Thumbnail für SVGTranslate

// ==UserScript==
// @include       http://toolserver.org/~nikola/svgtranslate.php?*
// ==/UserScript==

function showThumbnail(resp) {
    if(!resp || !resp.query || !resp.query.pages) {
        return;
    }
    resp = resp.query.pages;
    for(var e in resp) {
        resp = resp[e];
        break;
    }
    if(!resp || !resp.imageinfo || !resp.imageinfo[0]) {
        return;
    }
    resp = resp.imageinfo[0];
    if(!resp.thumburl || !resp.thumbwidth || !resp.thumbheight || !resp.descriptionurl) {
        return;
    }
    var a = document.createElement("a");
    a.setAttribute("href", resp.descriptionurl);
    var img = a.appendChild(document.createElement("img"));
    img.setAttribute("src", resp.thumburl);
    img.setAttribute("width", resp.thumbwidth);
    img.setAttribute("height", resp.thumbheight);
    img.style.border = "1px solid #aaa";
    img.style.cssFloat = "right";
    document.body.insertBefore(a, document.forms[0]);
}

(function() {
    var path = /^(?:&|\?)svg=([^&]+)/.exec(window.location.search);
    if(!path) {
        return;
    }
    path = /^(?:https?:\/\/)(?:[^\/]+)\/([^\/]+)\/([^\/]+)\/.+?\/([^\/]+)$/.exec(
            decodeURIComponent(path[1]));
    if(!path) {
        return;
    }
    var parameters = [
            "action=query",
            "prop=imageinfo",
            "iiprop=url",
            "iiurlwidth=600",
            "iiurlheight=600",
            "format=json",
            "callback=showThumbnail",
            "titles=" + "File:" + encodeURIComponent(path[3])];
    var api = encodeURI("http://" + path[2] + "." + path[1] + ".org/w/api.php");
    var script = document.createElement("script");
    script.setAttribute("type", "text/javascript");
    script.setAttribute("encoding", "UTF-8");
    script.setAttribute("defer", "defer");
    script.setAttribute("src", api + "?" + parameters.join("&"));
    document.getElementsByTagName("head")[0].appendChild(script);
})();