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package protocol
import (
"bytes"
"reflect"
"strings"
"testing"
)
func TestUDPMessage(t *testing.T) {
t.Run("buffer too small", func(t *testing.T) {
// Make sure Serialize returns -1 when the buffer is too small.
tBuf := make([]byte, 20)
if (&UDPMessage{
SessionID: 66,
PacketID: 77,
FragID: 2,
FragCount: 5,
Addr: "random_addr",
Data: []byte("random_data"),
}).Serialize(tBuf) != -1 {
t.Error("Serialize() did not return -1 when the buffer was too small")
}
})
type fields struct {
SessionID uint32
PacketID uint16
FragID uint8
FragCount uint8
Addr string
Data []byte
}
tests := []struct {
name string
fields fields
want []byte
}{
{
name: "test 1",
fields: fields{
SessionID: 1,
PacketID: 1,
FragID: 0,
FragCount: 1,
Addr: "example.com:80",
Data: []byte("GET /nothing HTTP/1.1\r\n"),
},
want: []byte{0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0xe, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x3a, 0x38, 0x30, 0x47, 0x45, 0x54, 0x20, 0x2f, 0x6e, 0x6f, 0x74, 0x68, 0x69, 0x6e, 0x67, 0x20, 0x48, 0x54, 0x54, 0x50, 0x2f, 0x31, 0x2e, 0x31, 0xd, 0xa},
},
{
name: "test 2",
fields: fields{
SessionID: 1329655244,
Addr: "some_random_goofy_ahh_address_which_is_very_long_some_random_goofy_ahh_address_which_is_very_long_some_random_goofy_ahh_address_which_is_very_long_some_random_goofy_ahh_address_which_is_very_long_some_random_goofy_ahh_address_which_is_very_long_some_random_goofy_ahh_address_which_is_very_long_some_random_goofy_ahh_address_which_is_very_long_some_random_goofy_ahh_address_which_is_very_long_some_random_goofy_ahh_address_which_is_very_long_some_random_goofy_ahh_address_which_is_very_long:9000",
PacketID: 62233,
FragID: 8,
FragCount: 19,
Data: []byte("God is great, beer is good, and people are crazy."),
},
want: []byte{0x4f, 0x40, 0xed, 0xcc, 0xf3, 0x19, 0x8, 0x13, 0x41, 0xee, 0x73, 0x6f, 0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x5f, 0x67, 0x6f, 0x6f, 0x66, 0x79, 0x5f, 0x61, 0x68, 0x68, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x77, 0x68, 0x69, 0x63, 0x68, 0x5f, 0x69, 0x73, 0x5f, 0x76, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x73, 0x6f, 0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x5f, 0x67, 0x6f, 0x6f, 0x66, 0x79, 0x5f, 0x61, 0x68, 0x68, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x77, 0x68, 0x69, 0x63, 0x68, 0x5f, 0x69, 0x73, 0x5f, 0x76, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x73, 0x6f, 0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x5f, 0x67, 0x6f, 0x6f, 0x66, 0x79, 0x5f, 0x61, 0x68, 0x68, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x77, 0x68, 0x69, 0x63, 0x68, 0x5f, 0x69, 0x73, 0x5f, 0x76, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x73, 0x6f, 0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x5f, 0x67, 0x6f, 0x6f, 0x66, 0x79, 0x5f, 0x61, 0x68, 0x68, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x77, 0x68, 0x69, 0x63, 0x68, 0x5f, 0x69, 0x73, 0x5f, 0x76, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x73, 0x6f, 0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x5f, 0x67, 0x6f, 0x6f, 0x66, 0x79, 0x5f, 0x61, 0x68, 0x68, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x77, 0x68, 0x69, 0x63, 0x68, 0x5f, 0x69, 0x73, 0x5f, 0x76, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x73, 0x6f, 0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x5f, 0x67, 0x6f, 0x6f, 0x66, 0x79, 0x5f, 0x61, 0x68, 0x68, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x77, 0x68, 0x69, 0x63, 0x68, 0x5f, 0x69, 0x73, 0x5f, 0x76, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x73, 0x6f, 0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x5f, 0x67, 0x6f, 0x6f, 0x66, 0x79, 0x5f, 0x61, 0x68, 0x68, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x77, 0x68, 0x69, 0x63, 0x68, 0x5f, 0x69, 0x73, 0x5f, 0x76, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x73, 0x6f, 0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x5f, 0x67, 0x6f, 0x6f, 0x66, 0x79, 0x5f, 0x61, 0x68, 0x68, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x77, 0x68, 0x69, 0x63, 0x68, 0x5f, 0x69, 0x73, 0x5f, 0x76, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x73, 0x6f, 0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x5f, 0x67, 0x6f, 0x6f, 0x66, 0x79, 0x5f, 0x61, 0x68, 0x68, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x77, 0x68, 0x69, 0x63, 0x68, 0x5f, 0x69, 0x73, 0x5f, 0x76, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x73, 0x6f, 0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x5f, 0x67, 0x6f, 0x6f, 0x66, 0x79, 0x5f, 0x61, 0x68, 0x68, 0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x77, 0x68, 0x69, 0x63, 0x68, 0x5f, 0x69, 0x73, 0x5f, 0x76, 0x65, 0x72, 0x79, 0x5f, 0x6c, 0x6f, 0x6e, 0x67, 0x3a, 0x39, 0x30, 0x30, 0x30, 0x47, 0x6f, 0x64, 0x20, 0x69, 0x73, 0x20, 0x67, 0x72, 0x65, 0x61, 0x74, 0x2c, 0x20, 0x62, 0x65, 0x65, 0x72, 0x20, 0x69, 0x73, 0x20, 0x67, 0x6f, 0x6f, 0x64, 0x2c, 0x20, 0x61, 0x6e, 0x64, 0x20, 0x70, 0x65, 0x6f, 0x70, 0x6c, 0x65, 0x20, 0x61, 0x72, 0x65, 0x20, 0x63, 0x72, 0x61, 0x7a, 0x79, 0x2e},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
m := &UDPMessage{
SessionID: tt.fields.SessionID,
Addr: tt.fields.Addr,
PacketID: tt.fields.PacketID,
FragID: tt.fields.FragID,
FragCount: tt.fields.FragCount,
Data: tt.fields.Data,
}
// Serialize
buf := make([]byte, MaxUDPSize)
n := m.Serialize(buf)
if got := buf[:n]; !reflect.DeepEqual(got, tt.want) {
t.Errorf("Serialize() = %v, want %v", got, tt.want)
}
// Parse back
if m2, err := ParseUDPMessage(tt.want); err != nil {
t.Errorf("ParseUDPMessage() error = %v", err)
} else {
if !reflect.DeepEqual(m2, m) {
t.Errorf("ParseUDPMessage() = %v, want %v", m2, m)
}
}
})
}
}
// TestUDPMessageMalformed is to make sure ParseUDPMessage() fails (but not panic) on malformed data.
func TestUDPMessageMalformed(t *testing.T) {
tests := []struct {
name string
data []byte
}{
{
name: "empty",
data: []byte{},
},
{
name: "zeroes 1",
data: []byte{0, 0, 0, 0},
},
{
name: "zeroes 2",
data: []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
},
{
name: "incomplete 1",
data: []byte{0x66, 0xCC, 0xFF, 0xFF, 0x11, 0x22, 0x33, 0x44, 0x55},
},
{
name: "incomplete 2",
data: []byte{0x66, 0xCC, 0xFF, 0xFF, 0x11, 0x22, 0x33, 0x44, 0x90, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if _, err := ParseUDPMessage(tt.data); err == nil {
t.Errorf("ParseUDPMessage() should fail")
}
})
}
}
func TestReadTCPRequest(t *testing.T) {
tests := []struct {
name string
data []byte
want string
wantErr bool
}{
{
name: "normal no padding",
data: []byte("\x0egoogle.com:443\x00"),
want: "google.com:443",
wantErr: false,
},
{
name: "normal with padding",
data: []byte("\x0bholy.cc:443\x02gg"),
want: "holy.cc:443",
wantErr: false,
},
{
name: "incomplete 1",
data: []byte("\x0bhoho"),
want: "",
wantErr: true,
},
{
name: "incomplete 2",
data: []byte("\x0bholy.cc:443\x05x"),
want: "",
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
r := bytes.NewReader(tt.data)
got, err := ReadTCPRequest(r)
if (err != nil) != tt.wantErr {
t.Errorf("ReadTCPRequest() error = %v, wantErr %v", err, tt.wantErr)
return
}
if got != tt.want {
t.Errorf("ReadTCPRequest() got = %v, want %v", got, tt.want)
}
})
}
}
func TestWriteTCPRequest(t *testing.T) {
tests := []struct {
name string
addr string
wantW string // Just a prefix, we don't care about the padding
wantErr bool
}{
{
name: "normal 1",
addr: "google.com:443",
wantW: "\x44\x01\x0egoogle.com:443",
wantErr: false,
},
{
name: "normal 2",
addr: "client-api.arkoselabs.com:8080",
wantW: "\x44\x01\x1eclient-api.arkoselabs.com:8080",
wantErr: false,
},
{
name: "empty",
addr: "",
wantW: "\x44\x01\x00",
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
w := &bytes.Buffer{}
err := WriteTCPRequest(w, tt.addr)
if (err != nil) != tt.wantErr {
t.Errorf("WriteTCPRequest() error = %v, wantErr %v", err, tt.wantErr)
return
}
if gotW := w.String(); !(strings.HasPrefix(gotW, tt.wantW) && len(gotW) > len(tt.wantW)) {
t.Errorf("WriteTCPRequest() gotW = %v, want %v", gotW, tt.wantW)
}
})
}
}
func TestReadTCPResponse(t *testing.T) {
tests := []struct {
name string
data []byte
want bool
want1 string
wantErr bool
}{
{
name: "normal ok no padding",
data: []byte("\x00\x0bhello world\x00"),
want: true,
want1: "hello world",
wantErr: false,
},
{
name: "normal error with padding",
data: []byte("\x01\x06stop!!\x05xxxxx"),
want1: "stop!!",
wantErr: false,
},
{
name: "normal ok no message with padding",
data: []byte("\x01\x00\x05xxxxx"),
want1: "",
wantErr: false,
},
{
name: "incomplete 1",
data: []byte("\x00\x0bhoho"),
want1: "",
wantErr: true,
},
{
name: "incomplete 2",
data: []byte("\x01\x05jesus\x05x"),
want1: "",
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
r := bytes.NewReader(tt.data)
got, got1, err := ReadTCPResponse(r)
if (err != nil) != tt.wantErr {
t.Errorf("ReadTCPResponse() error = %v, wantErr %v", err, tt.wantErr)
return
}
if got != tt.want {
t.Errorf("ReadTCPResponse() got = %v, want %v", got, tt.want)
}
if got1 != tt.want1 {
t.Errorf("ReadTCPResponse() got1 = %v, want %v", got1, tt.want1)
}
})
}
}
func TestWriteTCPResponse(t *testing.T) {
type args struct {
ok bool
msg string
}
tests := []struct {
name string
args args
wantW string // Just a prefix, we don't care about the padding
wantErr bool
}{
{
name: "normal ok",
args: args{ok: true, msg: "hello world"},
wantW: "\x00\x0bhello world",
wantErr: false,
},
{
name: "normal error",
args: args{ok: false, msg: "stop!!"},
wantW: "\x01\x06stop!!",
wantErr: false,
},
{
name: "empty",
args: args{ok: true, msg: ""},
wantW: "\x00\x00",
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
w := &bytes.Buffer{}
err := WriteTCPResponse(w, tt.args.ok, tt.args.msg)
if (err != nil) != tt.wantErr {
t.Errorf("WriteTCPResponse() error = %v, wantErr %v", err, tt.wantErr)
return
}
if gotW := w.String(); !(strings.HasPrefix(gotW, tt.wantW) && len(gotW) > len(tt.wantW)) {
t.Errorf("WriteTCPResponse() gotW = %v, want %v", gotW, tt.wantW)
}
})
}
}
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