Merge "push: Do not blindly overwrite peer"
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commit
8179185d11
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@ -0,0 +1,143 @@
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/*
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* Copyright (C) 2015, Google Inc.
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
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* names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.transport;
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import static org.eclipse.jgit.transport.RemoteRefUpdate.Status.REJECTED_OTHER_REASON;
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import static org.junit.Assert.assertEquals;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.Map;
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import org.eclipse.jgit.internal.storage.dfs.DfsRepositoryDescription;
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import org.eclipse.jgit.internal.storage.dfs.InMemoryRepository;
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import org.eclipse.jgit.lib.Constants;
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import org.eclipse.jgit.lib.NullProgressMonitor;
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import org.eclipse.jgit.lib.ObjectId;
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import org.eclipse.jgit.lib.ObjectInserter;
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import org.eclipse.jgit.lib.RefUpdate;
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import org.eclipse.jgit.lib.Repository;
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import org.eclipse.jgit.transport.resolver.ReceivePackFactory;
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import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
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import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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public class PushConnectionTest {
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private URIish uri;
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private TestProtocol<Object> testProtocol;
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private Object ctx = new Object();
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private InMemoryRepository server;
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private InMemoryRepository client;
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private ObjectId obj1;
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private ObjectId obj2;
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private ObjectId obj3;
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private String refName = "refs/tags/blob";
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@Before
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public void setUp() throws Exception {
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server = newRepo("server");
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client = newRepo("client");
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testProtocol = new TestProtocol<>(
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null,
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new ReceivePackFactory<Object>() {
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@Override
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public ReceivePack create(Object req, Repository db)
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throws ServiceNotEnabledException,
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ServiceNotAuthorizedException {
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return new ReceivePack(db);
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}
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});
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uri = testProtocol.register(ctx, server);
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try (ObjectInserter ins = server.newObjectInserter()) {
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obj1 = ins.insert(Constants.OBJ_BLOB, Constants.encode("test"));
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obj3 = ins.insert(Constants.OBJ_BLOB, Constants.encode("not"));
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ins.flush();
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RefUpdate u = server.updateRef(refName);
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u.setNewObjectId(obj1);
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assertEquals(RefUpdate.Result.NEW, u.update());
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}
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try (ObjectInserter ins = client.newObjectInserter()) {
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obj2 = ins.insert(Constants.OBJ_BLOB, Constants.encode("file"));
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ins.flush();
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}
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}
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@After
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public void tearDown() {
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Transport.unregister(testProtocol);
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}
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private static InMemoryRepository newRepo(String name) {
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return new InMemoryRepository(new DfsRepositoryDescription(name));
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}
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@Test
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public void testWrongOldIdDoesNotReplace() throws IOException {
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RemoteRefUpdate rru = new RemoteRefUpdate(null, null, obj2, refName,
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false, null, obj3);
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Map<String, RemoteRefUpdate> updates = new HashMap<>();
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updates.put(rru.getRemoteName(), rru);
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Transport tn = testProtocol.open(uri, client, "server");
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try {
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PushConnection connection = tn.openPush();
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try {
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connection.push(NullProgressMonitor.INSTANCE, updates);
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} finally {
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connection.close();
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}
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} finally {
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tn.close();
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}
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assertEquals(REJECTED_OTHER_REASON, rru.getStatus());
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assertEquals("invalid old id sent", rru.getMessage());
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}
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}
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@ -237,9 +237,11 @@ private void writeCommands(final Collection<RemoteRefUpdate> refUpdates,
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}
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final StringBuilder sb = new StringBuilder();
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final Ref advertisedRef = getRef(rru.getRemoteName());
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final ObjectId oldId = (advertisedRef == null ? ObjectId.zeroId()
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: advertisedRef.getObjectId());
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ObjectId oldId = rru.getExpectedOldObjectId();
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if (oldId == null) {
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Ref adv = getRef(rru.getRemoteName());
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oldId = adv != null ? adv.getObjectId() : ObjectId.zeroId();
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}
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sb.append(oldId.name());
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sb.append(' ');
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sb.append(rru.getNewObjectId().name());
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@ -212,6 +212,9 @@ private Map<String, RemoteRefUpdate> prepareRemoteUpdates()
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}
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continue;
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}
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if (!rru.isExpectingOldObjectId()) {
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rru.setExpectedOldObjectId(advertisedOld);
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}
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// create ref (hasn't existed on remote side) and delete ref
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// are always fast-forward commands, feasible at this level
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@ -125,7 +125,7 @@ public static enum Status {
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OK;
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}
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private final ObjectId expectedOldObjectId;
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private ObjectId expectedOldObjectId;
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private final ObjectId newObjectId;
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@ -440,6 +440,10 @@ public String getMessage() {
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return message;
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}
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void setExpectedOldObjectId(ObjectId id) {
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expectedOldObjectId = id;
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}
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void setStatus(final Status status) {
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this.status = status;
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}
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