mirror of
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104 lines
2.8 KiB
CoffeeScript
104 lines
2.8 KiB
CoffeeScript
settings = require("settings-sharelatex")
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request = require("request")
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logger = require("logger-sharelatex")
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timeout = if process.env.NODE_ENV == "production" then 500 else 5000
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logger.log "using timeout of #{timeout}ms for sixpack server calls"
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generate_client_id = ->
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# from http://stackoverflow.com/questions/105034
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'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace /[xy]/g, (c) ->
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r = Math.random() * 16 | 0
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v = if c == 'x' then r else r & 0x3 | 0x8
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v.toString 16
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_request_uri = (endpoint, params) ->
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query_string = []
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e = encodeURIComponent
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for key of params
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if params.hasOwnProperty(key)
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vals = params[key]
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if Object::toString.call(vals) != '[object Array]'
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vals = [ vals ]
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i = 0
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while i < vals.length
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query_string.push e(key) + '=' + e(vals[i])
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i += 1
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if query_string.length
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endpoint += '?' + query_string.join('&')
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endpoint
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_request = (uri, params, callback)->
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opts =
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uri:_request_uri(uri, params)
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json:true
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timeout:timeout
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request.get opts, (err, res, body)->
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callback err, body
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module.exports = sixpack =
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client: (user_id)->
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client = new sixpack.Session(user_id, settings.apis.sixpack.url)
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return client
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Session : (client_id, base_url, ip_address, user_agent) ->
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@client_id = client_id or sixpack.generate_client_id()
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@base_url = base_url or sixpack.base_url
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participate: (experiment_name, alternatives, force, callback) =>
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if typeof force == 'function'
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callback = force
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force = null
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if !/^[a-z0-9][a-z0-9\-_ ]*$/.test(experiment_name)
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return callback(new Error('Bad experiment_name'))
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if alternatives.length < 2
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return callback(new Error('Must specify at least 2 alternatives'))
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i = 0
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while i < alternatives.length
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if !/^[a-z0-9][a-z0-9\-_ ]*$/.test(alternatives[i])
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return callback(new Error('Bad alternative name: ' + alternatives[i]))
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i += 1
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params =
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client_id: @client_id
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experiment: experiment_name
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alternatives: alternatives
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if force != null and _in_array(alternatives, force)
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return callback(null,
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'status': 'ok'
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'alternative': 'name': force
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'experiment':
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'version': 0
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'name': experiment_name
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'client_id': @client_id)
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_request @base_url + '/participate', params, (err, res) ->
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if err?
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res =
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status: 'failed'
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error: err
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alternative: name: alternatives[0]
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callback null, res
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convert: (experiment_name, callback)=>
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if !/^[a-z0-9][a-z0-9\-_ ]*$/.test(experiment_name)
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return callback(new Error('Bad experiment_name'))
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params =
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client_id: @client_id
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experiment: experiment_name
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if @ip_address
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params.ip_address = @ip_address
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if @user_agent
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params.user_agent = @user_agent
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_request @base_url + '/convert', params, (err, res) ->
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if err?
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res =
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status: 'failed'
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error: err
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callback null, res
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