package packp
import (
"bytes"
"io"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/format/pktline"
. "gopkg.in/check.v1"
)
type UpdReqDecodeSuite struct{}
var _ = Suite(&UpdReqDecodeSuite{})
func (s *UpdReqDecodeSuite) TestEmpty(c *C) {
r := NewReferenceUpdateRequest()
var buf bytes.Buffer
c.Assert(r.Decode(&buf), Equals, ErrEmpty)
c.Assert(r, DeepEquals, NewReferenceUpdateRequest())
}
func (s *UpdReqDecodeSuite) TestInvalidPktlines(c *C) {
r := NewReferenceUpdateRequest()
input := bytes.NewReader([]byte("xxxxxxxxxx"))
c.Assert(r.Decode(input), ErrorMatches, "invalid pkt-len found")
}
func (s *UpdReqDecodeSuite) TestInvalidShadow(c *C) {
payloads := []string{
"shallow",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid shallow line length: expected 48, got 7$")
payloads = []string{
"shallow ",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid shallow line length: expected 48, got 8$")
payloads = []string{
"shallow 1ecf0ef2c2dffb796033e5a02219af86ec65",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid shallow line length: expected 48, got 44$")
payloads = []string{
"shallow 1ecf0ef2c2dffb796033e5a02219af86ec6584e54",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid shallow line length: expected 48, got 49$")
payloads = []string{
"shallow 1ecf0ef2c2dffb796033e5a02219af86ec6584eu",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid shallow object id: invalid hash: .*")
}
func (s *UpdReqDecodeSuite) TestMalformedCommand(c *C) {
payloads := []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5x2ecf0ef2c2dffb796033e5a02219af86ec6584e5xmyref\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: malformed command: EOF$")
payloads = []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5x2ecf0ef2c2dffb796033e5a02219af86ec6584e5xmyref",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: malformed command: EOF$")
}
func (s *UpdReqDecodeSuite) TestInvalidCommandInvalidHash(c *C) {
payloads := []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid old object id: invalid hash size: expected 40, got 39$")
payloads = []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e myref\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid new object id: invalid hash size: expected 40, got 39$")
payloads = []string{
"1ecf0ef2c2dffb796033e5a02219af86e 2ecf0ef2c2dffb796033e5a02219af86ec6 m\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid command and capabilities line length: expected at least 84, got 72$")
payloads = []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584eu 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid old object id: invalid hash: .*$")
payloads = []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584eu myref\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid new object id: invalid hash: .*$")
}
func (s *UpdReqDecodeSuite) TestInvalidCommandMissingNullDelimiter(c *C) {
payloads := []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "capabilities delimiter not found")
}
func (s *UpdReqDecodeSuite) TestInvalidCommandMissingName(c *C) {
payloads := []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5\x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid command and capabilities line length: expected at least 84, got 82$")
payloads = []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 \x00",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid command and capabilities line length: expected at least 84, got 83$")
payloads = []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid command line length: expected at least 83, got 81$")
payloads = []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 ",
pktline.FlushString,
}
s.testDecoderErrorMatches(c, toPktLines(c, payloads), "^malformed request: invalid command line length: expected at least 83, got 82$")
}
func (s *UpdReqDecodeSuite) TestOneUpdateCommand(c *C) {
hash1 := plumbing.NewHash("1ecf0ef2c2dffb796033e5a02219af86ec6584e5")
hash2 := plumbing.NewHash("2ecf0ef2c2dffb796033e5a02219af86ec6584e5")
name := plumbing.ReferenceName("myref")
expected := NewReferenceUpdateRequest()
expected.Commands = []*Command{
{Name: name, Old: hash1, New: hash2},
}
expected.Packfile = io.NopCloser(bytes.NewReader([]byte{}))
payloads := []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
pktline.FlushString,
}
s.testDecodeOkExpected(c, expected, payloads)
}
func (s *UpdReqDecodeSuite) TestMultipleCommands(c *C) {
hash1 := plumbing.NewHash("1ecf0ef2c2dffb796033e5a02219af86ec6584e5")
hash2 := plumbing.NewHash("2ecf0ef2c2dffb796033e5a02219af86ec6584e5")
expected := NewReferenceUpdateRequest()
expected.Commands = []*Command{
{Name: plumbing.ReferenceName("myref1"), Old: hash1, New: hash2},
{Name: plumbing.ReferenceName("myref2"), Old: plumbing.ZeroHash, New: hash2},
{Name: plumbing.ReferenceName("myref3"), Old: hash1, New: plumbing.ZeroHash},
}
expected.Packfile = io.NopCloser(bytes.NewReader([]byte{}))
payloads := []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref1\x00",
"0000000000000000000000000000000000000000 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref2",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 0000000000000000000000000000000000000000 myref3",
pktline.FlushString,
}
s.testDecodeOkExpected(c, expected, payloads)
}
func (s *UpdReqDecodeSuite) TestMultipleCommandsAndCapabilities(c *C) {
hash1 := plumbing.NewHash("1ecf0ef2c2dffb796033e5a02219af86ec6584e5")
hash2 := plumbing.NewHash("2ecf0ef2c2dffb796033e5a02219af86ec6584e5")
expected := NewReferenceUpdateRequest()
expected.Commands = []*Command{
{Name: plumbing.ReferenceName("myref1"), Old: hash1, New: hash2},
{Name: plumbing.ReferenceName("myref2"), Old: plumbing.ZeroHash, New: hash2},
{Name: plumbing.ReferenceName("myref3"), Old: hash1, New: plumbing.ZeroHash},
}
expected.Capabilities.Add("shallow")
expected.Packfile = io.NopCloser(bytes.NewReader([]byte{}))
payloads := []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref1\x00shallow",
"0000000000000000000000000000000000000000 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref2",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 0000000000000000000000000000000000000000 myref3",
pktline.FlushString,
}
s.testDecodeOkExpected(c, expected, payloads)
}
func (s *UpdReqDecodeSuite) TestMultipleCommandsAndCapabilitiesShallow(c *C) {
hash1 := plumbing.NewHash("1ecf0ef2c2dffb796033e5a02219af86ec6584e5")
hash2 := plumbing.NewHash("2ecf0ef2c2dffb796033e5a02219af86ec6584e5")
expected := NewReferenceUpdateRequest()
expected.Commands = []*Command{
{Name: plumbing.ReferenceName("myref1"), Old: hash1, New: hash2},
{Name: plumbing.ReferenceName("myref2"), Old: plumbing.ZeroHash, New: hash2},
{Name: plumbing.ReferenceName("myref3"), Old: hash1, New: plumbing.ZeroHash},
}
expected.Capabilities.Add("shallow")
expected.Shallow = &hash1
expected.Packfile = io.NopCloser(bytes.NewReader([]byte{}))
payloads := []string{
"shallow 1ecf0ef2c2dffb796033e5a02219af86ec6584e5",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref1\x00shallow",
"0000000000000000000000000000000000000000 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref2",
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 0000000000000000000000000000000000000000 myref3",
pktline.FlushString,
}
s.testDecodeOkExpected(c, expected, payloads)
}
func (s *UpdReqDecodeSuite) TestWithPackfile(c *C) {
hash1 := plumbing.NewHash("1ecf0ef2c2dffb796033e5a02219af86ec6584e5")
hash2 := plumbing.NewHash("2ecf0ef2c2dffb796033e5a02219af86ec6584e5")
name := plumbing.ReferenceName("myref")
expected := NewReferenceUpdateRequest()
expected.Commands = []*Command{
{Name: name, Old: hash1, New: hash2},
}
packfileContent := []byte("PACKabc")
expected.Packfile = io.NopCloser(bytes.NewReader(packfileContent))
payloads := []string{
"1ecf0ef2c2dffb796033e5a02219af86ec6584e5 2ecf0ef2c2dffb796033e5a02219af86ec6584e5 myref\x00",
pktline.FlushString,
}
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
c.Assert(e.EncodeString(payloads...), IsNil)
buf.Write(packfileContent)
s.testDecodeOkRaw(c, expected, buf.Bytes())
}
func (s *UpdReqDecodeSuite) testDecoderErrorMatches(c *C, input io.Reader, pattern string) {
r := NewReferenceUpdateRequest()
c.Assert(r.Decode(input), ErrorMatches, pattern)
}
func (s *UpdReqDecodeSuite) testDecodeOK(c *C, payloads []string) *ReferenceUpdateRequest {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
err := e.EncodeString(payloads...)
c.Assert(err, IsNil)
r := NewReferenceUpdateRequest()
c.Assert(r.Decode(&buf), IsNil)
return r
}
func (s *UpdReqDecodeSuite) testDecodeOkRaw(c *C, expected *ReferenceUpdateRequest, raw []byte) {
req := NewReferenceUpdateRequest()
c.Assert(req.Decode(bytes.NewBuffer(raw)), IsNil)
c.Assert(req.Packfile, NotNil)
s.compareReaders(c, req.Packfile, expected.Packfile)
req.Packfile = nil
expected.Packfile = nil
c.Assert(req, DeepEquals, expected)
}
func (s *UpdReqDecodeSuite) testDecodeOkExpected(c *C, expected *ReferenceUpdateRequest, payloads []string) {
req := s.testDecodeOK(c, payloads)
c.Assert(req.Packfile, NotNil)
s.compareReaders(c, req.Packfile, expected.Packfile)
req.Packfile = nil
expected.Packfile = nil
c.Assert(req, DeepEquals, expected)
}
func (s *UpdReqDecodeSuite) compareReaders(c *C, a io.ReadCloser, b io.ReadCloser) {
pba, err := io.ReadAll(a)
c.Assert(err, IsNil)
c.Assert(a.Close(), IsNil)
pbb, err := io.ReadAll(b)
c.Assert(err, IsNil)
c.Assert(b.Close(), IsNil)
c.Assert(pba, DeepEquals, pbb)
}
