feat: extract elements from MVP sample

Refs: #4, #5

examples/relying-party-spring-boot/src/main/java/it/spid/cie/oidc/spring/boot/relying/party/RelyingPartyWrapper.java

@@ -8,6 +8,7 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
+import it.spid.cie.oidc.callback.RelyingPartyLogoutCallback;
 import it.spid.cie.oidc.config.RelyingPartyOptions;
 import it.spid.cie.oidc.exception.OIDCException;
 import it.spid.cie.oidc.handler.RelyingPartyHandler;
@@ -39,6 +40,12 @@ public WellKnownData getWellKnownData(String requestURL, boolean jsonMode)
 		return relyingPartyHandler.getWellKnownData(requestURL, jsonMode);
 	}
 
+	public String performLogout(String userKey, RelyingPartyLogoutCallback callback)
+		throws OIDCException {
+
+		return relyingPartyHandler.performLogout(userKey, callback);
+	}
+
 	@PostConstruct
 	private void postConstruct() throws OIDCException {
 		RelyingPartyOptions options = new RelyingPartyOptions()

examples/relying-party-spring-boot/src/main/java/it/spid/cie/oidc/spring/boot/relying/party/controller/SpidController.java

@@ -18,7 +18,12 @@
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.view.RedirectView;
 
+import it.spid.cie.oidc.callback.RelyingPartyLogoutCallback;
+import it.spid.cie.oidc.model.AuthnRequest;
+import it.spid.cie.oidc.model.AuthnToken;
 import it.spid.cie.oidc.spring.boot.relying.party.RelyingPartyWrapper;
+import it.spid.cie.oidc.util.GetterUtil;
+import it.spid.cie.oidc.util.Validator;
 
 @RestController
 @RequestMapping("/oidc/rp")
@@ -69,6 +74,34 @@ public RedirectView callback(
 		return new RedirectView("echo_attributes");
 	}
 
+	@GetMapping("/logout")
+	public RedirectView logout(
+			@RequestParam Map<String,String> params,
+			final HttpServletRequest request, HttpServletResponse response)
+		throws Exception {
+
+		String userKey = GetterUtil.getString(request.getSession().getAttribute("USER"));
+
+		String redirectURL = relyingPartyWrapper.performLogout(
+			userKey, new RelyingPartyLogoutCallback() {
+
+				@Override
+				public void logout(
+					String userKey, AuthnRequest authnRequest, AuthnToken authnToken) {
+
+					request.getSession().removeAttribute("USER");
+					request.getSession().removeAttribute("USER_INFO");
+				}
+
+			});
+
+		if (!Validator.isNullOrEmpty(redirectURL)) {
+			return new RedirectView(redirectURL);
+		}
+
+		return new RedirectView("landing");
+	}
+
 	private static Logger logger = LoggerFactory.getLogger(SpidController.class);
 
 	@Autowired

examples/relying-party-spring-boot/src/main/java/it/spid/cie/oidc/spring/boot/relying/party/persistence/H2PersistenceImpl.java

@@ -3,6 +3,7 @@
 import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Optional;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -26,10 +27,29 @@
 import it.spid.cie.oidc.spring.boot.relying.party.persistence.model.FederationEntityRepository;
 import it.spid.cie.oidc.spring.boot.relying.party.persistence.model.TrustChainModel;
 import it.spid.cie.oidc.spring.boot.relying.party.persistence.model.TrustChainRepository;
+import it.spid.cie.oidc.util.GetterUtil;
 
 @Component
 public class H2PersistenceImpl implements PersistenceAdapter {
 
+	@Override
+	public AuthnRequest fetchAuthnRequest(String storageId) throws PersistenceException {
+		try {
+			long id = GetterUtil.getLong(storageId);
+
+			Optional<AuthnRequestModel> model = authnRequestRepository.findById(id);
+
+			if (model.isPresent()) {
+				return model.get().toAuthnRequest();
+			}
+		}
+		catch (Exception e) {
+			throw new PersistenceException(e);
+		}
+
+		return null;
+	}
+
 	@Override
 	public CachedEntityInfo fetchEntityInfo(String subject, String issuer)
 		throws PersistenceException {
@@ -162,6 +182,24 @@ public List<AuthnRequest> findAuthnRequests(String state)
 		}
 	}
 
+	@Override
+	public List<AuthnToken> findAuthnTokens(String userKey) throws PersistenceException {
+		List<AuthnToken> result = new ArrayList<>();
+
+		try {
+			List<AuthnTokenModel> models = authnTokenRepository.findUserTokens(userKey);
+
+			for (AuthnTokenModel model : models) {
+				result.add(model.toAuthnToken());
+			}
+
+			return result;
+		}
+		catch (Exception e) {
+			throw new PersistenceException(e);
+		}
+	}
+
 	@Override
 	public CachedEntityInfo storeEntityInfo(CachedEntityInfo entityInfo)
 		throws PersistenceException {

starter-kit/src/main/java/it/spid/cie/oidc/callback/RelyingPartyLogoutCallback.java

@@ -0,0 +1,10 @@
+package it.spid.cie.oidc.callback;
+
+import it.spid.cie.oidc.model.AuthnRequest;
+import it.spid.cie.oidc.model.AuthnToken;
+
+public interface RelyingPartyLogoutCallback {
+
+	public void logout(String userKey, AuthnRequest authnRequest, AuthnToken authnToken);
+
+}

starter-kit/src/main/java/it/spid/cie/oidc/config/RelyingPartyOptions.java

@@ -78,6 +78,14 @@ public String getTrustMarks() {
 		return trustMarks;
 	}
 
+	public String getLoginURL() {
+		return loginRedirectURL;
+	}
+
+	public String getLogoutRedirectURL() {
+		return logoutRedirectURL;
+	}
+
 	public RelyingPartyOptions setProfileAcr(OIDCProfile profile, String acr) {
 		if (acr != null) {
 			if (OIDCProfile.SPID.equals(profile)) {