node-payments

config = require( "../../lib/config" ) request = require( "request" ) _ = require( "lodash" ) class PayPalIpn extends require( "../_base/main" ) initialize: => @initialized = false @_currencies = config.get( "defaultcurrency" ) #@initIPN() return init: ( @main )=> if not @initialized @initialized = true server = @main.getExpress() server.post @config.receiverPath, @verify, @input return verify: ( req, res, next )=> @debug "REQUEST INCOME", req.body _formdata = _.extend( {}, req.body, cmd: "_notify-validate" ) _url = ( if @config.secure then "https://" else "http://" ) + @config.host + ( if not @config.port? or @config.port isnt 80 then ":" + @config.port else "" ) if not @config.listenport # use live ipn path _url += @config.ppReturnPath else # use internal ipn server for testing _url += @config.receiverPath opt = method: "POST" url: _url form: _formdata request opt, ( err, resp, body )=> @info "VERIFY IPN MESSAGE", opt, err, body if err @error( err ) res.send( "FAILED", 500 ) return if body is "VERIFIED" next() else @error( err ) res.send( "FAILED", 500 ) return return input: ( req, res, next )=> try _pid = req.body.custom _status = req.body.payment_status.toUpperCase() _receiver = req.body.receiver_email _currency = req.body.mc_currency _transaction = req.body.txn_id _atype = @_currencies[ _currency ] if _atype is "int" _amount = parseInt( req.body.mc_gross, 10 ) else _amount = parseFloat( req.body.mc_gross, 10 ) if @config.receiver_email? and _receiver isnt @config.receiver_email @_handleError( null, "EPPIPNINVALIDRECEIVER", { got: _receiver, needed: @config.receiver_email } ) res.send( "FAILED", 500 ) return @main.getPayment _pid, ( err, payment )=> if err if not config.get( "productionmode" ) and err?.name is "EPAYMENTNOTFOUND" @warning( "Payment not found in system so return a 200 to IPN" ) res.send( "NOTFOUND", 200 ) return @error( err ) res.send( "FAILED", 500 ) return @debug "IPN returned", _pid, payment.valueOf() if _currency isnt payment.currency @_handleError( null, "EPPIPNINVALIDCURRENCY", { got: _currency, needed: payment.currency } ) res.send( "FAILED", 500 ) return if Math.abs( _amount ) isnt payment.amount @_handleError( null, "EPPIPNINVALIDAMOUNT", { got: _amount, needed: payment.amount } ) res.send( "FAILED", 500 ) return payment.set( "rawProviderState", req.body.payment_status ) payment.set( "state", _status ) payment.set( "transaction", _transaction ) payment.set( "verified", true ) payment.persist ( err )=> if err @error( err ) res.send( "FAILED", 500 ) return @main.emit( "payment", "verfied", payment ) @main.emit( "payment:#{payment.id}", "verfied", payment ) @main.emit( "verfied", payment ) res.send( "OK" ) return return catch _err @error( _err ) res.send( "FAILED", 500 ) return return ERRORS: => @extend super, "EPPIPNINVALIDRECEIVER": "The paypal IPN sends a completed message for a wrong receiver. Has to be `<%= needed %>` bot got `<%= got %>`." "EPPIPNINVALIDCURRENCY": "The paypal IPN sends a currency unlike the expected. Has to be `<%= needed %>` bot got `<%= got %>`." "EPPIPNINVALIDAMOUNT": "The paypal IPN sends a amount unlike the expected. Has to be `<%= needed %>` bot got `<%= got %>`." module.exports = new PayPalIpn()