spam remover reddit april fools

gistfile1.txt

function hash(str) {
  var hash = 0, i, chr, len;
  if (str.length === 0) return hash;
  for (i = 0, len = str.length; i < len; i++) {
    chr   = str.charCodeAt(i);
    hash  = ((hash << 5) - hash) + chr;
    hash |= 0;
  }
  return hash;
};

var spamObject = {};
var spamByUser = {};

$(document).on('DOMNodeInserted', function(e) {
    if (e.target.id != 'robinChatMessageList') {
        $('.robin-message--message', e.target).each(function() {
            var user = $(this).parent().find('.robin-message--from').text();
            var time = new Date().valueOf();
            if (!spamByUser[user]) {
                spamByUser[user] = { count: 0, time: time };
            }
            if (time - spamByUser[user].time > 10000) {
                spamByUser[user].count /= 1.25;
            }
            if (spamByUser[user].count > 5 && time - spamByUser[user].time < 10000) {
                spamByUser[user].time = time;
                spamByUser[user].count += 1;
                $(this).parent().remove();
            } else if (/[\u0080-\uFFFF]|(?:\[Robin Autovoter)/.test($(this).text())) {
                spamByUser[user].count += 1;
                $(this).parent().remove();
            } else {
                var textHash = hash($(this).text());
                if (!spamObject[textHash]) {
                    spamObject[textHash] = 0;
                }
                var count = spamObject[textHash] += 1;
                if (count > 3) {
                    spamByUser[user].count += 1;;
                    $(this).parent().remove();
                }
            }
        });
    }
});

It's removing any unicode (special characters) that people like to post (swastikas, hearts, triangles, faces ...)

Ah I see. So let's say I wanted it to remove everything listed in addition to the phrase "voted for GROW", I'd change the if statement to if (/[\u0080-\uFFFF]|(?:\[Robin Autovoter)|(?:\voted for GROW)/.test($(this).text())) {...} ?

yes... but the current version of the script will remove the redundant "voted for" posts as well.

You should hash the string instead of using it as the key.

Done!

It's getting way too complex for a simple one day script ... but it tracks spamminess of each user now.