376 lines
12 KiB
Python
376 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 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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allowed_tags = tags = ['b',
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'blockquote',
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'br',
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'code',
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'del',
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'em',
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'h1',
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'h2',
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'h3',
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'h4',
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'h5',
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'h6',
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'hr',
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'i',
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'li',
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'ol',
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'p',
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'pre',
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'strong',
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'sup',
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'table',
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'tbody',
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'th',
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'thead',
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'td',
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'tr',
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'ul',
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'marquee',
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'a',
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'img',
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'span',
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'ruby',
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'rp',
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'rt',
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]
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no_images = ['b',
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'blockquote',
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'br',
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'code',
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'del',
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'em',
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'h1',
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'h2',
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'h3',
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'h4',
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'h5',
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'h6',
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'hr',
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'i',
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'li',
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'ol',
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'p',
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'pre',
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'strong',
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'sup',
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'table',
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'tbody',
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'th',
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'thead',
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'td',
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'tr',
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'ul',
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'marquee',
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'a',
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'span',
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'ruby',
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'rp',
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'rt',
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]
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def sanitize_marquee(tag, name, value):
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if name in allowed_attributes['*'] or 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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allowed_attributes = {
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'*': ['href', 'style', 'src', 'class', 'title', 'loading'],
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'marquee': sanitize_marquee}
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allowed_protocols = ['http', 'https']
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allowed_styles = ['color', 'background-color', 'font-weight', 'text-align']
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def handler(signum, frame):
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print("Forever is over!")
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raise Exception("end of time")
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def sanitize(sanitized, noimages=False, alert=False, comment=False, edit=False):
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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("\ufeff", "").replace("𒐪","").replace("<script","").replace("script>","").replace('','')
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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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if noimages:
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sanitized = bleach.Cleaner(tags=no_images,
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attributes=allowed_attributes,
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protocols=allowed_protocols,
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styles=allowed_styles,
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filters=[partial(LinkifyFilter,
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skip_tags=["pre"],
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parse_email=False,
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)
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]
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).clean(sanitized)
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else:
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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','font-weight','transform','-webkit-transform'],
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filters=[partial(LinkifyFilter,
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skip_tags=["pre"],
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parse_email=False,
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)
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]
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).clean(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["class"] = "img"
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tag["loading"] = "lazy"
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tag["data-src"] = tag["src"]
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tag["src"] = "/static/assets/images/loading.webp"
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tag['alt'] = f'![]({tag["data-src"]})'
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tag["onclick"] = "expandDesktopImage(this.src);"
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tag["data-bs-toggle"] = "modal"
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tag["data-bs-target"] = "#expandImageModal"
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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'<span class="spoiler">\1</span>', 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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if 'marseylong1' in old or 'marseylong2' in old or 'marseyllama1' in old or 'marseyllama2' in old: new = old.lower().replace(">", " class='mb-0'>")
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else: 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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if emoji.startswith("#!") or emoji.startswith("!#"):
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classes = 'emoji-lg mirrored'
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remoji = emoji[2:]
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elif emoji.startswith("#"):
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classes = 'emoji-lg'
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remoji = emoji[1:]
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elif emoji.startswith("!"):
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classes = 'emoji-md mirrored'
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remoji = emoji[1:]
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else:
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classes = 'emoji-md'
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remoji = emoji
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if not edit and random() < 0.0025 and ('marsey' in emoji or emoji in marseys_const2): classes += ' golden'
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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}:" class="{classes}" src="/e/{remoji}.webp">', new, flags=re.I|re.A)
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if comment: marseys_used.add(emoji)
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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().replace('#','')
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if emoji.startswith("!"):
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emoji = emoji[1:]
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classes = 'emoji mirrored'
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if not edit and random() < 0.0025 and ('marsey' in emoji or emoji in marseys_const2): classes += ' golden'
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old = emoji
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if emoji == 'marseyrandom': emoji = choice(marseys_const2)
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else: emoji = old
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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}:" class="{classes}" src="/e/{emoji}.webp">', sanitized, flags=re.I|re.A)
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if comment: marseys_used.add(emoji)
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else:
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classes = 'emoji'
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if not edit and random() < 0.0025 and ('marsey' in emoji or emoji in marseys_const2): classes += ' golden'
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old = emoji
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if emoji == 'marseyrandom': emoji = choice(marseys_const2)
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else: emoji = old
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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}:" class="{classes}" src="/e/{emoji}.webp">', sanitized, flags=re.I|re.A)
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if comment: marseys_used.add(emoji)
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for rd in ["://reddit.com", "://new.reddit.com", "://www.reddit.com", "://redd.it", "://libredd.it"]:
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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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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" class="vid"><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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signal.alarm(0)
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return sanitized
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def handler2(signum, frame):
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print("Forever is over!")
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raise Exception("end of time")
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def filter_emojis_only(title, edit=False, graceful=False):
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signal.signal(signal.SIGALRM, handler2)
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signal.alarm(1)
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title = title.replace("<script","").replace("script>","").replace("&", "&").replace('<','<').replace('>','>').replace('"', '"').replace("'", "'").replace("\ufeff", "").replace("𒐪","").replace('','').replace("\n", "").replace("\r", "").replace("\t", "").strip()
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title = bleach.clean(title, tags=[])
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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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if emoji.startswith("!"):
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emoji = emoji[1:]
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classes = 'emoji mirrored'
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if not edit and random() < 0.0025 and ('marsey' in emoji or emoji in marseys_const2): classes += ' golden'
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old = emoji
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if emoji == 'marseyrandom': emoji = choice(marseys_const2)
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else: emoji = old
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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}:" src="/e/{emoji}.webp" class="{classes}">', title, flags=re.I|re.A)
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else:
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classes = 'emoji'
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if not edit and random() < 0.0025 and ('marsey' in emoji or emoji in marseys_const2): classes += ' golden'
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old = emoji
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if emoji == 'marseyrandom': emoji = choice(marseys_const2)
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else: emoji = old
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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}:" class="{classes}" src="/e/{emoji}.webp">', title, flags=re.I|re.A)
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title = strikethrough_regex.sub(r'<del>\1</del>', title)
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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 |