From c435347695827612952c8cf475f470c5027598dd Mon Sep 17 00:00:00 2001
From: Sergei Startsev <ai@programist.ru>
Date: Sat, 30 Nov 2019 02:36:02 +0300
Subject: [PATCH] [New] `jsx-no-script-url`: minor adjustments

---
 lib/rules/jsx-no-script-url.js       | 59 ++++++++++++++--------------
 tests/lib/rules/jsx-no-script-url.js |  2 +-
 2 files changed, 31 insertions(+), 30 deletions(-)

diff --git a/lib/rules/jsx-no-script-url.js b/lib/rules/jsx-no-script-url.js
index 0bbce3d8cc..63cf7dd023 100644
--- a/lib/rules/jsx-no-script-url.js
+++ b/lib/rules/jsx-no-script-url.js
@@ -20,6 +20,28 @@ function hasJavaScriptProtocol(attr) {
     isJavaScriptProtocol.test(attr.value.value);
 }
 
+function shouldVerifyElement(node, config) {
+  const name = node.name && node.name.name;
+  return name === 'a' || config.find(i => i.name === name);
+}
+
+function shouldVerifyProp(node, config) {
+  const name = node.name && node.name.name;
+  const parentName = node.parent.name && node.parent.name.name;
+
+  if (parentName === 'a' && name === 'href') {
+    return true;
+  }
+
+  const el = config.find(i => i.name === parentName);
+  if (!el) {
+    return false;
+  }
+
+  const props = el.props || [];
+  return node.name && props.indexOf(name) !== -1;
+}
+
 module.exports = {
   meta: {
     docs: {
@@ -30,6 +52,7 @@ module.exports = {
     },
     schema: [{
       type: 'array',
+      uniqueItems: true,
       items: {
         type: 'object',
         properties: {
@@ -51,38 +74,16 @@ module.exports = {
   },
 
   create(context) {
-    const configuration = context.options[0] || [];
-    const elements = configuration.map(i => i.name);
-
-    function shouldVerifyElement(node) {
-      const name = node.name && node.name.name;
-      return name === 'a' || elements.indexOf(name) !== -1;
-    }
-
-    function shouldVerifyProp(node) {
-      const name = node.name && node.name.name;
-      const parentName = node.parent.name && node.parent.name.name;
-
-      if (parentName === 'a' && name === 'href') {
-        return true;
-      }
-
-      if (elements.indexOf(parentName) === -1) {
-        return false;
-      }
-
-      const el = configuration.find(i => i.name === parentName);
-      const props = el && el.props || [];
-
-      return node.name && props.indexOf(name) !== -1;
-    }
-
+    const config = context.options[0] || [];
     return {
       JSXAttribute(node) {
         const parent = node.parent;
-        if (shouldVerifyElement(parent) && shouldVerifyProp(node) && hasJavaScriptProtocol(node)) {
-          context.report(node, 'A future version of React will block javascript: URLs as a security precaution. ' +
-            'Use event handlers instead if you can. If you need to generate unsafe HTML try using dangerouslySetInnerHTML instead.');
+        if (shouldVerifyElement(parent, config) && shouldVerifyProp(node, config) && hasJavaScriptProtocol(node)) {
+          context.report({
+            node,
+            message: 'A future version of React will block javascript: URLs as a security precaution. ' +
+              'Use event handlers instead if you can. If you need to generate unsafe HTML, try using dangerouslySetInnerHTML instead.'
+          });
         }
       }
     };
diff --git a/tests/lib/rules/jsx-no-script-url.js b/tests/lib/rules/jsx-no-script-url.js
index edb800aa42..bd2355bede 100644
--- a/tests/lib/rules/jsx-no-script-url.js
+++ b/tests/lib/rules/jsx-no-script-url.js
@@ -26,7 +26,7 @@ const parserOptions = {
 
 const ruleTester = new RuleTester({parserOptions});
 const message = 'A future version of React will block javascript: URLs as a security precaution. ' +
-  'Use event handlers instead if you can. If you need to generate unsafe HTML try using dangerouslySetInnerHTML instead.';
+  'Use event handlers instead if you can. If you need to generate unsafe HTML, try using dangerouslySetInnerHTML instead.';
 const defaultErrors = [{message}];
 
 ruleTester.run('jsx-no-script-url', rule, {