Files
shields/services/github/github-constellation.js
2019-01-18 06:18:31 -05:00

117 lines
3.1 KiB
JavaScript

'use strict'
const path = require('path')
const RedisTokenPersistence = require('../../core/token-pooling/redis-token-persistence')
const FsTokenPersistence = require('../../core/token-pooling/fs-token-persistence')
const serverSecrets = require('../../lib/server-secrets')
const log = require('../../core/server/log')
const GithubApiProvider = require('./github-api-provider')
const { setRoutes: setAdminRoutes } = require('./auth/admin')
const { setRoutes: setAcceptorRoutes } = require('./auth/acceptor')
// Convenience class with all the stuff related to the Github API and its
// authorization tokens, to simplify server initialization.
class GithubConstellation {
constructor(config) {
this._debugEnabled = config.service.debug.enabled
this._debugIntervalSeconds = config.service.debug.intervalSeconds
const { redisUrl, dir: persistenceDir } = config.persistence
if (config.persistence.redisUrl) {
log(`RedisTokenPersistence configured with ${redisUrl}`)
this.persistence = new RedisTokenPersistence({
url: redisUrl,
key: 'githubUserTokens',
})
} else {
const userTokensPath = path.resolve(
persistenceDir,
'github-user-tokens.json'
)
log(`FsTokenPersistence configured with ${userTokensPath}`)
this.persistence = new FsTokenPersistence({ path: userTokensPath })
}
const globalToken = serverSecrets.gh_token
const baseUrl = process.env.GITHUB_URL || 'https://api.github.com'
this.apiProvider = new GithubApiProvider({
baseUrl,
globalToken,
withPooling: !globalToken,
onTokenInvalidated: tokenString => this.onTokenInvalidated(tokenString),
})
}
scheduleDebugLogging() {
if (this._debugEnabled) {
this.debugInterval = setInterval(() => {
log(this.apiProvider.getTokenDebugInfo())
}, 1000 * this._debugIntervalSeconds)
}
}
async initialize(server) {
if (!this.apiProvider.withPooling) {
return
}
this.scheduleDebugLogging()
let tokens = []
try {
tokens = await this.persistence.initialize()
} catch (e) {
log.error(e)
}
tokens.forEach(tokenString => {
this.apiProvider.addToken(tokenString)
})
setAdminRoutes(this.apiProvider, server)
if (serverSecrets.gh_client_id && serverSecrets.gh_client_secret) {
setAcceptorRoutes({
server,
onTokenAccepted: tokenString => this.onTokenAdded(tokenString),
})
}
}
onTokenAdded(tokenString) {
this.apiProvider.addToken(tokenString)
process.nextTick(async () => {
try {
await this.persistence.noteTokenAdded(tokenString)
} catch (e) {
log.error(e)
}
})
}
onTokenInvalidated(tokenString) {
process.nextTick(async () => {
try {
await this.persistence.noteTokenRemoved(tokenString)
} catch (e) {
log.error(e)
}
})
}
async stop() {
if (this.debugInterval) {
clearInterval(this.debugInterval)
this.debugInterval = undefined
}
try {
await this.persistence.stop()
} catch (e) {
log.error(e)
}
}
}
module.exports = GithubConstellation