let express = require("express");
const {
setting,
allowDevAllOrigin,
allowAllOrigin,
percentageToColor,
filterAndJoin,
sendHttpError,
} = require("../util-server");
const { R } = require("redbean-node");
const apicache = require("../modules/apicache");
const Monitor = require("../model/monitor");
const dayjs = require("dayjs");
const { UP, MAINTENANCE, DOWN, PENDING, flipStatus, log, badgeConstants } = require("../../src/util");
const StatusPage = require("../model/status_page");
const { UptimeKumaServer } = require("../uptime-kuma-server");
const { makeBadge } = require("badge-maker");
const { Prometheus } = require("../prometheus");
const Database = require("../database");
const { UptimeCalculator } = require("../uptime-calculator");
let router = express.Router();
let cache = apicache.middleware;
const server = UptimeKumaServer.getInstance();
let io = server.io;
router.get("/api/entry-page", async (request, response) => {
allowDevAllOrigin(response);
let result = { };
let hostname = request.hostname;
if ((await setting("trustProxy")) && request.headers["x-forwarded-host"]) {
hostname = request.headers["x-forwarded-host"];
}
if (hostname in StatusPage.domainMappingList) {
result.type = "statusPageMatchedDomain";
result.statusPageSlug = StatusPage.domainMappingList[hostname];
} else {
result.type = "entryPage";
result.entryPage = server.entryPage;
}
response.json(result);
});
router.all("/api/push/:pushToken", async (request, response) => {
try {
let pushToken = request.params.pushToken;
let msg = request.query.msg || "OK";
let ping = parseFloat(request.query.ping) || null;
let statusString = request.query.status || "up";
const statusFromParam = (statusString === "up") ? UP : DOWN;
let monitor = await R.findOne("monitor", " push_token = ? AND active = 1 ", [
pushToken
]);
if (! monitor) {
throw new Error("Monitor not found or not active.");
}
const previousHeartbeat = await Monitor.getPreviousHeartbeat(monitor.id);
let isFirstBeat = true;
let bean = R.dispense("heartbeat");
bean.time = R.isoDateTimeMillis(dayjs.utc());
bean.monitor_id = monitor.id;
bean.ping = ping;
bean.msg = msg;
bean.downCount = previousHeartbeat?.downCount || 0;
if (previousHeartbeat) {
isFirstBeat = false;
bean.duration = dayjs(bean.time).diff(dayjs(previousHeartbeat.time), "second");
}
if (await Monitor.isUnderMaintenance(monitor.id)) {
msg = "Monitor under maintenance";
bean.status = MAINTENANCE;
} else {
determineStatus(statusFromParam, previousHeartbeat, monitor.maxretries, monitor.isUpsideDown(), bean);
}
// Calculate uptime
let uptimeCalculator = await UptimeCalculator.getUptimeCalculator(monitor.id);
let endTimeDayjs = await uptimeCalculator.update(bean.status, parseFloat(bean.ping));
bean.end_time = R.isoDateTimeMillis(endTimeDayjs);
log.debug("router", `/api/push/ called at ${dayjs().format("YYYY-MM-DD HH:mm:ss.SSS")}`);
log.debug("router", "PreviousStatus: " + previousHeartbeat?.status);
log.debug("router", "Current Status: " + bean.status);
bean.important = Monitor.isImportantBeat(isFirstBeat, previousHeartbeat?.status, bean.status);
if (Monitor.isImportantForNotification(isFirstBeat, previousHeartbeat?.status, bean.status)) {
// Reset down count
bean.downCount = 0;
log.debug("monitor", `[${monitor.name}] sendNotification`);
await Monitor.sendNotification(isFirstBeat, monitor, bean);
} else {
if (bean.status === DOWN && monitor.resendInterval > 0) {
++bean.downCount;
if (bean.downCount >= monitor.resendInterval) {
// Send notification again, because we are still DOWN
log.debug("monitor", `[${monitor.name}] sendNotification again: Down Count: ${bean.downCount} | Resend Interval: ${monitor.resendInterval}`);
await Monitor.sendNotification(isFirstBeat, monitor, bean);
// Reset down count
bean.downCount = 0;
}
}
}
await R.store(bean);
io.to(monitor.user_id).emit("heartbeat", bean.toJSON());
Monitor.sendStats(io, monitor.id, monitor.user_id);
new Prometheus(monitor).update(bean, undefined);
response.json({
ok: true,
});
} catch (e) {
response.status(404).json({
ok: false,
msg: e.message
});
}
});
router.get("/api/badge/:id/status", cache("5 minutes"), async (request, response) => {
allowAllOrigin(response);
const {
label,
upLabel = "Up",
downLabel = "Down",
pendingLabel = "Pending",
maintenanceLabel = "Maintenance",
upColor = badgeConstants.defaultUpColor,
downColor = badgeConstants.defaultDownColor,
pendingColor = badgeConstants.defaultPendingColor,
maintenanceColor = badgeConstants.defaultMaintenanceColor,
style = badgeConstants.defaultStyle,
value, // for demo purpose only
} = request.query;
try {
const requestedMonitorId = parseInt(request.params.id, 10);
const overrideValue = value !== undefined ? parseInt(value) : undefined;
let publicMonitor = await R.getRow(`
SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
WHERE monitor_group.group_id = \`group\`.id
AND monitor_group.monitor_id = ?
AND public = 1
`,
[ requestedMonitorId ]
);
const badgeValues = { style };
if (!publicMonitor) {
// return a "N/A" badge in naColor (grey), if monitor is not public / not available / non exsitant
badgeValues.message = "N/A";
badgeValues.color = badgeConstants.naColor;
} else {
const heartbeat = await Monitor.getPreviousHeartbeat(requestedMonitorId);
const state = overrideValue !== undefined ? overrideValue : heartbeat.status;
if (label === undefined) {
badgeValues.label = "Status";
} else {
badgeValues.label = label;
}
switch (state) {
case DOWN:
badgeValues.color = downColor;
badgeValues.message = downLabel;
break;
case UP:
badgeValues.color = upColor;
badgeValues.message = upLabel;
break;
case PENDING:
badgeValues.color = pendingColor;
badgeValues.message = pendingLabel;
break;
case MAINTENANCE:
badgeValues.color = maintenanceColor;
badgeValues.message = maintenanceLabel;
break;
default:
badgeValues.color = badgeConstants.naColor;
badgeValues.message = "N/A";
}
}
// build the svg based on given values
const svg = makeBadge(badgeValues);
response.type("image/svg+xml");
response.send(svg);
} catch (error) {
sendHttpError(response, error.message);
}
});
router.get("/api/badge/:id/uptime/:duration?", cache("5 minutes"), async (request, response) => {
allowAllOrigin(response);
const {
label,
labelPrefix,
labelSuffix = badgeConstants.defaultUptimeLabelSuffix,
prefix,
suffix = badgeConstants.defaultUptimeValueSuffix,
color,
labelColor,
style = badgeConstants.defaultStyle,
value, // for demo purpose only
} = request.query;
try {
const requestedMonitorId = parseInt(request.params.id, 10);
// if no duration is given, set value to 24 (h)
let requestedDuration = request.params.duration !== undefined ? request.params.duration : "24h";
const overrideValue = value && parseFloat(value);
if (/^[0-9]+$/.test(requestedDuration)) {
requestedDuration = `${requestedDuration}h`;
}
let publicMonitor = await R.getRow(`
SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
WHERE monitor_group.group_id = \`group\`.id
AND monitor_group.monitor_id = ?
AND public = 1
`,
[ requestedMonitorId ]
);
const badgeValues = { style };
if (!publicMonitor) {
// return a "N/A" badge in naColor (grey), if monitor is not public / not available / non existent
badgeValues.message = "N/A";
badgeValues.color = badgeConstants.naColor;
} else {
const uptimeCalculator = await UptimeCalculator.getUptimeCalculator(requestedMonitorId);
const uptime = overrideValue ?? uptimeCalculator.getDataByDuration(requestedDuration).uptime;
// limit the displayed uptime percentage to four (two, when displayed as percent) decimal digits
const cleanUptime = (uptime * 100).toPrecision(4);
// use a given, custom color or calculate one based on the uptime value
badgeValues.color = color ?? percentageToColor(uptime);
// use a given, custom labelColor or use the default badge label color (defined by badge-maker)
badgeValues.labelColor = labelColor ?? "";
// build a label string. If a custom label is given, override the default one (requestedDuration)
badgeValues.label = filterAndJoin([
labelPrefix,
label ?? `Uptime (${requestedDuration.slice(0, -1)}${labelSuffix})`,
]);
badgeValues.message = filterAndJoin([ prefix, cleanUptime, suffix ]);
}
// build the SVG based on given values
const svg = makeBadge(badgeValues);
response.type("image/svg+xml");
response.send(svg);
} catch (error) {
sendHttpError(response, error.message);
}
});
router.get("/api/badge/:id/ping/:duration?", cache("5 minutes"), async (request, response) => {
allowAllOrigin(response);
const {
label,
labelPrefix,
labelSuffix = badgeConstants.defaultPingLabelSuffix,
prefix,
suffix = badgeConstants.defaultPingValueSuffix,
color = badgeConstants.defaultPingColor,
labelColor,
style = badgeConstants.defaultStyle,
value, // for demo purpose only
} = request.query;
try {
const requestedMonitorId = parseInt(request.params.id, 10);
// Default duration is 24 (h) if not defined in queryParam, limited to 720h (30d)
let requestedDuration = request.params.duration !== undefined ? request.params.duration : "24h";
const overrideValue = value && parseFloat(value);
if (/^[0-9]+$/.test(requestedDuration)) {
requestedDuration = `${requestedDuration}h`;
}
// Check if monitor is public
const uptimeCalculator = await UptimeCalculator.getUptimeCalculator(requestedMonitorId);
const publicAvgPing = uptimeCalculator.getDataByDuration(requestedDuration).avgPing;
const badgeValues = { style };
if (!publicAvgPing) {
// return a "N/A" badge in naColor (grey), if monitor is not public / not available / non exsitant
badgeValues.message = "N/A";
badgeValues.color = badgeConstants.naColor;
} else {
const avgPing = parseInt(overrideValue ?? publicAvgPing);
badgeValues.color = color;
// use a given, custom labelColor or use the default badge label color (defined by badge-maker)
badgeValues.labelColor = labelColor ?? "";
// build a lable string. If a custom label is given, override the default one (requestedDuration)
badgeValues.label = filterAndJoin([ labelPrefix, label ?? `Avg. Ping (${requestedDuration.slice(0, -1)}${labelSuffix})` ]);
badgeValues.message = filterAndJoin([ prefix, avgPing, suffix ]);
}
// build the SVG based on given values
const svg = makeBadge(badgeValues);
response.type("image/svg+xml");
response.send(svg);
} catch (error) {
sendHttpError(response, error.message);
}
});
router.get("/api/badge/:id/avg-response/:duration?", cache("5 minutes"), async (request, response) => {
allowAllOrigin(response);
const {
label,
labelPrefix,
labelSuffix,
prefix,
suffix = badgeConstants.defaultPingValueSuffix,
color = badgeConstants.defaultPingColor,
labelColor,
style = badgeConstants.defaultStyle,
value, // for demo purpose only
} = request.query;
try {
const requestedMonitorId = parseInt(request.params.id, 10);
// Default duration is 24 (h) if not defined in queryParam, limited to 720h (30d)
const requestedDuration = Math.min(
request.params.duration
? parseInt(request.params.duration, 10)
: 24,
720
);
const overrideValue = value && parseFloat(value);
const sqlHourOffset = Database.sqlHourOffset();
const publicAvgPing = parseInt(await R.getCell(`
SELECT AVG(ping) FROM monitor_group, \`group\`, heartbeat
WHERE monitor_group.group_id = \`group\`.id
AND heartbeat.time > ${sqlHourOffset}
AND heartbeat.ping IS NOT NULL
AND public = 1
AND heartbeat.monitor_id = ?
`,
[ -requestedDuration, requestedMonitorId ]
));
const badgeValues = { style };
if (!publicAvgPing) {
// return a "N/A" badge in naColor (grey), if monitor is not public / not available / non existent
badgeValues.message = "N/A";
badgeValues.color = badgeConstants.naColor;
} else {
const avgPing = parseInt(overrideValue ?? publicAvgPing);
badgeValues.color = color;
// use a given, custom labelColor or use the default badge label color (defined by badge-maker)
badgeValues.labelColor = labelColor ?? "";
// build a label string. If a custom label is given, override the default one (requestedDuration)
badgeValues.label = filterAndJoin([
labelPrefix,
label ?? `Avg. Response (${requestedDuration}h)`,
labelSuffix,
]);
badgeValues.message = filterAndJoin([ prefix, avgPing, suffix ]);
}
// build the SVG based on given values
const svg = makeBadge(badgeValues);
response.type("image/svg+xml");
response.send(svg);
} catch (error) {
sendHttpError(response, error.message);
}
});
router.get("/api/badge/:id/cert-exp", cache("5 minutes"), async (request, response) => {
allowAllOrigin(response);
const date = request.query.date;
const {
label,
labelPrefix,
labelSuffix,
prefix,
suffix = date ? "" : badgeConstants.defaultCertExpValueSuffix,
upColor = badgeConstants.defaultUpColor,
warnColor = badgeConstants.defaultWarnColor,
downColor = badgeConstants.defaultDownColor,
warnDays = badgeConstants.defaultCertExpireWarnDays,
downDays = badgeConstants.defaultCertExpireDownDays,
labelColor,
style = badgeConstants.defaultStyle,
value, // for demo purpose only
} = request.query;
try {
const requestedMonitorId = parseInt(request.params.id, 10);
const overrideValue = value && parseFloat(value);
let publicMonitor = await R.getRow(`
SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
WHERE monitor_group.group_id = \`group\`.id
AND monitor_group.monitor_id = ?
AND public = 1
`,
[ requestedMonitorId ]
);
const badgeValues = { style };
if (!publicMonitor) {
// return a "N/A" badge in naColor (grey), if monitor is not public / not available / non existent
badgeValues.message = "N/A";
badgeValues.color = badgeConstants.naColor;
} else {
const tlsInfoBean = await R.findOne("monitor_tls_info", "monitor_id = ?", [
requestedMonitorId,
]);
if (!tlsInfoBean) {
// return a "No/Bad Cert" badge in naColor (grey), if no cert saved (does not save bad certs?)
badgeValues.message = "No/Bad Cert";
badgeValues.color = badgeConstants.naColor;
} else {
const tlsInfo = JSON.parse(tlsInfoBean.info_json);
if (!tlsInfo.valid) {
// return a "Bad Cert" badge in naColor (grey), when cert is not valid
badgeValues.message = "Bad Cert";
badgeValues.color = downColor;
} else {
const daysRemaining = parseInt(overrideValue ?? tlsInfo.certInfo.daysRemaining);
if (daysRemaining > warnDays) {
badgeValues.color = upColor;
} else if (daysRemaining > downDays) {
badgeValues.color = warnColor;
} else {
badgeValues.color = downColor;
}
// use a given, custom labelColor or use the default badge label color (defined by badge-maker)
badgeValues.labelColor = labelColor ?? "";
// build a label string. If a custom label is given, override the default one
badgeValues.label = filterAndJoin([
labelPrefix,
label ?? "Cert Exp.",
labelSuffix,
]);
badgeValues.message = filterAndJoin([ prefix, date ? tlsInfo.certInfo.validTo : daysRemaining, suffix ]);
}
}
}
// build the SVG based on given values
const svg = makeBadge(badgeValues);
response.type("image/svg+xml");
response.send(svg);
} catch (error) {
sendHttpError(response, error.message);
}
});
router.get("/api/badge/:id/response", cache("5 minutes"), async (request, response) => {
allowAllOrigin(response);
const {
label,
labelPrefix,
labelSuffix,
prefix,
suffix = badgeConstants.defaultPingValueSuffix,
color = badgeConstants.defaultPingColor,
labelColor,
style = badgeConstants.defaultStyle,
value, // for demo purpose only
} = request.query;
try {
const requestedMonitorId = parseInt(request.params.id, 10);
const overrideValue = value && parseFloat(value);
let publicMonitor = await R.getRow(`
SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
WHERE monitor_group.group_id = \`group\`.id
AND monitor_group.monitor_id = ?
AND public = 1
`,
[ requestedMonitorId ]
);
const badgeValues = { style };
if (!publicMonitor) {
// return a "N/A" badge in naColor (grey), if monitor is not public / not available / non existent
badgeValues.message = "N/A";
badgeValues.color = badgeConstants.naColor;
} else {
const heartbeat = await Monitor.getPreviousHeartbeat(
requestedMonitorId
);
if (!heartbeat.ping) {
// return a "N/A" badge in naColor (grey), if previous heartbeat has no ping
badgeValues.message = "N/A";
badgeValues.color = badgeConstants.naColor;
} else {
const ping = parseInt(overrideValue ?? heartbeat.ping);
badgeValues.color = color;
// use a given, custom labelColor or use the default badge label color (defined by badge-maker)
badgeValues.labelColor = labelColor ?? "";
// build a label string. If a custom label is given, override the default one
badgeValues.label = filterAndJoin([
labelPrefix,
label ?? "Response",
labelSuffix,
]);
badgeValues.message = filterAndJoin([ prefix, ping, suffix ]);
}
}
// build the SVG based on given values
const svg = makeBadge(badgeValues);
response.type("image/svg+xml");
response.send(svg);
} catch (error) {
sendHttpError(response, error.message);
}
});
/**
* Determines the status of the next beat in the push route handling.
* @param {string} status - The reported new status.
* @param {object} previousHeartbeat - The previous heartbeat object.
* @param {number} maxretries - The maximum number of retries allowed.
* @param {boolean} isUpsideDown - Indicates if the monitor is upside down.
* @param {object} bean - The new heartbeat object.
* @returns {void}
*/
function determineStatus(status, previousHeartbeat, maxretries, isUpsideDown, bean) {
if (isUpsideDown) {
status = flipStatus(status);
}
if (previousHeartbeat) {
if (previousHeartbeat.status === UP && status === DOWN) {
// Going Down
if ((maxretries > 0) && (previousHeartbeat.retries < maxretries)) {
// Retries available
bean.retries = previousHeartbeat.retries + 1;
bean.status = PENDING;
} else {
// No more retries
bean.retries = 0;
bean.status = DOWN;
}
} else if (previousHeartbeat.status === PENDING && status === DOWN && previousHeartbeat.retries < maxretries) {
// Retries available
bean.retries = previousHeartbeat.retries + 1;
bean.status = PENDING;
} else {
// No more retries or not pending
if (status === DOWN) {
bean.retries = previousHeartbeat.retries + 1;
bean.status = status;
} else {
bean.retries = 0;
bean.status = status;
}
}
} else {
// First beat?
if (status === DOWN && maxretries > 0) {
// Retries available
bean.retries = 1;
bean.status = PENDING;
} else {
// Retires not enabled
bean.retries = 0;
bean.status = status;
}
}
}
module.exports = router;