Search filter checking method added to the LDAP web service

The latest 1.8.1 release of the directory web service Json2Ldap adds a new JSON-RPC method for validating search filters. It can be used for example to check user input filter strings before making an actual ldap.search request.

This is a simple utility method that takes just one parameter – the filter string. Note that an LDAP connection is not required for this operation, so no CID (connection identifier) needs to be passed.

Example JSON request:

{ "method"  : "ldap.util.isValidFilter",
  "params"  : { "filter" : "&(objectClass=person)(givenName=Alice)" },
  "id"      : "0001",
  "jsonrpc" : "2.0" 
}

And here is the resulting JSON response indicating the filter was correct:

{ "result"  : true,
  "id"      : "0001",
  "jsonrpc" : "2.0" 
}

With this the “static” utility methods of Json2Ldap become five. The other served requests are:

• Validate a directory distinct name (DN) with ldap.util.isValidDN.
• Normalise a DN with ldap.util.normalizeDN.
• Compare (order) two DNs with ldap.util.compareDNs.
• Encode a search filter assertion value with ldap.util.encodeFilterValue.

The online Json2Ldap API docs have full details on these JSON calls.