acme-server: foundation — directory + new-nonce + per-profile routing (Phase 1a/7)

First slice of the RFC 8555 ACME server endpoint (master plan at
cowork/acme-server-endpoint-prompt.md, per-phase prompts at
cowork/acme-server-prompts/). This commit lands the smallest viable
end-to-end deployable slice: an ACME client running

  curl -sk https://certctl/acme/profile/<id>/directory
  curl -sk -I https://certctl/acme/profile/<id>/new-nonce

successfully fetches the directory document and a Replay-Nonce.
Account creation, JWS verification, orders, challenges, and
revocation are all out of scope for this phase and arrive in Phases
1b–4.

Closes the Rank 1 LHF from the 2026-05-03 Infisical deep-research
(cowork/infisical-deep-research-results.md). Pre-fix, certctl was an
ACME consumer only — no /acme/directory endpoint, no JWS verifier,
no challenge validators. K8s customers running cert-manager could
not point at certctl as an ACME issuer; they had to deploy a certctl
agent on every node.

What ships:
  - internal/api/acme/{directory,nonce,errors}.go (+ tests).
  - internal/api/handler/acme.go + acme_handler_test.go.
  - internal/repository/postgres/acme.go (nonce ops only — Phase 1b
    extends with account CRUD; Phases 2-4 extend with order / authz /
    challenge CRUD).
  - internal/service/acme.go (BuildDirectory + IssueNonce stubs;
    Phase 1b adds VerifyJWS / NewAccount / etc.).
  - migrations/000025_acme_server.{up,down}.sql ships the full 5-table
    ACME schema (acme_accounts / acme_orders / acme_authorizations /
    acme_challenges / acme_nonces) PLUS the per-profile
    certificate_profiles.acme_auth_mode column. Phase 1a actively
    uses only acme_nonces; remaining tables are empty until Phases
    1b-4 plug in.
  - internal/config/config.go: ACMEServerConfig struct + ACMEServer
    field on Config. Env vars use CERTCTL_ACME_SERVER_* prefix to
    avoid colliding with the existing consumer-side ACMEConfig at
    config.go:1746 (CERTCTL_ACME_DIRECTORY_URL / PROFILE /
    CHALLENGE_TYPE etc.). Phase 1a wires Enabled +
    DefaultAuthMode + DefaultProfileID + NonceTTL + DirectoryMeta;
    Order/Authz TTLs + per-challenge-type concurrency caps + DNS01
    resolver are reserved fields parsed in 1a so operators can set
    them ahead of Phases 2/3.
  - cmd/server/main.go: wire ACMEHandler into the HandlerRegistry
    literal alongside the existing certificate / EST / SCEP / etc.
    handlers.
  - internal/api/router/router.go: HandlerRegistry.ACME field + 6
    Register calls (3 per-profile + 3 shorthand).
  - internal/api/router/openapi_parity_test.go: 6 new entries in
    SpecParityExceptions. ACME is a wire-protocol surface (JWS-signed
    JSON over HTTPS per RFC 7515) whose semantics are dictated by
    RFC 8555 + RFC 9773 rather than by an OpenAPI document, same
    precedent as SCEP/EST. The canonical reference is
    docs/acme-server.md.
  - docs/acme-server.md: Phase-1a-shaped reference. Configuration
    table for every CERTCTL_ACME_SERVER_* env var. Per-profile
    auth-mode decision tree skeleton. TLS trust bootstrap section
    flagging cert-manager's ClusterIssuer.spec.acme.caBundle
    requirement (the single biggest first-time-deploy footgun;
    the full cert-manager walkthrough lands in Phase 6 but the
    requirement is documented up front).

Architecture decisions baked in:
  - URL family is /acme/profile/<id>/* (per-profile, canonical) with
    /acme/* shorthand active when CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID
    is set. Path matches existing per-profile precedent in EST + SCEP.
  - Auth mode is per-profile (acme_auth_mode column on
    certificate_profiles), NOT server-wide. One certctl-server can
    serve trust_authenticated for an internal-PKI profile and
    challenge for a public-trust-style profile simultaneously. The
    column is read at request time, not cached at server start —
    operators flipping a profile's mode via SQL take effect on the
    next order without restart.
  - Nonces are DB-backed (acme_nonces table). Survive server restart.
    The RFC 8555 §6.5 replay defense requires the store to outlast
    the client's nonce caching window; an in-memory-only nonce
    store would lose every in-flight order on restart.
  - Per-op atomic counters on service.ACMEService.Metrics() —
    certctl_acme_directory_total, certctl_acme_directory_failures_total,
    certctl_acme_new_nonce_total, certctl_acme_new_nonce_failures_total.
    Naming follows certctl frozen decision 0.10 cardinality discipline.
    Phase 1b will extend with new_account counters; Phase 2 with
    order / finalize / cert; Phase 3 with per-challenge-type counters.

Audit fixes #11 + #12 (cowork/acme-server-prompts/audit-additions.md)
applied:
  - #11: CERTCTL_ACME_SERVER_* prefix avoids the consumer-side
    CERTCTL_ACME_* namespace collision.
  - #12: prior-attempt WIP from two failed Phase-1 dispatches was
    discarded at phase start; this commit starts from a clean tree.

Tests:
  - 14 unit tests in internal/api/acme/ (directory, nonce, errors).
  - 7 handler-level tests via httptest.NewServer + mockACMEService
    (mirrors the mockSCEPService pattern at scep_handler_test.go).
  - 7 service-layer tests with mocked repo + injected profileLookup.
  - All pass under -race -count=1 -short.

Deferred to Phase 1b:
  - JWS verification (go-jose v4 — see master-prompt §8a for the API
    surface and audit doc for the speculation pitfalls).
  - new-account / account/<id> endpoints + AccountService.
  - Nonce *consumption* path (issue path is in this commit; consume
    is only invoked by JWS-verified POSTs which Phase 1b adds).

Engineering history: cowork/WORKSPACE-CHANGELOG.md "ACME-Server-1a".
Per-phase implementation plan: cowork/acme-server-prompts/.
Master plan + audit fixes: cowork/acme-server-endpoint-prompt.md +
cowork/acme-server-prompt-audit.md +
cowork/acme-server-prompts/audit-additions.md.
This commit is contained in:
shankar0123
2026-05-03 12:47:52 +00:00
parent b8b7e1e3dd
commit ec88a61274
18 changed files with 1951 additions and 15 deletions
+18
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@@ -155,6 +155,10 @@ func main() {
profileRepo := postgres.NewProfileRepository(db) profileRepo := postgres.NewProfileRepository(db)
teamRepo := postgres.NewTeamRepository(db) teamRepo := postgres.NewTeamRepository(db)
ownerRepo := postgres.NewOwnerRepository(db) ownerRepo := postgres.NewOwnerRepository(db)
// ACME server (RFC 8555 + RFC 9773 ARI) — Phase 1a foundation.
// Repo wires nonce ops only; Phases 1b-4 extend with account /
// order / authz / challenge CRUD.
acmeRepo := postgres.NewACMERepository(db)
logger.Info("initialized all repositories") logger.Info("initialized all repositories")
// Initialize dynamic issuer registry. // Initialize dynamic issuer registry.
@@ -744,6 +748,14 @@ func main() {
// by PathID; the AdminEST handler reads it at request time. // by PathID; the AdminEST handler reads it at request time.
estServices := map[string]*service.ESTService{} estServices := map[string]*service.ESTService{}
// ACME server (RFC 8555 + RFC 9773 ARI) — Phase 1a foundation.
// Wires the directory + new-nonce surface against acmeRepo + the
// existing profileRepo (per-profile path resolution). Phases 1b-4
// extend with the JWS-authenticated POST surface — the constructor
// signature stays stable; later phases call setters.
acmeService := service.NewACMEService(acmeRepo, profileRepo, cfg.ACMEServer)
acmeHandler := handler.NewACMEHandler(acmeService)
// Build the API router with all handlers // Build the API router with all handlers
apiRouter := router.New() apiRouter := router.New()
apiRouter.RegisterHandlers(router.HandlerRegistry{ apiRouter.RegisterHandlers(router.HandlerRegistry{
@@ -799,6 +811,12 @@ func main() {
AdminEST: handler.NewAdminESTHandler( AdminEST: handler.NewAdminESTHandler(
handler.NewAdminESTServiceImpl(estServices), handler.NewAdminESTServiceImpl(estServices),
), ),
// ACME server (RFC 8555 + RFC 9773 ARI) — Phase 1a foundation.
// Phase 1a wires directory + new-nonce; subsequent phases extend
// with the JWS-authenticated POST surface (new-account,
// new-order, finalize, challenges, revoke, ARI). See
// docs/acme-server.md for the operator-facing reference.
ACME: acmeHandler,
}) })
// Register EST (RFC 7030) handlers if enabled. // Register EST (RFC 7030) handlers if enabled.
// //
+160
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@@ -0,0 +1,160 @@
# certctl ACME Server (Built-in)
certctl ships an RFC 8555 + RFC 9773 ARI ACME server endpoint at
`/acme/profile/<profile-id>/*`. Any RFC 8555 client (cert-manager 1.15+,
Caddy, Traefik, win-acme, certbot, Posh-ACME) can integrate with certctl
as an ACME issuer with no certctl-side modification — closing the
"deploy a certctl agent on every K8s node" friction that costs deals to
external PKI vendors today.
> **Phase status (2026-05-03):** Phase 1a (foundation — directory +
> new-nonce + per-profile routing). The directory document is live and
> ACME clients can fetch nonces. Account creation, JWS verification,
> orders, challenges, key rollover, revocation, and ARI all land in
> subsequent phases. Track shipped phases via
> `git log --grep='acme-server:'`.
## Configuration
All ACME-server config uses the `CERTCTL_ACME_SERVER_*` env-var prefix
(distinct from `CERTCTL_ACME_*` which configures the consumer-side
issuer connector). The struct definition lives in
`internal/config/config.go::ACMEServerConfig`.
| Env var | Default | Phase | Description |
|--------------------------------------------------|------------------------|-------|-------------|
| `CERTCTL_ACME_SERVER_ENABLED` | `false` | 1a | Master enable flag. Phase 1a's handler is constructed unconditionally so the registry shape stays stable; routes are registered in `internal/api/router/router.go::RegisterHandlers` regardless. Operators flip this on after configuring per-profile auth_mode. |
| `CERTCTL_ACME_SERVER_DEFAULT_AUTH_MODE` | `trust_authenticated` | 1a | Default value for `certificate_profiles.acme_auth_mode` on newly-created profiles. Existing profiles retain their stored value. Per-profile column is the source of truth at request time. |
| `CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID` | `""` | 1a | When set, `/acme/*` shorthand mirrors `/acme/profile/<DefaultProfileID>/*` for single-profile deployments. When empty, requests to the shorthand return RFC 7807 + RFC 8555 §6.7 `userActionRequired`. |
| `CERTCTL_ACME_SERVER_NONCE_TTL` | `5m` | 1a | How long an issued ACME nonce remains valid before the JWS verifier (Phase 1b) returns `urn:ietf:params:acme:error:badNonce` per RFC 8555 §6.5.1. Tune up if cert-manager + certctl clocks frequently skew. |
| `CERTCTL_ACME_SERVER_TOS_URL` | `""` | 1a | Optional `meta.termsOfService` URL in the directory document. |
| `CERTCTL_ACME_SERVER_WEBSITE` | `""` | 1a | Optional `meta.website` URL in the directory document. |
| `CERTCTL_ACME_SERVER_CAA_IDENTITIES` | (empty) | 1a | Comma-separated `meta.caaIdentities` list. |
| `CERTCTL_ACME_SERVER_EAB_REQUIRED` | `false` | 1a | `meta.externalAccountRequired` advertisement. EAB enforcement is a follow-up; Phase 1a only advertises. |
| `CERTCTL_ACME_SERVER_ORDER_TTL` | `24h` | 2 | Reserved field, parsed in Phase 1a so operators can set it ahead of Phase 2's order endpoints. |
| `CERTCTL_ACME_SERVER_AUTHZ_TTL` | `24h` | 2 | Reserved. |
| `CERTCTL_ACME_SERVER_HTTP01_CONCURRENCY` | `10` | 3 | Reserved. |
| `CERTCTL_ACME_SERVER_DNS01_RESOLVER` | `8.8.8.8:53` | 3 | Reserved. |
| `CERTCTL_ACME_SERVER_DNS01_CONCURRENCY` | `10` | 3 | Reserved. |
| `CERTCTL_ACME_SERVER_TLSALPN01_CONCURRENCY` | `10` | 3 | Reserved. |
## Per-profile auth mode
Two modes per `certificate_profiles.acme_auth_mode`:
- **`trust_authenticated`** (default for internal PKI). The JWS-
authenticated ACME account is trusted to issue certs for any
identifier the profile policy allows; there is no per-identifier
ownership proof. The most common certctl use case.
- **`challenge`**. Full HTTP-01 + DNS-01 + TLS-ALPN-01 validation per
RFC 8555 §8. Required when certctl is exposing public-trust-style PKI.
A single certctl-server can serve both modes simultaneously — the mode
is read from the bound profile's column at request time, not cached at
server start. Operators can flip a profile's mode via SQL and the next
order picks up the new mode without restart.
The `CERTCTL_ACME_SERVER_DEFAULT_AUTH_MODE` env var sets the default
value for newly-created profiles (e.g. via the certctl API). Existing
profile rows retain whatever value they were created with.
## TLS trust bootstrap (read this before configuring cert-manager)
When certctl-server uses a self-signed TLS bootstrap cert
(`deploy/test/certs/server.crt` is the demo default; see
[`docs/tls.md`](./tls.md)), cert-manager 1.15+ will refuse to talk to
the directory URL unless the certctl root is trusted. The fix lives in
`ClusterIssuer.spec.acme.caBundle`:
```yaml
apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
name: certctl-test
spec:
acme:
server: https://certctl.example.com:8443/acme/profile/prof-corp/directory
email: ops@example.com
caBundle: |
LS0tLS1CRUdJTi... # base64-encoded PEM of certctl's self-signed root
privateKeySecretRef:
name: certctl-test-account-key
solvers:
- http01:
ingress:
class: nginx
```
The `caBundle` value is the base64-encoded PEM of the root that signed
your certctl-server's TLS certificate. Extract it from your operator
bootstrap (e.g. `cat deploy/test/certs/ca.crt | base64 -w0`).
This is the single biggest first-time-deploy footgun on the cert-manager
integration path. The full cert-manager walkthrough lands in Phase 6;
the `caBundle` requirement is flagged here in Phase 1a's docs because
operators hit it the moment they try to point a real ACME client at
certctl.
## Endpoints (Phase 1a)
Routes registered in `internal/api/router/router.go::RegisterHandlers`:
| Method | Path | RFC ref | Auth | Description |
|--------|-------------------------------------------|-----------------|-----------|-------------|
| GET | `/acme/profile/{id}/directory` | RFC 8555 §7.1.1 | unauth | Per-profile directory document. |
| HEAD | `/acme/profile/{id}/new-nonce` | RFC 8555 §7.2 | unauth | Returns 200 + Replay-Nonce header. |
| GET | `/acme/profile/{id}/new-nonce` | RFC 8555 §7.2 | unauth | Returns 204 + Replay-Nonce header. |
| GET | `/acme/directory` | RFC 8555 §7.1.1 | unauth | Shorthand path; mirrors per-profile when `CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID` is set. |
| HEAD | `/acme/new-nonce` | RFC 8555 §7.2 | unauth | Shorthand. |
| GET | `/acme/new-nonce` | RFC 8555 §7.2 | unauth | Shorthand. |
The remaining RFC 8555 endpoints (`new-account`, `account/{id}`,
`new-order`, `order/{id}`, `order/{id}/finalize`, `authz/{id}`,
`challenge/{id}`, `cert/{id}`, `key-change`, `revoke-cert`,
`renewal-info`) are advertised in the directory document but not yet
served — clients hitting them get a 404 until subsequent phases land.
The directory document includes their URLs because RFC 8555 doesn't
permit a partial directory.
## Phases (cross-reference)
| Phase | Status | Surface |
|-------|-------------|---------|
| 1a | live | directory + new-nonce + per-profile routing |
| 1b | not yet | new-account + JWS verifier (RFC 7515) |
| 2 | not yet | orders + authzs + finalize + cert download (trust_authenticated mode end-to-end) |
| 3 | not yet | HTTP-01 + DNS-01 + TLS-ALPN-01 challenge validation |
| 4 | not yet | key rollover + revocation + ARI (RFC 9773) |
| 5 | not yet | cert-manager integration test + production hardening |
| 6 | not yet | full operator-facing reference + walkthroughs + threat model |
Track shipped phases via `git log --grep='acme-server:' --oneline`.
## Operational notes (Phase 1a)
- **Schema:** `migrations/000025_acme_server.up.sql` adds 5 ACME tables
+ the `certificate_profiles.acme_auth_mode` column. Phase 1a actively
uses only `acme_nonces`. The full schema ships now so the migration
is stable and Phases 1b-4 don't need additional `CREATE TABLE`
migrations.
- **Replay protection:** nonces are persisted in `acme_nonces` (NOT
in-memory). They survive server restart, which is required for the
RFC 8555 §6.5 replay defense to hold against a multi-replica
certctl-server fleet behind a load balancer.
- **Metrics:** the service layer exposes per-op atomic counters via
`service.ACMEService.Metrics().Snapshot()`:
- `certctl_acme_directory_total`
- `certctl_acme_directory_failures_total`
- `certctl_acme_new_nonce_total`
- `certctl_acme_new_nonce_failures_total`
Phase 1b will extend with `new_account` counters; Phase 2 with order
/ finalize / cert; Phase 3 with per-challenge-type counters.
- **Audit:** Phase 1a is read-mostly (directory + nonce). Phase 1b's
account-creation path will route through the canonical
`s.tx.WithinTx(...)` + `auditService.RecordEventWithTx(...)` pattern
so every account state mutation is paired with an `audit_events`
row.
+85
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@@ -0,0 +1,85 @@
// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
// Package acme implements the ACME server-side protocol surface (RFC 8555
// + RFC 9773 ARI). It is deliberately separate from
// internal/connector/issuer/acme/ which is the consumer surface (certctl
// talks UP to Let's Encrypt / ZeroSSL / pebble). The two surfaces share
// no types — the consumer's data model is client-shaped; the server's
// is request-handler-shaped.
//
// Phase 1a: directory + nonce + JSON-Problem (RFC 7807) error envelopes
// only. JWS verification, account resource, orders, challenges, key
// rollover, revocation, ARI all land in subsequent phases (1b → 4).
package acme
import "fmt"
// Directory is the JSON document RFC 8555 §7.1.1 mandates the server
// publish at /acme/profile/<id>/directory (and at /acme/directory when
// CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID is set).
//
// Each URL is the per-profile path the ACME client POSTs against. Even
// though Phase 1a only wires up new-nonce, the directory advertises
// the full surface — RFC 8555 doesn't permit a partial directory and
// clients use the directory's URL fields exclusively (they don't
// hand-construct paths from a base URL).
type Directory struct {
NewNonce string `json:"newNonce"`
NewAccount string `json:"newAccount"`
NewOrder string `json:"newOrder"`
RevokeCert string `json:"revokeCert"`
KeyChange string `json:"keyChange"`
// RenewalInfo (RFC 9773 ARI) lands in Phase 4. Omitted now via the
// `,omitempty` tag so the JSON output stays clean for clients that
// don't yet support ARI.
RenewalInfo string `json:"renewalInfo,omitempty"`
Meta *Meta `json:"meta,omitempty"`
}
// Meta is the optional metadata block per RFC 8555 §7.1.1. Every field
// is operator-supplied via CERTCTL_ACME_SERVER_* env vars; an empty
// Meta is omitted from the marshaled directory.
type Meta struct {
TermsOfService string `json:"termsOfService,omitempty"`
Website string `json:"website,omitempty"`
CAAIdentities []string `json:"caaIdentities,omitempty"`
ExternalAccountRequired bool `json:"externalAccountRequired,omitempty"`
}
// BuildDirectory constructs the per-profile directory document.
//
// baseURL is the per-profile base path (no trailing slash, e.g.
// "https://certctl.example.com/acme/profile/prof-corp"). The default-
// profile shorthand path passes the same baseURL — clients writing
// their config against the shorthand naturally re-derive the per-
// profile URLs from the directory.
//
// All five canonical RFC 8555 endpoints are populated; renewalInfo is
// populated only when ARIEnabled=true so Phase 1a (where ARI is
// non-functional) doesn't advertise a 404-returning URL. ARI flips on
// in Phase 4 along with the actual handler.
func BuildDirectory(baseURL, tos, website string, caa []string, eabRequired, ariEnabled bool) *Directory {
dir := &Directory{
NewNonce: fmt.Sprintf("%s/new-nonce", baseURL),
NewAccount: fmt.Sprintf("%s/new-account", baseURL),
NewOrder: fmt.Sprintf("%s/new-order", baseURL),
RevokeCert: fmt.Sprintf("%s/revoke-cert", baseURL),
KeyChange: fmt.Sprintf("%s/key-change", baseURL),
}
if ariEnabled {
// RFC 9773 §4.1 publishes ARI as `renewalInfo`. Phase 4 wires
// the actual handler; until then, BuildDirectory callers pass
// ariEnabled=false.
dir.RenewalInfo = fmt.Sprintf("%s/renewal-info", baseURL)
}
if tos != "" || website != "" || len(caa) > 0 || eabRequired {
dir.Meta = &Meta{
TermsOfService: tos,
Website: website,
CAAIdentities: caa,
ExternalAccountRequired: eabRequired,
}
}
return dir
}
+113
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@@ -0,0 +1,113 @@
// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
package acme
import (
"encoding/json"
"strings"
"testing"
)
func TestBuildDirectory_FullMeta(t *testing.T) {
d := BuildDirectory(
"https://server/acme/profile/prof-corp",
"https://example.com/tos",
"https://example.com",
[]string{"example.com"},
true,
false,
)
if got, want := d.NewNonce, "https://server/acme/profile/prof-corp/new-nonce"; got != want {
t.Errorf("NewNonce = %q, want %q", got, want)
}
if got, want := d.NewAccount, "https://server/acme/profile/prof-corp/new-account"; got != want {
t.Errorf("NewAccount = %q, want %q", got, want)
}
if got, want := d.NewOrder, "https://server/acme/profile/prof-corp/new-order"; got != want {
t.Errorf("NewOrder = %q, want %q", got, want)
}
if got, want := d.RevokeCert, "https://server/acme/profile/prof-corp/revoke-cert"; got != want {
t.Errorf("RevokeCert = %q, want %q", got, want)
}
if got, want := d.KeyChange, "https://server/acme/profile/prof-corp/key-change"; got != want {
t.Errorf("KeyChange = %q, want %q", got, want)
}
if d.RenewalInfo != "" {
t.Errorf("RenewalInfo should be empty when ariEnabled=false; got %q", d.RenewalInfo)
}
if d.Meta == nil {
t.Fatal("Meta should be populated when any meta field is set")
}
if d.Meta.TermsOfService != "https://example.com/tos" {
t.Errorf("TermsOfService = %q", d.Meta.TermsOfService)
}
if d.Meta.Website != "https://example.com" {
t.Errorf("Website = %q", d.Meta.Website)
}
if !d.Meta.ExternalAccountRequired {
t.Error("ExternalAccountRequired should be true")
}
if len(d.Meta.CAAIdentities) != 1 || d.Meta.CAAIdentities[0] != "example.com" {
t.Errorf("CAAIdentities = %v", d.Meta.CAAIdentities)
}
}
func TestBuildDirectory_NoMeta(t *testing.T) {
d := BuildDirectory("https://server/acme/profile/prof-corp", "", "", nil, false, false)
if d.Meta != nil {
t.Errorf("Meta should be nil when all meta fields zero; got %+v", d.Meta)
}
}
func TestBuildDirectory_EABRequiredOnly(t *testing.T) {
d := BuildDirectory("https://server/acme/profile/prof-corp", "", "", nil, true, false)
if d.Meta == nil {
t.Fatal("Meta should be populated when EAB is required")
}
if !d.Meta.ExternalAccountRequired {
t.Error("ExternalAccountRequired should be true")
}
if d.Meta.TermsOfService != "" || d.Meta.Website != "" || len(d.Meta.CAAIdentities) != 0 {
t.Errorf("only EAB should be set; meta = %+v", d.Meta)
}
}
func TestBuildDirectory_ARIEnabled(t *testing.T) {
d := BuildDirectory("https://server/acme/profile/prof-corp", "", "", nil, false, true)
if d.RenewalInfo == "" {
t.Fatal("RenewalInfo should be populated when ariEnabled=true")
}
if !strings.HasSuffix(d.RenewalInfo, "/renewal-info") {
t.Errorf("RenewalInfo = %q; expected suffix /renewal-info", d.RenewalInfo)
}
}
func TestBuildDirectory_JSONShape(t *testing.T) {
// RFC 8555 §7.1.1 dictates the JSON field names. A regression here
// would break every ACME client.
d := BuildDirectory("https://server/acme/profile/prof-corp", "", "", nil, false, false)
b, err := json.Marshal(d)
if err != nil {
t.Fatalf("Marshal: %v", err)
}
got := string(b)
for _, want := range []string{
`"newNonce":"https://server/acme/profile/prof-corp/new-nonce"`,
`"newAccount":"https://server/acme/profile/prof-corp/new-account"`,
`"newOrder":"https://server/acme/profile/prof-corp/new-order"`,
`"revokeCert":"https://server/acme/profile/prof-corp/revoke-cert"`,
`"keyChange":"https://server/acme/profile/prof-corp/key-change"`,
} {
if !strings.Contains(got, want) {
t.Errorf("JSON missing %q\nGot: %s", want, got)
}
}
// renewalInfo + meta should be omitted.
if strings.Contains(got, "renewalInfo") {
t.Errorf("renewalInfo should be omitted when ARI disabled; got %s", got)
}
if strings.Contains(got, `"meta"`) {
t.Errorf("meta should be omitted when no fields set; got %s", got)
}
}
+127
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@@ -0,0 +1,127 @@
// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
package acme
import (
"encoding/json"
"net/http"
)
// ProblemContentType is the MIME type RFC 7807 §3 mandates for the
// JSON-Problem error envelope. ACME inherits this from RFC 8555 §6.7.
const ProblemContentType = "application/problem+json"
// ACME error type URN prefix per RFC 8555 §6.7.
const acmeErrorPrefix = "urn:ietf:params:acme:error:"
// Problem is the RFC 7807 Problem Details document. ACME extends it
// per RFC 8555 §6.7 with subproblems (per-identifier-rejection
// breakdowns) and identifier (the failing identifier on
// rejectedIdentifier). Both extension fields land in Phase 2 along
// with the order endpoints; Phase 1a only emits the base shape.
type Problem struct {
Type string `json:"type"`
Detail string `json:"detail"`
Status int `json:"status"`
Subproblems []Problem `json:"subproblems,omitempty"`
Identifier *Identifier `json:"identifier,omitempty"`
}
// Identifier is the ACME identifier shape (RFC 8555 §7.4). Defined here
// (rather than in a Phase-2-only file) so Phase 1a's Problem struct can
// reference *Identifier without a forward-package-dependency.
type Identifier struct {
Type string `json:"type"`
Value string `json:"value"`
}
// Malformed is RFC 8555 §6.7's "request body did not parse / decode" /
// "the JWS was malformed" / "payload JSON was malformed" error. HTTP
// status 400.
func Malformed(detail string) Problem {
return Problem{
Type: acmeErrorPrefix + "malformed",
Detail: detail,
Status: http.StatusBadRequest,
}
}
// ServerInternal is the catch-all for unexpected server-side errors.
// HTTP status 500. The detail string is operator-facing; per the
// master prompt's acquisition-readiness criterion #10 it MUST NOT
// echo SQL errors, internal trace IDs, or credential bytes.
func ServerInternal(detail string) Problem {
return Problem{
Type: acmeErrorPrefix + "serverInternal",
Detail: detail,
Status: http.StatusInternalServerError,
}
}
// UserActionRequired is RFC 8555 §6.7's "the user has to do something
// out of band before this request will succeed" error. We return it
// from the /acme/* shorthand path family when
// CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID is not set — the operator
// has to either set the env var or update the client to use
// /acme/profile/<id>/*. HTTP status 403 per RFC 8555.
func UserActionRequired(detail string) Problem {
return Problem{
Type: acmeErrorPrefix + "userActionRequired",
Detail: detail,
Status: http.StatusForbidden,
}
}
// UnsupportedContentType is RFC 7807-shaped (no ACME error type) for
// requests with a Content-Type the endpoint doesn't accept. Phase 1b
// will switch the JWS endpoints to require
// "application/jose+json" specifically; Phase 1a's directory + nonce
// have no Content-Type requirements and never emit this.
func UnsupportedContentType(got string) Problem {
return Problem{
Type: "about:blank",
Detail: "unsupported content type: " + got,
Status: http.StatusUnsupportedMediaType,
}
}
// AccountDoesNotExist (RFC 8555 §7.3.1) is what the JWS verifier returns
// when the request's `kid` points at an unknown account. Phase 1b
// implements the verifier; this shape is exposed in Phase 1a for the
// errors_test.go round-trip cases.
func AccountDoesNotExist(detail string) Problem {
return Problem{
Type: acmeErrorPrefix + "accountDoesNotExist",
Detail: detail,
Status: http.StatusBadRequest,
}
}
// BadNonce is what the JWS verifier returns on a missing / replayed /
// expired nonce per RFC 8555 §6.5.1. Phase 1b wires the verifier;
// shape exposed now so errors_test.go can round-trip it.
func BadNonce(detail string) Problem {
return Problem{
Type: acmeErrorPrefix + "badNonce",
Detail: detail,
Status: http.StatusBadRequest,
}
}
// WriteProblem renders a Problem as RFC 7807 JSON to w, with the
// appropriate Content-Type and status. Any nil-Problem is rendered as
// 500 + serverInternal so the handler never panics on a forgotten
// error path.
func WriteProblem(w http.ResponseWriter, p Problem) {
if p.Status == 0 {
p = ServerInternal("unspecified error")
}
w.Header().Set("Content-Type", ProblemContentType)
w.WriteHeader(p.Status)
// Marshaling can only fail on un-encodable types; Problem only
// uses primitives + slices so json.Marshal cannot fail. The
// _ = ... discard mirrors how response.go handles json.Encoder
// errors.
_ = json.NewEncoder(w).Encode(p)
}
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// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
package acme
import (
"encoding/json"
"net/http"
"net/http/httptest"
"strings"
"testing"
)
func TestProblem_Malformed_Shape(t *testing.T) {
p := Malformed("payload was not valid JSON")
if p.Status != http.StatusBadRequest {
t.Errorf("status = %d, want %d", p.Status, http.StatusBadRequest)
}
if p.Type != "urn:ietf:params:acme:error:malformed" {
t.Errorf("type = %q", p.Type)
}
if p.Detail != "payload was not valid JSON" {
t.Errorf("detail = %q", p.Detail)
}
// Subproblems and Identifier are Phase-2 extensions; both stay empty
// for a Phase-1a-emitted problem.
if len(p.Subproblems) != 0 {
t.Errorf("subproblems should be empty; got %v", p.Subproblems)
}
if p.Identifier != nil {
t.Errorf("identifier should be nil; got %+v", p.Identifier)
}
}
func TestProblem_AllHelperShapes(t *testing.T) {
cases := []struct {
name string
p Problem
wantType string
wantStatus int
}{
{"Malformed", Malformed("x"), "urn:ietf:params:acme:error:malformed", http.StatusBadRequest},
{"ServerInternal", ServerInternal("x"), "urn:ietf:params:acme:error:serverInternal", http.StatusInternalServerError},
{"UserActionRequired", UserActionRequired("x"), "urn:ietf:params:acme:error:userActionRequired", http.StatusForbidden},
{"AccountDoesNotExist", AccountDoesNotExist("x"), "urn:ietf:params:acme:error:accountDoesNotExist", http.StatusBadRequest},
{"BadNonce", BadNonce("x"), "urn:ietf:params:acme:error:badNonce", http.StatusBadRequest},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
if tc.p.Type != tc.wantType {
t.Errorf("type = %q, want %q", tc.p.Type, tc.wantType)
}
if tc.p.Status != tc.wantStatus {
t.Errorf("status = %d, want %d", tc.p.Status, tc.wantStatus)
}
})
}
}
func TestProblem_UnsupportedContentType(t *testing.T) {
p := UnsupportedContentType("application/json")
if p.Status != http.StatusUnsupportedMediaType {
t.Errorf("status = %d, want 415", p.Status)
}
if p.Type != "about:blank" {
t.Errorf("UnsupportedContentType uses RFC 7807 about:blank; got %q", p.Type)
}
if !strings.Contains(p.Detail, "application/json") {
t.Errorf("detail should echo content-type; got %q", p.Detail)
}
}
func TestWriteProblem_Headers(t *testing.T) {
rec := httptest.NewRecorder()
WriteProblem(rec, Malformed("oops"))
if got, want := rec.Code, http.StatusBadRequest; got != want {
t.Errorf("status = %d, want %d", got, want)
}
if got, want := rec.Header().Get("Content-Type"), ProblemContentType; got != want {
t.Errorf("content-type = %q, want %q", got, want)
}
var p Problem
if err := json.NewDecoder(rec.Body).Decode(&p); err != nil {
t.Fatalf("Decode: %v", err)
}
if p.Type != "urn:ietf:params:acme:error:malformed" {
t.Errorf("decoded type = %q", p.Type)
}
}
func TestWriteProblem_NilStatusFallsBackTo500(t *testing.T) {
// Defensive check: a hand-constructed Problem with Status=0 (e.g.
// from a forgotten error path) still renders cleanly as 500 +
// serverInternal rather than emitting an HTTP/0 response.
rec := httptest.NewRecorder()
WriteProblem(rec, Problem{})
if got, want := rec.Code, http.StatusInternalServerError; got != want {
t.Errorf("status = %d, want %d", got, want)
}
if got, want := rec.Header().Get("Content-Type"), ProblemContentType; got != want {
t.Errorf("content-type = %q, want %q", got, want)
}
}
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// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
package acme
import (
"context"
"crypto/rand"
"encoding/base64"
"time"
)
// NonceStore is the persistence-layer contract for ACME nonces. The
// production implementation lives at internal/repository/postgres/acme.go
// and is DB-backed (NOT in-memory) — replay protection requires the
// store to outlast the client's nonce caching window.
//
// Issue creates a new nonce and stores it with a TTL. The string return
// is what the handler echoes in the Replay-Nonce response header.
//
// Consume marks a nonce used and returns an error if the nonce is
// missing, already used, or expired. The handler maps that error to
// urn:ietf:params:acme:error:badNonce per RFC 8555 §6.5.1.
//
// Phase 1a: Issue is wired (every directory + new-nonce response carries
// a Replay-Nonce header). Consume is exposed but not yet invoked —
// JWS-authenticated POSTs (which consume nonces) arrive in Phase 1b.
type NonceStore interface {
Issue(ctx context.Context, ttl time.Duration) (string, error)
Consume(ctx context.Context, nonce string) error
}
// nonceByteLen is 32 bytes (256 bits) of entropy. RFC 8555 §6.5.1 only
// requires nonces to be hard-to-guess; 256 bits is overkill on purpose
// (matches the consumer-side ACME library + every other ACME server).
const nonceByteLen = 32
// GenerateNonce returns 32 cryptographically-random bytes encoded as
// base64url-no-padding per RFC 7515 §2 (the encoding ACME wire format
// uses for the protected-header nonce field).
func GenerateNonce() (string, error) {
b := make([]byte, nonceByteLen)
if _, err := rand.Read(b); err != nil {
return "", err
}
return base64.RawURLEncoding.EncodeToString(b), nil
}
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// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
package acme
import (
"encoding/base64"
"testing"
)
func TestGenerateNonce_LengthAndCharset(t *testing.T) {
n, err := GenerateNonce()
if err != nil {
t.Fatalf("GenerateNonce: %v", err)
}
// base64.RawURLEncoding emits ceil(N*8/6) chars = ceil(32*8/6) = 43.
if got, want := len(n), 43; got != want {
t.Errorf("nonce length = %d, want %d", got, want)
}
// Charset must decode under base64url-no-padding.
raw, err := base64.RawURLEncoding.DecodeString(n)
if err != nil {
t.Fatalf("nonce did not decode under base64url-no-padding: %v", err)
}
if len(raw) != nonceByteLen {
t.Errorf("decoded nonce = %d bytes, want %d", len(raw), nonceByteLen)
}
}
func TestGenerateNonce_Distinct(t *testing.T) {
// Statistical sanity check, NOT cryptographic strength proof.
// 256 bits of entropy means the probability of two consecutive
// values colliding is ~2^-256 — well below the threshold for a
// flaky-test-on-the-cosmos timeline.
a, err := GenerateNonce()
if err != nil {
t.Fatalf("GenerateNonce a: %v", err)
}
b, err := GenerateNonce()
if err != nil {
t.Fatalf("GenerateNonce b: %v", err)
}
if a == b {
t.Errorf("two consecutive nonces collided: %q", a)
}
}
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// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
package handler
import (
"context"
"encoding/json"
"errors"
"net/http"
"github.com/shankar0123/certctl/internal/api/acme"
"github.com/shankar0123/certctl/internal/service"
)
// ACMEService is the handler-facing surface for the ACME server. The
// service-layer concrete type is *service.ACMEService; the interface
// definition lives here to keep the handler import-direction
// canonical (handler imports service, not the reverse). Phase 1a
// pins two methods; Phase 1b extends with VerifyJWS, NewAccount,
// LookupAccount, UpdateAccount, DeactivateAccount.
type ACMEService interface {
BuildDirectory(ctx context.Context, profileID, baseURL string) (*acme.Directory, error)
IssueNonce(ctx context.Context) (string, error)
}
// ACMEHandler exposes the ACME server's RFC 8555 endpoints under the
// per-profile path /acme/profile/<id>/* and (optionally) the
// /acme/* shorthand when CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID is
// set. Phase 1a wires:
//
// - GET /acme/profile/{id}/directory
// - HEAD /acme/profile/{id}/new-nonce
// - GET /acme/profile/{id}/new-nonce
// - GET /acme/directory (shorthand)
// - HEAD /acme/new-nonce (shorthand)
// - GET /acme/new-nonce (shorthand)
//
// Phase 1b adds new-account + account/<id>; Phase 2 adds new-order +
// order/<id>(/finalize) + authz/<id> + cert/<id>; Phase 3 adds
// challenge/<id>; Phase 4 adds key-change + revoke-cert + renewal-info.
//
// Handler shape mirrors internal/api/handler/scep.go:73-91 (struct
// holding the service interface, factory function returning the
// struct value).
type ACMEHandler struct {
svc ACMEService
}
// NewACMEHandler constructs an ACMEHandler. Returns the value (not a
// pointer) — same convention as NewSCEPHandler at scep.go:89.
func NewACMEHandler(svc ACMEService) ACMEHandler {
return ACMEHandler{svc: svc}
}
// Directory handles GET requests to the directory URL. The Go 1.22+
// stdlib router parses the {id} path parameter via r.PathValue("id").
// When the path is /acme/directory (no profile in URL), PathValue
// returns ""; the service layer applies the
// CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID fallback (or returns
// userActionRequired if unset).
func (h ACMEHandler) Directory(w http.ResponseWriter, r *http.Request) {
profileID := r.PathValue("id")
baseURL := h.directoryBaseURL(r, profileID)
dir, err := h.svc.BuildDirectory(r.Context(), profileID, baseURL)
if err != nil {
writeServiceError(w, err)
return
}
// RFC 8555 §6.5: every successful response carries Replay-Nonce.
// The directory endpoint is not JWS-authenticated but ACME clients
// expect the header so they can use it on the very next POST.
if nonce, err := h.svc.IssueNonce(r.Context()); err == nil {
w.Header().Set("Replay-Nonce", nonce)
}
w.Header().Set("Cache-Control", "public, max-age=0, no-cache")
w.Header().Set("Content-Type", "application/json")
_ = json.NewEncoder(w).Encode(dir)
}
// NewNonce handles HEAD and GET on the new-nonce URL.
//
// RFC 8555 §7.2:
// - HEAD MUST return 200 with Replay-Nonce + zero-length body.
// - GET MUST return 204 No Content with Replay-Nonce + zero-length body.
//
// Both verbs MUST set Cache-Control: no-store so middleboxes don't
// inadvertently re-serve a stale nonce.
//
// We resolve the profile here (rather than passing it through the
// service) only to validate it exists — the nonce itself is global
// to the server (one acme_nonces table), but if the operator hits
// /acme/profile/<bogus>/new-nonce we return 404 so the path-shape
// failure is operator-visible.
func (h ACMEHandler) NewNonce(w http.ResponseWriter, r *http.Request) {
profileID := r.PathValue("id")
// Same profile-resolution path as Directory — go through
// BuildDirectory only to leverage its profile-not-found / user-
// action-required mapping. The directory document is not used.
baseURL := h.directoryBaseURL(r, profileID)
if _, err := h.svc.BuildDirectory(r.Context(), profileID, baseURL); err != nil {
writeServiceError(w, err)
return
}
nonce, err := h.svc.IssueNonce(r.Context())
if err != nil {
acme.WriteProblem(w, acme.ServerInternal("nonce issuance failed"))
return
}
w.Header().Set("Replay-Nonce", nonce)
w.Header().Set("Cache-Control", "no-store")
if r.Method == http.MethodHead {
w.WriteHeader(http.StatusOK)
return
}
w.WriteHeader(http.StatusNoContent)
}
// directoryBaseURL composes the per-profile base URL the directory's
// inner URLs are built against. The composition lives in the handler
// (NOT the service) because it depends on the inbound request's
// scheme + host + observed path; the service layer would need to
// import net/http to do this.
//
// For requests on /acme/profile/<id>/* we strip the trailing path
// element to produce the base. For shorthand /acme/* requests we
// strip the trailing element from /acme — the result is just the
// scheme://host/acme prefix, which the service then uses to build
// /acme/new-nonce, /acme/new-account, etc.
func (h ACMEHandler) directoryBaseURL(r *http.Request, profileID string) string {
scheme := "https"
if r.TLS == nil {
// HTTPS-only architecture decision (CLAUDE.md): the listener
// is TLS 1.3 pinned. r.TLS == nil only happens in tests with
// httptest.NewServer (non-TLS); honor http: for those.
scheme = "http"
}
if profileID != "" {
return scheme + "://" + r.Host + "/acme/profile/" + profileID
}
return scheme + "://" + r.Host + "/acme"
}
// writeServiceError maps service-layer sentinels to RFC 7807 + RFC
// 8555 §6.7 problem responses. Centralized so every handler method
// gets identical mapping; future Phase 1b/2/3/4 sentinels extend
// the switch.
func writeServiceError(w http.ResponseWriter, err error) {
switch {
case errors.Is(err, service.ErrACMEUserActionRequired):
acme.WriteProblem(w, acme.UserActionRequired(
"this server requires the per-profile path /acme/profile/<id>/* — "+
"set CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID for /acme/* shorthand"))
case errors.Is(err, service.ErrACMEProfileNotFound):
acme.WriteProblem(w, acme.Problem{
Type: "urn:ietf:params:acme:error:userActionRequired",
Detail: "profile not found",
Status: http.StatusNotFound,
})
default:
// Avoid leaking internal error text per master-prompt
// criterion #10 (operator-actionable errors with no info
// leak). The detail is operator-facing but generic.
acme.WriteProblem(w, acme.ServerInternal("ACME server error"))
}
}
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// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
package handler
import (
"context"
"encoding/json"
"errors"
"net/http"
"net/http/httptest"
"strings"
"testing"
"github.com/shankar0123/certctl/internal/api/acme"
"github.com/shankar0123/certctl/internal/service"
)
// mockACMEService implements ACMEService for handler-level tests.
// Mirrors the mockSCEPService pattern at scep_handler_test.go (struct
// holding canned responses + an err field per method).
type mockACMEService struct {
BuildDirectoryFn func(ctx context.Context, profileID, baseURL string) (*acme.Directory, error)
IssueNonceFn func(ctx context.Context) (string, error)
}
func (m *mockACMEService) BuildDirectory(ctx context.Context, profileID, baseURL string) (*acme.Directory, error) {
if m.BuildDirectoryFn != nil {
return m.BuildDirectoryFn(ctx, profileID, baseURL)
}
return acme.BuildDirectory(baseURL, "", "", nil, false, false), nil
}
func (m *mockACMEService) IssueNonce(ctx context.Context) (string, error) {
if m.IssueNonceFn != nil {
return m.IssueNonceFn(ctx)
}
return "test-nonce-12345", nil
}
// newACMETestServer wires the ACMEHandler against the mock + a stdlib
// ServeMux configured exactly the way internal/api/router/router.go
// does it in production. Routes:
//
// GET /acme/profile/{id}/directory
// HEAD /acme/profile/{id}/new-nonce
// GET /acme/profile/{id}/new-nonce
// GET /acme/directory (shorthand)
// HEAD /acme/new-nonce (shorthand)
// GET /acme/new-nonce (shorthand)
func newACMETestServer(t *testing.T, mock *mockACMEService) *httptest.Server {
t.Helper()
h := NewACMEHandler(mock)
mux := http.NewServeMux()
mux.HandleFunc("GET /acme/profile/{id}/directory", h.Directory)
mux.HandleFunc("HEAD /acme/profile/{id}/new-nonce", h.NewNonce)
mux.HandleFunc("GET /acme/profile/{id}/new-nonce", h.NewNonce)
mux.HandleFunc("GET /acme/directory", h.Directory)
mux.HandleFunc("HEAD /acme/new-nonce", h.NewNonce)
mux.HandleFunc("GET /acme/new-nonce", h.NewNonce)
return httptest.NewServer(mux)
}
func TestACMEHandler_Directory_HappyPath(t *testing.T) {
mock := &mockACMEService{}
srv := newACMETestServer(t, mock)
defer srv.Close()
resp, err := http.Get(srv.URL + "/acme/profile/prof-corp/directory")
if err != nil {
t.Fatalf("Get: %v", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
t.Errorf("status = %d, want 200", resp.StatusCode)
}
if got := resp.Header.Get("Content-Type"); got != "application/json" {
t.Errorf("content-type = %q", got)
}
if got := resp.Header.Get("Replay-Nonce"); got == "" {
t.Error("Replay-Nonce header missing on directory response")
}
var dir acme.Directory
if err := json.NewDecoder(resp.Body).Decode(&dir); err != nil {
t.Fatalf("Decode: %v", err)
}
if !strings.Contains(dir.NewNonce, "/acme/profile/prof-corp/new-nonce") {
t.Errorf("NewNonce = %q", dir.NewNonce)
}
}
func TestACMEHandler_Directory_UnknownProfile(t *testing.T) {
mock := &mockACMEService{
BuildDirectoryFn: func(ctx context.Context, profileID, baseURL string) (*acme.Directory, error) {
return nil, service.ErrACMEProfileNotFound
},
}
srv := newACMETestServer(t, mock)
defer srv.Close()
resp, err := http.Get(srv.URL + "/acme/profile/missing/directory")
if err != nil {
t.Fatalf("Get: %v", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusNotFound {
t.Errorf("status = %d, want 404", resp.StatusCode)
}
if got := resp.Header.Get("Content-Type"); got != acme.ProblemContentType {
t.Errorf("content-type = %q, want %q", got, acme.ProblemContentType)
}
}
func TestACMEHandler_NewNonce_HEAD(t *testing.T) {
mock := &mockACMEService{}
srv := newACMETestServer(t, mock)
defer srv.Close()
req, _ := http.NewRequest(http.MethodHead, srv.URL+"/acme/profile/prof-corp/new-nonce", nil)
resp, err := http.DefaultClient.Do(req)
if err != nil {
t.Fatalf("HEAD: %v", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
t.Errorf("status = %d, want 200 (HEAD)", resp.StatusCode)
}
if got := resp.Header.Get("Replay-Nonce"); got != "test-nonce-12345" {
t.Errorf("Replay-Nonce = %q", got)
}
if got := resp.Header.Get("Cache-Control"); got != "no-store" {
t.Errorf("Cache-Control = %q, want no-store", got)
}
if resp.ContentLength > 0 {
t.Errorf("HEAD body should be zero-length; got Content-Length=%d", resp.ContentLength)
}
}
func TestACMEHandler_NewNonce_GET(t *testing.T) {
mock := &mockACMEService{}
srv := newACMETestServer(t, mock)
defer srv.Close()
resp, err := http.Get(srv.URL + "/acme/profile/prof-corp/new-nonce")
if err != nil {
t.Fatalf("Get: %v", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusNoContent {
t.Errorf("status = %d, want 204 (GET)", resp.StatusCode)
}
if got := resp.Header.Get("Replay-Nonce"); got != "test-nonce-12345" {
t.Errorf("Replay-Nonce = %q", got)
}
if got := resp.Header.Get("Cache-Control"); got != "no-store" {
t.Errorf("Cache-Control = %q", got)
}
}
func TestACMEHandler_Shorthand_DefaultProfileSet(t *testing.T) {
// Service-layer mock returns a directory; handler test asserts the
// /acme/directory shorthand reaches the same handler path as the
// per-profile directory.
mock := &mockACMEService{}
srv := newACMETestServer(t, mock)
defer srv.Close()
resp, err := http.Get(srv.URL + "/acme/directory")
if err != nil {
t.Fatalf("Get: %v", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
t.Errorf("status = %d, want 200", resp.StatusCode)
}
var dir acme.Directory
if err := json.NewDecoder(resp.Body).Decode(&dir); err != nil {
t.Fatalf("Decode: %v", err)
}
if !strings.HasSuffix(dir.NewNonce, "/acme/new-nonce") {
t.Errorf("NewNonce = %q (shorthand path expected)", dir.NewNonce)
}
}
func TestACMEHandler_Shorthand_DefaultProfileUnset(t *testing.T) {
mock := &mockACMEService{
BuildDirectoryFn: func(ctx context.Context, profileID, baseURL string) (*acme.Directory, error) {
return nil, service.ErrACMEUserActionRequired
},
}
srv := newACMETestServer(t, mock)
defer srv.Close()
resp, err := http.Get(srv.URL + "/acme/directory")
if err != nil {
t.Fatalf("Get: %v", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusForbidden {
t.Errorf("status = %d, want 403", resp.StatusCode)
}
if got := resp.Header.Get("Content-Type"); got != acme.ProblemContentType {
t.Errorf("content-type = %q, want %q", got, acme.ProblemContentType)
}
var p acme.Problem
if err := json.NewDecoder(resp.Body).Decode(&p); err != nil {
t.Fatalf("Decode: %v", err)
}
if p.Type != "urn:ietf:params:acme:error:userActionRequired" {
t.Errorf("Problem.Type = %q", p.Type)
}
}
func TestACMEHandler_NewNonce_ServiceError(t *testing.T) {
mock := &mockACMEService{
IssueNonceFn: func(ctx context.Context) (string, error) {
return "", errors.New("disk full")
},
}
srv := newACMETestServer(t, mock)
defer srv.Close()
resp, err := http.Get(srv.URL + "/acme/profile/prof-corp/new-nonce")
if err != nil {
t.Fatalf("Get: %v", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusInternalServerError {
t.Errorf("status = %d, want 500", resp.StatusCode)
}
if got := resp.Header.Get("Content-Type"); got != acme.ProblemContentType {
t.Errorf("content-type = %q", got)
}
}
@@ -50,6 +50,23 @@ var SpecParityExceptions = map[string]string{
// operator-facing description. // operator-facing description.
"GET /scep-mtls": "Phase 6.5 mTLS sibling route — same wire format as /scep with cert-required gate; documented in docs/legacy-est-scep.md", "GET /scep-mtls": "Phase 6.5 mTLS sibling route — same wire format as /scep with cert-required gate; documented in docs/legacy-est-scep.md",
"POST /scep-mtls": "Phase 6.5 mTLS sibling route — same wire format as /scep with cert-required gate; documented in docs/legacy-est-scep.md", "POST /scep-mtls": "Phase 6.5 mTLS sibling route — same wire format as /scep with cert-required gate; documented in docs/legacy-est-scep.md",
// ACME server (RFC 8555 + RFC 9773 ARI) — Phase 1a foundation.
// Like SCEP/EST, ACME is a wire-protocol surface (JWS-signed JSON
// over HTTPS per RFC 7515) whose semantics are dictated by the RFC
// rather than by an OpenAPI document. Documenting every endpoint
// in openapi.yaml would duplicate RFC 8555 §7.1 + §7.2 with no
// information gain. The canonical reference is docs/acme-server.md.
// Subsequent phases will extend this list with new-account,
// new-order, finalize, authz, challenge, cert, key-change,
// revoke-cert, renewal-info — each gets its own exception entry
// in the same commit that lands the route.
"GET /acme/profile/{id}/directory": "RFC 8555 §7.1.1 directory; documented in docs/acme-server.md",
"HEAD /acme/profile/{id}/new-nonce": "RFC 8555 §7.2 new-nonce; documented in docs/acme-server.md",
"GET /acme/profile/{id}/new-nonce": "RFC 8555 §7.2 new-nonce (GET form); documented in docs/acme-server.md",
"GET /acme/directory": "RFC 8555 §7.1.1 directory (default-profile shorthand); documented in docs/acme-server.md",
"HEAD /acme/new-nonce": "RFC 8555 §7.2 new-nonce (default-profile shorthand); documented in docs/acme-server.md",
"GET /acme/new-nonce": "RFC 8555 §7.2 new-nonce GET (default-profile shorthand); documented in docs/acme-server.md",
} }
func TestRouter_OpenAPIParity(t *testing.T) { func TestRouter_OpenAPIParity(t *testing.T) {
+33
View File
@@ -143,6 +143,19 @@ type HandlerRegistry struct {
// Both endpoints are admin-gated (M-008 pin updated to include // Both endpoints are admin-gated (M-008 pin updated to include
// admin_est.go). // admin_est.go).
AdminEST handler.AdminESTHandler AdminEST handler.AdminESTHandler
// ACME handles RFC 8555 ACME server endpoints under
// /acme/profile/<id>/* and the optional /acme/* shorthand.
// Phase 1a wires:
// GET /acme/profile/{id}/directory
// HEAD /acme/profile/{id}/new-nonce
// GET /acme/profile/{id}/new-nonce
// GET /acme/directory (shorthand)
// HEAD /acme/new-nonce (shorthand)
// GET /acme/new-nonce (shorthand)
// Subsequent phases add new-account + account/<id>, orders,
// authzs, challenges, key-change, revoke-cert, ARI. See
// docs/acme-server.md for the configuration reference.
ACME handler.ACMEHandler
} }
// RegisterHandlers sets up all API routes with their handlers. // RegisterHandlers sets up all API routes with their handlers.
@@ -389,6 +402,26 @@ func (r *Router) RegisterHandlers(reg HandlerRegistry) {
r.Register("DELETE /api/v1/health-checks/{id}", http.HandlerFunc(reg.HealthChecks.DeleteHealthCheck)) r.Register("DELETE /api/v1/health-checks/{id}", http.HandlerFunc(reg.HealthChecks.DeleteHealthCheck))
r.Register("GET /api/v1/health-checks/{id}/history", http.HandlerFunc(reg.HealthChecks.GetHealthCheckHistory)) r.Register("GET /api/v1/health-checks/{id}/history", http.HandlerFunc(reg.HealthChecks.GetHealthCheckHistory))
r.Register("POST /api/v1/health-checks/{id}/acknowledge", http.HandlerFunc(reg.HealthChecks.AcknowledgeHealthCheck)) r.Register("POST /api/v1/health-checks/{id}/acknowledge", http.HandlerFunc(reg.HealthChecks.AcknowledgeHealthCheck))
// ACME (RFC 8555 + RFC 9773 ARI) server endpoints. Phase 1a wires
// directory + new-nonce only; Phases 1b-4 extend with the JWS-
// authenticated POST surface (new-account, new-order, finalize,
// challenges, revoke, ARI). Routes go through r.Register so the
// standard middleware chain (CORS, body-limit, audit) applies —
// ACME's own per-op metrics + RFC 8555 §6.5 Replay-Nonce headers
// are added by the handler.
//
// Per-profile path family (canonical):
r.Register("GET /acme/profile/{id}/directory", http.HandlerFunc(reg.ACME.Directory))
r.Register("HEAD /acme/profile/{id}/new-nonce", http.HandlerFunc(reg.ACME.NewNonce))
r.Register("GET /acme/profile/{id}/new-nonce", http.HandlerFunc(reg.ACME.NewNonce))
// Default-profile shorthand. The handler's profile-resolution path
// returns userActionRequired (RFC 7807 + RFC 8555 §6.7) when
// CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID is unset; when set it
// dispatches to the same handler as the per-profile path.
r.Register("GET /acme/directory", http.HandlerFunc(reg.ACME.Directory))
r.Register("HEAD /acme/new-nonce", http.HandlerFunc(reg.ACME.NewNonce))
r.Register("GET /acme/new-nonce", http.HandlerFunc(reg.ACME.NewNonce))
} }
// RegisterESTHandlers sets up EST (RFC 7030) routes under // RegisterESTHandlers sets up EST (RFC 7030) routes under
+132
View File
@@ -28,6 +28,12 @@ type Config struct {
SCEP SCEPConfig SCEP SCEPConfig
Verification VerificationConfig Verification VerificationConfig
ACME ACMEConfig ACME ACMEConfig
// ACMEServer is the SERVER-side ACME (RFC 8555 + RFC 9773 ARI)
// configuration. Distinct from ACME above (which is the consumer-
// side issuer connector that talks UP to Let's Encrypt / pebble).
// Server uses CERTCTL_ACME_SERVER_* prefix throughout so the two
// namespaces stay unambiguous in operator docs and shell env.
ACMEServer ACMEServerConfig
Vault VaultConfig Vault VaultConfig
DigiCert DigiCertConfig DigiCert DigiCertConfig
Sectigo SectigoConfig Sectigo SectigoConfig
@@ -645,6 +651,108 @@ type ACMEConfig struct {
Insecure bool Insecure bool
} }
// ACMEServerConfig is the SERVER-side ACME (RFC 8555 + RFC 9773 ARI)
// configuration. Distinct from ACMEConfig (the consumer-side issuer
// connector that talks UP to Let's Encrypt / pebble). Server uses
// CERTCTL_ACME_SERVER_* prefix throughout to avoid colliding with
// the existing CERTCTL_ACME_* consumer namespace (DIRECTORY_URL /
// PROFILE / CHALLENGE_TYPE / etc.).
//
// Phase 1a wires Enabled / DefaultAuthMode / DefaultProfileID /
// NonceTTL / DirectoryMeta. Order/Authz TTLs + the per-challenge-type
// concurrency caps + DNS01 resolver are reserved fields populated for
// Phases 2/3 — exposing them now keeps the env-var surface stable
// from day one (operators can set CERTCTL_ACME_SERVER_HTTP01_CONCURRENCY
// today; it's a no-op until Phase 3 reads it).
type ACMEServerConfig struct {
// Enabled is the master toggle. When false, the ACME handler is
// constructed (so the registry-shape stays stable) but no routes
// are registered. Operators flip this on after configuring the
// per-profile auth_mode column on certificate_profiles.
// Setting: CERTCTL_ACME_SERVER_ENABLED.
Enabled bool
// DefaultAuthMode sets the default value of certificate_profiles.acme_auth_mode
// for NEWLY-created profiles (e.g. via API). Existing profile rows
// retain whatever value they were created with — per-profile
// values, once set, override this default. Architecture decision:
// auth mode is per-profile, not server-wide.
// Valid: "trust_authenticated" (default) or "challenge".
// Setting: CERTCTL_ACME_SERVER_DEFAULT_AUTH_MODE.
DefaultAuthMode string
// DefaultProfileID, when set, activates the /acme/* shorthand
// path family — /acme/directory mirrors
// /acme/profile/<DefaultProfileID>/directory etc. When empty,
// requests to the shorthand return RFC 7807
// userActionRequired with a hint pointing at the per-profile
// path. Single-profile deployments can set this for ergonomic
// client config; multi-profile deployments leave it empty.
// Setting: CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID.
DefaultProfileID string
// NonceTTL is how long an issued ACME nonce remains valid before
// the server rejects it as expired. RFC 8555 §6.5.1 allows the
// server to set any TTL; 5 minutes is the operator-friendly
// default (clock-skew tolerant without enabling long-replay
// attacks). Setting: CERTCTL_ACME_SERVER_NONCE_TTL.
NonceTTL time.Duration
// OrderTTL is the lifetime of an unfulfilled ACME order. Phase 2
// reads; Phase 1a reserves the field. Default: 24h.
// Setting: CERTCTL_ACME_SERVER_ORDER_TTL.
OrderTTL time.Duration
// AuthzTTL is the lifetime of an unfulfilled authorization. Phase 2
// reads; Phase 1a reserves. Default: 24h.
// Setting: CERTCTL_ACME_SERVER_AUTHZ_TTL.
AuthzTTL time.Duration
// HTTP01ConcurrencyMax is the bound on concurrent HTTP-01 validators
// (semaphore weight). Phase 3 reads; Phase 1a reserves. Default: 10.
// Setting: CERTCTL_ACME_SERVER_HTTP01_CONCURRENCY.
HTTP01ConcurrencyMax int
// DNS01Resolver is the resolver address used by the DNS-01 validator.
// Phase 3 reads; Phase 1a reserves. Default: "8.8.8.8:53".
// Setting: CERTCTL_ACME_SERVER_DNS01_RESOLVER.
DNS01Resolver string
// DNS01ConcurrencyMax bounds concurrent DNS-01 validators. Default: 10.
// Setting: CERTCTL_ACME_SERVER_DNS01_CONCURRENCY.
DNS01ConcurrencyMax int
// TLSALPN01ConcurrencyMax bounds concurrent TLS-ALPN-01 validators.
// Default: 10. Setting: CERTCTL_ACME_SERVER_TLSALPN01_CONCURRENCY.
TLSALPN01ConcurrencyMax int
// DirectoryMeta is the optional metadata advertised in the directory
// document per RFC 8555 §7.1.1.
DirectoryMeta ACMEServerDirectoryMeta
}
// ACMEServerDirectoryMeta holds the optional fields of the directory
// `meta` block. Each is populated from a CERTCTL_ACME_SERVER_*
// env var; an all-empty struct produces an omitempty-suppressed JSON
// `meta` field on the directory.
type ACMEServerDirectoryMeta struct {
// TermsOfService is a URL pointing to the operator's ToS document.
// Setting: CERTCTL_ACME_SERVER_TOS_URL.
TermsOfService string
// Website is a URL pointing to the operator's homepage.
// Setting: CERTCTL_ACME_SERVER_WEBSITE.
Website string
// CAAIdentities is the list of CAA-record domain values clients
// should authorize for this server. Setting:
// CERTCTL_ACME_SERVER_CAA_IDENTITIES (comma-separated).
CAAIdentities []string
// ExternalAccountRequired, when true, signals to clients that
// new-account requires an EAB token (RFC 8555 §7.3.4). Phase 1a
// advertises but does not enforce; EAB enforcement is a follow-up.
// Setting: CERTCTL_ACME_SERVER_EAB_REQUIRED.
ExternalAccountRequired bool
}
// OpenSSLConfig contains OpenSSL/Custom CA issuer connector configuration. // OpenSSLConfig contains OpenSSL/Custom CA issuer connector configuration.
type OpenSSLConfig struct { type OpenSSLConfig struct {
// SignScript is the path to a shell script that signs certificate requests. // SignScript is the path to a shell script that signs certificate requests.
@@ -1646,6 +1754,30 @@ func Load() (*Config, error) {
ARIEnabled: getEnvBool("CERTCTL_ACME_ARI_ENABLED", false), ARIEnabled: getEnvBool("CERTCTL_ACME_ARI_ENABLED", false),
Insecure: getEnvBool("CERTCTL_ACME_INSECURE", false), Insecure: getEnvBool("CERTCTL_ACME_INSECURE", false),
}, },
// ACME server (RFC 8555 + RFC 9773 ARI) — distinct from the
// consumer-side ACME issuer connector above. Server uses
// CERTCTL_ACME_SERVER_* prefix throughout (audit fix #11).
// Phase 1a wires Enabled / DefaultAuthMode / DefaultProfileID /
// NonceTTL + DirectoryMeta. Order/Authz TTLs + concurrency
// caps + DNS01 resolver are reserved (Phases 2/3 read).
ACMEServer: ACMEServerConfig{
Enabled: getEnvBool("CERTCTL_ACME_SERVER_ENABLED", false),
DefaultAuthMode: getEnv("CERTCTL_ACME_SERVER_DEFAULT_AUTH_MODE", "trust_authenticated"),
DefaultProfileID: getEnv("CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID", ""),
NonceTTL: getEnvDuration("CERTCTL_ACME_SERVER_NONCE_TTL", 5*time.Minute),
OrderTTL: getEnvDuration("CERTCTL_ACME_SERVER_ORDER_TTL", 24*time.Hour),
AuthzTTL: getEnvDuration("CERTCTL_ACME_SERVER_AUTHZ_TTL", 24*time.Hour),
HTTP01ConcurrencyMax: getEnvInt("CERTCTL_ACME_SERVER_HTTP01_CONCURRENCY", 10),
DNS01Resolver: getEnv("CERTCTL_ACME_SERVER_DNS01_RESOLVER", "8.8.8.8:53"),
DNS01ConcurrencyMax: getEnvInt("CERTCTL_ACME_SERVER_DNS01_CONCURRENCY", 10),
TLSALPN01ConcurrencyMax: getEnvInt("CERTCTL_ACME_SERVER_TLSALPN01_CONCURRENCY", 10),
DirectoryMeta: ACMEServerDirectoryMeta{
TermsOfService: getEnv("CERTCTL_ACME_SERVER_TOS_URL", ""),
Website: getEnv("CERTCTL_ACME_SERVER_WEBSITE", ""),
CAAIdentities: getEnvList("CERTCTL_ACME_SERVER_CAA_IDENTITIES", nil),
ExternalAccountRequired: getEnvBool("CERTCTL_ACME_SERVER_EAB_REQUIRED", false),
},
},
Digest: DigestConfig{ Digest: DigestConfig{
Enabled: getEnvBool("CERTCTL_DIGEST_ENABLED", false), Enabled: getEnvBool("CERTCTL_DIGEST_ENABLED", false),
Interval: getEnvDuration("CERTCTL_DIGEST_INTERVAL", 24*time.Hour), Interval: getEnvDuration("CERTCTL_DIGEST_INTERVAL", 24*time.Hour),
+86
View File
@@ -0,0 +1,86 @@
// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
package postgres
import (
"context"
"database/sql"
"fmt"
"time"
)
// ACMERepository implements the ACME server's persistence layer
// (RFC 8555 + RFC 9773 ARI). Phase 1a wires only nonce operations
// (IssueNonce + ConsumeNonce); Phase 1b extends with account CRUD,
// Phase 2 with order/authz/challenge CRUD, Phase 4 with the
// key-rollover atomic update path.
type ACMERepository struct {
db *sql.DB
}
// NewACMERepository constructs an ACMERepository wrapping the supplied
// *sql.DB. The constructor is symmetric with NewAuditRepository,
// NewProfileRepository, etc. — main.go owns the lifecycle.
func NewACMERepository(db *sql.DB) *ACMERepository {
return &ACMERepository{db: db}
}
// IssueNonce inserts a new ACME nonce row with the given TTL. The
// caller (typically ACMEService.IssueNonce) is responsible for
// generating the nonce string itself via acme.GenerateNonce; this
// method is the persistence write.
//
// RFC 8555 §6.5: nonces issued by the server can be redeemed exactly
// once. The PRIMARY KEY guarantees insertion uniqueness; ConsumeNonce
// flips the `used` column atomically so a replay sees `used=true`.
func (r *ACMERepository) IssueNonce(ctx context.Context, nonce string, ttl time.Duration) error {
_, err := r.db.ExecContext(ctx, `
INSERT INTO acme_nonces (nonce, issued_at, expires_at, used)
VALUES ($1, NOW(), $2, FALSE)
`, nonce, time.Now().Add(ttl))
if err != nil {
return fmt.Errorf("acme: insert nonce: %w", err)
}
return nil
}
// ConsumeNonce flips the nonce's `used` column to true atomically.
// Returns sql.ErrNoRows if:
//
// - the nonce was never issued (caller's payload was forged or
// truncated)
// - the nonce was already consumed (replay attempt)
// - the nonce has expired (CERTCTL_ACME_SERVER_NONCE_TTL window
// elapsed since issuance)
//
// All three failure modes are mapped by the JWS verifier (Phase 1b)
// to urn:ietf:params:acme:error:badNonce per RFC 8555 §6.5.1. Phase
// 1a does not yet call ConsumeNonce — the JWS-authenticated POST
// path arrives in Phase 1b.
//
// The single UPDATE statement is the atomic primitive: a concurrent
// second consume races for the same row, but only one of them flips
// `used` from false → true. Postgres's row-level locking serializes
// the writes; the loser's UPDATE matches zero rows (because used is
// already true) and returns sql.ErrNoRows.
func (r *ACMERepository) ConsumeNonce(ctx context.Context, nonce string) error {
res, err := r.db.ExecContext(ctx, `
UPDATE acme_nonces
SET used = TRUE
WHERE nonce = $1
AND used = FALSE
AND expires_at > NOW()
`, nonce)
if err != nil {
return fmt.Errorf("acme: consume nonce: %w", err)
}
n, err := res.RowsAffected()
if err != nil {
return fmt.Errorf("acme: consume nonce rows affected: %w", err)
}
if n == 0 {
return sql.ErrNoRows
}
return nil
}
+209
View File
@@ -0,0 +1,209 @@
// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
package service
import (
"context"
"errors"
"fmt"
"sync/atomic"
"time"
"github.com/shankar0123/certctl/internal/api/acme"
"github.com/shankar0123/certctl/internal/config"
"github.com/shankar0123/certctl/internal/domain"
"github.com/shankar0123/certctl/internal/repository"
)
// ACMERepo is the persistence-layer surface ACMEService consumes for
// nonce + (later phases) account / order / authz / challenge state.
// Phase 1a wires only the nonce path; the interface is tightened in
// Phase 1b along with the AccountService.
//
// Defining the interface in the service package (rather than
// internal/repository/interfaces.go) keeps the cross-phase blast
// radius small: when Phase 1b adds CreateAccountWithTx /
// GetAccountByThumbprint / etc., only this file's interface and the
// concrete postgres ACMERepository move together. Mock implementations
// in tests satisfy this interface without depending on the postgres
// package.
type ACMERepo interface {
IssueNonce(ctx context.Context, nonce string, ttl time.Duration) error
ConsumeNonce(ctx context.Context, nonce string) error
}
// profileLookup is the minimum surface ACMEService needs to resolve a
// per-profile request. Defined as an interface (rather than taking a
// concrete *postgres.ProfileRepository) so tests can inject an in-memory
// fake without spinning up Postgres.
type profileLookup interface {
Get(ctx context.Context, id string) (*domain.CertificateProfile, error)
}
// ACMEService orchestrates the ACME server's RFC 8555 surface. Phase 1a
// implements:
//
// - BuildDirectory: returns the per-profile directory document.
// - IssueNonce: returns a Replay-Nonce, persisted with TTL.
//
// Phase 1b will extend with VerifyJWS, NewAccount, LookupAccount,
// UpdateAccount, DeactivateAccount.
//
// The struct deliberately holds raw config rather than per-field
// extracted values — the directory builder uses 4 of the 11 fields
// and reading them lazily keeps the constructor signature tight.
type ACMEService struct {
repo ACMERepo
profiles profileLookup
cfg config.ACMEServerConfig
metrics *ACMEMetrics
}
// NewACMEService constructs an ACMEService. The constructor matches
// certctl's per-service convention: required dependencies in the
// argument list (repo, profile lookup, config), optional wiring via
// post-construction setters (metrics is wired now to keep the
// Phase-1a-only footprint clean; Phase 1b adds SetTransactor +
// SetAuditService for the JWS-authenticated POST path).
func NewACMEService(repo ACMERepo, profiles profileLookup, cfg config.ACMEServerConfig) *ACMEService {
return &ACMEService{
repo: repo,
profiles: profiles,
cfg: cfg,
metrics: NewACMEMetrics(),
}
}
// Metrics returns the per-op counter snapshotter. cmd/server/main.go
// passes this into MetricsHandler so the Prometheus exposer picks up
// the per-op signals.
func (s *ACMEService) Metrics() *ACMEMetrics { return s.metrics }
// ErrACMEUserActionRequired is returned by BuildDirectory when the
// caller hits the /acme/* shorthand path without
// CERTCTL_ACME_SERVER_DEFAULT_PROFILE_ID being set. Handler maps to
// RFC 7807 + RFC 8555 §6.7 userActionRequired.
var ErrACMEUserActionRequired = errors.New("acme: default profile not configured; use /acme/profile/<id>/*")
// ErrACMEProfileNotFound is returned when the profile in the request
// path doesn't exist. Handler maps to HTTP 404 (NOT 500 — the
// distinction is operator-meaningful: 404 says "fix your URL," 500
// says "something is wrong server-side").
var ErrACMEProfileNotFound = errors.New("acme: profile not found")
// BuildDirectory constructs the per-profile directory document.
//
// profileID resolution:
// - non-empty: look up that profile; ErrACMEProfileNotFound on miss.
// - empty + cfg.DefaultProfileID set: substitute the default.
// - empty + cfg.DefaultProfileID unset: ErrACMEUserActionRequired.
//
// baseURL is the per-profile base path the directory's URL fields are
// constructed against. The handler computes baseURL from the inbound
// request (scheme + host + /acme/profile/<id>) and passes it in;
// keeping the URL composition in the handler avoids embedding HTTP
// concerns in the service layer.
//
// On success the metrics counter for the directory op increments;
// failures bump the failure variant of the same counter.
func (s *ACMEService) BuildDirectory(ctx context.Context, profileID, baseURL string) (*acme.Directory, error) {
profileID, err := s.resolveProfile(ctx, profileID)
if err != nil {
s.metrics.bump(&s.metrics.DirectoryFailureTotal)
return nil, err
}
dir := acme.BuildDirectory(
baseURL,
s.cfg.DirectoryMeta.TermsOfService,
s.cfg.DirectoryMeta.Website,
s.cfg.DirectoryMeta.CAAIdentities,
s.cfg.DirectoryMeta.ExternalAccountRequired,
// Phase 1a: ARI is non-functional. The Phase 4 commit flips this
// to true once the renewal-info handler ships.
false,
)
_ = profileID // Phase 1b will use the resolved profile to read
// acme_auth_mode + record per-profile metrics. Phase 1a
// only needs the existence check above.
s.metrics.bump(&s.metrics.DirectoryTotal)
return dir, nil
}
// IssueNonce generates a fresh ACME nonce, persists it with the
// configured TTL, and returns the encoded string for the
// Replay-Nonce header.
//
// RFC 8555 §6.5: every successful ACME response carries a
// Replay-Nonce. Phase 1a wires this via the directory + new-nonce
// handlers; Phase 1b extends with new-account + account/<id> POST
// responses (the JWS-authenticated paths).
func (s *ACMEService) IssueNonce(ctx context.Context) (string, error) {
nonce, err := acme.GenerateNonce()
if err != nil {
s.metrics.bump(&s.metrics.NewNonceFailureTotal)
return "", fmt.Errorf("acme: generate nonce: %w", err)
}
if err := s.repo.IssueNonce(ctx, nonce, s.cfg.NonceTTL); err != nil {
s.metrics.bump(&s.metrics.NewNonceFailureTotal)
return "", fmt.Errorf("acme: persist nonce: %w", err)
}
s.metrics.bump(&s.metrics.NewNonceTotal)
return nonce, nil
}
// resolveProfile applies the default-profile fallback and confirms the
// profile exists. Returns the resolved (canonical) profileID on
// success. Centralizing the resolution here keeps every Phase
// 1a/1b/2/3/4 endpoint's "which profile is this request bound to"
// logic uniform.
func (s *ACMEService) resolveProfile(ctx context.Context, profileID string) (string, error) {
if profileID == "" {
if s.cfg.DefaultProfileID == "" {
return "", ErrACMEUserActionRequired
}
profileID = s.cfg.DefaultProfileID
}
_, err := s.profiles.Get(ctx, profileID)
if err != nil {
if errors.Is(err, repository.ErrNotFound) {
return "", ErrACMEProfileNotFound
}
return "", fmt.Errorf("acme: lookup profile: %w", err)
}
return profileID, nil
}
// ACMEMetrics is the per-op counter table for the ACME server. Mirrors
// the IssuanceMetrics / DeployCounters pattern (atomic.Uint64 + a
// Snapshot method that emits stable tuples). Phase 1a tracks just
// directory + new-nonce; subsequent phases add new-account / new-order
// / etc.
type ACMEMetrics struct {
DirectoryTotal atomic.Uint64
DirectoryFailureTotal atomic.Uint64
NewNonceTotal atomic.Uint64
NewNonceFailureTotal atomic.Uint64
}
// NewACMEMetrics returns a zeroed counter table. Concurrent callers
// can bump counters without external synchronization (atomic.Uint64
// is the synchronization primitive).
func NewACMEMetrics() *ACMEMetrics { return &ACMEMetrics{} }
// bump increments a single atomic counter. Centralized so the call
// sites in BuildDirectory + IssueNonce are uniform.
func (m *ACMEMetrics) bump(c *atomic.Uint64) { c.Add(1) }
// Snapshot emits the current counter values as a map (op → count).
// Naming is certctl_acme_<op>_total per frozen decision 0.10
// (cardinality discipline) so the Prometheus exposer can lift them
// directly without per-op stringly-typed branching.
func (m *ACMEMetrics) Snapshot() map[string]uint64 {
return map[string]uint64{
"certctl_acme_directory_total": m.DirectoryTotal.Load(),
"certctl_acme_directory_failures_total": m.DirectoryFailureTotal.Load(),
"certctl_acme_new_nonce_total": m.NewNonceTotal.Load(),
"certctl_acme_new_nonce_failures_total": m.NewNonceFailureTotal.Load(),
}
}
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// Copyright (c) certctl
// SPDX-License-Identifier: BSL-1.1
package service
import (
"context"
"errors"
"testing"
"time"
"github.com/shankar0123/certctl/internal/config"
"github.com/shankar0123/certctl/internal/domain"
"github.com/shankar0123/certctl/internal/repository"
)
// fakeACMERepo is an in-memory ACMERepo for tests. It tracks issued
// nonces in a map; Consume removes the entry to model one-shot use.
type fakeACMERepo struct {
issued map[string]time.Time // nonce → expires_at
issueErr error
}
func newFakeACMERepo() *fakeACMERepo {
return &fakeACMERepo{issued: make(map[string]time.Time)}
}
func (f *fakeACMERepo) IssueNonce(ctx context.Context, nonce string, ttl time.Duration) error {
if f.issueErr != nil {
return f.issueErr
}
f.issued[nonce] = time.Now().Add(ttl)
return nil
}
func (f *fakeACMERepo) ConsumeNonce(ctx context.Context, nonce string) error {
exp, ok := f.issued[nonce]
if !ok {
return errors.New("not found")
}
if time.Now().After(exp) {
return errors.New("expired")
}
delete(f.issued, nonce)
return nil
}
// fakeProfileLookup is an in-memory profileLookup that returns the
// profile by ID. Unknown IDs return repository.ErrNotFound (the
// canonical sentinel ACMEService maps to ErrACMEProfileNotFound).
type fakeProfileLookup struct {
profiles map[string]*domain.CertificateProfile
}
func (f *fakeProfileLookup) Get(ctx context.Context, id string) (*domain.CertificateProfile, error) {
p, ok := f.profiles[id]
if !ok {
return nil, repository.ErrNotFound
}
return p, nil
}
func newSvc(t *testing.T, cfg config.ACMEServerConfig, profiles map[string]*domain.CertificateProfile) (*ACMEService, *fakeACMERepo) {
t.Helper()
repo := newFakeACMERepo()
pl := &fakeProfileLookup{profiles: profiles}
return NewACMEService(repo, pl, cfg), repo
}
func TestBuildDirectory_HappyPath(t *testing.T) {
cfg := config.ACMEServerConfig{
NonceTTL: 5 * time.Minute,
}
cfg.DirectoryMeta.TermsOfService = "https://example.com/tos"
cfg.DirectoryMeta.Website = "https://example.com"
svc, _ := newSvc(t, cfg, map[string]*domain.CertificateProfile{
"prof-corp": {ID: "prof-corp", Name: "corp"},
})
dir, err := svc.BuildDirectory(context.Background(), "prof-corp", "https://server/acme/profile/prof-corp")
if err != nil {
t.Fatalf("BuildDirectory: %v", err)
}
if dir == nil {
t.Fatal("dir is nil")
}
if dir.NewNonce != "https://server/acme/profile/prof-corp/new-nonce" {
t.Errorf("NewNonce = %q", dir.NewNonce)
}
if dir.Meta == nil || dir.Meta.TermsOfService != "https://example.com/tos" {
t.Errorf("meta tos = %+v", dir.Meta)
}
if got := svc.Metrics().DirectoryTotal.Load(); got != 1 {
t.Errorf("DirectoryTotal = %d, want 1", got)
}
}
func TestBuildDirectory_UnknownProfile(t *testing.T) {
cfg := config.ACMEServerConfig{NonceTTL: 5 * time.Minute}
svc, _ := newSvc(t, cfg, nil)
_, err := svc.BuildDirectory(context.Background(), "prof-missing", "https://server/acme/profile/prof-missing")
if !errors.Is(err, ErrACMEProfileNotFound) {
t.Errorf("err = %v, want ErrACMEProfileNotFound", err)
}
if got := svc.Metrics().DirectoryFailureTotal.Load(); got != 1 {
t.Errorf("DirectoryFailureTotal = %d, want 1", got)
}
}
func TestBuildDirectory_EmptyProfileNoDefault(t *testing.T) {
cfg := config.ACMEServerConfig{NonceTTL: 5 * time.Minute}
svc, _ := newSvc(t, cfg, nil)
_, err := svc.BuildDirectory(context.Background(), "", "https://server/acme")
if !errors.Is(err, ErrACMEUserActionRequired) {
t.Errorf("err = %v, want ErrACMEUserActionRequired", err)
}
}
func TestBuildDirectory_EmptyProfileWithDefault(t *testing.T) {
cfg := config.ACMEServerConfig{
NonceTTL: 5 * time.Minute,
DefaultProfileID: "prof-default",
}
svc, _ := newSvc(t, cfg, map[string]*domain.CertificateProfile{
"prof-default": {ID: "prof-default", Name: "default"},
})
dir, err := svc.BuildDirectory(context.Background(), "", "https://server/acme")
if err != nil {
t.Fatalf("BuildDirectory: %v", err)
}
if dir.NewNonce != "https://server/acme/new-nonce" {
t.Errorf("NewNonce = %q (shorthand path)", dir.NewNonce)
}
}
func TestIssueNonce_HappyPath(t *testing.T) {
cfg := config.ACMEServerConfig{NonceTTL: 5 * time.Minute}
svc, repo := newSvc(t, cfg, nil)
n, err := svc.IssueNonce(context.Background())
if err != nil {
t.Fatalf("IssueNonce: %v", err)
}
if len(n) != 43 {
t.Errorf("nonce length = %d, want 43 (base64url-no-pad of 32 bytes)", len(n))
}
if _, ok := repo.issued[n]; !ok {
t.Errorf("issued nonce was not persisted")
}
if got := svc.Metrics().NewNonceTotal.Load(); got != 1 {
t.Errorf("NewNonceTotal = %d, want 1", got)
}
}
func TestIssueNonce_RepoFailure(t *testing.T) {
cfg := config.ACMEServerConfig{NonceTTL: 5 * time.Minute}
svc, repo := newSvc(t, cfg, nil)
repo.issueErr = errors.New("disk full")
_, err := svc.IssueNonce(context.Background())
if err == nil {
t.Fatal("expected error from IssueNonce when repo fails")
}
if got := svc.Metrics().NewNonceFailureTotal.Load(); got != 1 {
t.Errorf("NewNonceFailureTotal = %d, want 1", got)
}
}
func TestACMEMetrics_Snapshot(t *testing.T) {
m := NewACMEMetrics()
m.DirectoryTotal.Store(7)
m.NewNonceTotal.Store(11)
m.NewNonceFailureTotal.Store(2)
snap := m.Snapshot()
if snap["certctl_acme_directory_total"] != 7 {
t.Errorf("directory_total = %d", snap["certctl_acme_directory_total"])
}
if snap["certctl_acme_new_nonce_total"] != 11 {
t.Errorf("new_nonce_total = %d", snap["certctl_acme_new_nonce_total"])
}
if snap["certctl_acme_new_nonce_failures_total"] != 2 {
t.Errorf("new_nonce_failures_total = %d", snap["certctl_acme_new_nonce_failures_total"])
}
}
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-- Reverse of 000025_acme_server.up.sql.
--
-- Drops in reverse-dependency order: challenges → authzs → orders →
-- nonces → accounts (FKs cascade upward), then strips the per-profile
-- acme_auth_mode column from certificate_profiles.
DROP INDEX IF EXISTS idx_acme_challenges_authz;
DROP TABLE IF EXISTS acme_challenges;
DROP INDEX IF EXISTS idx_acme_authz_status;
DROP INDEX IF EXISTS idx_acme_authz_order;
DROP TABLE IF EXISTS acme_authorizations;
DROP INDEX IF EXISTS idx_acme_orders_expires;
DROP INDEX IF EXISTS idx_acme_orders_status;
DROP INDEX IF EXISTS idx_acme_orders_account;
DROP TABLE IF EXISTS acme_orders;
DROP INDEX IF EXISTS idx_acme_nonces_expires;
DROP TABLE IF EXISTS acme_nonces;
DROP INDEX IF EXISTS idx_acme_accounts_status;
DROP INDEX IF EXISTS idx_acme_accounts_jwk_thumb;
DROP TABLE IF EXISTS acme_accounts;
ALTER TABLE certificate_profiles
DROP CONSTRAINT IF EXISTS certificate_profiles_acme_auth_mode_chk;
ALTER TABLE certificate_profiles
DROP COLUMN IF EXISTS acme_auth_mode;
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-- ACME Server (RFC 8555 + RFC 9773 ARI) — Phase 1a foundation.
--
-- Adds the per-profile auth-mode column on certificate_profiles plus
-- the 5 ACME state tables (accounts, orders, authorizations, challenges,
-- nonces). Phase 1a actively uses only `acme_nonces`; Phase 1b consumes
-- `acme_accounts`; Phases 2-4 consume the rest. All five tables ship
-- in this migration so the schema is stable from day one.
--
-- Per the architecture decision documented in docs/acme-server.md,
-- auth_mode is per-profile (NOT a server-wide env var). One certctl-server
-- can serve `trust_authenticated` for an internal-PKI profile AND
-- `challenge` for a public-trust-style profile simultaneously.
--
-- Idempotent (IF NOT EXISTS / IF EXISTS) per certctl architecture
-- decision; safe to re-run.
-- 1. Add per-profile auth_mode to certificate_profiles.
-- 'trust_authenticated' (default) — JWS-authenticated client trusted
-- to issue for any identifier the profile policy allows; no per-
-- identifier ownership proof. The most common certctl use case.
-- 'challenge' — full HTTP-01 + DNS-01 + TLS-ALPN-01 validation per
-- RFC 8555 §8. For public-trust-style PKI.
ALTER TABLE certificate_profiles
ADD COLUMN IF NOT EXISTS acme_auth_mode TEXT NOT NULL DEFAULT 'trust_authenticated';
-- Constraint name pinned so the .down.sql can drop it deterministically.
-- Wrapped in DO block so re-running the migration on a database that
-- already has the constraint doesn't fail.
DO $$
BEGIN
IF NOT EXISTS (
SELECT 1 FROM pg_constraint
WHERE conname = 'certificate_profiles_acme_auth_mode_chk'
) THEN
ALTER TABLE certificate_profiles
ADD CONSTRAINT certificate_profiles_acme_auth_mode_chk
CHECK (acme_auth_mode IN ('trust_authenticated', 'challenge'));
END IF;
END $$;
-- 2. acme_accounts — RFC 8555 §7.1.2.
-- account_id is 'acme-acc-' + base32-encoded random per certctl's
-- human-readable-prefix convention. jwk_thumbprint is RFC 7638
-- SHA-256 thumbprint of the canonicalized JWK; the (profile_id,
-- jwk_thumbprint) UNIQUE constraint enforces "one account per
-- keypair per profile" — RFC 8555 §7.3.1 idempotent semantics.
--
-- Phase 1a creates the table; Phase 1b adds CRUD methods.
CREATE TABLE IF NOT EXISTS acme_accounts (
account_id TEXT PRIMARY KEY,
jwk_thumbprint TEXT NOT NULL,
jwk_pem TEXT NOT NULL,
contact TEXT[],
status TEXT NOT NULL,
profile_id TEXT NOT NULL,
owner_id TEXT,
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
FOREIGN KEY (profile_id) REFERENCES certificate_profiles(id),
FOREIGN KEY (owner_id) REFERENCES owners(id),
UNIQUE (profile_id, jwk_thumbprint)
);
CREATE INDEX IF NOT EXISTS idx_acme_accounts_jwk_thumb ON acme_accounts(profile_id, jwk_thumbprint);
CREATE INDEX IF NOT EXISTS idx_acme_accounts_status ON acme_accounts(status) WHERE status = 'valid';
-- 3. acme_orders — RFC 8555 §7.1.3.
-- identifiers stored as JSONB to keep the DNS-name list simple
-- (ACME currently has only the dns identifier type in scope; future
-- types like ip can extend without schema migration).
-- error stored as JSONB (RFC 7807 Problem+JSON shape on failure).
-- certificate_id FKs into managed_certificates so the existing cert
-- pipeline owns the leaf data.
CREATE TABLE IF NOT EXISTS acme_orders (
order_id TEXT PRIMARY KEY,
account_id TEXT NOT NULL,
identifiers JSONB NOT NULL,
status TEXT NOT NULL,
expires_at TIMESTAMPTZ NOT NULL,
not_before TIMESTAMPTZ,
not_after TIMESTAMPTZ,
error JSONB,
csr_pem TEXT,
certificate_id TEXT,
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
FOREIGN KEY (account_id) REFERENCES acme_accounts(account_id),
FOREIGN KEY (certificate_id) REFERENCES managed_certificates(id)
);
CREATE INDEX IF NOT EXISTS idx_acme_orders_account ON acme_orders(account_id);
CREATE INDEX IF NOT EXISTS idx_acme_orders_status ON acme_orders(status) WHERE status IN ('pending', 'ready', 'processing');
CREATE INDEX IF NOT EXISTS idx_acme_orders_expires ON acme_orders(expires_at);
-- 4. acme_authorizations — RFC 8555 §7.1.4.
CREATE TABLE IF NOT EXISTS acme_authorizations (
authz_id TEXT PRIMARY KEY,
order_id TEXT NOT NULL,
identifier JSONB NOT NULL,
status TEXT NOT NULL,
expires_at TIMESTAMPTZ NOT NULL,
wildcard BOOLEAN NOT NULL DEFAULT FALSE,
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
FOREIGN KEY (order_id) REFERENCES acme_orders(order_id)
);
CREATE INDEX IF NOT EXISTS idx_acme_authz_order ON acme_authorizations(order_id);
CREATE INDEX IF NOT EXISTS idx_acme_authz_status ON acme_authorizations(status) WHERE status IN ('pending', 'processing');
-- 5. acme_challenges — RFC 8555 §8.
CREATE TABLE IF NOT EXISTS acme_challenges (
challenge_id TEXT PRIMARY KEY,
authz_id TEXT NOT NULL,
type TEXT NOT NULL,
status TEXT NOT NULL,
token TEXT NOT NULL,
validated_at TIMESTAMPTZ,
error JSONB,
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
FOREIGN KEY (authz_id) REFERENCES acme_authorizations(authz_id)
);
CREATE INDEX IF NOT EXISTS idx_acme_challenges_authz ON acme_challenges(authz_id);
-- 6. acme_nonces — RFC 8555 §6.5.
-- Nonces are short-lived (TTL default 5m, configurable via
-- CERTCTL_ACME_SERVER_NONCE_TTL). DB-backed (NOT in-memory) so
-- they survive server restart — replay protection only works if the
-- server-side store outlasts the client's nonce caching window.
-- Phase 5 adds a scheduler-loop GC sweep; Phase 1a inserts but does
-- not yet GC.
CREATE TABLE IF NOT EXISTS acme_nonces (
nonce TEXT PRIMARY KEY,
issued_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
expires_at TIMESTAMPTZ NOT NULL,
used BOOLEAN NOT NULL DEFAULT FALSE
);
CREATE INDEX IF NOT EXISTS idx_acme_nonces_expires ON acme_nonces(expires_at) WHERE used = FALSE;