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spamhandling.py
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spamhandling.py
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# coding=utf-8
import sys
from findspam import FindSpam
import datahandling
import chatcommunicate
from globalvars import GlobalVars
from datetime import datetime
import parsing
import metasmoke
import excepthook
from classes import Post, PostParseError
from helpers import log
from tasks import Tasks
# noinspection PyMissingTypeHints
def should_whitelist_prevent_alert(user_url, reasons):
is_whitelisted = datahandling.is_whitelisted_user(parsing.get_user_from_url(user_url))
if not is_whitelisted:
return False
reasons_comparison = [r for r in set(reasons) if "username" not in r]
return len(reasons_comparison) == 0
# noinspection PyMissingTypeHints
def check_if_spam(post):
# if not post.body:
# body = ""
# test, why = FindSpam.test_post(title, body, user_name, post_site,
# is_answer, body_is_summary, owner_rep, post_score)
test, why = FindSpam.test_post(post)
if datahandling.is_blacklisted_user(parsing.get_user_from_url(post.user_url)):
test.append("blacklisted user")
blacklisted_user_data = datahandling.get_blacklisted_user_data(parsing.get_user_from_url(post.user_url))
if len(blacklisted_user_data) > 1:
if blacklisted_user_data[1] == "metasmoke":
blacklisted_by = "the metasmoke API"
else:
blacklisted_by = blacklisted_user_data[1]
blacklisted_post_url = blacklisted_user_data[2]
if blacklisted_post_url:
rel_url = blacklisted_post_url.replace("http:", "", 1)
why += u"\nBlacklisted user - blacklisted for {} (" \
u"https://m.erwaysoftware.com/posts/by-url?url={}) by {}".format(blacklisted_post_url, rel_url,
blacklisted_by)
else:
why += u"\n" + u"Blacklisted user - blacklisted by {}".format(blacklisted_by)
if 0 < len(test):
if datahandling.has_already_been_posted(post.post_site, post.post_id, post.title) \
or datahandling.is_false_positive((post.post_id, post.post_site)) \
or should_whitelist_prevent_alert(post.user_url, test) \
or datahandling.is_ignored_post((post.post_id, post.post_site)) \
or datahandling.is_auto_ignored_post((post.post_id, post.post_site)):
return False, None, "" # Don't repost. Reddit will hate you.
return True, test, why
return False, None, ""
# noinspection PyMissingTypeHints
def check_if_spam_json(json_data):
try:
post = Post(json_data=json_data)
except PostParseError as err:
log('error', 'Parse error {0} when parsing json_data {1!r}'.format(
err, json_data))
return False, '', ''
is_spam, reason, why = check_if_spam(post)
return is_spam, reason, why
# noinspection PyBroadException,PyProtectedMember
def handle_spam(post, reasons, why):
post_url = parsing.to_protocol_relative(parsing.url_to_shortlink(post.post_url))
poster_url = parsing.to_protocol_relative(parsing.user_url_to_shortlink(post.user_url))
shortened_site = post.post_site.replace("stackexchange.com", "SE") # site.stackexchange.com -> site.SE
datahandling.append_to_latest_questions(post.post_site, post.post_id, post.title if not post.is_answer else "")
if len(reasons) == 1 and ("all-caps title" in reasons or
"repeating characters in title" in reasons or
"repeating characters in body" in reasons or
"repeating characters in answer" in reasons or
"repeating words in title" in reasons or
"repeating words in body" in reasons or
"repeating words in answer" in reasons):
datahandling.add_auto_ignored_post((post.post_id, post.post_site, datetime.now()))
if why is not None and why != "":
datahandling.add_why(post.post_site, post.post_id, why)
if post.is_answer and post.post_id is not None and post.post_id is not "":
datahandling.add_post_site_id_link((post.post_id, post.post_site, "answer"), post.parent.post_id)
try:
# If the post is an answer type post, the 'title' is going to be blank, so when posting the
# message contents we need to set the post title to the *parent* title, so the message in the
# chat is properly constructed with parent title instead. This will make things 'print'
# in a proper way in chat messages.
sanitized_title = parsing.sanitize_title(post.title if not post.is_answer else post.parent.title)
prefix = u"[ [SmokeDetector](//goo.gl/eLDYqh) ]"
if GlobalVars.metasmoke_key:
prefix_ms = u"[ [SmokeDetector](//goo.gl/eLDYqh) | [MS](//m.erwaysoftware.com/posts/by-url?url=" + \
post_url + ") ]"
else:
prefix_ms = prefix
# We'll insert reason list later
if not post.user_name.strip() or (not poster_url or poster_url.strip() == ""):
s = u" {{}}: [{}]({}) by a deleted user on `{}`".format(sanitized_title, post_url, shortened_site)
username = ""
else:
s = u" {{}}: [{}]({}) by [{}]({}) on `{}`".format(sanitized_title, post_url,
post.user_name.strip(), poster_url, shortened_site)
username = post.user_name.strip()
Tasks.do(metasmoke.Metasmoke.send_stats_on_post,
post.title_ignore_type, post_url, reasons, post.body, username,
post.user_link, why, post.owner_rep, post.post_score,
post.up_vote_count, post.down_vote_count)
log('debug', GlobalVars.parser.unescape(s).encode('ascii', errors='replace'))
GlobalVars.deletion_watcher.subscribe(post_url)
reason = message = None
for reason_count in range(5, 2, -1): # Try 5 reasons, then 4, then 3
reason = ", ".join(reasons[:reason_count])
if len(reasons) > reason_count:
reason += ", +{} more".format(len(reasons) - reason_count)
reason = reason[:1].upper() + reason[1:] # reason is capitalised, unlike the entries of reasons list
message = prefix_ms + s.format(reason) # Insert reason list
if len(message) <= 500:
break # Problem solved, stop attempting
s = s.format(reason) # Later code needs this variable
if len(message) > 500:
message = (prefix_ms + s)[:500] # Truncate directly and keep MS link
without_roles = tuple("no-" + reason for reason in reasons) + ("site-no-" + post.post_site,)
if set(reasons) - GlobalVars.experimental_reasons == set():
chatcommunicate.tell_rooms(message, ("experimental",),
without_roles, notify_site=post.post_site, report_data=(post_url, poster_url))
else:
chatcommunicate.tell_rooms(message, ("all", "site-" + post.post_site),
without_roles, notify_site=post.post_site, report_data=(post_url, poster_url))
except:
exc_type, exc_obj, exc_tb = sys.exc_info()
excepthook.uncaught_exception(exc_type, exc_obj, exc_tb)