Fix spliceFileLines trailing newline, guard memory div-by-zero, WG allowed_ips as UCI list

Author: HudsonGraeme

moci/js/core.js

@@ -718,7 +718,8 @@ export class OpenWrtCore {
 			if (lines.length && lines[lines.length - 1] === '') lines.pop();
 			lines.push(newLine);
 		}
-		return lines.join('\n') + (raw.endsWith('\n') ? '' : '\n');
+		const result = lines.join('\n');
+		return result.endsWith('\n') ? result : result + '\n';
 	}
 
 	resetModal(modalId) {

moci/js/modules/dashboard.js

@@ -32,10 +32,8 @@ export default class DashboardModule {
 		if (hostnameEl) hostnameEl.textContent = boardInfo.hostname || 'OpenWrt';
 		if (uptimeEl) uptimeEl.textContent = this.core.formatUptime(systemInfo.uptime);
 
-		const memPercent = (
-			((systemInfo.memory.total - systemInfo.memory.free) / systemInfo.memory.total) *
-			100
-		).toFixed(0);
+		const memTotal = systemInfo.memory.total || 1;
+		const memPercent = (((memTotal - systemInfo.memory.free) / memTotal) * 100).toFixed(0);
 		if (memoryEl) memoryEl.textContent = this.core.formatMemory(systemInfo.memory);
 		if (memoryBarEl) memoryBarEl.style.width = memPercent + '%';
 	}

moci/js/modules/network.js

@@ -878,6 +878,11 @@ export default class NetworkModule {
 
 	saveWgPeer() {
 		const ifaceName = document.getElementById('wg-interface').value || 'wg0';
+		const allowedIpsRaw = document.getElementById('edit-wg-peer-allowed-ips')?.value || '';
+		const allowed_ips = allowedIpsRaw
+			.split(/[,\s]+/)
+			.map(s => s.trim())
+			.filter(Boolean);
 		this.core.uciSave({
 			config: 'network',
 			uciType: `wireguard_${ifaceName}`,
@@ -886,10 +891,10 @@ export default class NetworkModule {
 			fieldMap: {
 				'edit-wg-peer-name': 'description',
 				'edit-wg-peer-public-key': 'public_key',
-				'edit-wg-peer-allowed-ips': 'allowed_ips',
 				'edit-wg-peer-keepalive': 'persistent_keepalive',
 				'edit-wg-peer-preshared-key': 'preshared_key'
 			},
+			defaults: { allowed_ips },
 			reloadFn: () => this.loadVPN(),
 			successMsg: 'WireGuard peer saved'
 		});