[AZ-494] Enable JWT iss/aud validation with fail-fast startup

Option B per user decision: production ships with empty Jwt.Issuer /
Jwt.Audience in appsettings.json so the API process refuses to start
unless JWT_ISSUER + JWT_AUDIENCE env vars are supplied. Development
ships with grep-friendly DEV-ONLY- placeholders so local + docker
flows keep working unchanged.

AuthenticationServiceCollectionExtensions flips ValidateIssuer +
ValidateAudience to true and wires ValidIssuer / ValidAudience via a
new ResolveRequiredOrThrow helper that all three required values
(secret, iss, aud) now share. JwtTokenFactory.Create + CreateExpired
gain optional iss / aud parameters (default null) so existing call
sites compile unchanged. JwtTestHelpers adds MintAuthenticated /
MintExpired wrappers that resolve iss + aud from env, plus
ResolveIssuerOrThrow / ResolveAudienceOrThrow. PerfBootstrap.MintToken
+ Program.cs JWT bootstrap migrated to the new surface so the perf
harness and the integration runner both validate against the same
contract.

Adds 4 fail-fast unit tests (missing/empty issuer + audience), 2
negative integration scenarios (WrongIssuer_Returns401,
WrongAudience_Returns401), and re-tags every existing integration
mint site via MintAuthenticated.

Compose, .env.example, run-tests.sh, run-performance-tests.sh all
load + export JWT_ISSUER + JWT_AUDIENCE alongside JWT_SECRET.

Resolves F-AUTH-2 (security_report.md + owasp_review.md). AC-7
(cross-repo suite/_docs/10_auth.md write) deferred — outside this
workspace; tracked in deploy_cycle2.md R3 follow-up.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Oleksandr Bezdieniezhnykh
2026-05-12 02:28:48 +03:00
parent 080441db5d
commit f979e18811
27 changed files with 543 additions and 57 deletions
@@ -14,7 +14,9 @@ public static class JwtTokenFactory
string subject = DefaultSubject,
TimeSpan? lifetime = null,
IEnumerable<Claim>? extraClaims = null,
string algorithm = SecurityAlgorithms.HmacSha256)
string algorithm = SecurityAlgorithms.HmacSha256,
string? issuer = null,
string? audience = null)
{
ArgumentNullException.ThrowIfNull(secret);
@@ -43,8 +45,8 @@ public static class JwtTokenFactory
}
var token = new JwtSecurityToken(
issuer: null,
audience: null,
issuer: issuer,
audience: audience,
claims: claims,
notBefore: notBefore,
expires: expires,
@@ -53,9 +55,9 @@ public static class JwtTokenFactory
return new JwtSecurityTokenHandler().WriteToken(token);
}
public static string CreateExpired(string secret, string subject = DefaultSubject)
public static string CreateExpired(string secret, string subject = DefaultSubject, string? issuer = null, string? audience = null)
{
return Create(secret, subject, lifetime: TimeSpan.FromMinutes(-5));
return Create(secret, subject, lifetime: TimeSpan.FromMinutes(-5), issuer: issuer, audience: audience);
}
public static string TamperSignature(string token)