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Update xdr; handle marshalling errors

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This commit is contained in:
Jakob Borg 2014-10-21 08:40:05 +02:00
parent ec9d68960f
commit 65eb528e2d
3 changed files with 184 additions and 83 deletions
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256
message_xdr.go
View File

@ -44,20 +44,28 @@ func (o IndexMessage) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o IndexMessage) MarshalXDR() []byte {
func (o IndexMessage) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o IndexMessage) AppendXDR(bs []byte) []byte {
func (o IndexMessage) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o IndexMessage) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o IndexMessage) encodeXDR(xw *xdr.Writer) (int, error) {
if len(o.Folder) > 64 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Folder); l > 64 {
return xw.Tot(), xdr.ElementSizeExceeded("Folder", l, 64)
}
xw.WriteString(o.Folder)
xw.WriteUint32(uint32(len(o.Files)))
@ -142,20 +150,28 @@ func (o FileInfo) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o FileInfo) MarshalXDR() []byte {
func (o FileInfo) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o FileInfo) AppendXDR(bs []byte) []byte {
func (o FileInfo) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o FileInfo) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o FileInfo) encodeXDR(xw *xdr.Writer) (int, error) {
if len(o.Name) > 8192 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Name); l > 8192 {
return xw.Tot(), xdr.ElementSizeExceeded("Name", l, 8192)
}
xw.WriteString(o.Name)
xw.WriteUint32(o.Flags)
@ -244,20 +260,28 @@ func (o FileInfoTruncated) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o FileInfoTruncated) MarshalXDR() []byte {
func (o FileInfoTruncated) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o FileInfoTruncated) AppendXDR(bs []byte) []byte {
func (o FileInfoTruncated) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o FileInfoTruncated) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o FileInfoTruncated) encodeXDR(xw *xdr.Writer) (int, error) {
if len(o.Name) > 8192 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Name); l > 8192 {
return xw.Tot(), xdr.ElementSizeExceeded("Name", l, 8192)
}
xw.WriteString(o.Name)
xw.WriteUint32(o.Flags)
@ -318,21 +342,29 @@ func (o BlockInfo) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o BlockInfo) MarshalXDR() []byte {
func (o BlockInfo) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o BlockInfo) AppendXDR(bs []byte) []byte {
func (o BlockInfo) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o BlockInfo) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o BlockInfo) encodeXDR(xw *xdr.Writer) (int, error) {
xw.WriteUint32(o.Size)
if len(o.Hash) > 64 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Hash); l > 64 {
return xw.Tot(), xdr.ElementSizeExceeded("Hash", l, 64)
}
xw.WriteBytes(o.Hash)
return xw.Tot(), xw.Error()
@ -396,24 +428,32 @@ func (o RequestMessage) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o RequestMessage) MarshalXDR() []byte {
func (o RequestMessage) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o RequestMessage) AppendXDR(bs []byte) []byte {
func (o RequestMessage) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o RequestMessage) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o RequestMessage) encodeXDR(xw *xdr.Writer) (int, error) {
if len(o.Folder) > 64 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Folder); l > 64 {
return xw.Tot(), xdr.ElementSizeExceeded("Folder", l, 64)
}
xw.WriteString(o.Folder)
if len(o.Name) > 8192 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Name); l > 8192 {
return xw.Tot(), xdr.ElementSizeExceeded("Name", l, 8192)
}
xw.WriteString(o.Name)
xw.WriteUint64(o.Offset)
@ -466,15 +506,23 @@ func (o ResponseMessage) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o ResponseMessage) MarshalXDR() []byte {
func (o ResponseMessage) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o ResponseMessage) AppendXDR(bs []byte) []byte {
func (o ResponseMessage) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o ResponseMessage) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o ResponseMessage) encodeXDR(xw *xdr.Writer) (int, error) {
@ -545,28 +593,36 @@ func (o ClusterConfigMessage) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o ClusterConfigMessage) MarshalXDR() []byte {
func (o ClusterConfigMessage) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o ClusterConfigMessage) AppendXDR(bs []byte) []byte {
func (o ClusterConfigMessage) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o ClusterConfigMessage) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o ClusterConfigMessage) encodeXDR(xw *xdr.Writer) (int, error) {
if len(o.ClientName) > 64 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.ClientName); l > 64 {
return xw.Tot(), xdr.ElementSizeExceeded("ClientName", l, 64)
}
xw.WriteString(o.ClientName)
if len(o.ClientVersion) > 64 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.ClientVersion); l > 64 {
return xw.Tot(), xdr.ElementSizeExceeded("ClientVersion", l, 64)
}
xw.WriteString(o.ClientVersion)
if len(o.Folders) > 64 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Folders); l > 64 {
return xw.Tot(), xdr.ElementSizeExceeded("Folders", l, 64)
}
xw.WriteUint32(uint32(len(o.Folders)))
for i := range o.Folders {
@ -575,8 +631,8 @@ func (o ClusterConfigMessage) encodeXDR(xw *xdr.Writer) (int, error) {
return xw.Tot(), err
}
}
if len(o.Options) > 64 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Options); l > 64 {
return xw.Tot(), xdr.ElementSizeExceeded("Options", l, 64)
}
xw.WriteUint32(uint32(len(o.Options)))
for i := range o.Options {
@ -604,7 +660,7 @@ func (o *ClusterConfigMessage) decodeXDR(xr *xdr.Reader) error {
o.ClientVersion = xr.ReadStringMax(64)
_FoldersSize := int(xr.ReadUint32())
if _FoldersSize > 64 {
return xdr.ErrElementSizeExceeded
return xdr.ElementSizeExceeded("Folders", _FoldersSize, 64)
}
o.Folders = make([]Folder, _FoldersSize)
for i := range o.Folders {
@ -612,7 +668,7 @@ func (o *ClusterConfigMessage) decodeXDR(xr *xdr.Reader) error {
}
_OptionsSize := int(xr.ReadUint32())
if _OptionsSize > 64 {
return xdr.ErrElementSizeExceeded
return xdr.ElementSizeExceeded("Options", _OptionsSize, 64)
}
o.Options = make([]Option, _OptionsSize)
for i := range o.Options {
@ -654,20 +710,28 @@ func (o Folder) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o Folder) MarshalXDR() []byte {
func (o Folder) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o Folder) AppendXDR(bs []byte) []byte {
func (o Folder) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o Folder) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o Folder) encodeXDR(xw *xdr.Writer) (int, error) {
if len(o.ID) > 64 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.ID); l > 64 {
return xw.Tot(), xdr.ElementSizeExceeded("ID", l, 64)
}
xw.WriteString(o.ID)
xw.WriteUint32(uint32(len(o.Devices)))
@ -735,20 +799,28 @@ func (o Device) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o Device) MarshalXDR() []byte {
func (o Device) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o Device) AppendXDR(bs []byte) []byte {
func (o Device) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o Device) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o Device) encodeXDR(xw *xdr.Writer) (int, error) {
if len(o.ID) > 32 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.ID); l > 32 {
return xw.Tot(), xdr.ElementSizeExceeded("ID", l, 32)
}
xw.WriteBytes(o.ID)
xw.WriteUint32(o.Flags)
@ -807,24 +879,32 @@ func (o Option) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o Option) MarshalXDR() []byte {
func (o Option) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o Option) AppendXDR(bs []byte) []byte {
func (o Option) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o Option) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o Option) encodeXDR(xw *xdr.Writer) (int, error) {
if len(o.Key) > 64 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Key); l > 64 {
return xw.Tot(), xdr.ElementSizeExceeded("Key", l, 64)
}
xw.WriteString(o.Key)
if len(o.Value) > 1024 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Value); l > 1024 {
return xw.Tot(), xdr.ElementSizeExceeded("Value", l, 1024)
}
xw.WriteString(o.Value)
return xw.Tot(), xw.Error()
@ -873,20 +953,28 @@ func (o CloseMessage) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o CloseMessage) MarshalXDR() []byte {
func (o CloseMessage) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o CloseMessage) AppendXDR(bs []byte) []byte {
func (o CloseMessage) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o CloseMessage) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o CloseMessage) encodeXDR(xw *xdr.Writer) (int, error) {
if len(o.Reason) > 1024 {
return xw.Tot(), xdr.ErrElementSizeExceeded
if l := len(o.Reason); l > 1024 {
return xw.Tot(), xdr.ElementSizeExceeded("Reason", l, 1024)
}
xw.WriteString(o.Reason)
return xw.Tot(), xw.Error()
@ -927,15 +1015,23 @@ func (o EmptyMessage) EncodeXDR(w io.Writer) (int, error) {
return o.encodeXDR(xw)
}
func (o EmptyMessage) MarshalXDR() []byte {
func (o EmptyMessage) MarshalXDR() ([]byte, error) {
return o.AppendXDR(make([]byte, 0, 128))
}
func (o EmptyMessage) AppendXDR(bs []byte) []byte {
func (o EmptyMessage) MustMarshalXDR() []byte {
bs, err := o.MarshalXDR()
if err != nil {
panic(err)
}
return bs
}
func (o EmptyMessage) AppendXDR(bs []byte) ([]byte, error) {
var aw = xdr.AppendWriter(bs)
var xw = xdr.NewWriter(&aw)
o.encodeXDR(xw)
return []byte(aw)
_, err := o.encodeXDR(xw)
return []byte(aw), err
}
func (o EmptyMessage) encodeXDR(xw *xdr.Writer) (int, error) {

8
protocol.go
View File

@ -126,7 +126,7 @@ type hdrMsg struct {
}
type encodable interface {
AppendXDR([]byte) []byte
AppendXDR([]byte) ([]byte, error)
}
const (
@ -483,7 +483,11 @@ func (c *rawConnection) writerLoop() {
case hm := <-c.outbox:
if hm.msg != nil {
// Uncompressed message in uncBuf
uncBuf = hm.msg.AppendXDR(uncBuf[:0])
uncBuf, err = hm.msg.AppendXDR(uncBuf[:0])
if err != nil {
c.close(err)
return
}
if len(uncBuf) >= c.compressionThreshold {
// Use compression for large messages

3
protocol_test.go
View File

@ -25,6 +25,7 @@ import (
"io/ioutil"
"os"
"reflect"
"strings"
"testing"
"testing/quick"
@ -369,7 +370,7 @@ func testMarshal(t *testing.T, prefix string, m1, m2 message) bool {
}
_, err := m1.EncodeXDR(&buf)
if err == xdr.ErrElementSizeExceeded {
if err != nil && strings.Contains(err.Error(), "exceeds size") {
return true
}
if err != nil {