plugins-core/control/plugin.ts
2020-12-05 12:00:55 +02:00

558 lines
17 KiB
TypeScript

import {
Plugin,
EventListener,
Configurable,
IPluginManifest,
IPlugin,
} from '@squeebot/core/lib/plugin';
import { IChannel } from '@squeebot/core/lib/channel';
import { IRepoPluginDef, IRepository } from '@squeebot/core/lib/plugin/repository';
import { ISqueebotCore, logger } from '@squeebot/core/lib/core';
import path from 'path';
import fs from 'fs/promises';
import tls, { TLSSocket } from 'tls';
import net, { Server, Socket } from 'net';
/*
const sc = {
instances: {
type: 'array',
description: 'List of instances',
default: [],
format: {
name: {
type: 'string',
optional: true,
description: 'Instance name',
default: 'general',
},
restart: {
type: 'boolean',
optional: true,
description: 'Automatic restart on failure',
default: false,
},
irc: {
type: 'object',
format: {
nick: {
type: 'string',
default: 'Squeebot',
},
host: {
type: 'string',
default: 'localhost',
},
port: {
type: 'number',
default: 6667,
},
password: {
type: 'string',
optional: true,
},
sasl: {
type: 'boolean',
default: false,
},
ssl: {
type: 'boolean',
default: false,
},
channels: {
type: 'array',
entryType: 'string',
default: [],
},
nickserv: {
type: 'object',
format: {
enabled: {
type: 'boolean',
default: false,
},
command: {
type: 'string',
default: 'STATUS',
},
}
}
}
}
}
}
};
*/
const ControlCommands: { [key: string]: Function } = {
loadPlugin: async (p: ControlPlugin, plugin: string): Promise<void> => {
if (!plugin) {
throw new Error('This function takes 1 argument.');
}
p.stream.emitTo('core', 'pluginLoad', plugin);
},
unloadPlugin: async (p: ControlPlugin, plugin: string): Promise<void> => {
if (!plugin) {
throw new Error('This function takes 1 argument.');
}
p.stream.emitTo(plugin, 'pluginUnload', plugin);
},
listActivePlugins: async (p: ControlPlugin): Promise<IPluginManifest[]> => {
return p.core!.pluginManager.getLoaded().map((x: IPlugin) => x.manifest);
},
listInstalledPlugins: async (p: ControlPlugin): Promise<IPluginManifest[]> => {
return p.core!.pluginManager.availablePlugins;
},
installPlugin: async (p: ControlPlugin, plugin: string): Promise<IPluginManifest> => {
if (!plugin) {
throw new Error('This function takes 1 argument.');
}
return p.core!.repositoryManager.installPlugin(plugin);
},
uninstallPlugin: async (p: ControlPlugin, plugin: string): Promise<void> => {
if (!plugin) {
throw new Error('This function takes 1 argument.');
}
return p.core!.repositoryManager.uninstallPlugin(plugin);
},
enablePlugin: async (p: ControlPlugin, plugin: string): Promise<void> => {
if (!plugin) {
throw new Error('This function takes 1 argument.');
}
if (!p.core!.pluginManager.getAvailableByName(plugin)) {
throw new Error('No such plugin is available.');
}
if (!p.core!.config.config.enabled) {
p.core!.config.config.enabled = [plugin];
} else if (p.core!.config.config.enabled.indexOf(plugin) === -1) {
p.core!.config.config.enabled.push(plugin);
}
return p.core!.config.save();
},
disablePlugin: async (p: ControlPlugin, plugin: string): Promise<void> => {
if (!plugin) {
throw new Error('This function takes 1 argument.');
}
if (!p.core!.pluginManager.getAvailableByName(plugin)) {
throw new Error('No such plugin is available.');
}
if (!p.core!.config.config.enabled) {
return;
}
const indx = p.core!.config.config.enabled.indexOf(plugin);
if (indx > -1) {
p.core!.config.config.enabled.splice(indx, 1);
}
return p.core!.config.save();
},
installRepository: async (p: ControlPlugin, url: string): Promise<IRepository> => {
if (!url) {
throw new Error('This function takes 1 argument.');
}
return p.core!.repositoryManager.installRepository(url);
},
uninstallRepository: async (p: ControlPlugin, repo: string): Promise<void> => {
if (!repo) {
throw new Error('This function takes 1 argument.');
}
return p.core!.repositoryManager.uninstallRepository(repo);
},
listRepositoryPlugins: async (p: ControlPlugin, repo: string): Promise<IRepoPluginDef[]> => {
if (!repo) {
throw new Error('This function takes 1 argument.');
}
const repoData = p.core!.repositoryManager.getRepoByName(repo);
if (!repoData) {
throw new Error('No such repository found.');
}
return repoData.plugins;
},
listRepositories: async (p: ControlPlugin): Promise<IRepository[]> => {
return p.core!.repositoryManager.getAll();
},
updateRepository: async (p: ControlPlugin, repo: string): Promise<IPluginManifest[]> => {
if (!repo) {
throw new Error('This function takes 1 argument.');
}
const repoData = p.core!.repositoryManager.getRepoByName(repo);
if (!repoData) {
throw new Error('No such repository found.');
}
return p.core!.repositoryManager.checkForUpdates(repoData);
},
newChannel: async (p: ControlPlugin, name: string, plugins?: string[]): Promise<void> => {
if (!name) {
throw new Error('This function takes 1 argument.');
}
if (p.core!.channelManager.getChannelByName(name)) {
throw new Error('A channel by that name already exists!');
}
p.core!.channelManager.addChannel({
name,
plugins: plugins || [],
enabled: true,
});
},
removeChannel: async (p: ControlPlugin, name: string): Promise<void> => {
if (!name) {
throw new Error('This function takes 1 argument.');
}
const chan = p.core!.channelManager.getChannelByName(name);
if (!chan) {
throw new Error('A channel by that name does not exists!');
}
p.core!.channelManager.removeChannel(chan);
},
enableChannel: async (p: ControlPlugin, name: string): Promise<void> => {
if (!name) {
throw new Error('This function takes 1 argument.');
}
const chan = p.core!.channelManager.getChannelByName(name);
if (!chan) {
throw new Error('A channel by that name does not exists!');
}
chan.enabled = true;
p.core!.config.config.channels = p.core!.channelManager.getAll();
await p.core!.config.save();
},
disableChannel: async (p: ControlPlugin, name: string): Promise<void> => {
if (!name) {
throw new Error('This function takes 1 argument.');
}
const chan = p.core!.channelManager.getChannelByName(name);
if (!chan) {
throw new Error('A channel by that name does not exists!');
}
chan.enabled = false;
p.core!.config.config.channels = p.core!.channelManager.getAll();
await p.core!.config.save();
},
addChannelPlugin: async (p: ControlPlugin, name: string, plugins: string | string[]): Promise<void> => {
if (!name || !plugins) {
throw new Error('This function takes 2 arguments.');
}
const chan = p.core!.channelManager.getChannelByName(name);
if (!chan) {
throw new Error('A channel by that name does not exists!');
}
if (!Array.isArray(plugins)) {
plugins = [plugins];
}
for (const plugin of plugins) {
if (chan.plugins.indexOf(plugin) === -1) {
chan.plugins.push(plugin);
}
}
},
removeChannelPlugin: async (p: ControlPlugin, name: string, plugins: string | string[]): Promise<void> => {
if (!name || !plugins) {
throw new Error('This function takes 2 arguments.');
}
const chan = p.core!.channelManager.getChannelByName(name);
if (!chan) {
throw new Error('A channel by that name does not exists!');
}
if (!Array.isArray(plugins)) {
plugins = [plugins];
}
for (const plugin of plugins) {
const idx = chan.plugins.indexOf(plugin);
if (idx !== -1) {
chan.plugins.splice(idx, 1);
}
}
},
listChannels: async (p: ControlPlugin): Promise<IChannel[]> => {
return p.core!.channelManager.getAll();
},
getPluginConfig: async (p: ControlPlugin, name: string): Promise<any> => {
if (!name) {
throw new Error('This function takes 1 argument.');
}
const plugin = p.core!.pluginManager.getLoadedByName(name);
if (!plugin) {
throw new Error('No such plugin is currently running!');
}
return plugin.config.config;
},
getPluginConfigValue: async (p: ControlPlugin, name: string, key: string): Promise<any> => {
if (!name || !key) {
throw new Error('This function takes 2 arguments.');
}
const plugin = p.core!.pluginManager.getLoadedByName(name);
if (!plugin) {
throw new Error('No such plugin is currently running!');
}
return plugin.config.get(key);
},
getPluginConfigSchema: async (p: ControlPlugin, name: string): Promise<any> => {
if (!name) {
throw new Error('This function takes 1 argument.');
}
const plugin = p.plugins.get(name);
if (!plugin) {
throw new Error('This plugin has not registered a schema in control.');
}
return plugin;
},
setPluginConfig: async (p: ControlPlugin, name: string, config: any): Promise<any> => {
if (!name || !config) {
throw new Error('This function takes 2 arguments.');
}
const plugin = p.core!.pluginManager.getLoadedByName(name);
if (!plugin) {
throw new Error('No such plugin is currently running!');
}
plugin.config.config = config;
return plugin.config.save();
},
setPluginConfigValue: async (p: ControlPlugin, name: string, key: string, value: string): Promise<any> => {
if (!name || !key) {
throw new Error('This function takes 3 arguments.');
}
const plugin = p.core!.pluginManager.getLoadedByName(name);
if (!plugin) {
throw new Error('No such plugin is currently running!');
}
plugin.config.set(key, value);
return plugin.config.save();
},
};
declare type StringAny = {[key: string]: any};
const match = ['key', 'cert', 'ca', 'dhparam', 'crl', 'pfx'];
async function parseTLSConfig(tlsconfig: StringAny): Promise<StringAny> {
const result: StringAny = {};
for (const key in tlsconfig) {
if (key === 'enabled') {
continue;
}
if (match.indexOf(key) === -1) {
result[key] = tlsconfig[key];
continue;
}
const value = path.resolve(tlsconfig[key]);
const bf = await fs.readFile(value);
result[key] = bf;
}
return result;
}
@Configurable({
authorizedIPs: [],
tls: {
enabled: false,
key: '',
cert: '',
rejectUnauthorized: false,
requestCert: false,
},
bind: null,
})
class ControlPlugin extends Plugin {
public core: ISqueebotCore | null = null;
public plugins: Map<string, any> = new Map<string, any>();
private server: Server | null = null;
private sockets: Set<Socket> = new Set<Socket>();
public initialize(): void {
this.addEventListener('core', (core: ISqueebotCore) => this.core = core);
this.emitTo('core', 'request-core', this.name);
this.createSocket();
}
private errorToClient(socket: TLSSocket | Socket, error: Error): void {
socket.write(JSON.stringify({
status: 'ERROR',
message: error.message,
}) + '\r\n');
}
private handleClientLine(socket: TLSSocket | Socket, req: any): void {
if (!req.command || req.command === 'status') {
socket.write(JSON.stringify({
status: 'OK'
}) + '\r\n');
return;
}
if (req.command === 'quit') {
socket.end();
return;
}
let args = [];
const argField = req.args || req.argument || req.arguments;
if (argField) {
if (!Array.isArray(argField)) {
args = [argField];
} else {
args = argField;
}
}
this.executeControlCommand(req.command, args).then((cmdData) => {
try {
const response: any = { status: 'OK', command: req.command };
if (cmdData != null) {
if (Array.isArray(cmdData)) {
response.list = cmdData;
} else {
response.data = cmdData;
}
}
socket.write(JSON.stringify(response) + '\r\n');
} catch (e) {
this.errorToClient(socket, e);
}
}, (e) => this.errorToClient(socket, e));
}
private handleIncoming(socket: TLSSocket | Socket): void {
const c = this.config.config;
let addr = socket.remoteAddress;
if (addr?.indexOf('::ffff:') === 0) {
addr = addr.substr(7);
}
if (c.authorizedIPs &&
c.authorizedIPs.length &&
c.authorizedIPs.indexOf(addr) === -1) {
if (!(c.authorizedIPs.indexOf('localhost') !== -1 &&
(addr === '::1' || addr === '127.0.0.1'))) {
logger.warn('[%s] Unauthorized connection made from %s',
this.name, addr);
socket.destroy();
return;
}
}
this.sockets.add(socket);
socket.once('end', () => {
logger.log('[%s] Client from %s disconnected.', this.name, addr);
this.sockets.delete(socket);
});
logger.log('[%s] Client from %s connected.', this.name, addr);
socket.setEncoding('utf8');
socket.write(JSON.stringify({
status: 'OK',
commands: Object.keys(ControlCommands),
}) + '\r\n');
socket.on('data', (data) => {
try {
const split = data.split('\r\n');
for (const chunk of split) {
if (chunk === '') {
continue;
}
const req = JSON.parse(chunk);
this.handleClientLine(socket, req);
}
} catch (e) {
this.errorToClient(socket, e);
}
});
}
private createSocket(): void {
const c = this.config.config;
if (c.bind == null ||
c.bind === false) {
return;
}
if (c.tls && c.tls.enabled) {
if (!c.tls.rejectUnauthorized && (!c.authorizedIPs || !c.authorizedIPs.length)) {
logger.warn('[%s] [SECURITY WARNING] !!! YOUR CONTROL SOCKET IS (STILL) INSECURE !!!', this.name);
logger.warn('[%s] [SECURITY WARNING] You have enabled TLS, ' +
'but you do not have any form of access control configured.', this.name);
logger.warn('[%s] [SECURITY WARNING] In order to secure your control socket, ' +
'either enable invalid certificate rejection (rejectUnauthorized) or set a ' +
'list of authorized IPs.', this.name);
logger.warn('[%s] [SECURITY WARNING] !!! YOUR CONTROL SOCKET IS (STILL) INSECURE !!!', this.name);
}
parseTLSConfig(c.tls).then((options) => {
this.server = tls.createServer(options,
(socket) => this.handleIncoming(socket));
this.server.listen(c.bind, () => {
logger.log('[%s] Secure socket listening on %s',
this.name, c.bind.toString());
});
}, (err) => {
logger.error('[%s] Secure socket listen failed: %s',
this.name, err.message);
});
return;
}
if (!c.authorizedIPs || !c.authorizedIPs.length) {
logger.warn('[%s] [SECURITY WARNING] !!! YOUR CONTROL SOCKET IS INSECURE !!!', this.name);
logger.warn('[%s] [SECURITY WARNING] You do not have any form of access control configured.', this.name);
logger.warn('[%s] [SECURITY WARNING] In order to secure your control socket, ' +
'either enable TLS with certificate verification or set a list of authorized IPs.', this.name);
logger.warn('[%s] [SECURITY WARNING] !!! YOUR CONTROL SOCKET IS INSECURE !!!', this.name);
}
this.server = net.createServer((socket) => this.handleIncoming(socket));
this.server.listen(c.bind, () => {
logger.log('[%s] Socket listening on %s',
this.name, c.bind.toString());
});
}
public registerPluginConfigSchema(name: string, confspec?: any): void {
this.plugins.set(name, confspec);
}
public async executeControlCommand(command: string, args: string[]): Promise<any> {
if (!this.core) {
throw new Error('The control plugin cannot control the bot right now.');
}
if (!(command in ControlCommands)) {
throw new Error('No such command');
}
return ControlCommands[command].call(this, this, ...args);
}
@EventListener('pluginUnload')
public unloadEventHandler(plugin: string | Plugin): void {
if (plugin === this.name || plugin === this) {
logger.debug('[%s]', this.name, 'shutting down..');
if (this.server) {
logger.log('[%s] Stopping socket server..', this.name);
this.server.close();
for (const sock of this.sockets) {
sock.destroy();
}
this.sockets.clear();
}
this.plugins.clear();
this.config.save().then(() =>
this.emit('pluginUnloaded', this));
} else {
if (typeof plugin !== 'string') {
plugin = plugin.manifest.name;
}
this.plugins.delete(plugin);
}
}
}
module.exports = ControlPlugin;