Portuguese Grammar Checker Online.

We would like to have an online grammar checker for Portuguese language. There is a add-on to the LibreOficce that makes grammatical and spell checker. What we'd like to do is use the rules of this add-on in a web application, using php or perl, if necessary. So, user types or paste the text and the app suggest the corrections. In other words, we want to use the system of grammatical and spell checker of LibreOffice and the add-on of correction of the Portuguese language in an application for the web. In fact, we don't even know if it's possible to do it. But we hope that it will be.