import functools
import random
import re
import signal
from functools import partial
from os import path, listdir
from typing import Any
from urllib.parse import parse_qs, urlparse, unquote
import bleach
from bleach.css_sanitizer import CSSSanitizer
from bleach.linkifier import LinkifyFilter
from bs4 import BeautifulSoup
from mistletoe import markdown
from files.classes.domains import BannedDomain
from files.classes.mod_logs import ModAction
from files.classes.notifications import Notification
from files.classes.group import Group
from files.helpers.config.const import *
from files.helpers.const_stateful import *
from files.helpers.regex import *
from files.helpers.get import *
TLDS = ( # Original gTLDs and ccTLDs
'ac','ad','ae','aero','af','ag','ai','al','am','an','ao','aq','ar','arpa','as','asia','at',
'au','aw','ax','az','ba','bb','bd','be','bf','bg','bh','bi','biz','bj','bm','bn','bo','br',
'bs','bt','bv','bw','by','bz','ca','cafe','cat','cc','cd','cf','cg','ch','ci','ck','cl',
'cm','cn','co','com','coop','cr','cu','cv','cx','cy','cz','de','dj','dk','dm','do','dz','ec',
'edu','ee','eg','er','es','et','eu','fi','fj','fk','fm','fo','fr','ga','gb','gd','ge','gf',
'gg','gh','gi','gl','gm','gn','gov','gp','gq','gr','gs','gt','gu','gw','gy','hk','hm','hn',
'hr','ht','hu','id','ie','il','im','in','info','int','io','iq','ir','is','it','je','jm','jo',
'jobs','jp','ke','kg','kh','ki','km','kn','kp','kr','kw','ky','kz','la','lb','lc','li','lk',
'lr','ls','lt','lu','lv','ly','ma','mc','md','me','mg','mh','mil','mk','ml','mm','mn','mo',
'mobi','mp','mq','mr','ms','mt','mu','museum','mv','mw','mx','my','mz','na','name',
'nc','ne','net','nf','ng','ni','nl','no','np','nr','nu','nz','om','org','pa','pe','pf','pg',
'ph','pk','pl','pm','pn','post','pr','pro','ps','pt','pw','py','qa','re','ro','rs','ru','rw',
'sa','sb','sc','sd','se','sg','sh','si','sj','sk','sl','sm','sn','so','social','sr','ss','st',
'su','sv','sx','sy','sz','tc','td','tel','tf','tg','th','tj','tk','tl','tm','tn','to','tp',
'tr','travel','tt','tv','tw','tz','ua','ug','uk','us','uy','uz','va','vc','ve','vg','vi','vn',
'vu','wf','ws','xn','xxx','ye','yt','yu','za','zm','zw',
# New gTLDs
'app','cleaning','club','dev','farm','florist','fun','gay','lgbt','life','lol',
'moe','mom','monster','new','news','online','pics','press','pub','site','blog',
'vip','win','world','wtf','xyz','video','host','art','media','wiki','tech',
'cooking','network','party','goog','markets',
)
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','img','lite-youtube','video','audio','g','u')
allowed_styles = ['color', 'background-color', 'font-weight', 'text-align']
def allowed_attributes(tag, name, value):
if name == 'style': return True
if tag == 'marquee':
if name in {'direction', 'behavior', 'scrollamount'}: return True
if name in {'height', 'width'}:
try: value = int(value.replace('px', ''))
except: return False
if 0 < value <= 250: return True
if tag == 'a':
if name == 'href' and '\\' not in value and 'xn--' not in value:
return True
if name == 'rel' and value == 'nofollow noopener': return True
if name == 'target' and value == '_blank': return True
if tag == 'img':
if name in {'src','data-src'}: return is_safe_url(value)
if name == 'loading' and value == 'lazy': return True
if name == 'data-bs-toggle' and value == 'tooltip': return True
if name in {'g','b','glow'} and not value: return True
if name in {'alt','title'}: return True
if name == 'class' and value == 'img': return True
if tag == 'lite-youtube':
if name == 'params' and value.startswith('autoplay=1&modestbranding=1'): return True
if name == 'videoid': return True
if tag == 'video':
if name == 'controls' and value == '': return True
if name == 'preload' and value == 'none': return True
if name == 'src': return is_safe_url(value)
if tag == 'audio':
if name == 'src': return is_safe_url(value)
if name == 'controls' and value == '': return True
if name == 'preload' and value == 'none': return True
if tag == 'p':
if name == 'class' and value in {'mb-0','resizable'}: return True
if tag == 'span':
if name == 'data-bs-toggle' and value == 'tooltip': return True
if name == 'title': return True
if name == 'alt': return True
if tag == 'table':
if name == 'class' and value == 'table': return True
return False
def build_url_re(tlds, protocols):
"""Builds the url regex used by linkifier
If you want a different set of tlds or allowed protocols, pass those in
and stomp on the existing ``url_re``::
from bleach import linkifier
my_url_re = linkifier.build_url_re(my_tlds_list, my_protocols)
linker = LinkifyFilter(url_re=my_url_re)
"""
return re.compile(
r"""\(*# Match any opening parentheses.
\b(?"]*)?
# /path/zz (excluding "unsafe" chars from RFC 1738,
# except for ~, which happens in practice)
(?:\#[^#\s\|\\\^\[\]`<>"]*)?
# #hash (excluding "unsafe" chars from RFC 1738,
# except for ~, which happens in practice)
""".format(
"|".join(sorted(protocols)), "|".join(sorted(tlds))
),
re.VERBOSE | re.UNICODE,
)
url_re = build_url_re(tlds=TLDS, protocols=['http', 'https'])
def create_comment_duplicated(text_html):
new_comment = Comment(author_id=AUTOJANNY_ID,
parent_submission=None,
body_html=text_html,
distinguish_level=6,
is_bot=True)
g.db.add(new_comment)
g.db.flush()
new_comment.top_comment_id = new_comment.id
return new_comment.id
def send_repeatable_notification_duplicated(uid, text):
if uid in BOT_IDs: return
text_html = sanitize(text)
existing_comments = g.db.query(Comment.id).filter_by(author_id=AUTOJANNY_ID, parent_submission=None, body_html=text_html, is_bot=True).order_by(Comment.id).all()
for c in existing_comments:
existing_notif = g.db.query(Notification.user_id).filter_by(user_id=uid, comment_id=c.id).one_or_none()
if not existing_notif:
notif = Notification(comment_id=c.id, user_id=uid)
g.db.add(notif)
return
cid = create_comment_duplicated(text_html)
notif = Notification(comment_id=cid, user_id=uid)
g.db.add(notif)
def execute_blackjack(v, target, body, type):
if not blackjack or not body: return False
execute = False
for x in blackjack.split(','):
if all(i in body.lower() for i in x.split()):
execute = True
if not execute: return False
v.shadowbanned = AUTOJANNY_ID
ma = ModAction(
kind="shadowban",
user_id=AUTOJANNY_ID,
target_user_id=v.id,
_note='reason: "Blackjack"'
)
g.db.add(ma)
v.ban_reason = "Blackjack"
g.db.add(v)
notified_ids = [x[0] for x in g.db.query(User.id).filter(User.admin_level >= PERMS['BLACKJACK_NOTIFICATIONS'])]
extra_info = type
if target:
if type == 'post':
extra_info = target.permalink
elif type == 'report':
extra_info = f"reports on {target.permalink}"
elif type in {'comment', 'message'}:
for id in notified_ids:
n = Notification(comment_id=target.id, user_id=id)
g.db.add(n)
extra_info = None
if extra_info:
for id in notified_ids:
send_repeatable_notification_duplicated(id, f"Blackjack by @{v.username}: {extra_info}")
return True
def render_emoji(html, regexp, golden, emojis_used, b=False):
emojis = list(regexp.finditer(html))
captured = set()
for i in emojis:
if i.group(0) in captured: continue
captured.add(i.group(0))
emoji = i.group(1).lower()
attrs = ''
if b: attrs += ' b'
if golden and len(emojis) <= 20 and ('marsey' in emoji or emoji in marseys_const2):
if random.random() < 0.0025: attrs += ' g'
elif random.random() < 0.00125: attrs += ' glow'
old = emoji
emoji = emoji.replace('!','').replace('#','')
if emoji == 'marseyrandom': emoji = random.choice(marseys_const2)
emoji_partial_pat = ''
emoji_partial = '
'
emoji_html = None
if emoji.endswith('pat') and emoji != 'marseyunpettablepat':
if path.isfile(f"files/assets/images/emojis/{emoji.replace('pat','')}.webp"):
emoji_html = f'
{emoji_partial_pat.format(old, f"/e/{emoji[:-3]}.webp", attrs)}'
elif emoji.startswith('@'):
if u := get_user(emoji[1:-3], graceful=True):
emoji_html = f'
{emoji_partial_pat.format(old, f"/pp/{u.id}", attrs)}'
elif path.isfile(f'files/assets/images/emojis/{emoji}.webp'):
emoji_html = emoji_partial.format(old, f'/e/{emoji}.webp', attrs)
if emoji_html:
emojis_used.add(emoji)
html = re.sub(f'(?)', emoji_html, html)
return html
def with_sigalrm_timeout(timeout: int):
'Use SIGALRM to raise an exception if the function executes for longer than timeout seconds'
# while trying to test this using time.sleep I discovered that gunicorn does in fact do some
# async so if we timeout on that (or on a db op) then the process is crashed without returning
# a proper 500 error. Oh well.
def sig_handler(signum, frame):
print("Timeout!", flush=True)
raise Exception("Timeout")
def inner(func):
@functools.wraps(func)
def wrapped(*args, **kwargs):
signal.signal(signal.SIGALRM, sig_handler)
signal.alarm(timeout)
try:
return func(*args, **kwargs)
finally:
signal.alarm(0)
return wrapped
return inner
def sanitize_raw_title(sanitized:Optional[str]) -> str:
if not sanitized: return ""
sanitized = sanitized.replace('\u200e','').replace('\u200b','').replace("\ufeff", "").replace("\r","").replace("\n", "").replace("𒐫", "").replace('\u202e','')
sanitized = sanitized.strip()
return sanitized[:POST_TITLE_LENGTH_LIMIT]
def sanitize_raw_body(sanitized:Optional[str], is_post:bool) -> str:
if not sanitized: return ""
sanitized = html_comment_regex.sub('', sanitized)
sanitized = sanitized.replace('\u200e','').replace('\u200b','').replace("\ufeff", "").replace("\r\n", "\n").replace("𒐫", "").replace('\u202e','')
sanitized = sanitized.strip()
return sanitized[:POST_BODY_LENGTH_LIMIT(g.v) if is_post else COMMENT_BODY_LENGTH_LIMIT]
def sanitize_settings_text(sanitized:Optional[str], max_length:Optional[int]=None) -> str:
if not sanitized: return ""
sanitized = sanitized.replace('\u200e','').replace('\u200b','').replace("\ufeff", "").replace("\r", "").replace("\n","")
sanitized = sanitized.strip()
if max_length: sanitized = sanitized[:max_length]
return sanitized
def handle_youtube_links(url):
html = None
params = parse_qs(urlparse(url).query, keep_blank_values=True)
id = params.get('v')
if not id: return None
id = id[0]
t = None
split = id.split('?t=')
if len(split) == 2:
id = split[0]
t = split[1]
id = id.split('?')[0]
if yt_id_regex.fullmatch(id):
if not t:
t = params.get('t', params.get('start', [0]))[0]
if isinstance(t, str):
t = t.replace('s','').replace('S','')
split = t.split('m')
if len(split) == 2:
minutes = int(split[0])
seconds = int(split[1])
t = minutes*60 + seconds
html = f'
' not in sanitized: sanitized = linefeeds_regex.sub(r'\1\n\n\2', sanitized) sanitized = greentext_regex.sub(r'\1\>\2 ', sanitized) sanitized = image_regex.sub(r'\1![](\2)', sanitized) sanitized = image_check_regex.sub(r'\1', sanitized) sanitized = link_fix_regex.sub(r'\1https://\2', sanitized) if FEATURES['MARKUP_COMMANDS']: sanitized = command_regex.sub(command_regex_matcher, sanitized) sanitized = numbered_list_regex.sub(r'\1\. ', sanitized) sanitized = strikethrough_regex.sub(r'\1\2', sanitized) sanitized = markdown(sanitized) # replacing zero width characters, overlines, fake colons sanitized = sanitized.replace('\u200e','').replace('\u200b','').replace("\ufeff", "").replace("\u033f","").replace("\u0589", ":") sanitized = reddit_regex.sub(r'\1/\2', sanitized) sanitized = sub_regex.sub(r'\1/\2', sanitized) v = getattr(g, 'v', None) names = set(m.group(1) for m in mention_regex.finditer(sanitized)) if limit_pings and len(names) > limit_pings and not v.admin_level >= PERMS['POST_COMMENT_INFINITE_PINGS']: abort(406) users_list = get_users(names, graceful=True) users_dict = {} for u in users_list: users_dict[u.username.lower()] = u if u.original_username: users_dict[u.original_username.lower()] = u if u.prelock_username: users_dict[u.prelock_username.lower()] = u def replacer(m): u = users_dict.get(m.group(1).lower()) if not u or (v and u.id in v.all_twoway_blocks): return m.group(0) return f'@{u.username}' sanitized = mention_regex.sub(replacer, sanitized) if FEATURES['PING_GROUPS']: def group_replacer(m): name = m.group(1).lower() if name == 'everyone': return f'!{name}' elif g.db.get(Group, name): return f'!{name}' else: return m.group(0) sanitized = group_mention_regex.sub(group_replacer, sanitized) soup = BeautifulSoup(sanitized, 'lxml') for tag in soup.find_all("img"): if tag.get("src") and not tag["src"].startswith('/pp/'): if not is_safe_url(tag["src"]): a = soup.new_tag("a", href=tag["src"], rel="nofollow noopener", target="_blank") a.string = tag["src"] tag.replace_with(a) continue tag["loading"] = "lazy" tag["data-src"] = tag["src"] tag["src"] = f"{SITE_FULL_IMAGES}/i/l.webp" tag['alt'] = tag["data-src"] tag['class'] = "img" if tag.parent.name != 'a': a = soup.new_tag("a", href=tag["data-src"]) if not is_site_url(a["href"]): a["rel"] = "nofollow noopener" a["target"] = "_blank" tag = tag.replace_with(a) a.append(tag) tag["data-src"] = tag["data-src"].replace('/giphy.webp', '/200w.webp') sanitized = str(soup).replace('','').replace('','') sanitized = spoiler_regex.sub(r'
\1 ', sanitized) emojis_used = set() emojis = list(emoji_regex.finditer(sanitized)) if len(emojis) > 20: golden = False captured = [] for i in emojis: if i.group(0) in captured: continue captured.append(i.group(0)) old = i.group(0) if 'marseylong1' in old or 'marseylong2' in old or 'marseylongcockandballs' in old or 'marseyllama1' in old or 'marseyllama2' in old: new = old.lower().replace(">", " class='mb-0'>") else: new = old.lower() new = render_emoji(new, emoji_regex2, golden, emojis_used, True) sanitized = sanitized.replace(old, new) emojis = list(emoji_regex2.finditer(sanitized)) if len(emojis) > 20: golden = False sanitized = render_emoji(sanitized, emoji_regex2, golden, emojis_used) sanitized = sanitized.replace('&','&') captured = [] for i in youtube_regex.finditer(sanitized): if i.group(0) in captured: continue captured.append(i.group(0)) html = handle_youtube_links(i.group(2)) if html: sanitized = sanitized.replace(i.group(0), i.group(1) + html) sanitized = video_sub_regex.sub(r'\1', sanitized) sanitized = audio_sub_regex.sub(r'\1', sanitized) if count_emojis: for emoji in g.db.query(Emoji).filter(Emoji.submitter_id==None, Emoji.name.in_(emojis_used)).all(): emoji.count += 1 g.db.add(emoji) sanitized = sanitized.replace('', '') if g.v and g.v.agendaposter: allowed_css_properties = allowed_styles else: allowed_css_properties = allowed_styles + ["filter"] css_sanitizer = CSSSanitizer(allowed_css_properties=allowed_css_properties) sanitized = bleach.Cleaner(tags=allowed_tags, attributes=allowed_attributes, protocols=['http', 'https'], css_sanitizer=css_sanitizer, filters=[partial(LinkifyFilter, skip_tags=["pre"], parse_email=False, url_re=url_re)] ).clean(sanitized) #doing this here cuz of the linkifyfilter right above it (therefore unifying all link processing logic) soup = BeautifulSoup(sanitized, 'lxml') links = soup.find_all("a") banned_domains = [x.domain for x in g.db.query(BannedDomain.domain).all()] for link in links: #remove empty links if not link.contents or not str(link.contents[0]).strip(): link.extract() continue href = link.get("href") if not href: continue def unlinkfy(): link.string = href del link["href"] #\ in href right after / makes most browsers ditch site hostname and allows for a host injection bypassing the check, see cool if "\\" in href: unlinkfy() continue #don't allow something like this https://rdrama.net/post/78376/reminder-of-the-fact-that-our/2150032#context domain = tldextract.extract(href).registered_domain if domain and not allowed_domain_regex.fullmatch(domain): unlinkfy() continue #check for banned domain combined = (domain + urlparse(href).path).lower() if any((combined.startswith(x) for x in banned_domains)): unlinkfy() continue #don't allow something like this [@Aevann2](https://iplogger.org/1fRKk7) if str(link.string).startswith('@') and not href.startswith('/'): unlinkfy() continue #don't allow something like this [!jannies](https://iplogger.org/1fRKk7) if str(link.string).startswith('!') and not href.startswith('/'): unlinkfy() continue #don't allow something like this [https://rԁrama.net/leaderboard](https://iplogger.org/1fRKk7) if not snappy and tldextract.extract(str(link.string)).registered_domain: link.string = href #insert target="_blank" and ref="nofollower noopener" for external link if not href.startswith('/') and not href.startswith(f'{SITE_FULL}/'): link["target"] = "_blank" link["rel"] = "nofollow noopener" sanitized = str(soup).replace('','').replace('','') def error(error): if chat: return error, 403 else: abort(403, error) if discord_username_regex.match(sanitized): return error("Stop grooming!") if '' not in sanitized and blackjack != "rules": sanitized = sanitized.replace('\n','') if showmore: # Insert a show more button if the text is too long or has too many paragraphs CHARLIMIT = 3000 pos = 0 for _ in range(20): pos = sanitized.find('', pos + 4) if pos < 0: break if (pos < 0 and len(sanitized) > CHARLIMIT) or pos > CHARLIMIT: pos = CHARLIMIT - 500 if pos >= 0: sanitized = (sanitized[:pos] + showmore_regex.sub(r'\1\2 ', sanitized[pos:], count=1)) return sanitized.strip() def allowed_attributes_emojis(tag, name, value): if tag == 'img': if name == 'src' and value.startswith('/') and '\\' not in value: return True if name == 'loading' and value == 'lazy': return True if name == 'data-bs-toggle' and value == 'tooltip': return True if name in {'g','glow'} and not value: return True if name in {'alt','title'}: return True if tag == 'span': if name == 'data-bs-toggle' and value == 'tooltip': return True if name == 'title': return True if name == 'alt': return True return False @with_sigalrm_timeout(1) def filter_emojis_only(title, golden=True, count_emojis=False, graceful=False, strip=True): title = title.replace('','').replace('','').replace("\ufeff", "").replace("𒐪","").replace("\n", "").replace("\r", "").replace("\t", "").replace('<','<').replace('>','>').replace("﷽","") emojis_used = set() title = render_emoji(title, emoji_regex3, golden, emojis_used) if count_emojis: for emoji in g.db.query(Emoji).filter(Emoji.submitter_id==None, Emoji.name.in_(emojis_used)).all(): emoji.count += 1 g.db.add(emoji) title = strikethrough_regex.sub(r'\1\2', title) title = bleach.clean(title, tags=['img','del','span'], attributes=allowed_attributes_emojis, protocols=['http','https']).replace('\n','') if strip: title = title.strip() if len(title) > POST_TITLE_HTML_LENGTH_LIMIT and not graceful: abort(400) else: return title def normalize_url(url): url = reddit_domain_regex.sub(r'\1https://old.reddit.com/\3/', url) url = url.replace("https://youtu.be/", "https://youtube.com/watch?v=") \ .replace("https://music.youtube.com/watch?v=", "https://youtube.com/watch?v=") \ .replace("https://www.youtube.com", "https://youtube.com") \ .replace("https://m.youtube.com", "https://youtube.com") \ .replace("https://youtube.com/shorts/", "https://youtube.com/watch?v=") \ .replace("https://youtube.com/v/", "https://youtube.com/watch?v=") \ .replace("https://mobile.twitter.com", "https://twitter.com") \ .replace("https://m.facebook.com", "https://facebook.com") \ .replace("https://m.wikipedia.org", "https://wikipedia.org") \ .replace("https://www.twitter.com", "https://twitter.com") \ .replace("https://www.instagram.com", "https://instagram.com") \ .replace("https://www.tiktok.com", "https://tiktok.com") \ .replace("https://www.streamable.com", "https://streamable.com") \ .replace("https://streamable.com/", "https://streamable.com/e/") \ .replace("https://streamable.com/e/e/", "https://streamable.com/e/") \ .replace("https://search.marsey.cat/#", "https://camas.unddit.com/#") \ .replace("https://imgur.com/", "https://i.imgur.com/") \ .replace("https://nitter.net/", "https://twitter.com/") \ .replace("https://nitter.42l.fr/", "https://twitter.com/") \ .replace("https://nitter.lacontrevoie.fr/", "https://twitter.com/") \ .replace("/giphy.gif", "/giphy.webp") \ url = imgur_regex.sub(r'\1_d.webp?maxwidth=9999&fidelity=grand', url) url = giphy_regex.sub(r'\1.webp', url) url = unquote(url) return url def validate_css(css): if '@import' in css: return False, "CSS @import statements are not allowed!" if '/*' in css: return False, "CSS comments are not allowed!" for i in css_url_regex.finditer(css): url = i.group(1) if not is_safe_url(url): domain = tldextract.extract(url).registered_domain return False, f"The domain '{domain}' is not allowed, please use one of these domains\n\n{approved_embed_hosts}." return True, "" def torture_ap(string, username): if not string: return string for k, l in AJ_REPLACEMENTS.items(): string = string.replace(k, l) string = torture_regex.sub(rf'\1@{username}\3', string) string = torture_regex2.sub(rf'\1@{username} is\3', string) string = torture_regex3.sub(rf"\1@{username}'s\3", string) return string def complies_with_chud(obj): #check for cases where u should leave if not obj.author.agendaposter: return True if obj.author.marseyawarded: return True if isinstance(obj, Submission): if obj.id in ADMIGGER_THREADS: return True if obj.sub == "chudrama": return True elif obj.parent_submission: if obj.parent_submission in ADMIGGER_THREADS: return True if obj.post.sub == "chudrama": return True #perserve old body_html to be used in checking for chud phrase old_body_html = obj.body_html #torture body_html if obj.body_html and '&&' not in obj.body_html and '
$$' not in obj.body_html and '
##' not in obj.body_html: soup = BeautifulSoup(obj.body_html, 'lxml') tags = soup.html.body.find_all(lambda tag: tag.name not in {'blockquote','codeblock','pre'} and tag.string, recursive=False) for tag in tags: tag.string.replace_with(torture_ap(tag.string, obj.author.username)) obj.body_html = str(soup).replace('
','').replace('','') #torture title_html and check for agendaposter_phrase in plain title and leave if it's there if isinstance(obj, Submission): obj.title_html = torture_ap(obj.title_html, obj.author.username) if obj.author.agendaposter_phrase in obj.title.lower(): return True #check for agendaposter_phrase in body_html if old_body_html: excluded_tags = {'del','sub','sup','marquee','spoiler','lite-youtube','video','audio'} soup = BeautifulSoup(old_body_html, 'lxml') tags = soup.html.body.find_all(lambda tag: tag.name not in excluded_tags and not tag.attrs, recursive=False) for tag in tags: for text in tag.find_all(text=True, recursive=False): if obj.author.agendaposter_phrase in text.lower(): return True return False