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package fernet
import (
"crypto/aes"
"crypto/rand"
"encoding/base64"
"encoding/json"
"io"
"os"
"testing"
"time"
)
type test struct {
Secret string
Src string
IV [aes.BlockSize]byte
Now time.Time
TTLSec int `json:"ttl_sec"`
Token string
Desc string
}
func mustLoadTests(path string) []test {
var ts []test
if f, err := os.Open(path); err != nil {
panic(err)
} else if err = json.NewDecoder(f).Decode(&ts); err != nil {
panic(err)
}
return ts
}
func TestGenerate(t *testing.T) {
for _, tok := range mustLoadTests("generate.json") {
k := MustDecodeKeys(tok.Secret)
g := make([]byte, encodedLen(len(tok.Src)))
n := gen(g, []byte(tok.Src), tok.IV[:], tok.Now, k[0])
if n != len(g) {
t.Errorf("want %v, got %v", len(g), n)
}
s := base64.URLEncoding.EncodeToString(g)
if s != tok.Token {
t.Errorf("want %q, got %q", tok.Token, g)
t.Log("want")
dumpTok(t, tok.Token, len(tok.Token))
t.Log("got")
dumpTok(t, s, n)
}
}
}
func TestVerifyOk(t *testing.T) {
for i, tok := range mustLoadTests("verify.json") {
t.Logf("test %d %s", i, tok.Desc)
k := MustDecodeKeys(tok.Secret)
t.Log("tok")
dumpTok(t, tok.Token, len(tok.Token))
ttl := time.Duration(tok.TTLSec) * time.Second
b := mustBase64DecodeString(tok.Token)
g := verify(nil, b, ttl, tok.Now, k[0])
if string(g) != tok.Src {
t.Errorf("got %#v != exp %#v", string(g), tok.Src)
}
}
}
func TestVerifyBad(t *testing.T) {
for i, tok := range mustLoadTests("invalid.json") {
if tok.Desc == "invalid base64" {
continue
}
t.Logf("test %d %s", i, tok.Desc)
t.Log(tok.Token)
b, err := base64.URLEncoding.DecodeString(tok.Token)
if err != nil {
panic(err)
}
k := MustDecodeKeys(tok.Secret)
ttl := time.Duration(tok.TTLSec) * time.Second
if g := verify(nil, b, ttl, tok.Now, k[0]); g != nil {
t.Errorf("got %#v", string(g))
}
}
}
func TestVerifyBadBase64(t *testing.T) {
for i, tok := range mustLoadTests("invalid.json") {
if tok.Desc != "invalid base64" {
continue
}
t.Logf("test %d %s", i, tok.Desc)
t.Log(tok.Token)
k := MustDecodeKeys(tok.Secret)
ttl := time.Duration(tok.TTLSec) * time.Second
if g := VerifyAndDecrypt([]byte(tok.Token), ttl, k); g != nil {
t.Errorf("got %#v", string(g))
}
}
}
func BenchmarkGenerate(b *testing.B) {
k := new(Key)
k.Generate()
msg := []byte("hello")
g := make([]byte, encodedLen(len(msg)))
for i := 0; i < b.N; i++ {
iv := make([]byte, aes.BlockSize)
if _, err := io.ReadFull(rand.Reader, iv); err != nil {
b.Fatal(err)
}
gen(g, msg, iv, time.Now(), k)
//k.EncryptAndSign([]byte("hello"))
}
}
func BenchmarkVerifyOk(b *testing.B) {
t := mustLoadTests("verify.json")[0]
k := MustDecodeKeys(t.Secret)
ttl := time.Duration(t.TTLSec) * time.Second
tok := mustBase64DecodeString(t.Token)
for i := 0; i < b.N; i++ {
verify(nil, tok, ttl, t.Now, k[0])
}
}
func BenchmarkVerifyBad(b *testing.B) {
t := mustLoadTests("invalid.json")[0]
k := MustDecodeKeys(t.Secret)
ttl := time.Duration(t.TTLSec) * time.Second
tok := mustBase64DecodeString(t.Token)
for i := 0; i < b.N; i++ {
verify(nil, tok, ttl, t.Now, k[0])
}
}
func dumpTok(t *testing.T, s string, n int) {
tok := mustBase64DecodeString(s)
dumpField(t, tok, 0, 1)
dumpField(t, tok, 1, 1+8)
dumpField(t, tok, 1+8, 1+8+16)
dumpField(t, tok, 1+8+16, n-32)
dumpField(t, tok, n-32, n)
}
func dumpField(t *testing.T, b []byte, n, e int) {
if len(b) < e {
e = len(b)
}
t.Log(b[n:e])
}
func mustBase64DecodeString(s string) []byte {
b, err := base64.URLEncoding.DecodeString(s)
if err != nil {
panic(err)
}
return b
}
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