From 99745830384a1602897068d2c08ff5119039527f Mon Sep 17 00:00:00 2001
From: Fabio Manganiello <blacklight86@gmail.com>
Date: Mon, 22 Oct 2018 14:52:32 +0000
Subject: [PATCH] Added torrent plugin

---
 platypush/message/event/torrent.py |  68 +++++++++
 platypush/plugins/torrent.py       | 234 +++++++++++++++++++++++++++++
 2 files changed, 302 insertions(+)
 create mode 100644 platypush/message/event/torrent.py
 create mode 100644 platypush/plugins/torrent.py

diff --git a/platypush/message/event/torrent.py b/platypush/message/event/torrent.py
new file mode 100644
index 000000000..fde0aa4be
--- /dev/null
+++ b/platypush/message/event/torrent.py
@@ -0,0 +1,68 @@
+from platypush.message.event import Event
+
+
+class TorrentEvent(Event):
+    """
+    Base class for torrent events
+    """
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+class TorrentDownloadStartEvent(TorrentEvent):
+    """
+    Event triggered upon torrent download start
+    """
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+class TorrentSeedingStartEvent(TorrentEvent):
+    """
+    Event triggered upon torrent seeding start
+    """
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+class TorrentDownloadProgressEvent(TorrentEvent):
+    """
+    Event triggered upon torrent download progress
+    """
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+class TorrentStateChangeEvent(TorrentEvent):
+    """
+    Event triggered upon torrent state change
+    """
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+class TorrentStateChangeEvent(TorrentEvent):
+    """
+    Event triggered upon torrent state change
+    """
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+class TorrentDownloadCompletedEvent(TorrentEvent):
+    """
+    Event triggered upon torrent state change
+    """
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+# vim:sw=4:ts=4:et:
+
diff --git a/platypush/plugins/torrent.py b/platypush/plugins/torrent.py
new file mode 100644
index 000000000..c39c37e75
--- /dev/null
+++ b/platypush/plugins/torrent.py
@@ -0,0 +1,234 @@
+import json
+import os
+import random
+import time
+
+import urllib.request
+import urllib.parse
+
+from platypush.context import get_bus
+from platypush.plugins import Plugin, action
+from platypush.message.event.torrent import \
+    TorrentDownloadStartEvent, TorrentSeedingStartEvent, \
+    TorrentStateChangeEvent, TorrentDownloadProgressEvent, \
+    TorrentDownloadCompletedEvent
+
+
+class TorrentPlugin(Plugin):
+    """
+    Plugin to control video and media playback on your Raspberry Pi or
+    ARM-compatible device using OMXPlayer.
+
+    It can play local files, remote URLs, YouTube URLs and it supports torrents
+    search, download and play.
+
+    Requires:
+
+        * **python-libtorrent** (``pip install python-libtorrent``)
+        * **requests** (``pip install requests``) [optional] for torrent info URL download
+    """
+
+    default_torrent_ports = [6881, 6891]
+    torrent_state = {}
+
+    def __init__(self, download_dir=None, torrent_ports=[], *argv, **kwargs):
+        """
+        :param download_dir: Directory where the videos/torrents will be downloaded (default: none)
+        :type download_dir: str
+
+        :param torrent_ports: Torrent ports to listen on (default: 6881 and 6891)
+        :type torrent_ports: list[int]
+        """
+
+        super().__init__(*argv, **kwargs)
+
+        self.torrent_ports = torrent_ports if torrent_ports else self.default_torrent_ports
+        self.download_dir = None
+
+        if download_dir:
+            self.download_dir = os.path.abspath(os.path.expanduser(download_dir))
+
+    @action
+    def search(self, query, types=None, queue_results=False, autoplay=False):
+        """
+        Perform a video search.
+
+        :param query: Query string, video name or partial name
+        :type query: str
+
+        :param types: Video types to search (default: ``["youtube", "file", "torrent"]``)
+        :type types: list
+
+        :param queue_results: Append the results to the current playing queue (default: False)
+        :type queue_results: bool
+
+        :param autoplay: Play the first result of the search (default: False)
+        :type autoplay: bool
+        """
+
+        self.logger.info('Searching matching torrents for "{}"'.format(query))
+        request = urllib.request.urlopen(urllib.request.Request(
+            'https://api.apidomain.info/list?' + urllib.parse.urlencode({
+                'sort': 'relevance',
+                'quality': '720p,1080p,3d',
+                'page': 1,
+                'keywords': query,
+            }),
+            headers = {
+                'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 ' +
+                    '(KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36'
+            })
+        )
+
+        response = request.read()
+        if isinstance(response, bytes):
+            response = response.decode('utf-8')
+
+        return [
+            {
+                'url': _['items'][0]['torrent_magnet'],
+                'title': _['title'],
+            }
+
+            for _ in json.loads(response).get('MovieList', [])
+        ]
+
+    @action
+    def download(self, torrent, download_dir=None):
+        """
+        Download a torrent.
+
+        :param torrent: Torrent to download. Supported formats:
+
+            * Magnet URLs
+            * Torrent URLs
+            * Local torrent file
+
+        :type resource: str
+
+        :param download_dir: Directory to download, overrides the default download_dir attribute (default: None)
+        :type download_dir: str
+        """
+
+        import libtorrent as lt
+
+        if not download_dir:
+            if self.download_dir:
+                download_dir = self.download_dir
+            else:
+                raise RuntimeError('download_dir not specified')
+
+        os.makedirs(download_dir, exist_ok=True)
+        info = {}
+        torrent_file = None
+        magnet = None
+        bus = get_bus()
+
+        if torrent.startswith('magnet:?'):
+            magnet = torrent
+            info = lt.parse_magnet_uri(magnet)
+        elif torrent.startswith('http://') or torrent.startswith('https://'):
+            import requests
+            response = requests.get(torrent, allow_redirects=True)
+            torrent_file = os.path.join(os.path.expanduser(download_dir),
+                                        self._generate_rand_filename())
+
+            with open(torrent_file, 'wb') as f:
+                f.write(response.content)
+        else:
+            torrent_file = os.path.expanduser(torrent)
+
+        if torrent_file:
+            file_info = lt.torrent_info(torrent_file)
+            info = {
+                'name': file_info.name(),
+                'url': torrent,
+                'trackers': [t.url for t in list(file_info.trackers())],
+                'save_path': download_dir,
+            }
+
+        ses = lt.session()
+        ses.listen_on(*self.torrent_ports)
+
+        self.logger.info('Downloading "{}" to "{}" from [{}]'
+                     .format(info['name'], self.download_dir, torrent))
+
+        params = {
+            'save_path': download_dir,
+            'storage_mode': lt.storage_mode_t.storage_mode_sparse,
+        }
+
+        if magnet:
+            transfer = lt.add_magnet_uri(ses, magnet, params)
+        elif torrent_file:
+            params['ti'] = file_info
+            transfer = ses.add_torrent(params)
+
+        status = transfer.status()
+        files = []
+
+        self.torrent_state = {
+            'url': info['url'] or magnet or torrent_file,
+            'title': info['name'],
+            'trackers': info['trackers'],
+            'save_path': info['save_path'],
+        }
+
+        bus.post(TorrentDownloadStartEvent(**self.torrent_state))
+        last_status = None
+
+        while (not status.is_seeding):
+            if not last_status:
+                bus.post(TorrentSeedingStartEvent(**self.torrent_state))
+
+            status = transfer.status()
+            torrent_file = transfer.torrent_file()
+            if torrent_file:
+                files = [os.path.join(
+                            self.download_dir,
+                            torrent_file.files().file_path(i))
+                    for i in range(0, torrent_file.files().num_files())
+                ]
+
+            self.torrent_state['progress'] = 100 * status.progress
+            self.torrent_state['download_rate'] = status.download_rate
+            self.torrent_state['upload_rate'] = status.upload_rate
+            self.torrent_state['num_peers'] = status.num_peers
+            self.torrent_state['state'] = status.state
+
+            if last_status and status.progress != last_status.progress:
+                bus.post(TorrentDownloadProgressEvent(**self.torrent_state))
+
+            if not last_status or status.state != last_status.state:
+                bus.post(TorrentStateChangeEvent(**self.torrent_state))
+
+            self.logger.info(('Torrent download: {:.2f}% complete (down: {:.1f} kb/s ' +
+                         'up: {:.1f} kB/s peers: {} state: {})')
+                         .format(status.progress * 100,
+                                 status.download_rate / 1000,
+                                 status.upload_rate / 1000,
+                                 status.num_peers, status.state))
+
+            last_status = status
+            time.sleep(5)
+
+        if torrent_file:
+            try: os.unlink(torrent_file)
+            except: pass
+
+        bus.post(TorrentStateChangeEvent(**self.torrent_state, files=files))
+        return files
+
+
+    @action
+    def get_status(self):
+        return self.torrent_state
+
+    def _generate_rand_filename(self, length=16):
+        name = ''
+        for i in range(0, length):
+            name += hex(random.randint(0, 15))[2:].upper()
+        return name + '.torrent'
+
+# vim:sw=4:ts=4:et:
+