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// Copyright (C) 2016 The Protocol Authors.
package protocol
import (
"bytes"
"encoding/binary"
"encoding/hex"
"io"
"regexp"
"testing"
)
var spaceRe = regexp.MustCompile(`\s`)
func TestVersion14Hello(t *testing.T) {
// Tests that we can send and receive a version 0.14 hello message.
expected := Hello{
DeviceName: "test device",
ClientName: "syncthing",
ClientVersion: "v0.14.5",
}
msgBuf, err := expected.Marshal()
if err != nil {
t.Fatal(err)
}
hdrBuf := make([]byte, 6)
binary.BigEndian.PutUint32(hdrBuf, HelloMessageMagic)
binary.BigEndian.PutUint16(hdrBuf[4:], uint16(len(msgBuf)))
outBuf := new(bytes.Buffer)
outBuf.Write(hdrBuf)
outBuf.Write(msgBuf)
inBuf := new(bytes.Buffer)
conn := &readWriter{outBuf, inBuf}
send := &Hello{
DeviceName: "this device",
ClientName: "other client",
ClientVersion: "v0.14.6",
}
res, err := ExchangeHello(conn, send)
if err != nil {
t.Fatal(err)
}
if res.ClientName != expected.ClientName {
t.Errorf("incorrect ClientName %q != expected %q", res.ClientName, expected.ClientName)
}
if res.ClientVersion != expected.ClientVersion {
t.Errorf("incorrect ClientVersion %q != expected %q", res.ClientVersion, expected.ClientVersion)
}
if res.DeviceName != expected.DeviceName {
t.Errorf("incorrect DeviceName %q != expected %q", res.DeviceName, expected.DeviceName)
}
}
func TestVersion13Hello(t *testing.T) {
// Tests that we can send and receive a version 0.13 hello message.
expected := Version13HelloMessage{
DeviceName: "test device",
ClientName: "syncthing",
ClientVersion: "v0.13.5",
}
msgBuf := expected.MustMarshalXDR()
hdrBuf := make([]byte, 8)
binary.BigEndian.PutUint32(hdrBuf, Version13HelloMagic)
binary.BigEndian.PutUint32(hdrBuf[4:], uint32(len(msgBuf)))
outBuf := new(bytes.Buffer)
outBuf.Write(hdrBuf)
outBuf.Write(msgBuf)
inBuf := new(bytes.Buffer)
conn := &readWriter{outBuf, inBuf}
send := Version13HelloMessage{
DeviceName: "this device",
ClientName: "other client",
ClientVersion: "v0.13.6",
}
res, err := ExchangeHello(conn, send)
if err != ErrTooOldVersion13 {
t.Errorf("unexpected error %v != ErrTooOldVersion13", err)
}
if res.ClientName != expected.ClientName {
t.Errorf("incorrect ClientName %q != expected %q", res.ClientName, expected.ClientName)
}
if res.ClientVersion != expected.ClientVersion {
t.Errorf("incorrect ClientVersion %q != expected %q", res.ClientVersion, expected.ClientVersion)
}
if res.DeviceName != expected.DeviceName {
t.Errorf("incorrect DeviceName %q != expected %q", res.DeviceName, expected.DeviceName)
}
}
func TestVersion12Hello(t *testing.T) {
// Tests that we can correctly interpret the lack of a hello message
// from a v0.12 client.
// This is the typical v0.12 connection start - our message header for a
// ClusterConfig message and then the cluster config message data. Taken
// from a protocol dump of a recent v0.12 client.
msg, _ := hex.DecodeString(spaceRe.ReplaceAllString(`
00010001
0000014a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`, ``))
outBuf := new(bytes.Buffer)
outBuf.Write(msg)
inBuf := new(bytes.Buffer)
conn := &readWriter{outBuf, inBuf}
send := Version13HelloMessage{
DeviceName: "this device",
ClientName: "other client",
ClientVersion: "v0.13.6",
}
_, err := ExchangeHello(conn, send)
if err != ErrTooOldVersion12 {
t.Errorf("unexpected error %v != ErrTooOldVersion12", err)
}
}
func TestUnknownHello(t *testing.T) {
// Tests that we react correctly to a completely unknown magic number.
// This is an unknown magic follow byte some message data.
msg, _ := hex.DecodeString(spaceRe.ReplaceAllString(`
12345678
0000014a
7802000070000000027332000100a00973796e637468696e670e00b000000876
302e31322e32352400b00000000764656661756c741e00f01603000000204794
03ffdef496b5f5e5bc9c0a15221e70073164509fa30761af63094f6f945c3800
2073312f00f20b0001000000157463703a2f2f3132372e302e302e313a323230
301f00012400080500003000001000f1122064516fb94d24e7b637d20d9846eb
aeffb09556ef3968c8276fefc3fe24c144c2640002c0000034000f640002021f
00004f00090400003000001100f11220dff67945f05bdab4270acd6057f1eacf
a3ac93cade07ce6a89384c181ad6b80e640010332b000fc80007021f00012400
080500046400041400f21f2dc2af5c5f28e38384295f2fc2af2052c3a46b736d
c3b67267c3a57320e58aa8e4bd9c20d090d0b4d180d0b5d18136001f026c01b8
90000000000000000000`, ``))
outBuf := new(bytes.Buffer)
outBuf.Write(msg)
inBuf := new(bytes.Buffer)
conn := &readWriter{outBuf, inBuf}
send := Version13HelloMessage{
DeviceName: "this device",
ClientName: "other client",
ClientVersion: "v0.13.6",
}
_, err := ExchangeHello(conn, send)
if err != ErrUnknownMagic {
t.Errorf("unexpected error %v != ErrUnknownMagic", err)
}
}
type readWriter struct {
r io.Reader
w io.Writer
}
func (rw *readWriter) Write(data []byte) (int, error) {
return rw.w.Write(data)
}
func (rw *readWriter) Read(data []byte) (int, error) {
return rw.r.Read(data)
}
|
