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signature_test.go
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signature_test.go
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package xmldsig_test
import (
"encoding/xml"
"os"
"testing"
"time"
"github.com/invopop/xmldsig"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
type SampleDoc struct {
XMLName xml.Name `xml:"test:SampleDoc"`
TestNamespace string `xml:"xmlns:test,attr"`
Title string
Signature *xmldsig.Signature `xml:"ds:Signature,omitempty"`
}
func TestSignature(t *testing.T) {
doc := &SampleDoc{
TestNamespace: "http://invopop.com/xml/test",
Title: "This is a test",
}
data, err := xml.Marshal(doc)
require.NoError(t, err)
certificate, err := getCertificate()
require.NoError(t, err)
t.Run("should return a signature", func(t *testing.T) {
signature, err := xmldsig.Sign(data,
xmldsig.WithCertificate(certificate),
xmldsig.WithXAdES(xadesConfig()),
)
assert.Nil(t, err)
assert.NotEmpty(t, signature.Value.Value)
doc.Signature = signature
out, err := xml.Marshal(doc)
require.NoError(t, err)
require.NoError(t, os.WriteFile("./data/out/sample_doc.xml", out, 0644))
})
t.Run("should not add the timestamp when parameter is false", func(t *testing.T) {
signature, err := xmldsig.Sign(data,
xmldsig.WithCertificate(certificate),
xmldsig.WithXAdES(xadesConfig()),
)
assert.Nil(t, err)
assert.Nil(t, signature.Object.QualifyingProperties.UnsignedProperties)
})
t.Run("should add the timestamp when parameter is true", func(t *testing.T) {
signature, err := xmldsig.Sign(data,
xmldsig.WithCertificate(certificate),
xmldsig.WithXAdES(xadesConfig()),
xmldsig.WithTimestamp(xmldsig.TimestampFreeTSA),
)
require.NoError(t, err)
assert.NotEmpty(t, getTimestamp(signature))
})
t.Run("should support setting a fixed signing time", func(t *testing.T) {
ts, err := time.Parse(time.RFC3339, "2022-08-05T13:51:00+02:00")
require.NoError(t, err)
signature, err := xmldsig.Sign(data,
xmldsig.WithDocID("test"),
xmldsig.WithCertificate(certificate),
xmldsig.WithXAdES(xadesConfig()),
xmldsig.WithCurrentTime(func() time.Time {
return ts
}),
)
assert.Nil(t, err)
// This is mostly useful for getting back fixed results, so
// we can safely compare the final signature here.
assert.Contains(t, signature.Value.Value, "r1GyPRqPZN3LXZ7SKpENUtI7dSXA83aIlza7fG2c1XGnHOK4HNweEDifqg65owS6TYLn7eZtiUXMHN49CUnZ7YDo9O")
})
t.Run("should not set a signer role when not provided", func(t *testing.T) {
xades := xadesConfig()
xades.Role = ""
signature, err := xmldsig.Sign(data,
xmldsig.WithCertificate(certificate),
xmldsig.WithXAdES(xades),
)
assert.Nil(t, err)
assert.Nil(t, signature.Object.QualifyingProperties.SignedProperties.SignatureProperties.SignerRole)
})
t.Run("should set a signer role when provided", func(t *testing.T) {
signature, err := xmldsig.Sign(data,
xmldsig.WithCertificate(certificate),
xmldsig.WithXAdES(xadesConfig()),
)
assert.Nil(t, err)
assert.Equal(t,
"third party",
signature.Object.QualifyingProperties.SignedProperties.
SignatureProperties.SignerRole.ClaimedRoles.ClaimedRole[0])
})
}
func xadesConfig() *xmldsig.XAdESConfig {
return &xmldsig.XAdESConfig{
Role: xmldsig.XAdESSignerRole("third party"),
Description: "test",
Policy: &xmldsig.XAdESPolicyConfig{
URL: "http://www.facturae.es/politica_de_firma_formato_facturae/politica_de_firma_formato_facturae_v3_1.pdf",
Description: "Política de Firma FacturaE v3.1",
Algorithm: "http://www.w3.org/2000/09/xmldsig#sha1",
Hash: "Ohixl6upD6av8N7pEvDABhEL6hM=",
},
}
}
func getCertificate() (*xmldsig.Certificate, error) {
return xmldsig.LoadCertificate(testCertificateFile, testCertificatePass)
}
/*
func getExampleXML(t *testing.T) []byte {
data, err := os.ReadFile("./data/invoice-vat.xml")
require.NoError(t, err)
return data
}
*/
func getTimestamp(signature *xmldsig.Signature) string {
return signature.Object.QualifyingProperties.
UnsignedProperties.SignatureTimestamp.EncapsulatedTimeStamp
}