wkd-java/wkd-java/src/main/java/pgp/wkd/discovery/CertificateDiscoverer.java

75 lines
2.1 KiB
Java

// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package pgp.wkd.discovery;
import pgp.wkd.exception.MalformedUserIdException;
import pgp.wkd.WKDAddress;
import pgp.wkd.WKDAddressHelper;
import java.util.ArrayList;
import java.util.List;
/**
* Interface which describes an API to discover OpenPGP certificates via the WKD.
*/
public interface CertificateDiscoverer {
/**
* Discover OpenPGP certificates by querying the given <pre>address</pre> via the given <pre>method</pre>.
*
* @param method discovery method
* @param address wkd address
* @return response
*/
DiscoveryResponse discover(DiscoveryMethod method, WKDAddress address);
/**
* Discover OpenPGP certificates by {@link WKDAddress}.
*
* @param address address
* @return discovery result
*/
default DiscoveryResult discover(WKDAddress address) {
List<DiscoveryResponse> results = new ArrayList<>();
// advanced method
DiscoveryResponse advanced = discover(DiscoveryMethod.advanced, address);
results.add(advanced);
if (advanced.isSuccessful()) {
return new DiscoveryResult(results);
}
// direct method
results.add(discover(DiscoveryMethod.direct, address));
return new DiscoveryResult(results);
}
/**
* Discover OpenPGP certificates by email address.
*
* @param email email address
* @return discovery result
*
* @throws MalformedUserIdException in case of a malformed email address
*/
default DiscoveryResult discoverByEmail(String email) throws MalformedUserIdException {
return discover(WKDAddress.fromEmail(email));
}
/**
* Discover OpenPGP certificates by user-id.
*
* @param userId user-id
* @return discovery result
*
* @throws MalformedUserIdException in case of a malformed user-id
*/
default DiscoveryResult discoverByUserId(String userId) throws MalformedUserIdException {
return discover(WKDAddressHelper.wkdAddressFromUserId(userId));
}
}