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// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.athenz.client.zms;
import com.yahoo.vespa.athenz.api.AthenzDomain;
import com.yahoo.vespa.athenz.api.AthenzIdentity;
import com.yahoo.vespa.athenz.api.AthenzResourceName;
import com.yahoo.vespa.athenz.api.AthenzRole;
import com.yahoo.vespa.athenz.api.OktaAccessToken;
import com.yahoo.vespa.athenz.api.OktaIdentityToken;
import com.yahoo.vespa.athenz.client.ErrorHandler;
import com.yahoo.vespa.athenz.client.common.ClientBase;
import com.yahoo.vespa.athenz.client.zms.bindings.AccessResponseEntity;
import com.yahoo.vespa.athenz.client.zms.bindings.AssertionEntity;
import com.yahoo.vespa.athenz.client.zms.bindings.DomainListResponseEntity;
import com.yahoo.vespa.athenz.client.zms.bindings.MembershipResponseEntity;
import com.yahoo.vespa.athenz.client.zms.bindings.PolicyEntity;
import com.yahoo.vespa.athenz.client.zms.bindings.ProviderResourceGroupRolesRequestEntity;
import com.yahoo.vespa.athenz.client.zms.bindings.TenancyRequestEntity;
import com.yahoo.vespa.athenz.identity.ServiceIdentityProvider;
import org.apache.http.Header;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.message.BasicHeader;
import javax.net.ssl.SSLContext;
import java.net.URI;
import java.util.Collections;
import java.util.List;
import java.util.OptionalInt;
import java.util.Set;
import java.util.function.Supplier;
import static java.util.stream.Collectors.toList;
/**
* @author bjorncs
*/
public class DefaultZmsClient extends ClientBase implements ZmsClient {
private final URI zmsUrl;
private final AthenzIdentity identity;
public DefaultZmsClient(URI zmsUrl, AthenzIdentity identity, SSLContext sslContext, ErrorHandler errorHandler) {
this(zmsUrl, identity, () -> sslContext, errorHandler);
}
public DefaultZmsClient(URI zmsUrl, ServiceIdentityProvider identityProvider, ErrorHandler errorHandler) {
this(zmsUrl, identityProvider.identity(), identityProvider::getIdentitySslContext, errorHandler);
}
private DefaultZmsClient(URI zmsUrl, AthenzIdentity identity, Supplier<SSLContext> sslContextSupplier, ErrorHandler errorHandler) {
super("vespa-zms-client", sslContextSupplier, ZmsClientException::new, null, errorHandler);
this.zmsUrl = addTrailingSlash(zmsUrl);
this.identity = identity;
}
private static URI addTrailingSlash(URI zmsUrl) {
return zmsUrl.getPath().endsWith("/") ? zmsUrl : URI.create(zmsUrl.toString() + '/');
}
@Override
public void createTenancy(AthenzDomain tenantDomain, AthenzIdentity providerService, OktaIdentityToken identityToken, OktaAccessToken accessToken) {
URI uri = zmsUrl.resolve(String.format("domain/%s/tenancy/%s", tenantDomain.getName(), providerService.getFullName()));
HttpUriRequest request = RequestBuilder.put()
.setUri(uri)
.addHeader(createCookieHeaderWithOktaTokens(identityToken, accessToken))
.setEntity(toJsonStringEntity(new TenancyRequestEntity(tenantDomain, providerService, Collections.emptyList())))
.build();
execute(request, response -> readEntity(response, Void.class));
}
@Override
public void deleteTenancy(AthenzDomain tenantDomain, AthenzIdentity providerService, OktaIdentityToken identityToken, OktaAccessToken accessToken) {
URI uri = zmsUrl.resolve(String.format("domain/%s/tenancy/%s", tenantDomain.getName(), providerService.getFullName()));
HttpUriRequest request = RequestBuilder.delete()
.setUri(uri)
.addHeader(createCookieHeaderWithOktaTokens(identityToken, accessToken))
.build();
execute(request, response -> readEntity(response, Void.class));
}
@Override
public void createProviderResourceGroup(AthenzDomain tenantDomain, AthenzIdentity providerService, String resourceGroup,
Set<RoleAction> roleActions, OktaIdentityToken identityToken, OktaAccessToken accessToken) {
URI uri = zmsUrl.resolve(String.format("domain/%s/provDomain/%s/provService/%s/resourceGroup/%s", tenantDomain.getName(), providerService.getDomainName(), providerService.getName(), resourceGroup));
HttpUriRequest request = RequestBuilder.put()
.setUri(uri)
.addHeader(createCookieHeaderWithOktaTokens(identityToken, accessToken))
.setEntity(toJsonStringEntity(new ProviderResourceGroupRolesRequestEntity(providerService, tenantDomain, roleActions, resourceGroup)))
.build();
execute(request, response -> readEntity(response, Void.class)); // Note: The ZMS API will actually return a json object that is similar to ProviderResourceGroupRolesRequestEntity
}
@Override
public void deleteProviderResourceGroup(AthenzDomain tenantDomain, AthenzIdentity providerService, String resourceGroup,
OktaIdentityToken identityToken, OktaAccessToken accessToken) {
URI uri = zmsUrl.resolve(String.format("domain/%s/provDomain/%s/provService/%s/resourceGroup/%s", tenantDomain.getName(), providerService.getDomainName(), providerService.getName(), resourceGroup));
HttpUriRequest request = RequestBuilder.delete()
.setUri(uri)
.addHeader(createCookieHeaderWithOktaTokens(identityToken, accessToken))
.build();
execute(request, response -> readEntity(response, Void.class));
}
@Override
public void addRoleMember(AthenzRole role, AthenzIdentity member) {
URI uri = zmsUrl.resolve(String.format("domain/%s/role/%s/member/%s", role.domain().getName(), role.roleName(), member.getFullName()));
HttpUriRequest request = RequestBuilder.put(uri).build();
execute(request, response -> readEntity(response, Void.class));
}
@Override
public void deleteRoleMember(AthenzRole role, AthenzIdentity member) {
URI uri = zmsUrl.resolve(String.format("domain/%s/role/%s/member/%s", role.domain().getName(), role.roleName(), member.getFullName()));
HttpUriRequest request = RequestBuilder.delete(uri).build();
execute(request, response -> readEntity(response, Void.class));
}
@Override
public boolean getMembership(AthenzRole role, AthenzIdentity identity) {
URI uri = zmsUrl.resolve(String.format("domain/%s/role/%s/member/%s", role.domain().getName(), role.roleName(), identity.getFullName()));
HttpUriRequest request = RequestBuilder.get()
.setUri(uri)
.build();
return execute(request, response -> {
MembershipResponseEntity membership = readEntity(response, MembershipResponseEntity.class);
return membership.isMember;
});
}
@Override
public List<AthenzDomain> getDomainList(String prefix) {
HttpUriRequest request = RequestBuilder.get()
.setUri(zmsUrl.resolve("domain"))
.addParameter("prefix", prefix)
.build();
return execute(request, response -> {
DomainListResponseEntity result = readEntity(response, DomainListResponseEntity.class);
return result.domains.stream().map(AthenzDomain::new).collect(toList());
});
}
@Override
public boolean hasAccess(AthenzResourceName resource, String action, AthenzIdentity identity) {
URI uri = zmsUrl.resolve(String.format("access/%s/%s?principal=%s",
action, resource.toResourceNameString(), identity.getFullName()));
HttpUriRequest request = RequestBuilder.get()
.setUri(uri)
.build();
return execute(request, response -> {
AccessResponseEntity result = readEntity(response, AccessResponseEntity.class);
return result.granted;
});
}
@Override
public void addPolicyRule(AthenzDomain athenzDomain, String athenzPolicy, String action, AthenzResourceName resourceName, AthenzRole athenzRole) {
URI uri = zmsUrl.resolve(String.format("domain/%s/policy/%s/assertion",
athenzDomain.getName(), athenzPolicy));
HttpUriRequest request = RequestBuilder.put()
.setUri(uri)
.setEntity(toJsonStringEntity(new AssertionEntity(athenzRole.toResourceNameString(), resourceName.toResourceNameString(), action)))
.build();
execute(request, response -> readEntity(response, Void.class));
}
@Override
public boolean deletePolicyRule(AthenzDomain athenzDomain, String athenzPolicy, String action, AthenzResourceName resourceName, AthenzRole athenzRole) {
URI uri = zmsUrl.resolve(String.format("domain/%s/policy/%s",
athenzDomain.getName(), athenzPolicy));
HttpUriRequest request = RequestBuilder.get()
.setUri(uri)
.build();
PolicyEntity policyEntity = execute(request, response -> readEntity(response, PolicyEntity.class));
OptionalInt assertionId = policyEntity.getAssertions().stream()
.filter(assertionEntity -> assertionEntity.getAction().equals(action) &&
assertionEntity.getResource().equals(resourceName.toResourceNameString()) &&
assertionEntity.getRole().equals(athenzRole.toResourceNameString()))
.mapToInt(AssertionEntity::getId).findFirst();
if (assertionId.isEmpty()) {
return false;
}
uri = zmsUrl.resolve(String.format("domain/%s/policy/%s/assertion/%d",
athenzDomain.getName(), athenzPolicy, assertionId.getAsInt()));
request = RequestBuilder.delete()
.setUri(uri)
.build();
execute(request, response -> readEntity(response, Void.class));
return true;
}
private static Header createCookieHeaderWithOktaTokens(OktaIdentityToken identityToken, OktaAccessToken accessToken) {
return new BasicHeader("Cookie", String.format("okta_at=%s; okta_it=%s", accessToken.token(), identityToken.token()));
}
}
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