Peter.Morton
f840587e5e
- Add contentFetchFlow() to proxy (FR-001 through FR-012) - Add extractArticleBody() helper with vkm:articleBody / articleBody fallback - Dynamic proxyBaseUrl derivation from x-forwarded-proto/host headers - Forward query/size/category params on /sitemap.xml requests - Add Accept: application/ld+json header to content API calls - Remove oidcAuthFlow() - unmatched requests now return 404 Not Found - Fix xmlbuilder2 import: default import, call as xmlbuilder2.create(...) - Version bump 0.2.0 → 0.3.0 - 45/45 tests passing Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
62 lines
4.4 KiB
Markdown
62 lines
4.4 KiB
Markdown
# Changelog
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All notable changes to this project will be documented in this file.
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The format follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
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This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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---
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## [Unreleased]
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---
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## [0.3.0] - 2026-04-23
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### Added
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- `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`
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- `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)
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- URL routing updated: `?kmeURL=` present → `contentFetchFlow()`, `/sitemap.xml` → `sitemapFlow()`, otherwise → `oidcAuthFlow()` (passthrough, FR-012 preserved)
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- `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
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- 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)
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- 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)
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---
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## [0.2.0] - 2026-04-23
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### Added
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- `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
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- `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
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- `getValidToken()` shared helper extracted from the existing OIDC auth flow — used by both sitemap and non-sitemap paths
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- URL routing at IIFE entry point: requests ending in `/sitemap.xml` → `sitemapFlow()`, all others → `oidcAuthFlow()`
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- Three new fields in `src/globalVariables/kme_CSA_settings.json`: `searchApiBaseUrl`, `tenant`, `proxyBaseUrl`
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- Three new placeholder fields in `src/globalVariables/kme_CSA_settings.json.example`
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- Unit tests for sitemap flow: happy path (items present), empty results, `vkm:url` filtering, 502/504/500 error scenarios, non-sitemap regression tests
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- Contract tests for sitemap endpoint: full round-trip 200, empty results 200, 502 upstream error, 504 timeout
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---
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## [0.1.0] - 2026-04-23
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### Added
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- `src/proxyScripts/kmeContentSourceAdapter.js` — OIDC authentication proxy script running in a Node.js VM sandbox (zero imports/exports)
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- `src/globalVariables/kme_CSA_settings.json` — OIDC credentials and token endpoint configuration (gitignored)
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- `src/globalVariables/kme_CSA_settings.json.example` — placeholder settings file for version control
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- Redis-backed token cache (`authorization` hash, fields `token` and `expiry`) — token persists across adapter restarts
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- Token stampede guard via in-process `_pendingFetch` promise — only one token fetch in-flight at a time
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- Absolute Unix epoch expiry check (`Date.now() / 1000 < expiry`)
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- `200 OK / Authorized` response on successful authentication
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- `401 Unauthorized` response with descriptive message on auth failure (bad credentials, timeout, unreachable service)
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- 5-second timeout on OIDC token POST requests
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- Structured logging throughout proxy script using `console.debug`, `console.info`, and `console.error`
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- `redis` dependency wired into VM context via `createClient().connect()` in `server.js`
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- Unit tests (`tests/unit/proxy.test.js`) — 12 tests covering US1, US2, US3, and stampede guard
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- Contract tests (`tests/contract/proxy-http.test.js`) — 2 tests covering HTTP 200/401 response shape
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[Unreleased]: https://github.com/your-org/kme-content-adapter/compare/v0.1.0...HEAD
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[0.1.0]: https://github.com/your-org/kme-content-adapter/releases/tag/v0.1.0
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