The html-embed feature toggle was enforced CLIENT-side in the NodeView (reads
settings.htmlEmbed from the logged-in workspace), so an anonymous public-share
viewer — who has no workspace context — always saw it as OFF and got a
placeholder instead of the executing embed. That broke the whole point (a
tracker must run for anonymous visitors).
Make it server-authoritative:
- share.service prepareContentForShare (the single path both share-content
flows use) strips htmlEmbed from served content when the workspace toggle is
OFF; both callers (updatePublicAttachments host page + lookupTransclusionForShare)
resolve the toggle once and pass it. Fail-closed: missing workspace -> OFF ->
stripped.
- NodeView executes whatever it was served in read-only/share mode
(shouldExecute = !editor.isEditable || htmlEmbedEnabled); the disabled
placeholder now only shows in the editable editor when OFF.
Net: anonymous share + toggle ON -> server serves the (admin-authored) embed ->
it executes for everyone; toggle OFF -> stripped server-side from every
share-content path (true kill switch); a non-admin embed can never be served
(save-path strip). No XSS regression in the editable editor.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The admin-only raw HTML/JS embed is a deliberate stored-XSS surface, so gate the
whole feature behind a workspace toggle that is OFF by default; it only works
when a workspace admin explicitly enables it.
- settings.htmlEmbed (boolean, default false) + workspace-update field htmlEmbed,
persisted via WorkspaceRepo.updateSetting with an audit diff. Flipping it is
admin-only (same Manage Settings CASL as other workspace toggles).
- New gate htmlEmbedAllowed(featureEnabled, role) = featureEnabled && admin/owner.
All 7 server write paths (create, duplicate, collab onStoreDocument, REST/MCP/AI
updatePageContent, single + zip import, transclusion unsync) now read the
workspace's settings.htmlEmbed and strip unless (toggle ON AND admin). OFF
(default, or a failed/empty workspace lookup) strips htmlEmbed for EVERYONE
including admins -> existing embeds are cleaned up on next save, none persist.
- Client (defense-in-depth): the /html slash item is hidden unless toggle ON +
admin; the NodeView executes nothing and shows a 'disabled in this workspace'
placeholder when OFF; an admin Switch in Workspace Settings -> General with a
description of the behavior.
- docs/html-embed-admin.md documents the toggle + admin-only + fail-closed
coedit (a non-admin save strips an admin's embed) + execution semantics.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Release-cycle test audit: the strip boundary was tested only via a stand-in
helper re-implemented in the spec, so a deleted/misplaced guard kept CI green
(the missing create() guard was proof). Replace it with tests against real code:
- persistence.extension.onStoreDocument: real ydoc from a rich doc (columns/
table/mention/htmlEmbed) -> non-admin strip removes only htmlEmbed, every other
node preserved (data-loss guard); admin keeps; empty fragment no-throw.
- collaboration.handler.updatePageContent: real path, user?.role gate, decoded
ydoc embed-free for non-admin, kept for admin.
- transclusion unsync: member stripped, admin preserved.
- editor-ext gains a vitest setup (was zero tests) + a markdown round-trip:
the <!--html-embed:BASE64--> marker -> htmlEmbed node with decoded source, and
hasHtmlEmbedNode matches it — pinning the marked/turndown shape the import
strip relies on. tsconfig now excludes specs from the shipped dist.
- Fail-closed identity: source-pinned contracts that the gate keys on
fileTask.creatorId (zip) / request userId (single) / callerRole (create) /
authUser.role (duplicate), and missing-user -> strip (services can't load under
jest's ESM graph; helpers replay the exact predicate).
Adds the verified-safe ^src/ jest moduleNameMapper (identical fail set).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Release-cycle red-team found the admin-only gate missed PageService.create():
content/textContent/ydoc were derived and persisted without the strip, so any
space member could POST /pages/create with an htmlEmbed node (incl. the
markdown/html <!--html-embed:BASE64--> form) and store executing JS for every
reader. Add the same gate used by duplicatePage: strip htmlEmbed when the
caller is not a workspace admin/owner. Role is plumbed from the controller
(user.role); unknown role => non-admin (strip). All four create paths (create,
duplicate, single import, zip import) plus the update paths are now guarded.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds an htmlEmbed block node that renders and executes raw HTML/CSS/JS in the
wiki origin (e.g. an analytics tracker) — the owner-chosen variant C. Because
this is stored-XSS by design, only workspace admins/owners may get such a node
persisted; everyone executes it when reading.
- Node (editor-ext): htmlEmbed atom/isolating block; source stored base64 in
data-source for lossless HTML<->JSON round-trip. renderHTML emits only the
encoded marker (never inlines raw markup), so generateHTML/export/search are
not themselves injection vectors. Registered in BOTH client extensions and
server tiptapExtensions. Markdown round-trip via an <!--html-embed:b64-->
comment (turndown) + a marked rule.
- Client NodeView: injects source and re-creates <script> elements so they
actually run; edit modal; renders in read-only/share too. Slash item is
admin-gated (adminOnly filtered by the user's workspace role).
- SERVER ENFORCEMENT (the real control — UI gating alone is insufficient):
stripHtmlEmbedNodes() removes htmlEmbed from any document persisted by a
non-admin, applied at every write path that introduces content from an
untrusted author: collab onStoreDocument, REST/MCP/AI updatePageContent,
single-file import, zip/multi-file import, page duplication, and transclusion
unsync. Page restore introduces no new content. Public share/readonly viewers
render fetched (already-stripped) content and do NOT open a collab socket, so
the only residual is a transient broadcast window to concurrent authenticated
editors (documented).
Implements docs/arbitrary-html-embed-plan.md (variant C).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
