[extractor/JdItemVideo] Add Extractor. To extract the video links from a JD.com product page

yt_dlp/extractor/jditemvideo.py

@@ -0,0 +1,98 @@
+# -*- coding: utf-8 -*-
+import json
+import random
+import time
+
+from .common import InfoExtractor
+from ..utils import determine_ext
+
+
+class JdItemVideoIE(InfoExtractor):
+    _VALID_URL = r"https://.+.jd.[a-z\.]{2,9}/(?P<id>\d{6,16}).html"
+
+    IE_NAME = 'jd-video'
+    IE_DESC = 'jd-video extractor'
+    _NETRC_MACHINE = False
+
+    _JD_API_VIDEO_CALLBACK_URL = 'https://cd.jd.com/tencent/video_v3?callback=jQuery{rand}&vid={video_id}&type=1&from=1&appid=24&_={timestamp}'
+
+    _TESTS = [
+        {
+            'url': 'https://npcitem.jd.hk/100030101538.html',
+            'info_dict': {
+                "id": "100030101538",
+                "ext": "mp4",
+                "title": "ipad 2021第九代",
+                "description": "【AppleiPad】Apple苹果 iPad 第9代 10.2英寸平板电脑 2021款 ipad9（64GB WLAN版/A13芯片/1200万像素/iPadOS）深空灰色【行情 报价 价格 评测】-京东",
+                "size": 10251794,
+                "width": 1280,
+                "height": 1280,
+                "duration": 56,
+                "thumbnail": "https://jvod.300hu.com/img/2022/130871763/1/img7.jpg",
+                "url": "https://jvod.300hu.com/vod/product/6e02e2d8-98bc-491d-80a1-448ae5ea1c38/c6ef7b9b14ef4b9ca7e4cebda5b7684c.mp4?source=2&h265=h265/18799/a797504bd6f947dfbf6fdb96acfbb55f.mp4",
+            },
+        },
+        {
+            'url': 'https://npcitem.jd.hk/100030101538.html',
+            'info_dict': {
+                "id": "100037516759",
+                "ext": "mp4",
+                "title": "RODE Wireless Go II Dual",
+                "description": "【RODEWireless Go II Dual】罗德（RODE）Wireless Go II Dual无线领夹麦克风单反手机无线小蜜蜂采访直播vlog收音 一拖二2代 标配【行情 报价 价格 评测】-京东",
+                "size": 7547769,
+                "width": 1280,
+                "height": 720,
+                "duration": 60,
+                "thumbnail": "https://jvod.300hu.com/img/2022/219535842/1/img7.jpg",
+                "url": "https://jvod.300hu.com/vod/product/1fc0661d-546e-446e-a429-a8db696ab06a/4067f4c3bb2d41c5af84081d2b0e3018.mp4?source=2&h265=h265/113074/cf365c28ca3a4fdb8178c4e44f916341.mp4",
+            },
+        },
+    ]
+
+    def _real_extract(self, url):
+
+        item_id = self._match_id(url=url)
+        resp = self._download_webpage(url_or_request=url, video_id=item_id)
+        pattern_data = self._html_search_regex(pattern=r'"mainVideoId":"(\d+?)"', string=resp, name='videoId',
+                                               default=None)
+        if pattern_data is None:
+            raise ValueError(
+                "There are no any video. %s" % url
+            )
+
+
+        description = self._html_extract_title(resp)
+        rand = random.randint(433333, 999999)
+        timestamp = int(time.time() * 1000)
+        url = self._JD_API_VIDEO_CALLBACK_URL.format(rand=rand, timestamp=timestamp, video_id=pattern_data)
+        mp4resp = self._download_webpage(
+            url_or_request=url,
+            video_id=item_id
+        )
+        detailResp = self._html_search_regex(pattern=r'jQuery\d+\((.+)\)', string=mp4resp, name='detail', default=None)
+        if detailResp is None:
+            raise ValueError(
+                "Callback fail. return: %s" % detailResp
+            )
+
+        detailRespJson = json.loads(detailResp)
+        if detailRespJson.get("code", -1) != 0:
+            raise ValueError(
+                "Callback fail. return: %s" % detailResp
+            )
+
+        ext = determine_ext(url=detailRespJson.get("playUrl", ""))
+
+        info_dict = {
+            'id': item_id,
+            'ext': ext,
+            'title': detailRespJson.get("extInfo", {}).get("videoName") or "unknown_video_title",
+            'description': description,
+            'size': detailRespJson.get("extInfo", {}).get("size"),
+            'width': detailRespJson.get("extInfo", {}).get("vwidth"),
+            'height': detailRespJson.get("extInfo", {}).get("vheight"),
+            'duration': detailRespJson.get("duration"),
+            'thumbnail': detailRespJson.get("imageUrl"),
+            'url': detailRespJson.get("playUrl")
+        }
+        return info_dict