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// Copyright (C) 2013 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.account;
import com.google.gerrit.extensions.registration.DynamicMap;
import com.google.gerrit.extensions.restapi.AcceptsCreate;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.ChildCollection;
import com.google.gerrit.extensions.restapi.IdString;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.extensions.restapi.RestModifyView;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.extensions.restapi.RestView;
import com.google.gerrit.extensions.restapi.TopLevelResource;
import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.StarredChangesUtil;
import com.google.gerrit.server.StarredChangesUtil.IllegalLabelException;
import com.google.gerrit.server.StarredChangesUtil.MutuallyExclusiveLabelsException;
import com.google.gerrit.server.change.ChangeResource;
import com.google.gerrit.server.change.ChangesCollection;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.query.change.QueryChanges;
import com.google.gwtorm.server.OrmDuplicateKeyException;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import java.io.IOException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Singleton
public class StarredChanges
implements ChildCollection<AccountResource, AccountResource.StarredChange>,
AcceptsCreate<AccountResource> {
private static final Logger log = LoggerFactory.getLogger(StarredChanges.class);
private final ChangesCollection changes;
private final DynamicMap<RestView<AccountResource.StarredChange>> views;
private final Provider<Create> createProvider;
private final StarredChangesUtil starredChangesUtil;
@Inject
StarredChanges(
ChangesCollection changes,
DynamicMap<RestView<AccountResource.StarredChange>> views,
Provider<Create> createProvider,
StarredChangesUtil starredChangesUtil) {
this.changes = changes;
this.views = views;
this.createProvider = createProvider;
this.starredChangesUtil = starredChangesUtil;
}
@Override
public AccountResource.StarredChange parse(AccountResource parent, IdString id)
throws ResourceNotFoundException, OrmException, PermissionBackendException {
IdentifiedUser user = parent.getUser();
ChangeResource change = changes.parse(TopLevelResource.INSTANCE, id);
if (starredChangesUtil
.getLabels(user.getAccountId(), change.getId())
.contains(StarredChangesUtil.DEFAULT_LABEL)) {
return new AccountResource.StarredChange(user, change);
}
throw new ResourceNotFoundException(id);
}
@Override
public DynamicMap<RestView<AccountResource.StarredChange>> views() {
return views;
}
@Override
public RestView<AccountResource> list() throws ResourceNotFoundException {
return new RestReadView<AccountResource>() {
@Override
public Object apply(AccountResource self)
throws BadRequestException, AuthException, OrmException {
QueryChanges query = changes.list();
query.addQuery("starredby:" + self.getUser().getAccountId().get());
return query.apply(TopLevelResource.INSTANCE);
}
};
}
@Override
public RestModifyView<AccountResource, EmptyInput> create(AccountResource parent, IdString id)
throws UnprocessableEntityException {
try {
return createProvider.get().setChange(changes.parse(TopLevelResource.INSTANCE, id));
} catch (ResourceNotFoundException e) {
throw new UnprocessableEntityException(String.format("change %s not found", id.get()));
} catch (OrmException | PermissionBackendException e) {
log.error("cannot resolve change", e);
throw new UnprocessableEntityException("internal server error");
}
}
@Singleton
public static class Create implements RestModifyView<AccountResource, EmptyInput> {
private final Provider<CurrentUser> self;
private final StarredChangesUtil starredChangesUtil;
private ChangeResource change;
@Inject
Create(Provider<CurrentUser> self, StarredChangesUtil starredChangesUtil) {
this.self = self;
this.starredChangesUtil = starredChangesUtil;
}
public Create setChange(ChangeResource change) {
this.change = change;
return this;
}
@Override
public Response<?> apply(AccountResource rsrc, EmptyInput in)
throws RestApiException, OrmException, IOException {
if (self.get() != rsrc.getUser()) {
throw new AuthException("not allowed to add starred change");
}
try {
starredChangesUtil.star(
self.get().getAccountId(),
change.getProject(),
change.getId(),
StarredChangesUtil.DEFAULT_LABELS,
null);
} catch (MutuallyExclusiveLabelsException e) {
throw new ResourceConflictException(e.getMessage());
} catch (IllegalLabelException e) {
throw new BadRequestException(e.getMessage());
} catch (OrmDuplicateKeyException e) {
return Response.none();
}
return Response.none();
}
}
@Singleton
static class Put implements RestModifyView<AccountResource.StarredChange, EmptyInput> {
private final Provider<CurrentUser> self;
@Inject
Put(Provider<CurrentUser> self) {
this.self = self;
}
@Override
public Response<?> apply(AccountResource.StarredChange rsrc, EmptyInput in)
throws AuthException {
if (self.get() != rsrc.getUser()) {
throw new AuthException("not allowed update starred changes");
}
return Response.none();
}
}
@Singleton
public static class Delete implements RestModifyView<AccountResource.StarredChange, EmptyInput> {
private final Provider<CurrentUser> self;
private final StarredChangesUtil starredChangesUtil;
@Inject
Delete(Provider<CurrentUser> self, StarredChangesUtil starredChangesUtil) {
this.self = self;
this.starredChangesUtil = starredChangesUtil;
}
@Override
public Response<?> apply(AccountResource.StarredChange rsrc, EmptyInput in)
throws AuthException, OrmException, IOException, IllegalLabelException {
if (self.get() != rsrc.getUser()) {
throw new AuthException("not allowed remove starred change");
}
starredChangesUtil.star(
self.get().getAccountId(),
rsrc.getChange().getProject(),
rsrc.getChange().getId(),
null,
StarredChangesUtil.DEFAULT_LABELS);
return Response.none();
}
}
public static class EmptyInput {}
}