Start basic LDAP server groundwork

app/unit/LDAPRegistry.js

@@ -0,0 +1,21 @@
+const Unit = require('libflitter/Unit')
+
+class LDAPRegistry extends Unit {
+    static get name() {
+        return 'ldap_registry'
+    }
+
+    static get services() {
+        return [...super.services, 'output']
+    }
+
+    async go(app) {
+
+    }
+
+    async cleanup(app) {
+
+    }
+}
+
+module.exports = exports = LDAPRegistry

app/unit/LDAPServerUnit.js

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+const Unit = require('libflitter/Unit')
+const LDAP = require('ldapjs')
+
+class LDAPServerUnit extends Unit {
+    static get name() {
+        return 'ldap_server'
+    }
+
+    static get services() {
+        return [...super.services, 'configs', 'express', 'output']
+    }
+
+    async go(app) {
+        this.config = this.configs.get('ldap:server')
+        const server_config = {}
+
+        // If Flitter is configured to use an SSL certificate,
+        // use it to enable LDAPS in the server.
+        if ( this.express.use_ssl() ) {
+            this.output.info('[LDAP Server] Using configured SSL certificate to enable LDAPS.')
+            server_config.certificate = await this.express.ssl_certificate()
+            server_config.key = await this.express.ssl_key()
+        }
+
+        this.server = LDAP.createServer(server_config)
+
+        if ( this.config.max_connections ) {
+            this.server.maxConnections = this.config.max_connections
+        }
+
+        this.output.info(`[LDAP Server] Will listen on ${this.config.interface}:${this.config.port}`)
+        await new Promise((res, rej) => {
+            this.server.listen(this.config.port, this.config.interface, () => {
+                res()
+            })
+        })
+    }
+
+    async cleanup(app) {
+        this.server.close()
+    }
+}
+
+module.exports = exports = LDAPServerUnit