From 9a089bce763f1bcc1da3a8d90a1152a39c7d0f5e Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Wed, 24 Aug 2016 11:09:53 +0200
Subject: [PATCH] Fixed encoding issues with pasted code

---
 com.woltlab.wcf/templates/wysiwyg.tpl         |  2 +
 .../redactor2/plugins/WoltLabClean.js         | 59 +++++++++++++++++++
 .../3rdParty/redactor2/plugins/WoltLabCode.js |  4 ++
 .../redactor2/plugins/WoltLabPaste.js         | 13 +++-
 4 files changed, 77 insertions(+), 1 deletion(-)
 create mode 100644 wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabClean.js

diff --git a/com.woltlab.wcf/templates/wysiwyg.tpl b/com.woltlab.wcf/templates/wysiwyg.tpl
index c43230fdea..aa9bf0fda4 100644
--- a/com.woltlab.wcf/templates/wysiwyg.tpl
+++ b/com.woltlab.wcf/templates/wysiwyg.tpl
@@ -14,6 +14,7 @@
 			'{@$__wcf->getPath()}js/3rdParty/redactor2/plugins/WoltLabBlock.js?v={@LAST_UPDATE_TIME}',
 			'{@$__wcf->getPath()}js/3rdParty/redactor2/plugins/WoltLabButton.js?v={@LAST_UPDATE_TIME}',
 			'{@$__wcf->getPath()}js/3rdParty/redactor2/plugins/WoltLabCaret.js?v={@LAST_UPDATE_TIME}',
+			'{@$__wcf->getPath()}js/3rdParty/redactor2/plugins/WoltLabClean.js?v={@LAST_UPDATE_TIME}',
 			'{@$__wcf->getPath()}js/3rdParty/redactor2/plugins/WoltLabCode.js?v={@LAST_UPDATE_TIME}',
 			'{@$__wcf->getPath()}js/3rdParty/redactor2/plugins/WoltLabColor.js?v={@LAST_UPDATE_TIME}',
 			'{@$__wcf->getPath()}js/3rdParty/redactor2/plugins/WoltLabDropdown.js?v={@LAST_UPDATE_TIME}',
@@ -162,6 +163,7 @@
 					'WoltLabAttachment',
 					'WoltLabAutosave',
 					'WoltLabCaret',
+					'WoltLabClean',
 					'WoltLabCode',
 					'WoltLabColor',
 					'WoltLabDropdown',
diff --git a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabClean.js b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabClean.js
new file mode 100644
index 0000000000..383a377908
--- /dev/null
+++ b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabClean.js
@@ -0,0 +1,59 @@
+$.Redactor.prototype.WoltLabClean = function() {
+	"use strict";
+	
+	return {
+		init: function () {
+			var mpOnSet = this.clean.onSet;
+			this.clean.onSet = (function (html) {
+				return mpOnSet.call(this, html.replace(/\u200B/g, ''));
+			}).bind(this);
+			
+			var mpOnSync = this.clean.onSync;
+			this.clean.onSync = (function (html) {
+				var div, replacements = {};
+				if (html.indexOf('<pre') !== -1) {
+					div = elCreate('div');
+					div.innerHTML = html;
+					
+					elBySelAll('pre', div, function (pre) {
+						var uuid = WCF.getUUID();
+						
+						replacements[uuid] = pre.textContent;
+						pre.textContent = uuid;
+					});
+					
+					html = div.innerHTML;
+				}
+				
+				html = mpOnSync.call(this, html);
+				
+				if (div) {
+					div.innerHTML = html;
+					
+					elBySelAll('pre', div, function (pre) {
+						pre.textContent = replacements[pre.textContent];
+					});
+					
+					html = div.innerHTML;
+				}
+				
+				return html;
+			}).bind(this);
+			
+			var mpSavePreFormatting = this.clean.savePreFormatting;
+			this.clean.savePreFormatting = (function (html) {
+				var mpCleanEncodeEntities = this.clean.encodeEntities;
+				this.clean.encodeEntities = function(str) {
+					return WCF.String.escapeHTML(str);
+				};
+				
+				html = mpSavePreFormatting.call(this, html);
+				
+				// revert to original method
+				this.clean.encodeEntities = mpCleanEncodeEntities;
+				
+				return html;
+			}).bind(this);
+		}
+	}
+};
diff --git a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabCode.js b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabCode.js
index 2a96ea4491..3b708e084f 100644
--- a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabCode.js
+++ b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabCode.js
@@ -3,6 +3,10 @@ $.Redactor.prototype.WoltLabCode = function() {
 	
 	return {
 		init: function() {
+			// disable caret position in source mode
+			this.source.setCaretOnShow = function () {};
+			this.source.setCaretOnHide = function (html) { return html; };
+			
 			require(['WoltLabSuite/Core/Ui/Redactor/Code'], (function (UiRedactorCode) {
 				new UiRedactorCode(this);
 			}).bind(this));
diff --git a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabPaste.js b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabPaste.js
index 2c2693794b..c4027eae50 100644
--- a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabPaste.js
+++ b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabPaste.js
@@ -7,7 +7,18 @@ $.Redactor.prototype.WoltLabPaste = function() {
 			
 			var mpInit = this.paste.init;
 			this.paste.init = (function (e) {
-				clipboardData = e.originalEvent.clipboardData.getData('text/plain');
+				var isCode = (this.opts.type === 'pre' || this.utils.isCurrentOrParent('pre')) ? true : false;
+				if (isCode) {
+					clipboardData = e.originalEvent.clipboardData.getData('text/plain');
+					
+					var mpCleanEncodeEntities = this.clean.encodeEntities;
+					this.clean.encodeEntities = (function(str) {
+						// revert to original method
+						this.clean.encodeEntities = mpCleanEncodeEntities;
+						
+						return WCF.String.escapeHTML(str);
+					}).bind(this);
+				}
 				
 				mpInit.call(this, e);
 			}).bind(this);
-- 
2.20.1