FastSpring payment notification listener

Author: matteoagosti

src/scripts/fastspring.coffee

@@ -0,0 +1,51 @@
+# Description
+#   An HTTP listener for FastSpring payment notifications
+#
+# Dependencies:
+#   None
+#
+# Configuration:
+#   HUBOT_FASTSPRING_PRIVATE_KEY
+#
+# Commands:
+#   None
+#
+# URLS:
+#   POST /hubot/fastspring
+#     room=<room>
+#     fullName=<customer's full name>
+#     email=<customer's email>
+#     productName=<product name, can also be an array of products>
+#     totalPriceValue=<total price value>
+#     totalPriceCurrency=<total price currency>
+#     url=<invoice's url>
+#
+# Notes:
+#   See FastSpring notifications overview for further details
+#   https://support.fastspring.com/entries/236490-Notifications-Overview
+#
+# Author:
+#   matteoagosti
+
+http = require "http"
+querystring = require "querystring"
+crypto = require "crypto"
+
+module.exports = (robot) ->
+  privateKey = process.env.HUBOT_FASTSPRING_PRIVATE_KEY
+
+  unless privateKey
+    robot.logger.error "Please set the HUBOT_FASTSPRING_PRIVATE_KEY environment variable."
+    return
+
+  robot.router.post "/hubot/fastspring", (req, res) ->
+    query = req.body
+    res.end
+
+    unless query.room
+      return
+
+    unless crypto.createHash("md5").update(query.security_data + privateKey, 'utf8').digest('hex') is query.security_hash
+      return
+
+    robot.messageRoom query.room, "#{query.fullName} (#{query.email}) just bought #{query.productName} for #{query.totalPriceValue}#{query.totalPriceCurrency}. #{query.url}"