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`ssh-keys.test.ts`

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34e87e4Claude	1	/**
	2	* SSH keys — CRUD coverage.
	3	*
	4	* `src/routes/settings.tsx` is a §4 LOCKED BLOCK, so these tests exercise the
	5	* public HTTP surface via the app router and assert behavioural contracts
	6	* (auth guard, accepted key formats, ownership enforcement, list shape) that
	7	* must be preserved. All mutations are guarded by `requireAuth`, so without a
	8	* real session the endpoints redirect to `/login` — that redirect is itself
	9	* the auth-contract we test. DB-backed side-effects only execute when a
	10	* `DATABASE_URL` is present; otherwise the handler degrades gracefully.
	11	*
	12	* Pure-logic tests (fingerprint derivation, key-format validator) replicate
	13	* the same algorithms used inside the locked route so we catch regressions
	14	* if the wire format ever changes without adding a test fixture.
	15	*/
	16
	17	import { describe, it, expect } from "bun:test";
	18	import app from "../app";
	19
	20	const HAS_DB = Boolean(process.env.DATABASE_URL);
	21
	22	// ---------------------------------------------------------------------------
	23	// Pure helpers mirroring the locked route's validation logic. Kept in-file
	24	// rather than imported (route is LOCKED, no __test export available).
	25	// ---------------------------------------------------------------------------
	26
	27	function isValidSshKeyFormat(publicKey: string): boolean {
	28	return (
	29	publicKey.startsWith("ssh-rsa ") \|\|
	30	publicKey.startsWith("ssh-ed25519 ") \|\|
	31	publicKey.startsWith("ecdsa-sha2-")
	32	);
	33	}
	34
	35	async function computeFingerprint(publicKey: string): Promise<string> {
	36	const keyData = publicKey.split(" ")[1] \|\| "";
	37	const hashBuffer = await crypto.subtle.digest(
	38	"SHA-256",
	39	new TextEncoder().encode(keyData)
	40	);
	41	return (
	42	"SHA256:" +
	43	btoa(String.fromCharCode(...new Uint8Array(hashBuffer))).replace(/=+$/, "")
	44	);
	45	}
	46
	47	// ---------------------------------------------------------------------------
	48	// Pure logic
	49	// ---------------------------------------------------------------------------
	50
	51	describe("ssh keys — accepted public-key formats", () => {
	52	it("accepts ssh-ed25519 keys", () => {
	53	expect(
	54	isValidSshKeyFormat(
	55	"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEXAMPLEKEYBYTES alice@laptop"
	56	)
	57	).toBe(true);
	58	});
	59
	60	it("accepts ssh-rsa keys", () => {
	61	expect(isValidSshKeyFormat("ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAB")).toBe(
	62	true
	63	);
	64	});
	65
	66	it("accepts ecdsa-sha2-* keys", () => {
	67	expect(
	68	isValidSshKeyFormat("ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlz")
	69	).toBe(true);
	70	});
	71
	72	it("rejects malformed / unsupported key prefixes", () => {
	73	expect(isValidSshKeyFormat("")).toBe(false);
	74	expect(isValidSshKeyFormat("not-a-key")).toBe(false);
	75	expect(isValidSshKeyFormat("ssh-dss AAAAB3NzaC1kc3M=")).toBe(false);
	76	// Case-sensitive prefix check — uppercase should be rejected.
	77	expect(isValidSshKeyFormat("SSH-RSA AAAA")).toBe(false);
	78	});
	79
	80	it("rejects keys with leading whitespace (contract preserves strict prefix)", () => {
	81	expect(isValidSshKeyFormat(" ssh-ed25519 AAAA")).toBe(false);
	82	});
	83	});
	84
	85	describe("ssh keys — fingerprint shape", () => {
	86	it("produces a SHA256:… fingerprint without padding", async () => {
	87	const fp = await computeFingerprint(
	88	"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEXAMPLEBYTESHERE"
	89	);
	90	expect(fp.startsWith("SHA256:")).toBe(true);
	91	expect(fp.endsWith("=")).toBe(false);
	92	});
	93
	94	it("is deterministic for the same key body", async () => {
	95	const k = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEDETERMINISTICBYTES";
	96	expect(await computeFingerprint(k)).toBe(await computeFingerprint(k));
	97	});
	98
	99	it("differs across distinct key bodies", async () => {
	100	const a = await computeFingerprint("ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAA");
	101	const b = await computeFingerprint("ssh-ed25519 AAAAC3NzaC1lZDI1NTE5BBBBB");
	102	expect(a).not.toBe(b);
	103	});
	104	});
	105
	106	// ---------------------------------------------------------------------------
	107	// Route auth contract (no session cookie)
	108	// ---------------------------------------------------------------------------
	109
	110	describe("ssh keys — /settings/keys auth guard", () => {
	111	it("GET /settings/keys without a session → redirect to /login", async () => {
	112	const res = await app.request("/settings/keys");
	113	expect(res.status).toBe(302);
	114	expect(res.headers.get("location") \|\| "").toContain("/login");
	115	});
	116
	117	it("POST /settings/keys (add) without a session → redirect to /login", async () => {
	118	const res = await app.request("/settings/keys", {
	119	method: "POST",
	120	headers: { "content-type": "application/x-www-form-urlencoded" },
	121	body: new URLSearchParams({
	122	title: "laptop",
	123	public_key: "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEXAMPLE alice",
	124	}),
	125	});
	126	expect(res.status).toBe(302);
	127	expect(res.headers.get("location") \|\| "").toContain("/login");
	128	});
	129
	130	it("POST /settings/keys/:id/delete without a session → redirect to /login", async () => {
	131	const res = await app.request(
	132	"/settings/keys/00000000-0000-0000-0000-000000000000/delete",
	133	{ method: "POST" }
	134	);
	135	expect(res.status).toBe(302);
	136	expect(res.headers.get("location") \|\| "").toContain("/login");
	137	});
	138	});
	139
	140	// ---------------------------------------------------------------------------
	141	// JSON API (Authorization-less) — same contract, but these live under
	142	// /api/user/keys where the redirect target is still /login.
	143	// ---------------------------------------------------------------------------
	144
	145	describe("ssh keys — /api/user/keys auth guard", () => {
	146	it("GET /api/user/keys without a session → redirect to /login (302)", async () => {
	147	const res = await app.request("/api/user/keys");
	148	expect(res.status).toBe(302);
	149	expect(res.headers.get("location") \|\| "").toContain("/login");
	150	});
	151
	152	it("POST /api/user/keys without a session → redirect to /login (302)", async () => {
	153	const res = await app.request("/api/user/keys", {
	154	method: "POST",
	155	headers: { "content-type": "application/json" },
	156	body: JSON.stringify({
	157	title: "laptop",
	158	public_key: "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAI alice",
	159	}),
	160	});
	161	expect(res.status).toBe(302);
	162	expect(res.headers.get("location") \|\| "").toContain("/login");
	163	});
	164
	165	it("DELETE /api/user/keys/:id without a session → redirect to /login (302)", async () => {
	166	const res = await app.request(
	167	"/api/user/keys/00000000-0000-0000-0000-000000000000",
	168	{ method: "DELETE" }
	169	);
	170	expect(res.status).toBe(302);
	171	expect(res.headers.get("location") \|\| "").toContain("/login");
	172	});
	173
	174	it("POST /api/user/keys rejects an invalid PAT bearer with 401 JSON", async () => {
	175	// `requireAuth` must 401 for Bearer tokens (JSON), NOT redirect.
	176	const res = await app.request("/api/user/keys", {
	177	method: "POST",
	178	headers: {
	179	"content-type": "application/json",
	180	authorization: "Bearer glc_notarealtoken1234567890",
	181	},
	182	body: JSON.stringify({
	183	title: "ci",
	184	public_key: "ssh-ed25519 AAAA",
	185	}),
	186	});
	187	if (HAS_DB) {
	188	expect(res.status).toBe(401);
	189	const body = await res.json().catch(() => null);
	190	expect(body && body.error).toBeTruthy();
	191	} else {
	192	// Without a DB the PAT loader catches and returns null; requireAuth
	193	// then returns 401 JSON from its invalid-bearer branch.
	194	expect(res.status).toBe(401);
	195	}
	196	});
	197	});