whatimg url upload

whatcd_upload.js

/* this scripts needs to run on whatimg.com */
if (document.location.pathname == '/upload.php'
    && document.location.hash == '#whatcd-script') {
    document.addEventListener('DOMContentLoaded', function () {
	window.parent.postMessage(document.getElementsByClassName('input_field')[0].value, "*");
    });
}

whatimg.upload.js

/* this script needs to run on what.cd */
if (['/upload.php', '/torrents.php', '/requests.php', '/artist.php'].indexOf(document.location.pathname) !== -1) {
    document.addEventListener('DOMContentLoaded', function () {
	var sendImage = function (url) {
	    var iframe = document.createElement('iframe');
	    iframe.width = 0;
	    iframe.height = 0;
	    document.body.appendChild(iframe);
	    iframe.contentWindow.document.write( '<form id="whatimg_form" name="whatimg_form" action="https://whatimg.com/upload.php#whatcd-script" method="POST">\
<input type="hidden" name="userfile[]" value="' + url + '"/>\
<input type="hidden" name="upload_to" value="0" />\
<input type="hidden" name="upload_type" value="url-standard" />\
</form>\
<script type="text/javascript">\
document.whatimg_form.submit();\
</script>');

	};

        var image = document.querySelectorAll('input[name="image"]')[0];
        if (typeof image === 'undefined') return;

	var btn = document.createElement('input');
	btn.type = 'submit';
	btn.value = 'WhatIMG';
	btn.id = 'wimg_submit';

	btn.addEventListener('click', function (e) {
	    e.preventDefault();
	    msg.textContent = 'Uploading...';
	    sendImage(image.value);
	});

	image.parentNode.insertBefore(btn, image.nextSibling);


	var msg = document.createElement('span');
	msg.id = 'whatimg_msg';
	msg.style.marginLeft = '2em';
	image.parentNode.insertBefore(msg, image.nextSibling.nextSibling);


	var recvMessage = function (e) {
	    if (e.origin == 'https://whatimg.com') {
		msg.textContent = '';
		image.value = e.data;
	    }
	};

	window.addEventListener('message', recvMessage, false);
    });
}