@Test
  public void testUsingHiddenDeltaBaseFails() throws Exception {
    byte[] delta = {0x1, 0x1, 0x1, 'c'};
    TestRepository<Repository> s = new TestRepository<Repository>(src);
    RevCommit N =
        s.commit()
            .parent(B)
            .add("q", s.blob(BinaryDelta.apply(dst.open(b).getCachedBytes(), delta)))
            .create();

    final TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
    packHeader(pack, 3);
    copy(pack, src.open(N));
    copy(pack, src.open(s.parseBody(N).getTree()));
    pack.write((Constants.OBJ_REF_DELTA) << 4 | 4);
    b.copyRawTo(pack);
    deflate(pack, delta);
    digest(pack);

    final TemporaryBuffer.Heap inBuf = new TemporaryBuffer.Heap(1024);
    final PacketLineOut inPckLine = new PacketLineOut(inBuf);
    inPckLine.writeString(
        ObjectId.zeroId().name()
            + ' '
            + N.name()
            + ' '
            + "refs/heads/s"
            + '\0'
            + BasePackPushConnection.CAPABILITY_REPORT_STATUS);
    inPckLine.end();
    pack.writeTo(inBuf, PM);

    final TemporaryBuffer.Heap outBuf = new TemporaryBuffer.Heap(1024);
    final ReceivePack rp = new ReceivePack(dst);
    rp.setCheckReceivedObjects(true);
    rp.setCheckReferencedObjectsAreReachable(true);
    rp.setAdvertiseRefsHook(new HidePrivateHook());
    try {
      receive(rp, inBuf, outBuf);
      fail("Expected UnpackException");
    } catch (UnpackException failed) {
      Throwable err = failed.getCause();
      assertTrue(err instanceof MissingObjectException);
      MissingObjectException moe = (MissingObjectException) err;
      assertEquals(b, moe.getObjectId());
    }

    final PacketLineIn r = asPacketLineIn(outBuf);
    String master = r.readString();
    int nul = master.indexOf('\0');
    assertTrue("has capability list", nul > 0);
    assertEquals(B.name() + ' ' + R_MASTER, master.substring(0, nul));
    assertSame(PacketLineIn.END, r.readString());

    assertEquals("unpack error Missing blob " + b.name(), r.readString());
    assertEquals("ng refs/heads/s n/a (unpacker error)", r.readString());
    assertSame(PacketLineIn.END, r.readString());
  }
예제 #2
0
  @Override
  protected void run() throws Exception {
    ObjectReader reader = db.newObjectReader();
    RevObject obj = new RevWalk(reader).parseAny(objectId);
    byte[] delta = getDelta(reader, obj);

    // We're crossing our fingers that this will be a delta. Double
    // check the size field in the header, it should match.
    //
    long size = reader.getObjectSize(obj, obj.getType());
    try {
      if (BinaryDelta.getResultSize(delta) != size)
        throw die("Object " + obj.name() + " is not a delta");
    } catch (ArrayIndexOutOfBoundsException bad) {
      throw die("Object " + obj.name() + " is not a delta");
    }

    outw.println(BinaryDelta.format(delta));
  }