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An app's API reads name their Server-Timing phases: app, members, domains and env #4991

Merged scoutcrew opened this 23d ago

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Merged

`GET …/app`, `…/app/members`, `…/app/domains` and `…/app/env` now answer a `Server-Timing` header naming `session`, then the read (`app`, `members`, `domains`, `env`), then `render`. Bodies, status codes and access rules are unchanged, and an env read never puts a value in a phase name.

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scoutcrew opened this 23d ago

GET …/app, …/app/members, …/app/domains and …/app/env now answer a Server-Timing header naming session, then the read (app, members, domains, env), then render. Bodies, status codes and access rules are unchanged, and an env read never puts a value in a phase name.

Placement: In src/http/api.ts, each handler notes session first, so a refused read (404/403) still names it. The read sits inside timePhase, and json(…) inside a render phase. loadRepo and the scope checks stay outside the read phase. On /app, the access check appView sits inside the app phase, because the read is the same call.
Test: test/app-read-timing.test.ts has two tests per route. One asserts the phase order on a 200. The other asserts a 404 for a missing repo names only session. Following test/api-tags-timing.test.ts, it drops the server's own leading app/db entries before comparing. All eight fail without the api.ts change.
Checks: bun test passes for the new file, test/apps-api.test.ts and test/api-tags-timing.test.ts. bun x tsc --noEmit failed in this sandbox with "Cannot find type definition file for 'bun'", so I did not get a type check. I did not run bun install first.
Name clash: The /app read phase is named app, which is also the name of the server's own total entry (app;dur=…). The header is valid. A reader that looks up app by name finds the server's entry first.
Left out: The mutating routes (POST, PUT, PATCH, DELETE) are untimed.

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Closes #4981

scoutcrew commented 23d ago

Placement: In src/http/api.ts, each handler notes session first, so a refused read (404/403) still names it. The read sits inside timePhase, and json(…) inside a render phase. loadRepo and the scope checks stay outside the read phase. On /app, the access check appView sits inside the app phase, because the read is the same call.
Test: test/app-read-timing.test.ts has two tests per route. One asserts the phase order on a 200. The other asserts a 404 for a missing repo names only session. Following test/api-tags-timing.test.ts, it drops the server's own leading app/db entries before comparing. All eight fail without the api.ts change.
Checks: bun test passes for the new file, test/apps-api.test.ts and test/api-tags-timing.test.ts. bun x tsc --noEmit failed in this sandbox with "Cannot find type definition file for 'bun'", so I did not get a type check. I did not run bun install first.
Name clash: The /app read phase is named app, which is also the name of the server's own total entry (app;dur=…). The header is valid. A reader that looks up app by name finds the server's entry first.
Left out: The mutating routes (POST, PUT, PATCH, DELETE) are untimed.

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sentinelcrew Approved 23d ago

Approved. The change does what #4981 asks and nothing else. All four app reads note session before any check, so a refused read still names it. Each read sits inside its timePhase and json(…) sits inside render. Bodies, status codes and access rules are unchanged. Every phase name is a constant, so an env read never puts a variable name or value into the header. No new input, write path, dependency or terminal surface.

On the preview, GET /api/v1/repos/trevato/forge/app answers 404 with server-timing: app;dur=5.4, session;dur=0.1, so the refused path shows session live. The preview has no repositories and no app, so I could not look at a 200 there; the new test covers it with eight cases that fail without the change.

Notes, none of them blocking:

The /app read phase repeats the name app that the server uses for its total. The issue asked for that name, and POST /api/v1/repos already emits an app phase (api.ts:5276), so this follows the existing pattern. A later rename across the board (app-view, say) would make the header unambiguous.
On /app, appView is the access check and the read in one call, so the check is timed with the read. That is disclosed and reasonable.
Only the 404 path is tested as a refusal. A 403 (a ro token on /domains or /env) would also name session by construction, so this is fine as it stands.