242 lines
10 KiB
Java
242 lines
10 KiB
Java
package eu.eudat.interceptors.tenant;
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import eu.eudat.authorization.Permission;
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import eu.eudat.commons.enums.IsActive;
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import eu.eudat.commons.lock.LockByKeyManager;
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import eu.eudat.commons.scope.tenant.TenantScope;
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import eu.eudat.commons.scope.user.UserScope;
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import eu.eudat.data.TenantUserEntity;
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import eu.eudat.data.UserEntity;
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import eu.eudat.data.tenant.TenantScopedBaseEntity;
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import eu.eudat.errorcode.ErrorThesaurusProperties;
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import eu.eudat.query.utils.BuildSubQueryInput;
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import eu.eudat.query.utils.QueryUtilsService;
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import gr.cite.commons.web.authz.service.AuthorizationService;
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import gr.cite.commons.web.oidc.principal.CurrentPrincipalResolver;
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import gr.cite.commons.web.oidc.principal.extractor.ClaimExtractor;
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import gr.cite.tools.exception.MyForbiddenException;
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import gr.cite.tools.logging.LoggerService;
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import jakarta.persistence.EntityManager;
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import jakarta.persistence.PersistenceContext;
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import jakarta.persistence.Tuple;
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import jakarta.persistence.criteria.CriteriaBuilder;
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import jakarta.persistence.criteria.CriteriaQuery;
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import jakarta.persistence.criteria.Root;
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import org.hibernate.Session;
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import org.jetbrains.annotations.NotNull;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.ApplicationContext;
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import org.springframework.lang.NonNull;
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import org.springframework.stereotype.Component;
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import org.springframework.transaction.PlatformTransactionManager;
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import org.springframework.transaction.TransactionDefinition;
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import org.springframework.transaction.TransactionStatus;
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import org.springframework.transaction.support.DefaultTransactionDefinition;
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import org.springframework.ui.ModelMap;
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import org.springframework.web.context.request.ServletWebRequest;
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import org.springframework.web.context.request.WebRequest;
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import org.springframework.web.context.request.WebRequestInterceptor;
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import javax.management.InvalidApplicationException;
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import java.time.Instant;
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import java.util.List;
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import java.util.Locale;
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import java.util.UUID;
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import java.util.concurrent.TimeUnit;
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@Component
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public class TenantInterceptor implements WebRequestInterceptor {
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private static final LoggerService logger = new LoggerService(LoggerFactory.getLogger(TenantInterceptor.class));
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private final TenantScope tenantScope;
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private final UserScope userScope;
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private final CurrentPrincipalResolver currentPrincipalResolver;
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private final ClaimExtractor claimExtractor;
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private final ApplicationContext applicationContext;
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private final TenantScopeProperties tenantScopeProperties;
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private final UserAllowedTenantCacheService userAllowedTenantCacheService;
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private final PlatformTransactionManager transactionManager;
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private final ErrorThesaurusProperties errors;
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private final QueryUtilsService queryUtilsService;
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private final LockByKeyManager lockByKeyManager;
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@PersistenceContext
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public EntityManager entityManager;
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@Autowired
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public TenantInterceptor(
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TenantScope tenantScope,
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UserScope userScope,
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CurrentPrincipalResolver currentPrincipalResolver,
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ClaimExtractor claimExtractor,
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ApplicationContext applicationContext,
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TenantScopeProperties tenantScopeProperties,
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UserAllowedTenantCacheService userAllowedTenantCacheService,
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PlatformTransactionManager transactionManager,
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ErrorThesaurusProperties errors, QueryUtilsService queryUtilsService, LockByKeyManager lockByKeyManager) {
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this.tenantScope = tenantScope;
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this.userScope = userScope;
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this.currentPrincipalResolver = currentPrincipalResolver;
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this.claimExtractor = claimExtractor;
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this.applicationContext = applicationContext;
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this.tenantScopeProperties = tenantScopeProperties;
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this.userAllowedTenantCacheService = userAllowedTenantCacheService;
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this.transactionManager = transactionManager;
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this.errors = errors;
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this.queryUtilsService = queryUtilsService;
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this.lockByKeyManager = lockByKeyManager;
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}
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@Override
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public void preHandle(@NotNull WebRequest request) throws InvalidApplicationException, InterruptedException {
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if (!this.currentPrincipalResolver.currentPrincipal().isAuthenticated()) return;
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if (!this.tenantScope.isMultitenant()) return;
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boolean isAllowedNoTenant = this.applicationContext.getBean(AuthorizationService.class).authorize(Permission.AllowNoTenant);
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if (tenantScope.isSet() && this.entityManager != null) {
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List<String> currentPrincipalTenantCodes = this.claimExtractor.asStrings(this.currentPrincipalResolver.currentPrincipal(), TenantScope.TenantCodesClaimName);
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if ((currentPrincipalTenantCodes == null || !currentPrincipalTenantCodes.contains(tenantScope.getTenantCode())) && !isAllowedNoTenant) {
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logger.warn("tenant not allowed {}", this.tenantScope.getTenant());
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throw new MyForbiddenException(this.errors.getTenantNotAllowed().getCode(), this.errors.getTenantNotAllowed().getMessage());
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}
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boolean isUserAllowedTenant = false;
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if (this.tenantScope.isDefaultTenant()){
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isUserAllowedTenant = true;
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} else {
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UserAllowedTenantCacheService.UserAllowedTenantCacheValue cacheValue = this.userAllowedTenantCacheService.lookup(this.userAllowedTenantCacheService.buildKey(this.userScope.getUserId(), this.tenantScope.getTenant()));
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if (cacheValue != null) {
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isUserAllowedTenant = cacheValue.isAllowed();
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} else {
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isUserAllowedTenant = this.isUserAllowedTenant();
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this.userAllowedTenantCacheService.put(new UserAllowedTenantCacheService.UserAllowedTenantCacheValue(this.userScope.getUserId(), this.tenantScope.getTenant(), isUserAllowedTenant));
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}
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}
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if (isUserAllowedTenant) {
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if(!tenantScope.isDefaultTenant()) {
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this.entityManager
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.unwrap(Session.class)
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.enableFilter(TenantScopedBaseEntity.TENANT_FILTER)
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.setParameter(TenantScopedBaseEntity.TENANT_FILTER_TENANT_PARAM, tenantScope.getTenant().toString());
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} else {
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this.entityManager
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.unwrap(Session.class)
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.enableFilter(TenantScopedBaseEntity.DEFAULT_TENANT_FILTER);
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}
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} else {
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if (isAllowedNoTenant || this.isWhiteListedEndpoint(request)) {
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tenantScope.setTenant(null, null);
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} else {
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logger.warn("tenant not allowed {}", this.tenantScope.getTenant());
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throw new MyForbiddenException(this.errors.getTenantNotAllowed().getCode(), this.errors.getTenantNotAllowed().getMessage());
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}
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}
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} else {
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if (!isAllowedNoTenant) {
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if (!this.isWhiteListedEndpoint(request)) {
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logger.warn("tenant scope not provided");
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throw new MyForbiddenException(this.errors.getMissingTenant().getCode(), this.errors.getMissingTenant().getMessage());
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}
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}
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}
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}
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private boolean isWhiteListedEndpoint(WebRequest request) {
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String servletPath = ((ServletWebRequest) request).getRequest().getServletPath();
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if (this.tenantScopeProperties.getWhiteListedEndpoints() != null) {
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for (String whiteListedEndpoint : this.tenantScopeProperties.getWhiteListedEndpoints()) {
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if (servletPath.toLowerCase(Locale.ROOT).startsWith(whiteListedEndpoint.toLowerCase(Locale.ROOT))) {
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return true;
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}
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}
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}
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return false;
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}
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private boolean isUserAllowedTenant() throws InvalidApplicationException, InterruptedException {
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if (userScope.isSet()) {
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boolean usedResource = false;
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String lockId = userScope.getUserId().toString().toLowerCase(Locale.ROOT);
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try {
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if (this.tenantScopeProperties.getAutoCreateTenantUser()) usedResource = this.lockByKeyManager.tryLock(lockId, 5000, TimeUnit.MILLISECONDS);
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CriteriaBuilder criteriaBuilder = this.entityManager.getCriteriaBuilder();
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CriteriaQuery<Tuple> query = criteriaBuilder.createQuery(Tuple.class);
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Root<UserEntity> root = query.from(UserEntity.class);
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query.where(criteriaBuilder.and(
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criteriaBuilder.equal(root.get(UserEntity._isActive), IsActive.Active),
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criteriaBuilder.in(root.get(UserEntity._id)).value(queryUtilsService.buildSubQuery(new BuildSubQueryInput<>(new BuildSubQueryInput.Builder<>(TenantUserEntity.class, UUID.class)
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.query(query)
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.criteriaBuilder(criteriaBuilder)
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.keyPathFunc((subQueryRoot) -> subQueryRoot.get(TenantUserEntity._userId))
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.filterFunc((subQueryRoot, cb) ->
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{
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try {
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return cb.and(
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criteriaBuilder.equal(subQueryRoot.get(TenantUserEntity._tenantId), this.tenantScope.getTenant()),
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criteriaBuilder.equal(subQueryRoot.get(TenantUserEntity._userId), this.userScope.getUserId()),
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criteriaBuilder.equal(subQueryRoot.get(TenantUserEntity._isActive), IsActive.Active)
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);
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} catch (InvalidApplicationException e) {
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throw new RuntimeException(e);
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}
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}
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)
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))
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)
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));
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query.multiselect(root.get(UserEntity._id).alias(UserEntity._id));
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List<Tuple> results = this.entityManager.createQuery(query).getResultList();
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if (results.isEmpty() && this.tenantScopeProperties.getAutoCreateTenantUser()) {
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return this.createTenantUser();
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} else {
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return !results.isEmpty();
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}
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} finally {
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if (usedResource) this.lockByKeyManager.unlock(lockId);
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}
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}
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return false;
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}
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private boolean createTenantUser() throws InvalidApplicationException {
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TenantUserEntity user = new TenantUserEntity();
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user.setId(UUID.randomUUID());
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user.setCreatedAt(Instant.now());
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user.setUpdatedAt(Instant.now());
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user.setIsActive(IsActive.Active);
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user.setTenantId(this.tenantScope.getTenant());
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user.setUserId(userScope.getUserId());
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DefaultTransactionDefinition definition = new DefaultTransactionDefinition();
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definition.setName(UUID.randomUUID().toString());
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definition.setIsolationLevel(TransactionDefinition.ISOLATION_READ_COMMITTED);
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definition.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
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TransactionStatus status = null;
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try {
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status = transactionManager.getTransaction(definition);
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this.entityManager.persist(user);
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this.entityManager.flush();
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transactionManager.commit(status);
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} catch (Exception ex) {
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if (status != null) transactionManager.rollback(status);
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throw ex;
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}
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return true;
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}
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@Override
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public void postHandle(@NonNull WebRequest request, ModelMap model) {
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this.tenantScope.setTenant(null, null);
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}
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@Override
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public void afterCompletion(@NonNull WebRequest request, Exception ex) {
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}
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}
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