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// Copyright (C) 2019 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.testing;
import static com.google.gerrit.testing.TestActionRefUpdateContext.testRefAction;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.eclipse.jgit.lib.Constants.OBJ_BLOB;
import static org.eclipse.jgit.lib.Constants.OBJ_TREE;
import com.google.gerrit.entities.Account;
import com.google.gerrit.entities.RefNames;
import com.google.gerrit.server.account.externalids.ExternalId;
import com.google.gerrit.server.account.externalids.storage.notedb.ExternalIdReader;
import java.io.IOException;
import org.eclipse.jgit.lib.CommitBuilder;
import org.eclipse.jgit.lib.Config;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectInserter;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.notes.NoteMap;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
/** Common methods for dealing with external IDs in tests. */
public class ExternalIdTestUtil {
public static String insertExternalIdWithoutAccountId(
Repository repo, RevWalk rw, PersonIdent ident, Account.Id accountId, String externalId)
throws IOException {
return insertExternalId(
repo,
rw,
ident,
(ins, noteMap) -> {
ExternalId extId =
ExternalId.create(
ExternalId.Key.parse(externalId, false), accountId, null, null, null);
ObjectId noteId = extId.key().sha1();
Config c = new Config();
extId.writeToConfig(c);
c.unset("externalId", extId.key().get(), "accountId");
byte[] raw = c.toText().getBytes(UTF_8);
ObjectId dataBlob = ins.insert(OBJ_BLOB, raw);
noteMap.set(noteId, dataBlob);
return noteId;
});
}
public static String insertExternalIdWithKeyThatDoesntMatchNoteId(
Repository repo, RevWalk rw, PersonIdent ident, Account.Id accountId, String externalId)
throws IOException {
return insertExternalId(
repo,
rw,
ident,
(ins, noteMap) -> {
ExternalId extId =
ExternalId.create(
ExternalId.Key.parse(externalId, false), accountId, null, null, null);
ObjectId noteId = ExternalId.Key.parse(externalId + "x", false).sha1();
Config c = new Config();
extId.writeToConfig(c);
byte[] raw = c.toText().getBytes(UTF_8);
ObjectId dataBlob = ins.insert(OBJ_BLOB, raw);
noteMap.set(noteId, dataBlob);
return noteId;
});
}
public static String insertExternalIdWithInvalidConfig(
Repository repo, RevWalk rw, PersonIdent ident, String externalId) throws IOException {
return insertExternalId(
repo,
rw,
ident,
(ins, noteMap) -> {
ObjectId noteId = ExternalId.Key.parse(externalId, false).sha1();
byte[] raw = "bad-config".getBytes(UTF_8);
ObjectId dataBlob = ins.insert(OBJ_BLOB, raw);
noteMap.set(noteId, dataBlob);
return noteId;
});
}
public static String insertExternalIdWithEmptyNote(
Repository repo, RevWalk rw, PersonIdent ident, String externalId) throws IOException {
return insertExternalId(
repo,
rw,
ident,
(ins, noteMap) -> {
ObjectId noteId = ExternalId.Key.parse(externalId, false).sha1();
byte[] raw = "".getBytes(UTF_8);
ObjectId dataBlob = ins.insert(OBJ_BLOB, raw);
noteMap.set(noteId, dataBlob);
return noteId;
});
}
private static String insertExternalId(
Repository repo, RevWalk rw, PersonIdent ident, ExternalIdInserter extIdInserter)
throws IOException {
ObjectId rev = ExternalIdReader.readRevision(repo);
NoteMap noteMap = ExternalIdReader.readNoteMap(rw, rev);
try (ObjectInserter ins = repo.newObjectInserter()) {
ObjectId noteId = extIdInserter.addNote(ins, noteMap);
CommitBuilder cb = new CommitBuilder();
cb.setMessage("Update external IDs");
cb.setTreeId(noteMap.writeTree(ins));
cb.setAuthor(ident);
cb.setCommitter(ident);
if (!rev.equals(ObjectId.zeroId())) {
cb.setParentId(rev);
} else {
cb.setParentIds(); // Ref is currently nonexistent, commit has no parents.
}
if (cb.getTreeId() == null) {
if (rev.equals(ObjectId.zeroId())) {
cb.setTreeId(ins.insert(OBJ_TREE, new byte[] {})); // No parent, assume empty tree.
} else {
RevCommit p = rw.parseCommit(rev);
cb.setTreeId(p.getTree()); // Copy tree from parent.
}
}
ObjectId commitId = ins.insert(cb);
ins.flush();
RefUpdate u = repo.updateRef(RefNames.REFS_EXTERNAL_IDS);
u.setExpectedOldObjectId(rev);
u.setNewObjectId(commitId);
RefUpdate.Result res = testRefAction(() -> u.update());
switch (res) {
case NEW:
case FAST_FORWARD:
case NO_CHANGE:
case RENAMED:
case FORCED:
break;
case LOCK_FAILURE:
case IO_FAILURE:
case NOT_ATTEMPTED:
case REJECTED:
case REJECTED_CURRENT_BRANCH:
case REJECTED_MISSING_OBJECT:
case REJECTED_OTHER_REASON:
default:
throw new IOException("Updating external IDs failed with " + res);
}
return noteId.getName();
}
}
}