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fix(web): converge session search boundaries (round 9)

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Hypatia May
2026-07-27 14:46:08 +08:00
parent ba2925c704
commit 0aa7f8c5cf
29 changed files with 629 additions and 157 deletions
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25
packages/host/apiproxy/src/api/sessions.schema.ts
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@@ -58,6 +58,26 @@ export const sessionListValueSchema = z.object({
const SESSION_SEARCH_QUERY_MAX_CHARS = 500
/** Product response bound validated independently by every client carrier. */
const SESSION_SEARCH_RESULT_LIMIT = 20
/** Maximum response snippet length in Unicode code points. */
const SESSION_SEARCH_SNIPPET_MAX_CODE_POINTS = 240
/** Early-exit Unicode code-point bound without materializing an iterator result. */
function hasAtMostCodePoints(value: string, maximum: number): boolean {
let count = 0
let offset = 0
while (offset < value.length) {
if (count === maximum) return false
const first = value.charCodeAt(offset)
const paired = first >= 0xD800
&& first <= 0xDBFF
&& offset + 1 < value.length
&& value.charCodeAt(offset + 1) >= 0xDC00
&& value.charCodeAt(offset + 1) <= 0xDFFF
offset += paired ? 2 : 1
count++
}
return true
}
/** session.search request payload. */
export const sessionSearchRequestSchema = z.object({
@@ -68,7 +88,10 @@ export const sessionSearchRequestSchema = z.object({
/** One session.search result. */
export const sessionSearchItemSchema = z.object({
sessionId: sessionIdSchema,
snippet: z.string(),
snippet: z.string().refine(
snippet => hasAtMostCodePoints(snippet, SESSION_SEARCH_SNIPPET_MAX_CODE_POINTS),
{ message: `search snippet must contain at most ${SESSION_SEARCH_SNIPPET_MAX_CODE_POINTS} Unicode code points` },
),
}) satisfies z.ZodType<Wire<SessionSearchItem>>
/** session.search response value. */