Files
shadowdao bf4a9f48eb security: block data:image/svg+xml + sandbox HtmlBlock iframes
M-5: safeUrl() blocked javascript:/vbscript:/data:text/html but
allowed data:image/svg+xml, which can execute inline <script>/onload=
when loaded as a document/navigation target despite its "image" MIME
type (defense in depth -- not currently reachable to execution via
this sink, but closing it). Added `data:image/svg+xml` to the existing
DANGEROUS_SCHEME_PREFIXES check, so it's caught after the same
entity-decode/whitespace-strip/lowercase normalization used for the
other blocked schemes (obfuscated variants included). Other
data:image/* types (png/jpeg/gif/webp, ...) remain allowed unchanged.

M-6: HtmlBlock's purifyHtml() allowed <iframe src> through with no
`sandbox` attribute -- a clickjacking/phishing vector even with
DOMPurify already stripping script/on*=. Added a DOMPurify
afterSanitizeAttributes hook, scoped tightly to each purifyHtml() call
(added right before sanitize(), removed in a finally right after) so
it can't leak onto other DOMPurify uses or accumulate duplicates
across repeated calls, that force-sets a restrictive sandbox
(allow-scripts allow-same-origin allow-popups allow-forms -- no
allow-top-navigation) and referrerpolicy=no-referrer on every iframe
that survives sanitization.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-12 18:31:25 -07:00
..

WHP Site Builder v2

A visual drag-and-drop website builder for WHP, rebuilt from the ground up with Craft.js, React 18, and TypeScript. Replaces the legacy GrapesJS-based editor.

Quick Start

npm install
npm run dev

Opens at http://localhost:5173. The editor runs in standalone mode without WHP integration.

Build and Deploy

# Build production bundle
npm run build

# Deploy to WHP
cp dist/index.html /docker/whp/web/site-builder/editor.html
cp -r dist/js/ /docker/whp/web/site-builder/js/
cp -r dist/css/ /docker/whp/web/site-builder/css/

The PHP wrapper (index.php) injects WHP_CONFIG (user session, CSRF token, site ID) into the HTML before serving.

Architecture

  • Craft.js - React-based visual editor framework (no iframe, direct DOM rendering)
  • Inline styles - All user content uses React CSSProperties, no class-based CSS
  • Component pattern - Each component is a self-contained file with: render logic, settings panel, Craft.js config, and HTML export method
  • 3-panel layout - Left (blocks/pages/layers/assets), Center (canvas with device preview), Right (styles/settings/head)
  • Dark theme - CSS custom properties, Inter font, blue accent

Components (22)

Category Components
Layout Container, Section, ColumnLayout (1-6 cols), BackgroundSection, HeaderZone, FooterZone
Basic Heading (H1-H6), TextBlock, ButtonLink, Navbar, Footer, Divider, Spacer
Media ImageBlock (upload/browse/drag-drop), VideoBlock (YouTube/Vimeo/direct/background)
Sections HeroSimple, FeaturesGrid, CTASection
Forms FormContainer, InputField, TextareaField, FormButton

Features

  • Visual Editor - Drag-and-drop building, real-time preview, responsive device preview (Desktop/Tablet/Mobile)
  • Site Design Tokens - 17 site-wide properties (colors, fonts, radii, nav style) with Basic/Advanced tabs
  • Multi-Page - Unlimited pages with shared Header and Footer across all pages
  • 16 Templates - Pre-built designs across 4 categories (Business, Creative, Personal, Community)
  • Asset Management - Upload, browse, drag-drop, thumbnails, server-side storage via WHP API
  • HTML Export - Full document export with Google Fonts and inline styles
  • Auto-Save - Saves every 30 seconds when connected to WHP
  • Context Menu - Right-click for duplicate, copy, paste, move, delete
  • Keyboard Shortcuts - Undo, redo, delete
  • Layers Panel - Component hierarchy tree view
  • Undo/Redo - Full history support

Key Files

File Purpose
src/main.tsx Entry point, reads WHP_CONFIG
src/App.tsx Editor + providers (EditorConfig, SiteDesign, Pages)
src/components/resolver.ts Component registry (20 components) for serialization
src/editor/EditorShell.tsx 3-panel layout + context menu + keyboard shortcuts
src/editor/Canvas.tsx Craft.js Frame with device switching
src/state/PageContext.tsx Multi-page state + header/footer
src/state/SiteDesignContext.tsx 17 site-wide design tokens
src/templates/definitions.ts 16 template definitions
src/constants/presets.ts Color, font, spacing presets
src/utils/html-export.ts Node-tree to HTML renderer

See CLAUDE.md for full documentation. See FEATURES.md for a complete feature list.