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* Authentic Theme (https://github.com/authentic-theme/authentic-theme)
* Copyright Ilia Rostovtsev <ilia@virtualmin.com>
* Licensed under MIT (https://github.com/authentic-theme/authentic-theme/blob/master/LICENSE)
*/
/* jshint strict: true */
/* jshint esversion: 6 */
/* jshint jquery: true */
"use strict";
// Stats module
const stats = {
sys: {
// Define variables
error: 0,
tried: 0,
activating: 0,
requery: null,
socket: null,
// Import globals
/* jshint -W117 */
_: {
prefix: v___location_prefix,
error: connection_error,
language: theme_language,
convert: {
size: Convert.nice_size,
},
chart: Chartist,
dayjs: dayjs,
locale: {
time: config_portable_theme_locale_format_time,
offset: () => {
return get_utc_offset();
},
},
can_conn_ws: can_conn_ws,
blocked: theme_updating,
getHistoryData: function () {
return vars.stats.history;
},
},
// Define reusable selectors
selector: {
chart: {
container: {
parent: "live_stats",
data: "data-chart",
},
loader: "data-charts-loader",
},
collapse: "collapse",
dashboard: "system-status",
slider: "info-container",
piechart: "piechart",
},
// Get current data to submit to the socket
getSocketDefs: function () {
return {
session: session.server.data("session-hash"),
paused: !this.canRender() ? 1 : 0,
interval: this.getInterval(),
disable: !this.isEnabled() ? 1 : 0,
shutdown: settings_sysinfo_real_time_shutdown_on_last ? 1 : 0,
};
},
// Update settings for the current client on the socket server
// updateSocket: function () {
// if (this.isEnabled() && this.socket &&
// this.socket.readyState === 1) {
// const socketData = this.getSocketDefs();
// // Update socket settings
// this.socket.send(JSON.stringify(socketData));
// }
// },
// Check if graphs can be rendered
graphsCanPreRender: function () {
return document.querySelector(`[${this.selector.chart.loader}]`) ? 1 : 0;
},
// Get interval call for the stats update
getInterval: function () {
return settings_sysinfo_real_time_run_rate / 1000;
},
// Get the stored data duration period (e.g., from 300 to 3600 seconds)
getStoredDuration: function () {
return settings_sysinfo_real_time_stored_duration;
},
// Check if the received data has multiple datasets
getRenderType: function(graphs) {
graphs = graphs.graphs;
let hasMultipleDatasets = false;
for (const key in graphs) {
if (graphs.hasOwnProperty(key) && Array.isArray(graphs[key])) {
if (graphs[key].length > 1) {
hasMultipleDatasets = true;
break;
}
}
}
// Received graphs stats have history
// data (3) or a single slice (null)
return hasMultipleDatasets ? 3 : null;
},
// Can we update the stats in the UI?
canRender: function() {
return theme.visibility.get();
},
// Check if the stats are enabled
isEnabled: function () {
const stats_enabled = settings_sysinfo_real_time_status ? 1 : 0,
stats_can = this._.can_conn_ws();
return stats_enabled && stats_can;
},
// Restart the stats by shutting down and enabling them
restart: function () {
this.shutdown();
setTimeout(() => {
this.enable();
}, this.getInterval() * 1000 * 4);
},
// Disable the stats broadcast for the client
disable: function () {
if (this.socket && this.socket.readyState === 1) {
// console.warn("Disabling stats broadcast");
const socketData = this.getSocketDefs();
socketData.paused = 1;
this.socket.send(JSON.stringify(socketData));
}
},
// Enable the stats broadcast for the client
enable: function () {
if (this.isEnabled()) {
// console.warn("Enabling stats broadcast");
if (this.graphsCanPreRender()) {
this.preRender();
}
if (this.socket) {
// console.warn("Sending ..", this.socket.readyState === 1),
this.socket.readyState === 1 &&
this.socket.send(JSON.stringify(this.getSocketDefs()));
} else {
// console.warn("Activating .."),
this.activate();
}
}
},
// Shutdown the stats broadcast for all
// clients by shutting down the socket
shutdown: function () {
if (this.socket && this.socket.readyState === 1) {
const socketData = this.getSocketDefs();
socketData.disable = 1;
this.socket.send(JSON.stringify(socketData));
}
},
// Activate the stats server unless already up and open
// the socket to receive the data for the current tab
activate: function () {
// Already called for this tab?
if (this.activating++ ||
this._.blocked() ||
this.socket) {
return;
}
// Tried too many times?
if (this.tried++ > 4) {
return;
}
$.ajax({
context: this,
url: `${this._.prefix}/stats.cgi`,
error: function () {
// Reset activating flag
this.activating = 0;
// Show error
if (this.error++ > 3) {
return;
}
// Retry again
!this.requery &&
(this.requery = setTimeout(() => {
this.requery = null;
this.activate();
}, this.getInterval() * 1000 * 4));
},
success: function (data) {
// Do we have socket opened?
if (data.success) {
// Open socket
// console.warn("WebSocket connection opened", data);
this.socket = new WebSocket(data.socket);
// On socket open
this.socket.onopen = () => {
this.tried = 0;
this.activating = 0;
// console.log("WebSocket connection established",
// this.getSocketDefs());
this.socket.send(
JSON.stringify(this.getSocketDefs()));
};
// On socket message
this.socket.onmessage = (event) => {
const message = JSON.parse(event.data),
renderType = this.getRenderType(message);
// Pause stats broadcast for this client
// if the tab is not visible
// err: no need, as redundant with enable/disable?
// if (this.canRender.last != this.canRender()) {
// console.log("Visibility changed", this.canRender());
// this.canRender.last = this.canRender();
// this.updateSocket();
// }
// console.log("Received stats", renderType, message);
this.render(message, renderType);
};
// On socket close
this.socket.onclose = () => {
// console.warn("WebSocket connection closed");
setTimeout(() => {
this.socket = null;
this.activating = 0;
this.enable();
}, this.getInterval() * 1000 * 4);
};
} else {
// Reset activating flag
this.activating = 0;
}
// Reset error counter
this.error = 0;
},
dataType: "json",
});
},
// Draw initial graphs either using stored data or empty placeholders
preRender: function () {
this.render(this._.getHistoryData(), 2);
},
// Display changes
render: function (data, graphs) {
// Iterate through response
Object.entries(data).map(([target, data]) => {
let v = parseInt(data),
vo = typeof data === "object" ? data[data.length - 1] : false,
vt = vo ? vo : v,
$pc = $(
`#${this.selector.dashboard} .${this.selector.piechart}[data-charts*="${target}"]`
),
$lc = $(`.${this.selector.slider} .${target}_percent`),
$od = $(`#${this.selector.dashboard} span[data-id="sysinfo_${target}"],
.${this.selector.slider} span[data-data="${target}"]`),
cached = target === "graphs" ? (graphs ? (graphs === 3 ? 3 : 2) : (this.graphsCanPreRender() ? 2 : 1)) : 0;
if (Number.isInteger(v)) {
// Update pie-charts
if ($pc.length) {
let piechart = $pc.data("easyPieChart");
piechart && piechart.update(v);
}
// Update line-charts
if ($lc.length) {
$lc.find(".bar").attr("style", "width:" + v + "%");
// Update line-charts' text
let $dp = $lc.find(".description"),
$lb = $dp.text().split(":")[0],
uv = $lb + ": " + v + "% (" + vo + ")";
// Flatten and plunk the data for some graphs
if (target !== "cpu") {
uv = plugins.slider.update.stats.graphs.flatten(uv);
if (target !== "virt") {
uv = plugins.slider.update.stats.graphs.plunk(uv);
}
}
$dp.attr("title", vo).text(uv);
}
// Update other data
if ($od.length) {
if ($od.find("a").length) {
$od.find("a").text(vt);
} else {
$od.text(vt);
}
}
}
// Draw history graphs
if (cached) {
let lds = `${this.selector.chart.container.parent}-${this.selector.collapse}`,
ld = $(`#${lds}`).find(`[${this.selector.chart.loader}]`);
// Process each supplied graph
Object.entries(data).map(([type, array]) => {
let options = {
chart: {
type: () => {
return type === "proc" || type === "disk" || type === "net";
},
bandwidth: () => {
return type === "disk" || type === "net";
},
fill: function () {
return this.type() ? false : true;
},
high: function () {
return this.type() ? undefined : 100;
},
threshold: function () {
return this.type() ? -1 : 80;
},
height: "100px",
},
},
lg = this._.language(`${this.selector.chart.container.parent}_${type}`),
tg = $(`#${lds}`).find(
`[${this.selector.chart.container.data}=${type}]`
),
sr = [
{
name: `series-${type}`,
data: array,
},
];
// Don't run further in case there is no container
if (!tg.length) {
return;
}
// Extend data object expected way to draw multiple series in single graph
if (array[0] && typeof array[0].y === "object") {
sr = [];
array[0].y.forEach(function (x, i) {
let data = [];
array.forEach(function (n) {
data.push({
data: { x: n.x, y: n.y[i] },
});
});
sr.push({
name: `series-${type}-${i}`,
data: data,
});
});
}
// Update series if chart already
// exist unless it's a re-draw
if (tg[0] && tg[0].textContent && cached !== 3) {
if (cached === 1) {
let lf = parseInt(this.getStoredDuration());
if (lf < 300 || lf > 3600) {
lf = 600;
}
let tdata = sr,
cdata = this[`chart_${type}`].data.series,
cdata_start,
cdata_end,
cdata_ready = new Promise((resolve) => {
tdata.forEach(function (d, i, a) {
cdata_start =
cdata[i].data[0].x || cdata[i].data[0].data.x;
cdata_end =
cdata[i].data[cdata[i].data.length - 1].x ||
cdata[i].data[cdata[i].data.length - 1].data.x;
cdata[i].data.push(d.data[0]);
if (cdata_end - cdata_start > lf) {
cdata[i].data.shift();
}
if (i === a.length - 1) {
resolve();
}
});
});
cdata_ready.then(() => {
this[`chart_${type}`].update({
series: cdata,
});
});
}
}
// Initialize chart the first time (2) or fully
// update (3) the chart if it's already drawn
else if (cached === 2 || cached === 3) {
this[`chart_${type}`] = new this._.chart.Line(
tg[0],
{
series: sr,
},
{
axisX: {
type: this._.chart.FixedScaleAxis,
divisor: 12,
labelInterpolationFnc: (value) => {
return this._.dayjs(value * 1000)
.utcOffset(this._.locale.offset())
.format(this._.locale.time);
},
},
height: options.chart.height,
showArea: options.chart.fill(),
showPoint: !options.chart.fill(),
high: options.chart.high(),
low: 0,
fullWidth: true,
chartPadding: {
left: 25,
},
axisY: {
onlyInteger: true,
labelInterpolationFnc: (value) => {
if (options.chart.fill()) {
return value ? value + "%" : value;
} else if (options.chart.bandwidth(value)) {
if (type === "net") {
return value
? this._.convert.size(value, {
fixed: 0,
bits: 1,
round: 1,
})
: value;
}
return value
? this._.convert.size(value * 1024, {
fixed: 0,
round: 1,
})
: value;
} else {
return value;
}
},
},
plugins: [
this._.chart.plugins.ctAxisTitle({
axisY: {
axisTitle: lg,
axisClass: "ct-axis-title",
offset: {
x: 0,
y: 9,
},
flipTitle: true,
},
}),
this._.chart.plugins.ctThreshold({
threshold: options.chart.threshold(),
}),
],
}
);
// Remove loader
this[`chart_${type}`].on("created", () => ld.remove());
}
});
}
});
},
},
};
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