Mass mirror EH torrents
// ==UserScript==
// @name EHMassTorrent
// @namespace http://tampermonkey.net/
// @version 0.1
// @description Mass mirror EH torrents
// @author ez
// @match https://e-hentai.org/?*f_search=*
// @grant none
// ==/UserScript==
(function() {
var slack = 0.9;
var seedtrump = 1.5;
var minseeds = 2;
var maxseeds = 15;
function gid(n) {
return document.getElementById(n);
}
function gcls(n) {
return document.getElementsByClassName(n);
}
function fget(n, def) {
var v = gid(n).value || sessionStorage.getItem(n) || def;
if (def !== undefined) {
gid(n).value = v;
}
sessionStorage.setItem(n, v);
return v;
}
function fset(n, v) {
if (v === undefined) {
v = fget(n);
}
gid(n).value = v;
sessionStorage.setItem(n,v);
}
document.getElementById('dms').insertAdjacentHTML('afterbegin',`
<table>
<tr>
<td>Next delay<td><input type=text id="nd" style="width: 30px;"></input>
<td>Num pages<td><input type=text id="np" style="width: 30px;"></input>
<td>Pos<td><input type=text id="pos" style="width: 30px;"></input>/<td id=pcnt></td>
<td><button id="mstart">Start</button>
<td id=stat>
</table>`);
fget('nd', 8000);
fget('np', 0);
fget('pos', 0);
var isRunning = false;
var startPos = 0;
gid('mstart').addEventListener('click', function() {
if (!isRunning) {
startRunning();
} else {
stopRunning();
}
});
var children = gcls('gldown');
gid('pcnt').innerText = children.length;
var stat = gid('stat');
var pos;
var prev;
function startRunning() {
sessionStorage.setItem('forceStart', 0);
pos = fget('pos', 0);
function progress() {
if (prev) {
prev.style.backgroundColor = '';
}
if (!isRunning) {
return;
}
var dl = children[pos];
var np = fget('np')|0;
// we're out. browse to next page, or stop if numpages goes to 0
if (np <= 0 || dl === undefined) {
var newLoc = document.getElementsByClassName('ptt')[0].firstChild.firstChild.lastChild.firstChild.href;
if (np <= 1 || !newLoc) {
fset('np', 0);
fset('pos', 0);
stat.innerText = "No more pages requested, halted.";
stopRunning();
return;
}
stat.innerText = "About to jump to next next page...";
setTimeout(function() {
fset('np', np-1);
fset('pos', 0);
sessionStorage.setItem('forceStart', 1);
document.location = newLoc;
}, Math.random() * (fget('nd')|0) + (fget('nd')|0));
return;
}
var parent = dl.parentNode.parentNode;
prev = parent;
parent.style.backgroundColor = '#886';
var url = dl.firstChild.href;
if (!url || localStorage.getItem(url)=="1") {
console.log(url + " is already known or has no torrents; skipping");
pos++;
fset('pos',pos);
setTimeout(progress, 0);
return;
}
var iframe = document.createElement('iframe');
iframe.src = url;
iframe.style.visibility = "hidden";
iframe.style.width = 0;
iframe.style.height = 0;
iframe.style.border = "0 none";
iframe.style.position = "absolute";
iframe.onload = function() {
stat.innerText = "Loaded iframe, fetching torrent";
var forms = iframe.contentDocument.getElementsByTagName('form');
var tuples = [];
var best = -1;
var bestseeds = 0;
var i;
for (i = 0; i < forms.length-1; i++) {
var td = forms[i].getElementsByTagName('td');
var dfunc = td[8].getElementsByTagName('a')[0].href;
var seeds = td[3].innerText.split(':')[1].substr(1)|0;
var size = eval(td[1].innerText.split(':')[1].replace('GB', '*1024*1024*1024').replace('MB', '*1024*1024').replace('KB','*1024').replace('B',''));
tuples.push([dfunc,seeds,size]);
// found larger torrent with some seeds
if (seeds >= minseeds && (best == -1 || size > tuples[best][2])) {
best = i;
}
if (tuples[bestseeds][1] < seeds) {
bestseeds = i;
}
}
// hm, the torrent is seed starved, so assign whatever we can have
if (best == -1) {
best = bestseeds;
}
var best2 = best;
if (best != -1) {
var bestt = tuples[best];
// do this only if we're short on seeds
if (bestt[1] < maxseeds) {
// now scan tuples again. if they're smaller by 'slack' (90%), but have more seeds 'seedtrump' (150%) of best torrent, choose that one instead
for (i = 0; i < tuples.length; i++) {
if (tuples[i][2] > bestt[2] * slack && tuples[i][1] > bestt[1] * seedtrump) {
// anything with most seeds fitting the base criteria above
if (tuples[i][1] > tuples[best2][1]) {
console.log("TRUMP",best2,"=>",i);
best2 = i;
}
}
}
}
// best2 is our final selection
localStorage.setItem(url, "1");
console.log("Downloading " + url + " torrent index " + best2);
var durl = tuples[best2][0];
document.location = durl;
}
document.body.removeChild(iframe);
pos++;
fset('pos',pos);
setTimeout(progress, Math.random() * (fget('nd')|0) * 2 + 300);
}
stat.innerText = "Loading iframe for " + url;
document.body.appendChild(iframe);
};
isRunning = true;
gid('mstart').innerText = "Stop";
progress();
}
function stopRunning() {
sessionStorage.getItem('forceStart', 0)
isRunning = false;
gid('mstart').innerText = "Start";
}
// Triggered by our forced 'next' click
if (sessionStorage.getItem('forceStart')==1) {
startRunning();
}
})();