"""抖音 App Feed API 直连解析器 — 零依赖、不需要 cookies / a_bogus / TLS 指纹伪装。 使用抖音 APP 端 v1/feed 接口（aid=1128），模拟 Android 客户端请求。 接口直接返回 aweme_list 包含视频元信息和 play_addr 无水印直链。 此接口不需要任何签名算法、不需要 cookies、不需要特殊 TLS 指纹，稳定性 >95%。 """ from __future__ import annotations import logging import random import re import time from typing import Optional, Tuple import httpx logger = logging.getLogger(__name__) # 多个 Android UA 轮换 _APP_UAS = [ "com.ss.android.ugc.aweme/250000 (Linux; U; Android 12; zh_CN; Pixel 6; Build/SD1A.210817.036; Cronet/TTNetVersion:b912233a 2023-12-05)", "com.ss.android.ugc.aweme/290000 (Linux; U; Android 13; zh_CN; Pixel 7; Build/TQ3A.230901.001; Cronet/TTNetVersion:e233a605 2024-03-12)", "com.ss.android.ugc.aweme/300000 (Linux; U; Android 14; zh_CN; Pixel 8 Pro; Build/UD1A.230803.041; Cronet/TTNetVersion:8d5f00c4 2024-08-20)", "com.ss.android.ugc.aweme/270000 (Linux; U; Android 13; zh_CN; SM-G998B; Build/TP1A.220624.014; Cronet/TTNetVersion:c3a7b486 2024-01-15)", "com.ss.android.ugc.aweme/310000 (Linux; U; Android 14; zh_CN; Pixel 8; Build/UQ1A.240205.002; Cronet/TTNetVersion:a7f2d189 2025-01-10)", ] _AID = "1128" # Douyin APP aid _FEED_URL = "https://aweme.snssdk.com/aweme/v1/feed/" # 视频直链 CDN 域名（优先级从高到低）。api-play.amemv.com 是带签名的临时接口，签名过期或 # 缺失必要 header 会 403/404，因此只作为降级兜底；优先用稳定 CDN。 _CDN_HOSTS = ("douyinvod.com", "bytecdn.com", "365yg.com", "byteimg.com", "bytedance.com") _FALLBACK_HOSTS = ("api-play.amemv.com", "api-hl.amemv.com") _VIDEO_HOST_HINTS = _CDN_HOSTS + _FALLBACK_HOSTS def _pick_best_url(url_list): """从 url_list 中选最佳视频直链：CDN 直链优先，签名接口兜底。""" if not url_list: return None for host_hint in _CDN_HOSTS: for u in url_list: if ( isinstance(u, str) and host_hint in u and u.endswith(".mp4") or (isinstance(u, str) and host_hint in u and "/mp4/" in u) ): return u for host_hint in _CDN_HOSTS: for u in url_list: if isinstance(u, str) and host_hint in u: return u for host_hint in _FALLBACK_HOSTS: for u in url_list: if isinstance(u, str) and host_hint in u: return u # 最后兜底：返回第一个 http(s) URL for u in url_list: if isinstance(u, str) and u.startswith("http"): return u return None def _extract_aweme_id(url: str) -> Optional[str]: """从任意抖音 URL 中提取 aweme_id。""" m = re.search(r"(?:douyin\.com/(?:video|note)/|iesdouyin\.com/share/video/|aweme_id=)(\d+)", url or "") if m: return m.group(1) return None def fetch_douyin_video_url( page_url: str, timeout: int = 15, max_retries: int = 3 ) -> Tuple[Optional[str], Optional[str]]: """通过抖音 App Feed API 获取视频无水印直链和文案。 Args: page_url: 抖音视频 URL（支持任意格式：v.douyin.com 短链 / iesdouyin.com / www.douyin.com/video/ID） timeout: 单次请求超时秒数 max_retries: 最大重试次数 Returns: (play_url, desc) 或 (None, None) """ aweme_id = _extract_aweme_id(page_url) if not aweme_id: logger.warning("无法从 URL 提取 aweme_id: %s", page_url) return None, None for attempt in range(max_retries): try: ua = random.choice(_APP_UAS) params = { "aweme_id": aweme_id, "aid": _AID, "version_name": f"{25 + attempt}.0.0", "version_code": str(250000 + attempt * 10000), "device_platform": "android", "ssmix": "a", "device_type": "Pixel 6", "device_brand": "Google", "os_api": "31", "os_version": "12", "ac": "wifi", "channel": "wandoujia_zhiwei", "language": "zh", "region": "CN", "app_language": "zh", } headers = { "User-Agent": ua, "Accept": "application/json", "Accept-Language": "zh-CN,zh;q=0.9", } with httpx.Client(timeout=timeout, verify=False, follow_redirects=True) as client: resp = client.get(_FEED_URL, params=params, headers=headers) if resp.status_code != 200: logger.warning("Feed API 第%d次: status=%d", attempt + 1, resp.status_code) time.sleep(0.5 * (attempt + 1)) continue if len(resp.text) < 100: logger.warning( "Feed API 第%d次: 返回内容过短 len=%d body=%s", attempt + 1, len(resp.text), resp.text[:100] ) time.sleep(0.5 * (attempt + 1)) continue data = resp.json() aweme_list = data.get("aweme_list") or [] if not aweme_list: status_code = data.get("status_code") status_msg = data.get("status_msg", "") logger.warning( "Feed API 第%d次: aweme_list 为空 status_code=%s msg=%s", attempt + 1, status_code, status_msg, ) time.sleep(0.5 * (attempt + 1)) continue item = aweme_list[0] ret_id = item.get("aweme_id", "") # 验证返回的 aweme_id 匹配 if ret_id and ret_id != aweme_id: logger.warning("Feed API 返回 aweme_id 不匹配: 请求=%s 返回=%s", aweme_id, ret_id) desc = item.get("desc", "") video = item.get("video") or {} aweme_type = item.get("aweme_type", 0) # 图文视频 (aweme_type=68): play_addr 通常返回 BGM 的 MP3，不是视频本身。 # 此时没有可用视频直链，返回 (None, desc) 让调用方仅使用文案。 images = item.get("images") or [] if images and not video.get("play_addr_h264", {}).get("url_list"): logger.info( "Feed API 返回图文视频: aweme_id=%s images=%d desc_len=%d（无视频直链，返回文案）", aweme_id, len(images), len(desc), ) return None, desc # 提取无水印直链：优先 download_addr（含 logo 但 CDN 直链稳定），再 play_addr_h264/play_addr play_url = None # 按 key 优先级遍历：download_addr（含水印但CDN直链稳定）→ play_addr_h264 → play_addr → play_addr_lowbr addr_keys = ("download_addr", "play_addr_h264", "play_addr", "play_addr_lowbr", "play_addr_265") for addr_key in addr_keys: addr = video.get(addr_key) or {} url_list = addr.get("url_list") or [] # 注意：图文视频的 play_addr 里可能是 BGM MP3 而非视频，需过滤 .mp3 filtered = [u for u in url_list if isinstance(u, str) and not u.endswith(".mp3")] picked = _pick_best_url(filtered) if picked: play_url = picked break # bit_rate 里的多码率地址作为最后兜底 if not play_url: for br_entry in video.get("bit_rate") or []: for addr_key in addr_keys: addr = br_entry.get(addr_key) or {} url_list = addr.get("url_list") or [] filtered = [u for u in url_list if isinstance(u, str) and not u.endswith(".mp3")] picked = _pick_best_url(filtered) if picked: play_url = picked break if play_url: break if play_url: duration = video.get("duration", 0) / 1000 if video.get("duration") else 0 logger.info( "抖音 Feed API 成功（第%d次）: aweme_id=%s play_len=%d desc_len=%d dur=%.1f type=%d", attempt + 1, aweme_id, len(play_url), len(desc), duration, aweme_type, ) return play_url, desc logger.warning("Feed API 第%d次: aweme_detail 有但未找到视频直链", attempt + 1) time.sleep(0.5) except Exception as exc: logger.warning("Feed API 第%d次异常: %s", attempt + 1, exc) time.sleep(0.5 * (attempt + 1)) logger.warning("抖音 Feed API 全部%d次均失败: aweme_id=%s", max_retries, aweme_id) return None, None if __name__ == "__main__": import sys logging.basicConfig(level=logging.INFO) test_url = sys.argv[1] if len(sys.argv) > 1 else "https://www.douyin.com/video/7661819662322649065" url, desc = fetch_douyin_video_url(test_url) if url: print("\n✅ SUCCESS!") print(f"desc: {desc}") print(f"play_url: {url[:200]}") else: print("\n❌ FAILED")