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Replace Missing Favicon

Add default favicon for any sites that don't have a favicon

当前为 2017-05-11 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name        Replace Missing Favicon
  3. // @namespace   iFantz7E.ReplaceMissingFavicon
  4. // @description Add default favicon for any sites that don't have a favicon
  5. // @version     0.10
  6. // @icon        http://i.imgur.com/AI5VsOE.png
  7. // @include     *
  8. // @run-at      document-start
  9. // @grant       GM_xmlhttpRequest
  10. // @connect     self
  11. // @copyright   2017, 7-elephant
  12. // ==/UserScript==
  13.  
  14. (function ()
  15. {
  16. 	"use strict";
  17. 	// jshint multistr:true
  18.  
  19. function attachOnReady(callback) 
  20. {
  21. 	document.addEventListener("DOMContentLoaded", function (e) 
  22. 	{
  23. 		callback();
  24. 	});
  25. }
  26.  
  27. function getFavicon()
  28. {
  29.     var favicon = null;
  30.     var elesLink = document.querySelectorAll("link");
  31.     for (var i = 0; i < elesLink.length; i++)
  32.     {
  33. 		var attrRel = elesLink[i].getAttribute("rel");
  34.         if((attrRel === "icon") || (attrRel == "shortcut icon"))
  35.         {
  36.             favicon = elesLink[i].getAttribute("href");
  37. 			break;
  38.         }
  39.     }
  40.     return favicon;        
  41. }
  42.  
  43. function main() 
  44. {	
  45. 	// Default icon from https://s2.googleusercontent.com/s2/favicons?domain=sample
  46. 	var iconDefault = "data:image/png;base64,\
  47. iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAABs0lEQVR4AWL4//8/RRjO8Iucx+noO0O2qmlbUEnt5r3Juas+\
  48. hsQD6KaG7dqCKPgx72Pe9GIY27btZBrbtm3btm0nO12D7tVXe63jqtqqU/iDw9K58sEruKkngH0DBljOE+T/qqx/Ln718RZO\
  49. Fasxyd3XRbWzlFMxRbgOTx9QWFzHtZlD+aqLb108sOAIAai6+NbHW7lUHaZkDFJt+wp1DG7R1d0b7Z88EOL08oXwjokcOvvU\
  50. xYMjBFCamWP5KjKBjKOpZx2HEPj+Ieod26U+dpg6lK2CIwTQH0oECGT5eHj+IgSueJ5fPaPg6PZrz6DGHiGAISE7QPrIvIKV\
  51. rSvCe2DNHSsehIDatOBna/+OEOgTQE6WAy1AAFiVcf6PhgCGxEvlA9QngLlAQCkLsNWhBZIDz/zg4ggmjHfYxoPGEMPZECW+\
  52. zjwmFk6Ih194y7VHYGOPvEYlTAJlQwI4MEhgTOzZGiNalRpGgsOYFw5lEfTKybgfBtmuTNdI3MrOTAQmYf/DNcAwDeycVjRO\
  53. gZFt18gMso6V5Z8JpcEk2LPKpOAH0/4bKMCAYnuqm7cHOGHJTBRhAEJN9d/t5zCxAAAAAElFTkSuQmCC";
  54. 	
  55. 	if (!getFavicon())
  56. 	{
  57. 		GM_xmlhttpRequest(
  58. 		{
  59. 			url: "/favicon.ico",
  60. 			method: "HEAD",
  61. 			onload: function(response)
  62. 			{
  63. 				if (response.status !== 200)
  64. 				{
  65. 					//console.log("Favicon: Not found");
  66. 					
  67. 					var ele = document.createElement("link");
  68. 					ele.setAttribute("rel", "icon");
  69. 					ele.setAttribute("type", "image/png");
  70. 					ele.setAttribute("href", iconDefault);
  71. 					
  72. 					document.head.appendChild(ele);
  73. 				}
  74. 			}
  75. 		});
  76. 	}
  77. }
  78.  
  79. attachOnReady(main);
  80. 	
  81. })();
  82.  
  83. // End