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tailscale/cmd/k8s-operator/proxy_test.go

115 lines
2.8 KiB
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
//go:build !plan9
package main
import (
"net/http"
"testing"
"github.com/google/go-cmp/cmp"
"go.uber.org/zap"
"tailscale.com/client/tailscale/apitype"
"tailscale.com/tailcfg"
"tailscale.com/util/must"
)
func TestImpersonationHeaders(t *testing.T) {
zl, err := zap.NewDevelopment()
if err != nil {
t.Fatal(err)
}
tests := []struct {
name string
emailish string
tags []string
capMap tailcfg.PeerCapMap
wantHeaders http.Header
}{
{
name: "user",
emailish: "foo@example.com",
wantHeaders: http.Header{
"Impersonate-User": {"foo@example.com"},
},
},
{
name: "tagged",
emailish: "tagged-device",
tags: []string{"tag:foo", "tag:bar"},
wantHeaders: http.Header{
"Impersonate-User": {"node.ts.net"},
"Impersonate-Group": {"tag:foo", "tag:bar"},
},
},
{
name: "user-with-cap",
emailish: "foo@example.com",
capMap: tailcfg.PeerCapMap{
tailcfg.PeerCapabilityKubernetes: {
tailcfg.RawMessage(`{"impersonate":{"groups":["group1","group2"]}}`),
tailcfg.RawMessage(`{"impersonate":{"groups":["group1","group3"]}}`), // One group is duplicated.
tailcfg.RawMessage(`{"impersonate":{"groups":["group4"]}}`),
tailcfg.RawMessage(`{"impersonate":{"groups":["group2"]}}`), // duplicate
// These should be ignored, but should parse correctly.
tailcfg.RawMessage(`{}`),
tailcfg.RawMessage(`{"impersonate":{}}`),
tailcfg.RawMessage(`{"impersonate":{"groups":[]}}`),
},
},
wantHeaders: http.Header{
"Impersonate-Group": {"group1", "group2", "group3", "group4"},
"Impersonate-User": {"foo@example.com"},
},
},
{
name: "tagged-with-cap",
emailish: "tagged-device",
tags: []string{"tag:foo", "tag:bar"},
capMap: tailcfg.PeerCapMap{
tailcfg.PeerCapabilityKubernetes: {
tailcfg.RawMessage(`{"impersonate":{"groups":["group1"]}}`),
},
},
wantHeaders: http.Header{
"Impersonate-Group": {"group1"},
"Impersonate-User": {"node.ts.net"},
},
},
{
name: "bad-cap",
emailish: "tagged-device",
tags: []string{"tag:foo", "tag:bar"},
capMap: tailcfg.PeerCapMap{
tailcfg.PeerCapabilityKubernetes: {
tailcfg.RawMessage(`[]`),
},
},
wantHeaders: http.Header{},
},
}
for _, tc := range tests {
r := must.Get(http.NewRequest("GET", "https://op.ts.net/api/foo", nil))
r = r.WithContext(whoIsKey.WithValue(r.Context(), &apitype.WhoIsResponse{
Node: &tailcfg.Node{
Name: "node.ts.net",
Tags: tc.tags,
},
UserProfile: &tailcfg.UserProfile{
LoginName: tc.emailish,
},
CapMap: tc.capMap,
}))
addImpersonationHeaders(r, zl.Sugar())
if d := cmp.Diff(tc.wantHeaders, r.Header); d != "" {
t.Errorf("unexpected header (-want +got):\n%s", d)
}
}
}