Taringa! Hide Photos in comments

TaringaHidePhotos.user.js

// ==UserScript==
// @name        Oculta Fotos en comentarios
// @namespace   mangareader
// @description Oculta fotos en los comentarios
// @include     http://www.taringa.net/posts/*
// @include     http://www.taringa.net/post/*
// @exclude     http://www.taringa.net/posts/editar/*
// @version     1
// @grant       none
// ==/UserScript==

window.initOculta = function (event) {
	event.preventDefault();
	var url =  prompt('Ingresa la url de la imagen');
	if(url){
		var imgEl = new Image();
		imgEl.onerror = function() {alert('La imagen no se pudo cargar'); this.parentNode.removeChild(this); };
		imgEl.onload = function () {
			if (imgEl.naturalHeight>1000  || imgEl.naturalWidth>1000) {
				alert('La imagen es demasiado grande');
			}else{
				var r = confirm('¿Es esta la imagen que quieres ocultar?'); 
				this.parentNode.removeChild(this);
				if (r) {modGif(url); }
			}
		};
		imgEl.setAttribute('style','position:fixed;top:0;right:0;bottom:0;left:0;margin:auto;border:30px solid #888;max-width:80%;max-height:80%;z-index:10000;border-style:double;' );
		document.body.appendChild(imgEl);
		imgEl.src = url;
	}else{alert('url no valida');}

window. modGif = function (url) { // Formato de gif: http://www.matthewflickinger.com/lab/whatsinagif/bits_and_bytes.asp
	var gifBytes = [71,73,70,56,57,97,29,0,25,0,162,7,0,69,69,69,255,234,0,255,180,0,255,204,0,255,255,179,255,253,17,254,157,0,255,255,255,33,255,11,78,69,84,83,67,65,80,69,50,46,48,3,1,0,0,0,33,249,4,9,6,0,7,0,44,0,0,0,0,29,0,25,0,0,3,131,120,186,220,11,46,74,7,4,100,224,78,89,245,233,219,4,42,99,200,89,153,101,114,157,165,174,148,32,183,30,252,84,242,108,159,122,152,253,145,78,141,2,32,24,9,131,12,230,181,41,18,10,133,128,116,96,184,148,68,198,168,116,75,77,13,131,132,204,246,23,72,50,155,207,241,118,90,133,21,163,98,169,120,112,70,203,1,99,60,253,27,212,174,215,123,110,3,127,127,93,54,0,131,119,115,73,59,136,131,120,99,134,141,3,148,149,148,109,59,36,56,50,85,124,110,63,158,153,162,11,9,0,33,249,4,9,6,0,7,0,44,0,0,0,0,29,0,25,0,0,3,131,120,186,220,11,46,74,7,4,100,224,78,89,245,233,219,4,42,99,200,89,153,101,114,157,165,174,148,32,183,30,252,84,242,108,159,122,152,253,145,78,141,2,32,24,9,131,12,230,181,41,18,10,133,128,116,96,184,148,68,198,168,116,75,77,13,131,79,237,118,122,197,70,51,219,95,23,86,20,7,0,227,1,211,71,72,195,165,25,249,55,40,70,227,1,122,108,3,99,132,1,107,130,133,83,73,59,128,131,127,121,85,59,31,3,148,141,148,145,146,31,56,50,85,123,108,63,158,153,162,7,9,0,33,249,4,9,6,0,7,0,44,0,0,0,0,29,0,25,0,0,3,127,120,186,220,11,46,74,7,4,100,224,78,89,245,233,219,4,42,99,200,89,153,101,114,157,165,174,148,32,183,30,252,84,242,108,159,250,30,117,53,81,38,211,40,133,50,132,36,97,64,252,188,76,128,100,161,16,168,14,12,169,32,71,90,237,6,174,205,85,148,234,237,50,109,227,178,23,12,75,103,186,195,193,243,72,40,3,214,243,13,128,28,120,87,51,114,90,63,3,106,107,88,104,132,133,3,103,136,137,107,108,59,0,139,139,67,0,135,62,31,45,2,88,130,109,149,62,9,0]; //menos el ultimo(59)
	var url = 'img='+url;
	url = btoa(url); //Codificar en base 64
	var Str = url.match(/.{1,255}/g); // Dividir en strings de 255 caracteres
	gifBytes.push(0x21); gifBytes.push(0xFE); // cabecera de bloque de comentario
	for (var i = 0; i < Str.length; i++) { // Por cada substring crear el sub-bloque de comentario
		gifBytes.push(Str[i].length); // cabecera de sub-bloque de comentario (longitud del sub-bloque)
		for (var j = 0; j < Str[i].length; j++) { gifBytes.push(Str[i].charCodeAt(j));}//Bytes del sub-bloque
	}
	gifBytes.push(0x00,0x3B); // Cierra el bloque con un byte 00 y el gif con un byte 3B
	var byteAr = new Uint8Array(gifBytes);
	var blob = new Blob([byteAr.buffer],{type : 'application/octet-stream'});
	
	//Upload
	var fileName = ('0000'+Math.random().toString(36).replace('.', '')).substr(-6)+'.gif';

	var fd = new FormData();
	fd.append('Filename', fileName);
	fd.append('fileext', '*.gif;*.jpeg;*.jpg;*.png');
	fd.append('folder', window.location.pathname.match(/.*\//));
	fd.append('file', blob, fileName);
	fd.append('Upload', 'Submit Query');

	if (kn3UploadUrl) {
		var ajax = new XMLHttpRequest();
		ajax.open('POST', decodeURIComponent(kn3UploadUrl));
		ajax.onload = function () {
			var url = JSON.parse(ajax.response).error;
			if (!url.match(/^http/)) {
				alert('Error al subir y procesar el emoticon\nKn3.net dice:\n'+url+'\n\nTrata otra vez');
			}else {
				var bb = '[img='+url+']';
				var textArea = document.querySelector('#cont_comm textarea');
				var start = textArea.selectionStart, end = textArea.selectionEnd;
				textArea.value =  textArea.value.substring(0,start) + bb + textArea.value.substring(end,tALen);
			}
		};
		ajax.onerror = function () {alert('No se pudo conectar con el servidor de imagenes kn3.net');};
		ajax.send(fd);
	}else{alert('No se pudo encontrar la url para subir el emoticon')}
	
}
// Agregar boton
var li = document.createElement('li');
li.classList.add('markItUpButton');
li.setAttribute('style','background-color:black!important;height:30px;width:20px');

var a = document.createElement('a');
a.title = "Insertar foto oculta";
a.href = "";
a.setAttribute('onclick','initOculta(event)');

li.appendChild(a);
document.querySelector('.markItUpHeader ul').appendChild(li);