feat: Add YouTube Chrome extension and GDM API - Chrome extension with popup UI, quality selection, server config - YouTube API endpoints: youtube_add, youtube_formats - Background worker with context menu integration - Content script with inline download button

chrome_extension/background.js

@@ -0,0 +1,85 @@
+// GDM YouTube Downloader - Background Service Worker
+// Handles extension lifecycle and context menu integration
+
+// Context menu setup
+chrome.runtime.onInstalled.addListener(() => {
+  chrome.contextMenus.create({
+    id: 'gdm-download',
+    title: 'GDM으로 다운로드',
+    contexts: ['page', 'link'],
+    documentUrlPatterns: ['https://www.youtube.com/*', 'https://youtu.be/*']
+  });
+});
+
+// Context menu click handler
+chrome.contextMenus.onClicked.addListener(async (info, tab) => {
+  if (info.menuItemId === 'gdm-download') {
+    const url = info.linkUrl || tab.url;
+    
+    // Open popup or send directly
+    const stored = await chrome.storage.local.get(['serverUrl']);
+    const serverUrl = (stored.serverUrl || 'http://localhost:9099').replace(/\/$/, '');
+    
+    try {
+      const response = await fetch(
+        `${serverUrl}/gommi_downloader_manager/ajax/queue/youtube_add`,
+        {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({
+            url: url,
+            format: 'bestvideo+bestaudio/best'
+          })
+        }
+      );
+      
+      const data = await response.json();
+      
+      if (data.ret === 'success') {
+        // Show notification
+        chrome.notifications.create({
+          type: 'basic',
+          iconUrl: 'icons/icon128.png',
+          title: 'GDM 다운로드',
+          message: '다운로드가 추가되었습니다!'
+        });
+      }
+    } catch (error) {
+      console.error('GDM download error:', error);
+      chrome.notifications.create({
+        type: 'basic',
+        iconUrl: 'icons/icon128.png',
+        title: 'GDM 오류',
+        message: '서버 연결 실패: ' + error.message
+      });
+    }
+  }
+});
+
+// Message handler for content script
+chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
+  if (request.action === 'download') {
+    handleDownload(request.url, request.format).then(sendResponse);
+    return true; // Async response
+  }
+});
+
+async function handleDownload(url, format = 'bestvideo+bestaudio/best') {
+  const stored = await chrome.storage.local.get(['serverUrl']);
+  const serverUrl = (stored.serverUrl || 'http://localhost:9099').replace(/\/$/, '');
+  
+  try {
+    const response = await fetch(
+      `${serverUrl}/gommi_downloader_manager/ajax/queue/youtube_add`,
+      {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ url, format })
+      }
+    );
+    
+    return await response.json();
+  } catch (error) {
+    return { ret: 'error', msg: error.message };
+  }
+}