// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package asn1
import (
"bytes"
"encoding/hex"
"math/big"
"reflect"
"strings"
"testing"
"time"
)
type intStruct struct {
A int
}
type twoIntStruct struct {
A int
B int
}
type bigIntStruct struct {
A *big.Int
}
type nestedStruct struct {
A intStruct
}
type rawContentsStruct struct {
Raw RawContent
A int
}
type implicitTagTest struct {
A int `asn1:"implicit,tag:5"`
}
type explicitTagTest struct {
A int `asn1:"explicit,tag:5"`
}
type flagTest struct {
A Flag `asn1:"tag:0,optional"`
}
type generalizedTimeTest struct {
A time.Time `asn1:"generalized"`
}
type ia5StringTest struct {
A string `asn1:"ia5"`
}
type printableStringTest struct {
A string `asn1:"printable"`
}
type genericStringTest struct {
A string
}
type optionalRawValueTest struct {
A RawValue `asn1:"optional"`
}
type omitEmptyTest struct {
A []string `asn1:"omitempty"`
}
type defaultTest struct {
A int `asn1:"optional,default:1"`
}
type applicationTest struct {
A int `asn1:"application,tag:0"`
B int `asn1:"application,tag:1,explicit"`
}
type privateTest struct {
A int `asn1:"private,tag:0"`
B int `asn1:"private,tag:1,explicit"`
C int `asn1:"private,tag:31"` // tag size should be 2 octet
D int `asn1:"private,tag:128"` // tag size should be 3 octet
}
type numericStringTest struct {
A string `asn1:"numeric"`
}
type testSET []int
var PST = time.FixedZone("PST", -8*60*60)
type marshalTest struct {
in interface{}
out string // hex encoded
}
func farFuture() time.Time {
t, err := time.Parse(time.RFC3339, "2100-04-05T12:01:01Z")
if err != nil {
panic(err)
}
return t
}
var marshalTests = []marshalTest{
{10, "02010a"},
{127, "02017f"},
{128, "02020080"},
{-128, "020180"},
{-129, "0202ff7f"},
{intStruct{64}, "3003020140"},
{bigIntStruct{big.NewInt(0x123456)}, "30050203123456"},
{twoIntStruct{64, 65}, "3006020140020141"},
{nestedStruct{intStruct{127}}, "3005300302017f"},
{[]byte{1, 2, 3}, "0403010203"},
{implicitTagTest{64}, "3003850140"},
{explicitTagTest{64}, "3005a503020140"},
{flagTest{true}, "30028000"},
{flagTest{false}, "3000"},
{time.Unix(0, 0).UTC(), "170d3730303130313030303030305a"},
{time.Unix(1258325776, 0).UTC(), "170d3039313131353232353631365a"},
{time.Unix(1258325776, 0).In(PST), "17113039313131353134353631362d30383030"},
{farFuture(), "180f32313030303430353132303130315a"},
{generalizedTimeTest{time.Unix(1258325776, 0).UTC()}, "3011180f32303039313131353232353631365a"},
{BitString{[]byte{0x80}, 1}, "03020780"},
{BitString{[]byte{0x81, 0xf0}, 12}, "03030481f0"},
{ObjectIdentifier([]int{1, 2, 3, 4}), "06032a0304"},
{ObjectIdentifier([]int{1, 2, 840, 133549, 1, 1, 5}), "06092a864888932d010105"},
{ObjectIdentifier([]int{2, 100, 3}), "0603813403"},
{"test", "130474657374"},
{
"" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", // This is 127 times 'x'
"137f" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"78787878787878787878787878787878787878787878787878787878787878",
},
{
"" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", // This is 128 times 'x'
"138180" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"7878787878787878787878787878787878787878787878787878787878787878",
},
{ia5StringTest{"test"}, "3006160474657374"},
{optionalRawValueTest{}, "3000"},
{printableStringTest{"test"}, "3006130474657374"},
{printableStringTest{"test*"}, "30071305746573742a"},
{genericStringTest{"test"}, "3006130474657374"},
{genericStringTest{"test*"}, "30070c05746573742a"},
{genericStringTest{"test&"}, "30070c057465737426"},
{rawContentsStruct{nil, 64}, "3003020140"},
{rawContentsStruct{[]byte{0x30, 3, 1, 2, 3}, 64}, "3003010203"},
{RawValue{Tag: 1, Class: 2, IsCompound: false, Bytes: []byte{1, 2, 3}}, "8103010203"},
{testSET([]int{10}), "310302010a"},
{omitEmptyTest{[]string{}}, "3000"},
{omitEmptyTest{[]string{"1"}}, "30053003130131"},
{"Σ", "0c02cea3"},
{defaultTest{0}, "3003020100"},
{defaultTest{1}, "3000"},
{defaultTest{2}, "3003020102"},
{applicationTest{1, 2}, "30084001016103020102"},
{privateTest{1, 2, 3, 4}, "3011c00101e103020102df1f0103df81000104"},
{numericStringTest{"1 9"}, "30051203312039"},
}
func TestMarshal(t *testing.T) {
for i, test := range marshalTests {
data, err := Marshal(test.in)
if err != nil {
t.Errorf("#%d failed: %s", i, err)
}
out, _ := hex.DecodeString(test.out)
if !bytes.Equal(out, data) {
t.Errorf("#%d got: %x want %x\n\t%q\n\t%q", i, data, out, data, out)
}
}
}
type marshalWithParamsTest struct {
in interface{}
params string
out string // hex encoded
}
var marshalWithParamsTests = []marshalWithParamsTest{
{intStruct{10}, "set", "310302010a"},
{intStruct{10}, "application", "600302010a"},
{intStruct{10}, "private", "e00302010a"},
}
func TestMarshalWithParams(t *testing.T) {
for i, test := range marshalWithParamsTests {
data, err := MarshalWithParams(test.in, test.params)
if err != nil {
t.Errorf("#%d failed: %s", i, err)
}
out, _ := hex.DecodeString(test.out)
if !bytes.Equal(out, data) {
t.Errorf("#%d got: %x want %x\n\t%q\n\t%q", i, data, out, data, out)
}
}
}
type marshalErrTest struct {
in interface{}
err string
}
var marshalErrTests = []marshalErrTest{
{bigIntStruct{nil}, "empty integer"},
{numericStringTest{"a"}, "invalid character"},
{ia5StringTest{"\xb0"}, "invalid character"},
{printableStringTest{"!"}, "invalid character"},
}
func TestMarshalError(t *testing.T) {
for i, test := range marshalErrTests {
_, err := Marshal(test.in)
if err == nil {
t.Errorf("#%d should fail, but success", i)
continue
}
if !strings.Contains(err.Error(), test.err) {
t.Errorf("#%d got: %v want %v", i, err, test.err)
}
}
}
func TestInvalidUTF8(t *testing.T) {
_, err := Marshal(string([]byte{0xff, 0xff}))
if err == nil {
t.Errorf("invalid UTF8 string was accepted")
}
}
func TestMarshalOID(t *testing.T) {
var marshalTestsOID = []marshalTest{
{[]byte("\x06\x01\x30"), "0403060130"}, // bytes format returns a byte sequence \x04
// {ObjectIdentifier([]int{0}), "060100"}, // returns an error as OID 0.0 has the same encoding
{[]byte("\x06\x010"), "0403060130"}, // same as above "\x06\x010" = "\x06\x01" + "0"
{ObjectIdentifier([]int{2, 999, 3}), "0603883703"}, // Example of ITU-T X.690
{ObjectIdentifier([]int{0, 0}), "060100"}, // zero OID
}
for i, test := range marshalTestsOID {
data, err := Marshal(test.in)
if err != nil {
t.Errorf("#%d failed: %s", i, err)
}
out, _ := hex.DecodeString(test.out)
if !bytes.Equal(out, data) {
t.Errorf("#%d got: %x want %x\n\t%q\n\t%q", i, data, out, data, out)
}
}
}
func TestIssue11130(t *testing.T) {
data := []byte("\x06\x010") // == \x06\x01\x30 == OID = 0 (the figure)
var v interface{}
// v has Zero value here and Elem() would panic
_, err := Unmarshal(data, &v)
if err != nil {
t.Errorf("%v", err)
return
}
if reflect.TypeOf(v).String() != reflect.TypeOf(ObjectIdentifier{}).String() {
t.Errorf("marshal OID returned an invalid type")
return
}
data1, err := Marshal(v)
if err != nil {
t.Errorf("%v", err)
return
}
if !bytes.Equal(data, data1) {
t.Errorf("got: %q, want: %q \n", data1, data)
return
}
var v1 interface{}
_, err = Unmarshal(data1, &v1)
if err != nil {
t.Errorf("%v", err)
return
}
if !reflect.DeepEqual(v, v1) {
t.Errorf("got: %#v data=%q , want : %#v data=%q\n ", v1, data1, v, data)
}
}
func BenchmarkMarshal(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
for _, test := range marshalTests {
Marshal(test.in)
}
}
}