openpencil/packages/core/tests/helpers/fig/nested-binding.ts
Danila Poyarkov e2a3aa3f80
fix: validate parsed JSON at untrusted boundaries with Valibot (#855)
* fix: validate parsed JSON at untrusted boundaries with Valibot

Clipboard HTML, library revisions from shared storage, MCP and automation
WebSocket messages, the MCP discovery file, sidecar output and AI/MCP tool
arguments were JSON.parse'd and cast to their expected types, so a
malformed payload reached the document or crashed paste. They now go
through v.pipe(v.string(), v.parseJson(), Schema), which reports bad JSON
and a wrong shape as the same validation failure.

The path_set tool rejects an invalid VectorNetwork and shares its parser
with create_vector. The CLI library catalog validates its files and runs
revisions through the same size, identity and content-hash checks as the
app; reading image bytes as index-keyed records also stops them coming
back empty. Hand-rolled typeof readers for plugin data, document metadata,
caches and preferences become schemas with their behaviour preserved, and
readCacheJSON takes a schema for its payload.

open-pencil/no-unvalidated-json-parse rejects type assertions on
JSON.parse results other than `as unknown` in src and packages/*/src.

* refactor: validate parsed JSON in tests and tooling

Extend open-pencil/no-unvalidated-json-parse beyond source: tests, helpers and repo tooling now parse JSON through Valibot schemas instead of asserting a type. The shared fixture reader returns a validated object; its old array annotation never matched the fixtures.

* fix: validate clipboard geometry bytes, library images and model catalogs

Clipboard geometry blobs and library image bytes must be bytes at contiguous indexes, so out-of-range or gapped values are rejected instead of silently becoming different geometry or images; serialized library nodes must carry source metadata. The models.dev and OpenRouter responses are validated like their cached copies, and activate-tab rejects a CDP frame it cannot read instead of hanging.

* refactor: extend the JSON validation lint to .json() results

no-unvalidated-json-parse now also rejects type assertions on Response, Bun.file and shell .json() results, the same unchecked parse in another form. MCP server tests read /health through a validated readHealth helper and discovery files through parseDiscoveryInfo; the remaining tooling reads its JSON through schemas.

* test: validate the RPC request body in the CLI app export test

* test: validate CLI JSON output in the tool and app command tests

* test: compare the malformed models.dev fallback with the curated list
2026-10-04 17:01:50 +00:00

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TypeScript

import type { SymbolData } from '@open-pencil/fig/instance-overrides'
import type { NodeChange } from '@open-pencil/kiwi/fig/codec'
import { expectDefined } from '../assert'
import { readFixtureObject } from './fixtures'
const fixture = readFixtureObject('nested-binding-ownership-records.json')
/** Remove only the placed owner's declaration, retaining the saved inherited expression. */
export function inheritedNestedBindingRecords(): NodeChange[] {
const changes = structuredClone(fixture.nodeChanges) as NodeChange[]
const owner = expectDefined(
changes.find((node) => node.guid?.sessionID === 293733 && node.guid.localID === 8),
'captured owner'
)
for (const override of (owner.symbolData as SymbolData).symbolOverrides ?? []) {
Reflect.deleteProperty(override, 'parameterConsumptionMap')
}
return changes
}