48 lines
1.3 KiB
CoffeeScript
48 lines
1.3 KiB
CoffeeScript
# node libraries
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redis = (require 'redis')
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crypto = (require 'crypto')
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logger = (require 'logging').default 'session'
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# expiry times in seconds
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EXPIRY =
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# games expire 1 week after creation
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game: 1 * 60 * 60 * 24 * 7
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# logins expire 1 month after last action
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login: 1 * 60 * 60 * 24 * 7 * 4
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class FFTCGSESSION
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constructor: ->
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@db = redis.createClient
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host: 'redis'
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port: 6379
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@db.on 'error', (err) =>
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logger.error err.message
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start: (data) ->
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new Promise (resolve) =>
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# hash data
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hmac = crypto.createHmac 'sha256', Math.random().toString()
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hmac.update (JSON.stringify data)
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digest = hmac.digest 'base64'
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logger.debug 'digest', digest
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# push (hash, data) into DB for the configured timespan
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@db.setex digest, EXPIRY.login, (JSON.stringify data), (err) ->
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logger.info "OK '#{digest}' created"
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resolve digest
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check: (digest) ->
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new Promise (resolve, reject) =>
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# refresh expiry timer on digest
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@db.expire digest, EXPIRY.login, (err, res) =>
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if res == 0
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reject null
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else
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@db.get digest, (err, res) ->
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logger.info "OK '#{digest}' resumed"
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resolve JSON.parse res
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module.exports = new FFTCGSESSION
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