uptime-kuma/server/plugins-manager.js

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const fs = require("fs");
const { log } = require("../src/util");
const path = require("path");
const axios = require("axios");
const { Git } = require("./git");
const childProcess = require("child_process");
class PluginsManager {
static disable = false;
/**
* Plugin List
* @type {PluginWrapper[]}
*/
pluginList = [];
/**
* Plugins Dir
*/
pluginsDir;
server;
/**
*
* @param {UptimeKumaServer} server
*/
constructor(server) {
this.server = server;
if (!PluginsManager.disable) {
this.pluginsDir = "./data/plugins/";
if (! fs.existsSync(this.pluginsDir)) {
fs.mkdirSync(this.pluginsDir, { recursive: true });
}
log.debug("plugin", "Scanning plugin directory");
let list = fs.readdirSync(this.pluginsDir);
this.pluginList = [];
for (let item of list) {
this.loadPlugin(item);
}
} else {
log.warn("PLUGIN", "Skip scanning plugin directory");
}
}
/**
* Install a Plugin
*/
async loadPlugin(name) {
log.info("plugin", "Load " + name);
let plugin = new PluginWrapper(this.server, this.pluginsDir + name);
try {
await plugin.load();
this.pluginList.push(plugin);
} catch (e) {
log.error("plugin", "Failed to load plugin: " + this.pluginsDir + name);
log.error("plugin", "Reason: " + e.message);
}
}
/**
* Download a Plugin
* @param {string} repoURL Git repo url
* @param {string} name Directory name, also known as plugin unique name
*/
downloadPlugin(repoURL, name) {
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if (fs.existsSync(this.pluginsDir + name)) {
log.info("plugin", "Plugin folder already exists? Removing...");
fs.rmSync(this.pluginsDir + name, {
recursive: true
});
}
log.info("plugin", "Installing plugin: " + name + " " + repoURL);
let result = Git.clone(repoURL, this.pluginsDir, name);
log.info("plugin", "Install result: " + result);
}
/**
* Remove a plugin
* @param {string} name
*/
async removePlugin(name) {
log.info("plugin", "Removing plugin: " + name);
for (let plugin of this.pluginList) {
if (plugin.info.name === name) {
await plugin.unload();
// Delete the plugin directory
fs.rmSync(this.pluginsDir + name, {
recursive: true
});
this.pluginList.splice(this.pluginList.indexOf(plugin), 1);
return;
}
}
log.warn("plugin", "Plugin not found: " + name);
throw new Error("Plugin not found: " + name);
}
/**
* TODO: Update a plugin
* Only available for plugins which were downloaded from the official list
* @param pluginID
*/
updatePlugin(pluginID) {
}
/**
* Get the plugin list from server + local installed plugin list
* Item will be merged if the `name` is the same.
* @returns {Promise<[]>}
*/
async fetchPluginList() {
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let remotePluginList;
try {
const res = await axios.get("https://uptime.kuma.pet/c/plugins.json");
remotePluginList = res.data.pluginList;
} catch (e) {
log.error("plugin", "Failed to fetch plugin list: " + e.message);
remotePluginList = [];
}
for (let plugin of this.pluginList) {
let find = false;
// Try to merge
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for (let remotePlugin of remotePluginList) {
if (remotePlugin.name === plugin.info.name) {
find = true;
remotePlugin.installed = true;
remotePlugin.name = plugin.info.name;
remotePlugin.fullName = plugin.info.fullName;
remotePlugin.description = plugin.info.description;
remotePlugin.version = plugin.info.version;
break;
}
}
// Local plugin
if (!find) {
plugin.info.local = true;
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remotePluginList.push(plugin.info);
}
}
// Sort Installed first, then sort by name
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return remotePluginList.sort((a, b) => {
if (a.installed === b.installed) {
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if (a.fullName < b.fullName) {
return -1;
}
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if (a.fullName > b.fullName) {
return 1;
}
return 0;
} else if (a.installed) {
return -1;
} else {
return 1;
}
});
}
}
class PluginWrapper {
server = undefined;
pluginDir = undefined;
/**
* Must be an `new-able` class.
* @type {function}
*/
pluginClass = undefined;
/**
*
* @type {Plugin}
*/
object = undefined;
info = {};
/**
*
* @param {UptimeKumaServer} server
* @param {string} pluginDir
*/
constructor(server, pluginDir) {
this.server = server;
this.pluginDir = pluginDir;
}
async load() {
let indexFile = this.pluginDir + "/index.js";
let packageJSON = this.pluginDir + "/package.json";
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log.info("plugin", "Installing dependencies");
if (fs.existsSync(indexFile)) {
// Install dependencies
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let result = childProcess.spawnSync("npm", [ "install" ], {
cwd: this.pluginDir,
env: {
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...process.env,
PLAYWRIGHT_BROWSERS_PATH: "../../browsers", // Special handling for read-browser-monitor
}
});
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if (result.stdout) {
log.info("plugin", "Install dependencies result: " + result.stdout.toString("utf-8"));
} else {
log.warn("plugin", "Install dependencies result: no output");
}
this.pluginClass = require(path.join(process.cwd(), indexFile));
let pluginClassType = typeof this.pluginClass;
if (pluginClassType === "function") {
this.object = new this.pluginClass(this.server);
await this.object.load();
} else {
throw new Error("Invalid plugin, it does not export a class");
}
if (fs.existsSync(packageJSON)) {
this.info = require(path.join(process.cwd(), packageJSON));
} else {
this.info.fullName = this.pluginDir;
this.info.name = "[unknown]";
this.info.version = "[unknown-version]";
}
this.info.installed = true;
log.info("plugin", `${this.info.fullName} v${this.info.version} loaded`);
}
}
async unload() {
await this.object.unload();
}
}
module.exports = {
PluginsManager,
PluginWrapper
};