WebpayProxy - PHP Proxy for Webpay Webservice normal transaction

webpayProxy is a PHP project written with CodeIgniter that lets you forget about the WSSE services from Webpay and lets you focus on your code.

Make a few configurations, copy your certificates and deploy the proxy.

Configuration

Create an environment variable called DATABASE_URL with the Connection string for your database.
```
export DATABASE_URL=postgres://webpay:webpay@localhost:6212/webpay
```
The proxy uses PostgreSQL to store persistance between request. If you want to use another database manager change the configuration in /application/config/database.php

Change the values in /application/config/constants.php if they differ

define('COMMERCE_ID', ''); //place your commerce code here
define('WEBPAY_WSDL', 'https://webpay3g.orangepeople.cl/WSWebpayTransaction/cxf/WSWebpayService?wsdl');
define('PRIVATE_KEY', 'certificates/private.key'); // this is the path to your certificate private key
define('STORE_CERT', 'certificates/store.crt'); // this is the path of the certificate that was sent to webpay
define('SERVER_CERT', 'certificates/server.crt'); //this is the path for webpay certificate

Copy your private.key and store.crt to the /certificates folder, if the names are different you should change the path in the constants mention in step 2.

Deploy

Deploy the proyect to any VPS with PHP5 containing mcrypt and pgsql modules, the last one only if your going to use PostgreSQL.

Deployment to Heroku

Follow the instructions in the documentation

Requirements

PHP 5.5.9 or above (at least 5.3.4 recommended to avoid potential bugs)
PostgreSQL

Integration

Make a POST request to /transaction/init in application/x-www-form-urlencoded with the following vars

finalUrl: The Url to be redirected after the transaction has been completed, either with or without errors
sessionId: An identifier of the order
buyOrder: The order number
amount: The amount to be charged

Accept POST request in the finalUrl to handle the response of the transaction.

You need to handle if the transaction has been successful or had errors, if the transaction had errors you'll recieve a error post var with a message of the cause of the error.