com.google.gerrit.server.auth.UniversalAuthBackend Maven / Gradle / Ivy
// Copyright (C) 2012 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.server.auth;
import static java.util.Objects.requireNonNull;
import com.google.gerrit.server.plugincontext.PluginSetContext;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.util.ArrayList;
import java.util.List;
/** Universal implementation of the AuthBackend that works with the injected set of AuthBackends. */
@Singleton
public final class UniversalAuthBackend implements AuthBackend {
private final PluginSetContext authBackends;
@Inject
UniversalAuthBackend(PluginSetContext authBackends) {
this.authBackends = authBackends;
}
@Override
public AuthUser authenticate(AuthRequest request) throws AuthException {
List authUsers = new ArrayList<>();
List authExs = new ArrayList<>();
authBackends.runEach(
backend -> {
try {
authUsers.add(requireNonNull(backend.authenticate(request)));
} catch (MissingCredentialsException ex) {
// Not handled by this backend.
} catch (AuthException ex) {
authExs.add(ex);
}
});
// Handle the valid responses
if (authUsers.size() == 1) {
return authUsers.get(0);
} else if (authUsers.isEmpty() && authExs.size() == 1) {
throw authExs.get(0);
} else if (authExs.isEmpty() && authUsers.isEmpty()) {
throw new MissingCredentialsException();
}
String msg =
String.format(
"Multiple AuthBackends attempted to handle request: authUsers=%s authExs=%s",
authUsers, authExs);
throw new AuthException(msg);
}
@Override
public String getDomain() {
throw new UnsupportedOperationException("UniversalAuthBackend doesn't support domain.");
}
}