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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.athenz.zpe;
import com.yahoo.athenz.auth.token.AccessToken;
import com.yahoo.athenz.zpe.AuthZpeClient;
import com.yahoo.vespa.athenz.api.AthenzAccessToken;
import com.yahoo.vespa.athenz.api.AthenzResourceName;
import com.yahoo.vespa.athenz.api.AthenzRole;
import com.yahoo.vespa.athenz.api.ZToken;
import com.yahoo.vespa.athenz.zpe.AuthorizationResult.Type;
import java.security.cert.X509Certificate;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* The default implementation of {@link Zpe}.
* This implementation is currently based on the official Athenz ZPE library.
*
* @author bjorncs
*/
public class DefaultZpe implements Zpe {
// Disable log spam from ZPE library
private static final Logger fpksLogger =
Logger.getLogger(com.yahoo.athenz.zpe.pkey.file.FilePublicKeyStore.class.getName());
static {
fpksLogger.setLevel(Level.SEVERE);
}
public DefaultZpe() {
AuthZpeClient.init();
// Disable access token cert offset validation to allow existing tokens with refreshed certs
AccessToken.setAccessTokenCertOffset(-1);
}
@Override
public AuthorizationResult checkAccessAllowed(ZToken roleToken, AthenzResourceName resourceName, String action) {
StringBuilder returnedMatchedRole = new StringBuilder();
AuthZpeClient.AccessCheckStatus rawResult =
AuthZpeClient.allowAccess(roleToken.getRawToken(), resourceName.toResourceNameString(), action, returnedMatchedRole);
return createResult(returnedMatchedRole, rawResult, resourceName);
}
@Override
public AuthorizationResult checkAccessAllowed(X509Certificate roleCertificate, AthenzResourceName resourceName, String action) {
StringBuilder returnedMatchedRole = new StringBuilder();
AuthZpeClient.AccessCheckStatus rawResult =
AuthZpeClient.allowAccess(roleCertificate, resourceName.toResourceNameString(), action, returnedMatchedRole);
return createResult(returnedMatchedRole, rawResult, resourceName);
}
@Override
public AuthorizationResult checkAccessAllowed(
AthenzAccessToken accessToken, X509Certificate identityCertificate, AthenzResourceName resourceName, String action) {
StringBuilder returnedMatchedRole = new StringBuilder();
AuthZpeClient.AccessCheckStatus rawResult;
if (identityCertificate == null) {
rawResult = AuthZpeClient.allowAccess(accessToken.value(), resourceName.toResourceNameString(), action, returnedMatchedRole);
} else {
rawResult = AuthZpeClient.allowAccess(
accessToken.value(), identityCertificate, /*certHash*/null, resourceName.toResourceNameString(), action, returnedMatchedRole);
}
return createResult(returnedMatchedRole, rawResult, resourceName);
}
@Override
public AuthorizationResult checkAccessAllowed(AthenzAccessToken accessToken, AthenzResourceName resourceName, String action) {
return checkAccessAllowed(accessToken, null, resourceName, action);
}
private static AuthorizationResult createResult(
StringBuilder matchedRole, AuthZpeClient.AccessCheckStatus rawResult, AthenzResourceName resourceName) {
return new AuthorizationResult(Type.fromAccessCheckStatus(rawResult), toRole(matchedRole, resourceName));
}
private static AthenzRole toRole(StringBuilder rawRole, AthenzResourceName resourceName) {
if (rawRole.length() == 0) {
return null;
} else {
return new AthenzRole(resourceName.getDomain(), rawRole.toString());
}
}
}
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