package org.apereo.cas.support.saml.services;
import org.apereo.cas.authentication.AuthenticationServiceSelectionStrategy;
import org.apereo.cas.authentication.principal.Service;
import org.apereo.cas.authentication.principal.ServiceFactory;
import org.apereo.cas.support.saml.SamlProtocolConstants;
import org.jasig.cas.client.util.URIBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.Ordered;
import java.util.Optional;
/**
* This is {@link SamlIdPEntityIdAuthenticationServiceSelectionStrategy}.
*
* @author Misagh Moayyed
* @since 5.0.0
*/
public class SamlIdPEntityIdAuthenticationServiceSelectionStrategy implements AuthenticationServiceSelectionStrategy {
private static final long serialVersionUID = -2059445756475980894L;
private static final Logger LOGGER = LoggerFactory.getLogger(SamlIdPEntityIdAuthenticationServiceSelectionStrategy.class);
private int order = Ordered.HIGHEST_PRECEDENCE;
private final ServiceFactory webApplicationServiceFactory;
private final String casServerPrefix;
public SamlIdPEntityIdAuthenticationServiceSelectionStrategy(final ServiceFactory webApplicationServiceFactory,
final String casServerPrefix) {
this.webApplicationServiceFactory = webApplicationServiceFactory;
this.casServerPrefix = casServerPrefix;
}
@Override
public Service resolveServiceFrom(final Service service) {
final String entityId = getEntityIdAsParameter(service).get().getValue();
LOGGER.debug("Located entity id [{}] from service authentication request at [{}]", entityId, service.getId());
return this.webApplicationServiceFactory.createService(entityId);
}
@Override
public boolean supports(final Service service) {
final String casPattern = "^".concat(casServerPrefix).concat(".*");
return service != null && service.getId().matches(casPattern)
&& getEntityIdAsParameter(service).isPresent();
}
/**
* Gets entity id as parameter.
*
* @param service the service
* @return the entity id as parameter
*/
protected static Optional<URIBuilder.BasicNameValuePair> getEntityIdAsParameter(final Service service) {
final URIBuilder builder = new URIBuilder(service.getId());
final Optional<URIBuilder.BasicNameValuePair> param = builder.getQueryParams().stream()
.filter(p -> p.getName().equals(SamlProtocolConstants.PARAMETER_ENTITY_ID)).findFirst();
return param;
}
@Override
public int getOrder() {
return this.order;
}
}