aaronrene / knowtation public
parse-frontmatter-json.mjs
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sha256:b5f647cb9c409f563d4671fe3fc05ddea01fabfed9b41fc11cb923588e1c1baf mirror: GitHub Phase A durable MCP OAuth (#270) Human minor ⚠ breaking 10 days ago
1 /**
2 * Parse hosted canister `frontmatter` wire values (JSON object text, sometimes JSON-string-wrapped).
3 * Must tolerate BOM, quoted JSON blobs, and multi-layer string encoding from the ICP/gateway chain.
4 * @param {unknown} t
5 * @returns {Record<string, unknown>}
6 */
7 export function parseFrontmatterJsonText(t) {
8 let cur = String(t ?? '')
9 .replace(/^\uFEFF/, '')
10 .trim();
11 if (!cur) return {};
12 for (let i = 0; i < 8; i++) {
13 try {
14 const o = JSON.parse(cur);
15 if (o !== null && typeof o === 'object' && !Array.isArray(o)) {
16 return /** @type {Record<string, unknown>} */ (o);
17 }
18 if (typeof o === 'string') {
19 const next = o.trim();
20 if (next === cur) return {};
21 cur = next;
22 continue;
23 }
24 return {};
25 } catch {
26 // Value may be a JSON *string literal* whose contents are more JSON text.
27 if (cur.length >= 2 && cur.charCodeAt(0) === 34) {
28 try {
29 const inner = JSON.parse(cur);
30 if (typeof inner === 'string') {
31 cur = inner.trim();
32 continue;
33 }
34 } catch {
35 /* fall through */
36 }
37 }
38 return {};
39 }
40 }
41 return {};
42 }
43
44 /**
45 * @param {unknown} raw
46 * @returns {Record<string, unknown>}
47 */
48 export function materializeWireFrontmatter(raw) {
49 if (raw == null) return {};
50 if (typeof raw === 'object' && !Array.isArray(raw)) {
51 return /** @type {Record<string, unknown>} */ (raw);
52 }
53 if (typeof raw === 'string') return parseFrontmatterJsonText(raw);
54 return {};
55 }
File History 4 commits
sha256:b5f647cb9c409f563d4671fe3fc05ddea01fabfed9b41fc11cb923588e1c1baf mirror: GitHub Phase A durable MCP OAuth (#270) Human minor ⚠ 10 days ago
sha256:d8c648b20a4d53b2673c5c082ee7edfa7b2fc9b11080832da1f38807b6bf940b fix(7C-L1b): route hosted delegation proposals through cani… Human minor ⚠ 30 days ago
sha256:2827ba9e7632a4b141c50caf1e8f7d77abbc3515be20e7465f2bccb0ac4edf91 fix: repair endpoint now sets has_active_subscription when … Human minor ⚠ 50 days ago
sha256:6a102aafafdfe7e70a24f4e59740200f0ee713ce7915f1b53e9d4ba5ee8b4410 Initial Muse snapshot Human 82 days ago