add clipboard copy functionality and restrict firewall commands to localhost

static/app.js

@@ -123,6 +123,23 @@ document.addEventListener('DOMContentLoaded', () => {
         }
     };
 
+    window.copyToClipboard = async (elementId) => {
+        const text = document.getElementById(elementId).textContent;
+        const btn = event.currentTarget;
+        try {
+            await navigator.clipboard.writeText(text);
+            const originalHtml = btn.innerHTML;
+            btn.classList.add('copied');
+            btn.innerHTML = '<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"></polyline></svg>';
+            setTimeout(() => {
+                btn.classList.remove('copied');
+                btn.innerHTML = originalHtml;
+            }, 2000);
+        } catch (err) {
+            console.error('Failed to copy: ', err);
+        }
+    };
+
     function escapeHtml(unsafe) {
         if (!unsafe) return '';
         return unsafe.toString()

static/index.html

@@ -50,11 +50,21 @@
                 <p class="helper-text">Run these commands on the machine running XIVLauncher to allow incoming connections on the specified port.</p>
                 <div class="code-block">
                     <span class="code-label">UFW</span>
-                    <code id="ufw-cmd">sudo ufw allow 4646/tcp</code>
+                    <div class="code-wrapper">
+                        <code id="ufw-cmd">sudo ufw allow from localhost to any port 4646 proto tcp</code>
+                        <button class="btn-copy" onclick="copyToClipboard('ufw-cmd')" title="Copy to clipboard">
+                            <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"></rect><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path></svg>
+                        </button>
+                    </div>
                 </div>
                 <div class="code-block">
                     <span class="code-label">iptables</span>
-                    <code id="iptables-cmd">sudo iptables -I INPUT -p tcp --dport 4646 -j ACCEPT</code>
+                    <div class="code-wrapper">
+                        <code id="iptables-cmd">sudo iptables -I INPUT -p tcp -s localhost --dport 4646 -j ACCEPT</code>
+                        <button class="btn-copy" onclick="copyToClipboard('iptables-cmd')" title="Copy to clipboard">
+                            <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"></rect><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path></svg>
+                        </button>
+                    </div>
                 </div>
             </div>
 

static/style.css

@@ -262,4 +262,38 @@ input:focus {
 
 .code-block code {
     color: #34d399;
+    word-break: break-all;
+}
+
+.code-wrapper {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    gap: 1rem;
+}
+
+.btn-copy {
+    background: transparent;
+    border: none;
+    color: var(--text-muted);
+    cursor: pointer;
+    padding: 0.25rem;
+    border-radius: 4px;
+    transition: all 0.2s;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.btn-copy:hover {
+    background-color: rgba(255, 255, 255, 0.1);
+    color: var(--text-main);
+}
+
+.btn-copy:active {
+    transform: scale(0.95);
+}
+
+.btn-copy.copied {
+    color: var(--status-online);
 }