Merge "push: Do not blindly overwrite peer"

1 files changed, 143 insertions, 0 deletions

diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/PushConnectionTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/PushConnectionTest.java
new file mode 100644
index 0000000000..a3b4134aea
--- /dev/null
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/PushConnectionTest.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2015, Google Inc.
+ * and other copyright owners as documented in the project's IP log.
+ *
+ * This program and the accompanying materials are made available
+ * under the terms of the Eclipse Distribution License v1.0 which
+ * accompanies this distribution, is reproduced below, and is
+ * available at http://www.eclipse.org/org/documents/edl-v10.php
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ *
+ * - Neither the name of the Eclipse Foundation, Inc. nor the
+ *   names of its contributors may be used to endorse or promote
+ *   products derived from this software without specific prior
+ *   written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.eclipse.jgit.transport;
+
+import static org.eclipse.jgit.transport.RemoteRefUpdate.Status.REJECTED_OTHER_REASON;
+import static org.junit.Assert.assertEquals;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.eclipse.jgit.internal.storage.dfs.DfsRepositoryDescription;
+import org.eclipse.jgit.internal.storage.dfs.InMemoryRepository;
+import org.eclipse.jgit.lib.Constants;
+import org.eclipse.jgit.lib.NullProgressMonitor;
+import org.eclipse.jgit.lib.ObjectId;
+import org.eclipse.jgit.lib.ObjectInserter;
+import org.eclipse.jgit.lib.RefUpdate;
+import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.transport.resolver.ReceivePackFactory;
+import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
+import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+public class PushConnectionTest {
+	private URIish uri;
+	private TestProtocol<Object> testProtocol;
+	private Object ctx = new Object();
+	private InMemoryRepository server;
+	private InMemoryRepository client;
+	private ObjectId obj1;
+	private ObjectId obj2;
+	private ObjectId obj3;
+	private String refName = "refs/tags/blob";
+
+	@Before
+	public void setUp() throws Exception {
+		server = newRepo("server");
+		client = newRepo("client");
+		testProtocol = new TestProtocol<>(
+				null,
+				new ReceivePackFactory<Object>() {
+					@Override
+					public ReceivePack create(Object req, Repository db)
+							throws ServiceNotEnabledException,
+							ServiceNotAuthorizedException {
+						return new ReceivePack(db);
+					}
+				});
+		uri = testProtocol.register(ctx, server);
+
+		try (ObjectInserter ins = server.newObjectInserter()) {
+			obj1 = ins.insert(Constants.OBJ_BLOB, Constants.encode("test"));
+			obj3 = ins.insert(Constants.OBJ_BLOB, Constants.encode("not"));
+			ins.flush();
+
+			RefUpdate u = server.updateRef(refName);
+			u.setNewObjectId(obj1);
+			assertEquals(RefUpdate.Result.NEW, u.update());
+		}
+
+		try (ObjectInserter ins = client.newObjectInserter()) {
+			obj2 = ins.insert(Constants.OBJ_BLOB, Constants.encode("file"));
+			ins.flush();
+		}
+	}
+
+	@After
+	public void tearDown() {
+		Transport.unregister(testProtocol);
+	}
+
+	private static InMemoryRepository newRepo(String name) {
+		return new InMemoryRepository(new DfsRepositoryDescription(name));
+	}
+
+	@Test
+	public void testWrongOldIdDoesNotReplace() throws IOException {
+		RemoteRefUpdate rru = new RemoteRefUpdate(null, null, obj2, refName,
+				false, null, obj3);
+
+		Map<String, RemoteRefUpdate> updates = new HashMap<>();
+		updates.put(rru.getRemoteName(), rru);
+
+		Transport tn = testProtocol.open(uri, client, "server");
+		try {
+			PushConnection connection = tn.openPush();
+			try {
+				connection.push(NullProgressMonitor.INSTANCE, updates);
+			} finally {
+				connection.close();
+			}
+		} finally {
+			tn.close();
+		}
+
+		assertEquals(REJECTED_OTHER_REASON, rru.getStatus());
+		assertEquals("invalid old id sent", rru.getMessage());
+	}
+}