feat: enhance error handling and add limits for video downloads

Feature/youtube download

.vscode/launch.json

@@ -0,0 +1,24 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Attach by Process ID",
+            "processId": "${command:PickProcess}",
+            "request": "attach",
+            "skipFiles": [
+                "<node_internals>/**"
+            ],
+            "type": "node"
+        },
+        {
+            "type": "node-terminal",
+            "name": "Run Script: dev (Next-Downloader-Bot)",
+            "request": "launch",
+            "command": "npm run dev",
+            "cwd": "${workspaceFolder}"
+        }
+    ]
+}

apps/bot/locales/en.ftl

@@ -5,11 +5,12 @@ description =
             🟢 **Currently supported:**
             - TikTok
             - Instagram
+            - YouTube
 
             ⚡ Simply send the video link, and the bot will download it for you.
 
 short-description = 
-                Download TikTok, Instagram videos and images.
+                Download TikTok, Instagram and YouTube videos and images.
 
                 For any questions: @v_dev_support
 
@@ -18,10 +19,16 @@ start =
     .description = Start the bot
 
 
-err-invalid-url = ❌ Invalid URL! Please send a valid TikTok or Instagram link (e.g., https://vt.tiktok.com/ or https://www.instagram.com/p/)
+err-invalid-url = ❌ Invalid URL! Please send a valid TikTok, Instagram or YouTube link (e.g., https://vt.tiktok.com/ or https://www.instagram.com/p/ or https://www.youtube.com/)
 err-invalid-download-urls = 🔍 Download links not found. The video might be deleted or unavailable
 err-generic = ⚠️ Something went wrong. Please try again in a few seconds
 err-limit-exceeded = 🚫 Too many requests! Please wait
 
+err-invalid-tiktok-response = 🔍 Invalid TikTok response. The video might be deleted or unavailable
+err-invalid-instagram-response = 🔍 Invalid Instagram response. The post might be deleted or unavailable
+err-invalid-youtube-response = 🔍 Invalid YouTube response. The video might be deleted or unavailable
+err-youtube-duration-exceeded = 🚫 Video duration exceeds limit
+err-youtube-no-quality = 🔍 No suitable quality found for this video
 
-msg-welcome = Welcome! I can download TikTok or Instagram videos and images for you without watermark. Just send me the link (for example: https://vt.tiktok.com/ or https://www.instagram.com/p/)
+
+msg-welcome = Welcome! I can download TikTok, Instagram or YouTube videos and images for you without watermark. Just send me the link (for example: https://vt.tiktok.com/ or https://www.instagram.com/p/ or https://www.youtube.com/)

apps/bot/locales/ru.ftl

@@ -5,11 +5,12 @@ description =
             🟢 **Текущая поддержка:**
             - TikTok 
             - Instagram
+            - YouTube
             
             ⚡ Просто отправьте ссылку на видео и изображения, и бот сразу скачает его для вас!
 
 short-description = 
-                Скачивай видео и изображения из TikTok и Instagram.
+                Скачивай видео и изображения из TikTok, Instagram и YouTube.
 
                 По всем вопросам: @v_dev_support
 
@@ -18,10 +19,16 @@ start =
     .description = Запуск бота
 
 
-err-invalid-url = ❌ Неверная ссылка! Отправьте корректную ссылку TikTok или Instagram (например: https://vt.tiktok.com/ или https://www.instagram.com/p/)
+err-invalid-url = ❌ Неверная ссылка! Отправьте корректную ссылку TikTok, Instagram или YouTube (например: https://vt.tiktok.com/, https://www.instagram.com/p/ или https://www.youtube.com/watch?v=)
 err-invalid-download-urls = 🔍 Не удалось найти ссылки для скачивания. Возможно, видео и изображения удалено или недоступно
 err-generic = ⚠️ Что-то пошло не так. Попробуйте еще раз через несколько секунд
 err-limit-exceeded = 🚫 Слишком много запросов! Подождите немного
 
+err-invalid-tiktok-response = 🔍 Некорректный ответ от TikTok. Видео может быть удалено или недоступно
+err-invalid-instagram-response = 🔍 Некорректный ответ от Instagram. Запись может быть удалена или недоступна
+err-invalid-youtube-response = 🔍 Некорректный ответ от YouTube. Видео может быть удалено или недоступно
+err-youtube-duration-exceeded = 🚫 Длительность видео превышает лимит
+err-youtube-no-quality = 🔍 Не найдено подходящее качество для этого видео
 
-msg-welcome = Добро пожаловать! Я могу скачать для вас видео и изображения из TikTok или Instagram без водяного знака. Для этого просто отправьте мне ссылку (например: https://vt.tiktok.com/ или https://www.instagram.com/p/)
+
+msg-welcome = Добро пожаловать! Я могу скачать для вас видео и изображения из TikTok, Instagram или YouTube без водяного знака. Для этого просто отправьте мне ссылку (например: https://vt.tiktok.com/, https://www.instagram.com/p/ или https://www.youtube.com/watch?v=)

apps/bot/package.json

@@ -31,11 +31,13 @@
     "@repo/typescript-config": "workspace:*",
     "@types/node": "catalog:",
     "axios": "^1.12.0",
+    "axios-cookiejar-support": "^6.0.5",
     "grammy": "^1.37.0",
     "ioredis": "^5.7.0",
     "pino": "^9.9.0",
     "pino-pretty": "^13.1.1",
     "radashi": "^12.6.2",
+    "tough-cookie": "^6.0.0",
     "tsup": "^8.5.0",
     "typescript": "catalog:",
     "zod": "catalog:"

apps/bot/src/bot/features/download.ts

@@ -5,9 +5,10 @@ import { TTL_URLS } from '@/config/redis';
 import { getRedisInstance } from '@/utils/redis';
 import { getTiktokDownloadUrl } from '@/utils/tiktok';
 import { getInstagramDownloadUrl } from '@/utils/instagram';
-import { validateTikTokUrl, validateInstagramUrl } from '@/utils/urls';
+import { validateTikTokUrl, validateInstagramUrl, validateYoutubeUrl } from '@/utils/urls';
 import { Composer, InputFile } from 'grammy';
 import { cluster } from 'radashi';
+import { getYoutubeDownloadUrl } from '@/utils/youtube';
 
 const composer = new Composer<Context>();
 const feature = composer.chatType('private');
@@ -19,8 +20,9 @@ feature.on('message:text', logHandle('download-message'), async (context) => {
 
   const isTikTok = validateTikTokUrl(url);
   const isInstagram = validateInstagramUrl(url);
+  const isYoutube = validateYoutubeUrl(url);
 
-  if (!isTikTok && !isInstagram) {
+  if (!isTikTok && !isInstagram && !isYoutube) {
     return context.reply(context.t('err-invalid-url'));
   }
 
@@ -32,14 +34,26 @@ feature.on('message:text', logHandle('download-message'), async (context) => {
   let imagesUrls: string[] | undefined;
   let videoUrl: string | undefined;
 
-  if (isTikTok) {
-    const result = await getTiktokDownloadUrl(url);
-    imagesUrls = result.images;
-    videoUrl = result.play;
-  } else if (isInstagram) {
-    const result = await getInstagramDownloadUrl(url);
-    imagesUrls = result.images;
-    videoUrl = result.play;
+  try {
+    if (isTikTok) {
+      const result = await getTiktokDownloadUrl(url);
+      imagesUrls = result.images;
+      videoUrl = result.play;
+    } else if (isInstagram) {
+      const result = await getInstagramDownloadUrl(url);
+      imagesUrls = result.images;
+      videoUrl = result.play;
+    } else if (isYoutube) {
+      const result = await getYoutubeDownloadUrl(url);
+      videoUrl = result.play;
+    }
+  } catch (err: any) {
+    const message = err?.message ?? String(err);
+    if (typeof message === 'string' && message.startsWith('err-')) {
+      return context.reply(context.t(message));
+    }
+
+    return context.reply(context.t('err-generic'));
   }
 
   if (!videoUrl && !imagesUrls?.length) {

apps/bot/src/constants/limits.ts

@@ -0,0 +1 @@
+export const MAX_VIDEO_DURATION_SECONDS = 180; // 3 minutes

apps/bot/src/constants/regex.ts

@@ -4,3 +4,5 @@ export const TIKTOK_URL_REGEX =
 
 export const INSTAGRAM_URL_REGEX =
   /https?:\/\/(www\.)?instagram\.com\/(p|reel|tv|stories)\/([a-zA-Z0-9_-]+)(\/)?(\?utm_source=ig_web_copy_link&igshid=[a-z0-9]+)?/u;
+
+export const YOUTUBE_URL_REGEX = /(youtu.*be.*)\/(watch\?v=|embed\/|v|shorts|)(.*?((?=[&#?])|$))/u;

apps/bot/src/utils/instagram.ts

@@ -27,7 +27,7 @@ export async function getInstagramDownloadUrl(url: string) {
     url,
   });
 
-  if (!data) throw new Error('Invalid Instagram response');
+  if (!data) throw new Error('err-invalid-instagram-response');
 
   const isVideo = data.type === 'video' || !data.carouselItems.length;
 

apps/bot/src/utils/tiktok.ts

@@ -39,7 +39,7 @@ export async function getTiktokDownloadUrl(url: string) {
   const res = await axios.get(`https://tikwm.com/api/?url=${encodeURIComponent(url)}`);
   const { data } = res.data as Root;
 
-  if (!data) throw new Error('Invalid TikTok response');
+  if (!data) throw new Error('err-invalid-tiktok-response');
 
   return data;
 }

apps/bot/src/utils/urls.ts

@@ -1,4 +1,4 @@
-import { INSTAGRAM_URL_REGEX, TIKTOK_URL_REGEX } from '@/constants/regex';
+import { INSTAGRAM_URL_REGEX, TIKTOK_URL_REGEX, YOUTUBE_URL_REGEX } from '@/constants/regex';
 
 export function validateTikTokUrl(url: string) {
   return TIKTOK_URL_REGEX.test(url);
@@ -7,3 +7,7 @@ export function validateTikTokUrl(url: string) {
 export function validateInstagramUrl(url: string) {
   return INSTAGRAM_URL_REGEX.test(url);
 }
+
+export function validateYoutubeUrl(url: string) {
+  return YOUTUBE_URL_REGEX.test(url);
+}

apps/bot/src/utils/youtube.ts

@@ -0,0 +1,99 @@
+import { MAX_VIDEO_DURATION_SECONDS } from '@/constants/limits';
+import axios from 'axios';
+import { wrapper } from 'axios-cookiejar-support';
+import * as tough from 'tough-cookie';
+
+const jar = new tough.CookieJar();
+
+const headers = {
+  accept: '*/*',
+  'accept-language': 'ru-RU,ru;q=0.9,en-US;q=0.8,en;q=0.7',
+  'content-type': 'application/json',
+  dnt: '1',
+  priority: 'u=1, i',
+  'sec-ch-ua': '"Google Chrome";v="143", "Chromium";v="143", "Not A(Brand";v="24"',
+  'sec-ch-ua-mobile': '?0',
+  'sec-ch-ua-platform': '"Windows"',
+  'sec-fetch-dest': 'empty',
+  'sec-fetch-mode': 'cors',
+  'sec-fetch-site': 'same-origin',
+  'sec-gpc': '1',
+  'user-agent':
+    'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36',
+};
+
+const client = wrapper(
+  axios.create({
+    jar,
+    withCredentials: true,
+    headers,
+  }),
+);
+
+export interface Media {
+  type: string;
+  quality: string;
+  extension: string;
+  fileSize: number;
+}
+
+export interface InfoRoot {
+  title: string;
+  thumbnail: string;
+  duration: number;
+  medias: Media[];
+}
+
+export interface DownloadRoot {
+  status: string;
+  url: string;
+  filename: string;
+  duration: number;
+}
+
+const qualityOrder = ['144p', '240p', '360p', '480p', '1080p', '720p'].reverse();
+
+export async function getYoutubeDownloadUrl(url: string) {
+  // get session cookie
+  await client.get('https://downr.org/.netlify/functions/analytics');
+
+  // fetch video info
+  const { data: infoData } = await client.post<InfoRoot>(
+    'https://downr.org/.netlify/functions/video-info',
+    {
+      url,
+    },
+  );
+
+  if (!infoData?.medias.length) throw new Error('err-invalid-youtube-response');
+  if (infoData.duration > MAX_VIDEO_DURATION_SECONDS) throw new Error('err-youtube-duration-exceeded');
+
+  let quality: string | undefined;
+
+  for (const q of qualityOrder) {
+    const hasQuality = infoData.medias.find(
+      (media) => media.type === 'video' && media.quality === q && media.extension === 'mp4',
+    );
+
+    if (hasQuality) {
+      quality = q;
+      break;
+    }
+  }
+
+  if (!quality) throw new Error('err-youtube-no-quality');
+
+  // fetch download link
+  const { data: downloadData } = await client.post<DownloadRoot>(
+    'https://downr.org/.netlify/functions/youtube-download',
+    {
+      downloadMode: 'video',
+      url,
+      videoQuality: quality,
+    },
+  );
+
+  return {
+    play: downloadData.url,
+  };
+}

pnpm-lock.yaml

@@ -90,6 +90,9 @@ importers:
       axios:
         specifier: ^1.12.0
         version: 1.12.0
+      axios-cookiejar-support:
+        specifier: ^6.0.5
+        version: 6.0.5(axios@1.12.0)(tough-cookie@6.0.0)
       grammy:
         specifier: ^1.37.0
         version: 1.37.1
@@ -105,6 +108,9 @@ importers:
       radashi:
         specifier: ^12.6.2
         version: 12.6.2
+      tough-cookie:
+        specifier: ^6.0.0
+        version: 6.0.0
       tsup:
         specifier: ^8.5.0
         version: 8.5.0(jiti@2.5.1)(postcss@8.5.6)(tsx@4.20.4)(typescript@5.9.2)(yaml@2.8.1)
@@ -1084,6 +1090,10 @@ packages:
     engines: {node: '>=0.4.0'}
     hasBin: true
 
+  agent-base@7.1.4:
+    resolution: {integrity: sha512-MnA+YT8fwfJPgBx3m60MNqakm30XOkyIoH1y6huTQvC0PwZG7ki8NacLBcrPbNoo8vEZy7Jpuk7+jMO+CUovTQ==}
+    engines: {node: '>= 14'}
+
   ajv@6.12.6:
     resolution: {integrity: sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==}
 
@@ -1193,6 +1203,13 @@ packages:
     resolution: {integrity: sha512-Xm7bpRXnDSX2YE2YFfBk2FnF0ep6tmG7xPh8iHee8MIcrgq762Nkce856dYtJYLkuIoYZvGfTs/PbZhideTcEg==}
     engines: {node: '>=4'}
 
+  axios-cookiejar-support@6.0.5:
+    resolution: {integrity: sha512-ldPOQCJWB0ipugkTNVB8QRl/5L2UgfmVNVQtS9en1JQJ1wW588PqAmymnwmmgc12HLDzDtsJ28xE2ppj4rD4ng==}
+    engines: {node: '>=20.0.0'}
+    peerDependencies:
+      axios: '>=0.20.0'
+      tough-cookie: '>=4.0.0'
+
   axios@1.12.0:
     resolution: {integrity: sha512-oXTDccv8PcfjZmPGlWsPSwtOJCZ/b6W5jAMCNcfwJbCzDckwG0jrYJFaWH1yvivfCXjVzV/SPDEhMB3Q+DSurg==}
 
@@ -2203,6 +2220,16 @@ packages:
     resolution: {integrity: sha512-puUZAUKT5m8Zzvs72XWy3HtvVbTWljRE66cP60bxJzAqf2DgICo7lYTY2IHUmLnNpjYvw5bvmoHvPc0QO2a62w==}
     engines: {node: ^16.14.0 || >=18.0.0}
 
+  http-cookie-agent@7.0.3:
+    resolution: {integrity: sha512-EeZo7CGhfqPW6R006rJa4QtZZUpBygDa2HZH3DJqsTzTjyRE6foDBVQIv/pjVsxHC8z2GIdbB1Hvn9SRorP3WQ==}
+    engines: {node: '>=20.0.0'}
+    peerDependencies:
+      tough-cookie: ^4.0.0 || ^5.0.0 || ^6.0.0
+      undici: ^7.0.0
+    peerDependenciesMeta:
+      undici:
+        optional: true
+
   human-signals@5.0.0:
     resolution: {integrity: sha512-AXcZb6vzzrFAUE61HnN4mpLqd/cSIwNQjtNWR0euPm6y0iqx3G4gOXaIDdtdDwZmhwe82LA6+zinmW4UBWVePQ==}
     engines: {node: '>=16.17.0'}
@@ -3352,10 +3379,21 @@ packages:
     resolution: {integrity: sha512-tX5e7OM1HnYr2+a2C/4V0htOcSQcoSTH9KgJnVvNm5zm/cyEWKJ7j7YutsH9CxMdtOkkLFy2AHrMci9IM8IPZQ==}
     engines: {node: '>=12.0.0'}
 
+  tldts-core@7.0.19:
+    resolution: {integrity: sha512-lJX2dEWx0SGH4O6p+7FPwYmJ/bu1JbcGJ8RLaG9b7liIgZ85itUVEPbMtWRVrde/0fnDPEPHW10ZsKW3kVsE9A==}
+
+  tldts@7.0.19:
+    resolution: {integrity: sha512-8PWx8tvC4jDB39BQw1m4x8y5MH1BcQ5xHeL2n7UVFulMPH/3Q0uiamahFJ3lXA0zO2SUyRXuVVbWSDmstlt9YA==}
+    hasBin: true
+
   to-regex-range@5.0.1:
     resolution: {integrity: sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==}
     engines: {node: '>=8.0'}
 
+  tough-cookie@6.0.0:
+    resolution: {integrity: sha512-kXuRi1mtaKMrsLUxz3sQYvVl37B0Ns6MzfrtV5DvJceE9bPyspOqk9xxv7XbZWcfLWbFmm997vl83qUWVJA64w==}
+    engines: {node: '>=16'}
+
   tr46@0.0.3:
     resolution: {integrity: sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==}
 
@@ -4628,6 +4666,8 @@ snapshots:
 
   acorn@8.15.0: {}
 
+  agent-base@7.1.4: {}
+
   ajv@6.12.6:
     dependencies:
       fast-deep-equal: 3.1.3
@@ -4746,6 +4786,14 @@ snapshots:
 
   axe-core@4.10.3: {}
 
+  axios-cookiejar-support@6.0.5(axios@1.12.0)(tough-cookie@6.0.0):
+    dependencies:
+      axios: 1.12.0
+      http-cookie-agent: 7.0.3(tough-cookie@6.0.0)
+      tough-cookie: 6.0.0
+    transitivePeerDependencies:
+      - undici
+
   axios@1.12.0:
     dependencies:
       follow-redirects: 1.15.11
@@ -5995,6 +6043,11 @@ snapshots:
     dependencies:
       lru-cache: 10.4.3
 
+  http-cookie-agent@7.0.3(tough-cookie@6.0.0):
+    dependencies:
+      agent-base: 7.1.4
+      tough-cookie: 6.0.0
+
   human-signals@5.0.0: {}
 
   husky@9.1.7: {}
@@ -7192,10 +7245,20 @@ snapshots:
       fdir: 6.5.0(picomatch@4.0.3)
       picomatch: 4.0.3
 
+  tldts-core@7.0.19: {}
+
+  tldts@7.0.19:
+    dependencies:
+      tldts-core: 7.0.19
+
   to-regex-range@5.0.1:
     dependencies:
       is-number: 7.0.0
 
+  tough-cookie@6.0.0:
+    dependencies:
+      tldts: 7.0.19
+
   tr46@0.0.3: {}
 
   tr46@1.0.1: