microblog.pub/utils/content_helper.py
2018-06-16 22:02:10 +02:00

65 lines
2.2 KiB
Python

import re
import typing
from typing import Any
from typing import Dict
from typing import List
from typing import Optional
from typing import Tuple
from typing import Type
from typing import Union
from bleach.linkifier import Linker
from markdown import markdown
from config import ACTOR_SERVICE
from config import BASE_URL
from config import ID
from config import USERNAME
from utils.webfinger import get_actor_url
def set_attrs(attrs, new=False):
attrs[(None, u'target')] = u'_blank'
attrs[(None, u'class')] = u'external'
attrs[(None, u'rel')] = u'noopener'
attrs[(None, u'title')] = attrs[(None, u'href')]
return attrs
LINKER = Linker(callbacks=[set_attrs])
HASHTAG_REGEX = re.compile(r"(#[\d\w\.]+)")
MENTION_REGEX = re.compile(r"@[\d\w_.+-]+@[\d\w-]+\.[\d\w\-.]+")
def hashtagify(content: str) -> Tuple[str, List[Dict[str, str]]]:
tags = []
for hashtag in re.findall(HASHTAG_REGEX, content):
tag = hashtag[1:]
link = f'<a href="{BASE_URL}/tags/{tag}" class="mention hashtag" rel="tag">#<span>{tag}</span></a>'
tags.append(dict(href=f'{BASE_URL}/tags/{tag}', name=hashtag, type='Hashtag'))
content = content.replace(hashtag, link)
return content, tags
def mentionify(content: str) -> Tuple[str, List[Dict[str, str]]]:
tags = []
for mention in re.findall(MENTION_REGEX, content):
_, username, domain = mention.split('@')
actor_url = get_actor_url(mention)
p = ACTOR_SERVICE.get(actor_url)
print(p)
tags.append(dict(type='Mention', href=p['id'], name=mention))
link = f'<span class="h-card"><a href="{p["url"]}" class="u-url mention">@<span>{username}</span></a></span>'
content = content.replace(mention, link)
return content, tags
def parse_markdown(content: str) -> Tuple[str, List[Dict[str, str]]]:
tags = []
content = LINKER.linkify(content)
content, hashtag_tags = hashtagify(content)
tags.extend(hashtag_tags)
content, mention_tags = mentionify(content)
tags.extend(mention_tags)
content = markdown(content)
return content, tags