Add basic LDAP bind functionality

app/ldap/middleware/Logger.middleware.js

@@ -0,0 +1,15 @@
+const LDAPMiddleware = require('./LDAPMiddleware')
+
+class LDAPLoggerMiddleware extends LDAPMiddleware {
+    static get services() {
+        return [...super.services, 'app', 'output']
+    }
+
+    async test(req, res, next) {
+        let bind_dn = req.connection.ldap.bindDN
+        this.output.info(`${req.json.protocolOp} - as ${bind_dn ? bind_dn.format({skipSpace: true}) : 'N/A'} - target ${req.dn.format({skipSpace: true})}`)
+        return next()
+    }
+}
+
+module.exports = exports = LDAPLoggerMiddleware