Automatically promotes Tumblr image links to raw HD versions
// ==UserScript==
// @name Tumblr Images to HD Redirector
// @namespace TumblrImgReszr
// @description Automatically promotes Tumblr image links to raw HD versions
// @version 2.5
// @author Kai Krause <kaikrause95@gmail.com>
// @include /^https?://.+\.media\.tumblr\.com.+?(jpe?g|png|bmp|gif)/
// @grant GM_xmlhttpRequest
// @connect tumblr.com
// @connect s3.amazonaws.com
// @run-at document-start
// ==/UserScript==
var imageSizes = ['raw', '1280', '540', '500', '400', '250', '100'];
function checkSize(i) {
i = i || 0;
var loc = location.origin + location.pathname;
var imageSize = loc.match(/\d+(?=.\w+$)/)[0];
var imageType = "." + loc.match(/[^.]*$/)[0];
var imageSizeType = imageSize + imageType;
// Do not redirect if already HD
if (i > imageSizes.length || parseInt(imageSize) >= parseInt(imageSizes[i]) || loc.includes('_raw')) {
document.body.style.cursor = "";
return;
}
document.body.style.cursor = "progress"; // Show loading cursor
// Create the HD image url
var imageNextSizeType = imageSizes[i] + imageType;
if (imageSizes[i] == 'raw') {
loc = loc.replace(/[^/]*media.tumblr.com/, 's3.amazonaws.com/data.tumblr.com');
loc = loc.replace(imageSizeType, imageNextSizeType);
} else {
loc = loc.replace(imageSizeType, imageNextSizeType);
}
// If the URL is HTTP, change it to HTTPS
if (!loc.startsWith('https://')) {
loc = loc.replace(/^http/, 'https');
}
// Check that the HD image exists, then redirect to it
GM_xmlhttpRequest({
url: loc,
method: 'HEAD',
onload: function(response) {
if (response.status == '200') {
location.replace(loc);
} else {
checkSize(i+1);
}
},
onerror: function (error) {
checkSize(i+1);
}
});
}
checkSize();