func (s *SuiteScanner) TestScanAndPayload(c *C) {
for _, test := range [...]string{
"a",
"a\n",
strings.Repeat("a", 100),
strings.Repeat("a", 100) + "\n",
strings.Repeat("\x00", 100),
strings.Repeat("\x00", 100) + "\n",
strings.Repeat("a", pktline.MaxPayloadSize),
strings.Repeat("a", pktline.MaxPayloadSize-1) + "\n",
} {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
err := e.EncodeString(test)
c.Assert(err, IsNil,
Commentf("input len=%x, contents=%.10q\n", len(test), test))
sc := pktline.NewScanner(&buf)
c.Assert(sc.Scan(), Equals, true,
Commentf("test = %.20q...", test))
obtained := sc.Bytes()
c.Assert(obtained, DeepEquals, []byte(test),
Commentf("in = %.20q out = %.20q", test, string(obtained)))
}
}
// returns a byte slice with the pkt-lines for the given payloads.
func pktlines(c *C, payloads ...[]byte) []byte {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
err := e.Encode(payloads...)
c.Assert(err, IsNil, Commentf("building pktlines for %v\n", payloads))
return buf.Bytes()
}
func toPktLines(c *C, payloads []string) io.Reader {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
err := e.EncodeString(payloads...)
c.Assert(err, IsNil)
return &buf
}
func (s *SuiteScanner) TestEOF(c *C) {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
err := e.EncodeString("first", "second")
c.Assert(err, IsNil)
sc := pktline.NewScanner(&buf)
for sc.Scan() {
}
c.Assert(sc.Err(), IsNil)
}
func (s *SuiteScanner) TestFlush(c *C) {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
err := e.Flush()
c.Assert(err, IsNil)
sc := pktline.NewScanner(&buf)
c.Assert(sc.Scan(), Equals, true)
payload := sc.Bytes()
c.Assert(len(payload), Equals, 0)
}
func (s *SuiteDecodeEncode) test(c *C, in []string, exp []string) {
var err error
var input io.Reader
{
var buf bytes.Buffer
p := pktline.NewEncoder(&buf)
err = p.EncodeString(in...)
c.Assert(err, IsNil)
input = &buf
}
var expected []byte
{
var buf bytes.Buffer
p := pktline.NewEncoder(&buf)
err = p.EncodeString(exp...)
c.Assert(err, IsNil)
expected = buf.Bytes()
}
var obtained []byte
{
ar := advrefs.New()
d := advrefs.NewDecoder(input)
err = d.Decode(ar)
c.Assert(err, IsNil)
var buf bytes.Buffer
e := advrefs.NewEncoder(&buf)
err := e.Encode(ar)
c.Assert(err, IsNil)
obtained = buf.Bytes()
}
c.Assert(obtained, DeepEquals, expected,
Commentf("input = %v\nobtained = %q\nexpected = %q\n",
in, string(obtained), string(expected)))
}
func testDecodeOK(c *C, payloads []string) *advrefs.AdvRefs {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
err := e.EncodeString(payloads...)
c.Assert(err, IsNil)
ar := advrefs.New()
d := advrefs.NewDecoder(&buf)
err = d.Decode(ar)
c.Assert(err, IsNil)
return ar
}
// returns nSection sections, each of them with nLines pkt-lines (not
// counting the flush-pkt:
//
// 0009 0.0\n
// 0009 0.1\n
// ...
// 0000
// and so on
func sectionsExample(c *C, nSections, nLines int) io.Reader {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
for section := 0; section < nSections; section++ {
ss := []string{}
for line := 0; line < nLines; line++ {
line := fmt.Sprintf(" %d.%d\n", section, line)
ss = append(ss, line)
}
err := e.EncodeString(ss...)
c.Assert(err, IsNil)
err = e.Flush()
c.Assert(err, IsNil)
}
return &buf
}
func (s *SuiteScanner) TestSkip(c *C) {
for _, test := range [...]struct {
input []string
n int
expected []byte
}{
{
input: []string{
"first",
"second",
"third"},
n: 1,
expected: []byte("second"),
},
{
input: []string{
"first",
"second",
"third"},
n: 2,
expected: []byte("third"),
},
} {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
err := e.EncodeString(test.input...)
c.Assert(err, IsNil)
sc := pktline.NewScanner(&buf)
for i := 0; i < test.n; i++ {
c.Assert(sc.Scan(), Equals, true,
Commentf("scan error = %s", sc.Err()))
}
c.Assert(sc.Scan(), Equals, true,
Commentf("scan error = %s", sc.Err()))
obtained := sc.Bytes()
c.Assert(obtained, DeepEquals, test.expected,
Commentf("\nin = %.20q\nout = %.20q\nexp = %.20q",
test.input, obtained, test.expected))
}
}
func (r *GitUploadPackRequest) Reader() *strings.Reader {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
for _, want := range r.Wants {
_ = e.Encodef("want %s\n", want)
}
for _, have := range r.Haves {
_ = e.Encodef("have %s\n", have)
}
if r.Depth != 0 {
_ = e.Encodef("deepen %d\n", r.Depth)
}
_ = e.Flush()
_ = e.EncodeString("done\n")
return strings.NewReader(buf.String())
}
func (s *Server) doUploadPackResponse(w http.ResponseWriter, r *http.Request) {
pkg := s.buildPackage(r)
fetcher := NewFetcher(pkg, getAuth(r))
ref, err := s.getVersion(fetcher, pkg)
if err != nil {
s.handleError(w, r, err)
return
}
w.Header().Set("Content-Type", "application/x-git-upload-pack-result")
pkt := pktline.NewEncoder(w)
if err := pkt.EncodeString("NAK\n"); err != nil {
s.handleError(w, r, err)
return
}
_, err = fetcher.Fetch(w, ref)
if err != nil {
s.handleError(w, r, err)
return
}
}
func (i *GitUploadPackInfo) Bytes() []byte {
var buf bytes.Buffer
e := pktline.NewEncoder(&buf)
_ = e.EncodeString("# service=git-upload-pack\n")
// inserting a flush-pkt here violates the protocol spec, but some
// servers do it, like Github.com
e.Flush()
_ = e.Encodef("%s HEAD\x00%s\n", i.Head().Hash(), i.Capabilities.String())
for _, ref := range i.Refs {
if ref.Type() != plumbing.HashReference {
continue
}
_ = e.Encodef("%s %s\n", ref.Hash(), ref.Name())
}
e.Flush()
return buf.Bytes()
}
// NewEncoder returns a new encoder that writes to w.
func NewEncoder(w io.Writer) *Encoder {
return &Encoder{
pe: pktline.NewEncoder(w),
}
}