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reddit: /r/watchpeopledie censor bypass

Bypasses the Germany block on /r/watchpeopledie

当前为 2019-03-08 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name        reddit: /r/watchpeopledie censor bypass
  3. // @namespace   xk265z9sx26le7jte9rtz5h8su6adofn
  4. // @description Bypasses the Germany block on /r/watchpeopledie
  5. // @license     MIT License
  6. // @match       *://*.reddit.com/r/watchpeopledie/*
  7. // @match       *://*.reddit.com//r/watchpeopledie/*
  8. // @version     1.0
  9. // @grant       none
  10. // @run-at      document-start
  11. // ==/UserScript==
  12.  
  13. /* jshint bitwise: true, curly: true, eqeqeq: true, esversion: 6,
  14. funcscope: false, futurehostile: true, latedef: true, noarg: true,
  15. nocomma: true, nonbsp: true, nonew: true, notypeof: false,
  16. shadow: outer, singleGroups: true, strict: true, undef: true,
  17. unused: true, varstmt: true, browser: true */
  18.  
  19. (function () {
  20. 	"use strict";
  21.  
  22. 	const prefixFrom = /^\/r\/watchpeopledie\//;
  23. 	const prefixTo   = "//r/watchpeopledie/";
  24.  
  25. 	// Returns the rewritten URL, or the original URL
  26. 	// if nothing was changed.
  27. 	const rewriteURL = function (url) {
  28. 		let rewrite;
  29.  
  30. 		try {
  31. 			rewrite = new URL(url);
  32. 			rewrite.pathname = rewrite.pathname.replace(prefixFrom, prefixTo);
  33. 		} catch (e) {
  34. 			return url;
  35. 		}
  36.  
  37. 		return rewrite.href;
  38. 	};
  39.  
  40.  
  41. 	if (prefixFrom.test(location.pathname)) {
  42. 		document.documentElement.hidden = true;
  43. 		location.replace(rewriteURL(location.href));
  44. 	} else {
  45. 		// Generate random string
  46. 		let random = "";
  47.  
  48. 		{
  49. 			const chars = "abcdefghijklmnopqrstuvwxyz0123456789";
  50. 			const charCount = chars.length;
  51.  
  52. 			for (let i = 0; i < 16; i++) {
  53. 				random += chars.charAt(Math.floor(Math.random() * charCount));
  54. 			}
  55. 		}
  56.  
  57. 		const attribName = "data-wpdprocessed-" + random;
  58. 		const selector = "a:not([" + attribName + "]),form:not([" + attribName + "])";
  59.  
  60.  
  61. 		const rewriteElement = function (element) {
  62. 			let tagName = element.tagName.toUpperCase();
  63. 			let attribute;
  64.  
  65. 			if (tagName === "A") {
  66. 				attribute = "href";
  67. 			} else if (tagName === "FORM") {
  68. 				attribute = "action";
  69. 			} else {
  70. 				return;
  71. 			}
  72.  
  73. 			const oldURL = element[attribute];
  74. 			const newURL = rewriteURL(oldURL);
  75.  
  76. 			if (newURL !== oldURL) {
  77. 				element[attribute] = newURL;
  78. 			}
  79.  
  80. 			// Mark this element as done so our selector won't find it again
  81. 			if (!element.hasAttribute(attribName)) {
  82. 				element.setAttribute(attribName, "");
  83. 			}
  84. 		};
  85.  
  86.  
  87. 		const rewriteElementsInside = function (root) {
  88. 			for (const element of root.querySelectorAll(selector)) {
  89. 				rewriteElement(element);
  90. 			}
  91. 		};
  92.  
  93.  
  94. 		window.addEventListener("DOMContentLoaded", () => {
  95. 			rewriteElementsInside(document);
  96.  
  97. 			new MutationObserver((mutations) => {
  98. 				for (const mutation of mutations) {
  99. 					if (mutation.type === "attributes") {
  100. 						// We intentionally don't check for
  101. 						// the special attribute here.
  102. 						// This may be called on elements that
  103. 						// were already rewritten, but then
  104. 						// had their href/action changed.
  105. 						rewriteElement(mutation.target);
  106. 					} else if (mutation.addedNodes.length) {
  107. 						rewriteElementsInside(mutation.target);
  108. 					}
  109. 				}
  110. 			}).observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ["href", "action"] });
  111. 		}, { capture: true });
  112. 	}
  113. })();