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kme_content_adapter/CHANGELOG.md
Peter.Morton ec23de90b9 chore: release v0.4.0 
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-04-23 19:07:51 -05:00

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Changelog

All notable changes to this project will be documented in this file.

The format follows Keep a Changelog. This project adheres to Semantic Versioning.

Unreleased

[0.4.0] - 2026-04-23

Added

  • Sitemap pagination via hydra:view['hydra:last']: after the first search page, all subsequent pages are fetched in parallel using the correct 0-based item-index start model (start = size, 2×size, …, lastStart); when all results fit on one page (hydra:view absent) no additional requests are made
  • Latest vkm:datePublished selection per SearchResultItem: when a search result contains multiple content fragments, only the fragment with the most recent vkm:datePublished is included in the sitemap; fragments without a date are treated as epoch 0
  • Sitemap URL cap: output is limited to 50,000 <loc> entries per the Sitemaps protocol; a warn log is emitted when results are truncated
  • Full HTML document wrapper for content fetch responses: body is now <!DOCTYPE html><html><head><title>…</title></head><body>…</body></html> instead of a bare articleBody fragment
  • <title> element populated from the vkm:name field of the fetched article (empty <title></title> when vkm:name is absent)

Changed

  • oidcAuthFlow route removed: requests that do not match ?kmeURL= or /sitemap.xml now return 404 Not Found

Fixed

  • proxyBaseUrl is now derived dynamically from the incoming request (X-Forwarded-Proto, X-Forwarded-Host, Host headers) rather than read from settings, ensuring correct <loc> URLs in all deployment environments

[0.3.0] - 2026-04-23

Added

  • GET /?kmeURL=<upstream-article-url> content fetch endpoint: fetches a KME article by URL and returns its vkm:articleBody as 200 text/html; charset=utf-8
  • contentFetchFlow() async function in kmeContentSourceAdapter.js — URL routing branch, 9-step implementation: validates kmeURL parameter (400 for missing/blank/malformed/non-http), acquires OIDC token via getValidToken (502 on failure), fetches upstream article with 10-second timeout, handles all error paths (4xx upstream → 404, 5xx/timeout/network → 502, unparseable body → 502, missing/empty vkm:articleBody → 404)
  • URL routing updated: ?kmeURL= present → contentFetchFlow(), /sitemap.xml → sitemapFlow(), otherwise → oidcAuthFlow() (passthrough, FR-012 preserved)
  • extractArticleBody(data) pure helper in kmeContentSourceAdapterHelpers.js — returns data['vkm:articleBody'] if non-empty non-whitespace string, otherwise null; guards against null/non-object input
  • Unit test describe blocks in tests/unit/proxy.test.js: extractArticleBody helper (7 edge-case tests), US-content-fetch: happy path (2 tests), US-content-fetch: input validation (6 tests), US-content-fetch: upstream errors (7 tests), US-content-fetch: body parsing (5 tests), US-content-fetch: passthrough preserved (1 test)
  • Contract tests in tests/contract/proxy-http.test.js: content fetch: happy path (full round-trip 200 + SC-001 timing), content fetch: error handling (upstream 404 → 404, upstream 503 → 502, server hang → 502 within 12s)

[0.2.0] - 2026-04-23

Added

  • GET /sitemap.xml endpoint: returns a well-formed XML Sitemap (Sitemaps protocol 0.9) containing one <url><loc> per knowledge item from the KME Knowledge Search Service
  • sitemapFlow() async function in kmeContentSourceAdapter.js — settings validation, OIDC token reuse, search API call, XML build via xmlbuilder2, 10-second timeout, 502/504/500 error responses
  • getValidToken() shared helper extracted from the existing OIDC auth flow — used by both sitemap and non-sitemap paths
  • URL routing at IIFE entry point: requests ending in /sitemap.xml → sitemapFlow(), all others → oidcAuthFlow()
  • Three new fields in src/globalVariables/kme_CSA_settings.json: searchApiBaseUrl, tenant, proxyBaseUrl
  • Three new placeholder fields in src/globalVariables/kme_CSA_settings.json.example
  • Unit tests for sitemap flow: happy path (items present), empty results, vkm:url filtering, 502/504/500 error scenarios, non-sitemap regression tests
  • Contract tests for sitemap endpoint: full round-trip 200, empty results 200, 502 upstream error, 504 timeout

0.1.0 - 2026-04-23

Added

  • src/proxyScripts/kmeContentSourceAdapter.js — OIDC authentication proxy script running in a Node.js VM sandbox (zero imports/exports)
  • src/globalVariables/kme_CSA_settings.json — OIDC credentials and token endpoint configuration (gitignored)
  • src/globalVariables/kme_CSA_settings.json.example — placeholder settings file for version control
  • Redis-backed token cache (authorization hash, fields token and expiry) — token persists across adapter restarts
  • Token stampede guard via in-process _pendingFetch promise — only one token fetch in-flight at a time
  • Absolute Unix epoch expiry check (Date.now() / 1000 < expiry)
  • 200 OK / Authorized response on successful authentication
  • 401 Unauthorized response with descriptive message on auth failure (bad credentials, timeout, unreachable service)
  • 5-second timeout on OIDC token POST requests
  • Structured logging throughout proxy script using console.debug, console.info, and console.error
  • redis dependency wired into VM context via createClient().connect() in server.js
  • Unit tests (tests/unit/proxy.test.js) — 12 tests covering US1, US2, US3, and stampede guard
  • Contract tests (tests/contract/proxy-http.test.js) — 2 tests covering HTTP 200/401 response shape
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