lego/acme/tls_sni_challenge_test.go
2015-11-22 19:31:16 +01:00

100 lines
3.1 KiB
Go

package acme
import (
"crypto/rsa"
"crypto/sha256"
"crypto/tls"
"encoding/hex"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/http/httptest"
"testing"
"github.com/square/go-jose"
)
func TestTLSSNINonRootBind(t *testing.T) {
privKey, _ := generatePrivateKey(rsakey, 128)
jws := &jws{privKey: privKey.(*rsa.PrivateKey)}
solver := &tlsSNIChallenge{jws: jws}
clientChallenge := challenge{Type: "tls-sni-01", Status: "pending", URI: "localhost:4000", Token: "tls1"}
// validate error on non-root bind to 443
if err := solver.Solve(clientChallenge, "127.0.0.1"); err == nil {
t.Error("BIND: Expected Solve to return an error but the error was nil.")
} else {
expectedError := "Could not start HTTPS server for challenge -> listen tcp :443: bind: permission denied"
if err.Error() != expectedError {
t.Errorf("Expected error \"%s\" but instead got \"%s\"", expectedError, err.Error())
}
}
}
func TestTLSSNI(t *testing.T) {
privKey, _ := generatePrivateKey(rsakey, 512)
optPort := "5001"
ts := httptest.NewServer(nil)
ts.Config.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var request challenge
w.Header().Add("Replay-Nonce", "12345")
if r.Method == "HEAD" {
return
}
clientJws, _ := ioutil.ReadAll(r.Body)
j, err := jose.ParseSigned(string(clientJws))
if err != nil {
t.Errorf("Client sent invalid JWS to the server.\n\t%v", err)
return
}
output, err := j.Verify(&privKey.(*rsa.PrivateKey).PublicKey)
if err != nil {
t.Errorf("Unable to verify client data -> %v", err)
}
json.Unmarshal(output, &request)
conn, err := tls.Dial("tcp", "localhost:"+optPort, &tls.Config{
InsecureSkipVerify: true,
})
if err != nil {
t.Errorf("Expected to connect to challenge server without an error. %s", err.Error())
}
// Expect the server to only return one certificate
connState := conn.ConnectionState()
if count := len(connState.PeerCertificates); count != 1 {
t.Errorf("Expected the challenge server to return exactly one certificate but got %d", count)
}
remoteCert := connState.PeerCertificates[0]
if count := len(remoteCert.DNSNames); count != 1 {
t.Errorf("Expected the challenge certificate to have exactly one DNSNames entry but had %d", count)
}
zBytes := sha256.Sum256([]byte(request.KeyAuthorization))
z := hex.EncodeToString(zBytes[:sha256.Size])
domain := fmt.Sprintf("%s.%s.acme.invalid", z[:32], z[32:])
if remoteCert.DNSNames[0] != domain {
t.Errorf("Expected the challenge certificate DNSName to match %s but was %s", domain, remoteCert.DNSNames[0])
}
valid := challenge{Type: "tls-sni-01", Status: "valid", URI: ts.URL, Token: "tls1"}
jsonBytes, _ := json.Marshal(&valid)
w.Write(jsonBytes)
})
jws := &jws{privKey: privKey.(*rsa.PrivateKey), directoryURL: ts.URL}
solver := &tlsSNIChallenge{jws: jws, optPort: optPort}
clientChallenge := challenge{Type: "tls-sni-01", Status: "pending", URI: ts.URL, Token: "tls1"}
if err := solver.Solve(clientChallenge, "127.0.0.1"); err != nil {
t.Error("UNEXPECTED: Expected Solve to return no error but the error was %s.", err.Error())
}
}