Every reader now stops at the read's character budget, a cell at 4,000
characters, one Office XML part at 12 MB, and parts with a DTD are
refused. A compound file named .docx is encrypted only when it holds an
EncryptedPackage stream, else unsupported; .eml files are unsupported
instead of raw MIME; maxChars that isn't a number falls back to 20,000.
attachment-text.test.ts: the zip bomb test passes the cap as an option
now, and a bare compound file named secret.docx is expected unsupported
(it is a legacy file under a new name; limits.test.ts covers the
password-protected one).
The sandbox runtime copied only the three policy flags from the host's
features, so a flag an assistant area adds (sidePanel, files, ...) never
reached api.host.features and the plugin hid the feature. The runtime
now copies every other flag the host names as true or false.
The host bridge assertions compare against withAssistant(...) like the
snapshot ones already did, because the init payload and host-change
carry the assistant's flags on top of the three policy flags.
EmailReadView.attachments gain cid and alt for images the HTML shows
inline. plugin-projection.test.ts now expects the cid on its inline
logo, since the view carries it.
api.email.getAttachmentText reads PDF (pdf.js), Word, Excel, PowerPoint
and OpenDocument files (own reader over fflate and DOMParser, unpacking
capped at 50 MB), text, CSV, HTML, calendar and address files, and
answers with a status for what it can't read. The extraction lives in
lib/attachment-text so Files can use it too.
The sandbox runtime now copies every flag the host sends into
api.host.features; before, it kept only the three core flags, so the
assistant's flags never reached a plugin. The host bridge assertions in
plugin-host-features.test.ts compare against the core flags plus the
assistant's (withAssistant), since the init payload and host-change now
carry attachmentText too.
The assistant's new host calls come in four areas (context, actions,
Files, the panel in every view), built side by side. Each area gets its
own files under lib/plugin-sandbox/assistant for its permissions, method
table, dispatcher, host feature flags and sandbox methods; the shared
files only read the merged result. No area adds anything yet. The host
features test now compares against the core flags plus the areas' flags.
Linus Rath
VasilisNtovolos