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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.athenz.impl;
import com.yahoo.athenz.auth.util.Crypto;
import com.yahoo.athenz.zms.DomainList;
import com.yahoo.athenz.zms.ProviderResourceGroupRoles;
import com.yahoo.athenz.zms.PublicKeyEntry;
import com.yahoo.athenz.zms.ServiceIdentity;
import com.yahoo.athenz.zms.Tenancy;
import com.yahoo.athenz.zms.TenantRoleAction;
import com.yahoo.athenz.zms.ZMSClient;
import com.yahoo.athenz.zms.ZMSClientException;
import com.yahoo.log.LogLevel;
import com.yahoo.vespa.hosted.controller.api.identifiers.ApplicationId;
import com.yahoo.vespa.hosted.controller.api.identifiers.AthensDomain;
import com.yahoo.vespa.hosted.controller.athenz.ApplicationAction;
import com.yahoo.vespa.hosted.controller.athenz.AthenzPrincipal;
import com.yahoo.vespa.hosted.controller.athenz.AthenzPublicKey;
import com.yahoo.vespa.hosted.controller.athenz.AthenzService;
import com.yahoo.vespa.hosted.controller.athenz.ZmsClient;
import com.yahoo.vespa.hosted.controller.athenz.ZmsException;
import com.yahoo.vespa.hosted.controller.athenz.config.AthenzConfig;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.function.Supplier;
import java.util.logging.Logger;
import static java.util.stream.Collectors.toList;
/**
* @author bjorncs
*/
public class ZmsClientImpl implements ZmsClient {
private static final Logger log = Logger.getLogger(ZmsClientImpl.class.getName());
private final ZMSClient zmsClient;
private final AthenzService service;
ZmsClientImpl(ZMSClient zmsClient, AthenzConfig config) {
this.zmsClient = zmsClient;
this.service = new AthenzService(config.domain(), config.service().name());
}
@Override
public void createTenant(AthensDomain tenantDomain) {
log("putTenancy(tenantDomain=%s, service=%s)", tenantDomain, service);
runOrThrow(() -> {
Tenancy tenancy = new Tenancy()
.setDomain(tenantDomain.id())
.setService(service.toFullServiceName())
.setResourceGroups(Collections.emptyList());
zmsClient.putTenancy(tenantDomain.id(), service.toFullServiceName(), /*auditref*/null, tenancy);
});
}
@Override
public void deleteTenant(AthensDomain tenantDomain) {
log("deleteTenancy(tenantDomain=%s, service=%s)", tenantDomain, service);
runOrThrow(() -> zmsClient.deleteTenancy(tenantDomain.id(), service.toFullServiceName(), /*auditref*/null));
}
@Override
public void addApplication(AthensDomain tenantDomain, ApplicationId applicationName) {
List<TenantRoleAction> tenantRoleActions = createTenantRoleActions();
log("putProviderResourceGroupRoles(" +
"tenantDomain=%s, providerDomain=%s, service=%s, resourceGroup=%s, roleActions=%s)",
tenantDomain, service.getDomain().id(), service.getServiceName(), applicationName, tenantRoleActions);
runOrThrow(() -> {
ProviderResourceGroupRoles resourceGroupRoles = new ProviderResourceGroupRoles()
.setDomain(service.getDomain().id())
.setService(service.getServiceName())
.setTenant(tenantDomain.id())
.setResourceGroup(applicationName.id())
.setRoles(tenantRoleActions);
zmsClient.putProviderResourceGroupRoles(
tenantDomain.id(), service.getDomain(), service.getServiceName(),
applicationName.id(), /*auditref*/null, resourceGroupRoles);
});
}
@Override
public void deleteApplication(AthensDomain tenantDomain, ApplicationId applicationName) {
log("deleteProviderResourceGroupRoles(tenantDomain=%s, providerDomain=%s, service=%s, resourceGroup=%s)",
tenantDomain, service.getDomain().id(), service.getServiceName(), applicationName);
runOrThrow(() -> {
zmsClient.deleteProviderResourceGroupRoles(
tenantDomain.id(), service.getDomain().id(), service.getServiceName(), applicationName.id(), /*auditref*/null);
});
}
@Override
public boolean hasApplicationAccess(
AthenzPrincipal principal, ApplicationAction action, AthensDomain tenantDomain, ApplicationId applicationName) {
return hasAccess(
action.name(), applicationResourceString(tenantDomain, applicationName), principal);
}
@Override
public boolean hasTenantAdminAccess(AthenzPrincipal principal, AthensDomain tenantDomain) {
return hasAccess(TenantAction._modify_.name(), tenantResourceString(tenantDomain), principal);
}
/**
* Used when creating tenancies. As there are no tenancy policies at this point,
* we cannot use {@link #hasTenantAdminAccess(AthenzPrincipal, AthensDomain)}
*/
@Override
public boolean isDomainAdmin(AthenzPrincipal principal, AthensDomain domain) {
log("getMembership(domain=%s, role=%s, principal=%s)", domain, "admin", principal);
return getOrThrow(
() -> zmsClient.getMembership(domain.id(), "admin", principal.toYRN()).getIsMember());
}
@Override
public List<AthensDomain> getDomainList(String prefix) {
log.log(LogLevel.DEBUG, String.format("getDomainList(prefix=%s)", prefix));
return getOrThrow(
() -> {
DomainList domainList = zmsClient.getDomainList(
/*limit*/null, /*skip*/null, prefix, /*depth*/null, /*domain*/null,
/*productId*/ null, /*modifiedSince*/null);
return toAthensDomains(domainList.getNames());
});
}
@Override
public AthenzPublicKey getPublicKey(AthenzService service, String keyId) {
log("getPublicKeyEntry(domain=%s, service=%s, keyId=%s)", service.getDomain().id(), service.getServiceName(), keyId);
return getOrThrow(() -> {
PublicKeyEntry entry = zmsClient.getPublicKeyEntry(service.getDomain().id(), service.getServiceName(), keyId);
return fromYbase64EncodedKey(entry.getKey(), keyId);
});
}
@Override
public List<AthenzPublicKey> getPublicKeys(AthenzService service) {
log("getServiceIdentity(domain=%s, service=%s)", service.getDomain().id(), service.getServiceName());
return getOrThrow(() -> {
ServiceIdentity serviceIdentity = zmsClient.getServiceIdentity(service.getDomain().id(), service.getServiceName());
return toAthensPublicKeys(serviceIdentity.getPublicKeys());
});
}
private static AthenzPublicKey fromYbase64EncodedKey(String encodedKey, String keyId) {
return new AthenzPublicKey(Crypto.loadPublicKey(Crypto.ybase64DecodeString(encodedKey)), keyId);
}
private static List<TenantRoleAction> createTenantRoleActions() {
return Arrays.stream(ApplicationAction.values())
.map(action -> new TenantRoleAction().setAction(action.name()).setRole(action.roleName))
.collect(toList());
}
private static List<AthensDomain> toAthensDomains(List<String> domains) {
return domains.stream().map(AthensDomain::new).collect(toList());
}
private static List<AthenzPublicKey> toAthensPublicKeys(List<PublicKeyEntry> publicKeys) {
return publicKeys.stream()
.map(entry -> fromYbase64EncodedKey(entry.getKey(), entry.getId()))
.collect(toList());
}
private boolean hasAccess(String action, String resource, AthenzPrincipal principal) {
log("getAccess(action=%s, resource=%s, principal=%s)", action, resource, principal);
return getOrThrow(
() -> zmsClient.getAccess(action, resource, /*trustDomain*/null, principal.toYRN()).getGranted());
}
private static void log(String format, Object... args) {
log.log(LogLevel.DEBUG, String.format(format, args));
}
private static void runOrThrow(Runnable wrappedCode) {
try {
wrappedCode.run();
} catch (ZMSClientException e) {
logWarning(e);
throw new ZmsException(e);
}
}
private static <T> T getOrThrow(Supplier<T> wrappedCode) {
try {
return wrappedCode.get();
} catch (ZMSClientException e) {
logWarning(e);
throw new ZmsException(e);
}
}
private static void logWarning(ZMSClientException e) {
log.warning("Error from Athens: " + e.getMessage());
}
private String resourceStringPrefix(AthensDomain tenantDomain) {
return String.format("%s:service.%s.tenant.%s",
service.getDomain().id(), service.getServiceName(), tenantDomain.id());
}
private String tenantResourceString(AthensDomain tenantDomain) {
return resourceStringPrefix(tenantDomain) + ".wildcard";
}
private String applicationResourceString(AthensDomain tenantDomain, ApplicationId applicationName) {
return resourceStringPrefix(tenantDomain) + "." + "res_group" + "." + applicationName.id() + ".wildcard";
}
private enum TenantAction {
// This is meant to match only the '*' action of the 'admin' role.
// If needed, we can replace it with 'create', 'delete' etc. later.
_modify_
}
}
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