feat(viewer): ✨ Custom head code

apps/builder/components/settings/MetadataForm.tsx

@@ -7,9 +7,15 @@ import {
   Stack,
   Image,
   PopoverContent,
+  Tooltip,
+  HStack,
+  Text,
+  Flex,
 } from '@chakra-ui/react'
 import { ImageUploadContent } from 'components/shared/ImageUploadContent'
 import { Input, Textarea } from 'components/shared/Textbox'
+import { CodeEditor } from 'components/shared/CodeEditor'
+import { HelpCircleIcon } from 'assets/icons'
 
 type Props = {
   typebotName: string
@@ -30,6 +36,8 @@ export const MetadataForm = ({
     onMetadataChange({ ...metadata, favIconUrl })
   const handleImageSubmit = (imageUrl: string) =>
     onMetadataChange({ ...metadata, imageUrl })
+  const handleHeadCodeChange = (customHeadCode: string) =>
+    onMetadataChange({ ...metadata, customHeadCode })
 
   return (
     <Stack spacing="6">
@@ -37,7 +45,7 @@ export const MetadataForm = ({
         <FormLabel mb="0" htmlFor="icon">
           Icon:
         </FormLabel>
-        <Popover isLazy>
+        <Popover isLazy placement="top">
           <PopoverTrigger>
             <Image
               src={metadata.favIconUrl ?? '/favicon.png'}
@@ -62,7 +70,7 @@ export const MetadataForm = ({
         <FormLabel mb="0" htmlFor="image">
           Image:
         </FormLabel>
-        <Popover isLazy>
+        <Popover isLazy placement="top">
           <PopoverTrigger>
             <Image
               src={metadata.imageUrl ?? '/viewer-preview.png'}
@@ -102,6 +110,29 @@ export const MetadataForm = ({
           onChange={handleDescriptionChange}
         />
       </Stack>
+      <Stack>
+        <HStack as={FormLabel} mb="0" htmlFor="head">
+          <Text>Custom head code:</Text>
+          <Tooltip
+            label={
+              'Will be pasted at the bottom of the header section, just above the closing head tag. Only `meta` and `script` tags are allowed.'
+            }
+            placement="top"
+            hasArrow
+          >
+            <Flex cursor="pointer">
+              <HelpCircleIcon />
+            </Flex>
+          </Tooltip>
+        </HStack>
+        <CodeEditor
+          id="head"
+          value={metadata.customHeadCode ?? ''}
+          onChange={handleHeadCodeChange}
+          lang="html"
+          withVariableButton={false}
+        />
+      </Stack>
     </Stack>
   )
 }

apps/builder/playwright/tests/settings.spec.ts

@@ -82,7 +82,7 @@ test.describe.parallel('Settings page', () => {
       await page.click('button:has-text("Metadata")')
 
       // Fav icon
-      const favIconImg = page.locator(':nth-match(img, 1)')
+      const favIconImg = page.locator('img >> nth=0')
       await expect(favIconImg).toHaveAttribute('src', '/favicon.png')
       await favIconImg.click()
       await expect(page.locator('text=Giphy')).toBeHidden()
@@ -94,11 +94,11 @@ test.describe.parallel('Settings page', () => {
       await expect(favIconImg).toHaveAttribute('src', favIconUrl)
 
       // Website image
-      const websiteImg = page.locator(':nth-match(img, 2)')
+      const websiteImg = page.locator('img >> nth=1')
       await expect(websiteImg).toHaveAttribute('src', '/viewer-preview.png')
-      await websiteImg.click({ position: { x: 0, y: 180 } })
+      await websiteImg.click({ position: { x: 0, y: 160 }, force: true })
       await expect(page.locator('text=Giphy')).toBeHidden()
-      await page.click('button:has-text("Embed link")')
+      await page.click('button >> text="Embed link"')
       await page.fill('input[placeholder="Paste the image link..."]', imageUrl)
       await expect(websiteImg).toHaveAttribute('src', imageUrl)
 
@@ -107,6 +107,12 @@ test.describe.parallel('Settings page', () => {
 
       // Description
       await page.fill('textarea#description', 'Lorem ipsum')
+
+      // Custom head code
+      await page.fill(
+        'div[contenteditable=true]',
+        '<script>Lorem ipsum</script>'
+      )
     })
   })
 

apps/viewer/layouts/TypebotPage.tsx

@@ -3,9 +3,11 @@ import { Answer, PublicTypebot, VariableWithValue } from 'models'
 import { useRouter } from 'next/router'
 import React, { useEffect, useState } from 'react'
 import { upsertAnswer } from 'services/answer'
+import { isDefined } from 'utils'
 import { SEO } from '../components/Seo'
 import { createResult, updateResult } from '../services/result'
 import { ErrorPage } from './ErrorPage'
+import sanitizeHtml from 'sanitize-html'
 
 export type TypebotPageProps = {
   typebot?: PublicTypebot
@@ -39,6 +41,13 @@ export const TypebotPage = ({
     })
     setPredefinedVariables(predefinedVariables)
     initializeResult().then()
+    const { customHeadCode } = typebot.settings.metadata
+    if (isDefined(customHeadCode) && customHeadCode !== '')
+      document.head.innerHTML =
+        document.head.innerHTML +
+        sanitizeHtml(customHeadCode ?? '', {
+          allowedTags: ['script', 'meta'],
+        })
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [])
 

apps/viewer/package.json

@@ -23,9 +23,10 @@
     "next": "^12.1.4",
     "nodemailer": "^6.7.3",
     "qs": "^6.10.3",
-    "utils": "*",
     "react": "^17.0.2",
-    "react-dom": "^17.0.2"
+    "react-dom": "^17.0.2",
+    "sanitize-html": "^2.7.0",
+    "utils": "*"
   },
   "devDependencies": {
     "@playwright/test": "^1.20.2",
@@ -35,6 +36,7 @@
     "@types/nodemailer": "^6.4.4",
     "@types/qs": "^6.9.7",
     "@types/react": "^17.0.43",
+    "@types/sanitize-html": "^2.6.2",
     "@typescript-eslint/eslint-plugin": "^5.17.0",
     "eslint": "<8.0.0",
     "eslint-config-next": "12.1.4",