text: import sys
  from threading import Thread
  from findspam import FindSpam
  import datahandling
  from globalvars import GlobalVars
  from datetime import datetime
  import parsing
  import metasmoke
  import deletionwatcher
  import excepthook
  import regex
  import time
  import classes
  from helpers import log
  
  
  # 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 should_reasons_prevent_tavern_posting(reasons):
      reasons_comparison = [r for r in set(reasons) if r not in GlobalVars.non_tavern_reasons]
      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:
              message_url = 'http:' + 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,
                                                                                          message_url)
              else:
                  why += u"\n" + u"Blacklisted user - blacklisted by {}".format(message_url)
      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):
      post = classes.Post(json_data=json_data)
      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))
      reason = ", ".join(reasons[:5])
      if len(reasons) > 5:
          reason += ", +{} more".format(len(reasons) - 5)
      reason = reason[:1].upper() + reason[1:]  # reason is capitalised, unlike the entries of reasons list
      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.post_id)
      try:
          post.title = parsing.escape_special_chars_in_title(post.title)
          if post.is_answer:
              # 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 = regex.sub('(https?://|\n)', '', post.parent.title)
          else:
              sanitized_title = regex.sub('(https?://|\n)', '', post.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
  
          if not post.user_name.strip() or (not poster_url or poster_url.strip() == ""):
              s = u" {}: [{}]({}) by a deleted user on `{}`".format(reason, sanitized_title.strip(), post_url,
                                                                    shortened_site)
              username = ""
          else:
              s = u" {}: [{}]({}) by [{}]({}) on `{}`".format(reason, sanitized_title.strip(), post_url,
                                                              post.user_name.strip(), poster_url, shortened_site)
              username = post.user_name.strip()
  
          t_metasmoke = Thread(name="metasmoke send post",
                               target=metasmoke.Metasmoke.send_stats_on_post,
                               args=(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))
          t_metasmoke.start()
  
          log('debug', GlobalVars.parser.unescape(s).encode('ascii', errors='replace'))
          if time.time() >= GlobalVars.blockedTime["all"]:
              datahandling.append_to_latest_questions(post.post_site, post.post_id, post.title)
              if reason not in GlobalVars.experimental_reasons:
                  if time.time() >= GlobalVars.blockedTime[GlobalVars.charcoal_room_id]:
                      chq_pings = datahandling.get_user_names_on_notification_list("stackexchange.com",
                                                                                   GlobalVars.charcoal_room_id,
                                                                                   post.post_site,
                                                                                   GlobalVars.wrap)
                      chq_msg = prefix + s
                      chq_msg_pings = prefix + datahandling.append_pings(s, chq_pings)
                      chq_msg_pings_ms = prefix_ms + datahandling.append_pings(s, chq_pings)
                      msg_to_send = chq_msg_pings_ms if len(chq_msg_pings_ms) <= 500 else chq_msg_pings \
                          if len(chq_msg_pings) <= 500 else chq_msg[0:500]
                      GlobalVars.charcoal_hq.send_message(msg_to_send)
                  if not should_reasons_prevent_tavern_posting(reasons) \
                          and post.post_site not in GlobalVars.non_tavern_sites \
                          and time.time() >= GlobalVars.blockedTime[GlobalVars.meta_tavern_room_id]:
                      tavern_pings = datahandling.get_user_names_on_notification_list("meta.stackexchange.com",
                                                                                      GlobalVars.meta_tavern_room_id,
                                                                                      post.post_site, GlobalVars.wrapm)
                      tavern_msg = prefix + s
                      tavern_msg_pings = prefix + datahandling.append_pings(s, tavern_pings)
                      tavern_msg_pings_ms = prefix_ms + datahandling.append_pings(s, tavern_pings)
                      msg_to_send = tavern_msg_pings_ms if len(tavern_msg_pings_ms) <= 500 else tavern_msg_pings \
                          if len(tavern_msg_pings) <= 500 else tavern_msg[0:500]
                      t_check_websocket = Thread(name="deletionwatcher post message if not deleted",
                                                 target=deletionwatcher.DeletionWatcher.post_message_if_not_deleted,
                                                 args=((post.post_id, post.post_site,
                                                        "answer" if post.is_answer else "question"),
                                                       post_url, msg_to_send, GlobalVars.tavern_on_the_meta))
                      t_check_websocket.daemon = True
                      t_check_websocket.start()
                  if post.post_site == "stackoverflow.com" and reason not in GlobalVars.non_socvr_reasons \
                          and time.time() >= GlobalVars.blockedTime[GlobalVars.socvr_room_id]:
                      socvr_pings = datahandling.get_user_names_on_notification_list("stackoverflow.com",
                                                                                     GlobalVars.socvr_room_id,
                                                                                     post.post_site,
                                                                                     GlobalVars.wrapso)
                      socvr_msg = prefix + s
                      socvr_msg_pings = prefix + datahandling.append_pings(s, socvr_pings)
                      socvr_msg_pings_ms = prefix_ms + datahandling.append_pings(s, socvr_pings)
                      msg_to_send = socvr_msg_pings_ms if len(socvr_msg_pings_ms) <= 500 else socvr_msg_pings \
                          if len(socvr_msg_pings) <= 500 else socvr_msg[0:500]
                      GlobalVars.socvr.send_message(msg_to_send)
  
              for specialroom in GlobalVars.specialrooms:
                  sites = specialroom["sites"]
                  if post.post_site in sites and reason not in specialroom["unwantedReasons"]:
                      room = specialroom["room"]
                      if room.id not in GlobalVars.blockedTime or time.time() >= GlobalVars.blockedTime[room.id]:
                          room_site = room._client.host
                          room_id = int(room.id)
                          room_pings = datahandling.get_user_names_on_notification_list(room_site, room_id,
                                                                                        post.post_site, room._client)
                          room_msg = prefix + s
                          room_msg_pings = prefix + datahandling.append_pings(s, room_pings)
                          room_msg_pings_ms = prefix_ms + datahandling.append_pings(s, room_pings)
                          msg_to_send = room_msg_pings_ms if len(room_msg_pings_ms) <= 500 else room_msg_pings \
                              if len(room_msg_pings) <= 500 else room_msg[0:500]
                          specialroom["room"].send_message(msg_to_send)
      except:
          exc_type, exc_obj, exc_tb = sys.exc_info()
          excepthook.uncaught_exception(exc_type, exc_obj, exc_tb)
  
  
  def handle_user_with_all_spam(user, why):
      user_id = user[0]
      site = user[1]
      tab = "activity" if site == "stackexchange.com" else "topactivity"
      s = "[ [SmokeDetector](//git.io/vgx7b) ] All of this user's posts are spam: [user {} on {}](//{}/users/{}?tab={})" \
          .format(user_id, site, site, user_id, tab)
      log('debug', GlobalVars.parser.unescape(s).encode('ascii', errors='replace'))
      datahandling.add_why_allspam(user, why)
      if time.time() >= GlobalVars.blockedTime[GlobalVars.charcoal_room_id]:
          GlobalVars.charcoal_hq.send_message(s)
      for specialroom in GlobalVars.specialrooms:
          room = specialroom["room"]
          if site in specialroom["sites"] and (room.id not in GlobalVars.blockedTime or
                                               time.time() >= GlobalVars.blockedTime[room.id]):
              room.send_message(s)
  