func (r *ZipScannerImpl) Reader() (io.Reader, error) {
switch r.fh.Method {
case zip.Deflate:
if r.Debug {
fmt.Println("inflating...")
}
r.fr = flate.NewReader(r.reader)
case zip.Store:
if r.Debug {
fmt.Println("reading...")
}
if r.fh.UncompressedSize > 0 {
r.fr = io.LimitReader(r.reader, int64(r.fh.UncompressedSize))
} else if r.fh.UncompressedSize == 0 && (r.fh.Flags&hasDataDescriptor) == 0 {
// file of 0 bytes or directory ?
r.fr = io.LimitReader(r.reader, 0)
} else {
return r.readError(NoUncompressedSize)
}
default:
return r.readError(UnsupportedCompression)
}
r.err = nil
return r.fr, r.err
}
func (s *BufferTest) TestMBuf(t *C) {
pool := NewBufferPool(1000*1024*1024, 200*1024*1024)
h := pool.NewPoolHandle()
n := uint64(2 * BUF_SIZE)
mb := MBuf{}.Init(h, n)
t.Assert(len(mb.buffers), Equals, 2)
r := io.LimitReader(&SeqReader{}, int64(n))
for {
nread, err := mb.WriteFrom(r)
t.Assert(err, IsNil)
if nread == 0 {
break
}
}
t.Assert(mb.wbuf, Equals, 1)
t.Assert(mb.wp, Equals, BUF_SIZE)
diff, err := CompareReader(mb, io.LimitReader(&SeqReader{}, int64(n)))
t.Assert(err, IsNil)
t.Assert(diff, Equals, -1)
t.Assert(mb.rbuf, Equals, 1)
t.Assert(mb.rp, Equals, BUF_SIZE)
t.Assert(h.inUseBuffers, Equals, int64(2))
mb.Free()
t.Assert(h.inUseBuffers, Equals, int64(0))
}
func (cOff chunkOffTs) readPreChunk(r io.ReadSeeker) (*preChunk, error) {
pc := preChunk{ts: cOff.ts}
if _, err := r.Seek(cOff.offset, 0); err != nil {
return nil, err
}
lr := io.LimitReader(r, cOff.size)
var length uint32
if err := binary.Read(lr, binary.BigEndian, &length); err != nil {
return nil, err
}
lr = io.LimitReader(lr, int64(length))
compType, err := kagus.ReadByte(lr)
if err != nil {
return nil, err
}
pc.compression = compType
buf := new(bytes.Buffer)
if _, err := io.Copy(buf, lr); err != nil {
return nil, err
}
pc.data = buf.Bytes()
return &pc, err
}
func (s *BufferTest) TestBufferWrite(t *C) {
h := NewBufferPool(1000 * 1024 * 1024)
n := uint64(2 * BUF_SIZE)
mb := MBuf{}.Init(h, n, true)
t.Assert(len(mb.buffers), Equals, 2)
nwritten, err := io.Copy(mb, io.LimitReader(&SeqReader{}, int64(n)))
t.Assert(nwritten, Equals, int64(n))
t.Assert(err, IsNil)
diff, err := CompareReader(mb, io.LimitReader(&SeqReader{}, int64(n)))
t.Assert(err, IsNil)
t.Assert(diff, Equals, -1)
cur, err := mb.Seek(0, 1)
t.Assert(err, IsNil)
t.Assert(cur, Equals, int64(n))
cur, err = mb.Seek(0, 2)
t.Assert(err, IsNil)
t.Assert(cur, Equals, int64(n))
cur, err = mb.Seek(0, 0)
t.Assert(err, IsNil)
t.Assert(cur, Equals, int64(0))
t.Assert(mb.rbuf, Equals, 0)
t.Assert(mb.rp, Equals, 0)
diff, err = CompareReader(mb, io.LimitReader(&SeqReader{}, int64(n)))
t.Assert(err, IsNil)
t.Assert(diff, Equals, -1)
}
// LimitReader returns a Reader that reads from r but stops with EOF after n
// bytes. The underlying implementation is a *io.LimitedReader unless n is
// greater than the maximum value representable as an int64, in which case it
// uses io.MultiReader with a pair of *io.LimitReader.
//
func LimitReader(r io.Reader, n uint64) io.Reader {
if n > uint64(math.MaxInt64) {
return io.MultiReader(io.LimitReader(r, math.MaxInt64), io.LimitReader(r, int64(n-uint64(math.MaxInt64))))
} else {
return io.LimitReader(r, int64(n))
}
}
// archiveFileVisitor is called for each file in an archive. It may set
// tempFile and signature.
func archiveFileVisitor(dir string, tempFile *string, signature *[]byte, archivePath string, filedata io.Reader) error {
var err error
filename := path.Base(archivePath)
archiveDir := path.Dir(archivePath)
l.Debugf("considering file %s", archivePath)
switch filename {
case "syncthing", "syncthing.exe":
archiveDirs := strings.Split(archiveDir, "/")
if len(archiveDirs) > 1 {
// Don't consider "syncthing" files found too deeply, as they may be
// other things.
return nil
}
l.Debugf("found upgrade binary %s", archivePath)
*tempFile, err = writeBinary(dir, io.LimitReader(filedata, maxBinarySize))
if err != nil {
return err
}
case "release.sig":
l.Debugf("found signature %s", archivePath)
*signature, err = ioutil.ReadAll(io.LimitReader(filedata, maxSignatureSize))
if err != nil {
return err
}
}
return nil
}
func (c *CompressionSnappyDecoder) readHeader() (int, error) {
header := make([]byte, 4, 4)
_, err := c.source.Read(header[:3])
if err != nil {
return 0, err
}
headerVal := binary.LittleEndian.Uint32(header)
c.isOriginal = headerVal%2 == 1
c.chunkLength = int(headerVal / 2)
if !c.isOriginal {
// ORC does not use snappy's framing as implemented in the
// github.com/golang/snappy Reader implementation. As a result
// we have to read and decompress the entire chunk.
// TODO: find reader implementation with optional framing.
r := io.LimitReader(c.source, int64(c.chunkLength))
src, err := ioutil.ReadAll(r)
if err != nil {
return 0, err
}
decodedBytes, err := snappy.Decode(nil, src)
if err != nil {
return 0, err
}
c.decoded = bytes.NewReader(decodedBytes)
} else {
c.decoded = io.LimitReader(c.source, int64(c.chunkLength))
}
return 0, nil
}
func (c *Connection) readReply() (*replyMsg, os.Error) {
size_bits, _ := ioutil.ReadAll(io.LimitReader(c.conn, 4))
size := binary.LittleEndian.Uint32(size_bits)
rest, _ := ioutil.ReadAll(io.LimitReader(c.conn, int64(size)-4))
reply := parseReply(rest)
return reply, nil
}
// Extract form fields and file data from a HTTP POST Policy
func extractPostPolicyFormValues(reader *multipart.Reader) (filePart io.Reader, fileName string, formValues map[string]string, err error) {
/// HTML Form values
formValues = make(map[string]string)
fileName = ""
for err == nil {
var part *multipart.Part
part, err = reader.NextPart()
if part != nil {
canonicalFormName := http.CanonicalHeaderKey(part.FormName())
if canonicalFormName != "File" {
var buffer []byte
limitReader := io.LimitReader(part, maxFormFieldSize+1)
buffer, err = ioutil.ReadAll(limitReader)
if err != nil {
return nil, "", nil, err
}
if int64(len(buffer)) > maxFormFieldSize {
return nil, "", nil, errSizeUnexpected
}
formValues[canonicalFormName] = string(buffer)
} else {
filePart = io.LimitReader(part, maxObjectSize)
fileName = part.FileName()
// As described in S3 spec, we expect file to be the last form field
break
}
}
}
return filePart, fileName, formValues, nil
}
/* Gets the message of reply from database. */
func (self *Connection) readReply() (*opReply, os.Error) {
size_bits, _ := ioutil.ReadAll(io.LimitReader(self.conn, 4))
size := pack.Uint32(size_bits)
rest, _ := ioutil.ReadAll(io.LimitReader(self.conn, int64(size)-4))
reply := parseReply(rest)
return reply, nil
}
func TestVolumeCreateBadDispersionValues(t *testing.T) {
tmpfile := tests.Tempfile()
defer os.Remove(tmpfile)
// Create the app
app := NewTestApp(tmpfile)
defer app.Close()
router := mux.NewRouter()
app.SetRoutes(router)
// Setup the server
ts := httptest.NewServer(router)
defer ts.Close()
// VolumeCreate JSON Request
request := []byte(`{
"size" : 100,
"durability": {
"type": "disperse",
"disperse": {
"data" : 8,
"redundancy" : 1
}
}
}`)
// Send request
r, err := http.Post(ts.URL+"/volumes", "application/json", bytes.NewBuffer(request))
tests.Assert(t, err == nil)
tests.Assert(t, r.StatusCode == http.StatusBadRequest)
body, err := ioutil.ReadAll(io.LimitReader(r.Body, r.ContentLength))
tests.Assert(t, err == nil)
r.Body.Close()
tests.Assert(t, strings.Contains(string(body), "Invalid dispersion combination"))
// VolumeCreate JSON Request
request = []byte(`{
"size" : 100,
"durability": {
"type": "disperse",
"disperse": {
"data" : 4,
"redundancy" : 3
}
}
}`)
// Send request
r, err = http.Post(ts.URL+"/volumes", "application/json", bytes.NewBuffer(request))
tests.Assert(t, err == nil)
tests.Assert(t, r.StatusCode == http.StatusBadRequest)
body, err = ioutil.ReadAll(io.LimitReader(r.Body, r.ContentLength))
tests.Assert(t, err == nil)
r.Body.Close()
tests.Assert(t, strings.Contains(string(body), "Invalid dispersion combination"))
}
func (decoder *packetDecoder) Decode(msg interface{}) (err error) {
decoder.buffer.Reset()
if _, err = decoder.buffer.ReadFrom(io.LimitReader(decoder.reader, int64(decoder.n))); err != nil {
return err
}
n := decoder.decodeHead(decoder.buffer.Next(decoder.n))
if _, err = decoder.buffer.ReadFrom(io.LimitReader(decoder.reader, int64(n))); err != nil {
return err
}
return decoder.base.Decode(msg)
}
func main() {
// START OMIT
var r io.Reader = ByteReader('A')
r = io.LimitReader(r, 1e6)
r = LogReader{r}
io.Copy(ioutil.Discard, r)
// STOP OMIT
return
io.Copy(ioutil.Discard, LogReader{io.LimitReader(ByteReader('A'), 1e6)})
}
func TestPrependedBlocks(t *testing.T) {
const BLOCKSIZE = 100
const BLOCK_COUNT = 20
checksum := NewFileChecksumGenerator(BLOCKSIZE)
file1 := io.LimitReader(
readers.NewNonRepeatingSequence(0),
BLOCKSIZE*BLOCK_COUNT,
)
file2 := io.LimitReader(
io.MultiReader(
readers.OneReader(BLOCKSIZE), // Off by one block
readers.NewNonRepeatingSequence(0),
),
BLOCKSIZE*BLOCK_COUNT,
)
output1 := bytes.NewBuffer(nil)
chksum1, _ := checksum.GenerateChecksums(file1, output1)
output2 := bytes.NewBuffer(nil)
chksum2, _ := checksum.GenerateChecksums(file2, output2)
if bytes.Compare(chksum1, chksum2) == 0 {
t.Fatal("Checksums should be different")
}
weaksize, strongSize := checksum.GetChecksumSizes()
sums1, _ := chunks.LoadChecksumsFromReader(output1, weaksize, strongSize)
sums2, _ := chunks.LoadChecksumsFromReader(output2, weaksize, strongSize)
if len(sums1) != len(sums2) {
t.Fatalf("Checksum lengths differ %v vs %v", len(sums1), len(sums2))
}
if sums1[0].Match(sums2[0]) {
t.Error("Chunk sums1[0] should differ from sums2[0]")
}
for i, _ := range sums2 {
if i == 0 {
continue
}
if !sums1[i-1].Match(sums2[i]) {
t.Errorf("Chunk sums1[%v] equal sums2[%v]", i-1, i)
}
}
}
func passThru(w io.Writer, req *http.Request) error {
var body bytes.Buffer
_, err := io.Copy(&body, io.LimitReader(req.Body, maxSnippetSize+1))
req.Body.Close()
if err != nil {
return fmt.Errorf("Error reading body: %q", err)
}
if body.Len() > maxSnippetSize {
return fmt.Errorf("Snippet is too large")
}
snip := &Snippet{Body: body.Bytes()}
id := snip.Id()
key := []byte(id)
var output bytes.Buffer
if err = db.Update(func(tx *bolt.Tx) error {
b := tx.Bucket(bucketCache)
data := b.Get(key)
if data == nil || *flagDisableCache {
client := http.Client{}
r, err := client.Post(*flagCompileURL, req.Header.Get("Content-Type"), &body)
if err != nil {
return err
}
defer r.Body.Close()
data, err = ioutil.ReadAll(io.LimitReader(r.Body, maxSnippetSize+1))
if len(data) > maxSnippetSize {
return fmt.Errorf("Output is too large.")
}
if err = b.Put(key, data); err != nil {
return err
}
}
output.Write(data)
return nil
}); err != nil {
return err
}
if _, err := io.Copy(w, &output); err != nil {
return err
}
return nil
}
func TestCallbacksWork(t *testing.T) {
fake := new(FakeStream)
var sent int64
var recv int64
sentCB := func(n int64, proto protocol.ID, p peer.ID) {
sent += n
}
recvCB := func(n int64, proto protocol.ID, p peer.ID) {
recv += n
}
ms := newMeteredStream(fake, protocol.ID("TEST"), peer.ID("PEER"), recvCB, sentCB)
toWrite := int64(100000)
toRead := int64(100000)
fake.ReadBuf = io.LimitReader(randbo.New(), toRead)
writeData := io.LimitReader(randbo.New(), toWrite)
n, err := io.Copy(ms, writeData)
if err != nil {
t.Fatal(err)
}
if n != toWrite {
t.Fatal("incorrect write amount")
}
if toWrite != sent {
t.Fatal("incorrectly reported writes", toWrite, sent)
}
n, err = io.Copy(ioutil.Discard, ms)
if err != nil {
t.Fatal(err)
}
if n != toRead {
t.Fatal("incorrect read amount")
}
if toRead != recv {
t.Fatal("incorrectly reported reads")
}
}
func AddStudent(w http.ResponseWriter, r *http.Request) {
var student Student
body, err := ioutil.ReadAll(io.LimitReader(r.Body, 1048576))
if err != nil {
panic(err)
}
if err := r.Body.Close(); err != nil {
panic(err)
}
if err := json.Unmarshal(body, &student); err != nil {
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
w.WriteHeader(422) // unprocessable entity
if err := json.NewEncoder(w).Encode(err); err != nil {
panic(err)
}
}
// add to db
//t := RepoCreateTodo(student)
//w.Header().Set("Content-Type", "application/json; charset=UTF-8")
//w.WriteHeader(http.StatusCreated)
//if err := json.NewEncoder(w).Encode(t); err != nil {
// panic(err)
//}
}
// matchesCurrent returns whether or not an existing git hook is able to be
// written to or upgraded. A git hook matches those conditions if and only if
// its contents match the current contents, or any past "upgrade-able" contents
// of this hook.
func (h *Hook) matchesCurrent() (bool, error) {
file, err := os.Open(h.Path())
if err != nil {
return false, err
}
by, err := ioutil.ReadAll(io.LimitReader(file, 1024))
file.Close()
if err != nil {
return false, err
}
contents := strings.TrimSpace(string(by))
if contents == h.Contents || len(contents) == 0 {
return true, nil
}
for _, u := range h.Upgradeables {
if u == contents {
return true, nil
}
}
return false, fmt.Errorf("Hook already exists: %s\n\n%s\n", string(h.Type), contents)
}
// readPayload reads the HTTP response in chunks, making the read buffer available
// to MeekConn.Read() calls after each chunk; the intention is to allow bytes to
// flow back to the reader as soon as possible instead of buffering the entire payload.
func (meek *MeekConn) readPayload(receivedPayload io.ReadCloser) (totalSize int64, err error) {
defer receivedPayload.Close()
totalSize = 0
for {
reader := io.LimitReader(receivedPayload, READ_PAYLOAD_CHUNK_LENGTH)
// Block until there is capacity in the receive buffer
var receiveBuffer *bytes.Buffer
select {
case receiveBuffer = <-meek.emptyReceiveBuffer:
case receiveBuffer = <-meek.partialReceiveBuffer:
case <-meek.broadcastClosed:
return 0, nil
}
// Note: receiveBuffer size may exceed FULL_RECEIVE_BUFFER_LENGTH by up to the size
// of one received payload. The FULL_RECEIVE_BUFFER_LENGTH value is just a threshold.
n, err := receiveBuffer.ReadFrom(reader)
meek.replaceReceiveBuffer(receiveBuffer)
if err != nil {
return 0, ContextError(err)
}
totalSize += n
if n == 0 {
break
}
}
return totalSize, nil
}
func UninstallHooks() error {
if !InRepo() {
return newInvalidRepoError(nil)
}
prePushHookPath := filepath.Join(LocalGitDir, "hooks", "pre-push")
file, err := os.Open(prePushHookPath)
if err != nil {
// hook doesn't exist, our work here is done
return nil
}
by, err := ioutil.ReadAll(io.LimitReader(file, 1024))
file.Close()
if err != nil {
return err
}
contents := strings.TrimSpace(string(by))
if contents == prePushHook || prePushUpgrades[contents] {
return os.RemoveAll(prePushHookPath)
}
return nil
}
func (r *RoomSetResource) Post(request *http.Request) (int, interface{}, http.Header) {
var (
roomObject RoomObject
success bool
)
body, err := ioutil.ReadAll(io.LimitReader(request.Body, READ_BUFFER_SIZE))
if nil != err {
return http.StatusInternalServerError, InternalServerError(err), nil
}
err = request.Body.Close()
if nil != err {
return http.StatusInternalServerError, InternalServerError(err), nil
}
if err := json.Unmarshal(body, &roomObject); nil != err {
return gogoapi.HTTP_UNPROCESSABLE, gogoapi.JSONError{gogoapi.HTTP_UNPROCESSABLE, "Unprocessable entity."}, nil
}
err = r.postStatement.QueryRow(
roomObject.Name,
roomObject.Description,
).Scan(&success, &roomObject.RoomId)
if nil != err {
return http.StatusInternalServerError, InternalServerError(err), nil
}
if !success {
status := http.StatusConflict
return status, gogoapi.JSONError{status, "Resource already exists."}, nil
} else {
return http.StatusCreated, roomObject, nil
}
}
// reads a bulk reply (i.e $5\r\nhello)
func readBulk(reader *bufio.Reader, head string) ([]byte, error) {
var err error
var data []byte
if head == "" {
head, err = reader.ReadString('\n')
if err != nil {
return nil, err
}
}
switch head[0] {
case ':':
data = []byte(strings.TrimSpace(head[1:]))
case '$':
size, err := strconv.Atoi(strings.TrimSpace(head[1:]))
if err != nil {
return nil, err
}
if size == -1 {
return nil, doesNotExist
}
lr := io.LimitReader(reader, int64(size))
data, err = ioutil.ReadAll(lr)
if err == nil {
// read end of line
_, err = reader.ReadString('\n')
}
default:
return nil, RedisError("Expecting Prefix '$' or ':'")
}
return data, err
}
func (self *ProtobufClient) readResponses() {
message := make([]byte, 0, MAX_RESPONSE_SIZE)
buff := bytes.NewBuffer(message)
for !self.stopped {
buff.Reset()
conn := self.getConnection()
if conn == nil {
time.Sleep(200 * time.Millisecond)
continue
}
var messageSizeU uint32
var err error
err = binary.Read(conn, binary.LittleEndian, &messageSizeU)
if err != nil {
log.Error("Error while reading messsage size: %d", err)
time.Sleep(200 * time.Millisecond)
continue
}
messageSize := int64(messageSizeU)
messageReader := io.LimitReader(conn, messageSize)
_, err = io.Copy(buff, messageReader)
if err != nil {
log.Error("Error while reading message: %d", err)
time.Sleep(200 * time.Millisecond)
continue
}
response, err := protocol.DecodeResponse(buff)
if err != nil {
log.Error("error unmarshaling response: %s", err)
time.Sleep(200 * time.Millisecond)
} else {
self.sendResponse(response)
}
}
}
func probe(path string) modem.Modem {
if path != "" {
b, err := ioutil.ReadFile(path)
if err != nil {
glog.Errorf("Failed to read %q: %v", path, err)
return nil
}
if isSB6121(b) {
m, err := NewFakeData(path)
if err != nil {
glog.Errorf("Failed to create fake SB6121: %v", err)
return nil
}
return m
}
return nil
}
rc, err := get()
if err != nil {
glog.Errorf("Failed to get status page: %v", err)
return nil
}
defer rc.Close()
b, err := ioutil.ReadAll(io.LimitReader(rc, 1<<20))
if err != nil {
glog.Errorf("Failed to read status page: %v", err)
return nil
}
if isSB6121(b) {
return New()
}
return nil
}
func TestDecompInlen(t *testing.T) {
data := bytes.Repeat([]byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, 1000)
cmp := Compress1X(data)
for i := 1; i < 16; i++ {
for j := -16; j < 16; j++ {
_, err := Decompress1X(io.LimitReader(bytes.NewReader(cmp), int64(len(cmp)-i)), len(cmp)+j, 0)
if err != io.EOF {
t.Error("EOF expected for truncated input, found:", err)
}
}
}
for j := -16; j < 16; j++ {
data2, err := Decompress1X(bytes.NewReader(cmp), len(cmp)+j, 0)
if j < 0 && err != io.EOF {
t.Error("EOF expected for truncated input, found:", err)
}
if j >= 0 {
if err != nil {
t.Error("error for normal decompression:", err, j)
} else if !reflect.DeepEqual(data, data2) {
t.Error("data doesn't match after decompression")
}
}
}
}
func TestMultiReaderSourceError(t *testing.T) {
t.Parallel()
// This test fails if it doesn't complete quickly.
timer := time.AfterFunc(2*time.Second, func() {
t.Fatalf("Test seems to have hung.")
})
defer timer.Stop()
randomSrc := randomDataMaker{rand.NewSource(1028890720402726901)}
tordr := iotest.TimeoutReader(&randomSrc)
lr := io.LimitReader(tordr, expSize)
r1, _ := newMultiReaderTimeout(lr, 10*time.Millisecond)
b1 := &bytes.Buffer{}
rs := make(chan copyRes, 2)
go bgCopy(b1, r1, rs)
res1 := <-rs
if res1.e != Timeout {
t.Errorf("Expected a timeout, got %v", res1.e)
t.Fail()
}
}
func TestMultiReader(t *testing.T) {
t.Parallel()
randomSrc := randomDataMaker{rand.NewSource(1028890720402726901)}
lr := io.LimitReader(&randomSrc, expSize)
r1, r2 := newMultiReader(lr)
b1 := &bytes.Buffer{}
b2 := &bytes.Buffer{}
rs := make(chan copyRes, 2)
go bgCopy(b1, r1, rs)
go bgCopy(b2, r2, rs)
res1 := <-rs
res2 := <-rs
if res1.e != nil || res2.e != nil {
t.Logf("Error copying data: %v/%v", res1.e, res2.e)
}
if res1.s != res2.s || res1.s != expSize {
t.Fatalf("Read %v/%v bytes, expected %v",
res1.s, res2.s, expSize)
}
if !reflect.DeepEqual(b1, b2) {
t.Fatalf("Didn't read the same data from the two things")
}
}
func ServerCreate(w http.ResponseWriter, r *http.Request) {
if authentication.IsAllowed(w, r) {
var server pulp.Server
body, err := ioutil.ReadAll(io.LimitReader(r.Body, 1048576))
if err != nil {
logger.Log("could not read POST body, Error: "+err.Error(), logger.ERROR)
}
if err := r.Body.Close(); err != nil {
logger.Log("could not close POST body, Error: "+err.Error(), logger.ERROR)
}
if err := json.Unmarshal(body, &server); err != nil {
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
w.WriteHeader(422) // unprocessable entity
if err := json.NewEncoder(w).Encode(err); err != nil {
logger.Log("could not json/encode error, Error: "+err.Error(), logger.ERROR)
}
}
session, collection := db.InitServerCollection()
defer session.Close()
server.Added = time.Now()
err = collection.Insert(server)
if err != nil {
logger.Log("could not insert server to DB, Error: "+err.Error(), logger.ERROR)
}
w.Header().Set("Content-Type", "application/json; charset=UTF=8")
w.WriteHeader(http.StatusCreated)
if err := json.NewEncoder(w).Encode(server); err != nil {
panic(err)
}
}
}
func (x *XdrStream) ReadOne(in interface{}) error {
var nbytes uint32
err := binary.Read(x.rdr, binary.BigEndian, &nbytes)
if err != nil {
x.rdr.Close()
if err == io.ErrUnexpectedEOF {
return io.EOF
} else {
return err
}
}
nbytes &= 0x7fffffff
x.buf.Reset()
if nbytes == 0 {
x.rdr.Close()
return io.EOF
}
x.buf.Grow(int(nbytes))
read, err := x.buf.ReadFrom(io.LimitReader(x.rdr, int64(nbytes)))
if read != int64(nbytes) {
x.rdr.Close()
return errors.New("Read wrong number of bytes from XDR")
}
if err != nil {
x.rdr.Close()
return err
}
readi, err := xdr.Unmarshal(&x.buf, in)
if int64(readi) != int64(nbytes) {
return fmt.Errorf("Unmarshalled %d bytes from XDR, expected %d)",
readi, nbytes)
}
return err
}
// GetSized downloads the named meta file with the given size. A short body
// is acceptable because in the case of timestamp.json, the size is a cap,
// not an exact length.
// If size is "NoSizeLimit", this corresponds to "infinite," but we cut off at a
// predefined threshold "notary.MaxDownloadSize".
func (s HTTPStore) GetSized(name string, size int64) ([]byte, error) {
url, err := s.buildMetaURL(name)
if err != nil {
return nil, err
}
req, err := http.NewRequest("GET", url.String(), nil)
if err != nil {
return nil, err
}
resp, err := s.roundTrip.RoundTrip(req)
if err != nil {
return nil, NetworkError{Wrapped: err}
}
defer resp.Body.Close()
if err := translateStatusToError(resp, name); err != nil {
logrus.Debugf("received HTTP status %d when requesting %s.", resp.StatusCode, name)
return nil, err
}
if size == NoSizeLimit {
size = notary.MaxDownloadSize
}
if resp.ContentLength > size {
return nil, ErrMaliciousServer{}
}
logrus.Debugf("%d when retrieving metadata for %s", resp.StatusCode, name)
b := io.LimitReader(resp.Body, size)
body, err := ioutil.ReadAll(b)
if err != nil {
return nil, err
}
return body, nil
}