYYY-MM-DD HH:mm:ss.SSS")}`);
const bufferTime = 1000; // 1s buffer to accommodate clock differences
if (previousBeat) {
const msSinceLastBeat = dayjs.utc().valueOf() - dayjs.utc(previousBeat.time).valueOf();
log.debug("monitor", `[${this.name}] msSinceLastBeat = ${msSinceLastBeat}`);
// If the previous beat was down or pending we use the regular
// beatInterval/retryInterval in the setTimeout further below
if (previousBeat.status !== (this.isUpsideDown() ? DOWN : UP) || msSinceLastBeat > beatInterval * 1000 + bufferTime) {
bean.duration = Math.round(msSinceLastBeat / 1000);
throw new Error("No heartbeat in the time window");
} else {
let timeout = beatInterval * 1000 - msSinceLastBeat;
if (timeout < 0) {
timeout = bufferTime;
} else {
timeout += bufferTime;
}
// No need to insert successful heartbeat for push type, so end here
retries = 0;
log.debug("monitor", `[${this.name}] timeout = ${timeout}`);
this.heartbeatInterval = setTimeout(safeBeat, timeout);
return;
}
} else {
bean.duration = beatInterval;
throw new Error("No heartbeat in the time window");
}
} else if (this.type === "steam") {
const steamApiUrl = "https://api.steampowered.com/IGameServersService/GetServerList/v1/";
const steamAPIKey = await setting("steamAPIKey");
const filter = `addr\\${this.hostname}:${this.port}`;
if (!steamAPIKey) {
throw new Error("Steam API Key not found");
}
let res = await axios.get(steamApiUrl, {
timeout: this.timeout * 1000,
headers: {
"Accept": "*/*",
},
httpsAgent: new https.Agent({
maxCachedSessions: 0, // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
rejectUnauthorized: !this.getIgnoreTls(),
secureOptions: crypto.constants.SSL_OP_LEGACY_SERVER_CONNECT,
}),
httpAgent: new http.Agent({
maxCachedSessions: 0,
}),
maxRedirects: this.maxredirects,
validateStatus: (status) => {
return checkStatusCode(status, this.getAcceptedStatuscodes());
},
params: {
filter: filter,
key: steamAPIKey,
}
});
if (res.data.response && res.data.response.servers && res.data.response.servers.length > 0) {
bean.status = UP;
bean.msg = res.data.response.servers[0].name;
try {
bean.ping = await ping(this.hostname, this.packetSize);
} catch (_) { }
} else {
throw new Error("Server not found on Steam");
}
} else if (this.type === "gamedig") {
try {
const state = await Gamedig.query({
type: this.game,
host: this.hostname,
port: this.port,
givenPortOnly: this.getGameDigGivenPortOnly(),
});
bean.msg = state.name;
bean.status = UP;
bean.ping = state.ping;
} catch (e) {
throw new Error(e.message);
}
} else if (this.type === "docker") {
log.debug("monitor", `[${this.name}] Prepare Options for Axios`);
const options = {
url: `/containers/${this.docker_container}/json`,
timeout: this.interval * 1000 * 0.8,
headers: {
"Accept": "*/*",
},
httpsAgent: new https.Agent({
maxCachedSessions: 0, // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
rejectUnauthorized: !this.getIgnoreTls(),
secureOptions: crypto.constants.SSL_OP_LEGACY_SERVER_CONNECT,
}),
httpAgent: new http.Agent({
maxCachedSessions: 0,
}),
};
const dockerHost = await R.load("docker_host", this.docker_host);
if (!dockerHost) {
throw new Error("Failed to load docker host config");
}
if (dockerHost._dockerType === "socket") {
options.socketPath = dockerHost._dockerDaemon;
} else if (dockerHost._dockerType === "tcp") {
options.baseURL = DockerHost.patchDockerURL(dockerHost._dockerDaemon);
options.httpsAgent = new https.Agent(
DockerHost.getHttpsAgentOptions(dockerHost._dockerType, options.baseURL)
);
}
log.debug("monitor", `[${this.name}] Axios Request`);
let res = await axios.request(options);
if (res.data.State.Running) {
if (res.data.State.Health && res.data.State.Health.Status !== "healthy") {
bean.status = PENDING;
bean.msg = res.data.State.Health.Status;
} else {
bean.status = UP;
bean.msg = res.data.State.Health ? res.data.State.Health.Status : res.data.State.Status;
}
} else {
throw Error("Container State is " + res.data.State.Status);
}
} else if (this.type === "sqlserver") {
let startTime = dayjs().valueOf();
await mssqlQuery(this.databaseConnectionString, this.databaseQuery || "SELECT 1");
bean.msg = "";
bean.status = UP;
bean.ping = dayjs().valueOf() - startTime;
} else if (this.type === "grpc-keyword") {
let startTime = dayjs().valueOf();
const options = {
grpcUrl: this.grpcUrl,
grpcProtobufData: this.grpcProtobuf,
grpcServiceName: this.grpcServiceName,
grpcEnableTls: this.grpcEnableTls,
grpcMethod: this.grpcMethod,
grpcBody: this.grpcBody,
};
const response = await grpcQuery(options);
bean.ping = dayjs().valueOf() - startTime;
log.debug("monitor:", `gRPC response: ${JSON.stringify(response)}`);
let responseData = response.data;
if (responseData.length > 50) {
responseData = responseData.toString().substring(0, 47) + "...";
}
if (response.code !== 1) {
bean.status = DOWN;
bean.msg = `Error in send gRPC ${response.code} ${response.errorMessage}`;
} else {
let keywordFound = response.data.toString().includes(this.keyword);
if (keywordFound === !this.isInvertKeyword()) {
bean.status = UP;
bean.msg = `${responseData}, keyword [${this.keyword}] ${keywordFound ? "is" : "not"} found`;
} else {
log.debug("monitor:", `GRPC response [${response.data}] + ", but keyword [${this.keyword}] is ${keywordFound ? "present" : "not"} in [" + ${response.data} + "]"`);
bean.status = DOWN;
bean.msg = `, but keyword [${this.keyword}] is ${keywordFound ? "present" : "not"} in [" + ${responseData} + "]`;
}
}
} else if (this.type === "postgres") {
let startTime = dayjs().valueOf();
await postgresQuery(this.databaseConnectionString, this.databaseQuery || "SELECT 1");
bean.msg = "";
bean.status = UP;
bean.ping = dayjs().valueOf() - startTime;
} else if (this.type === "mysql") {
let startTime = dayjs().valueOf();
// Use `radius_password` as `password` field, since there are too many unnecessary fields
// TODO: rename `radius_password` to `password` later for general use
let mysqlPassword = this.radiusPassword;
bean.msg = await mysqlQuery(this.databaseConnectionString, this.databaseQuery || "SELECT 1", mysqlPassword);
bean.status = UP;
bean.ping = dayjs().valueOf() - startTime;
} else if (this.type === "radius") {
let startTime = dayjs().valueOf();
// Handle monitors that were created before the
// update and as such don't have a value for
// this.port.
let port;
if (this.port == null) {
port = 1812;
} else {
port = this.port;
}
const resp = await radius(
this.hostname,
this.radiusUsername,
this.radiusPassword,
this.radiusCalledStationId,
this.radiusCallingStationId,
this.radiusSecret,
port,
this.interval * 1000 * 0.4,
);
bean.msg = resp.code;
bean.status = UP;
bean.ping = dayjs().valueOf() - startTime;
} else if (this.type === "redis") {
let startTime = dayjs().valueOf();
bean.msg = await redisPingAsync(this.databaseConnectionString, !this.ignoreTls);
bean.status = UP;
bean.ping = dayjs().valueOf() - startTime;
} else if (this.type in UptimeKumaServer.monitorTypeList) {
let startTime = dayjs().valueOf();
const monitorType = UptimeKumaServer.monitorTypeList[this.type];
await monitorType.check(this, bean, UptimeKumaServer.getInstance());
if (!bean.ping) {
bean.ping = dayjs().valueOf() - startTime;
}
} else if (this.type === "kafka-producer") {
let startTime = dayjs().valueOf();
bean.msg = await kafkaProducerAsync(
JSON.parse(this.kafkaProducerBrokers),
this.kafkaProducerTopic,
this.kafkaProducerMessage,
{
allowAutoTopicCreation: this.kafkaProducerAllowAutoTopicCreation,
ssl: this.kafkaProducerSsl,
clientId: `Uptime-Kuma/${version}`,
interval: this.interval,
},
JSON.parse(this.kafkaProducerSaslOptions),
);
bean.status = UP;
bean.ping = dayjs().valueOf() - startTime;
} else {
throw new Error("Unknown Monitor Type");
}
if (this.isUpsideDown()) {
bean.status = flipStatus(bean.status);
if (bean.status === DOWN) {
throw new Error("Flip UP to DOWN");
}
}
retries = 0;
} catch (error) {
if (error?.name === "CanceledError") {
bean.msg = `timeout by AbortSignal (${this.timeout}s)`;
} else {
bean.msg = error.message;
}
// If UP come in here, it must be upside down mode
// Just reset the retries
if (this.isUpsideDown() && bean.status === UP) {
retries = 0;
} else if ((this.maxretries > 0) && (retries < this.maxretries)) {
retries++;
bean.status = PENDING;
} else {
// Continue counting retries during DOWN
retries++;
}
}
bean.retries = retries;
log.debug("monitor", `[${this.name}] Check isImportant`);
let isImportant = Monitor.isImportantBeat(isFirstBeat, previousBeat?.status, bean.status);
// Mark as important if status changed, ignore pending pings,
// Don't notify if disrupted changes to up
if (isImportant) {
bean.important = true;
if (Monitor.isImportantForNotification(isFirstBeat, previousBeat?.status, bean.status)) {
log.debug("monitor", `[${this.name}] sendNotification`);
await Monitor.sendNotification(isFirstBeat, this, bean);
} else {
log.debug("monitor", `[${this.name}] will not sendNotification because it is (or was) under maintenance`);
}
// Reset down count
bean.downCount = 0;
// Clear Status Page Cache
log.debug("monitor", `[${this.name}] apicache clear`);
apicache.clear();
await UptimeKumaServer.getInstance().sendMaintenanceListByUserID(this.user_id);
} else {
bean.important = false;
if (bean.status === DOWN && this.resendInterval > 0) {
++bean.downCount;
if (bean.downCount >= this.resendInterval) {
// Send notification again, because we are still DOWN
log.debug("monitor", `[${this.name}] sendNotification again: Down Count: ${bean.downCount} | Resend Interval: ${this.resendInterval}`);
await Monitor.sendNotification(isFirstBeat, this, bean);
// Reset down count
bean.downCount = 0;
}
}
}
if (bean.status === UP) {
log.debug("monitor", `Monitor #${this.id} '${this.name}': Successful Response: ${bean.ping} ms | Interval: ${beatInterval} seconds | Type: ${this.type}`);
} else if (bean.status === PENDING) {
if (this.retryInterval > 0) {
beatInterval = this.retryInterval;
}
log.warn("monitor", `Monitor #${this.id} '${this.name}': Pending: ${bean.msg} | Max retries: ${this.maxretries} | Retry: ${retries} | Retry Interval: ${beatInterval} seconds | Type: ${this.type}`);
} else if (bean.status === MAINTENANCE) {
log.warn("monitor", `Monitor #${this.id} '${this.name}': Under Maintenance | Type: ${this.type}`);
} else {
log.warn("monitor", `Monitor #${this.id} '${this.name}': Failing: ${bean.msg} | Interval: ${beatInterval} seconds | Type: ${this.type} | Down Count: ${bean.downCount} | Resend Interval: ${this.resendInterval}`);
}
// Calculate uptime
let uptimeCalculator = await UptimeCalculator.getUptimeCalculator(this.id);
let endTimeDayjs = await uptimeCalculator.update(bean.status, parseFloat(bean.ping));
bean.end_time = R.isoDateTimeMillis(endTimeDayjs);
// Send to frontend
log.debug("monitor", `[${this.name}] Send to socket`);
io.to(this.user_id).emit("heartbeat", bean.toJSON());
Monitor.sendStats(io, this.id, this.user_id);
// Store to database
log.debug("monitor", `[${this.name}] Store`);
await R.store(bean);
log.debug("monitor", `[${this.name}] prometheus.update`);
this.prometheus?.update(bean, tlsInfo);
previousBeat = bean;
if (! this.isStop) {
log.debug("monitor", `[${this.name}] SetTimeout for next check.`);
let intervalRemainingMs = Math.max(
1,
beatInterval * 1000 - dayjs().diff(dayjs.utc(bean.time))
);
log.debug("monitor", `[${this.name}] Next heartbeat in: ${intervalRemainingMs}ms`);
this.heartbeatInterval = setTimeout(safeBeat, intervalRemainingMs);
} else {
log.info("monitor", `[${this.name}] isStop = true, no next check.`);
}