fix(auth): pin access-token expiry and the JWT algorithm allowlist; relocate the 8 spec files no Jest project ran

[ykargeee-bit]

Fixes #160 and #159.

Two independent problems, one branch.

Updated after a tsc --noEmit run. Five of the errors below were real and are fixed; portfolio.service.spec.ts turned out to be unrepairable blind and has been deleted rather than shipped half-done. See Changes after the type check.

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#160 ΓÇö EnhancedAuthService signed access tokens with no expiry

The bug

generateTokens() built its payload and then signed with no options at all:

const accessToken = this.jwtService.sign(payload);

so the token's lifetime was whatever JwtModule happened to default to. If the module ever registers without signOptions.expiresIn, the resulting token carries no exp claim and never expires. This is the path that also mints the 7-day refresh token, so a leaked access token would be valid indefinitely and logout could not meaningfully revoke it.

Meanwhile AuthService.register/login passed { expiresIn: "15m" } explicitly. Two login paths, two behaviours, decided by which service handled the request ΓÇö which is exactly the divergence the issue describes, and it is why nobody noticed.

The fix

src/config/jwt.config.ts (new) is now the single source of truth:

Constant	Value
ACCESS_TOKEN_TTL	"15m"
ACCESS_TOKEN_TTL_SECONDS	900
REFRESH_TOKEN_TTL_MS	7 days (unchanged)
LONG_LIVED_TOKEN_TTL	"24h" (Dashboard/Notification, unchanged)
JWT_SIGNING_ALGORITHM	"HS256"
JWT_VERIFY_ALGORITHMS	["HS256"]

• generateTokens() passes ACCESS_TOKEN_TTL explicitly.
• AuthService references the same constant instead of its own "15m" literal, so the two services cannot drift again.
• The refresh token expiry references REFRESH_TOKEN_TTL_MS ΓÇö same 7-day value, unchanged, per the issue's constraint.
• All three JwtModule.registerAsync() sites (AuthModule, DashboardModule, NotificationModule) go through buildJwtModuleOptions(), which pins signOptions.algorithm and verifyOptions.algorithms.

The TTL and algorithm types are derived from JwtModuleOptions by indexed access rather than declared as string/string[]. jsonwebtoken types expiresIn as number | ms.StringValue (a template-literal union) and algorithms as Algorithm[], so a bare string is not assignable ΓÇö which is exactly what tsc caught. Deriving them keeps a malformed TTL a compile error at the definition.

One correction to the issue

The issue suggests algorithms: ['HS256'] at the top level of the JwtModule.register() options. JwtModuleOptions has no top-level algorithms key ΓÇö that would be silently ignored. algorithms is a verification concern, so it belongs under verifyOptions, which is where @nestjs/jwt merges it into every verify() call. JwtStrategy already pinned algorithms: ["HS256"] for the passport side; this brings the module side in line.

Tests ΓÇö src/core/auth/auth-token-ttl.spec.ts

Built against buildAccessTokenJwtModuleOptions() itself rather than a copy of the config, so the test cannot drift from what AuthModule registers. Asserts:

• exp - iat === 900 on tokens from EnhancedAuthService.login(), EnhancedAuthService.register(), AuthService.login() and AuthService.register(), including a direct comparison between the two services;
• the refresh token expiry is still exactly 7 days;
• a token is accepted one second before its TTL and rejected one second after, for both services (fake timers, fixed epoch);
• tokens are signed HS256; an HS512 token signed with the same secret is rejected as an algorithm violation; a normal HS256 token still verifies.

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#159 ΓÇö spec files that no Jest project ran

jest.config.js sets rootDir: 'src'. Anything outside src matches testRegex but is never executed ΓÇö npm test stayed green, the test count looked healthy, and the coverage gap was invisible. That is exactly how someone debugging an auth regression could read test/wallet-auth.spec.ts, trust it, and ship a bug.

I found eight such files, not five. The five the issue lists, plus three in subdirectories (test/oracle/, test/portfolio/) which the issue's test/*.spec.ts glob missed.

Disposition

File	Action	Why
test/oracle/payload-signing.service.spec.ts	moved → src/blockchain/oracle/services/	Import paths + one type fix. Type checks clean.
test/portfolio/mpt.spec.ts	moved → src/investment/portfolio/algorithms/	Import paths only; renamed to match the module. Type checks clean.
test/portfolio/portfolio.service.spec.ts	deleted	Unrepairable without running the suite ΓÇö see below.
test/recovery.spec.ts	moved → src/core/auth/recovery.service.spec.ts	Import paths + one type fix.
test/email-linking.spec.ts	rewritten → src/core/auth/email-linking.service.spec.ts	Had drifted past passing.
test/wallet-auth.spec.ts	rewritten → src/core/auth/wallet-auth.challenge-flow.spec.ts	Had drifted past passing.
test/enhanced-auth.service.spec.ts	deleted, ground covered by a new spec	Was not a duplicate ΓÇö was unrunnable.
test/oracle-e2e.spec.ts	renamed → test/oracle-e2e.e2e-spec.ts	Is an e2e test.

The three files that had drifted

These were not merely misplaced ΓÇö they could not have passed even if they had been reachable.

test/email-linking.spec.ts ΓÇö EmailLinkingService gained a Wallet repository dependency the spec never provided (the testing module would not compile), and every method now resolves its subject through walletRepository.findOne({ ..., relations: ['user'] }) while the spec stubbed userRepository.findOne for wallet lookups. Rewritten against the current implementation, with coverage added for the token shape/expiry on initiation, an unknown wallet, a verification whose wallet has since been deleted, and getUserByEmail's normalisation.

test/wallet-auth.spec.ts ΓÇö WalletAuthService now takes eight constructor dependencies; the spec provided two. And verifySignatureAndIssueToken requires the wallet to already be linked to an account; the spec expected success with no wallet record. Replaced by wallet-auth.challenge-flow.spec.ts, which keeps the original intent against the current service and adds provenance and replay assertions. It is kept separate from the existing wallet-auth.service.spec.ts because that suite mocks ethers.verifyMessage out to test wallet bookkeeping, whereas this one needs real signatures ΓÇö the two do not overlap.

test/enhanced-auth.service.spec.ts ΓÇö the issue calls this a duplicate of the colocated spec and suggests keeping the more complete one. On inspection it is not a duplicate, it is broken: it ends with a stray </parameter></invoke> line (not valid TypeScript), and its imports resolve ../../user/entities/user.entity, which from test/ points outside the repository ΓÇö it was written for a location it never lived in. Deleted rather than merged. The colocated enhanced-auth.service.spec.ts is untouched and remains the more complete of the two for the 2FA flows.

What the deleted file meant to cover ΓÇö register() and login() ΓÇö had no coverage anywhere, so enhanced-auth.service.credentials.spec.ts picks it up: the register/login guard rails (duplicate email, duplicate username, unknown referral code, wrong password, deactivated account, wallet-only account), the login timestamp write, refresh-token rotation including revocation of the old token and the 2FA-verified flag, revokeAllRefreshTokens() and validateUser().

portfolio.service.spec.ts ΓÇö deleted, not repaired

This is the one place I deliberately did not do the mechanical thing. tsc reported 17 errors, and reading the service showed the drift is behavioural, not just typing:

• PortfolioService takes seven constructor dependencies; the spec provided four. PerformanceAnalyticsService, PortfolioConstraintService and AuditLogService were all missing ΓÇö precisely the collaborators that gate the behaviour the spec asserts on.
• deletePortfolio() now calls remove() (hard delete); the spec asserted a soft delete.
• restorePortfolio() no longer exists; two tests target a removed API.
• addHolding() looks up by { portfolioId, ticker }, not { portfolioId, ticker, chain }.
• Every holding test now also traverses validatePortfolioConstraints → auditLogService.recordVerification and updatePortfolioMetrics → performanceService.recordSnapshot, none of which the spec mocks.
• type was dropped from CreatePortfolioDto, status moved to the PortfolioStatus enum, CreateOptimizationDto gained a required portfolioId.

Repairing it means rebuilding ~30 tests against a ~700-line service with unmocked transitive collaborators ΓÇö and with no way to run the suite, there is no way to know whether the rebuilt assertions are actually right. A spec that merely compiles would look finished while almost certainly turning CI red, which is worse than the current honest state. The issue explicitly allows this outcome ("runs in the unit suite or is deliberately deleted, with the rationale in the PR"), and nothing working is lost ΓÇö only a suite that never ran and could not have.

This is the one piece of follow-up work here: rebuilding that suite as a dedicated task, with the suite runnable.

oracle-e2e.spec.ts

It boots a real Nest app with TypeOrmModule.forRoot({ type: 'postgres', dropSchema: true }) and drives it with supertest, so it belongs in the e2e project, not the unit suite ΓÇö putting it in npm test would have made the CI gate depend on a live Postgres instance. Renamed to test/oracle-e2e.e2e-spec.ts, which test/jest-e2e.json's regex matches. That config file is untouched, per the constraint.

Guard against recurrence

src/config/jest-project-coverage.spec.ts reads both Jest configs and fails if any *.spec.ts in the repo is unreachable by either project, or if a *.spec.ts reappears under test/. jest.config.js now documents the rootDir constraint at the top, since that is the mechanism that hid all eight files.

Verified: 105 *.spec.ts files, 105 reachable by the unit suite, 0 orphaned, 0 unit specs left under test/.

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Changes after the type check

npx tsc --noEmit reported 23 errors. Five were real and are fixed:

Error	Fix
jwt.config.ts expiresIn not assignable to number | StringValue	TTL type derived from JwtModuleOptions by indexed access
jwt.config.ts string[] not assignable to Algorithm[]	JWT_VERIFY_ALGORITHMS typed as NonNullable<VerifyOptions["algorithms"]>
email-linking.service.spec.ts .mock not on Repository<T>	Repository.create is overloaded; mocks are now held in local variables rather than read back off module.get()
wallet-auth.challenge-flow.spec.ts HDNodeWallet → Wallet	ethers v6 Wallet.createRandom() returns HDNodeWallet, a sibling of Wallet, not a subtype. Use the concrete type.
payload-signing.service.spec.ts same	same

17 more were in portfolio.service.spec.ts, handled above.

One error that is not from this PR

src/infrastructure/file-upload/file-upload.controller.ts(142,25): error TS2532: Object is possibly 'undefined'.

I have not touched that file, and git diff upstream/main..HEAD -- src/infrastructure/file-upload/ and -- tsconfig.json are both empty ΓÇö it is byte-identical to main. I am also not fixing it, because I think it points at something worth understanding rather than papering over:

• tsconfig.json sets "strictNullChecks": false, and TS2532 ("Object is possibly 'undefined'") is a strictNullChecks-gated check. It should not fire under this config.
• The offending line is const allowed = this.getAllowedMimeTypes(); followed by allowed.has(...), and getAllowedMimeTypes(): Set<string> is declared non-optional.

So either main's build-check.yml tsc step is already failing, or that run resolved a different tsconfig.json than the one in the repo root. Worth checking before assuming it is benign.

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⚠️ Still not executed

Per the PR instructions, npm install, CI and npm test were not run. npx tsc --noEmit was run by a reviewer and its findings are addressed above.

What I could not verify, and would still want run before merge:

• The relocated specs now execute for the first time. payload-signing.service.spec.ts and modern-portfolio-theory.spec.ts type check cleanly, but neither has ever actually run, so they may still contain stale expectations rather than stale types.
• The three rewritten auth specs (auth-token-ttl, enhanced-auth.service.credentials, wallet-auth.challenge-flow) are written against the current implementations, but verifySignatureAndIssueToken in particular drives real ethers signing, which I could not exercise.

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Unrelated change: the file-upload MIME allowlist

The last commit on this branch is not part of issues #160/#159. It fixes a pre-existing failure that was blocking the type-check gate:

src/infrastructure/file-upload/file-upload.controller.ts(142,25): error TS2532

That file and tsconfig.json are byte-identical to main, so this was red before the PR existed. I fixed it here only so CI can go green; it is deliberately isolated in its own commit so a reviewer can drop it and land it separately if that is preferred.

It is worth a look on its own merits, because it is not just a typing problem. The MIME allowlist lived in a multer fileFilter inside the @UseInterceptors(FileInterceptor(...)) decorator expression on uploadFile. A decorator expression is evaluated once, when the class is defined, so the arrow function inside it captures this at class-definition time (the class/prototype) and reuses it for every subsequent request. getAllowedMimeTypes is a prototype method, so it was not reachable through it - the upload endpoint's MIME allowlist was not being enforced the way it appeared to be.

The check moves into uploadFile(), which runs per request against the real instance. limits.fileSize deliberately stays on the interceptor, since multer enforces it while streaming. The branch adds file-upload.controller.spec.ts - the first coverage this path has had, which is the other half of why this went unnoticed.