mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-11-05 06:43:16 +00:00
307 lines
8.5 KiB
Go
Executable file
307 lines
8.5 KiB
Go
Executable file
// Copyright 2014 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 ssh
|
|
|
|
import (
|
|
"bytes"
|
|
"crypto/dsa"
|
|
"crypto/ecdsa"
|
|
"crypto/elliptic"
|
|
"crypto/rand"
|
|
"crypto/rsa"
|
|
"encoding/base64"
|
|
"fmt"
|
|
"reflect"
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/gogits/gogs/modules/crypto/ssh/testdata"
|
|
)
|
|
|
|
func rawKey(pub PublicKey) interface{} {
|
|
switch k := pub.(type) {
|
|
case *rsaPublicKey:
|
|
return (*rsa.PublicKey)(k)
|
|
case *dsaPublicKey:
|
|
return (*dsa.PublicKey)(k)
|
|
case *ecdsaPublicKey:
|
|
return (*ecdsa.PublicKey)(k)
|
|
case *Certificate:
|
|
return k
|
|
}
|
|
panic("unknown key type")
|
|
}
|
|
|
|
func TestKeyMarshalParse(t *testing.T) {
|
|
for _, priv := range testSigners {
|
|
pub := priv.PublicKey()
|
|
roundtrip, err := ParsePublicKey(pub.Marshal())
|
|
if err != nil {
|
|
t.Errorf("ParsePublicKey(%T): %v", pub, err)
|
|
}
|
|
|
|
k1 := rawKey(pub)
|
|
k2 := rawKey(roundtrip)
|
|
|
|
if !reflect.DeepEqual(k1, k2) {
|
|
t.Errorf("got %#v in roundtrip, want %#v", k2, k1)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestUnsupportedCurves(t *testing.T) {
|
|
raw, err := ecdsa.GenerateKey(elliptic.P224(), rand.Reader)
|
|
if err != nil {
|
|
t.Fatalf("GenerateKey: %v", err)
|
|
}
|
|
|
|
if _, err = NewSignerFromKey(raw); err == nil || !strings.Contains(err.Error(), "only P256") {
|
|
t.Fatalf("NewPrivateKey should not succeed with P224, got: %v", err)
|
|
}
|
|
|
|
if _, err = NewPublicKey(&raw.PublicKey); err == nil || !strings.Contains(err.Error(), "only P256") {
|
|
t.Fatalf("NewPublicKey should not succeed with P224, got: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestNewPublicKey(t *testing.T) {
|
|
for _, k := range testSigners {
|
|
raw := rawKey(k.PublicKey())
|
|
// Skip certificates, as NewPublicKey does not support them.
|
|
if _, ok := raw.(*Certificate); ok {
|
|
continue
|
|
}
|
|
pub, err := NewPublicKey(raw)
|
|
if err != nil {
|
|
t.Errorf("NewPublicKey(%#v): %v", raw, err)
|
|
}
|
|
if !reflect.DeepEqual(k.PublicKey(), pub) {
|
|
t.Errorf("NewPublicKey(%#v) = %#v, want %#v", raw, pub, k.PublicKey())
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestKeySignVerify(t *testing.T) {
|
|
for _, priv := range testSigners {
|
|
pub := priv.PublicKey()
|
|
|
|
data := []byte("sign me")
|
|
sig, err := priv.Sign(rand.Reader, data)
|
|
if err != nil {
|
|
t.Fatalf("Sign(%T): %v", priv, err)
|
|
}
|
|
|
|
if err := pub.Verify(data, sig); err != nil {
|
|
t.Errorf("publicKey.Verify(%T): %v", priv, err)
|
|
}
|
|
sig.Blob[5]++
|
|
if err := pub.Verify(data, sig); err == nil {
|
|
t.Errorf("publicKey.Verify on broken sig did not fail")
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestParseRSAPrivateKey(t *testing.T) {
|
|
key := testPrivateKeys["rsa"]
|
|
|
|
rsa, ok := key.(*rsa.PrivateKey)
|
|
if !ok {
|
|
t.Fatalf("got %T, want *rsa.PrivateKey", rsa)
|
|
}
|
|
|
|
if err := rsa.Validate(); err != nil {
|
|
t.Errorf("Validate: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestParseECPrivateKey(t *testing.T) {
|
|
key := testPrivateKeys["ecdsa"]
|
|
|
|
ecKey, ok := key.(*ecdsa.PrivateKey)
|
|
if !ok {
|
|
t.Fatalf("got %T, want *ecdsa.PrivateKey", ecKey)
|
|
}
|
|
|
|
if !validateECPublicKey(ecKey.Curve, ecKey.X, ecKey.Y) {
|
|
t.Fatalf("public key does not validate.")
|
|
}
|
|
}
|
|
|
|
func TestParseDSA(t *testing.T) {
|
|
// We actually exercise the ParsePrivateKey codepath here, as opposed to
|
|
// using the ParseRawPrivateKey+NewSignerFromKey path that testdata_test.go
|
|
// uses.
|
|
s, err := ParsePrivateKey(testdata.PEMBytes["dsa"])
|
|
if err != nil {
|
|
t.Fatalf("ParsePrivateKey returned error: %s", err)
|
|
}
|
|
|
|
data := []byte("sign me")
|
|
sig, err := s.Sign(rand.Reader, data)
|
|
if err != nil {
|
|
t.Fatalf("dsa.Sign: %v", err)
|
|
}
|
|
|
|
if err := s.PublicKey().Verify(data, sig); err != nil {
|
|
t.Errorf("Verify failed: %v", err)
|
|
}
|
|
}
|
|
|
|
// Tests for authorized_keys parsing.
|
|
|
|
// getTestKey returns a public key, and its base64 encoding.
|
|
func getTestKey() (PublicKey, string) {
|
|
k := testPublicKeys["rsa"]
|
|
|
|
b := &bytes.Buffer{}
|
|
e := base64.NewEncoder(base64.StdEncoding, b)
|
|
e.Write(k.Marshal())
|
|
e.Close()
|
|
|
|
return k, b.String()
|
|
}
|
|
|
|
func TestMarshalParsePublicKey(t *testing.T) {
|
|
pub, pubSerialized := getTestKey()
|
|
line := fmt.Sprintf("%s %s user@host", pub.Type(), pubSerialized)
|
|
|
|
authKeys := MarshalAuthorizedKey(pub)
|
|
actualFields := strings.Fields(string(authKeys))
|
|
if len(actualFields) == 0 {
|
|
t.Fatalf("failed authKeys: %v", authKeys)
|
|
}
|
|
|
|
// drop the comment
|
|
expectedFields := strings.Fields(line)[0:2]
|
|
|
|
if !reflect.DeepEqual(actualFields, expectedFields) {
|
|
t.Errorf("got %v, expected %v", actualFields, expectedFields)
|
|
}
|
|
|
|
actPub, _, _, _, err := ParseAuthorizedKey([]byte(line))
|
|
if err != nil {
|
|
t.Fatalf("cannot parse %v: %v", line, err)
|
|
}
|
|
if !reflect.DeepEqual(actPub, pub) {
|
|
t.Errorf("got %v, expected %v", actPub, pub)
|
|
}
|
|
}
|
|
|
|
type authResult struct {
|
|
pubKey PublicKey
|
|
options []string
|
|
comments string
|
|
rest string
|
|
ok bool
|
|
}
|
|
|
|
func testAuthorizedKeys(t *testing.T, authKeys []byte, expected []authResult) {
|
|
rest := authKeys
|
|
var values []authResult
|
|
for len(rest) > 0 {
|
|
var r authResult
|
|
var err error
|
|
r.pubKey, r.comments, r.options, rest, err = ParseAuthorizedKey(rest)
|
|
r.ok = (err == nil)
|
|
t.Log(err)
|
|
r.rest = string(rest)
|
|
values = append(values, r)
|
|
}
|
|
|
|
if !reflect.DeepEqual(values, expected) {
|
|
t.Errorf("got %#v, expected %#v", values, expected)
|
|
}
|
|
}
|
|
|
|
func TestAuthorizedKeyBasic(t *testing.T) {
|
|
pub, pubSerialized := getTestKey()
|
|
line := "ssh-rsa " + pubSerialized + " user@host"
|
|
testAuthorizedKeys(t, []byte(line),
|
|
[]authResult{
|
|
{pub, nil, "user@host", "", true},
|
|
})
|
|
}
|
|
|
|
func TestAuth(t *testing.T) {
|
|
pub, pubSerialized := getTestKey()
|
|
authWithOptions := []string{
|
|
`# comments to ignore before any keys...`,
|
|
``,
|
|
`env="HOME=/home/root",no-port-forwarding ssh-rsa ` + pubSerialized + ` user@host`,
|
|
`# comments to ignore, along with a blank line`,
|
|
``,
|
|
`env="HOME=/home/root2" ssh-rsa ` + pubSerialized + ` user2@host2`,
|
|
``,
|
|
`# more comments, plus a invalid entry`,
|
|
`ssh-rsa data-that-will-not-parse user@host3`,
|
|
}
|
|
for _, eol := range []string{"\n", "\r\n"} {
|
|
authOptions := strings.Join(authWithOptions, eol)
|
|
rest2 := strings.Join(authWithOptions[3:], eol)
|
|
rest3 := strings.Join(authWithOptions[6:], eol)
|
|
testAuthorizedKeys(t, []byte(authOptions), []authResult{
|
|
{pub, []string{`env="HOME=/home/root"`, "no-port-forwarding"}, "user@host", rest2, true},
|
|
{pub, []string{`env="HOME=/home/root2"`}, "user2@host2", rest3, true},
|
|
{nil, nil, "", "", false},
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestAuthWithQuotedSpaceInEnv(t *testing.T) {
|
|
pub, pubSerialized := getTestKey()
|
|
authWithQuotedSpaceInEnv := []byte(`env="HOME=/home/root dir",no-port-forwarding ssh-rsa ` + pubSerialized + ` user@host`)
|
|
testAuthorizedKeys(t, []byte(authWithQuotedSpaceInEnv), []authResult{
|
|
{pub, []string{`env="HOME=/home/root dir"`, "no-port-forwarding"}, "user@host", "", true},
|
|
})
|
|
}
|
|
|
|
func TestAuthWithQuotedCommaInEnv(t *testing.T) {
|
|
pub, pubSerialized := getTestKey()
|
|
authWithQuotedCommaInEnv := []byte(`env="HOME=/home/root,dir",no-port-forwarding ssh-rsa ` + pubSerialized + ` user@host`)
|
|
testAuthorizedKeys(t, []byte(authWithQuotedCommaInEnv), []authResult{
|
|
{pub, []string{`env="HOME=/home/root,dir"`, "no-port-forwarding"}, "user@host", "", true},
|
|
})
|
|
}
|
|
|
|
func TestAuthWithQuotedQuoteInEnv(t *testing.T) {
|
|
pub, pubSerialized := getTestKey()
|
|
authWithQuotedQuoteInEnv := []byte(`env="HOME=/home/\"root dir",no-port-forwarding` + "\t" + `ssh-rsa` + "\t" + pubSerialized + ` user@host`)
|
|
authWithDoubleQuotedQuote := []byte(`no-port-forwarding,env="HOME=/home/ \"root dir\"" ssh-rsa ` + pubSerialized + "\t" + `user@host`)
|
|
testAuthorizedKeys(t, []byte(authWithQuotedQuoteInEnv), []authResult{
|
|
{pub, []string{`env="HOME=/home/\"root dir"`, "no-port-forwarding"}, "user@host", "", true},
|
|
})
|
|
|
|
testAuthorizedKeys(t, []byte(authWithDoubleQuotedQuote), []authResult{
|
|
{pub, []string{"no-port-forwarding", `env="HOME=/home/ \"root dir\""`}, "user@host", "", true},
|
|
})
|
|
}
|
|
|
|
func TestAuthWithInvalidSpace(t *testing.T) {
|
|
_, pubSerialized := getTestKey()
|
|
authWithInvalidSpace := []byte(`env="HOME=/home/root dir", no-port-forwarding ssh-rsa ` + pubSerialized + ` user@host
|
|
#more to follow but still no valid keys`)
|
|
testAuthorizedKeys(t, []byte(authWithInvalidSpace), []authResult{
|
|
{nil, nil, "", "", false},
|
|
})
|
|
}
|
|
|
|
func TestAuthWithMissingQuote(t *testing.T) {
|
|
pub, pubSerialized := getTestKey()
|
|
authWithMissingQuote := []byte(`env="HOME=/home/root,no-port-forwarding ssh-rsa ` + pubSerialized + ` user@host
|
|
env="HOME=/home/root",shared-control ssh-rsa ` + pubSerialized + ` user@host`)
|
|
|
|
testAuthorizedKeys(t, []byte(authWithMissingQuote), []authResult{
|
|
{pub, []string{`env="HOME=/home/root"`, `shared-control`}, "user@host", "", true},
|
|
})
|
|
}
|
|
|
|
func TestInvalidEntry(t *testing.T) {
|
|
authInvalid := []byte(`ssh-rsa`)
|
|
_, _, _, _, err := ParseAuthorizedKey(authInvalid)
|
|
if err == nil {
|
|
t.Errorf("got valid entry for %q", authInvalid)
|
|
}
|
|
}
|