Support for creds in headers and authorization

[dkhunt27]

• added support for user/pass in headers
• added support for to pass authentication options back to verify function; this will allow for authorization.

for instance

• app.post("/someAdminSerice", passport.authenticate('ldapauth', { authorizatioRole:"admin" }), function(req, res) {....});
• app.post("/somePublicSerice", passport.authenticate('ldapauth', { authorizatioRole:"public" }), function(req, res) {....});

And in the verify function, you can check to see if those roles are associated with that user.

[vesse]

Hi,

You can easily use custom callback to achieve the authorization, eg.

app.post('/someAdminService', function(req, res, next) {
  passport.authenticate('ldapauth', function(err, user, info) {
    // Handle authorization here
  })(req, res, next);
});

Adding basic auth has already been proposed in #4 and can be achieved with passport-http and ldapauth-fork.