Choses a list of winners by certain criteria
// ==UserScript==
// @name RedditRaffle
// @namespace redditraffle
// @description Choses a list of winners by certain criteria
// @include http://www.reddit.com/r/*/comments/*
// @version 1.4
// @grant GM_xmlhttpRequest
// @grant GM_addStyle
// ==/UserScript==
var link,
url,
winner_count,
author_exclude,
keyword_included,
keyword_excluded,
karma_link,
karma_comment,
age = 0.,
total_comments,
comments = [],
more = [],
more_lock = false,
parse_lock = false,
names = [],
chosen = [],
userinfo,
query_timeout,
connection_count = 0;
function render_results() {
progress.innerHTML = "Rendering:";
var html = [];
html.push("<!doctype html><meta charset=\"utf-8\" /><title>Raffle results</title>" +
"<style>table{overflow:hidden;border:1px solid #d3d3d3;background:#fefefe;" +
"width:70%;margin:5% auto 0;-moz-border-radius:5px;-webkit-border-radius:5px;" +
"border-radius:5px;-moz-box-shadow: 0 0 4px rgba(0, 0, 0, 0.2);" +
"-webkit-box-shadow: 0 0 4px rgba(0, 0, 0, 0.2);}th,td{text-align:center;}" +
"th{padding:14px 22px;text-shadow: 1px 1px 1px #fff;background:#e8eaeb;}" +
"td{border-top:1px solid #e0e0e0;border-right:1px solid #e0e0e0;}" +
"tr:nth-child(odd) td{background:#f6f6f6;}td:last-child{border-right:none;" +
"text-align:left;padding:8px 18px;}</style><table><tr><th>No.</th><th>User</th>" +
"<th>Comment</th></tr>");
var winner_length = Math.min(winner_count, chosen.length);
for(var i = 0; i < winner_length; i++) {
html.push("<tr><td>" + (i + 1) + ".</td><td><a href=\"http://www.reddit.com/user/" +
chosen[i].author + "\">" + chosen[i].author + "</a></td><td>");
html.push(chosen[i].body_html.replace(/</g,'<').replace(/>/g,'>').replace(/&/g,'&'));
html.push("<br /><a href=\"" + url + chosen[i].id + "\">Show</a></td><tr>");
}
html.push("</table>");
progress.innerHTML = "<a href=\"" + URL.createObjectURL(new Blob(html, {type : 'text/html'})) +
"\" target=\"_new\">Show results</a>";
}
function query_users() {
if(more_lock || parse_lock) return;
query_interval = window.setInterval(function() {
if(chosen.length >= winner_count || !comments.length) {
window.clearInterval(query_interval);
render_results();
return;
}
if(connection_count > 10) return;
var comment = comments.splice(Math.floor(Math.random() * comments.length), 1)[0];
if(comment === undefined ||
comment.body.toLowerCase().indexOf(keyword_included) < 0 ||
(keyword_excluded && !(comment.body.toLowerCase().indexOf(keyword_excluded) < 0)) ||
(author_exclude && comment.author === author_exclude) ||
!(names.indexOf(comment.author) < 0))
return;
if(age || karma_link || karma_comment) {
GM_xmlhttpRequest({
method: 'GET',
url: 'http://www.reddit.com/user/' + comment.author + '/about.json',
context: comment,
onload: function(response) {
connection_count--;
userinfo = JSON.parse(response.responseText).data;
if((!age || userinfo.created_utc <= age) &&
userinfo.link_karma >= karma_link &&
userinfo.comment_karma >= karma_comment &&
chosen.length < winner_count &&
names.indexOf(comment.author) < 0) {
names.push(userinfo.name);
chosen.push(response.context);
progress.innerHTML = "Querying Users: " + chosen.length + "/" + winner_count;
}
},
onerror: function(error) {
connection_count--;
console.log(error);
},
});
connection_count++;
} else {
names.push(comment.author);
chosen.push(comment);
progress.innerHTML = "Querying Users: " + chosen.length + "/" + winner_count;
}
}, 100);
}
function add_comment(comment) {
comments.push(comment);
if(comment.replies && comment.replies.kind === "Listing")
parse_listing(comment.replies.data.children);
}
function add_more(children) {
more.push.apply(more, children);
if(!more_lock) parse_more();
}
function parse_more() {
if(!more.length) {
more_lock = false;
query_users();
return;
}
more_lock = true;
var children = more.splice(0, 20);
GM_xmlhttpRequest({
method: 'POST',
url: 'http://www.reddit.com/api/morechildren.json',
headers: {
"Content-Type": "application/x-www-form-urlencoded"
},
data: 'link_id=' + link + '&api_type=json&children=' + children.join(),
onload: function(response) {
parse_listing(JSON.parse(response.responseText).json.data.things);
progress.innerHTML = "Parsing Comments: " + comments.length + "/" + total_comments;
parse_more();
},
enerror: function(error) {
more.push.apply(more, children);
console.log("Error:", error);
parse_more();
}
});
}
function parse_listing(listing) {
var listingLength = listing.length;
for(var child = 0; child < listingLength; child++) {
if (listing[child].kind === 't1')
add_comment(listing[child].data);
else if (listing[child].kind === 't3') {
link = listing[child].data.name;
author_exclude = form.elements.author_exclude.checked ? listing[child].data.author : "";
total_comments = listing[child].data.num_comments;
progress.innerHTML = "Parsing Comments: 0/" + total_comments;
}
else if (listing[child].kind === 'more')
add_more(listing[child].data.children);
}
}
function do_raffle() {
progress.innerHTML = "Parsing Comments:";
winner_count = parseInt(form.elements.winner_count.value) || 20;
keyword_included = form.elements.keyword_included.value.toLowerCase();
keyword_excluded = form.elements.keyword_excluded.value.toLowerCase();
karma_link = parseInt(form.elements.karma_link.value) || 0;
karma_comment = parseInt(form.elements.karma_comment.value) || 0;
if(form.elements.age_days.value ||
form.elements.age_month.value ||
form.elements.age_years.value) {
var date = new Date();
date.setDate(date.getDate() - (parseInt(form.elements.age_days.value) || 0));
date.setMonth(date.getMonth() - (parseInt(form.elements.age_month.value) || 0));
date.setFullYear(date.getFullYear() - (parseInt(form.elements.age_years.value) || 0));
age = date.getTime()/1000;
}
url = window.location.href;
if(!(url.indexOf("?") < 0)) {
url = url.substring(0, url.indexOf("?"));
}
parse_lock = true;
GM_xmlhttpRequest({
method: 'POST',
url: url + '.json',
headers: {
"Content-Type": "application/x-www-form-urlencoded"
},
data: 'limit=500',
onload: function(response) {
var things = JSON.parse(response.responseText),
thingsLength = things.length
for(var thing = 0; thing < thingsLength; thing++)
if (things[thing].kind === 'Listing')
parse_listing(things[thing].data.children);
parse_lock = false;
query_users();
},
});
}
GM_addStyle("#raffle_form input[type=text]{\
width:265px;\
border:1px solid #DBDADA;\
-moz-border-radius:2px;\
-webkit-border-radius:2px;\
-o-border-radius:2px;\
-ms-border-radius:2px;\
-khtml-border-radius:2px;\
border-radius:2px;\
font-size:14px;\
font-style:italic;\
padding:4px\
}");
var spacer = document.createElement("div");
spacer.classList.add("spacer");
spacer.innerHTML = "<div class=\"sidecontentbox \">\
<div class=\"title\"><h1>Raffle</h1></div>\
<form id=\"raffle_form\">\
<ul class=\"content\">\
<li><input type=\"text\" placeholder=\"Number of Winners\" name=\"winner_count\" /></li>\
<li><input type=\"text\" placeholder=\"Comments containing\" name=\"keyword_included\" /></li>\
<li><input type=\"text\" placeholder=\"Comments not containing\" name=\"keyword_excluded\" /></li>\
<li><input type=\"text\" placeholder=\"Required Link Karma\" name=\"karma_link\" /></li>\
<li><input type=\"text\" placeholder=\"Required Comment Karma\" name=\"karma_comment\" /></li>\
<li><input type=\"text\" placeholder=\"Age in Days\" name=\"age_days\" /></li>\
<li><input type=\"text\" placeholder=\"Age in Months\" name=\"age_month\" /></li>\
<li><input type=\"text\" placeholder=\"Age in Years\" name=\"age_years\" /></li>\
<li>\
<button class=\"save\" type=\"button\">Raffle</button>\
<input type=\"checkbox\" name=\"author_exclude\" id=\"author_exclude\" checked=\"checked\"/>\
<label for=\"author_exclude\">Exclude Author</label>\
</li>\
<li><span id=\"raffle_progress\"></span></li>\
</ul>\
</form>\
</div>";
var form = spacer.querySelector("form#raffle_form"),
progress = spacer.querySelector("span#raffle_progress");
document.querySelector("div.side").appendChild(spacer);
form.querySelector("button").addEventListener("click", do_raffle, true);