442 lines
17 KiB
Python
442 lines
17 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Main class used by the add-on
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Copyright (C) 2018 Cyrille Bollu
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Copyright (C) 2021 Thomas Bétous
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SPDX-License-Identifier: GPL-3.0-only
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See LICENSE.txt for more information.
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"""
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import AddonSignals # Module exists only in Kodi - pylint: disable=import-error
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from resources.lib.kodi_utils import kodi
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from resources.lib.peertube import PeerTube, list_instances
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class PeerTubeAddon():
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"""
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Main class used by the add-on
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"""
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# URL of the page which explains how to install libtorrent
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HELP_URL = "https://link.infini.fr/libtorrent-peertube-kodi"
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def __init__(self):
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"""Initialize parameters and create a PeerTube instance"""
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# Get the number of items to show per page
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self.items_per_page = int(kodi.get_setting("items_per_page"))
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# Get the preferred resolution for video
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self.preferred_resolution = \
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int(kodi.get_setting("preferred_resolution"))
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# Nothing to play at initialisation
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self.play = False
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self.torrent_name = ""
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self.torrent_file = ""
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# Check whether libtorrent could be imported by the service. The value
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# of the associated property is retrieved only once and stored in an
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# attribute because libtorrent is imported only once at the beginning
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# of the service (we assume it is not possible to start the add-on
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# before the service)
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self.libtorrent_imported = \
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kodi.get_property("libtorrent_imported") == "True"
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# Create a PeerTube object to send requests: settings which are used
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# only by this object are directly retrieved from the settings
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self.peertube = PeerTube(
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instance=kodi.get_setting("preferred_instance"),
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count=self.items_per_page,
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sort=kodi.get_setting("video_sort_method"),
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video_filter=kodi.get_setting("video_filter"))
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def _browse_videos(self, start):
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"""Display the list of all the videos published on a PeerTube instance
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:param int start: index of the first video to display (pagination)
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"""
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# Use the API to get the list of the videos
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results = self.peertube.list_videos(start)
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# Extract the information of each video from the API response
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list_of_videos = self._create_list_of_videos(results, start)
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# Create the associated items in Kodi
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kodi.create_items_in_ui(list_of_videos)
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def _browse_instances(self, start):
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"""
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Function to navigate through all the PeerTube instances
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:param int start: index of the first instance to display (pagination)
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"""
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# Use the API to get the list of the instances
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results = list_instances(start)
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# Extract the information of each instance from the API response
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list_of_instances = self._create_list_of_instances(results, start)
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# Create the associated items in Kodi
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kodi.create_items_in_ui(list_of_instances)
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def _create_list_of_instances(self, response, start):
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"""Generator of instance items to be added in Kodi UI
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:param dict response: data returned by joinpeertube
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:param int start: index of the first item to display (pagination)
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:return: yield the information of each item
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:rtype: dict
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"""
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for data in response["data"]:
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# The description of each instance in Kodi will be composed of:
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# * the description of the instance (from joinpeertube.org)
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# * the number of local videos hosted on this instance
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# * the number of users on this instance
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description = "{}\n\n----------\nNumber of local videos: {}\n"\
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"Number of users: {}".format(
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data["shortDescription"].encode("utf-8"),
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data["totalLocalVideos"],
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data["totalUsers"])
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# The value of "totalLocalVideos" and "totalUsers" are int so they
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# don't need to be encoded.
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instance_info = kodi.generate_item_info(
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name=data["name"],
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url=kodi.build_kodi_url({
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"action": "select_instance",
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"url": data["host"]
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}
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),
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is_folder=True,
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plot=description
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)
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yield instance_info
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else:
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# Add a "Next page" button when there are more items to show
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next_page_item = self._create_next_page_item(
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total=int(response["total"]),
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current_index=start,
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url=kodi.build_kodi_url(
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{
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"action": "browse_instances",
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"start": start + self.items_per_page
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}
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)
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)
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if next_page_item:
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yield next_page_item
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def _create_list_of_videos(self, response, start):
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"""Generator of video items to be added in Kodi UI
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:param dict response: data returned by PeerTube
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:param int start: index of the first item to display (pagination)
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:return: yield the information of each item
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:rtype: dict
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"""
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for data in response["data"]:
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video_info = kodi.generate_item_info(
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name=data["name"],
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url=kodi.build_kodi_url(
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{
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"action": "play_video",
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"id": data["uuid"]
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}
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),
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is_folder=False,
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plot=data["description"],
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duration=data["duration"],
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thumbnail="{0}/{1}".format(self.peertube.instance,
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data["thumbnailPath"]),
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aired=data["publishedAt"]
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)
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yield video_info
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else:
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# Add a "Next page" button when there are more items to show
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next_page_item = self._create_next_page_item(
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total=int(response["total"]),
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current_index=start,
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url=kodi.build_kodi_url(
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{
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"action": "browse_videos",
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"start": start + self.items_per_page
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}
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)
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)
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if next_page_item:
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yield next_page_item
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def _create_next_page_item(self, total, current_index, url):
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"""Return the info required to create an item to go to the next page
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:param int total: total number of elements
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:param int current_index: index of the first element currently used
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:param str url: URL to reach when the "Next page" item is run
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:return: yield the info to create a "Next page" item in Kodi UI if
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there are more items to show
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:rtype: dict
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"""
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next_index = current_index + self.items_per_page
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if total > next_index:
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next_page = (next_index / self.items_per_page) + 1
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total_pages = (total / self.items_per_page) + 1
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next_page_item = kodi.generate_item_info(
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name="Next page ({}/{})".format(next_page, total_pages),
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url=url
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)
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return next_page_item
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def _get_video_url(self, video_id, instance=None):
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"""Find the URL of the video with the best possible quality matching
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user's preferences.
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:param str video_id: ID of the torrent linked with the video
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:param str instance: PeerTube instance hosting the video (optional)
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:return: URL of the video containing the resolution
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:rtype: str
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"""
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# Retrieve the information about the video including the different
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# resolutions available
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video_files = self.peertube.get_video_urls(video_id, instance=instance)
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# Find the best resolution matching user's preferences
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current_resolution = 0
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higher_resolution = -1
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url = ""
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for video in video_files:
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# Get the resolution
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resolution = video["resolution"]
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if resolution == self.preferred_resolution:
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# Stop directly when we find the exact same resolution as the
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# user's preferred one
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kodi.debug("Found video with preferred resolution ({})"
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.format(self.preferred_resolution))
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url = video["url"]
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break
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elif (resolution < self.preferred_resolution
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and resolution > current_resolution):
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# Otherwise, try to find the best one just below the user's
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# preferred one
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kodi.debug("Found video with good lower resolution ({})"
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.format(resolution))
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url = video["url"]
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current_resolution = resolution
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elif (resolution > self.preferred_resolution and
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(resolution < higher_resolution or
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higher_resolution == -1)):
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# In the worst case, we'll take the one just above the user's
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# preferred one
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kodi.debug("Saving video with higher resolution ({}) as a"
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" possible alternative".format(resolution))
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backup_url = video["url"]
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higher_resolution = resolution
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else:
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kodi.debug("Ignoring the resolution '{}'".format(resolution))
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# When we didn't find a resolution equal or lower than the user's
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# preferred one, use the resolution just above the preferred one
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if not url:
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kodi.debug("Using video with higher resolution as alternative ({})"
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.format(higher_resolution))
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url = backup_url
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return url
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def _home_page(self):
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"""Display the items of the home page of the add-on"""
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home_page_items = [
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kodi.generate_item_info(
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name="Browse videos on the selected instance",
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url=kodi.build_kodi_url({"action": "browse_videos","start": 0})
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),
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kodi.generate_item_info(
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name="Search videos on the selected instance",
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url=kodi.build_kodi_url({"action": "search_videos","start": 0})
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),
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kodi.generate_item_info(
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name="Browse videos on the selected instance",
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url=kodi.build_kodi_url({
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"action": "browse_instances",
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"start": 0
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}
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)
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)
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]
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kodi.create_items_in_ui(home_page_items)
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def _search_videos(self, start):
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"""
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Function to search for videos on a PeerTube instance
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:param str start: index of the first video to display (pagination)
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"""
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# Ask the user which keywords must be searched for
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keywords = kodi.open_input_box(
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title="Search videos on {}".format(self.peertube.instance))
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# Go back to the home page when the user cancels or didn't enter any
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# string
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if not keywords:
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return
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# Use the API to search for videos
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results = self.peertube.search_videos(keywords, start)
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# Exit directly when no result is found
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if not results:
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kodi.notif_warning(
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title="No videos found",
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message="No videos found matching the keywords.")
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return
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# Extract the information of each video from the API response
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list_of_videos = self._create_list_of_videos(results, start)
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# Create the associated items in Kodi
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kodi.create_items_in_ui(list_of_videos)
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def _play_video(self, torrent_url):
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"""
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Start the torrent's download and play it while being downloaded
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:param str torrent_url: URL of the torrent file to download and play
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"""
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# If libtorrent could not be imported, display a message and do not try
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# download nor play the video as it will fail.
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if not self.libtorrent_imported:
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kodi.open_dialog(
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title="Error: libtorrent could not be imported",
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message="PeerTube cannot play videos without libtorrent\n"
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"Please follow the instructions at {}"
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.format(self.HELP_URL))
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return
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kodi.debug("Starting torrent download ({})".format(torrent_url))
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kodi.notif_info(title="Download started",
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message="The video will be played soon.")
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# Start a downloader thread
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AddonSignals.sendSignal("start_download", {"url": torrent_url})
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# Wait until the PeerTubeDownloader has downloaded all the torrent's
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# metadata
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AddonSignals.registerSlot(kodi.addon_id,
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"metadata_downloaded",
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self._play_video_continue)
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timeout = 0
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while not self.play and timeout < 10:
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kodi.sleep(1000)
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timeout += 1
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# Abort in case of timeout
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if timeout == 10:
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kodi.notif_error(
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title="Download timeout",
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message="Timeout fetching {}".format(torrent_url))
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return
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else:
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# Wait a little before starting playing the torrent
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kodi.sleep(3000)
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# Pass the item to the Kodi player for actual playback.
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kodi.debug("Starting video playback ({})".format(self.torrent_file))
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kodi.play(self.torrent_file)
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def _play_video_continue(self, data):
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"""
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Callback function to let the _play_video method resume when the
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PeertubeDownloader has downloaded all the torrent's metadata
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:param data: dict of information sent from PeertubeDownloader
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"""
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kodi.debug(
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"Received metadata_downloaded signal, will start playing media")
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self.play = True
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self.torrent_file = data["file"]
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def _select_instance(self, instance):
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"""
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Change currently selected instance to "instance" parameter
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:param str instance: URL of the new instance
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"""
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# Update the PeerTube object attribute even though it is not used
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# currently (because the value will be retrieved from the settings on
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# the next run of the add-on but it may be useful in case
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# reuselanguageinvoker is enabled)
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self.peertube.set_instance(instance)
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# Update the preferred instance in the settings so that this choice is
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# reused on the next runs and the next calls of the add-on
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kodi.set_setting("preferred_instance", instance)
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# Notify the user and log the event
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message = \
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"{} is now the selected instance".format(self.peertube.instance)
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kodi.notif_info(title="Current instance changed", message=message)
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kodi.debug(message)
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def router(self, params):
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"""Route the add-on to the requested actions
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:param dict params: Parameters the add-on was called with
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"""
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# Check the parameters passed to the plugin
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if params:
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action = params["action"]
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if action == "browse_videos":
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# Browse videos on the selected instance
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self._browse_videos(int(params["start"]))
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elif action == "search_videos":
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# Search for videos on the selected instance
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self._search_videos(int(params["start"]))
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elif action == "browse_instances":
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# Browse PeerTube instances
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self._browse_instances(int(params["start"]))
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elif action == "play_video":
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# This action comes with the id of the video to play as
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# parameter. The instance may also be in the parameters. Use
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# these parameters to retrieve the complete URL (containing the
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# resolution).
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url = self._get_video_url(instance=params.get("instance"),
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video_id=params.get("id"))
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# Play the video using the URL
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self._play_video(url)
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elif action == "select_instance":
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# Set the selected instance as the preferred instance
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self._select_instance(params["url"])
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else:
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# Display the addon's main menu when the plugin is called from
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# Kodi UI without any parameters
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self._home_page()
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# Display a warning if libtorrent could not be imported
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if not self.libtorrent_imported:
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kodi.open_dialog(
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title="Error: libtorrent could not be imported",
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message="You can still browse and search videos but you"
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" will not be able to play them.\n"
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"Please follow the instructions at {}"
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.format(self.HELP_URL))
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