Support for mapping user after a Bind request

[xunleii]

Is your feature request related to a problem? Please describe.
I am creating an LDAP server using gldap and I can't figure out how to ensure that a user performing a search operation has been successfully authenticated just before.

Describe the solution you'd like
It might be helpful to provide at least the connection ID on each message to know "who" (i.e. which connection) made the request.

Describe alternatives you've considered
I tried to use any accessible information on the request message to bypass that, but couldn't find anything that would help.

[jimlambrt]

Ty for opening this issue! It should be fairly simple to implement. Look for a PR later today.

[jimlambrt]

let me know if you have any questions. thanks again for opening the issue.

[xunleii]

Hi @jimlambrt, that was very quick! Thank you very much for your PR, it was what I was waiting for.

[pyxistools]

@jimlambrt , I saw your example where you use map authenticatedConnections in bindHandler() to track authenticated users and use Request.ConnectionID() in searchHandler() to check if the client is authenticated. But you don't clean up this map on unbind or client disconnect. Does the library provide a way to handle client disconnect event? Without it, the map can't be cleaned properly.

[pyxistools]

Answering my question: There is a server option gldap.WithOnClose() for setting client disconnect handler. The handler receives one argument - closed connection ID. It would be nice to have this in the example for completeness.

[jimlambrt]

Opened #70 which adds gldap.OnClose func to example.