From de76ce669729aa6875543619d8ab22e4ea72b7bc Mon Sep 17 00:00:00 2001
From: XhmikosR <xhmikosr@gmail.com>
Date: Fri, 3 Sep 2021 13:20:45 +0300
Subject: [PATCH] Minor refactoring

Rename variables and remove a temporary one
---
 js/src/util/focustrap.js |  6 +-----
 js/src/util/sanitizer.js | 35 +++++++++++++++++------------------
 2 files changed, 18 insertions(+), 23 deletions(-)

diff --git a/js/src/util/focustrap.js b/js/src/util/focustrap.js
index f1433c219fcb..d51942246674 100644
--- a/js/src/util/focustrap.js
+++ b/js/src/util/focustrap.js
@@ -69,11 +69,7 @@ class FocusTrap {
     const { target } = event
     const { trapElement } = this._config
 
-    if (
-      target === document ||
-      target === trapElement ||
-      trapElement.contains(target)
-    ) {
+    if (target === document || target === trapElement || trapElement.contains(target)) {
       return
     }
 
diff --git a/js/src/util/sanitizer.js b/js/src/util/sanitizer.js
index 467dbf96a0e3..11b28a9d9da0 100644
--- a/js/src/util/sanitizer.js
+++ b/js/src/util/sanitizer.js
@@ -5,7 +5,7 @@
  * --------------------------------------------------------------------------
  */
 
-const uriAttrs = new Set([
+const uriAttributes = new Set([
   'background',
   'cite',
   'href',
@@ -32,22 +32,22 @@ const SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^#&/:?]*(?:[#/?]|
  */
 const DATA_URL_PATTERN = /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[\d+/a-z]+=*$/i
 
-const allowedAttribute = (attr, allowedAttributeList) => {
-  const attrName = attr.nodeName.toLowerCase()
+const allowedAttribute = (attribute, allowedAttributeList) => {
+  const attributeName = attribute.nodeName.toLowerCase()
 
-  if (allowedAttributeList.includes(attrName)) {
-    if (uriAttrs.has(attrName)) {
-      return Boolean(SAFE_URL_PATTERN.test(attr.nodeValue) || DATA_URL_PATTERN.test(attr.nodeValue))
+  if (allowedAttributeList.includes(attributeName)) {
+    if (uriAttributes.has(attributeName)) {
+      return Boolean(SAFE_URL_PATTERN.test(attribute.nodeValue) || DATA_URL_PATTERN.test(attribute.nodeValue))
     }
 
     return true
   }
 
-  const regExp = allowedAttributeList.filter(attrRegex => attrRegex instanceof RegExp)
+  const regExp = allowedAttributeList.filter(attributeRegex => attributeRegex instanceof RegExp)
 
   // Check if a regular expression validates the attribute.
   for (let i = 0, len = regExp.length; i < len; i++) {
-    if (regExp[i].test(attrName)) {
+    if (regExp[i].test(attributeName)) {
       return true
     }
   }
@@ -100,25 +100,24 @@ export function sanitizeHtml(unsafeHtml, allowList, sanitizeFn) {
 
   const domParser = new window.DOMParser()
   const createdDocument = domParser.parseFromString(unsafeHtml, 'text/html')
-  const allowlistKeys = Object.keys(allowList)
   const elements = [].concat(...createdDocument.body.querySelectorAll('*'))
 
   for (let i = 0, len = elements.length; i < len; i++) {
-    const el = elements[i]
-    const elName = el.nodeName.toLowerCase()
+    const element = elements[i]
+    const elementName = element.nodeName.toLowerCase()
 
-    if (!allowlistKeys.includes(elName)) {
-      el.remove()
+    if (!Object.keys(allowList).includes(elementName)) {
+      element.remove()
 
       continue
     }
 
-    const attributeList = [].concat(...el.attributes)
-    const allowedAttributes = [].concat(allowList['*'] || [], allowList[elName] || [])
+    const attributeList = [].concat(...element.attributes)
+    const allowedAttributes = [].concat(allowList['*'] || [], allowList[elementName] || [])
 
-    attributeList.forEach(attr => {
-      if (!allowedAttribute(attr, allowedAttributes)) {
-        el.removeAttribute(attr.nodeName)
+    attributeList.forEach(attribute => {
+      if (!allowedAttribute(attribute, allowedAttributes)) {
+        element.removeAttribute(attribute.nodeName)
       }
     })
   }