FlickrApp is a simple base class to use with Google App Engine (GAE) packages that allows you to use Flickr as a Single Sign On (SSO) provider and validation service.
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  FlickrApp is a simple base class to use with Google App Engine (GAE)
  packages that allows you to use Flickr as a Single Sign On (SSO)
  provider and validation service. As an extra bonus you get a Flickr
  API Auth token in the process!
  Currently this class is designed (and tested) to work with the plain
  vanilla GAE/Django development environment. The next step is to ensure
  that is works with the AppDrop GAE/EC2 container.
  __init__(self, api_key, api_secret)
      Create a new FlickrApp object.
      Remember, this class is not meant to be used on it's own. Rather
      it is a base class that you subclass in your own application. For
          class MyFlickrApp (FlickrApp) :
            def init (self) :
              api_key = "this part is left to you"
              api_secret = "to squirt in to your application"
              FlickrApp.__init__(self, api_key, api_secret)

  check_logged_in(self, min_perms=None)
      Check to see if the current user is logged in. If not, force
      them to re-authenticate your application via the Flickr API
      Auth flow.
      Logged in is defined as having valid 'ffo' and 'fft' cookies.
      'ffo' cookies are constantly renewed for 30 days with each page
      view and map the current user to a user in the FlickrUser database.
      If the cookie is not present or does not validate this method
      returns False.
      'fft' cookies last the duration of the browser session and are
      used to ensure that the user has a token with a minimum permissions
      set. This is done by calling the flickr.auth.checkToken method. If
      the token does not match this method returns False.
      If both cookies validate, the object's 'user' key will be set and
      the method will return True.
      For example:
          class MyHandler (FlickrApp) :
            # Assume __init__ here...
            def get (self) :
              min_perms = 'read'
              if not self.check_logged_in(min_perms) :
              self.response.out.write("Hi there %s" % self.user.username)

  do_flickr_auth(self, min_perms=None)
      This method will generate and redirect the user to the Flickr
      API Auth endpoint where the user will be prompted to approve
      your request for a Flickr token (with 'min_perms' permissions).
  do_token_dance(self, perms=None)
      This is the method you should call from your 'auth' handler; that
      is the URL that you tell the Flickr API Auth flow to redirect to
      once a user has authed your application (in magic Flickr land).
      It will check for a 'frob' parameter and then call the Flickr API
      and exchange it for a valid Flickr Auth token.
      If something goes wrong it will return False, otherwise it will
      redirect the user to your application's root URL (where presumably
      you are calling 'checked_logged_in').
      For example:
          class TokenFrobHandler (FlickrApp) :
              # Assume __init__ here
              def get (self):  
                  try :
                      self.do_token_dance() :
                  except Exception, e :
                      self.response.out.write("OH NOES! SOMETHING WENT WRONG!")


Everything is a bit up in the air still. The documentation will be updated when
the dust settles.

  Just the Google AppEngine (GAE) package itself.