From cb9043f36f5d99f56036452afe9861d55cacc13d Mon Sep 17 00:00:00 2001
From: Les De Ridder <les@lesderid.net>
Date: Mon, 11 Jul 2016 00:15:26 +0200
Subject: [PATCH] Implement support for some URL proxies

---
 background.js | 38 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

diff --git a/background.js b/background.js
index d6fcb98..caf3256 100644
--- a/background.js
+++ b/background.js
@@ -34,7 +34,9 @@ var blacklist = ["pomf.", "mixtape.moe", "catgirlsare.sexy", "p.fuwafuwa.moe", "
 chrome.pageAction.onClicked.addListener(function(tab) {
 	getCurrentTabUrl(function(url) {
 		getBetterUrl(url, function(betterUrl) {
-			var filename = betterUrl.substr(betterUrl.lastIndexOf("/"));
+			filenameUrl = getProxiedUrl(betterUrl) || betterUrl;
+
+			var filename = filenameUrl.substr(filenameUrl.lastIndexOf("/"));
 			filename = cleanExtension(filename);
 
 			if(filename.indexOf('.') == -1) {
@@ -195,6 +197,35 @@ chrome.webRequest.onBeforeSendHeaders.addListener(
 	["blocking", "requestHeaders"]
 );
 
+function getQueryObject(url) {
+	var queryString = url.substring(url.indexOf('?') + 1);
+	var split = queryString.split('&');
+
+	var query = {};
+	for(var pair of split)
+	{
+		if(pair.indexOf('=') != -1) {
+			var keyValue = /(.*)=(.*)/.exec(pair);
+			query[keyValue[1]] = decodeURIComponent(keyValue[2]);
+		} else {
+			query[pair] = null;
+		}
+	}
+
+	return query;
+}
+
+function getProxiedUrl(url) {
+	var query = getQueryObject(url);
+	for(var key in query) {
+		if(query[key] != null && query[key].indexOf('http') != -1) { //HACK: Use a regex
+			return query[key];
+		}
+	}
+
+	return null;
+}
+
 function cleanExtension(url) {
 	var trailingStrings = ["?", ":orig", ":large", ":small", ":thumb", ":medium"];
 
@@ -228,6 +259,11 @@ function isGfycatUrl(url) {
 }
 
 function isCoolUrl(url, callback) {
+	var proxiedUrl = getProxiedUrl(url);
+	if(proxiedUrl != null) {
+		url = proxiedUrl;
+	}
+
 	url = url.toLowerCase();
 
 	var extensionIndex = url.lastIndexOf('.');