refs #744: add AD OIDC MCP identity bridge

This commit is contained in:
devmrko
2026-08-04 14:24:07 +09:00
parent 9f46205057
commit d868d7bbb8
13 changed files with 427 additions and 7 deletions

1
.gitignore vendored
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@@ -1,5 +1,6 @@
# 환경/비밀 — 절대 commit 금지
.env
.runtime/
.env.*
!.env.example

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@@ -0,0 +1,159 @@
-- ============================================================
-- 47_dds_ad_identity_test_setup.sql
--
-- Test-only bridge for the isolated dds.test Active Directory domain.
-- Maps immutable AD objectGUID values to the existing HMM application users
-- 1 and 2, then publishes only their passwordless local DDS END USERs.
--
-- This does NOT validate an AD/OIDC JWT. A verified issuer + subject must be
-- resolved by the MCP application before it uses this bridge.
-- ============================================================
WHENEVER SQLERROR EXIT SQL.SQLCODE
SET ECHO OFF
SET FEEDBACK ON
SET DEFINE OFF
PROMPT === 1. Creating external identity bridge ===
BEGIN
EXECUTE IMMEDIATE q'[
CREATE TABLE cb_external_identity_binding (
issuer VARCHAR2(512) NOT NULL,
subject VARCHAR2(512) NOT NULL,
application_user_id NUMBER NOT NULL,
display_name VARCHAR2(256),
active CHAR(1) DEFAULT 'Y' NOT NULL
CHECK (active IN ('Y', 'N')),
created_at TIMESTAMP DEFAULT SYSTIMESTAMP NOT NULL,
updated_at TIMESTAMP DEFAULT SYSTIMESTAMP NOT NULL,
CONSTRAINT cb_external_identity_binding_pk PRIMARY KEY (issuer, subject)
)]';
EXCEPTION
WHEN OTHERS THEN
IF SQLCODE <> -955 THEN RAISE; END IF;
END;
/
BEGIN
EXECUTE IMMEDIATE 'CREATE INDEX cb_external_identity_binding_user_ix '
|| 'ON cb_external_identity_binding (application_user_id)';
EXCEPTION
WHEN OTHERS THEN
IF SQLCODE <> -955 THEN RAISE; END IF;
END;
/
PROMPT === 2. Creating DDS END USER map ===
BEGIN
EXECUTE IMMEDIATE q'[
CREATE TABLE cb_dds_end_user_map (
application_user_id NUMBER PRIMARY KEY,
end_user_name VARCHAR2(128) NOT NULL UNIQUE,
data_role_name VARCHAR2(128) NOT NULL UNIQUE,
lookup_key_ref VARCHAR2(128) NOT NULL,
grant_name VARCHAR2(128) NOT NULL,
publish_status VARCHAR2(20) NOT NULL
CHECK (publish_status IN ('PENDING', 'PUBLISHED', 'REVOKED', 'FAILED')),
published_at TIMESTAMP,
last_error VARCHAR2(1000)
)]';
EXCEPTION
WHEN OTHERS THEN
IF SQLCODE <> -955 THEN RAISE; END IF;
END;
/
DECLARE
v_active_users NUMBER;
BEGIN
SELECT COUNT(*) INTO v_active_users
FROM cb_app_user
WHERE user_id IN (1, 2) AND active = 'Y';
IF v_active_users <> 2 THEN
RAISE_APPLICATION_ERROR(-20947, 'Expected active HMM application users 1 and 2.');
END IF;
END;
/
PROMPT === 3. Binding dds.test immutable subjects to HMM users ===
MERGE INTO cb_external_identity_binding target
USING (
SELECT 'urn:dds-ad:test' AS issuer,
'fa7ebe4b-aca8-4049-a436-7f3da2d27a9f' AS subject,
1 AS application_user_id,
'dds-alice' AS display_name
FROM dual
UNION ALL
SELECT 'urn:dds-ad:test',
'128546cf-ec0a-4e99-8f51-dfce29280c91',
2,
'dds-bob'
FROM dual
) source
ON (target.issuer = source.issuer AND target.subject = source.subject)
WHEN MATCHED THEN UPDATE SET
target.application_user_id = source.application_user_id,
target.display_name = source.display_name,
target.active = 'Y',
target.updated_at = SYSTIMESTAMP
WHEN NOT MATCHED THEN INSERT (
issuer, subject, application_user_id, display_name, active
) VALUES (
source.issuer, source.subject, source.application_user_id, source.display_name, 'Y'
);
MERGE INTO cb_dds_end_user_map target
USING (
SELECT user_id AS application_user_id,
'DDS_U_' || TO_CHAR(user_id) AS end_user_name,
'DDS_U_' || TO_CHAR(user_id) || '_ROLE' AS data_role_name,
'DDS_OCI_IAM_CLIENT_SECRET_DERIVED_V1' AS lookup_key_ref,
'DDS_MCP_U_' || TO_CHAR(user_id) || '_VECTOR_GRANT' AS grant_name
FROM cb_app_user
WHERE user_id IN (1, 2)
) source
ON (target.application_user_id = source.application_user_id)
WHEN MATCHED THEN UPDATE SET
target.end_user_name = source.end_user_name,
target.data_role_name = source.data_role_name,
target.lookup_key_ref = source.lookup_key_ref,
target.grant_name = source.grant_name,
target.publish_status = 'PENDING',
target.last_error = NULL
WHEN NOT MATCHED THEN INSERT (
application_user_id, end_user_name, data_role_name, lookup_key_ref,
grant_name, publish_status
) VALUES (
source.application_user_id, source.end_user_name, source.data_role_name,
source.lookup_key_ref, source.grant_name, 'PENDING'
);
PROMPT === 4. Publishing DDS identities only (default deny until data grants exist) ===
BEGIN
FOR mapped_user IN (
SELECT application_user_id, end_user_name, data_role_name
FROM cb_dds_end_user_map
WHERE application_user_id IN (1, 2)
ORDER BY application_user_id
) LOOP
EXECUTE IMMEDIATE 'CREATE END USER IF NOT EXISTS "' || mapped_user.end_user_name || '"';
EXECUTE IMMEDIATE 'CREATE DATA ROLE IF NOT EXISTS ' || mapped_user.data_role_name;
EXECUTE IMMEDIATE 'GRANT DATA ROLE ' || mapped_user.data_role_name
|| ' TO "' || mapped_user.end_user_name || '"';
UPDATE cb_dds_end_user_map
SET publish_status = 'PUBLISHED', published_at = SYSTIMESTAMP, last_error = NULL
WHERE application_user_id = mapped_user.application_user_id;
END LOOP;
COMMIT;
END;
/
PROMPT === 5. Identity bridge inventory ===
SELECT b.issuer, b.subject, b.display_name, b.application_user_id,
m.end_user_name, m.data_role_name, m.publish_status
FROM cb_external_identity_binding b
JOIN cb_dds_end_user_map m ON m.application_user_id = b.application_user_id
WHERE b.issuer = 'urn:dds-ad:test'
ORDER BY b.application_user_id;
PROMPT === AD identity to DDS END USER test setup complete ===
EXIT;

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@@ -42,6 +42,10 @@
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-oauth2-jose</artifactId>
</dependency>
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc11</artifactId>

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@@ -2,6 +2,7 @@ package com.cloudhandson.ddsbackoffice;
import com.cloudhandson.ddsbackoffice.config.DdsProperties;
import com.cloudhandson.ddsbackoffice.config.DdsMcpIamProperties;
import com.cloudhandson.ddsbackoffice.config.DdsMcpOidcProperties;
import com.cloudhandson.vpdbackoffice.VpdBackofficeApplication;
import com.cloudhandson.vpdbackoffice.web.DashboardController;
import com.cloudhandson.vpdbackoffice.web.LoginController;
@@ -15,7 +16,7 @@ import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.FilterType;
@SpringBootApplication
@EnableConfigurationProperties({DdsProperties.class, DdsMcpIamProperties.class})
@EnableConfigurationProperties({DdsProperties.class, DdsMcpIamProperties.class, DdsMcpOidcProperties.class})
@MapperScan("com.cloudhandson.vpdbackoffice.mapper")
@ComponentScan(
basePackages = {"com.cloudhandson.ddsbackoffice", "com.cloudhandson.vpdbackoffice"},

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@@ -0,0 +1,29 @@
package com.cloudhandson.ddsbackoffice.config;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.oauth2.core.OAuth2Error;
import org.springframework.security.oauth2.core.DelegatingOAuth2TokenValidator;
import org.springframework.security.oauth2.core.OAuth2TokenValidator;
import org.springframework.security.oauth2.core.OAuth2TokenValidatorResult;
import org.springframework.security.oauth2.jwt.Jwt;
import org.springframework.security.oauth2.jwt.JwtDecoder;
import org.springframework.security.oauth2.jwt.JwtValidators;
import org.springframework.security.oauth2.jwt.NimbusJwtDecoder;
@Configuration
@ConditionalOnProperty(prefix = "dds.mcp.oidc", name = "enabled", havingValue = "true")
public class DdsMcpOidcConfiguration {
@Bean
JwtDecoder ddsMcpJwtDecoder(DdsMcpOidcProperties properties) {
NimbusJwtDecoder decoder = NimbusJwtDecoder.withIssuerLocation(properties.issuerUri()).build();
OAuth2TokenValidator<Jwt> audienceValidator = jwt -> jwt.getAudience().contains(properties.audience())
? OAuth2TokenValidatorResult.success()
: OAuth2TokenValidatorResult.failure(new OAuth2Error("invalid_token", "Invalid audience", null));
decoder.setJwtValidator(new DelegatingOAuth2TokenValidator<>(
JwtValidators.createDefaultWithIssuer(properties.issuerUri()), audienceValidator));
return decoder;
}
}

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@@ -0,0 +1,22 @@
package com.cloudhandson.ddsbackoffice.config;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.bind.ConstructorBinding;
/** OIDC resource-server settings for externally authenticated MCP callers. */
@ConfigurationProperties(prefix = "dds.mcp.oidc")
public record DdsMcpOidcProperties(boolean enabled, String issuerUri, String audience) {
@ConstructorBinding
public DdsMcpOidcProperties {
issuerUri = trim(issuerUri);
audience = trim(audience);
if (enabled && (issuerUri.isBlank() || audience.isBlank())) {
throw new IllegalArgumentException("DDS MCP OIDC issuer-uri와 audience를 설정해야 합니다.");
}
}
private static String trim(String value) {
return value == null ? "" : value.trim();
}
}

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@@ -1,6 +1,6 @@
package com.cloudhandson.ddsbackoffice.service;
import com.cloudhandson.vpdbackoffice.service.DdsAuthorizationSynchronizer;
import com.cloudhandson.vpdbackoffice.service.ExternalAuthorizationSynchronizer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.dao.DataAccessResourceFailureException;
@@ -8,7 +8,7 @@ import org.springframework.stereotype.Component;
/** Republishes all local DDS MCP identities in the same request as an authorization change. */
@Component
public class DdsMcpAuthorizationChangeListener implements DdsAuthorizationSynchronizer {
public class DdsMcpAuthorizationChangeListener implements ExternalAuthorizationSynchronizer {
private static final Logger log = LoggerFactory.getLogger(DdsMcpAuthorizationChangeListener.class);
private final DdsMcpEndUserPublisher publisher;

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@@ -9,6 +9,7 @@ import com.cloudhandson.vpdbackoffice.service.BearerTokenService;
import java.time.Clock;
import java.time.LocalDateTime;
import java.time.ZoneId;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.stereotype.Service;
/** Revalidates the MCP request bearer before every tool invocation. */
@@ -20,22 +21,32 @@ public class DdsMcpBearerAuthenticator {
private final BearerTokenService bearerTokenService;
private final UserMapper userMapper;
private final DdsMcpEndUserResolver endUserResolver;
private final ObjectProvider<DdsMcpOidcAuthenticator> oidcAuthenticator;
private final Clock clock;
public DdsMcpBearerAuthenticator(
BearerTokenService bearerTokenService,
UserMapper userMapper,
DdsMcpEndUserResolver endUserResolver,
ObjectProvider<DdsMcpOidcAuthenticator> oidcAuthenticator,
Clock clock
) {
this.bearerTokenService = bearerTokenService;
this.userMapper = userMapper;
this.endUserResolver = endUserResolver;
this.oidcAuthenticator = oidcAuthenticator;
this.clock = clock;
}
public DdsMcpAuthenticatedUser authenticate(String authorization) {
String plainToken = bearerValue(authorization);
if (plainToken.chars().filter(character -> character == '.').count() == 2) {
DdsMcpOidcAuthenticator oidc = oidcAuthenticator.getIfAvailable();
if (oidc == null) {
throw denied();
}
return oidc.authenticate(plainToken);
}
BearerTokenRecord token = bearerTokenService.findByPlainToken(plainToken);
LocalDateTime now = LocalDateTime.now(clock.withZone(ZoneId.systemDefault()));
if (token == null || !token.active(now) || !bearerTokenService.matches(token, plainToken)) {

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@@ -0,0 +1,51 @@
package com.cloudhandson.ddsbackoffice.service;
import com.cloudhandson.vpdbackoffice.service.AppException;
import java.util.List;
import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Service;
/** Maps a verified OIDC issuer and subject to one active HMM application user. */
@Service
public class DdsMcpExternalIdentityResolver {
private final JdbcTemplate jdbcTemplate;
public DdsMcpExternalIdentityResolver(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
public long resolveApplicationUserId(String issuer, String subject) {
if (!safe(issuer) || !safe(subject)) {
throw denied();
}
try {
List<Long> userIds = jdbcTemplate.query("""
SELECT b.application_user_id
FROM cb_external_identity_binding b
JOIN cb_app_user u ON u.user_id = b.application_user_id
WHERE b.issuer = ?
AND b.subject = ?
AND b.active = 'Y'
AND u.active = 'Y'
""", (row, ignored) -> row.getLong("application_user_id"), issuer, subject);
if (userIds.size() != 1) {
throw denied();
}
return userIds.getFirst();
} catch (AppException exception) {
throw exception;
} catch (DataAccessException exception) {
throw new AppException("DDS_CONTEXT_UNAVAILABLE: 외부 ID 매핑을 확인할 수 없습니다.");
}
}
private boolean safe(String value) {
return value != null && !value.isBlank() && value.length() <= 512;
}
private AppException denied() {
return new AppException("AUTHORIZATION_DENIED: 외부 OIDC 사용자를 DDS에 매핑할 수 없습니다.");
}
}

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@@ -0,0 +1,55 @@
package com.cloudhandson.ddsbackoffice.service;
import com.cloudhandson.ddsbackoffice.domain.DdsMcpAuthenticatedUser;
import com.cloudhandson.vpdbackoffice.domain.user.AppUser;
import com.cloudhandson.vpdbackoffice.mapper.UserMapper;
import com.cloudhandson.vpdbackoffice.service.AppException;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.security.oauth2.jwt.Jwt;
import org.springframework.security.oauth2.jwt.JwtDecoder;
import org.springframework.security.oauth2.jwt.JwtException;
import org.springframework.stereotype.Service;
/** Validates a signed OIDC JWT before looking up the DDS identity bridge. */
@Service
@ConditionalOnProperty(prefix = "dds.mcp.oidc", name = "enabled", havingValue = "true")
public class DdsMcpOidcAuthenticator {
private final JwtDecoder jwtDecoder;
private final DdsMcpExternalIdentityResolver externalIdentityResolver;
private final UserMapper userMapper;
private final DdsMcpEndUserResolver endUserResolver;
public DdsMcpOidcAuthenticator(
JwtDecoder jwtDecoder,
DdsMcpExternalIdentityResolver externalIdentityResolver,
UserMapper userMapper,
DdsMcpEndUserResolver endUserResolver
) {
this.jwtDecoder = jwtDecoder;
this.externalIdentityResolver = externalIdentityResolver;
this.userMapper = userMapper;
this.endUserResolver = endUserResolver;
}
public DdsMcpAuthenticatedUser authenticate(String token) {
try {
Jwt jwt = jwtDecoder.decode(token);
long userId = externalIdentityResolver.resolveApplicationUserId(
jwt.getIssuer() == null ? null : jwt.getIssuer().toString(), jwt.getSubject());
AppUser user = userMapper.findById(userId);
if (user == null || !user.active()) {
throw denied();
}
return new DdsMcpAuthenticatedUser(user.userId(), user.username(), endUserResolver.resolve(user.userId()));
} catch (AppException exception) {
throw exception;
} catch (JwtException | IllegalArgumentException exception) {
throw denied();
}
}
private AppException denied() {
return new AppException("AUTHORIZATION_DENIED: MCP OIDC 토큰을 확인할 수 없습니다.");
}
}

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@@ -58,6 +58,12 @@ backoffice:
dds:
mcp:
permission-sync-enabled: true
oidc:
# Disabled unless an external OIDC issuer is explicitly configured.
# The production issuer must use HTTPS; the isolated AD VM uses a temporary HTTP value only for PoC.
enabled: ${DDS_MCP_OIDC_ENABLED:false}
issuer-uri: ${DDS_MCP_OIDC_ISSUER_URI:}
audience: ${DDS_MCP_OIDC_AUDIENCE:dds-mcp}
iam:
domain-url: ${DDS_OCI_IAM_DOMAIN_URL:}
token-uri: ${DDS_OCI_IAM_TOKEN_URI:}

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@@ -3,8 +3,8 @@ package com.cloudhandson.ddsbackoffice.service;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import com.cloudhandson.vpdbackoffice.service.DdsAuthorizationChangeNotifier;
import com.cloudhandson.vpdbackoffice.service.DdsAuthorizationSynchronizer;
import com.cloudhandson.vpdbackoffice.service.ExternalAuthorizationChangeNotifier;
import com.cloudhandson.vpdbackoffice.service.ExternalAuthorizationSynchronizer;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
@@ -16,9 +16,9 @@ class DdsMcpAuthorizationChangeListenerTest {
when(publisher.publish()).thenReturn(new com.cloudhandson.ddsbackoffice.domain.DdsMcpEndUserPublishResult(3, 0, 0));
DdsMcpAuthorizationChangeListener listener = new DdsMcpAuthorizationChangeListener(publisher);
DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
factory.registerSingleton("ddsSynchronizer", (DdsAuthorizationSynchronizer) listener);
factory.registerSingleton("ddsSynchronizer", (ExternalAuthorizationSynchronizer) listener);
new DdsAuthorizationChangeNotifier(factory.getBeanProvider(DdsAuthorizationSynchronizer.class))
new ExternalAuthorizationChangeNotifier(factory.getBeanProvider(ExternalAuthorizationSynchronizer.class))
.changed("PERMISSION_SAVED");
verify(publisher).publish();

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@@ -0,0 +1,81 @@
# 설계서: Windows AD 기반 DDS END USER 매핑 테스트 (#744)
> **상태**: OIDC JWT → MCP 매핑 검증 완료 · DDS data grant 검증 대기
> **최종수정**: 2026-08-04
> **추적성**: Redmine #744 · 선행 설계: [DDS MCP END USER Context](../617-dds-mcp-end-user-context/README.md)
## 1. 목적과 범위
Microsoft Entra ID 테넌트가 아직 준비되지 않은 상황에서, OCI 격리 네트워크의 Windows Server AD DS를 이용해 업무 사용자 디렉터리와 DDS END USER 매핑을 먼저 검증한다.
이 환경은 **Microsoft Entra access token을 Oracle DB가 직접 검증하는 환경이 아니다.** AD DS는 사용자·그룹·UPN을 제공하고, 이후 Keycloak 또는 별도 검증 서비스가 AD LDAP을 기반으로 발급·검증한 토큰의 안정적인 subject를 MCP의 업무 사용자로 해석한다. Entra tenant와 app registration이 준비되면 OIDC issuer/audience/JWKS 검증 경로로 교체 또는 병행한다.
## 2. 격리 인프라
| 항목 | 구성 |
|---|---|
| 네트워크 | `handson-vcn`의 전용 `10.0.2.0/28` public subnet |
| Windows VM | `hmm-ad-dss-test-isolated`, Windows Server 2022, 2 OCPU / 16 GB |
| 관리 접근 | RDP TCP/3389은 작업자 공인 IP 한 곳에만 NSG로 허용 |
| OIDC HTTPS | `https://ad.cloud-handson.com` (Caddy TLS reverse proxy → Keycloak) |
| 서브넷 보안 목록 | 인바운드 전부 차단, Windows Update 및 테스트용 아웃바운드만 허용 |
| 도메인 | `dds.test` (AD DS forest/domain) |
이 VM은 테스트 전용이다. 기존 공유 public subnet의 NAT 경로를 변경하지 않으며, 비용 발생 리소스이므로 검증 종료 뒤 중지 또는 삭제를 결정한다.
## 3. 식별자와 권한 흐름
```text
AD 사용자 (UPN: alice@dds.test, objectGUID)
│ LDAP / OIDC bridge
검증된 Bearer claims
iss, aud, exp, sub = 불변 외부 subject
│ MCP bearer authenticator
CB_EXTERNAL_IDENTITY_BINDING
issuer + subject -> CB_APP_USER.user_id
CB_DDS_END_USER_MAP
user_id -> DDS_U_<user_id> local END USER
ORA_END_USER_CONTEXT + DDS DATA GRANT / 권한 함수
```
`sub`는 Keycloak이 발급하는 안정적인 federated-user 식별자다. AD objectGUID는 원천 디렉터리의 감사 식별자로 유지하되, 실제 권한 키는 **검증된 JWT의 `iss + sub`**로 고정한다. UPN은 로그인 화면·감사 표시용으로 보관할 수 있지만 권한 키로 신뢰하지 않는다. `iss + sub` 조합이 유일하지 않거나, 매핑이 없거나, 사용자가 비활성이면 요청은 fail-closed로 거부한다.
## 4. 구현 단계
1. Windows Server에 AD DS를 설치하고 `dds.test` forest를 생성한다.
2. 테스트 사용자 `dds-alice`, `dds-bob`와 권한 그룹을 만들고, LDAP 조회와 인증을 확인한다.
3. AD LDAP과 연동한 OIDC bridge(예: Keycloak)를 별도 서비스로 구성한다. bridge가 내는 JWT의 `iss`, `aud`, `exp`, JWKS 서명을 MCP가 검증한다.
4. `issuer + sub`에서 `CB_APP_USER``CB_DDS_END_USER_MAP`을 해석하도록 백오피스/DB 매핑을 추가한다.
5. alice/bob의 서로 다른 `DDS_U_*` context에서 동일 MCP tool 호출 결과가 권한에 따라 달라지는지 검증한다.
6. 매핑 누락, 만료 토큰, 다른 issuer/audience, 비활성 계정은 모두 거부되는 regression을 추가한다.
## 4.1 현재 테스트 bridge
`database/adb/47_dds_ad_identity_test_setup.sql`은 HMM DB의 기존 업무 사용자 원천을 변경하지 않는다. 스크립트가 만든 `CB_EXTERNAL_IDENTITY_BINDING`에는 최종 OIDC issuer와 Keycloak이 실제로 발급한 subject만 보관한다.
| AD 사용자 | OIDC issuer | JWT `sub` | HMM application user | DDS END USER |
|---|---|---|---:|---|
| `dds-alice` | `https://ad.cloud-handson.com/realms/dds-test` | `11cf09c9-4713-4145-85cd-e3397d4a2405` | 1 | `DDS_U_1` |
| `dds-bob` | `https://ad.cloud-handson.com/realms/dds-test` | `d9610e18-a327-4dda-9496-69e5a2067460` | 2 | `DDS_U_2` |
`dds-mcp` client는 access token audience에 `dds-mcp`를 포함한다. MCP는 Keycloak JWKS에서 JWT 서명과 `iss`, `aud`, 만료 시간을 검증한 뒤에만 위 매핑을 조회한다. 실제 `/dds/mcp/messages` 초기화 요청에 Alice JWT를 넣어 성공 응답을 확인했다.
이 단계는 END USER와 DATA ROLE만 게시한다. 각 DATA ROLE에는 data grant를 만들지 않았으므로 데이터 도구 호출은 여전히 **default deny**다.
## 5. Entra ID로 전환할 때
Entra tenant가 확보되면 AD DS/bridge 테스트에서 확인한 `issuer + immutable subject -> CB_APP_USER -> DDS END USER` 계약은 유지한다. 바뀌는 부분은 token issuer와 JWKS 검증 설정뿐이다. Entra의 claim 이름(`oid`, `sub`, `preferred_username` 등)은 실제 발급 토큰을 확인한 뒤 결정하며, `sub` 단독이 아니라 tenant/issuer 경계를 반드시 포함한다.
## 6. 완료 기준
- [x] `dds.test` AD forest와 두 테스트 사용자가 생성되었다.
- [x] Keycloak LDAP bridge가 HTTPS OIDC JWT를 발급하고 각 사용자가 서로 다른 안정 subject를 가진다.
- [x] MCP가 JWT signature/issuer/audience를 검증하고 `issuer + sub` 매핑을 해석한다.
- [ ] subject 매핑을 통해 각 요청에 대응하는 DDS END USER context만 attach된다.
- [ ] 서로 다른 권한의 동일 MCP 호출에서 데이터 행/열 결과가 달라진다.
- [ ] 미매핑·만료·issuer/audience 불일치 요청은 데이터 접근 전에 거부된다.
- [ ] 종료 시 테스트 VM과 전용 네트워크 리소스의 정리 여부 및 비용 상태를 Redmine에 기록한다.