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Remove junk from an old abandoned project

This commit is contained in:
Calvin Montgomery 2017-07-02 22:35:12 -07:00
parent 860775a90b
commit 00901f9cdb
9 changed files with 1 additions and 365 deletions
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23
src/backend/backendconfiguration.js
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@ -1,23 +0,0 @@
class BackendConfiguration {
constructor(config) {
this.config = config;
}
getRedisConfig() {
return this.config.redis;
}
getListenerConfig() {
return this.config.proxy.listeners.map(listener => ({
getHost() {
return listener.host;
},
getPort() {
return listener.port;
}
}));
}
}
export { BackendConfiguration };

93
src/backend/backendmodule.js
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@ -1,93 +0,0 @@
import { RedisClusterClient } from '../io/cluster/redisclusterclient';
import { DualClusterClient } from '../io/cluster/dualclusterclient';
import NullClusterClient from '../io/cluster/nullclusterclient';
import { FrontendPool } from 'cytube-common/lib/redis/frontendpool';
import RedisClientProvider from 'cytube-common/lib/redis/redisclientprovider';
import { loadFromToml } from 'cytube-common/lib/configuration/configloader';
import path from 'path';
import { BackendConfiguration } from './backendconfiguration';
import logger from 'cytube-common/lib/logger';
import redisAdapter from 'socket.io-redis';
import LegacyConfig from '../config';
import IOConfiguration from '../configuration/ioconfig';
import * as Switches from '../switches';
const BACKEND_CONFIG_PATH = path.resolve(__dirname, '..', '..', 'backend.toml');
class BackendModule {
constructor() {
this.initConfig();
}
initConfig() {
logger.initialize(null, null, LegacyConfig.get('debug'));
try {
this.backendConfig = loadFromToml(BackendConfiguration, BACKEND_CONFIG_PATH);
} catch (error) {
if (typeof error.line !== 'undefined') {
logger.error(`Error in configuration file: ${error} (line ${error.line})`);
} else {
logger.error(`Error loading configuration: ${error.stack}`);
}
process.exit(1);
}
}
onReady() {
const redisClientProvider = this.getRedisClientProvider();
this.redisAdapter = redisAdapter({
pubClient: redisClientProvider.get(),
// return_buffers is needed for msgpack-js to function correctly
subClient: redisClientProvider.get({ return_buffers: true })
});
this.sioEmitter = require('socket.io').instance;
this.sioEmitter.adapter(this.redisAdapter);
const IOBackend = require('./iobackend');
this.ioBackend = new IOBackend(
this.backendConfig.getListenerConfig()[0],
this.sioEmitter,
redisClientProvider.get()
)
}
getFrontendPool() {
if (!this.frontendPool) {
this.frontendPool = new FrontendPool(this.getRedisClientProvider().get());
}
return this.frontendPool;
}
getRedisClientProvider() {
if (!this.redisClientProvider) {
this.redisClientProvider = new RedisClientProvider(
this.backendConfig.getRedisConfig()
);
}
return this.redisClientProvider;
}
getClusterClient() {
if (!this.redisClusterClient) {
this.redisClusterClient = new RedisClusterClient(this.getFrontendPool());
}
if (Switches.isActive(Switches.DUAL_BACKEND) && !this.nullClusterClient) {
this.nullClusterClient = new NullClusterClient(
IOConfiguration.fromOldConfig(LegacyConfig));
}
if (Switches.isActive(Switches.DUAL_BACKEND)) {
this.clusterClient = new DualClusterClient(this.nullClusterClient,
this.redisClusterClient);
} else {
this.clusterClient = this.redisClusterClient;
}
return this.clusterClient;
}
}
export { BackendModule }

45
src/backend/iobackend.js
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@ -1,45 +0,0 @@
import Server from 'cytube-common/lib/proxy/server';
import ProxyInterceptor from './proxyinterceptor';
import uuid from 'uuid';
import PoolEntryUpdater from 'cytube-common/lib/redis/poolentryupdater';
import JSONProtocol from 'cytube-common/lib/proxy/protocol';
import { formatProxyAddress } from 'cytube-common/lib/util/addressutil';
const BACKEND_POOL = 'backend-hosts';
export default class IOBackend {
constructor(proxyListenerConfig, socketEmitter, poolRedisClient) {
this.proxyListenerConfig = proxyListenerConfig;
this.socketEmitter = socketEmitter;
this.poolRedisClient = poolRedisClient;
this.protocol = new JSONProtocol();
this.initProxyInterceptor();
this.initProxyListener();
this.initBackendPoolUpdater();
}
initProxyInterceptor() {
this.proxyInterceptor = new ProxyInterceptor(this.socketEmitter);
}
initProxyListener() {
this.proxyListener = new Server(this.proxyListenerConfig, this.protocol);
this.proxyListener.on('connection',
this.proxyInterceptor.onConnection.bind(this.proxyInterceptor));
}
initBackendPoolUpdater() {
const hostname = this.proxyListenerConfig.getHost();
const port = this.proxyListenerConfig.getPort();
const entry = {
address: formatProxyAddress(hostname, port)
}
this.poolEntryUpdater = new PoolEntryUpdater(
this.poolRedisClient,
BACKEND_POOL,
uuid.v4(),
entry
);
this.poolEntryUpdater.start();
}
}

54
src/backend/proxiedsocket.js
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@ -1,54 +0,0 @@
import logger from 'cytube-common/lib/logger';
import { EventEmitter } from 'events';
export default class ProxiedSocket extends EventEmitter {
constructor(socketID, socketIP, socketUser, socketEmitter, frontendConnection) {
super();
this.id = socketID;
this.ip = socketIP;
this._realip = socketIP;
if (socketUser) {
this.user = {
name: socketUser.name,
global_rank: socketUser.globalRank
};
}
this.socketEmitter = socketEmitter;
this.frontendConnection = frontendConnection;
}
emit() {
const target = this.socketEmitter.to(this.id);
target.emit.apply(target, arguments);
}
onProxiedEventReceived() {
try {
EventEmitter.prototype.emit.apply(this, arguments);
} catch (error) {
logger.error(`Emit failed: ${error.stack}`);
}
}
join(channel) {
this.frontendConnection.write(
this.frontendConnection.protocol.newSocketJoinRoomsEvent(
this.id, [channel]
)
);
}
leave(room) {
this.frontendConnection.write(
this.frontendConnection.protocol.newSocketLeaveRoomsEvent(
this.id, [room]
)
);
}
disconnect() {
this.frontendConnection.write(
this.frontendConnection.protocol.newSocketKickEvent(this.id)
);
}
}

91
src/backend/proxyinterceptor.js
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@ -1,91 +0,0 @@
import logger from 'cytube-common/lib/logger';
import ioServer from '../io/ioserver';
import ProxiedSocket from './proxiedsocket';
export default class ProxyInterceptor {
constructor(socketEmitter) {
this.socketEmitter = socketEmitter;
this.frontendConnections = {};
this.frontendProxiedSockets = {};
}
/**
* Handle a new frontend proxy connection.
*
* @param {Connection} socket frontend proxy connection
*/
onConnection(socket) {
if (this.frontendConnections.hasOwnProperty(socket.endpoint)) {
logger.error(`Duplicate frontend connection: ${socket.endpoint}`);
return;
}
logger.info(`Got proxy connection from ${socket.endpoint}`);
this.frontendConnections[socket.endpoint] = socket;
socket.on('close', this.onFrontendDisconnect.bind(this, socket));
socket.on('SocketConnectEvent', this.onSocketConnect.bind(this, socket));
socket.on('SocketFrameEvent', this.onSocketFrame.bind(this, socket));
socket.on('SocketDisconnectEvent', this.onSocketDisconnect.bind(this, socket));
}
onFrontendDisconnect(socket) {
const endpoint = socket.endpoint;
if (this.frontendConnections.hasOwnProperty(endpoint)) {
if (this.frontendProxiedSockets.hasOwnProperty(endpoint)) {
logger.warn(`Frontend ${endpoint} disconnected`);
for (const key in this.frontendProxiedSockets[endpoint]) {
const proxySocket = this.frontendProxiedSockets[endpoint][key];
proxySocket.onProxiedEventReceived('disconnect');
}
delete this.frontendProxiedSockets[endpoint];
}
delete this.frontendConnections[endpoint];
}
}
onSocketConnect(frontendConnection, socketID, socketIP, socketUser) {
const mapKey = frontendConnection.endpoint;
const proxiedSocket = new ProxiedSocket(
socketID,
socketIP,
socketUser,
this.socketEmitter,
frontendConnection);
if (!this.frontendProxiedSockets.hasOwnProperty(mapKey)) {
this.frontendProxiedSockets[mapKey] = {};
} else if (this.frontendProxiedSockets[mapKey].hasOwnProperty(socketID)) {
logger.error(`Duplicate SocketConnectEvent for ${socketID}`);
return;
}
this.frontendProxiedSockets[mapKey][socketID] = proxiedSocket;
ioServer.handleConnection(proxiedSocket);
}
onSocketFrame(frontendConnection, socketID, event, args) {
const mapKey = frontendConnection.endpoint;
const socketMap = this.frontendProxiedSockets[mapKey];
if (!socketMap || !socketMap.hasOwnProperty(socketID)) {
logger.error(`Received SocketFrameEvent for nonexistent socket`,
{ socketID, event });
return;
}
const socket = socketMap[socketID];
socket.onProxiedEventReceived.apply(socket, [event].concat(args));
}
onSocketDisconnect(frontendConnection, socketID) {
const mapKey = frontendConnection.endpoint;
const socketMap = this.frontendProxiedSockets[mapKey];
if (!socketMap || !socketMap.hasOwnProperty(socketID)) {
logger.error(`Received SocketDisconnectEvent for nonexistent socket`,
{ socketID });
return;
}
const socket = socketMap[socketID];
socket.onProxiedEventReceived.apply(socket, ['disconnect']);
}
}

27
src/io/cluster/dualclusterclient.js
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@ -1,27 +0,0 @@
import logger from 'cytube-common/lib/logger';
import * as Switches from '../../switches';
class DualClusterClient {
constructor(authoritativeClient, altClient) {
this.authoritativeClient = authoritativeClient;
this.altClient = altClient;
}
getSocketConfig(channel) {
return this.authoritativeClient.getSocketConfig(channel).then(result => {
if (!Switches.isActive(Switches.DUAL_BACKEND)) {
return result;
}
return this.altClient.getSocketConfig(channel).then(altResult => {
result.alt = altResult.servers;
return result;
}).catch(error => {
logger.warn(`Error loading alt servers: ${error}`);
return result;
});
})
}
}
export { DualClusterClient };

22
src/io/cluster/redisclusterclient.js
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@ -1,22 +0,0 @@
import Promise from 'bluebird';
const ONE_SECOND = 1000;
const ERR_TIMEOUT = 'Timed out when retrieving server information';
class RedisClusterClient {
constructor(frontendPool) {
this.frontendPool = frontendPool;
}
getSocketConfig(channel) {
return this.frontendPool.getFrontends(channel).then(result => {
if (!Array.isArray(result)) {
result = [];
}
return { servers: result };
}).timeout(ONE_SECOND, ERR_TIMEOUT);
}
}
export { RedisClusterClient };

9
src/server.js
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@ -64,15 +64,8 @@ var Server = function () {
self.servers = {};
self.chanPath = Config.get('channel-path');
// backend init
var initModule;
if (Config.get("new-backend")) {
if (Config.get("dual-backend")) {
Switches.setActive(Switches.DUAL_BACKEND, true);
}
const BackendModule = require('./backend/backendmodule').BackendModule;
initModule = this.initModule = new BackendModule();
} else if (Config.get('enable-partition')) {
if (Config.get('enable-partition')) {
initModule = this.initModule = new PartitionModule();
self.partitionDecider = initModule.getPartitionDecider();
} else {

2
src/switches.js
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@ -7,5 +7,3 @@ export function isActive(switchName) {
export function setActive(switchName, active) {
switches[switchName] = active;
}
export const DUAL_BACKEND = 'DUAL_BACKEND';