/
xml_test.go
297 lines (254 loc) · 8.59 KB
/
xml_test.go
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package saml
import (
"crypto/rand"
"crypto/rsa"
"testing"
"time"
"github.com/lestrrat/go-libxml2/dom"
"github.com/lestrrat/go-libxml2/parser"
"github.com/lestrrat/go-saml/binding"
"github.com/lestrrat/go-saml/nameid"
"github.com/lestrrat/go-saml/ns"
"github.com/lestrrat/go-xmlsec"
"github.com/lestrrat/go-xmlsec/crypto"
"github.com/lestrrat/go-xmlsec/dsig"
"github.com/stretchr/testify/assert"
)
func TestAssertion_XML(t *testing.T) {
a := Assertion{
Conditions: Conditions{
NotBefore: time.Now(),
NotOnOrAfter: time.Now(),
},
Version: "2.0",
ID: "b07b804c-7c29-ea16-7300-4f3d6f7928ac",
IssueInstant: time.Now(),
Issuer: "https://idp.example.org/SAML2",
Subject: Subject{
NameID: NameID{
Format: nameid.Transient,
Value: "3f7b3dcf-1674-4ecd-92c8-1544f346baf8",
},
SubjectConfirmation: SubjectConfirmation{
InResponseTo: "aaf23196-1773-2113-474a-fe114412ab72",
Recipient: "https://sp.example.com/SAML2/SSO/POST",
NotOnOrAfter: time.Now(),
},
},
AuthnStatement: AuthnStatement{
AuthnInstant: time.Now(),
SessionIndex: "b07b804c-7c29-ea16-7300-4f3d6f7928ac",
AuthnContext: AuthnContext{
AuthnContextClassRef: PasswordProtectedTransport,
},
},
}
a.Conditions.AddAudience("https://sp.example.com/SAML2")
a.AddAttribute(Attribute{
Attrs: map[string]string{
"xmlns:" + ns.X500.Prefix: ns.X500.URI,
ns.X500.AddPrefix("Encoding"): "LDAP",
"NameFormat": ns.NameFormatURI,
},
Name: "urn:oid:1.3.6.1.4.1.5923.1.1.1.1",
FriendlyName: "eduPersonAffiliation",
Values: []AttributeValue{
AttributeValue{
Type: ns.XMLSchema.AddPrefix("string"),
Value: "member",
},
AttributeValue{
Type: ns.XMLSchema.AddPrefix("string"),
Value: "staff",
},
},
})
xmlstr, err := a.Serialize()
if !assert.NoError(t, err, "Serialize() succeeds") {
return
}
p := parser.New(parser.XMLParseDTDLoad | parser.XMLParseDTDAttr | parser.XMLParseNoEnt)
c14ndoc, err := p.ParseString(xmlstr)
if !assert.NoError(t, err, "Parse C14N XML doc succeeds") {
return
}
defer c14ndoc.Free()
}
func TestAuthnRequest(t *testing.T) {
xmlsec.Init()
defer xmlsec.Shutdown()
ar := NewAuthnRequest()
ar.ID = "809707f0030a5d00620c9d9df97f627afe9dcc24"
ar.Version = "2.0"
ar.IssueInstant = time.Now()
ar.Issuer = "http://sp.example.com/metadata"
ar.Destination = "http://idp.example.com/sso"
ar.ProviderName = "FooProvider"
ar.ProtocolBinding = binding.HTTPPost
ar.AssertionConsumerServiceURL = "http://sp.example.com/acs"
ar.NameIDPolicy = NewNameIDPolicy(nameid.EmailAddress, true)
ar.RequestedAuthnContext = NewRequestedAuthnContext(
"exact",
"urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport",
)
xmlstr, err := ar.Serialize()
if !assert.NoError(t, err, "Serialize() succeeds") {
return
}
p := parser.New(parser.XMLParseDTDLoad | parser.XMLParseDTDAttr | parser.XMLParseNoEnt)
c14ndoc, err := p.ParseString(xmlstr)
if !assert.NoError(t, err, "Parse C14N XML doc succeeds") {
return
}
defer c14ndoc.Free()
root, err := c14ndoc.DocumentElement()
if !assert.NoError(t, err, "DocumentElement succeeds") {
return
}
privkey, err := rsa.GenerateKey(rand.Reader, 2048)
if !assert.NoError(t, err, "GenerateKey succeeds") {
return
}
signer, err := dsig.NewSignature(root, dsig.ExclC14N, dsig.RsaSha1, "urn:oasis:names:tc:SAML:2.0:protocol:AuthnRequest")
if !assert.NoError(t, err, "dsig.NewSignature succeeds") {
return
}
if !assert.NoError(t, signer.AddReference(dsig.Sha1, "", "", ""), "AddReference succeeds") {
return
}
if !assert.NoError(t, signer.AddTransform(dsig.Enveloped), "AddTransform succeeds") {
return
}
if !assert.NoError(t, signer.AddKeyValue(), "AddKeyValue succeeds") {
return
}
key, err := crypto.LoadKeyFromRSAPrivateKey(privkey)
if !assert.NoError(t, err, "Load key from RSA private key succeeds") {
return
}
if !assert.NoError(t, signer.Sign(key), "Sign succeeds") {
return
}
t.Logf("%s", c14ndoc.Dump(true))
}
func TestResponse(t *testing.T) {
xmlsec.Init()
defer xmlsec.Shutdown()
res := NewResponse()
res.Issuer = "http://idp.example.com/metadata"
res.Destination = "http://sp.example.com/sso"
// Run serialize once so we can check for empty assertion
xmlstr, err := res.Serialize()
if !assert.NoError(t, err, "Serialize() succeeds") {
return
}
if !assert.NotContains(t, xmlstr, "<Assertion", "Should not contain assertion") {
return
}
res.Assertion = NewAssertion()
res.Assertion.Conditions.AddAudience("sp.example.com/sso")
xmlstr, err = res.Serialize()
if !assert.NoError(t, err, "Serialize() succeeds") {
return
}
if !assert.Contains(t, xmlstr, "<saml:Audience>sp.example.com/sso", "<saml:Audience> exists") {
return
}
p := parser.New(parser.XMLParseDTDLoad | parser.XMLParseDTDAttr | parser.XMLParseNoEnt)
doc, err := p.ParseString(xmlstr)
if !assert.NoError(t, err, "Parse XML doc succeeds") {
return
}
defer doc.Free()
c14nxml, err := dom.C14NSerialize{Mode: dom.C14NExclusive1_0}.Serialize(doc)
if !assert.NoError(t, err, "C14NSerialize.Serialize succeeds") {
return
}
c14ndoc, err := p.ParseString(c14nxml)
if !assert.NoError(t, err, "Parse C14N doc succeeds") {
return
}
defer c14ndoc.Free()
root, err := c14ndoc.DocumentElement()
if !assert.NoError(t, err, "DocumentElement succeeds") {
return
}
privkey, err := rsa.GenerateKey(rand.Reader, 2048)
if !assert.NoError(t, err, "GenerateKey succeeds") {
return
}
signer, err := dsig.NewSignature(root, dsig.ExclC14N, dsig.RsaSha1, "urn:oasis:names:tc:SAML:2.0:protocol:Response")
if !assert.NoError(t, err, "dsig.NewSignature succeeds") {
return
}
if !assert.NoError(t, signer.AddReference(dsig.Sha1, "", "", ""), "AddReference succeeds") {
return
}
if !assert.NoError(t, signer.AddTransform(dsig.Enveloped), "AddTransform succeeds") {
return
}
if !assert.NoError(t, signer.AddKeyValue(), "AddKeyValue succeeds") {
return
}
key, err := crypto.LoadKeyFromRSAPrivateKey(privkey)
if !assert.NoError(t, err, "Load key from RSA private key succeeds") {
return
}
if !assert.NoError(t, signer.Sign(key), "Sign succeeds") {
t.Logf("%s", c14ndoc.Dump(true))
return
}
t.Logf("%s", c14ndoc.Dump(true))
}
func TestParseAuthnRequest(t *testing.T) {
const xmlsrc = `<?xml version="1.0" encoding="utf-8"?>
<saml:AuthnRequest xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" AssertionConsumerServiceURL="http://sp.example.com/acs" Destination="http://idp.example.com/sso" ID="809707f0030a5d00620c9d9df97f627afe9dcc24" IssueInstant="2015-11-30T18:18:31" ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" ProviderName="FooProvider" Version="2.0">
<saml:Issuer>http://sp.example.com/metadata</saml:Issuer>
<saml:NameIDPolicy AllowCreate="true" Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress"/>
<saml:RequestedAuthnContext Comparison="exact">
<saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</saml:AuthnContextClassRef>
</saml:RequestedAuthnContext>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#" Id="urn:oasis:names:tc:SAML:2.0:protocol:AuthnRequest">
<SignedInfo>
<CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
<SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<Reference>
<Transforms>
<Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
</Transforms>
<DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<DigestValue>GuGtxIMZFN7XWsKRJW8x6/+Xf9Y=</DigestValue>
</Reference>
</SignedInfo>
<SignatureValue>v3S/CRBOf/TTvkGF+0exmOVQLz1ITgbAJ0+OUx1LSvAbxFxl/jqP+FLMz+qN5baC
QKYit5KcJWBjqfNukfKGhvdV8wR02m56FJQtYU+Xb42i1tHvS4h4krJiCBekn19M
2l01QaLnZxBhNYPoXkcsVGEOJOZVokPEbXEdze5n5Svaajdlfww9NpIbP5G4gQ76
QAzvSaZ34JkNN2sNQgRN9G+KT689M4I2i7OATNyckqguR8I3qjrxtAvVaDKNITTI
9yt7pHcf1Y6JA9WO3NXLsHq+z0KetS4qnBQ1vFr7nKxKJDOcBuqIVzGWuTgo98/W
uruUEt5gXJrdbUpiUAGnHg==</SignatureValue>
</Signature>
</saml:AuthnRequest>`
req, err := ParseAuthnRequestString(xmlsrc)
if !assert.NoError(t, err, "ParseAuthnRequestString succeeds") {
return
}
xmlstr, err := req.Serialize()
if !assert.NoError(t, err, "Serialize succeeds") {
return
}
t.Logf("%s", xmlstr)
encoded, err := req.Encode(nil)
if !assert.NoError(t, err, "Encode succeeds") {
return
}
t.Logf("%s", encoded)
decoded, err := DecodeAuthnRequest(encoded, false)
if !assert.NoError(t, err, "Decode succeeds") {
return
}
xmlstr2, err := decoded.Serialize()
if !assert.NoError(t, err, "Serialize succeeds") {
return
}
t.Logf("%s", xmlstr2)
}