Refactored torrent module
This commit is contained in:
Fabio Manganiello
parent
a4f80d4622
commit
286eb431f0
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@ -46,15 +46,6 @@ class TorrentStateChangeEvent(TorrentEvent):
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super().__init__(*args, **kwargs)
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class TorrentStateChangeEvent(TorrentEvent):
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"""
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Event triggered upon torrent state change
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"""
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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class TorrentDownloadCompletedEvent(TorrentEvent):
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"""
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Event triggered upon torrent state change
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@ -74,4 +65,3 @@ class TorrentDownloadStopEvent(TorrentEvent):
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# vim:sw=4:ts=4:et:
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@ -155,7 +155,7 @@ class MediaMplayerPlugin(MediaPlugin):
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self._init_mplayer(mplayer_args)
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else:
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if not self._mplayer:
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raise RuntimeError('MPlayer is not running')
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self.logger.warning('MPlayer is not running')
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cmd = '{}{}{}{}\n'.format(
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prefix + ' ' if prefix else '',
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@ -249,8 +249,7 @@ class MediaMplayerPlugin(MediaPlugin):
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if resource.startswith('file://'):
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resource = resource[7:]
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elif resource.startswith('magnet:?'):
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torrent_plugin = get_plugin('media.webtorrent')
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return torrent_plugin.play(resource)
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return get_plugin('media.webtorrent').play(resource)
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return self._exec('loadfile', resource, mplayer_args=mplayer_args)
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@ -1,14 +1,17 @@
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import datetime
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import os
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import select
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import subprocess
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import tempfile
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import threading
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import time
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from platypush.config import Config
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from platypush.context import get_bus, get_plugin
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from platypush.message.response import Response
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from platypush.plugins.media import PlayerState, MediaPlugin
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from platypush.message.event.media import MediaPlayEvent, MediaPauseEvent, \
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MediaStopEvent, NewPlayingMediaEvent
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from platypush.message.event.torrent import TorrentDownloadStartEvent, \
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TorrentDownloadCompletedEvent
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from platypush.plugins import action
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from platypush.utils import find_bins_in_path
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@ -26,39 +29,19 @@ class MediaWebtorrentPlugin(MediaPlugin):
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``npm install -g BlackLight/webtorrent-cli`` as my fork contains
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the ``--[player]-args`` options to pass custom arguments to your
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installed player)
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* A media plugin configured for streaming (e.g. media.mplayer
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or media.omxplayer)
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"""
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_supported_media_plugins = { 'media.mplayer', 'media.omxplayer' }
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_supported_webtorrent_players = {'airplay', 'chromecast', 'mplayer',
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'mpv', 'omxplayer', 'vlc', 'xbmc'}
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# Download at least 10 MBs before starting streaming
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_download_size_before_streaming = 10 * 2**20
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def __init__(self, player_type=None, player_args=None, webtorrent_bin=None,
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*args, **kwargs):
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def __init__(self, webtorrent_bin=None, *args, **kwargs):
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"""
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Create the webtorrent wrapper
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:param player_type: Player type to be used for streaming. Check
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https://www.npmjs.com/package/webtorrent for a full list of the
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supported players. If no player is specified then it will search in
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your Platypush configuration for any enabled and supported media
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plugin (either ``media.mplayer`` or ``media.omxplayer``) to
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configure the streaming player. Currently supported options:
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- airplay
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- chromecast
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- mplayer
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- mpv
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- omxlayer
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- vlc
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- xbmc
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:type player_type: str
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:param player_args: Extra arguments to pass to the player as a list.
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For mplayer, vlc, omxplayer and mpv this will be a list of extra
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arguments to be passed to the executable (e.g. fullscreen, volume,
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audio sink etc.).
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:type player_args: list[str]
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media.webtorrent will use the default media player plugin you have
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configured (e.g. mplayer, omxplayer) to stream the torrent.
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:param webtorrent_bin: Path to your webtorrent executable. If not set,
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then Platypush will search for the right executable in your PATH
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@ -68,11 +51,12 @@ class MediaWebtorrentPlugin(MediaPlugin):
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super().__init__(*args, **kwargs)
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self._init_webtorrent_bin(webtorrent_bin=webtorrent_bin)
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self._init_media_player(player_type=player_type,
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player_args=player_args or [])
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self._init_media_player()
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def _init_webtorrent_bin(self, webtorrent_bin=None):
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self._webtorrent_process = None
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if not webtorrent_bin:
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bin_name = 'webtorrent.exe' if os.name == 'nt' else 'webtorrent'
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bins = find_bins_in_path(bin_name)
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@ -94,89 +78,59 @@ class MediaWebtorrentPlugin(MediaPlugin):
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self.webtorrent_bin = webtorrent_bin
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def _init_media_player(self, player_type, player_args):
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if player_type is None:
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media_plugin = None
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plugin_name = None
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def _init_media_player(self):
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self._media_plugin = None
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plugin_name = None
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for plugin_name in self._supported_media_plugins:
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try:
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media_plugin = get_plugin(plugin_name)
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for plugin_name in self._supported_media_plugins:
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try:
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if Config.get(plugin_name):
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self._media_plugin = get_plugin(plugin_name)
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break
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except:
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pass
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if not media_plugin:
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raise RuntimeError(('No media player specified and no ' +
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'compatible media plugin configured - ' +
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'supported media plugins: {}').format(
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self._supported_media_plugins))
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self.player_type = plugin_name[len('media.'):]
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self.player_args = media_plugin.args
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else:
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if player_type not in self._supported_webtorrent_players:
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raise RuntimeError(('{} is not a supported player (supported ' +
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'players: {})').format(
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player_type,
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self._supported_webtorrent_players))
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self.player_type = player_type
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self.player_args = player_args or []
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if not self.player_args:
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try:
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plugin = get_plugin('media.' + player_type)
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self.player_args = plugin.args
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except:
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pass
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self._player = None
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def _start_webtorrent(self, resource):
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if self._player:
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try:
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self.quit()
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except:
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self.logger.debug('Failed to quit the previous instance: {}'.
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format(str))
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webtorrent_args = [self.webtorrent_bin, '--' + self.player_type,
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resource]
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if self.player_args:
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webtorrent_args += ['--' + self.player_type + "-args='" + \
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repr(' '.join(self.player_args)) + "'"]
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popen_args = {
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'stdin': subprocess.PIPE,
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'stdout': subprocess.PIPE,
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}
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if self._env:
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popen_args['env'] = self._env
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else:
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try:
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plugin = get_plugin('media.' + player_type)
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if plugin._env:
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popen_args['env'] = plugin._env
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except:
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pass
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self._player = subprocess.Popen(webtorrent_args, **popen_args)
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if not self._media_plugin:
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raise RuntimeError(('No media player specified and no ' +
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'compatible media plugin configured - ' +
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'supported media plugins: {}').format(
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self._supported_media_plugins))
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def _process_monitor(self):
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def _process_monitor(self, resource, output_file):
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def _thread():
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if not self._player:
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if not self._webtorrent_process:
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return
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self._player.wait()
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get_bus().post(MediaStopEvent())
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self._player = None
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bus = get_bus()
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bus.post(TorrentDownloadStartEvent(resource=resource))
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while True:
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try:
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if os.path.getsize(output_file) > \
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self._download_size_before_streaming:
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break
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except FileNotFoundError:
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pass
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self._media_plugin.play(output_file)
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self._webtorrent_process.wait()
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bus.post(TorrentDownloadCompletedEvent(resource=resource))
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self._webtorrent_process = None
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return _thread
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def _get_torrent_download_path(self):
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if self._media_plugin.download_dir:
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# TODO set proper file name based on the torrent metadata
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return os.path.join(self._media_plugin.download_dir,
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'torrent_media_' + datetime.datetime.
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today().strftime('%Y-%m-%d_%H-%M-%S-%f'))
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else:
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return tempfile.NamedTemporaryFile(delete=False).name
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@action
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def play(self, resource):
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"""
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@ -187,10 +141,25 @@ class MediaWebtorrentPlugin(MediaPlugin):
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:type resource: str
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"""
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self._start_webtorrent(resource)
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bus = get_bus()
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bus.post(NewPlayingMediaEvent(resource=resource))
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threading.Thread(target=self._process_monitor()).start()
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if self._webtorrent_process:
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try:
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self.quit()
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except:
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self.logger.debug('Failed to quit the previous instance: {}'.
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format(str))
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output_file = self._get_torrent_download_path()
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webtorrent_args = [self.webtorrent_bin, '--stdout', resource]
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with open(output_file, 'w') as f:
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self._webtorrent_process = subprocess.Popen(webtorrent_args,
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stdout=f)
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threading.Thread(target=self._process_monitor(
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resource=resource, output_file=output_file)).start()
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return { 'resource': resource }
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@action
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def stop(self):
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@ -200,14 +169,18 @@ class MediaWebtorrentPlugin(MediaPlugin):
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@action
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def quit(self):
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""" Quit the player """
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if self._player and self._is_process_alive(self._player.pid):
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self._player.terminate()
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self._player.wait()
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try: self._player.kill()
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if self._media_plugin:
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self._media_plugin.quit()
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if self._webtorrent_process and self._is_process_alive(
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self._webtorrent_process.pid):
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self._webtorrent_process.terminate()
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self._webtorrent_process.wait()
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try: self._webtorrent_process.kill()
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except: pass
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bus.post(MediaStopEvent())
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self._player = None
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self._webtorrent_process = None
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@action
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def load(self, resource):
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@ -217,14 +190,14 @@ class MediaWebtorrentPlugin(MediaPlugin):
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return self.play(resource)
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def _is_process_alive(self):
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if not self._player:
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if not self._webtorrent_process:
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return False
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try:
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os.kill(self._player.pid, 0)
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os.kill(self._webtorrent_process.pid, 0)
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return True
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except OSError:
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self._player = None
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self._webtorrent_process = None
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return False
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@action
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@ -241,9 +214,8 @@ class MediaWebtorrentPlugin(MediaPlugin):
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}
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"""
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return {'state': PlayerState.PLAY.value
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if self._player and self._is_process_alive()
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else PlayerState.STOP.value}
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return {'state': self._media_plugin.status()
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.get('state', PlayerState.STOP.value)}
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# vim:sw=4:ts=4:et:
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