status-github-bot/lib/slack-profile-cache.js

266 lines
8.7 KiB
JavaScript

// Description:
// GitHub ID mapping to other connected systems (e.g. Slack)
//
// Dependencies:
// mem-cache: "0.0.5"
// memjs: "^1.2.0"
// @slack/client: "^3.16.0"
//
// Author:
// PombeirP
const MemCache = require('mem-cache')
const { WebClient } = require('@slack/client')
const token = process.env.SLACK_USER_TOKEN || ''
const slackWebClient = new WebClient(token)
const cacheMemcachedKey = 'slack-profile-cache-json'
const slackIdCacheKeyPrefix = 'Slack-'
const slackUsernameCacheKeyPrefix = 'SlackUN-'
const gitHubIdCacheKeyPrefix = 'GitHub-'
var allowLoadFromCache = true
module.exports = (robot) => new GitHubSlackIdMapper(robot)
class GitHubSlackIdMapper {
constructor (robot) {
this.robot = robot
this.cache = new MemCache({ timeoutDisabled: true })
this.buildPromise = new Promise((resolve, reject) => internalBuild(this.robot, this.cache).then(resolve).catch(reject))
// Refresh cache every day
setInterval(() => internalBuild(this.robot, this.cache), 24 * 60 * 60 * 1000)
}
async getSlackUsernameFromSlackId (slackUserId) {
await this.buildPromise
const profile = this.cache.get(getSlackId2ProfileCacheKeyName(slackUserId))
if (profile) {
return profile.name
}
return null
}
async getSlackIdFromSlackUsername (slackUsername) {
await this.buildPromise
const id = this.cache.get(getSlackUsername2IdCacheKeyName(slackUsername))
return id
}
async getGitHubHandleFromSlackId (slackUserId) {
await this.buildPromise
const profile = this.cache.get(getSlackId2ProfileCacheKeyName(slackUserId))
if (profile) {
return profile.github_handle
}
return null
}
async getSlackIdFromGitHubId (gitHubId) {
await this.buildPromise
return this.cache.get(getGitHub2SlackIdCacheKeyName(gitHubId))
}
async getSlackMentionFromGitHubId (gitHubId) {
const id = await this.getSlackIdFromGitHubId(gitHubId)
if (!id) {
return null
}
return `<@${id}>`
}
async getMainnetPubKeyFromSlackId (slackUserId) {
await this.buildPromise
const profile = this.cache.get(getSlackId2ProfileCacheKeyName(slackUserId))
if (profile) {
return profile.pubkey
}
return null
}
}
async function internalBuild (robot, cache) {
const mc = robot['memcache']
if (allowLoadFromCache && mc) {
try {
const json = await mc.get(cacheMemcachedKey)
if (json.value) {
const cacheFromFile = JSON.parse(json.value)
for (const kvp of cacheFromFile) {
if (kvp.k.startsWith(slackIdCacheKeyPrefix) && !kvp.v.hasOwnProperty('pubkey')) {
cache.clean()
break
}
cache.set(kvp.k, kvp.v)
if (kvp.k.startsWith(slackIdCacheKeyPrefix)) {
const profile = kvp.v
cache.set(getSlackUsername2IdCacheKeyName(profile.name), kvp.k.substring(slackIdCacheKeyPrefix.length))
}
}
allowLoadFromCache = false
if (cache.length > 0) {
robot.log.info(`Read Slack user cache from Memcached (${cache.length} entries)`)
return
}
}
} catch (error) {
// Ignore
robot.log.info('Could not find Slack user cache')
}
}
robot.log.info('Populating Slack user ID cache...')
try {
const slackWeb = new WebClient(token) // We need to use a different token because users.profile API is not available to bot users
const usersList = await getUsersList()
const activeUsersList = usersList.filter(u => !u.deleted && !u.is_bot && u.id !== 'USLACKBOT')
let gitHubFieldId = null
let pubKeyFieldId = null
let usersMissingGitHubInfo = []
let usersMissingMainnetAddress = []
let usersContainingGitHubInfo = []
let usersWithMainnetPubkey = 0
let rateLimitWait = 10000
let profileFetchPreviousBatchCount = 3
let profileFetchBatchCount = 0
for (let i = 0; i < activeUsersList.length;) {
const user = activeUsersList[i]
try {
++profileFetchBatchCount
const { profile } = await slackWeb.users.profile.get({ user: user.id, include_labels: !gitHubFieldId || !pubKeyFieldId })
const username = profile.display_name_normalized || profile.real_name_normalized
if (!gitHubFieldId) {
// Find the field ID for the field with the 'Github ID' label
gitHubFieldId = findProfileLabelId(profile, 'Github ID')
}
if (!pubKeyFieldId) {
// Find the field ID for the field with the 'Mainnet Address' label
pubKeyFieldId = findProfileLabelId(profile, 'Mainnet Address')
}
if (!gitHubFieldId) {
robot.log.warn(`No GitHub ID field found in @${username} (${user.id}) profile!`)
}
if (!pubKeyFieldId) {
robot.log.warn(`No Mainnet Address field found in @${username} (${user.id}) profile!`)
}
const gitHubUsername = gitHubFieldId && profile.fields && profile.fields[gitHubFieldId] ? profile.fields[gitHubFieldId].value.replace('https://github.com/', '') : null
if (gitHubUsername) {
usersContainingGitHubInfo = usersContainingGitHubInfo.concat(username)
} else {
usersMissingGitHubInfo = usersMissingGitHubInfo.concat(username)
}
const pubkey = profile.fields && profile.fields[pubKeyFieldId] ? profile.fields[pubKeyFieldId].value : null
if (pubkey) {
++usersWithMainnetPubkey
} else {
usersMissingMainnetAddress = usersMissingMainnetAddress.concat(username)
}
const data = { name: username, github_handle: gitHubUsername, pubkey: pubkey }
robot.log.debug(`@${username} (${user.id}) -> ${JSON.stringify(data)}`)
cache.set(getSlackId2ProfileCacheKeyName(user.id), data)
cache.set(getSlackUsername2IdCacheKeyName(username), user.id)
if (gitHubUsername) {
cache.set(getGitHub2SlackIdCacheKeyName(gitHubUsername), user.id)
}
++i
await sleep(1500)
} catch (e) {
if (e.name === 'Error' && e.message === 'ratelimited') {
robot.log.trace(`Rate-limited, waiting ${rateLimitWait / 1000}s...`)
await sleep(rateLimitWait)
if (profileFetchBatchCount < profileFetchPreviousBatchCount) {
// If we managed to fetch fewer profiles than the last time we got rate-limited, then try increasing the wait period
rateLimitWait += 5000
}
profileFetchPreviousBatchCount = profileFetchBatchCount
profileFetchBatchCount = 0
continue
}
throw e
}
}
robot.log.info(`Populated Slack user ID cache with ${usersContainingGitHubInfo.length} users: ${usersContainingGitHubInfo.map(s => '@' + s).join(', ')}`)
if (usersMissingGitHubInfo) {
robot.log.warn(`The following ${usersMissingGitHubInfo.length} Slack users have no GitHub info in their profiles: ${usersMissingGitHubInfo.map(s => '@' + s).join(', ')}`)
}
if (usersMissingMainnetAddress) {
robot.log.warn(`The following ${usersMissingMainnetAddress.length} Slack users have no Mainnet address in their profiles: ${usersMissingMainnetAddress.map(s => '@' + s).join(', ')}`)
}
robot.log.info(`${usersWithMainnetPubkey} users in ${activeUsersList.length} have a mainnet public key address configured`)
// Write cache out to JSON file for faster startup next time
const c = []
for (const key of cache.keys) {
c.push({ k: key, v: cache.get(key) })
}
if (mc) {
try {
await mc.set(cacheMemcachedKey, JSON.stringify(c, {}, 2), {})
robot.log.info(`Saved cache to Memcached`)
} catch (error) {
robot.log.warn(`Error while saving cache to Memcached: ${error}`)
}
}
} catch (e) {
robot.log.error(`Error while populating Slack user ID cache: ${e}`)
}
}
function findProfileLabelId (profile, labelName) {
if (profile.fields) {
for (const fieldId in profile.fields) {
const field = profile.fields[fieldId]
if (field.label === labelName) {
return fieldId
}
}
}
return null
}
function getSlackId2ProfileCacheKeyName (slackUserId) {
return slackIdCacheKeyPrefix.concat(slackUserId)
}
function getSlackUsername2IdCacheKeyName (slackUsername) {
return slackUsernameCacheKeyPrefix.concat(slackUsername)
}
function getGitHub2SlackIdCacheKeyName (gitHubUsername) {
return gitHubIdCacheKeyPrefix.concat(gitHubUsername)
}
function timeout (ms) {
return new Promise(resolve => setTimeout(resolve, ms))
}
async function sleep (timeoutMs) {
await timeout(timeoutMs)
}
async function getUsersList (users = [], cursor = '') {
const res = await slackWebClient.users.list({limit: 200, cursor: cursor})
users = users.concat(res.members)
if (!res.response_metadata.next_cursor) {
return users
}
return getUsersList(users, res.response_metadata.next_cursor)
}