[romanetar]

ref: https://app.clickup.com/t/9014802374/86bc64n02

What

Adds IRecoveryCodeService::disableTwoFactor(User $user, ?string $currentPassword, ?User $actor) and the rules it needs so the profile toggle and the admin CRUD (next PR, ticket 14) can reuse it.

It is the fd29e5cd commit of #169 cherry-picked onto #183, plus the adjustments below. It does not depend on #166.

• Clears two_factor_enabled, two_factor_enforced_at and recovery_codes_acknowledged_at, deletes every recovery code and revokes every trusted device, in one transaction, under the users-row lock (lockUserRow, taken first because it re-hydrates the user).
• Audits enrollment_changed with {enabled: false, actor_id, reason}, best-effort after the commit. reason is self, admin or console. This replaces the single device_revoked row of feat(mfa): add IRecoveryCodeService::disableTwoFactor #169.
• Refuses a group-enforced user when the actor is a user or an administrator (ValidationException, 412 at the API). Enforcement comes from enforced_groups, not from the stored flag, so disabling would only delete their codes and devices.
• Self-service (actor is the user): hasPasswordSet() -> current_password must match; no password (social-only account) -> the session must be inside the recovery enrollment window (isWithinEnrollmentWindow(), SDS rev 2.6 §4.10.3). This is the passwordless case raised on feat(mfa): add IRecoveryCodeService::disableTwoFactor #169.
• Adds User::isTwoFactorEnforcedByGroup() (the enforced_groups loop that was inlined in shouldRequire2FA(), which now calls it). It ignores the global two_factor.enabled kill-switch.

Decisions to review

• The console (null actor) may reset a group-enforced user. idp:reset-2fa (feat(mfa): add idp:reset-2fa command #171) is the manual recovery path, and an enforced admin who lost their codes needs their codes and devices cleared. The user is still challenged at login afterwards. Block it by dropping the !is_null($actor) condition, at the cost of that use case.
• Contract change for feat(mfa): add IRecoveryCodeService::disableTwoFactor #169 / feat(mfa): add idp:reset-2fa command #171: the audit event is now enrollment_changed with metadata (was device_revoked) and the service can throw for enforced users when an actor is passed. feat(mfa): add idp:reset-2fa command #171 may have tests that expect otherwise. Needs a look on that side.

Known conflict

#160 removes IUserTrustedDeviceRepository::revokeAllForUser(), which this method calls. Git merges both without conflict but the call would fail at runtime ("Call to undefined method"). Whichever of #160 / this PR merges second has to switch to the shared bulk revoke proposed on #160.

Tests

• RecoveryCodeServiceDisableTwoFactorTest (11): console / admin / self actors, wrong password, enforced user for each actor, passwordless inside and outside the window and with another user's window marker, audit failure does not fail the operation, lock ordering.
• DisableTwoFactorIntegrationTest (2): real database cleanup and audit row.
• Existing UserTwoFactorTest, RecoveryCodeEnrollmentServiceTest and RecoveryCodeRegenerationTest still pass.

Summary by CodeRabbit

• New Features
  • Two-factor authentication can now be disabled. Self-service requires your current password, or a recent enrollment session if your account has no password.
  • Disabling two-factor authentication clears recovery codes and revokes trusted devices.
  • Two-factor authentication enforced by group membership cannot be disabled through self-service or administrator actions.

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Walkthrough

Adds a 2FA disable operation with actor-specific validation. It clears 2FA and recovery-code state, revokes trusted devices in a transaction, and records a best-effort audit event. Tests cover successful cleanup, rejected requests, and audit failures.

Changes: Two-Factor Authentication Disable

Layer / File(s)	Summary
Disable contract and group enforcement app/Services/Auth/IRecoveryCodeService.php, app/libs/Auth/Models/User.php	Adds the disableTwoFactor contract and isTwoFactorEnforcedByGroup() helper. shouldRequire2FA() uses the helper after checking the global switch.
Disable operation and cleanup app/Services/Auth/RecoveryCodeService.php	Adds actor-specific validation. The transaction disables 2FA, clears recovery-code acknowledgment, deletes recovery codes, and revokes trusted devices. After commit, the service attempts to record an enrollment-change audit event.
Disable behavior tests tests/unit/RecoveryCodeServiceDisableTwoFactorTest.php, tests/DisableTwoFactorIntegrationTest.php	Adds unit and integration tests for console, admin, and self-service requests, group enforcement, cleanup, and audit behavior.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant Caller
  participant RecoveryCodeService
  participant ITransactionService
  participant IUserRepository
  participant IUserRecoveryCodeRepository
  participant IUserTrustedDeviceRepository
  participant ITwoFactorAuditService
  Caller->>RecoveryCodeService: Request disable
  RecoveryCodeService->>ITransactionService: Start transaction
  RecoveryCodeService->>IUserRepository: Lock user and save disabled state
  RecoveryCodeService->>IUserRecoveryCodeRepository: Delete recovery codes
  RecoveryCodeService->>IUserTrustedDeviceRepository: Revoke trusted devices
  RecoveryCodeService->>ITwoFactorAuditService: Record enrollment change after commit

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Suggested labels: security

Suggested reviewers: smarcet, matiasperrone-exo

Merge Risk: Minimal · previous review 297a9

The change adds a shared way to disable two-factor authentication with password, enrollment-window and group-enforcement checks, and no concrete defect was found. Callers must verify administrator rights themselves before passing another user as the actor. If the related change #160 merges first, the trusted-device revoke call must be switched to the shared bulk revoke.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 60.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documenta…	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title identifies the 2FA disable service, audit event, and group-enforcement guard.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 60.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 5 functions across 5 files.

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

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Commits

Reviewing files that changed from the base of the PR and between 4ce29ea and 297a9fb.

Files selected for processing: 5

• app/Services/Auth/IRecoveryCodeService.php
• app/Services/Auth/RecoveryCodeService.php
• app/libs/Auth/Models/User.php
• tests/DisableTwoFactorIntegrationTest.php
• tests/unit/RecoveryCodeServiceDisableTwoFactorTest.php

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[smarcet]

@romanetar This adds a second RecoveryCodeService::disableTwoFactor(): #169 already defines one with the same signature, and git merges this file without a conflict (only IRecoveryCodeService.php and the two test files conflict). git merge-tree of this branch and feat/mfa-disable-two-factor-service leaves both methods in RecoveryCodeService.php, and php -l fails with Cannot redeclare App\Services\Auth\RecoveryCodeService::disableTwoFactor(). The container resolves this class in the UserController and UserApiController constructors, so a tree merged that way breaks those routes, login included. Details in the matching comment on #169.

Separately, line 275 calls revokeAllForUser(), which #160 and #169 replace with revokeAllActiveForUser(User): UserTrustedDevice[]. git merge-tree of this branch and #160 also merges this file without a conflict and keeps that call, so disabling 2FA would fail with "Call to undefined method" at runtime.

The two implementations also disagree on audit semantics: this one writes a single enrollment_changed row and no device_revoked, while #169 writes one device_revoked (with device_id) per revoked device and leaves the enrollment/settings event to the caller (idp:reset-2fa in #171 writes settings_changed). SDS rev 2.6 (fntechgit/ftn-docsnsklz#179) specifies the per-device device_revoked for disableTwoFactor.

Suggested fix: keep a single method. Move the group guard, lockUserRow(), the recovery_codes_acknowledged_at reset and the passwordless window into #169's disableTwoFactor() instead of adding a second definition here, switch the revocation to revokeAllActiveForUser() with one device_revoked per returned device, and decide whether enrollment_changed is written by the service or by the caller so a reset does not record it twice. Then run php -l and phpunit on the combined tree.