[niconico] use HeartBeat

youtube_dl/YoutubeDL.py

@@ -96,6 +96,7 @@ from .extractor import get_info_extractor, gen_extractor_classes, _LAZY_LOADER
 from .extractor.openload import PhantomJSwrapper
 from .downloader import get_suitable_downloader
 from .downloader.rtmp import rtmpdump_version
+from .downloader.httpfd import HttpHB
 from .postprocessor import (
     FFmpegFixupM3u8PP,
     FFmpegFixupM4aPP,
@@ -1839,7 +1840,12 @@ class YoutubeDL(object):
         if not self.params.get('skip_download', False):
             try:
                 def dl(name, info):
-                    fd = get_suitable_downloader(info, self.params)(self, self.params)
+                    if 'heartbeat_url' in info:
+                        print("use HTTPHB")
+                        fd = HttpHB(self, self.params)
+                    else:
+                        fd = get_suitable_downloader(info, self.params)(self, self.params)
+
                     for ph in self._progress_hooks:
                         fd.add_progress_hook(ph)
                     if self.params.get('verbose'):

youtube_dl/downloader/httpfd.py

@@ -0,0 +1,27 @@
+from .http import HttpFD
+
+import urllib.request as compat_urllib_request
+import threading
+
+
+class HttpHB(HttpFD):
+    def real_download(self, filename, info_dict):
+        result = False
+        if 'heartbeat_url'in info_dict:
+            def heart_beat():
+                try:
+                    data = info_dict['heartbeat_data'].encode("utf-8")
+                    compat_urllib_request.urlopen(url=info_dict['heartbeat_url'], data=data)
+                    print('heart beat!')
+                except Exception as ex:
+                    print('heart beat fail: ' + ex.message)
+                    pass
+
+                if not result:
+                    timer = threading.Timer(25, heart_beat)
+                    timer.start()
+
+            heart_beat()
+
+        result = super(HttpHB, self).real_download(filename, info_dict)
+        return result

youtube_dl/extractor/niconico.py

@@ -254,6 +254,10 @@ class NiconicoIE(InfoExtractor):
                 }
             }))
 
+        # get heart-beat data
+        api_url = session_api_endpoint['url'] + '/' + session_response['data']['session']['id'] + '?_format=json&_method=PUT'
+        data = json.dumps(session_response['data'])
+
         resolution = video_quality.get('resolution', {})
 
         return {
@@ -264,6 +268,8 @@ class NiconicoIE(InfoExtractor):
             'vbr': float_or_none(video_quality.get('bitrate'), 1000),
             'height': resolution.get('height'),
             'width': resolution.get('width'),
+            'heartbeat_url': api_url,  # pay attention here
+            'heartbeat_data': data,
         }
 
     def _real_extract(self, url):