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// Copyright (C) 2017 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.externalids;
import static com.google.gerrit.server.account.externalids.ExternalId.SCHEME_USERNAME;
import static java.util.stream.Collectors.joining;
import com.google.common.collect.ListMultimap;
import com.google.common.collect.MultimapBuilder;
import com.google.gerrit.extensions.api.config.ConsistencyCheckInfo.ConsistencyProblemInfo;
import com.google.gerrit.server.account.AccountCache;
import com.google.gerrit.server.account.HashedPassword;
import com.google.gerrit.server.config.AllUsersName;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.mail.send.OutgoingEmailValidator;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.codec.DecoderException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.notes.Note;
import org.eclipse.jgit.notes.NoteMap;
import org.eclipse.jgit.revwalk.RevWalk;
@Singleton
public class ExternalIdsConsistencyChecker {
private final GitRepositoryManager repoManager;
private final AllUsersName allUsers;
private final AccountCache accountCache;
private final OutgoingEmailValidator validator;
@Inject
ExternalIdsConsistencyChecker(
GitRepositoryManager repoManager,
AllUsersName allUsers,
AccountCache accountCache,
OutgoingEmailValidator validator) {
this.repoManager = repoManager;
this.allUsers = allUsers;
this.accountCache = accountCache;
this.validator = validator;
}
public List<ConsistencyProblemInfo> check() throws IOException, ConfigInvalidException {
try (Repository repo = repoManager.openRepository(allUsers)) {
return check(ExternalIdNotes.loadReadOnly(allUsers, repo));
}
}
public List<ConsistencyProblemInfo> check(ObjectId rev)
throws IOException, ConfigInvalidException {
try (Repository repo = repoManager.openRepository(allUsers)) {
return check(ExternalIdNotes.loadReadOnly(allUsers, repo, rev));
}
}
private List<ConsistencyProblemInfo> check(ExternalIdNotes extIdNotes) throws IOException {
List<ConsistencyProblemInfo> problems = new ArrayList<>();
ListMultimap<String, ExternalId.Key> emails =
MultimapBuilder.hashKeys().arrayListValues().build();
try (RevWalk rw = new RevWalk(extIdNotes.getRepository())) {
NoteMap noteMap = extIdNotes.getNoteMap();
for (Note note : noteMap) {
byte[] raw = ExternalIdNotes.readNoteData(rw, note.getData());
try {
ExternalId extId = ExternalId.parse(note.getName(), raw, note.getData());
problems.addAll(validateExternalId(extId));
if (extId.email() != null) {
emails.put(extId.email(), extId.key());
}
} catch (ConfigInvalidException e) {
addError(String.format(e.getMessage()), problems);
}
}
}
emails
.asMap()
.entrySet()
.stream()
.filter(e -> e.getValue().size() > 1)
.forEach(
e ->
addError(
String.format(
"Email '%s' is not unique, it's used by the following external IDs: %s",
e.getKey(),
e.getValue()
.stream()
.map(k -> "'" + k.get() + "'")
.sorted()
.collect(joining(", "))),
problems));
return problems;
}
private List<ConsistencyProblemInfo> validateExternalId(ExternalId extId) {
List<ConsistencyProblemInfo> problems = new ArrayList<>();
if (!accountCache.get(extId.accountId()).isPresent()) {
addError(
String.format(
"External ID '%s' belongs to account that doesn't exist: %s",
extId.key().get(), extId.accountId().get()),
problems);
}
if (extId.email() != null && !validator.isValid(extId.email())) {
addError(
String.format(
"External ID '%s' has an invalid email: %s", extId.key().get(), extId.email()),
problems);
}
if (extId.password() != null && extId.isScheme(SCHEME_USERNAME)) {
try {
HashedPassword.decode(extId.password());
} catch (DecoderException e) {
addError(
String.format(
"External ID '%s' has an invalid password: %s", extId.key().get(), e.getMessage()),
problems);
}
}
return problems;
}
private static void addError(String error, List<ConsistencyProblemInfo> problems) {
problems.add(new ConsistencyProblemInfo(ConsistencyProblemInfo.Status.ERROR, error));
}
}
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