overleaf/services/web/app/coffee/Features/Newsletter/NewsletterManager.coffee

89 lines
3.1 KiB
CoffeeScript

async = require('async')
logger = require 'logger-sharelatex'
Settings = require 'settings-sharelatex'
crypto = require('crypto')
Mailchimp = require('mailchimp-api-v3')
if !Settings.mailchimp?.api_key?
logger.info "Using newsletter provider: none"
mailchimp =
request: (opts, cb)-> cb()
else
logger.info "Using newsletter provider: mailchimp"
mailchimp = new Mailchimp(Settings.mailchimp?.api_key)
module.exports =
subscribe: (user, callback = () ->)->
options = buildOptions(user, true)
logger.log options:options, user:user, email:user.email, "subscribing user to the mailing list"
mailchimp.request options, (err)->
if err?
logger.err err:err, user:user, "error subscribing person to newsletter"
else
logger.log user:user, "finished subscribing user to the newsletter"
callback(err)
unsubscribe: (user, callback = () ->)->
logger.log user:user, email:user.email, "trying to unsubscribe user to the mailing list"
options = buildOptions(user, false)
mailchimp.request options, (err)->
if err?
logger.err err:err, user:user, "error unsubscribing person to newsletter"
else
logger.log user:user, "finished unsubscribing user to the newsletter"
callback(err)
changeEmail: (oldEmail, newEmail, callback = ()->)->
options = buildOptions({email:oldEmail})
delete options.body.status
options.body.email_address = newEmail
logger.log {oldEmail, newEmail, options}, "changing email in newsletter"
mailchimp.request options, (err)->
if err? and err?.message?.indexOf("merge fields were invalid") != -1
logger.log {oldEmail, newEmail}, "unable to change email in newsletter, user has never subscribed"
return callback()
else if err? and err?.message?.indexOf("could not be validated") != -1
logger.log {oldEmail, newEmail},
"unable to change email in newsletter, user has previously unsubscribed or new email already exist on list"
return callback()
else if err? and err.message.indexOf("is already a list member") != -1
logger.log {oldEmail, newEmail},
"unable to change email in newsletter, new email is already on mailing list"
return callback()
else if err? and err?.message?.indexOf("looks fake or invalid") != -1
logger.log {oldEmail, newEmail},
"unable to change email in newsletter, email looks fake to mailchimp"
return callback()
else if err?
logger.err {err, oldEmail, newEmail}, "error changing email in newsletter"
return callback(err)
else
logger.log "finished changing email in the newsletter"
return callback()
hashEmail = (email)->
crypto.createHash('md5').update(email.toLowerCase()).digest("hex")
buildOptions = (user, is_subscribed)->
subscriber_hash = hashEmail(user.email)
status = if is_subscribed then "subscribed" else "unsubscribed"
opts =
method: "PUT"
path: "/lists/#{Settings.mailchimp?.list_id}/members/#{subscriber_hash}"
body:
email_address:user.email
status_if_new: status
#only set status if we explictly want to set it
if is_subscribed?
opts.body.status = status
if user._id?
opts.body.merge_fields =
FNAME: user.first_name
LNAME: user.last_name
MONGO_ID:user._id
return opts