Support for LDAP protocol version

[josefsabl]

LDAP in its defaul configuration has problems with non UTF8 encodings and diacritics. It can be configured by using.

ldap_set_option($ldap, LDAP_OPT_PROTOCOL_VERSION, 3);

But there is no obvious way how to configure this it this authenticator.

[foglcz]

👍

Thanks for catching this!

[josefsabl]

Today we encountered another problem related to this. The version of protocol obviously doesn't affect only diacritics. We ran into the problem where on specific system it was impossible to connect to LDAP server at all. The problem was solved by setting protocol version to 3. As noted here.

http://stackoverflow.com/questions/7720795/php-5-3-5-ldap-search-search-cant-contact-ldap-server

[josefsabl]

And now I realized that it in fact is supported, only not documented. You can specify it in config.neon as:

ldap:
    hostname: 
    port: 
    baseDn: 
    domain:
    loadGroups: true
    options:
        17: 3                   # 17 == LDAP_OPT_PROTOCOL_VERSION const