150 lines
5.2 KiB
Java
150 lines
5.2 KiB
Java
package org.gcube.smartgears.handlers.application.request;
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import static org.gcube.smartgears.handlers.application.request.RequestError.application_failed_error;
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import static org.gcube.smartgears.handlers.application.request.RequestError.application_unavailable_error;
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import static org.gcube.smartgears.handlers.application.request.RequestError.invalid_request_error;
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import java.io.IOException;
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import javax.xml.bind.annotation.XmlAttribute;
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import javax.xml.bind.annotation.XmlRootElement;
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import org.gcube.common.authorization.library.provider.SecurityTokenProvider;
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import org.gcube.common.scope.api.ScopeProvider;
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import org.gcube.common.scope.impl.ScopeBean;
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import org.gcube.common.scope.impl.ScopeBean.Type;
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import org.gcube.smartgears.Constants;
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import org.gcube.smartgears.configuration.container.ContainerConfiguration;
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import org.gcube.smartgears.context.application.ApplicationContext;
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import org.gcube.smartgears.handlers.application.RequestEvent;
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import org.gcube.smartgears.handlers.application.RequestHandler;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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@XmlRootElement(name = Constants.request_validation)
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public class RequestValidator extends RequestHandler {
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@XmlAttribute(required=false, name="oauth")
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@Deprecated
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boolean oauthCompatibility = false;
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private static Logger log = LoggerFactory.getLogger(RequestValidator.class);
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private ApplicationContext context;
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@Override
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public String getName() {
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return Constants.request_validation;
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}
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@Override
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public void handleRequest(RequestEvent call) {
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log.trace("executing request validator ON REQUEST");
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context = call.context();
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validateAgainstLifecycle(call);
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rejectUnauthorizedCalls(call);
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validateScopeCall();
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/*if (SecurityTokenProvider.instance.get()!=null)
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validatePolicy(SecurityTokenProvider.instance.get(), call);*/
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}
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private void validateAgainstLifecycle(RequestEvent call) {
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switch(context.lifecycle().state()) {
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case stopped :
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application_unavailable_error.fire(); break;
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case failed:
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application_failed_error.fire(); break;
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default:
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//nothing to do, but avoids warnings
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}
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}
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private void validateScopeCall() {
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String scope = ScopeProvider.instance.get();
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if (scope == null) {
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log.warn("rejecting unscoped call to {}",context.name());
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invalid_request_error.fire("call is unscoped");
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}
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ScopeBean bean = new ScopeBean(scope);
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ContainerConfiguration conf = context.container().configuration();
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if (!conf.allowedContexts().contains(scope) &&
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!(conf.authorizeChildrenContext() && bean.is(Type.VRE) && conf.allowedContexts().contains(bean.enclosingScope().toString()) ) ) {
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log.warn("rejecting call to {} in invalid context {}, allowed context are {}",context.name(),scope,context.container().configuration().allowedContexts());
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invalid_request_error.fire(context.name()+" cannot be called in scope "+scope);
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}
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}
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private void rejectUnauthorizedCalls(RequestEvent call){
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String token = SecurityTokenProvider.instance.get();
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String scope = ScopeProvider.instance.get();
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if (token == null && scope==null){
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log.warn("rejecting call to {}, authorization required",context.name(),token);
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if (call.context().container().configuration().authenticationEnpoint()==null){
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log.warn("rejecting call to {}, authorization required",context.name(),token);
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RequestError.request_not_authorized_error.fire(context.name()+": authorization required");
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}else {
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log.info("authorization enpoint found on configuration, redirecting the call");
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String recallLocation = String.format("http://%s:%d%s", call.context().container().configuration().hostname(), call.context().container().configuration().port(), call.uri());
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//call.response().setHeader("Allowed-Contexts", call.context().container().configuration().allowedContexts().toString());
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try {
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call.response().sendRedirect(context.container().configuration().authenticationEnpoint()+"?Recall-Location="+recallLocation);
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} catch (IOException e) {
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log.error("errror redirecting call",e );
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}
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}
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}
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}
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@Override
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public String toString() {
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return getName();
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}
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/*
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private void validatePolicy(String token, RequestEvent call){
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log.info("accessing policy validator with token {} ", token);
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AuthorizationEntry authEntry = null;
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try{
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authEntry = authorizationService().get(token);
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}catch(ObjectNotFound onf){
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log.warn("rejecting call to {}, invalid token {}",context.name(),token);
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invalid_request_error.fire(context.name()+" invalid token : "+token);
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}catch(Exception e){
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log.error("error contacting authorization service",e);
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internal_server_error.fire("error contacting authorization service");
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}
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ServiceIdentifier serviceIdentifier = Utils.getServiceInfo(call.context()).getServiceIdentifier();
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for (Policy policy: authEntry.getPolicies())
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if (PolicyUtils.isPolicyValidForClient(policy.getServiceAccess(), serviceIdentifier)){
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log.error("rejecting call to {} : {} is not allowed to contact the service ",context.name(),authEntry.getClientInfo().getId());
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invalid_request_error.fire("rejecting call to "+context.name()+": "+authEntry.getClientInfo().getId()+" is not allowed to contact the service");
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}
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}*/
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}
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