traefik/pkg/middlewares/headers/headers_test.go

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package headers
// Middleware tests based on https://github.com/unrolled/secure
import (
"context"
"net/http"
"net/http/httptest"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/traefik/traefik/v2/pkg/config/dynamic"
"github.com/traefik/traefik/v2/pkg/tracing"
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)
func TestNew_withoutOptions(t *testing.T) {
next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.WriteHeader(http.StatusOK) })
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mid, err := New(context.Background(), next, dynamic.Headers{}, "testing")
require.Errorf(t, err, "headers configuration not valid")
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assert.Nil(t, mid)
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}
func TestNew_allowedHosts(t *testing.T) {
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testCases := []struct {
desc string
fromHost string
expected int
}{
{
desc: "Should accept the request when given a host that is in the list",
fromHost: "foo.com",
expected: http.StatusOK,
},
{
desc: "Should refuse the request when no host is given",
fromHost: "",
expected: http.StatusInternalServerError,
},
{
desc: "Should refuse the request when no matching host is given",
fromHost: "boo.com",
expected: http.StatusInternalServerError,
},
}
emptyHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.WriteHeader(http.StatusOK) })
cfg := dynamic.Headers{
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AllowedHosts: []string{"foo.com", "bar.com"},
}
mid, err := New(context.Background(), emptyHandler, cfg, "foo")
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require.NoError(t, err)
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
req := httptest.NewRequest(http.MethodGet, "/foo", nil)
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req.Host = test.fromHost
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rw := httptest.NewRecorder()
mid.ServeHTTP(rw, req)
assert.Equal(t, test.expected, rw.Code)
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})
}
}
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func TestNew_customHeaders(t *testing.T) {
next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.WriteHeader(http.StatusOK) })
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cfg := dynamic.Headers{
CustomRequestHeaders: map[string]string{
"X-Custom-Request-Header": "test_request",
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},
CustomResponseHeaders: map[string]string{
"X-Custom-Response-Header": "test_response",
},
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}
mid, err := New(context.Background(), next, cfg, "testing")
require.NoError(t, err)
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req := httptest.NewRequest(http.MethodGet, "/foo", nil)
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rw := httptest.NewRecorder()
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mid.ServeHTTP(rw, req)
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assert.Equal(t, http.StatusOK, rw.Code)
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assert.Equal(t, "test_request", req.Header.Get("X-Custom-Request-Header"))
assert.Equal(t, "test_response", rw.Header().Get("X-Custom-Response-Header"))
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}
func Test_headers_getTracingInformation(t *testing.T) {
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next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
mid := &headers{
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handler: next,
name: "testing",
}
name, trace := mid.GetTracingInformation()
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assert.Equal(t, "testing", name)
assert.Equal(t, tracing.SpanKindNoneEnum, trace)
}