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SSL Accelerator

Speculatively performs SSL/TLS handshakes for hovered links to speed up browsing.

目前为 2014-08-22 提交的版本。查看 最新版本。

  1. // ==UserScript==
  2. // @name           SSL Accelerator
  3. // @description    Speculatively performs SSL/TLS handshakes for hovered links to speed up browsing.
  4. // @author         Anon
  5. // @version        0.1.4
  6. // @license        Public domain
  7. // @include        *
  8. // @require        https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js
  9. // @require        https://cdnjs.cloudflare.com/ajax/libs/URI.js/1.11.2/URI.min.js
  10. // @grant          GM_xmlhttpRequest
  11. // @grant          GM_log
  12. // @namespace      https://greasyfork.org/users/4614
  13. // ==/UserScript==
  14.  
  15. var alreadyHandshakedWith = {};
  16. var requestStartTime = {};
  17. var handshakeStartDelayTimerID = 0;
  18.  
  19. var currentHostname = (new URI(window.location.href)).hostname();
  20.  
  21. $("body").on("mouseenter mouseover", "a", function (e)
  22. {
  23. 	var targetURI = new URI(e.target.href);
  24. 	var targetProtocol = targetURI.protocol();
  25. 	var targetHostname = targetURI.hostname();
  26. 	
  27. 	if (targetProtocol != "https" ||  
  28. 		targetHostname == currentHostname)
  29. 	{
  30. 		return;
  31. 	}
  32. 	
  33. 	if (alreadyHandshakedWith[targetHostname])
  34. 	{
  35. 		GM_log("Already handshaked with " + targetHostname);
  36. 		return;
  37. 	}
  38.  
  39. 	clearTimeout(handshakeStartDelayTimerID);
  40. 	
  41. 	handshakeStartDelayTimerID = setTimeout(function ()
  42. 	{
  43. 		GM_log("Handshaking with \"" + targetHostname + "\"..");
  44. 		
  45. 		GM_xmlhttpRequest({
  46. 		
  47. 			method: "HEAD", 
  48. 			
  49. 			url: "https://" + targetHostname, 
  50. 			
  51. 			onload: function() 
  52. 			{
  53. 				GM_log("Successfuly handshaked with \"" + targetHostname + "\" in " + (Date.now() - requestStartTime[targetHostname]) + "ms.");
  54. 				requestStartTime[targetHostname] = undefined;
  55. 			},
  56. 			});
  57. 		
  58. 		requestStartTime[targetHostname] = Date.now();
  59. 		alreadyHandshakedWith[targetHostname] = true;
  60. 	}, 100);
  61. });
  62.  
  63. $("body").on("mouseout", "a", function (e)
  64. {
  65. 	clearTimeout(handshakeStartDelayTimerID);
  66. });