fix: Fix input.type check (#1184)

* fix: Fix input.type check

Actually I noticed that `el.type` returns `text` when type is not explicitly set, so this is slightly incorrect.

* fix linting

* Apply formatting changes

.changeset/nice-pugs-reply.md

@@ -0,0 +1,5 @@
+---
+'rrweb': patch
+---
+
+fix: Ensure getting the type of inputs works

packages/rrweb-snapshot/src/snapshot.ts

@@ -20,6 +20,7 @@ import {
   maskInputValue,
   isNativeShadowDom,
   getCssRulesString,
+  getInputType,
 } from './utils';
 
 let _id = 1;
@@ -682,11 +683,7 @@ function serializeElementNode(
       attributes.type !== 'button' &&
       value
     ) {
-      const type: string | null = n.hasAttribute('data-rr-is-password')
+      const type = getInputType(n);
-        ? 'password'
-        : typeof attributes.type === 'string'
-        ? attributes.type.toLowerCase()
-        : null;
       attributes.value = maskInputValue({
         type,
         tagName,

packages/rrweb-snapshot/src/utils.ts

@@ -248,3 +248,20 @@ export function isNodeMetaEqual(a: serializedNode, b: serializedNode): boolean {
     );
   return false;
 }
+
+/**
+ * Get the type of an input element.
+ * This takes care of the case where a password input is changed to a text input.
+ * In this case, we continue to consider this of type password, in order to avoid leaking sensitive data
+ * where passwords should be masked.
+ */
+export function getInputType(element: HTMLElement): Lowercase<string> | null {
+  const type = (element as HTMLInputElement).type;
+
+  return element.hasAttribute('data-rr-is-password')
+    ? 'password'
+    : type
+    ? // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
+      (type.toLowerCase() as Lowercase<string>)
+    : null;
+}

packages/rrweb/src/record/mutation.ts

@@ -8,6 +8,7 @@ import {
   maskInputValue,
   Mirror,
   isNativeShadowDom,
+  getInputType,
 } from 'rrweb-snapshot';
 import type { observerParam, MutationBufferParam } from '../types';
 import type {
@@ -29,7 +30,6 @@ import {
   isSerializedStylesheet,
   inDom,
   getShadowHost,
-  getInputType,
 } from '../utils';
 
 type DoubleLinkedListNode = {

packages/rrweb/src/record/observer.ts

@@ -1,10 +1,14 @@
-import { MaskInputOptions, maskInputValue, Mirror } from 'rrweb-snapshot';
+import {
+  MaskInputOptions,
+  maskInputValue,
+  Mirror,
+  getInputType,
+} from 'rrweb-snapshot';
 import type { FontFaceSet } from 'css-font-loading-module';
 import {
   throttle,
   on,
   hookSetter,
-  getInputType,
   getWindowScroll,
   getWindowHeight,
   getWindowWidth,

packages/rrweb/src/utils.ts

@@ -563,18 +563,3 @@ export function inDom(n: Node): boolean {
   if (!doc) return false;
   return doc.contains(n) || shadowHostInDom(n);
 }
-
-/**
- * Get the type of an input element.
- * This takes care of the case where a password input is changed to a text input.
- * In this case, we continue to consider this of type password, in order to avoid leaking sensitive data
- * where passwords should be masked.
- */
-export function getInputType(element: HTMLElement): Lowercase<string> | null {
-  return element.hasAttribute('data-rr-is-password')
-    ? 'password'
-    : element.hasAttribute('type')
-    ? // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion, @typescript-eslint/no-non-null-assertion
-      (element.getAttribute('type')!.toLowerCase() as Lowercase<string>)
-    : null;
-}

packages/rrweb/test/__snapshots__/integration.test.ts.snap

@@ -7473,6 +7473,238 @@ exports[`record integration tests should not record input events on ignored elem
 ]"
 `;
 
+exports[`record integration tests should not record input values if dynamically added and maskAllInputs is true 1`] = `
+"[
+  {
+    \\"type\\": 0,
+    \\"data\\": {}
+  },
+  {
+    \\"type\\": 1,
+    \\"data\\": {}
+  },
+  {
+    \\"type\\": 4,
+    \\"data\\": {
+      \\"href\\": \\"about:blank\\",
+      \\"width\\": 1920,
+      \\"height\\": 1080
+    }
+  },
+  {
+    \\"type\\": 2,
+    \\"data\\": {
+      \\"node\\": {
+        \\"type\\": 0,
+        \\"childNodes\\": [
+          {
+            \\"type\\": 1,
+            \\"name\\": \\"html\\",
+            \\"publicId\\": \\"\\",
+            \\"systemId\\": \\"\\",
+            \\"id\\": 2
+          },
+          {
+            \\"type\\": 2,
+            \\"tagName\\": \\"html\\",
+            \\"attributes\\": {
+              \\"lang\\": \\"en\\"
+            },
+            \\"childNodes\\": [
+              {
+                \\"type\\": 2,
+                \\"tagName\\": \\"head\\",
+                \\"attributes\\": {},
+                \\"childNodes\\": [
+                  {
+                    \\"type\\": 3,
+                    \\"textContent\\": \\"\\\\n    \\",
+                    \\"id\\": 5
+                  },
+                  {
+                    \\"type\\": 2,
+                    \\"tagName\\": \\"meta\\",
+                    \\"attributes\\": {
+                      \\"charset\\": \\"UTF-8\\"
+                    },
+                    \\"childNodes\\": [],
+                    \\"id\\": 6
+                  },
+                  {
+                    \\"type\\": 3,
+                    \\"textContent\\": \\"\\\\n    \\",
+                    \\"id\\": 7
+                  },
+                  {
+                    \\"type\\": 2,
+                    \\"tagName\\": \\"meta\\",
+                    \\"attributes\\": {
+                      \\"name\\": \\"viewport\\",
+                      \\"content\\": \\"width=device-width, initial-scale=1.0\\"
+                    },
+                    \\"childNodes\\": [],
+                    \\"id\\": 8
+                  },
+                  {
+                    \\"type\\": 3,
+                    \\"textContent\\": \\"\\\\n    \\",
+                    \\"id\\": 9
+                  },
+                  {
+                    \\"type\\": 2,
+                    \\"tagName\\": \\"title\\",
+                    \\"attributes\\": {},
+                    \\"childNodes\\": [
+                      {
+                        \\"type\\": 3,
+                        \\"textContent\\": \\"Empty\\",
+                        \\"id\\": 11
+                      }
+                    ],
+                    \\"id\\": 10
+                  },
+                  {
+                    \\"type\\": 3,
+                    \\"textContent\\": \\"\\\\n  \\",
+                    \\"id\\": 12
+                  }
+                ],
+                \\"id\\": 4
+              },
+              {
+                \\"type\\": 3,
+                \\"textContent\\": \\"\\\\n  \\",
+                \\"id\\": 13
+              },
+              {
+                \\"type\\": 2,
+                \\"tagName\\": \\"body\\",
+                \\"attributes\\": {},
+                \\"childNodes\\": [
+                  {
+                    \\"type\\": 3,
+                    \\"textContent\\": \\"\\\\n    \\",
+                    \\"id\\": 15
+                  },
+                  {
+                    \\"type\\": 2,
+                    \\"tagName\\": \\"div\\",
+                    \\"attributes\\": {
+                      \\"id\\": \\"one\\"
+                    },
+                    \\"childNodes\\": [],
+                    \\"id\\": 16
+                  },
+                  {
+                    \\"type\\": 3,
+                    \\"textContent\\": \\"\\\\n  \\\\n    \\",
+                    \\"id\\": 17
+                  },
+                  {
+                    \\"type\\": 2,
+                    \\"tagName\\": \\"script\\",
+                    \\"attributes\\": {},
+                    \\"childNodes\\": [
+                      {
+                        \\"type\\": 3,
+                        \\"textContent\\": \\"SCRIPT_PLACEHOLDER\\",
+                        \\"id\\": 19
+                      }
+                    ],
+                    \\"id\\": 18
+                  },
+                  {
+                    \\"type\\": 3,
+                    \\"textContent\\": \\"\\\\n    \\\\n    \\\\n\\\\n\\",
+                    \\"id\\": 20
+                  }
+                ],
+                \\"id\\": 14
+              }
+            ],
+            \\"id\\": 3
+          }
+        ],
+        \\"id\\": 1
+      },
+      \\"initialOffset\\": {
+        \\"left\\": 0,
+        \\"top\\": 0
+      }
+    }
+  },
+  {
+    \\"type\\": 3,
+    \\"data\\": {
+      \\"source\\": 0,
+      \\"texts\\": [],
+      \\"attributes\\": [],
+      \\"removes\\": [],
+      \\"adds\\": [
+        {
+          \\"parentId\\": 14,
+          \\"nextId\\": 16,
+          \\"node\\": {
+            \\"type\\": 2,
+            \\"tagName\\": \\"input\\",
+            \\"attributes\\": {
+              \\"id\\": \\"input\\",
+              \\"value\\": \\"**********************\\"
+            },
+            \\"childNodes\\": [],
+            \\"id\\": 21
+          }
+        }
+      ]
+    }
+  },
+  {
+    \\"type\\": 3,
+    \\"data\\": {
+      \\"source\\": 5,
+      \\"text\\": \\"**********************\\",
+      \\"isChecked\\": false,
+      \\"id\\": 21
+    }
+  },
+  {
+    \\"type\\": 3,
+    \\"data\\": {
+      \\"source\\": 2,
+      \\"type\\": 5,
+      \\"id\\": 21
+    }
+  },
+  {
+    \\"type\\": 3,
+    \\"data\\": {
+      \\"source\\": 5,
+      \\"text\\": \\"***********************\\",
+      \\"isChecked\\": false,
+      \\"id\\": 21
+    }
+  },
+  {
+    \\"type\\": 3,
+    \\"data\\": {
+      \\"source\\": 5,
+      \\"text\\": \\"************************\\",
+      \\"isChecked\\": false,
+      \\"id\\": 21
+    }
+  },
+  {
+    \\"type\\": 3,
+    \\"data\\": {
+      \\"source\\": 5,
+      \\"text\\": \\"*************************\\",
+      \\"isChecked\\": false,
+      \\"id\\": 21
+    }
+  }
+]"
+`;
+
 exports[`record integration tests should not record input values if maskAllInputs is enabled 1`] = `
 "[
   {

packages/rrweb/test/html/empty.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Empty</title>
+  </head>
+  <body>
+    <div id="one"></div>
+  </body>
+</html>

packages/rrweb/test/integration.test.ts

@@ -455,6 +455,30 @@ describe('record integration tests', function (this: ISuite) {
     assertSnapshot(snapshots);
   });
 
+  it('should not record input values if dynamically added and maskAllInputs is true', async () => {
+    const page: puppeteer.Page = await browser.newPage();
+    await page.goto('about:blank');
+    await page.setContent(
+      getHtml.call(this, 'empty.html', { maskAllInputs: true }),
+    );
+
+    await page.evaluate(() => {
+      const el = document.createElement('input');
+      el.id = 'input';
+      el.value = 'input should be masked';
+
+      const nextElement = document.querySelector('#one')!;
+      nextElement.parentNode!.insertBefore(el, nextElement);
+    });
+
+    await page.type('#input', 'moo');
+
+    const snapshots = (await page.evaluate(
+      'window.snapshots',
+    )) as eventWithTime[];
+    assertSnapshot(snapshots);
+  });
+
   it('should record webgl canvas mutations', async () => {
     const page: puppeteer.Page = await browser.newPage();
     await page.goto('about:blank');