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fix(saml): provide option to get internal as default ACS (#8888)

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# Which Problems Are Solved

Some SAML IdPs including Google only allow to configure a single
AssertionConsumerService URL.
Since the current metadata provides multiple and the hosted login UI is
not published as neither the first nor with `isDefault=true`, those IdPs
take another and then return an error on sign in.

# How the Problems Are Solved

Allow to reorder the ACS URLs using a query parameter
(`internalUI=true`) when retrieving the metadata endpoint.
This will list the `ui/login/login/externalidp/saml/acs` first and also
set the `isDefault=true`.

# Additional Changes

None

# Additional Context

Reported by a customer
This commit is contained in:
Livio Spring
2024-11-15 07:19:43 +01:00
committed by GitHub
parent 85bdf01505
commit 374b9a7f66
2 changed files with 162 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

122
internal/api/idp/integration_test/idp_test.go
View File

@@ -23,6 +23,7 @@ import (
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
saml_xml "github.com/zitadel/saml/pkg/provider/xml"
"github.com/zitadel/saml/pkg/provider/xml/md"
"golang.org/x/crypto/bcrypt"
http_util "github.com/zitadel/zitadel/internal/api/http"
@@ -111,13 +112,15 @@ func TestServer_SAMLMetadata(t *testing.T) {
oauthIdpResp := Instance.AddGenericOAuthProvider(CTX, Instance.DefaultOrg.Id)
type args struct {
ctx context.Context
idpID string
ctx context.Context
idpID string
internalUI bool
}
tests := []struct {
name string
args args
want int
name string
args args
want int
wantACS []md.IndexedEndpointType
}{
{
name: "saml metadata, invalid idp",
@@ -142,11 +145,115 @@ func TestServer_SAMLMetadata(t *testing.T) {
idpID: samlRedirectIdpID,
},
want: http.StatusOK,
wantACS: []md.IndexedEndpointType{
{
XMLName: xml.Name{
Space: "urn:oasis:names:tc:SAML:2.0:metadata",
Local: "AssertionConsumerService",
},
Index: "1",
IsDefault: "",
Binding: saml.HTTPPostBinding,
Location: http_util.BuildOrigin(Instance.Host(), Instance.Config.Secure) + "/idps/" + samlRedirectIdpID + "/saml/acs",
ResponseLocation: "",
},
{
XMLName: xml.Name{
Space: "urn:oasis:names:tc:SAML:2.0:metadata",
Local: "AssertionConsumerService",
},
Index: "2",
IsDefault: "",
Binding: saml.HTTPArtifactBinding,
Location: http_util.BuildOrigin(Instance.Host(), Instance.Config.Secure) + "/idps/" + samlRedirectIdpID + "/saml/acs",
ResponseLocation: "",
},
{
XMLName: xml.Name{
Space: "urn:oasis:names:tc:SAML:2.0:metadata",
Local: "AssertionConsumerService",
},
Index: "3",
IsDefault: "",
Binding: saml.HTTPPostBinding,
Location: http_util.BuildOrigin(Instance.Host(), Instance.Config.Secure) + "/ui/login/login/externalidp/saml/acs",
ResponseLocation: "",
},
{
XMLName: xml.Name{
Space: "urn:oasis:names:tc:SAML:2.0:metadata",
Local: "AssertionConsumerService",
},
Index: "4",
IsDefault: "",
Binding: saml.HTTPArtifactBinding,
Location: http_util.BuildOrigin(Instance.Host(), Instance.Config.Secure) + "/ui/login/login/externalidp/saml/acs",
ResponseLocation: "",
},
},
},
{
name: "saml metadata, ok (internalUI)",
args: args{
ctx: CTX,
idpID: samlRedirectIdpID,
internalUI: true,
},
want: http.StatusOK,
wantACS: []md.IndexedEndpointType{
{
XMLName: xml.Name{
Space: "urn:oasis:names:tc:SAML:2.0:metadata",
Local: "AssertionConsumerService",
},
Index: "0",
IsDefault: "true",
Binding: saml.HTTPPostBinding,
Location: http_util.BuildOrigin(Instance.Host(), Instance.Config.Secure) + "/ui/login/login/externalidp/saml/acs",
ResponseLocation: "",
},
{
XMLName: xml.Name{
Space: "urn:oasis:names:tc:SAML:2.0:metadata",
Local: "AssertionConsumerService",
},
Index: "1",
IsDefault: "",
Binding: saml.HTTPArtifactBinding,
Location: http_util.BuildOrigin(Instance.Host(), Instance.Config.Secure) + "/ui/login/login/externalidp/saml/acs",
ResponseLocation: "",
},
{
XMLName: xml.Name{
Space: "urn:oasis:names:tc:SAML:2.0:metadata",
Local: "AssertionConsumerService",
},
Index: "2",
IsDefault: "",
Binding: saml.HTTPPostBinding,
Location: http_util.BuildOrigin(Instance.Host(), Instance.Config.Secure) + "/idps/" + samlRedirectIdpID + "/saml/acs",
ResponseLocation: "",
},
{
XMLName: xml.Name{
Space: "urn:oasis:names:tc:SAML:2.0:metadata",
Local: "AssertionConsumerService",
},
Index: "3",
IsDefault: "",
Binding: saml.HTTPArtifactBinding,
Location: http_util.BuildOrigin(Instance.Host(), Instance.Config.Secure) + "/idps/" + samlRedirectIdpID + "/saml/acs",
ResponseLocation: "",
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
metadataURL := http_util.BuildOrigin(Instance.Host(), Instance.Config.Secure) + "/idps/" + tt.args.idpID + "/saml/metadata"
if tt.args.internalUI {
metadataURL = metadataURL + "?internalUI=true"
}
resp, err := http.Get(metadataURL)
assert.NoError(t, err)
assert.Equal(t, tt.want, resp.StatusCode)
@@ -155,10 +262,11 @@ func TestServer_SAMLMetadata(t *testing.T) {
defer resp.Body.Close()
assert.NoError(t, err)
_, err = saml_xml.ParseMetadataXmlIntoStruct(b)
metadata, err := saml_xml.ParseMetadataXmlIntoStruct(b)
assert.NoError(t, err)
}
assert.Equal(t, metadata.SPSSODescriptor.AssertionConsumerService, tt.wantACS)
}
})
}
}