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- /*
- * Copyright (C) 2009, Google Inc.
- * Copyright (C) 2008, Imran M Yousuf <imyousuf@smartitengineering.com>
- * Copyright (C) 2007-2008, Robin Rosenberg <robin.rosenberg@dewire.com>
- * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> and others
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Distribution License v. 1.0 which is available at
- * https://www.eclipse.org/org/documents/edl-v10.php.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
- package org.eclipse.jgit.transport;
-
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertTrue;
- import static org.junit.Assert.fail;
-
- import java.io.ByteArrayInputStream;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.security.MessageDigest;
- import java.text.MessageFormat;
- import java.util.zip.Deflater;
-
- import org.eclipse.jgit.errors.TooLargeObjectInPackException;
- import org.eclipse.jgit.internal.JGitText;
- import org.eclipse.jgit.internal.storage.file.ObjectDirectoryPackParser;
- import org.eclipse.jgit.internal.storage.file.Pack;
- import org.eclipse.jgit.junit.JGitTestUtil;
- import org.eclipse.jgit.junit.RepositoryTestCase;
- import org.eclipse.jgit.junit.TestRepository;
- 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.Repository;
- import org.eclipse.jgit.revwalk.RevBlob;
- import org.eclipse.jgit.util.NB;
- import org.eclipse.jgit.util.TemporaryBuffer;
- import org.eclipse.jgit.util.io.UnionInputStream;
- import org.junit.After;
- import org.junit.Test;
-
- /**
- * Test indexing of git packs. A pack is read from a stream, copied
- * to a new pack and an index is created. Then the packs are tested
- * to make sure they contain the expected objects (well we don't test
- * for all of them unless the packs are very small).
- */
- public class PackParserTest extends RepositoryTestCase {
- /**
- * Test indexing one of the test packs in the egit repo. It has deltas.
- *
- * @throws IOException
- */
- @Test
- public void test1() throws IOException {
- File packFile = JGitTestUtil.getTestResourceFile("pack-34be9032ac282b11fa9babdc2b2a93ca996c9c2f.pack");
- try (InputStream is = new FileInputStream(packFile)) {
- ObjectDirectoryPackParser p = (ObjectDirectoryPackParser) index(is);
- p.parse(NullProgressMonitor.INSTANCE);
- Pack pack = p.getPack();
-
- assertTrue(pack.hasObject(ObjectId.fromString("4b825dc642cb6eb9a060e54bf8d69288fbee4904")));
- assertTrue(pack.hasObject(ObjectId.fromString("540a36d136cf413e4b064c2b0e0a4db60f77feab")));
- assertTrue(pack.hasObject(ObjectId.fromString("5b6e7c66c276e7610d4a73c70ec1a1f7c1003259")));
- assertTrue(pack.hasObject(ObjectId.fromString("6ff87c4664981e4397625791c8ea3bbb5f2279a3")));
- assertTrue(pack.hasObject(ObjectId.fromString("82c6b885ff600be425b4ea96dee75dca255b69e7")));
- assertTrue(pack.hasObject(ObjectId.fromString("902d5476fa249b7abc9d84c611577a81381f0327")));
- assertTrue(pack.hasObject(ObjectId.fromString("aabf2ffaec9b497f0950352b3e582d73035c2035")));
- assertTrue(pack.hasObject(ObjectId.fromString("c59759f143fb1fe21c197981df75a7ee00290799")));
- }
- }
-
- /**
- * This is just another pack. It so happens that we have two convenient pack to
- * test with in the repository.
- *
- * @throws IOException
- */
- @Test
- public void test2() throws IOException {
- File packFile = JGitTestUtil.getTestResourceFile("pack-df2982f284bbabb6bdb59ee3fcc6eb0983e20371.pack");
- try (InputStream is = new FileInputStream(packFile)) {
- ObjectDirectoryPackParser p = (ObjectDirectoryPackParser) index(is);
- p.parse(NullProgressMonitor.INSTANCE);
- Pack pack = p.getPack();
-
- assertTrue(pack.hasObject(ObjectId.fromString("02ba32d3649e510002c21651936b7077aa75ffa9")));
- assertTrue(pack.hasObject(ObjectId.fromString("0966a434eb1a025db6b71485ab63a3bfbea520b6")));
- assertTrue(pack.hasObject(ObjectId.fromString("09efc7e59a839528ac7bda9fa020dc9101278680")));
- assertTrue(pack.hasObject(ObjectId.fromString("0a3d7772488b6b106fb62813c4d6d627918d9181")));
- assertTrue(pack.hasObject(ObjectId.fromString("1004d0d7ac26fbf63050a234c9b88a46075719d3")));
- assertTrue(pack.hasObject(ObjectId.fromString("10da5895682013006950e7da534b705252b03be6")));
- assertTrue(pack.hasObject(ObjectId.fromString("1203b03dc816ccbb67773f28b3c19318654b0bc8")));
- assertTrue(pack.hasObject(ObjectId.fromString("15fae9e651043de0fd1deef588aa3fbf5a7a41c6")));
- assertTrue(pack.hasObject(ObjectId.fromString("16f9ec009e5568c435f473ba3a1df732d49ce8c3")));
- assertTrue(pack.hasObject(ObjectId.fromString("1fd7d579fb6ae3fe942dc09c2c783443d04cf21e")));
- assertTrue(pack.hasObject(ObjectId.fromString("20a8ade77639491ea0bd667bf95de8abf3a434c8")));
- assertTrue(pack.hasObject(ObjectId.fromString("2675188fd86978d5bc4d7211698b2118ae3bf658")));
- // and lots more...
- }
- }
-
- @Test
- public void testTinyThinPack() throws Exception {
- RevBlob a;
- try (TestRepository d = new TestRepository<Repository>(db)) {
- a = d.blob("a");
- }
-
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
-
- packHeader(pack, 1);
-
- pack.write((Constants.OBJ_REF_DELTA) << 4 | 4);
- a.copyRawTo(pack);
- deflate(pack, new byte[] { 0x1, 0x1, 0x1, 'b' });
-
- digest(pack);
-
- PackParser p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setAllowThin(true);
- p.parse(NullProgressMonitor.INSTANCE);
- }
-
- @Test
- public void testPackWithDuplicateBlob() throws Exception {
- final byte[] data = Constants.encode("0123456789abcdefg");
- try (TestRepository<Repository> d = new TestRepository<>(db)) {
- assertTrue(db.getObjectDatabase().has(d.blob(data)));
- }
-
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
- packHeader(pack, 1);
- pack.write((Constants.OBJ_BLOB) << 4 | 0x80 | 1);
- pack.write(1);
- deflate(pack, data);
- digest(pack);
-
- PackParser p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setAllowThin(false);
- p.parse(NullProgressMonitor.INSTANCE);
- }
-
- @Test
- public void testPackWithTrailingGarbage() throws Exception {
- RevBlob a;
- try (TestRepository d = new TestRepository<Repository>(db)) {
- a = d.blob("a");
- }
-
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
- packHeader(pack, 1);
- pack.write((Constants.OBJ_REF_DELTA) << 4 | 4);
- a.copyRawTo(pack);
- deflate(pack, new byte[] { 0x1, 0x1, 0x1, 'b' });
- digest(pack);
-
- PackParser p = index(new UnionInputStream(
- new ByteArrayInputStream(pack.toByteArray()),
- new ByteArrayInputStream(new byte[] { 0x7e })));
- p.setAllowThin(true);
- p.setCheckEofAfterPackFooter(true);
- try {
- p.parse(NullProgressMonitor.INSTANCE);
- fail("Pack with trailing garbage was accepted");
- } catch (IOException err) {
- assertEquals(
- MessageFormat.format(JGitText.get().expectedEOFReceived, "\\x7e"),
- err.getMessage());
- }
- }
-
- @Test
- public void testMaxObjectSizeFullBlob() throws Exception {
- final byte[] data = Constants.encode("0123456789");
- try (TestRepository d = new TestRepository<Repository>(db)) {
- d.blob(data);
- }
-
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
-
- packHeader(pack, 1);
- pack.write((Constants.OBJ_BLOB) << 4 | 10);
- deflate(pack, data);
- digest(pack);
-
- PackParser p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setMaxObjectSizeLimit(11);
- p.parse(NullProgressMonitor.INSTANCE);
-
- p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setMaxObjectSizeLimit(10);
- p.parse(NullProgressMonitor.INSTANCE);
-
- p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setMaxObjectSizeLimit(9);
- try {
- p.parse(NullProgressMonitor.INSTANCE);
- fail("PackParser should have failed");
- } catch (TooLargeObjectInPackException e) {
- assertTrue(e.getMessage().contains("10")); // obj size
- assertTrue(e.getMessage().contains("9")); // max obj size
- }
- }
-
- @Test
- public void testMaxObjectSizeDeltaBlock() throws Exception {
- RevBlob a;
- try (TestRepository d = new TestRepository<Repository>(db)) {
- a = d.blob("a");
- }
-
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
-
- packHeader(pack, 1);
- pack.write((Constants.OBJ_REF_DELTA) << 4 | 14);
- a.copyRawTo(pack);
- deflate(pack, new byte[] { 1, 11, 11, 'a', '0', '1', '2', '3', '4',
- '5', '6', '7', '8', '9' });
- digest(pack);
-
- PackParser p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setAllowThin(true);
- p.setMaxObjectSizeLimit(14);
- p.parse(NullProgressMonitor.INSTANCE);
-
- p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setAllowThin(true);
- p.setMaxObjectSizeLimit(13);
- try {
- p.parse(NullProgressMonitor.INSTANCE);
- fail("PackParser should have failed");
- } catch (TooLargeObjectInPackException e) {
- assertTrue(e.getMessage().contains("13")); // max obj size
- assertTrue(e.getMessage().contains("14")); // delta size
- }
- }
-
- @Test
- public void testMaxObjectSizeDeltaResultSize() throws Exception {
- RevBlob a;
- try (TestRepository d = new TestRepository<Repository>(db)) {
- a = d.blob("0123456789");
- }
-
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
-
- packHeader(pack, 1);
- pack.write((Constants.OBJ_REF_DELTA) << 4 | 4);
- a.copyRawTo(pack);
- deflate(pack, new byte[] { 10, 11, 1, 'a' });
- digest(pack);
-
- PackParser p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setAllowThin(true);
- p.setMaxObjectSizeLimit(11);
- p.parse(NullProgressMonitor.INSTANCE);
-
- p = index(new ByteArrayInputStream(pack.toByteArray()));
- p.setAllowThin(true);
- p.setMaxObjectSizeLimit(10);
- try {
- p.parse(NullProgressMonitor.INSTANCE);
- fail("PackParser should have failed");
- } catch (TooLargeObjectInPackException e) {
- assertTrue(e.getMessage().contains("11")); // result obj size
- assertTrue(e.getMessage().contains("10")); // max obj size
- }
- }
-
- @Test
- public void testNonMarkingInputStream() throws Exception {
- RevBlob a;
- try (TestRepository d = new TestRepository<Repository>(db)) {
- a = d.blob("a");
- }
-
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
- packHeader(pack, 1);
- pack.write((Constants.OBJ_REF_DELTA) << 4 | 4);
- a.copyRawTo(pack);
- deflate(pack, new byte[] { 0x1, 0x1, 0x1, 'b' });
- digest(pack);
-
- InputStream in = new ByteArrayInputStream(pack.toByteArray()) {
- @Override
- public boolean markSupported() {
- return false;
- }
-
- @Override
- public void mark(int maxlength) {
- fail("Mark should not be called");
- }
- };
-
- PackParser p = index(in);
- p.setAllowThin(true);
- p.setCheckEofAfterPackFooter(false);
- p.setExpectDataAfterPackFooter(true);
-
- try {
- p.parse(NullProgressMonitor.INSTANCE);
- fail("PackParser should have failed");
- } catch (IOException e) {
- assertEquals(e.getMessage(),
- JGitText.get().inputStreamMustSupportMark);
- }
- }
-
- @Test
- public void testDataAfterPackFooterSingleRead() throws Exception {
- RevBlob a;
- try (TestRepository d = new TestRepository<Repository>(db)) {
- a = d.blob("a");
- }
-
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(32*1024);
- packHeader(pack, 1);
- pack.write((Constants.OBJ_REF_DELTA) << 4 | 4);
- a.copyRawTo(pack);
- deflate(pack, new byte[] { 0x1, 0x1, 0x1, 'b' });
- digest(pack);
-
- byte packData[] = pack.toByteArray();
- byte streamData[] = new byte[packData.length + 1];
- System.arraycopy(packData, 0, streamData, 0, packData.length);
- streamData[packData.length] = 0x7e;
-
- InputStream in = new ByteArrayInputStream(streamData);
- PackParser p = index(in);
- p.setAllowThin(true);
- p.setCheckEofAfterPackFooter(false);
- p.setExpectDataAfterPackFooter(true);
-
- p.parse(NullProgressMonitor.INSTANCE);
-
- assertEquals(0x7e, in.read());
- }
-
- @Test
- public void testDataAfterPackFooterSplitObjectRead() throws Exception {
- final byte[] data = Constants.encode("0123456789");
-
- // Build a pack ~17k
- int objects = 900;
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(32 * 1024);
- packHeader(pack, objects);
-
- for (int i = 0; i < objects; i++) {
- pack.write((Constants.OBJ_BLOB) << 4 | 10);
- deflate(pack, data);
- }
- digest(pack);
-
- byte packData[] = pack.toByteArray();
- byte streamData[] = new byte[packData.length + 1];
- System.arraycopy(packData, 0, streamData, 0, packData.length);
- streamData[packData.length] = 0x7e;
- InputStream in = new ByteArrayInputStream(streamData);
- PackParser p = index(in);
- p.setAllowThin(true);
- p.setCheckEofAfterPackFooter(false);
- p.setExpectDataAfterPackFooter(true);
-
- p.parse(NullProgressMonitor.INSTANCE);
-
- assertEquals(0x7e, in.read());
- }
-
- @Test
- public void testDataAfterPackFooterSplitHeaderRead() throws Exception {
- final byte[] data = Constants.encode("a");
- RevBlob b;
- try (TestRepository d = new TestRepository<Repository>(db)) {
- b = d.blob(data);
- }
-
- int objects = 248;
- TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(32 * 1024);
- packHeader(pack, objects + 1);
- int offset = 13;
- StringBuilder sb = new StringBuilder();
- for (int i = 0; i < offset; i++)
- sb.append(i);
- offset = sb.toString().length();
- int lenByte = (Constants.OBJ_BLOB) << 4 | (offset & 0x0F);
- offset >>= 4;
- if (offset > 0)
- lenByte |= 1 << 7;
- pack.write(lenByte);
- while (offset > 0) {
- lenByte = offset & 0x7F;
- offset >>= 6;
- if (offset > 0)
- lenByte |= 1 << 7;
- pack.write(lenByte);
- }
- deflate(pack, Constants.encode(sb.toString()));
-
- for (int i = 0; i < objects; i++) {
- // The last pack header written falls across the 8192 byte boundary
- // between [8189:8210]
- pack.write((Constants.OBJ_REF_DELTA) << 4 | 4);
- b.copyRawTo(pack);
- deflate(pack, new byte[] { 0x1, 0x1, 0x1, 'b' });
- }
- digest(pack);
-
- byte packData[] = pack.toByteArray();
- byte streamData[] = new byte[packData.length + 1];
- System.arraycopy(packData, 0, streamData, 0, packData.length);
- streamData[packData.length] = 0x7e;
- InputStream in = new ByteArrayInputStream(streamData);
- PackParser p = index(in);
- p.setAllowThin(true);
- p.setCheckEofAfterPackFooter(false);
- p.setExpectDataAfterPackFooter(true);
-
- p.parse(NullProgressMonitor.INSTANCE);
-
- assertEquals(0x7e, in.read());
- }
-
- private static void packHeader(TemporaryBuffer.Heap tinyPack, int cnt)
- throws IOException {
- final byte[] hdr = new byte[8];
- NB.encodeInt32(hdr, 0, 2);
- NB.encodeInt32(hdr, 4, cnt);
-
- tinyPack.write(Constants.PACK_SIGNATURE);
- tinyPack.write(hdr, 0, 8);
- }
-
- private static void deflate(TemporaryBuffer.Heap tinyPack,
- final byte[] content)
- throws IOException {
- final Deflater deflater = new Deflater();
- final byte[] buf = new byte[128];
- deflater.setInput(content, 0, content.length);
- deflater.finish();
- do {
- final int n = deflater.deflate(buf, 0, buf.length);
- if (n > 0)
- tinyPack.write(buf, 0, n);
- } while (!deflater.finished());
- }
-
- private static void digest(TemporaryBuffer.Heap buf) throws IOException {
- MessageDigest md = Constants.newMessageDigest();
- md.update(buf.toByteArray());
- buf.write(md.digest());
- }
-
- private ObjectInserter inserter;
-
- @After
- public void release() {
- if (inserter != null) {
- inserter.close();
- }
- }
-
- private PackParser index(InputStream in) throws IOException {
- if (inserter == null)
- inserter = db.newObjectInserter();
- return inserter.newPackParser(in);
- }
- }
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