mymastotag/mymastotag.py

import time
import feedparser
from flask import Flask, render_template, redirect, url_for, request
from bs4 import BeautifulSoup

# Source: https://lingohub.com/academy/best-practices/rtl-language-list
RTL_LANGS = ['ar', 'arc', 'dv', 'fa', 'ha', 'he', 'khw', 'ks', 'ku', 'ps', 'ur', 'yi']

application = Flask(__name__)

@application.route('/')
def redirect_to_repo():
    return redirect('https://nimrodkerrett.opalstacked.com/nimrodkerrett/mymastotag')

@application.route('/<string:lang>/<string:instance>/<string:user>/<string:tag>')
def my_masto_tag(lang, instance, user, tag):
    lang = lang.lower()
    is_rtl = lang in RTL_LANGS
    title = f'@{user}@{instance} &mdash; #{tag}'
    og_image = None
    tag_url = f'https://{instance}/@{user}/tagged/{tag}'
    feed = feedparser.parse(f'{tag_url}.rss')
    hashtag = '#' + tag.lower()
    if request.args.get('reverse',False):
        feed['entries'] = list(reversed(feed['entries']))
    for e in feed['entries']:
        e['date'] = time.strftime('%Y-%m-%d', e['published_parsed'])
        soup = BeautifulSoup(e['description'], 'html.parser')
        for link in soup.find_all('a'):
            link['target'] = '_blank'
            if link.text.lower()==hashtag:
                link['class'] = ['badge', 'rounded-pill', 'text-bg-info', 'text-decoration-none']
            else:
                link['class'] = ['link-info', 'text-decoration-none']
        e['description'] = str(soup)
        images = []
        videos =[]
        for m in e.get('media_content', []):
            mtype = m['type'].split('/')[0]
            if mtype=='image':
                images.append(m)
                if not og_image:
                    og_image = m.get('url')
            elif mtype=='video':
                videos.append(m)
        e['images'] = images
        e['has_images'] = not not images
        e['videos'] = videos
        e['has_videos'] = not not videos
    return render_template('index.html', lang=lang, is_rtl=is_rtl, title=title, tag_url=tag_url,
                           og_image=og_image or url_for('static', filename='hashtag.png', _external=True),
                           updated_time=int(time.time()), feed=feed)