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41 lines
1.5 KiB
CoffeeScript
41 lines
1.5 KiB
CoffeeScript
Settings = require "settings-sharelatex"
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RedisWrapper = require("../../infrastructure/RedisWrapper")
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rclient = RedisWrapper.client("clsi_state")
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logger = require "logger-sharelatex"
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crypto = require "crypto"
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buildKey = (project_id, user_id)->
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return "clsistate:#{project_id}-#{user_id}" # FIXME: should we cluster these on project??
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buildState = (project) ->
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JSON.stringify project
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clsiStateEnabled = Settings.clsiState
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OneHour = 3600 * 1000
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module.exports = ClsiStateManager =
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checkState: (project_id, user_id, project, callback = (err, ok) ->) ->
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newState = buildState(project)
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@getState project_id, user_id, (err, oldState) ->
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return callback(err) if err?
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if newState is oldState
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hash = crypto.createHash('sha1').update(newState, 'utf8').digest('hex')
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callback(null,true,hash)
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else
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callback(null,false)
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getState: (project_id, user_id, callback = (err, state)->)->
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rclient.get buildKey(project_id, user_id), (err, state)->
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return callback(err) if err?
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logger.log project_id: project_id, user_id: user_id, state: state, "got project state from redis"
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return callback(null, state)
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setState: (project_id, user_id, project, callback = (err)->)->
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projectState = buildState project
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logger.log project_id: project_id, user_id: user_id, projectState: projectState, "setting project state in redis"
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rclient.set buildKey(project_id, user_id), projectState, "PX", OneHour, (err) ->
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return callback(err) if err?
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hash = crypto.createHash('sha1').update(projectState, 'utf8').digest('hex')
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callback(null,hash)
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