epicyon/video.py

223 lines
8.4 KiB
Python

__filename__ = "video.py"
__author__ = "Bob Mottram"
__license__ = "AGPL3+"
__version__ = "1.5.0"
__maintainer__ = "Bob Mottram"
__email__ = "bob@libreserver.org"
__status__ = "Production"
__module_group__ = "Timeline"
from utils import get_url_from_post
from utils import remove_html
from utils import get_full_domain
from utils import get_nickname_from_actor
from utils import get_domain_from_actor
from utils import remove_id_ending
from utils import get_attributed_to
from utils import get_content_from_post
from utils import dangerous_markup
from utils import license_link_from_name
from utils import get_media_url_from_video
from utils import resembles_url
from blocking import is_blocked
from filters import is_filtered
def convert_video_to_note(base_dir: str, nickname: str, domain: str,
system_language: str,
post_json_object: {}, blocked_cache: {},
languages_understood: []) -> {}:
"""Converts a PeerTube Video ActivityPub(ish) object into
a Note, so that it can then be displayed in a timeline
https://docs.joinpeertube.org/api/activitypub#video
"""
# check that the required fields are present
required_fields = (
'type', '@context', 'id', 'published', 'to', 'cc',
'attributedTo', 'commentsEnabled', 'content', 'sensitive',
'name', 'url'
)
for field_name in required_fields:
if not post_json_object.get(field_name):
return None
if post_json_object['type'] != 'Video':
return None
# who is this attributed to ?
attributed_to = None
if isinstance(post_json_object['attributedTo'], str):
attributed_to = get_attributed_to(post_json_object['attributedTo'])
if not attributed_to:
return None
# get the language of the video
post_language = system_language
if post_json_object.get('language'):
if isinstance(post_json_object['language'], dict):
if post_json_object['language'].get('identifier'):
post_language = post_json_object['language']['identifier']
# check that the attributed actor is not blocked
post_nickname = get_nickname_from_actor(attributed_to)
if not post_nickname:
return None
post_domain, post_domain_port = get_domain_from_actor(attributed_to)
if not post_domain:
return None
post_domain_full = get_full_domain(post_domain, post_domain_port)
if is_blocked(base_dir, nickname, domain,
post_nickname, post_domain_full, blocked_cache):
return None
# check that the content is valid
if is_filtered(base_dir, nickname, domain, post_json_object['name'],
system_language):
return None
if is_filtered(base_dir, nickname, domain, post_json_object['content'],
system_language):
return None
# get the content
content = '<p><b>' + post_json_object['name'] + '</b></p>'
if post_json_object.get('license'):
if isinstance(post_json_object['license'], dict):
if post_json_object['license'].get('name'):
if is_filtered(base_dir, nickname, domain,
post_json_object['license']['name'],
system_language):
return None
content += '<p>' + post_json_object['license']['name'] + '</p>'
content += \
get_content_from_post(post_json_object, system_language,
languages_understood, "content")
conversation_id = remove_id_ending(post_json_object['id'])
media_type, media_url, media_torrent, media_magnet = \
get_media_url_from_video(post_json_object)
if not media_url:
return None
attachment = [{
'mediaType': media_type,
'name': post_json_object['content'],
'type': 'Document',
'url': media_url
}]
if media_torrent or media_magnet:
content += '<p>'
if media_torrent:
content += '<a href="' + media_torrent + '">⇓</a> '
if media_magnet:
content += '<a href="' + media_magnet + '">🧲</a>'
content += '</p>'
new_post_id2 = remove_html(post_json_object['id'])
new_post_id = remove_id_ending(new_post_id2)
new_post = {
'@context': post_json_object['@context'],
'id': new_post_id + '/activity',
'type': 'Create',
'actor': attributed_to,
'published': post_json_object['published'],
'to': post_json_object['to'],
'cc': post_json_object['cc'],
'object': {
'id': new_post_id,
'conversation': conversation_id,
'context': conversation_id,
'type': 'Note',
'summary': None,
'inReplyTo': None,
'published': post_json_object['published'],
'url': new_post_id,
'attributedTo': attributed_to,
'to': post_json_object['to'],
'cc': post_json_object['cc'],
'sensitive': post_json_object['sensitive'],
'atomUri': new_post_id,
'inReplyToAtomUri': None,
'commentsEnabled': post_json_object['commentsEnabled'],
'rejectReplies': not post_json_object['commentsEnabled'],
'mediaType': 'text/html',
'content': content,
'contentMap': {
post_language: content
},
'attachment': attachment,
'tag': [],
'replies': {
'id': new_post_id + '/replies',
'type': 'Collection',
'first': {
'type': 'CollectionPage',
'partOf': new_post_id + '/replies',
'items': []
}
}
}
}
if post_json_object.get('support'):
support_str = post_json_object['support']
if isinstance(support_str, str):
if not dangerous_markup(support_str, False, []):
if not is_filtered(base_dir, nickname, domain, support_str,
system_language):
new_post['object']['support'] = support_str
# if this is a link
if resembles_url(support_str):
# add a buy link
new_post['object']['attachment'].append({
'type': 'Link',
'mediaType': 'text/html',
'href': support_str,
'rel': 'support',
'name': 'Support'
})
if post_json_object.get('license'):
if isinstance(post_json_object['license'], dict):
if post_json_object['license'].get('name'):
if isinstance(post_json_object['license']['name'], str):
license_str = post_json_object['license']['name']
content_license_url = \
license_link_from_name(license_str)
if content_license_url:
new_post['object']['attachment'].append({
"type": "PropertyValue",
"name": "license",
"value": content_license_url
})
if post_json_object.get('subtitleLanguage'):
if isinstance(post_json_object['subtitleLanguage'], list):
for lang in post_json_object['subtitleLanguage']:
if not isinstance(lang, dict):
continue
if not lang.get('identifier'):
continue
if not isinstance(lang['identifier'], str):
continue
if not lang.get('url'):
continue
url_str = get_url_from_post(lang['url'])
if not url_str:
continue
if not url_str.endswith('.vtt'):
continue
for understood in languages_understood:
if understood in lang['identifier']:
new_post['object']['attachment'].append({
"type": "Document",
"name": understood,
"mediaType": "text/vtt",
"url": url_str
})
break
return new_post