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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 static com.google.gerrit.server.config.ConfigUtil.loadSection;
import static com.google.gerrit.server.config.ConfigUtil.skipField;
import com.google.gerrit.extensions.client.DiffPreferencesInfo;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.config.AllUsersName;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.git.UserConfigSections;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import java.io.IOException;
import java.lang.reflect.Field;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.eclipse.jgit.lib.Repository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Singleton
public class GetDiffPreferences implements RestReadView<AccountResource> {
private static final Logger log = LoggerFactory.getLogger(GetDiffPreferences.class);
private final Provider<CurrentUser> self;
private final Provider<AllUsersName> allUsersName;
private final GitRepositoryManager gitMgr;
@Inject
GetDiffPreferences(
Provider<CurrentUser> self,
Provider<AllUsersName> allUsersName,
GitRepositoryManager gitMgr) {
this.self = self;
this.allUsersName = allUsersName;
this.gitMgr = gitMgr;
}
@Override
public DiffPreferencesInfo apply(AccountResource rsrc)
throws AuthException, ConfigInvalidException, IOException {
if (self.get() != rsrc.getUser() && !self.get().getCapabilities().canAdministrateServer()) {
throw new AuthException("restricted to administrator");
}
Account.Id id = rsrc.getUser().getAccountId();
return readFromGit(id, gitMgr, allUsersName.get(), null);
}
static DiffPreferencesInfo readFromGit(
Account.Id id, GitRepositoryManager gitMgr, AllUsersName allUsersName, DiffPreferencesInfo in)
throws IOException, ConfigInvalidException, RepositoryNotFoundException {
try (Repository git = gitMgr.openRepository(allUsersName)) {
VersionedAccountPreferences p = VersionedAccountPreferences.forUser(id);
p.load(git);
DiffPreferencesInfo prefs = new DiffPreferencesInfo();
loadSection(
p.getConfig(), UserConfigSections.DIFF, null, prefs, readDefaultsFromGit(git, in), in);
return prefs;
}
}
static DiffPreferencesInfo readDefaultsFromGit(Repository git, DiffPreferencesInfo in)
throws ConfigInvalidException, IOException {
VersionedAccountPreferences dp = VersionedAccountPreferences.forDefault();
dp.load(git);
DiffPreferencesInfo allUserPrefs = new DiffPreferencesInfo();
loadSection(
dp.getConfig(),
UserConfigSections.DIFF,
null,
allUserPrefs,
DiffPreferencesInfo.defaults(),
in);
return updateDefaults(allUserPrefs);
}
private static DiffPreferencesInfo updateDefaults(DiffPreferencesInfo input) {
DiffPreferencesInfo result = DiffPreferencesInfo.defaults();
try {
for (Field field : input.getClass().getDeclaredFields()) {
if (skipField(field)) {
continue;
}
Object newVal = field.get(input);
if (newVal != null) {
field.set(result, newVal);
}
}
} catch (IllegalAccessException e) {
log.warn("Cannot get default diff preferences from All-Users", e);
return DiffPreferencesInfo.defaults();
}
return result;
}
}