Starbeamrainbowlabs
9ac878f261
This particular table contains information about the currently running systemquery instance. TODO: Add other interesting things such as # of connected peers etc.
56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
JavaScript
"use strict";
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import path from 'path';
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import fs from 'fs';
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import sysinfo from 'systeminformation';
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import log from '../../lib/io/NamespacedLog.mjs'; const l = log("infobroker");
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// HACK: Make sure __dirname is defined when using es6 modules. I forget where I found this - a PR with a source URL would be great :D
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const __dirname = import.meta.url.slice(7, import.meta.url.lastIndexOf("/"));
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class InfoBroker {
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constructor() {
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this.sym_meta = Symbol("____meta_info____")
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this.allowed_tables = {
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// name → sysinfo name
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cpu: "cpu",
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meta: this.sym_meta
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};
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}
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is_valid_table(name) {
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return Object.keys(this.allowed_tables).includes(name);
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}
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async make_table_meta() {
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return {
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version: JSON.parse(fs.promises.readFile(path.resolve(__dirname, "../../../package.json"), "utf-8")).version,
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versions_env: process.versions,
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pid: process.pid,
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uptime: process.uptime(),
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memory: process.memoryUsage(),
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};
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}
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async fetch_table(name) {
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if(!(typeof name === "string"))
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throw new Exception(`Error: Expected name to be of type string, but received value of type ${typeof name} instead.`);
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if(!this.is_valid_table(name)) {
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l.warn(`Unrecognised table '${name}' requested, returning null`);
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return null;
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}
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let name_translated = this.allowed_tables[name];
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if(name_translated === this.sym_meta)
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return await this.make_table_meta();
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return await sysinfo[name_translated]();
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}
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}
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export default InfoBroker;
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