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{ name: 'use_redis_mock', type: Boolean },
{ name: 'use_redis_server', type: Boolean }
]
const commandline = require('command-line-args')
const deepmerge = require('deepmerge')
const randomWords = require('random-words')
const RedisSessions = require('redis-sessions')
const argv = commandline(optionDefinitions, { partial: true, argv: process.argv })
const PapanUtils = require('../../common/utils.js')
const PapanServerUtils = require('../common/utils.js')
class PersistClient {
constructor ({ rs, client, redis }) {
const execIntercept = object => new Proxy(object, {
get: (target, prop, receiver) => {
if (prop !== 'exec') return (...args) => execIntercept(object[prop](...args))
return () => new Promise((resolve, reject) => {
object.exec((err, result) => {
if (err) reject(err)
resolve(result)
})
})
}
})
this._redis = redis
this._rs = rs
this._client = client
this._promised = PapanServerUtils.promisifyClass(client)
this._promised.multi = () => execIntercept(client.multi())
}
close () {
this._client.quit()
}
createSession (userId) {
return new Promise((resolve, reject) => {
this._rs.create({
app: 'papan',
id: userId,
ip: '1'
}, (err, resp) => {
if (err) reject(err)
resolve(resp.token)
})
})
}
getIdFromSession (session) {
return new Promise((resolve, reject) => {
this._rs.get({
app: 'papan',
token: session
}, (err, resp) => {
if (err) reject(err)
if (!resp.id) reject(Error('Empty session'))
resolve(resp.id)
})
})
}
getSessionData (session) {
return new Promise((resolve, reject) => {
this._rs.get({
app: 'papan',
token: session
}, (err, resp) => {
if (err) reject(err)
if (!resp.id) reject(Error('Empty session'))
resolve(resp.d)
})
})
}
setSessionData (session, data) {
return new Promise((resolve, reject) => {
this._rs.set({
app: 'papan',
token: session,
d: data
}, (err, resp) => {
if (err) reject(err)
if (!resp.id) reject(Error('Empty session'))
resolve(resp.d)
})
})
}
userSubscribe (userId, callback) {
const subscriber = this._redis.createClient()
const key = 'usersub:' + userId
subscriber.subscribe(key)
subscriber.on('message', (channel, message) => {
if (channel === key) {
callback(PapanUtils.JSON.parse(message))
}
})
const ret = {
subscriber: subscriber,
close: () => subscriber.unsubscribe(key)
}
return ret
}
sendUserMessage (userId, message) {
this._client.publish('usersub:' + userId, PapanUtils.JSON.stringify(message))
}
registerGameServer (id, games) {
let request = this._promised.multi().sadd('gameservers', id)
games.forEach(infoHash => {
request = request.sadd('game:' + infoHash, id)
})
return request.exec()
}
gameServerSubscribe (id, callback) {
const subscriber = this._redis.createClient()
const key = 'gamesub:' + id
subscriber.subscribe(key)
subscriber.on('message', (channel, message) => {
if (channel === key) {
callback(PapanUtils.JSON.parse(message))
}
})
return {
subscriber: subscriber,
close: () => subscriber.unsubscribe(key)
}
}
sendGameMessage (id, message) {
this._client.publish('gamesub:' + id, PapanUtils.JSON.stringify(message))
}
async getJoinedLobbies (data) {
const { id } = data
let results = await this._promised.smembers('user:' + id + ':lobbies')
if (!results) results = []
return Promise.all(results.map(id => this.getLobbyInfo({ id: id })))
}
async getLobbyInfo (data) {
const { id } = data
const members = (await this._promised.smembers('lobbymembers:' + id)).map(id => ({ id: id }))
const info = await this._promised.hgetall('lobbyinfo:' + id)
const gameId = await this._promised.get('lobbyinfo:' + id + ':gameid')
Iif (!info || !info.owner) throw Error('Lobby doesn\'t exist')
const playersInfoTree = {}
const teaminfo = await this._promised.hgetall('lobbyinfo:' + id + ':gameteaminfo:' + gameId)
const convertValue = (key, value) => {
switch (key) {
case 'order':
return parseInt(value)
case 'user':
return { id: value }
default:
return value
}
}
Object.keys(teaminfo || {}).filter(subKey => subKey.match(/^playerinfo:.*team:/)).sort().forEach(team => {
const matches = team.match(/^playerinfo:(.*):?team:(.*):(.*)$/)
const components = matches[1].split(':')
const id = matches[2]
const key = matches[3]
let parent = playersInfoTree
components.filter(id => id.length !== 0).forEach(id => {
parent = parent.teams[id]
})
if (!parent.teams) parent.teams = {}
if (!parent.teams[id]) parent.teams[id] = {}
parent.teams[id][key] = convertValue(key, teaminfo[team])
})
Object.keys(teaminfo || {}).filter(subkey => subkey.match(/^playerinfo:.*slot:/)).forEach(slot => {
const matches = slot.match(/^playerinfo:(.*):?slot:(.*):(.*)$/)
const components = matches[1].split(':')
const id = matches[2]
const key = matches[3]
let parent = playersInfoTree
components.filter(id => id.length !== 0).forEach(id => {
parent = parent.teams[id]
})
if (!parent.slots) parent.slots = {}
if (!parent.slots[id]) parent.slots[id] = {}
parent.slots[id][key] = convertValue(key, teaminfo[slot])
})
const convertTree = tree => {
const ret = {}
if (tree.slots) {
ret.slots = {}
ret.slots.slot = []
Object.keys(tree.slots).forEach(id => {
tree.slots[id].id = id
ret.slots.slot.push(tree.slots[id])
})
ret.slots.slot.sort((a, b) => a.order - b.order)
} else Iif (tree.teams) {
ret.teams = {}
ret.teams.team = []
Object.keys(tree.teams).forEach(id => {
const subTree = convertTree(tree.teams[id])
delete tree.teams[id].teams
delete tree.teams[id].slots
tree.teams[id].playersInfo = subTree
ret.teams.team.push(tree.teams[id])
})
ret.teams.team.sort((a, b) => a.order - b.order)
}
return ret
}
return {
id: id,
owner: {
id: info.owner
},
members: members,
name: info.name,
public: info.public === 'true',
playersInfo: convertTree(playersInfoTree),
gameInfo: info.gameInfo ? PapanUtils.JSON.parse(info.gameInfo) : info.gameInfo
}
}
async createLobby (data) {
const { userId } = data
const id = await PapanServerUtils.generateToken({ prefix: 'LBBY' })
Iif ((await this._promised.hsetnx('lobbyinfo:' + id, 'owner', userId)) === 0) {
return this.createLobby(data)
}
await Promise.all([
this._promised.set('lobbyinfo:' + id + ':gameid', 0),
this._promised.sadd('lobbymembers:' + id, userId),
this._promised.sadd('user:' + userId + ':lobbies', id)
])
return this.setLobbyName({
id: id,
userId: userId,
name: randomWords({ exactly: 4, join: ' ' })
})
}
async joinLobby (data) {
const { userId, id } = data
const owner = await this._promised.hget('lobbyinfo:' + id, 'owner')
Iif (owner === null) throw Error('Lobby doesn\'t exist')
await this._promised.sadd('lobbymembers:' + id, userId)
await this._promised.sadd('user:' + userId + ':lobbies', id)
return this.getLobbyInfo({ id: id })
}
async _setLobbyField (data) {
const { id, userId, field } = data
const key = 'lobbyinfo:' + id
const owner = await this._promised.hget(key, 'owner')
Iif (owner === null) throw Error('Lobby doesn\'t exist')
Eif (userId === owner) {
await this._promised.hset(key, field, data[field])
}
return this.getLobbyInfo({ id: id })
}
setLobbyName (data) {
return this._setLobbyField(deepmerge(data, { field: 'name' }))
}
async setLobbyPublic (data) {
const info = await this._setLobbyField(deepmerge(data, { field: 'public' }))
Eif (data.public) {
await this._promised.sadd('publiclobbies', data.id)
this._client.publish('publiclobbies', PapanUtils.JSON.stringify({
id: data.id,
status: 'ADDED'
}))
} else {
await this._promised.srem('publiclobbies', data.id)
this._client.publish('publiclobbies', PapanUtils.JSON.stringify({
id: data.id,
status: 'REMOVED'
}))
}
return info
}
async setLobbyGame ({ userId, id, gameInfo }) {
const createMinimumSlots = async (gameTeamKey, multi, playersInfo, owner = '') => {
Eif (playersInfo.info === 'players') {
for (let i = 0; i < playersInfo.players.min; i++) {
const slotId = await PapanServerUtils.generateToken({ prefix: 'SLOT' })
const subKey = 'playerinfo:' + owner + 'slot:' + slotId + ':order'
multi.hset(gameTeamKey, subKey, i)
}
} else {
for (let i = 0; i < playersInfo.teams.cardMin; i++) {
const teamId = await PapanServerUtils.generateToken({ prefix: 'TEAM' })
const subKey = 'playerinfo:' + owner + 'team:' + teamId
multi.hset(gameTeamKey, subKey + ':order', i)
multi.hset(gameTeamKey, subKey + ':name', playersInfo.teams.name)
await createMinimumSlots(multi, playersInfo.teams.playersInfo, teamId + ':')
}
}
}
const info = await this._setLobbyField({
userId: userId,
id: id,
gameInfo: PapanUtils.JSON.stringify(gameInfo),
field: 'gameInfo'
})
Iif (info.owner.id !== userId) return info
const newGameId = await this._promised.incrby('lobbyinfo:' + id + ':gameid', 1)
const oldGameId = newGameId - 1
const multi = this._client.multi()
multi.del('lobbyinfo:' + id + ':gameteaminfo:' + oldGameId)
await createMinimumSlots('lobbyinfo:' + id + ':gameteaminfo:' + newGameId, multi, gameInfo.json.playersInfo)
await multi.exec()
return this.getLobbyInfo({ id: id })
}
async assignSlot (data) {
const { lobbyId, userId, senderId } = data
const info = await this.getLobbyInfo({ id: lobbyId })
const owner = info.owner.id
if (userId) {
let found = false
info.members.forEach(user => {
if (user.id === userId) {
found = true
}
})
if (!found) return info
}
this._client.watch('lobbyinfo:' + lobbyId + ':gameid')
const gameId = await this._promised.get('lobbyinfo:' + lobbyId + ':gameid')
const buildSlotId = data => {
Eif (data.slotId) return 'slot:' + data.slotId
return (data.id ? (data.id + ':') : '') + buildSlotId(data.team)
}
const slotId = 'playerinfo:' + buildSlotId(data)
const multi = this._client.multi()
let discarded = false
const gameKey = 'lobbyinfo:' + lobbyId + ':gameteaminfo:' + gameId
if (owner === senderId) {
if (userId) {
multi.hset(gameKey, slotId + ':user', userId)
} else {
multi.hdel(gameKey, slotId + ':user')
}
} else {
const currentPlayer = await this._promised.hget(gameKey, slotId + ':user')
if ((currentPlayer && currentPlayer !== senderId) || (userId && userId !== senderId)) {
multi.discard()
discarded = true
} else {
Eif (userId) {
multi.hsetnx(gameKey, slotId + ':user', userId)
} else {
multi.hdel(gameKey, slotId + ':user')
}
}
}
if (!discarded) {
await multi.exec()
}
return this.getLobbyInfo({ id: lobbyId })
}
lobbySubscribe (id, callback) {
const subscriber = this._redis.createClient()
const key = 'lobbysub:' + id
subscriber.subscribe(key)
subscriber.on('message', (channel, message) => {
if (channel === key) {
callback(PapanUtils.JSON.parse(message))
}
})
const ret = {
subscriber: subscriber,
close: () => subscriber.unsubscribe(key)
}
return ret
}
lobbySendMessage (id, message) {
this._client.publish('lobbysub:' + id, PapanUtils.JSON.stringify(message))
}
getPublicLobbies () {
return this._promised.smembers('publiclobbies')
}
lobbyListSubscribe (callback) {
const subscriber = this._redis.createClient()
const key = 'publiclobbies'
subscriber.subscribe(key)
subscriber.on('message', (channel, message) => {
const data = PapanUtils.JSON.parse(message)
if (data.status === 0) {
this.getLobbyInfo({ id: data.id })
.then(info => {
data.lobby = info
callback(data)
})
} else {
data.lobby = { id: data.id }
callback(data)
}
})
const ret = {
subscriber: subscriber,
close: () => subscriber.unsubscribe(key)
}
return ret
}
isApiKeyValid (apiKey) {
return Promise.resolve(false)
}
}
exports.createPersist = () => {
let mock
Eif (!argv.use_redis_mock && !argv.use_redis_server) {
mock = PapanUtils.isElectron()
} else {
if (argv.use_redis_mock && argv.use_redis_server) {
throw Error('You can\'t have both --use_redis_mock and --use_redis_server')
}
mock = argv.use_redis_mock
}
const redis = mock ? require('redis-mock') : require('redis')
const client = redis.createClient()
if (mock) {
redis.setMaxListeners(0)
client.watch = () => {}
}
const rs = new RedisSessions({ client: client })
return Promise.resolve(new PersistClient({ rs: rs, client: client, redis: redis }))
}
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