forked from MarseyWorld/MarseyWorld
319 lines
12 KiB
Python
319 lines
12 KiB
Python
import bleach
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from bs4 import BeautifulSoup
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from bleach.linkifier import LinkifyFilter
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from functools import partial
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from .get import *
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from .patter import pat
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from os import path, environ
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import re
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from mistletoe import markdown
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from json import loads, dump
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from random import random, choice
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import signal
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import time
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import requests
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def sanitize(sanitized, noimages=False, alert=False, comment=False, edit=False):
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def handler(signum, frame):
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print("Timeout!")
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raise Exception("Timeout")
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signal.signal(signal.SIGALRM, handler)
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signal.alarm(1)
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sanitized = image_check_regex.sub(r'\1', sanitized)
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sanitized = markdown(sanitized)
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sanitized = strikethrough_regex.sub(r'<del>\1</del>', sanitized)
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sanitized = sanitized.replace('','').replace('','').replace("\ufeff", "").replace("𒐪","")
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if alert:
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captured = []
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for i in mention_regex2.finditer(sanitized):
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if i.group(0) in captured: continue
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captured.append(i.group(0))
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u = get_user(i.group(1), graceful=True)
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if u:
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sanitized = sanitized.replace(i.group(0), f'''<p><a href="/id/{u.id}"><img loading="lazy" src="/pp/{u.id}">@{u.username}</a>''', 1)
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else:
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sanitized = reddit_regex.sub(r'\1<a href="https://old.reddit.com/\2" rel="nofollow noopener noreferrer">/\2</a>', sanitized)
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sanitized = sub_regex.sub(r'\1<a href="/\2">/\2</a>', sanitized)
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captured = []
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for i in mention_regex.finditer(sanitized):
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if i.group(0) in captured: continue
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captured.append(i.group(0))
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u = get_user(i.group(2), graceful=True)
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if u and (not g.v.any_block_exists(u) or g.v.admin_level > 1):
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if noimages:
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sanitized = sanitized.replace(i.group(0), f'{i.group(1)}<a href="/id/{u.id}">@{u.username}</a>', 1)
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else:
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sanitized = sanitized.replace(i.group(0), f'''{i.group(1)}<a href="/id/{u.id}"><img loading="lazy" src="/pp/{u.id}">@{u.username}</a>''', 1)
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sanitized = imgur_regex.sub(r'\1_d.webp?maxwidth=9999&fidelity=high', sanitized)
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soup = BeautifulSoup(sanitized, 'lxml')
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for tag in soup.find_all("img"):
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if tag.get("src") and not tag["src"].startswith('/pp/'):
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tag["loading"] = "lazy"
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tag["data-src"] = tag["src"]
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tag["src"] = "/assets/images/loading.webp"
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tag['alt'] = f'![]({tag["data-src"]})'
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tag['referrerpolicy'] = "no-referrer"
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for tag in soup.find_all("a"):
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del tag["rel"]
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if tag.get("href"):
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if not tag["href"].startswith(SITE_FULL) and not tag["href"].startswith('/') and not tag["href"].startswith(SITE_FULL2):
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tag["target"] = "_blank"
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tag["rel"] = "nofollow noopener noreferrer"
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if fishylinks_regex.fullmatch(str(tag.string)):
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try: tag.string = tag["href"]
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except: tag.string = ""
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sanitized = str(soup)
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sanitized = spoiler_regex.sub(r'<spoiler>\1</spoiler>', sanitized)
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if comment: marseys_used = set()
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emojis = list(emoji_regex.finditer(sanitized))
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if len(emojis) > 20: edit = True
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captured = []
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for i in emojis:
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if i.group(0) in captured: continue
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captured.append(i.group(0))
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old = i.group(0)
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new = old.lower()
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captured2 = []
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for i in emoji_regex2.finditer(new):
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if i.group(0) in captured2: continue
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captured2.append(i.group(0))
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emoji = i.group(1).lower()
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remoji = emoji.replace('!','').replace('#','')
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golden = ' '
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if not edit and random() < 0.0025 and ('marsey' in emoji or emoji in marseys_const2): golden = 'g '
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if remoji == 'marseyrandom': remoji = choice(marseys_const2)
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if path.isfile(f'files/assets/images/emojis/{remoji}.webp'):
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new = re.sub(f'(?<!"):{emoji}:', f'<img loading="lazy" data-bs-toggle="tooltip" alt=":{emoji}:" title=":{emoji}:" b {golden}src="/e/{remoji}.webp">', new, flags=re.I|re.A)
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if comment: marseys_used.add(emoji)
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elif remoji.endswith('pat') and path.isfile(f"files/assets/images/emojis/{remoji.replace('pat','')}.webp"):
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pat(remoji.replace('pat',''))
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new = re.sub(f'(?<!"):{emoji}:', f'<img loading="lazy" data-bs-toggle="tooltip" alt=":{emoji}:" title=":{emoji}:" b {golden}src="/e/{remoji}.webp">', new, flags=re.I|re.A)
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requests.post(f'https://api.cloudflare.com/client/v4/zones/{CF_ZONE}/purge_cache', headers=CF_HEADERS, data={'files': [f"https://{request.host}/e/{emoji}.webp"]}, timeout=5)
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sanitized = sanitized.replace(old, new)
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emojis = list(emoji_regex3.finditer(sanitized))
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if len(emojis) > 20: edit = True
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captured = []
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for i in emojis:
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if i.group(0) in captured: continue
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captured.append(i.group(0))
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emoji = i.group(1).lower()
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golden = ' '
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if not edit and random() < 0.0025 and ('marsey' in emoji or emoji in marseys_const2): golden = 'g '
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old = emoji
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emoji = emoji.replace('!','').replace('#','')
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if emoji == 'marseyrandom': emoji = choice(marseys_const2)
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if path.isfile(f'files/assets/images/emojis/{emoji}.webp'):
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sanitized = re.sub(f'(?<!"):{i.group(1).lower()}:', f'<img loading="lazy" data-bs-toggle="tooltip" alt=":{old}:" title=":{old}:" {golden}src="/e/{emoji}.webp">', sanitized, flags=re.I|re.A)
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if comment: marseys_used.add(emoji)
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elif emoji.endswith('pat') and path.isfile(f"files/assets/images/emojis/{emoji.replace('pat','')}.webp"):
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pat(emoji.replace('pat',''))
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sanitized = re.sub(f'(?<!"):{i.group(1).lower()}:', f'<img loading="lazy" data-bs-toggle="tooltip" alt=":!{old}:" title=":!{old}:" {golden}src="/e/{emoji}.webp">', sanitized, flags=re.I|re.A)
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requests.post(f'https://api.cloudflare.com/client/v4/zones/{CF_ZONE}/purge_cache', headers=CF_HEADERS, data={'files': [f"https://{request.host}/e/{emoji}.webp"]}, timeout=5)
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for rd in ["://reddit.com", "://new.reddit.com", "://www.reddit.com", "://redd.it", "://libredd.it", "://teddit.net"]:
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sanitized = sanitized.replace(rd, "://old.reddit.com")
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sanitized = sanitized.replace("nitter.net", "twitter.com").replace("old.reddit.com/gallery", "reddit.com/gallery").replace("https://youtu.be/", "https://youtube.com/watch?v=").replace("https://music.youtube.com/watch?v=", "https://youtube.com/watch?v=").replace("https://streamable.com/", "https://streamable.com/e/").replace("https://youtube.com/shorts/", "https://youtube.com/watch?v=").replace("https://mobile.twitter", "https://twitter").replace("https://m.facebook", "https://facebook").replace("m.wikipedia.org", "wikipedia.org").replace("https://m.youtube", "https://youtube").replace("https://www.youtube", "https://youtube").replace("https://www.twitter", "https://twitter").replace("https://www.instagram", "https://instagram").replace("https://www.tiktok", "https://tiktok")
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if "https://youtube.com/watch?v=" in sanitized: sanitized = sanitized.replace("?t=", "&t=")
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captured = []
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for i in youtube_regex.finditer(sanitized):
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if i.group(0) in captured: continue
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captured.append(i.group(0))
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url = i.group(1)
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yt_id = i.group(2).split('&')[0].split('%')[0]
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if not yt_id_regex.fullmatch(yt_id): continue
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replacing = f'<a href="{url}" rel="nofollow noopener noreferrer" target="_blank">{url}</a>'
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params = parse_qs(urlparse(url.replace('&','&')).query)
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t = params.get('t', params.get('start', [0]))[0]
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if isinstance(t, str): t = t.replace('s','')
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htmlsource = f'<lite-youtube videoid="{yt_id}" params="autoplay=1&modestbranding=1'
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if t: htmlsource += f'&start={t}'
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htmlsource += '"></lite-youtube>'
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sanitized = sanitized.replace(replacing, htmlsource)
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sanitized = unlinked_regex.sub(r'\1<a href="\2" rel="nofollow noopener noreferrer" target="_blank">\2</a>', sanitized)
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if not noimages:
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sanitized = video_regex.sub(r'<p><video controls preload="none"><source src="\1"></video>', sanitized)
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if comment:
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for marsey in g.db.query(Marsey).filter(Marsey.name.in_(marseys_used)).all():
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marsey.count += 1
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g.db.add(marsey)
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if '#fortune' in sanitized:
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sanitized = sanitized.replace('#fortune', '')
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sanitized += '\n\n<p>' + choice(FORTUNE_REPLIES) + '</p>'
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sanitized = sanitized.replace('&','&')
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sanitized = utm_regex.sub('', sanitized)
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sanitized = utm_regex2.sub('', sanitized)
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sanitized = sanitized.replace('<html><body>','').replace('</body></html>','')
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allowed_tags = ['b','blockquote','br','code','del','em','h1','h2','h3','h4','h5','h6','hr','i','li','ol','p','pre','strong','sub','sup','table','tbody','th','thead','td','tr','ul','marquee','a','span','ruby','rp','rt','spoiler']
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if not noimages: allowed_tags += ['img','video','lite-youtube','source']
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def allowed_attributes(tag, name, value):
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if name == 'style': return True
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if tag == 'marquee':
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if name in ['direction', 'behavior', 'scrollamount']: return True
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if name in {'height', 'width'}:
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try: value = int(value.replace('px', ''))
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except: return False
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if 0 < value <= 250: return True
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return False
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if tag == 'a':
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if name == 'href': return True
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if name == 'rel' and value == 'nofollow noopener noreferrer': return True
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if name == 'target' and value == '_blank': return True
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return False
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if tag == 'img':
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if name == 'loading' and value == 'lazy': return True
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if name == 'referrpolicy' and value == 'no-referrer': return True
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if name == 'data-bs-toggle' and value == 'tooltip': return True
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if name in ['src','data-src','alt','title','g','b']: return True
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return False
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if tag == 'lite-youtube':
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if name == 'params' and value.startswith('autoplay=1&modestbranding=1'): return True
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if name == 'videoid': return True
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return False
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if tag == 'video':
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if name == 'controls' and value == '': return True
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if name == 'preload' and value == 'none': return True
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return False
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if tag == 'source':
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if name == 'src': return True
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return False
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sanitized = bleach.Cleaner(tags=allowed_tags,
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attributes=allowed_attributes,
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protocols=['http', 'https'],
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styles=['color', 'background-color', 'font-weight', 'text-align'],
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filters=[partial(LinkifyFilter,skip_tags=["pre"],parse_email=False)]
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).clean(sanitized)
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signal.alarm(0)
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return sanitized
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def filter_emojis_only(title, edit=False, graceful=False):
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def handler(signum, frame):
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print("Timeout!")
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raise Exception("Timeout")
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signal.signal(signal.SIGALRM, handler)
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signal.alarm(1)
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title = title.replace('','').replace('','').replace("\ufeff", "").replace("𒐪","").replace("\n", "").replace("\r", "").replace("\t", "").replace("&", "&").replace('<','<').replace('>','>').replace('"', '"').replace("'", "'").strip()
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emojis = list(emoji_regex4.finditer(title))
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if len(emojis) > 20: edit = True
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captured = []
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for i in emojis:
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if i.group(0) in captured: continue
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captured.append(i.group(0))
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emoji = i.group(1).lower()
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golden = ' '
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if not edit and random() < 0.0025 and ('marsey' in emoji or emoji in marseys_const2): golden = 'g '
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old = emoji
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emoji = emoji.replace('!','').replace('#','')
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if emoji == 'marseyrandom': emoji = choice(marseys_const2)
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if path.isfile(f'files/assets/images/emojis/{emoji}.webp'):
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title = re.sub(f'(?<!"):{old}:', f'<img loading="lazy" data-bs-toggle="tooltip" alt=":{old}:" title=":{old}:" {golden}src="/e/{emoji}.webp">', title, flags=re.I|re.A)
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elif emoji.endswith('pat') and path.isfile(f"files/assets/images/emojis/{emoji.replace('pat','')}.webp"):
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pat(emoji.replace('pat',''))
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title = re.sub(f'(?<!"):{old}:', f'<img loading="lazy" data-bs-toggle="tooltip" alt=":{old}:" title=":{old}:" {golden}src="/e/{emoji}.webp">', title, flags=re.I|re.A)
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requests.post(f'https://api.cloudflare.com/client/v4/zones/{CF_ZONE}/purge_cache', headers=CF_HEADERS, data={'files': [f"https://{request.host}/e/{emoji}.webp"]}, timeout=5)
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title = strikethrough_regex.sub(r'<del>\1</del>', title)
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def allowed_attributes(tag, name, value):
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if tag == 'img':
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if name == 'loading' and value == 'lazy': return True
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if name == 'data-bs-toggle' and value == 'tooltip': return True
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if name in ['src','alt','title','g']: return True
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return False
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sanitized = bleach.clean(title, tags=['img','del'], attributes=allowed_attributes, protocols=['http','https'])
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signal.alarm(0)
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if len(title) > 1500 and not graceful: abort(400)
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else: return title |