fix: resolve P2 and P3 audit findings

src/components/AddDownloadsModal.tsx

@@ -317,6 +317,7 @@ export const AddDownloadsModal = () => {
 
   // Metadata parser
   useEffect(() => {
+    let active = true;
     const lines = urls.split('\n').map(u => u.trim()).filter(u => u.length > 0);
 
     // Immediately display items in loading state
@@ -340,6 +341,7 @@ export const AddDownloadsModal = () => {
       let firstReadyIndex: number | null = null;
 
       for (let i = 0; i < lines.length; i++) {
+        if (!active) break;
         const url = lines[i];
         try {
           new URL(url);
@@ -408,15 +410,18 @@ export const AddDownloadsModal = () => {
           console.error("Meta fetch failed", e);
           updatedItems[i] = { ...updatedItems[i], size: 'Unknown', sizeBytes: 0, status: 'Error' };
         }
-        setParsedItems([...updatedItems]);
+        if (active) setParsedItems([...updatedItems]);
       }
 
-      if (firstReadyIndex !== null) {
+      if (active && firstReadyIndex !== null) {
         setSelectedItemIndex(firstReadyIndex);
       }
     }, 400);
 
-    return () => clearTimeout(timer);
+    return () => {
+      active = false;
+      clearTimeout(timer);
+    };
   }, [urls, pendingAddFilename]);
 
   if (!isAddModalOpen) return null;

src/components/SettingsView.tsx

@@ -245,6 +245,11 @@ export default function SettingsView() {
                     type="number" min="1" max="16"
                     value={settings.perServerConnections}
                     onChange={(e) => settings.setPerServerConnections(Number(e.target.value))}
+                    onBlur={(e) => {
+                      const val = Number(e.target.value);
+                      if (val < 1) settings.setPerServerConnections(1);
+                      if (val > 16) settings.setPerServerConnections(16);
+                    }}
                     className="app-control w-24 text-center"
                   />
                 </div>
@@ -257,6 +262,11 @@ export default function SettingsView() {
                     type="number" min="1" max="12"
                     value={settings.maxConcurrentDownloads}
                     onChange={(e) => settings.setMaxConcurrentDownloads(Number(e.target.value))}
+                    onBlur={(e) => {
+                      const val = Number(e.target.value);
+                      if (val < 1) settings.setMaxConcurrentDownloads(1);
+                      if (val > 12) settings.setMaxConcurrentDownloads(12);
+                    }}
                     className="app-control w-24 text-center"
                   />
                 </div>
@@ -285,6 +295,11 @@ export default function SettingsView() {
                     type="number" min="0" max="10"
                     value={settings.maxAutomaticRetries}
                     onChange={(e) => settings.setMaxAutomaticRetries(Number(e.target.value))}
+                    onBlur={(e) => {
+                      const val = Number(e.target.value);
+                      if (val < 0) settings.setMaxAutomaticRetries(0);
+                      if (val > 10) settings.setMaxAutomaticRetries(10);
+                    }}
                     className="app-control w-24 text-center"
                   />
                 </div>
@@ -453,9 +468,14 @@ export default function SettingsView() {
                     <div className="mac-settings-row">
                       <span className="text-[13px] text-text-primary pl-4">Proxy Port</span>
                       <input
-                        type="number"
+                        type="number" min="1" max="65535"
                         value={settings.proxyPort}
                         onChange={(e) => settings.setProxyPort(Number(e.target.value))}
+                        onBlur={(e) => {
+                          const val = Number(e.target.value);
+                          if (val < 1) settings.setProxyPort(1);
+                          if (val > 65535) settings.setProxyPort(65535);
+                        }}
                         className="app-control w-24 text-center"
                       />
                     </div>

src/store/useDownloadStore.ts

@@ -9,6 +9,7 @@ import { useSettingsStore } from './useSettingsStore';
 export type { DownloadCategory } from '../utils/downloads';
 
 const getProxyArgs = (settings: ReturnType<typeof useSettingsStore.getState>) => {
+  if (settings.proxyMode === 'system') return 'system';
   if (settings.proxyMode === 'custom' && settings.proxyHost) {
     return `http://${settings.proxyHost}:${settings.proxyPort}`;
   }
@@ -25,7 +26,8 @@ export const getSiteLogin = (url: string, settings: ReturnType<typeof useSetting
         const suffix = pattern.substring(2);
         if (host === suffix || host.endsWith('.' + suffix)) return login;
       } else if (pattern.includes('*')) {
-        const regex = new RegExp('^' + pattern.replace(/\*/g, '.*') + '$');
+        const escaped = pattern.replace(/[.+?^${}()|[\]\\]/g, '\\$&');
+        const regex = new RegExp('^' + escaped.replace(/\*/g, '.*') + '$');
         if (regex.test(host)) return login;
       } else if (host === pattern) {
         return login;
@@ -191,9 +193,13 @@ export const useDownloadStore = create<DownloadState>((set, get) => ({
   },
   redownload: (id) => {
     let updatedItem: DownloadItem | null = null;
+    let wasDownloading = false;
     set((state) => ({
       downloads: state.downloads.map(d => {
         if (d.id === id) {
+          if (d.status === 'downloading') {
+            wasDownloading = true;
+          }
           const updated: DownloadItem = { ...d, status: 'queued', _dispatched: false, fraction: 0, speed: '-', eta: '-' };
           updatedItem = updated;
           return updated;
@@ -201,6 +207,9 @@ export const useDownloadStore = create<DownloadState>((set, get) => ({
         return d;
       })
     }));
+    if (wasDownloading) {
+      invoke('pause_download', { id }).catch(console.error);
+    }
     if (updatedItem) {
       const toSave = { ...(updatedItem as DownloadItem) };
       delete toSave.fraction; delete toSave.speed; delete toSave.eta;

src/utils/downloads.ts

@@ -11,8 +11,10 @@ const MEDIA_DOMAINS = [
   'instagram.com',
   'tiktok.com',
   'reddit.com',
+  'v.redd.it',
   'soundcloud.com',
-  'facebook.com'
+  'facebook.com',
+  'fb.watch'
 ];
 
 export const categoryForFileName = (fileName: string): DownloadCategory => {