Cleaned up file layout

nodejs/services/host_lookup.js

@@ -0,0 +1,62 @@
+'use strict';
+
+const {Host} = require('../models/host');
+const {SocketServerJson} = require('../utils/unix_socket_json');
+const conf = require('../conf');
+
+/**
+ * Host Lookup Service
+ *
+ * Unix socket server that handles host/domain lookup requests from OpenResty.
+ * This provides the bridge between nginx (Lua) and the Node.js host management system.
+ *
+ * Flow:
+ * 1. OpenResty sends domain lookup request via Unix socket
+ * 2. Service queries Host model (supports wildcards via lookup tree)
+ * 3. Returns host configuration (IP, port, SSL settings, etc.)
+ * 4. All values converted to strings for Redis compatibility
+ *
+ * Redis Compatibility:
+ * All object values are converted to strings before sending because:
+ * - Redis stores everything as strings
+ * - OpenResty's primary lookup path uses Redis directly (hgetall)
+ * - This socket is a fallback when Redis cache misses
+ * - Both paths must return identical data structures to Lua consumer
+ */
+
+const socket = new SocketServerJson({
+	socketFile: conf.socketFile,
+
+	onData: function(data, clientSocket) {
+		try{
+			// Try to match the requested host name using the lookup tree
+			let parentHost = Host.lookUp(data['domain']);
+
+			// If we don't have a match, return empty object
+			if(!parentHost) return clientSocket.write(JSON.stringify({}));
+
+			// If the matched host belongs to a wildcard domain, set wildcard_parent
+			// This allows child domains to use the parent's wildcard SSL certificate
+			if(!parentHost.wildcard_parent){
+				parentHost.wildcard_parent = parentHost.host;
+				Host.addCache(data['domain'], parentHost);
+			}
+
+			// Convert all values to strings for Redis compatibility
+			// OpenResty expects the same data format from both Redis and this socket
+			for(const [key, value] of Object.entries(parentHost)) {
+				parentHost[key] = String(value);
+			}
+
+			clientSocket.write(JSON.stringify(parentHost));
+		}catch(error){
+			console.error('services/host_lookup onData error', error);
+		}
+	},
+
+	onListen: function(){
+		console.log('Host lookup service listening on', conf.socketFile);
+	}
+});
+
+module.exports = {socket};

nodejs/services/host_scheduler.js

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+'use strict';
+
+const {Host} = require('../models/host');
+
+/**
+ * Host Scheduler Service
+ *
+ * Manages scheduled tasks for host-related operations:
+ * - Wildcard SSL certificate renewal checks
+ *
+ * Schedule:
+ * - Initial check: 30 seconds after application starts
+ * - Recurring checks: Every 24 hours (86400000ms)
+ *
+ * The checkWildcardForRenew method:
+ * - Iterates through all hosts in the system
+ * - Checks if wildcard certificates are expiring within 30 days
+ * - Automatically renews certificates that are approaching expiration
+ */
+
+// Initial wildcard cert check 30 seconds after app starts
+// Delay allows the system to fully initialize before checking certs
+setTimeout(Host.checkWildcardForRenew, 30000);
+
+// Check wildcard certs once every 24 hours
+// Ensures certificates are renewed well before expiration
+setInterval(Host.checkWildcardForRenew, 86400000);
+
+console.log('Host scheduler service initialized');
+console.log('- Wildcard cert check: 30s after start, then every 24h');
+
+module.exports = {};