Merge remote-tracking branch 'tool/cf_email_decoder/main'

tool/cf_email_decoder/.gitignore

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+# ---> Emacs
+# -*- mode: gitignore; -*-
+*~
+\#*\#
+/.emacs.desktop
+/.emacs.desktop.lock
+*.elc
+auto-save-list
+tramp
+.\#*
+
+# Org-mode
+.org-id-locations
+*_archive
+
+# flymake-mode
+*_flymake.*
+
+# eshell files
+/eshell/history
+/eshell/lastdir
+
+# elpa packages
+/elpa/
+
+# reftex files
+*.rel
+
+# AUCTeX auto folder
+/auto/
+
+# cask packages
+.cask/
+dist/
+
+# Flycheck
+flycheck_*.el
+
+# server auth directory
+/server/
+
+# projectiles files
+.projectile
+
+# directory configuration
+.dir-locals.el
+
+# network security
+/network-security.data
+
+

tool/cf_email_decoder/LICENSE

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+Creative Commons Legal Code
+
+CC0 1.0 Universal CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES
+NOT PROVIDE LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE
+AN ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS INFORMATION
+ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES REGARDING THE USE
+OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED HEREUNDER, AND DISCLAIMS
+LIABILITY FOR DAMAGES RESULTING FROM THE USE OF THIS DOCUMENT OR THE INFORMATION
+OR WORKS PROVIDED HEREUNDER.
+
+Statement of Purpose
+
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+use of the Work.

tool/cf_email_decoder/README.md

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+# cf\_email\_decoder
+cf\_email\_decoder is a userscript that decodes email addresses that are protected by Cloudflare
+
+## Comparisons
+
+| Encoded                                 | Decoded                                 |
+|-----------------------------------------|-----------------------------------------|
+|![](readme/compare_encoded_namedlink.png)|![](readme/compare_decoded_namedlink.png)|
+|![](readme/compare_encoded_address.png)  |![](readme/compare_decoded_address.png)  |

tool/cf_email_decoder/cfemail.user.js

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+// ==UserScript==
+// @name        Decode Cloudflare-encoded email addresses
+// @namespace   https://codeberg.org/smege1001/cf_email_decoder
+// @match       *://*/*
+// @grant       none
+// @version     1.2.2
+// @author      smege1001
+// ==/UserScript==
+
+/**
+* @license CC0-1.0
+**/
+
+const emailprotectionURLHashRegex = /\/cdn-cgi\/l\/email-protection#([aA0-fF9]*)/;
+const emailprotectionURLNoHashRegex = /\/cdn-cgi\/l\/email-protection/; //hash is stored on data-cfemail
+
+function decodeEmail(hash) { //cloudflare email address decoder
+    var hashArray = []; //split the hash into bytes
+    for (var hAIndex = 0; hAIndex < hash.length; hAIndex += 2) {
+	hashArray.push(parseInt(hash.substring(hAIndex, hAIndex + 2), 16));
+    }
+    
+    var decoded = "";
+    var key = hashArray[0]; //get the decode key
+
+    for (var index = 1; index < hashArray.length; index++) {
+	decoded += String.fromCharCode(hashArray[index] ^ key);
+    }
+    return decoded;
+}
+
+var links = document.querySelectorAll("a"); //get all the links
+
+for (var linksIndex = 0; linksIndex < links.length; linksIndex++) {
+    var link = links[linksIndex];
+    if (emailprotectionURLHashRegex.test(link.href)) {
+	var hash = link.href.match(emailprotectionURLHashRegex)[1];
+	var decodedEmail = decodeEmail(hash);
+	
+	link.href = "mailto:" + decodedEmail; //replace the stupid email protection with just a mailto link
+
+	if (link.getElementsByClassName("__cf_email__").length > 0) {
+	    var linkChild = link.getElementsByClassName("__cf_email__")[0];
+	    linkChild.innerText = decodedEmail;
+
+	    linkChild.removeAttribute("data-cfemail");
+	    linkChild.classList.remove("__cf_email__");
+	    
+	    if (linkChild.getAttribute("class") == "") linkChild.removeAttribute("class");
+	}
+    } else if (emailprotectionURLNoHashRegex.test(link.href) && link.hasAttribute("data-cfemail")) {
+	var hash = link.getAttribute("data-cfemail");
+	var decodedEmail = decodeEmail(hash);
+	
+	link.href = "mailto:" + decodedEmail;
+	link.innerText = decodedEmail; //the inner text is just [email protected]
+	
+	//remove the useless attributes
+	link.removeAttribute("data-cfemail");
+	link.classList.remove("__cf_email__");
+
+	if (link.getAttribute("class") == "") link.removeAttribute("class");
+    }
+}