348 lines
No EOL
12 KiB
Python
348 lines
No EOL
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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db = db_session()
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marseys = tuple(x[0] for x in db.query(Marsey.name).all())
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db.close()
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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', 'alt', '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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if sanitized.count(':') > 100: abort(418)
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if sanitized.count('@') > 50: abort(418)
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sanitized = markdown(sanitized)
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sanitized = sanitized.replace("\ufeff", "").replace("𒐪","").replace("<script","").replace('','')
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if alert:
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for i in re.finditer("<p>@((\w|-){1,25})", sanitized, re.A):
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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 alt="@{u.username}'s profile picture" loading="lazy" src="/uid/{u.id}/pic" class="pp20">@{u.username}</a>''', 1)
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else:
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sanitized = re.sub('(^|\s|\n|<p>)\/?((r|u)\/(\w|-){3,25})', r'\1<a href="https://old.reddit.com/\2" rel="nofollow noopener noreferrer">/\2</a>', sanitized, re.A)
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sanitized = re.sub('(^|\s|\n|<p>)\/?(s\/(\w|-){3,25})', r'\1<a href="/\2" rel="nofollow noopener noreferrer">/\2</a>', sanitized, re.A)
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for i in re.finditer('(^|\s|\n|<p>)@((\w|-){1,25})', sanitized, re.A):
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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 alt="@{u.username}'s profile picture" loading="lazy" src="/uid/{u.id}/pic" class="pp20">@{u.username}</a>''', 1)
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for i in re.finditer('https://i\.imgur\.com/(([^_]*?)\.(jpg|png|jpeg))(?!</code>)', sanitized):
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sanitized = sanitized.replace(i.group(1), i.group(2) + "_d.webp?maxwidth=9999&fidelity=high")
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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, features="html.parser")
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for tag in soup.find_all("img"):
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if tag.get("src") and tag.get("class") != ['pp20']:
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tag["class"] = "in-comment-image"
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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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for tag in soup.find_all("a"):
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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 re.match("https?://\S+", str(tag.string), re.A):
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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 = re.sub('\|\|(.*?)\|\|', r'<span class="spoiler">\1</span>', sanitized)
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if comment: marseys_used = set()
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emojis = list(re.finditer("[^a]>\s*(:[!#]{0,2}\w+:\s*)+<\/", sanitized, re.A))
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if len(emojis) > 20: edit = True
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for i in emojis:
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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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for i in re.finditer('(?<!"):([!#A-Za-z0-9]{1,30}?):', new):
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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() < 0.005 and ('marsey' in emoji or emoji in marseys): classes += ' golden'
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if remoji == 'marseyrandom': remoji = choice(marseys)
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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}:" delay="0" class="{classes}" src="/static/assets/images/emojis/{remoji}.webp" >', new, re.I)
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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(re.finditer('(?<!#"):([!#A-Za-z0-9]{1,30}?):', sanitized))
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if len(emojis) > 20: edit = True
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for i in emojis:
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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() < 0.005 and ('marsey' in emoji or emoji in marseys): classes += ' golden'
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old = emoji
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if emoji == 'marseyrandom': emoji = choice(marseys)
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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()[1:]}:', f'<img loading="lazy" data-bs-toggle="tooltip" alt=":!{old}:" title=":!{old}:" delay="0" class="{classes}" src="/static/assets/images/emojis/{emoji}.webp">', sanitized, re.I)
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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() < 0.005 and ('marsey' in emoji or emoji in marseys): classes += ' golden'
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old = emoji
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if emoji == 'marseyrandom': emoji = choice(marseys)
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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}:" delay="0" class="{classes}" src="/static/assets/images/emojis/{emoji}.webp">', sanitized, re.I)
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if comment: marseys_used.add(emoji)
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sanitized = sanitized.replace("https://youtu.be/", "https://youtube.com/watch?v=").replace("https://music.youtube.com/watch?v=", "https://youtube.com/watch?v=").replace("https://open.spotify.com/", "https://open.spotify.com/embed/").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")
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if "https://youtube.com/watch?v=" in sanitized: sanitized = sanitized.replace("?t=", "&t=")
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for i in re.finditer('" target="_blank">(https://youtube\.com/watch\?v\=(.*?))</a>(?!</code>)', sanitized):
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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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if not noimages:
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for i in re.finditer('>(https://.*?\.(mp4|webm|mov))</a></p>', sanitized):
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sanitized = sanitized.replace(f'<p><a href="{i.group(1)}" rel="nofollow noopener noreferrer" target="_blank">{i.group(1)}</a></p>', f'<p><video controls preload="none" class="embedvid"><source src="{i.group(1)}" type="video/{i.group(2)}"></video>')
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for i in re.finditer('<p>(https:.*?\.(mp4|webm|mov))</p>', sanitized):
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sanitized = sanitized.replace(i.group(0), f'<p><video controls preload="none" class="embedvid"><source src="{i.group(1)}" type="video/{i.group(2)}"></video>')
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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("old.reddit.com/gallery", "new.reddit.com/gallery")
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sanitized = re.sub(' (https:\/\/[^ <>]*)', r' <a target="_blank" rel="nofollow noopener noreferrer" href="\1">\1</a>', sanitized)
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sanitized = re.sub('<p>(https:\/\/[^ <>]*)', r'<p><a target="_blank" rel="nofollow noopener noreferrer" href="\1">\1</a></p>', 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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if title.count(':') > 100: abort(418)
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if title.count('@') > 50: abort(418)
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title = title.replace('<','<').replace('>','>').replace("\n", "").replace("\r", "").replace("\t", "").strip()
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title = bleach.clean(title, tags=[])
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emojis = list(re.finditer('(?<!"):([!A-Za-z0-9]{1,30}?):', title))
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if len(emojis) > 20: edit = True
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for i in emojis:
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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() < 0.005 and ('marsey' in emoji or emoji in marseys): classes += ' golden'
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old = emoji
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if emoji == 'marseyrandom': emoji = choice(marseys)
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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}:" delay="0" src="/static/assets/images/emojis/{emoji}.webp" class="{classes}">', title, re.I)
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else:
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classes = 'emoji'
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if not edit and random() < 0.005 and ('marsey' in emoji or emoji in marseys): classes += ' golden'
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old = emoji
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if emoji == 'marseyrandom': emoji = choice(marseys)
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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}:" delay="0" class="{classes}" src="/static/assets/images/emojis/{emoji}.webp">', title, re.I)
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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 |