auto bin gifs.

autobin.js

// ==UserScript==
// @name          SO Chat room gif autobinner
// @author        Robert Lemon
// @version       0.0.32
// @namespace     
// @description   make rooms not suffer gifs
// @include       http://chat.stackoverflow.com/rooms/*
// ==/UserScript==
(function(global) {
    "use strict";
    var socket, roomid, destinationid, url, timeout;
    timeout = 30000; // ms before binning.
    destinationid = 61037; // gif bin
    roomid = Number(/\d+/.exec(location)[0]);
    connect();

    function connect() {
        $.post('/ws-auth', fkey({
            roomid: roomid
        })).done(function(data) {
            url = data.url;
            poll();
        });
    }

    function poll() {
        socket = new WebSocket(url + '?l=' + Date.now());
        socket.onmessage = ondata;
        socket.onclose = onclose;
    }

    function ondata(data) {
        var frame = JSON.parse(data.data);
        for (var room in frame) {
            if ('e' in frame[room]) {
                processevent(frame[room].e[0]);
            }
        }
    }

    function onclose() {
        socket.close();
        socket = null;
        setTimeout(poll, 1000 * 10);
    }

    function processevent(evt) {
        if (evt.room_id === roomid && (evt.event_type === 1 || evt.event_type === 2)) {
            var tmp = document.createElement('div');
            tmp.innerHTML = evt.content;
            if (tmp.querySelectorAll('.ob-image').length && tmp.querySelector('img').src.slice(-3).toLowerCase() === 'gif') {
                console.log('found gif', evt);
                var oUrl = tmp.querySelector('img').src;
                setTimeout(function sendmessage() {
                    $.post("/admin/movePosts/" + roomid, fkey({
                        ids: [evt.message_id],
                        to: destinationid
                    })).fail(function() { // sometimes we 409.
                        setTimeout(sendmessage, 3000);
                    }).done(function() {
                        setTimeout(function() { // nasty -- we have to wait for the latest ID to make it back to the DOM
                            var id = [].slice.call(document.querySelectorAll('.user-container.mine .messages .message')).pop().id.match(/(\d+)/)[0];
                            if (!id) return; // so I don't blow up. this should never fail tho.
                            $.post('/messages/' + id, {
                                text: '[gif](' + oUrl + ') from ' + evt.user_name + ' was [moved](http://chat.stackoverflow.com/rooms/' + destinationid +')',
                                fkey: fkey().fkey
                            });
                        }, 2000);
                    });
                }, timeout);
            }
        }
    }
}(window));

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