Paste Stack

I think the middleware cascade should be something like

• lint (check's wsgi compliance)
  • log (set up logging)
    • selector/routes
      • config file load
        • page-setup and cookie grab
          • gatekeep (authorisation)
            • browse
            • WMS
            • WCS
            • WPS
            • WFS
            • CSML-API
          • discovery (NDG)
          • discovery (CSW) (!)
          • login

Of course not all bits will be present in any particular implementation .... so configuration is key.

URLS

• discovery
• view, e.g.
  • http://domainName/ndg/view/uri is the html version laid out "nice"
  • http://domainName/ndg/view/uri?format=xml is an html version of the xml
  • http://domainName/ndg/retrieve/uri returns the raw document in xml.
  • in all three cases, a further addition to the query string original=1 will be interpretted for DIF requests, and ignored for others ,e.g
    • http://domainName/ndg/view/uri?original=1 or
    • http://domainName/ndg/view/uri?format=xml&original=1
• login, used to login at THIS site e.g.
  • http://domainName/ndg/login?r=url will login and redirect back to url
• logout,e.g.
  • http://domainName/ndg/logout?r=url will kill cookies and redirect back to url
• wayf, e.g.
  • http://domainName/ndg/wayf?r=url will provide a WAYF screen, with all options (to logins) linked with the redirect...
• wms/wcs
  • http://domainName/ndg/wms/uri is a wms endpoint for a csml_granule uri
  • http://domainName/ndg/wcs/uri is a wcs endpoint for a csml_granule uri
• csml api
  • http://domainName/ndg/csml/uri is the csml api endpoint for a document
• gui, we expect to post a shopping cart to the gui, or allow a user to save the shopping cart and upload it ...
  • http://domainName/ndg/viz
• do we need to worry about an ftp/wget interface?

This will be encoded in the routing.py file in the pylons config directory!

Reality

So, getting started with this, I

• did an easy_install of csml from svn:

  easy_install $SVN/TI02-CSML/trunk
  

• and then I went into the delivery code to set up the ows framework egg

  cd TI05-delivery/ows_framework/trunk/ows_common
  python setup.py develop
  

• and now I try to run pylons:

  cd ../ows_server
  paster serve --reload development.ini