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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.restapi.application;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.Environment;
import com.yahoo.vespa.hosted.controller.api.Tenant;
import com.yahoo.vespa.hosted.controller.api.identifiers.AthenzDomain;
import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneRegistry;
import com.yahoo.vespa.hosted.controller.application.ApplicationPackage;
import com.yahoo.vespa.hosted.controller.athenz.ApplicationAction;
import com.yahoo.vespa.hosted.controller.athenz.AthenzClientFactory;
import com.yahoo.vespa.hosted.controller.athenz.AthenzPrincipal;
import com.yahoo.vespa.hosted.controller.athenz.AthenzUtils;
import com.yahoo.vespa.hosted.controller.athenz.ZmsException;
import javax.ws.rs.ForbiddenException;
import javax.ws.rs.NotAuthorizedException;
import java.security.Principal;
import java.util.Objects;
import java.util.logging.Logger;
import static com.yahoo.vespa.hosted.controller.restapi.application.Authorizer.environmentRequiresAuthorization;
/**
* @author bjorncs
* @author gjoranv
*/
public class DeployAuthorizer {
private static final Logger log = Logger.getLogger(DeployAuthorizer.class.getName());
private final ZoneRegistry zoneRegistry;
private final AthenzClientFactory athenzClientFactory;
public DeployAuthorizer(ZoneRegistry zoneRegistry, AthenzClientFactory athenzClientFactory) {
this.zoneRegistry = zoneRegistry;
this.athenzClientFactory = athenzClientFactory;
}
public void throwIfUnauthorizedForDeploy(Principal principal,
Environment environment,
Tenant tenant,
ApplicationId applicationId,
ApplicationPackage applicationPackage) {
// Validate that domain in identity configuration (deployment.xml) is same as tenant domain
applicationPackage.deploymentSpec().athenzDomain().ifPresent(identityDomain -> {
AthenzDomain tenantDomain = tenant.getAthensDomain().orElseThrow(() -> new IllegalArgumentException("Identity provider only available to Athenz onboarded tenants"));
if (! Objects.equals(tenantDomain.id(), identityDomain.value())) {
throw new ForbiddenException(
String.format(
"Athenz domain in deployment.xml: [%s] must match tenant domain: [%s]",
identityDomain.value(),
tenantDomain.id()
));
}
});
if (!environmentRequiresAuthorization(environment)) {
return;
}
if (principal == null) {
throw loggedUnauthorizedException("Principal not authenticated!");
}
if (!(principal instanceof AthenzPrincipal)) {
throw loggedUnauthorizedException(
"Principal '%s' of type '%s' is not an Athenz principal, which is required for production deployments.",
principal.getName(), principal.getClass().getSimpleName());
}
AthenzPrincipal athenzPrincipal = (AthenzPrincipal) principal;
AthenzDomain principalDomain = athenzPrincipal.getDomain();
if (!principalDomain.equals(AthenzUtils.SCREWDRIVER_DOMAIN)) {
throw loggedForbiddenException(
"Principal '%s' is not a Screwdriver principal. Excepted principal with Athenz domain '%s', got '%s'.",
principal.getName(), AthenzUtils.SCREWDRIVER_DOMAIN.id(), principalDomain.id());
}
// NOTE: no fine-grained deploy authorization for non-Athenz tenants
if (tenant.isAthensTenant()) {
AthenzDomain tenantDomain = tenant.getAthensDomain().get();
if (!hasDeployAccessToAthenzApplication(athenzPrincipal, tenantDomain, applicationId)) {
throw loggedForbiddenException(
"Screwdriver principal '%1$s' does not have deploy access to '%2$s'. " +
"Either the application has not been created at " + zoneRegistry.getDashboardUri() + " or " +
"'%1$s' is not added to the application's deployer role in Athenz domain '%3$s'.",
athenzPrincipal.toYRN(), applicationId, tenantDomain.id());
}
}
}
private static ForbiddenException loggedForbiddenException(String message, Object... args) {
String formattedMessage = String.format(message, args);
log.info(formattedMessage);
return new ForbiddenException(formattedMessage);
}
private static NotAuthorizedException loggedUnauthorizedException(String message, Object... args) {
String formattedMessage = String.format(message, args);
log.info(formattedMessage);
return new NotAuthorizedException(formattedMessage);
}
private boolean hasDeployAccessToAthenzApplication(AthenzPrincipal principal, AthenzDomain domain, ApplicationId applicationId) {
try {
return athenzClientFactory.createZmsClientWithServicePrincipal()
.hasApplicationAccess(
principal,
ApplicationAction.deploy,
domain,
new com.yahoo.vespa.hosted.controller.api.identifiers.ApplicationId(applicationId.application().value()));
} catch (ZmsException e) {
throw loggedForbiddenException(
"Failed to authorize deployment through Athenz. If this problem persists, " +
"please create ticket at yo/vespa-support. (" + e.getMessage() + ")");
}
}
}
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