overleaf/services/web/app/coffee/Features/Subscription/RecurlyWrapper.coffee

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querystring = require 'querystring'
crypto = require 'crypto'
request = require 'request'
Settings = require "settings-sharelatex"
xml2js = require "xml2js"
logger = require("logger-sharelatex")
Async = require('async')
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module.exports = RecurlyWrapper =
apiUrl : "https://api.recurly.com/v2"
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_addressToXml: (address) ->
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allowedKeys = ['address1', 'address2', 'city', 'country', 'state', 'zip', 'postal_code']
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resultString = "<billing_info>\n"
for k, v of address
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if k == 'postal_code'
k = 'zip'
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if v and (k in allowedKeys)
resultString += "<#{k}#{if k == 'address2' then ' nil="nil"' else ''}>#{v || ''}</#{k}>\n"
resultString += "</billing_info>\n"
return resultString
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_paypal:
checkAccountExists: (cache, next) ->
user = cache.user
recurly_token_id = cache.recurly_token_id
subscriptionDetails = cache.subscriptionDetails
logger.log {user_id: user._id, recurly_token_id}, "checking if recurly account exists for user"
RecurlyWrapper.apiRequest({
url: "accounts/#{user._id}"
method: "GET"
expect404: true
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}, (error, response, responseBody) ->
if error
logger.error {error, user_id: user._id, recurly_token_id}, "error response from recurly while checking account"
return next(error)
if response.statusCode == 404 # actually not an error in this case, just no existing account
logger.log {user_id: user._id, recurly_token_id}, "user does not currently exist in recurly, proceed"
cache.userExists = false
return next(null, cache)
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logger.log {user_id: user._id, recurly_token_id}, "user appears to exist in recurly"
RecurlyWrapper._parseAccountXml responseBody, (err, account) ->
if err
logger.error {err, user_id: user._id, recurly_token_id}, "error parsing account"
return next(err)
cache.userExists = true
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cache.account = account
return next(null, cache)
)
createAccount: (cache, next) ->
user = cache.user
recurly_token_id = cache.recurly_token_id
subscriptionDetails = cache.subscriptionDetails
address = subscriptionDetails.address
if !address
return next(new Error('no address in subscriptionDetails at createAccount stage'))
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if cache.userExists
logger.log {user_id: user._id, recurly_token_id}, "user already exists in recurly"
return next(null, cache)
logger.log {user_id: user._id, recurly_token_id}, "creating user in recurly"
requestBody = """
<account>
<account_code>#{user._id}</account_code>
<email>#{user.email}</email>
<first_name>#{user.first_name}</first_name>
<last_name>#{user.last_name}</last_name>
<address>
<address1>#{address.address1}</address1>
<address2>#{address.address2}</address2>
<city>#{address.city || ''}</city>
<state>#{address.state || ''}</state>
<zip>#{address.zip || ''}</zip>
<country>#{address.country}</country>
</address>
</account>
"""
RecurlyWrapper.apiRequest({
url : "accounts"
method : "POST"
body : requestBody
}, (error, response, responseBody) =>
if error
logger.error {error, user_id: user._id, recurly_token_id}, "error response from recurly while creating account"
return next(error)
RecurlyWrapper._parseAccountXml responseBody, (err, account) ->
if err
logger.error {err, user_id: user._id, recurly_token_id}, "error creating account"
return next(err)
cache.account = account
return next(null, cache)
)
createBillingInfo: (cache, next) ->
user = cache.user
recurly_token_id = cache.recurly_token_id
subscriptionDetails = cache.subscriptionDetails
logger.log {user_id: user._id, recurly_token_id}, "creating billing info in recurly"
accountCode = cache?.account?.account_code
if !accountCode
return next(new Error('no account code at createBillingInfo stage'))
requestBody = """
<billing_info>
<token_id>#{recurly_token_id}</token_id>
</billing_info>
"""
RecurlyWrapper.apiRequest({
url: "accounts/#{accountCode}/billing_info"
method: "POST"
body: requestBody
}, (error, response, responseBody) =>
if error
logger.error {error, user_id: user._id, recurly_token_id}, "error response from recurly while creating billing info"
return next(error)
RecurlyWrapper._parseBillingInfoXml responseBody, (err, billingInfo) ->
if err
logger.error {err, user_id: user._id, accountCode, recurly_token_id}, "error creating billing info"
return next(err)
cache.billingInfo = billingInfo
return next(null, cache)
)
setAddress: (cache, next) ->
user = cache.user
recurly_token_id = cache.recurly_token_id
subscriptionDetails = cache.subscriptionDetails
logger.log {user_id: user._id, recurly_token_id}, "setting billing address in recurly"
accountCode = cache?.account?.account_code
if !accountCode
return next(new Error('no account code at setAddress stage'))
address = subscriptionDetails.address
if !address
return next(new Error('no address in subscriptionDetails at setAddress stage'))
requestBody = RecurlyWrapper._addressToXml(address)
RecurlyWrapper.apiRequest({
url: "accounts/#{accountCode}/billing_info"
method: "PUT"
body: requestBody
}, (error, response, responseBody) =>
if error
logger.error {error, user_id: user._id, recurly_token_id}, "error response from recurly while setting address"
return next(error)
RecurlyWrapper._parseBillingInfoXml responseBody, (err, billingInfo) ->
if err
logger.error {err, user_id: user._id, recurly_token_id}, "error updating billing info"
return next(err)
cache.billingInfo = billingInfo
return next(null, cache)
)
createSubscription: (cache, next) ->
user = cache.user
recurly_token_id = cache.recurly_token_id
subscriptionDetails = cache.subscriptionDetails
logger.log {user_id: user._id, recurly_token_id}, "creating subscription in recurly"
requestBody = """
<subscription>
<plan_code>#{subscriptionDetails.plan_code}</plan_code>
<currency>#{subscriptionDetails.currencyCode}</currency>
<coupon_code>#{subscriptionDetails.coupon_code}</coupon_code>
<account>
<account_code>#{user._id}</account_code>
</account>
</subscription>
""" # TODO: check account details and billing
RecurlyWrapper.apiRequest({
url : "subscriptions"
method : "POST"
body : requestBody
}, (error, response, responseBody) =>
if error
logger.error {error, user_id: user._id, recurly_token_id}, "error response from recurly while creating subscription"
return next(error)
RecurlyWrapper._parseSubscriptionXml responseBody, (err, subscription) ->
if err
logger.error {err, user_id: user._id, recurly_token_id}, "error creating subscription"
return next(err)
cache.subscription = subscription
return next(null, cache)
)
_createPaypalSubscription: (user, subscriptionDetails, recurly_token_id, callback) ->
logger.log {user_id: user._id, recurly_token_id}, "starting process of creating paypal subscription"
# We use `async.waterfall` to run each of these actions in sequence
# passing a `cache` object along the way. The cache is initialized
# with required data, and `async.apply` to pass the cache to the first function
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cache = {user, recurly_token_id, subscriptionDetails}
Async.waterfall([
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Async.apply(RecurlyWrapper._paypal.checkAccountExists, cache),
RecurlyWrapper._paypal.createAccount,
RecurlyWrapper._paypal.createBillingInfo,
RecurlyWrapper._paypal.setAddress,
RecurlyWrapper._paypal.createSubscription,
], (err, result) ->
if err
logger.error {err, user_id: user._id, recurly_token_id}, "error in paypal subscription creation process"
return callback(err)
if !result.subscription
err = new Error('no subscription object in result')
logger.error {err, user_id: user._id, recurly_token_id}, "error in paypal subscription creation process"
return callback(err)
logger.log {user_id: user._id, recurly_token_id}, "done creating paypal subscription for user"
callback(null, result.subscription)
)
_createCreditCardSubscription: (user, subscriptionDetails, recurly_token_id, callback) ->
requestBody = """
<subscription>
<plan_code>#{subscriptionDetails.plan_code}</plan_code>
<currency>#{subscriptionDetails.currencyCode}</currency>
<coupon_code>#{subscriptionDetails.coupon_code}</coupon_code>
<account>
<account_code>#{user._id}</account_code>
<email>#{user.email}</email>
<first_name>#{user.first_name}</first_name>
<last_name>#{user.last_name}</last_name>
<billing_info>
<token_id>#{recurly_token_id}</token_id>
</billing_info>
</account>
</subscription>
"""
RecurlyWrapper.apiRequest({
url : "subscriptions"
method : "POST"
body : requestBody
}, (error, response, responseBody) =>
return callback(error) if error?
RecurlyWrapper._parseSubscriptionXml responseBody, callback
)
createSubscription: (user, subscriptionDetails, recurly_token_id, callback)->
isPaypal = subscriptionDetails.isPaypal
logger.log {user_id: user._id, isPaypal, recurly_token_id}, "setting up subscription in recurly"
fn = if isPaypal then RecurlyWrapper._createPaypalSubscription else RecurlyWrapper._createCreditCardSubscription
fn user, subscriptionDetails, recurly_token_id, callback
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apiRequest : (options, callback) ->
options.url = RecurlyWrapper.apiUrl + "/" + options.url
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options.headers =
"Authorization" : "Basic " + new Buffer(Settings.apis.recurly.apiKey).toString("base64")
"Accept" : "application/xml"
"Content-Type" : "application/xml; charset=utf-8"
expect404 = options.expect404
delete options.expect404
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request options, (error, response, body) ->
unless error? or response.statusCode == 200 or response.statusCode == 201 or response.statusCode == 204 or (response.statusCode == 404 and expect404)
logger.err err:error, body:body, options:options, statusCode:response?.statusCode, "error returned from recurly"
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error = "Recurly API returned with status code: #{response.statusCode}"
if response.statusCode == 404 and expect404
logger.log {url: options.url, method: options.method}, "got 404 response from recurly, expected as valid response"
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callback(error, response, body)
sign : (parameters, callback) ->
nestAttributesForQueryString = (attributes, base) ->
newAttributes = {}
for key, value of attributes
if base?
newKey = "#{base}[#{key}]"
else
newKey = key
if typeof value == "object"
for key, value of nestAttributesForQueryString(value, newKey)
newAttributes[key] = value
else
newAttributes[newKey] = value
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return newAttributes
crypto.randomBytes 32, (error, buffer) ->
return callback error if error?
parameters.nonce = buffer.toString "base64"
parameters.timestamp = Math.round((new Date()).getTime() / 1000)
unsignedQuery = querystring.stringify nestAttributesForQueryString(parameters)
signed = crypto.createHmac("sha1", Settings.apis.recurly.privateKey).update(unsignedQuery).digest("hex")
signature = "#{signed}|#{unsignedQuery}"
callback null, signature
getSubscriptions: (accountId, callback)->
RecurlyWrapper.apiRequest({
url: "accounts/#{accountId}/subscriptions"
}, (error, response, body) =>
return callback(error) if error?
RecurlyWrapper._parseXml body, callback
)
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getSubscription: (subscriptionId, options, callback) ->
callback = options unless callback?
options ||= {}
if options.recurlyJsResult
url = "recurly_js/result/#{subscriptionId}"
else
url = "subscriptions/#{subscriptionId}"
RecurlyWrapper.apiRequest({
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url: url
}, (error, response, body) =>
return callback(error) if error?
RecurlyWrapper._parseSubscriptionXml body, (error, recurlySubscription) =>
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return callback(error) if error?
if options.includeAccount
if recurlySubscription.account? and recurlySubscription.account.url?
accountId = recurlySubscription.account.url.match(/accounts\/(.*)/)[1]
else
return callback "I don't understand the response from Recurly"
RecurlyWrapper.getAccount accountId, (error, account) ->
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return callback(error) if error?
recurlySubscription.account = account
callback null, recurlySubscription
else
callback null, recurlySubscription
)
getAccounts: (callback)->
allAccounts = []
getPageOfAccounts = (cursor = null)=>
opts =
url: "accounts"
qs:
per_page:200
if cursor?
opts.qs.cursor = cursor
RecurlyWrapper.apiRequest opts, (error, response, body) =>
return callback(error) if error?
RecurlyWrapper._parseXml body, (err, data)->
if err?
logger.err err:err, "could not get accoutns"
callback(err)
allAccounts = allAccounts.concat(data.accounts)
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logger.log "got another #{data.accounts.length}, total now #{allAccounts.length}"
cursor = response.headers.link?.match(/cursor=([0-9]+)&/)?[1]
if cursor?
getPageOfAccounts(cursor)
else
callback(err, allAccounts)
getPageOfAccounts()
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getAccount: (accountId, callback) ->
RecurlyWrapper.apiRequest({
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url: "accounts/#{accountId}"
}, (error, response, body) =>
return callback(error) if error?
RecurlyWrapper._parseAccountXml body, callback
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)
getBillingInfo: (accountId, callback)->
RecurlyWrapper.apiRequest({
url: "accounts/#{accountId}/billing_info"
}, (error, response, body) =>
return callback(error) if error?
RecurlyWrapper._parseXml body, callback
)
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updateSubscription: (subscriptionId, options, callback) ->
logger.log subscriptionId:subscriptionId, options:options, "telling recurly to update subscription"
requestBody = """
<subscription>
<plan_code>#{options.plan_code}</plan_code>
<timeframe>#{options.timeframe}</timeframe>
</subscription>
"""
RecurlyWrapper.apiRequest({
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url : "subscriptions/#{subscriptionId}"
method : "put"
body : requestBody
}, (error, response, responseBody) =>
return callback(error) if error?
RecurlyWrapper._parseSubscriptionXml responseBody, callback
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)
createFixedAmmountCoupon: (coupon_code, name, currencyCode, discount_in_cents, plan_code, callback)->
requestBody = """
<coupon>
<coupon_code>#{coupon_code}</coupon_code>
<name>#{name}</name>
<discount_type>dollars</discount_type>
<discount_in_cents>
<#{currencyCode}>#{discount_in_cents}</#{currencyCode}>
</discount_in_cents>
<plan_codes>
<plan_code>#{plan_code}</plan_code>
</plan_codes>
<applies_to_all_plans>false</applies_to_all_plans>
</coupon>
"""
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logger.log coupon_code:coupon_code, requestBody:requestBody, "creating coupon"
RecurlyWrapper.apiRequest({
url : "coupons"
method : "post"
body : requestBody
}, (error, response, responseBody) =>
if error?
logger.err err:error, coupon_code:coupon_code, "error creating coupon"
callback(error)
)
lookupCoupon: (coupon_code, callback)->
RecurlyWrapper.apiRequest({
url: "coupons/#{coupon_code}"
}, (error, response, body) =>
return callback(error) if error?
RecurlyWrapper._parseXml body, callback
)
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cancelSubscription: (subscriptionId, callback) ->
logger.log subscriptionId:subscriptionId, "telling recurly to cancel subscription"
RecurlyWrapper.apiRequest({
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url: "subscriptions/#{subscriptionId}/cancel",
method: "put"
}, (error, response, body) ->
if error?
RecurlyWrapper._parseXml body, (_err, parsed) ->
if parsed?.error?.description == "A canceled subscription can't transition to canceled"
logger.log {subscriptionId, error, body}, "subscription already cancelled, not really an error, proceeding"
callback(null)
else
callback(error)
else
callback(null)
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)
reactivateSubscription: (subscriptionId, callback) ->
logger.log subscriptionId:subscriptionId, "telling recurly to reactivating subscription"
RecurlyWrapper.apiRequest({
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url: "subscriptions/#{subscriptionId}/reactivate",
method: "put"
}, (error, response, body) ->
callback(error)
)
redeemCoupon: (account_code, coupon_code, callback)->
requestBody = """
<redemption>
<account_code>#{account_code}</account_code>
<currency>USD</currency>
</redemption>
"""
logger.log account_code:account_code, coupon_code:coupon_code, requestBody:requestBody, "redeeming coupon for user"
RecurlyWrapper.apiRequest({
url : "coupons/#{coupon_code}/redeem"
method : "post"
body : requestBody
}, (error, response, responseBody) =>
if error?
logger.err err:error, account_code:account_code, coupon_code:coupon_code, "error redeeming coupon"
callback(error)
)
extendTrial: (subscriptionId, daysUntilExpire = 7, callback)->
next_renewal_date = new Date()
next_renewal_date.setDate(next_renewal_date.getDate() + daysUntilExpire)
logger.log subscriptionId:subscriptionId, daysUntilExpire:daysUntilExpire, "Exending Free trial for user"
RecurlyWrapper.apiRequest({
url : "/subscriptions/#{subscriptionId}/postpone?next_renewal_date=#{next_renewal_date}&bulk=false"
method : "put"
}, (error, response, responseBody) =>
if error?
logger.err err:error, subscriptionId:subscriptionId, daysUntilExpire:daysUntilExpire, "error exending trial"
callback(error)
)
listAccountActiveSubscriptions: (account_id, callback = (error, subscriptions) ->) ->
RecurlyWrapper.apiRequest {
url: "accounts/#{account_id}/subscriptions"
qs:
state: "active"
expect404: true
}, (error, response, body) ->
return callback(error) if error?
if response.statusCode == 404
return callback null, []
else
RecurlyWrapper._parseSubscriptionsXml body, callback
_parseSubscriptionsXml: (xml, callback) ->
RecurlyWrapper._parseXmlAndGetAttribute xml, "subscriptions", callback
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_parseSubscriptionXml: (xml, callback) ->
RecurlyWrapper._parseXmlAndGetAttribute xml, "subscription", callback
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_parseAccountXml: (xml, callback) ->
RecurlyWrapper._parseXmlAndGetAttribute xml, "account", callback
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_parseBillingInfoXml: (xml, callback) ->
RecurlyWrapper._parseXmlAndGetAttribute xml, "billing_info", callback
_parseXmlAndGetAttribute: (xml, attribute, callback) ->
RecurlyWrapper._parseXml xml, (error, data) ->
return callback(error) if error?
if data? and data[attribute]?
return callback null, data[attribute]
else
return callback(new Error("I don't understand the response from Recurly"))
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_parseXml: (xml, callback) ->
convertDataTypes = (data) ->
if data? and data["$"]?
if data["$"]["nil"] == "nil"
data = null
else if data["$"].href?
data.url = data["$"].href
delete data["$"]
else if data["$"]["type"] == "integer"
data = parseInt(data["_"], 10)
else if data["$"]["type"] == "datetime"
data = new Date(data["_"])
else if data["$"]["type"] == "array"
delete data["$"]
array = []
for key, value of data
if value instanceof Array
array = array.concat(convertDataTypes(value))
else
array.push(convertDataTypes(value))
data = array
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if data instanceof Array
data = (convertDataTypes(entry) for entry in data)
else if typeof data == "object"
for key, value of data
data[key] = convertDataTypes(value)
return data
parser = new xml2js.Parser(
explicitRoot : true
explicitArray : false
)
parser.parseString xml, (error, data) ->
return callback(error) if error?
result = convertDataTypes(data)
callback null, result