forked from moov-io/signedxml
/
envelopedsignature.go
39 lines (32 loc) · 957 Bytes
/
envelopedsignature.go
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package signedxml
import (
"errors"
"github.com/beevik/etree"
)
// EnvelopedSignature implements the CanonicalizationAlgorithm
// interface and is used for processing the
// http://www.w3.org/2000/09/xmldsig#enveloped-signature transform
// algorithm
type EnvelopedSignature struct{}
// Process is called to transfrom the XML using the EnvelopedSignature
// algorithm
func (e EnvelopedSignature) Process(inputXML string,
transformXML string) (outputXML string, err error) {
doc := etree.NewDocument()
doc.ReadFromString(inputXML)
sig := doc.FindElement(".//Signature")
if sig == nil {
return "", errors.New("signedxml: unable to find Signature node")
}
sigParent := sig.Parent()
elem := sigParent.RemoveChild(sig)
if elem == nil {
return "", errors.New("signedxml: unable to remove Signature element")
}
docString, err := doc.WriteToString()
if err != nil {
return "", err
}
//logger.Println(docString)
return docString, nil
}