From 2415e66f889f38503b73e8ebc5f43ca342390e5c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 15 Apr 2024 18:49:24 +0200
Subject: Adding upstream version 2024.03.10.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 yt_dlp/downloader/niconico.py | 140 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 yt_dlp/downloader/niconico.py

(limited to 'yt_dlp/downloader/niconico.py')

diff --git a/yt_dlp/downloader/niconico.py b/yt_dlp/downloader/niconico.py
new file mode 100644
index 0000000..fef8bff
--- /dev/null
+++ b/yt_dlp/downloader/niconico.py
@@ -0,0 +1,140 @@
+import json
+import threading
+import time
+
+from . import get_suitable_downloader
+from .common import FileDownloader
+from .external import FFmpegFD
+from ..networking import Request
+from ..utils import DownloadError, str_or_none, try_get
+
+
+class NiconicoDmcFD(FileDownloader):
+    """ Downloading niconico douga from DMC with heartbeat """
+
+    def real_download(self, filename, info_dict):
+        from ..extractor.niconico import NiconicoIE
+
+        self.to_screen('[%s] Downloading from DMC' % self.FD_NAME)
+        ie = NiconicoIE(self.ydl)
+        info_dict, heartbeat_info_dict = ie._get_heartbeat_info(info_dict)
+
+        fd = get_suitable_downloader(info_dict, params=self.params)(self.ydl, self.params)
+
+        success = download_complete = False
+        timer = [None]
+        heartbeat_lock = threading.Lock()
+        heartbeat_url = heartbeat_info_dict['url']
+        heartbeat_data = heartbeat_info_dict['data'].encode()
+        heartbeat_interval = heartbeat_info_dict.get('interval', 30)
+
+        request = Request(heartbeat_url, heartbeat_data)
+
+        def heartbeat():
+            try:
+                self.ydl.urlopen(request).read()
+            except Exception:
+                self.to_screen('[%s] Heartbeat failed' % self.FD_NAME)
+
+            with heartbeat_lock:
+                if not download_complete:
+                    timer[0] = threading.Timer(heartbeat_interval, heartbeat)
+                    timer[0].start()
+
+        heartbeat_info_dict['ping']()
+        self.to_screen('[%s] Heartbeat with %d second interval ...' % (self.FD_NAME, heartbeat_interval))
+        try:
+            heartbeat()
+            if type(fd).__name__ == 'HlsFD':
+                info_dict.update(ie._extract_m3u8_formats(info_dict['url'], info_dict['id'])[0])
+            success = fd.real_download(filename, info_dict)
+        finally:
+            if heartbeat_lock:
+                with heartbeat_lock:
+                    timer[0].cancel()
+                    download_complete = True
+        return success
+
+
+class NiconicoLiveFD(FileDownloader):
+    """ Downloads niconico live without being stopped """
+
+    def real_download(self, filename, info_dict):
+        video_id = info_dict['video_id']
+        ws_url = info_dict['url']
+        ws_extractor = info_dict['ws']
+        ws_origin_host = info_dict['origin']
+        live_quality = info_dict.get('live_quality', 'high')
+        live_latency = info_dict.get('live_latency', 'high')
+        dl = FFmpegFD(self.ydl, self.params or {})
+
+        new_info_dict = info_dict.copy()
+        new_info_dict.update({
+            'protocol': 'm3u8',
+        })
+
+        def communicate_ws(reconnect):
+            if reconnect:
+                ws = self.ydl.urlopen(Request(ws_url, headers={'Origin': f'https://{ws_origin_host}'}))
+                if self.ydl.params.get('verbose', False):
+                    self.to_screen('[debug] Sending startWatching request')
+                ws.send(json.dumps({
+                    'type': 'startWatching',
+                    'data': {
+                        'stream': {
+                            'quality': live_quality,
+                            'protocol': 'hls+fmp4',
+                            'latency': live_latency,
+                            'chasePlay': False
+                        },
+                        'room': {
+                            'protocol': 'webSocket',
+                            'commentable': True
+                        },
+                        'reconnect': True,
+                    }
+                }))
+            else:
+                ws = ws_extractor
+            with ws:
+                while True:
+                    recv = ws.recv()
+                    if not recv:
+                        continue
+                    data = json.loads(recv)
+                    if not data or not isinstance(data, dict):
+                        continue
+                    if data.get('type') == 'ping':
+                        # pong back
+                        ws.send(r'{"type":"pong"}')
+                        ws.send(r'{"type":"keepSeat"}')
+                    elif data.get('type') == 'disconnect':
+                        self.write_debug(data)
+                        return True
+                    elif data.get('type') == 'error':
+                        self.write_debug(data)
+                        message = try_get(data, lambda x: x['body']['code'], str) or recv
+                        return DownloadError(message)
+                    elif self.ydl.params.get('verbose', False):
+                        if len(recv) > 100:
+                            recv = recv[:100] + '...'
+                        self.to_screen('[debug] Server said: %s' % recv)
+
+        def ws_main():
+            reconnect = False
+            while True:
+                try:
+                    ret = communicate_ws(reconnect)
+                    if ret is True:
+                        return
+                except BaseException as e:
+                    self.to_screen('[%s] %s: Connection error occured, reconnecting after 10 seconds: %s' % ('niconico:live', video_id, str_or_none(e)))
+                    time.sleep(10)
+                    continue
+                finally:
+                    reconnect = True
+
+        thread = threading.Thread(target=ws_main, daemon=True)
+        thread.start()
+
+        return dl.download(filename, new_info_dict)
-- 
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