private void needDataPacket() throws IOException {
if (eof || (channel == CH_DATA && available > 0)) return;
for (; ; ) {
available = pckIn.readLength();
if (available == 0) {
eof = true;
return;
}
channel = rawIn.read() & 0xff;
available -= HDR_SIZE; // length header plus channel indicator
if (available == 0) continue;
switch (channel) {
case CH_DATA:
return;
case CH_PROGRESS:
progress(readString(available));
continue;
case CH_ERROR:
eof = true;
throw new TransportException(PFX_REMOTE + readString(available));
default:
throw new PackProtocolException(
MessageFormat.format(JGitText.get().invalidChannel, channel));
}
}
}
@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());
}
@Test
public void testUsingUnknownBlobFails() throws Exception {
// Try to use the 'n' blob that is not on the server.
//
TestRepository<Repository> s = new TestRepository<Repository>(src);
RevBlob n = s.blob("n");
RevCommit N = s.commit().parent(B).add("q", n).create();
// But don't include it in the pack.
//
final TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(1024);
packHeader(pack, 2);
copy(pack, src.open(N));
copy(pack, src.open(s.parseBody(N).getTree()));
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(n, 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 " + n.name(), r.readString());
assertEquals("ng refs/heads/s n/a (unpacker error)", r.readString());
assertSame(PacketLineIn.END, r.readString());
}
@Test
public void testCreateBranchAtHiddenCommitFails() throws Exception {
final TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(64);
packHeader(pack, 0);
digest(pack);
final TemporaryBuffer.Heap inBuf = new TemporaryBuffer.Heap(256);
final PacketLineOut inPckLine = new PacketLineOut(inBuf);
inPckLine.writeString(
ObjectId.zeroId().name()
+ ' '
+ P.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(P, 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 commit " + P.name(), r.readString());
assertEquals("ng refs/heads/s n/a (unpacker error)", r.readString());
assertSame(PacketLineIn.END, r.readString());
}
private void recvCommands() throws IOException {
for (; ; ) {
String line;
try {
line = pckIn.readStringRaw();
} catch (EOFException eof) {
if (commands.isEmpty()) return;
throw eof;
}
if (line == PacketLineIn.END) break;
if (commands.isEmpty()) {
final int nul = line.indexOf('\0');
if (nul >= 0) {
for (String c : line.substring(nul + 1).split(" ")) enabledCapablities.add(c);
line = line.substring(0, nul);
}
}
if (line.length() < 83) {
final String m = JGitText.get().errorInvalidProtocolWantedOldNewRef;
sendError(m);
throw new PackProtocolException(m);
}
final ObjectId oldId = ObjectId.fromString(line.substring(0, 40));
final ObjectId newId = ObjectId.fromString(line.substring(41, 81));
final String name = line.substring(82);
final ReceiveCommand cmd = new ReceiveCommand(oldId, newId, name);
if (name.equals(Constants.HEAD)) {
cmd.setResult(Result.REJECTED_CURRENT_BRANCH);
} else {
cmd.setRef(refs.get(cmd.getRefName()));
}
commands.add(cmd);
}
}
