package stripprefixregex 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/middlewares/stripprefix" "github.com/traefik/traefik/v2/pkg/testhelpers" ) func TestStripPrefixRegex(t *testing.T) { testPrefixRegex := dynamic.StripPrefixRegex{ Regex: []string{"/a/api/", "/b/([a-z0-9]+)/", "/c/[a-z0-9]+/[0-9]+/"}, } testCases := []struct { path string expectedStatusCode int expectedPath string expectedRawPath string expectedHeader string }{ { path: "/a/test", expectedStatusCode: http.StatusOK, expectedPath: "/a/test", }, { path: "/a/test/", expectedStatusCode: http.StatusOK, expectedPath: "/a/test/", }, { path: "/a/api/", expectedStatusCode: http.StatusOK, expectedPath: "", expectedHeader: "/a/api/", }, { path: "/a/api/test", expectedStatusCode: http.StatusOK, expectedPath: "/test", expectedHeader: "/a/api/", }, { path: "/a/api/test/", expectedStatusCode: http.StatusOK, expectedPath: "/test/", expectedHeader: "/a/api/", }, { path: "/b/api/", expectedStatusCode: http.StatusOK, expectedPath: "", expectedHeader: "/b/api/", }, { path: "/b/api", expectedStatusCode: http.StatusOK, expectedPath: "/b/api", }, { path: "/b/api/test1", expectedStatusCode: http.StatusOK, expectedPath: "/test1", expectedHeader: "/b/api/", }, { path: "/b/api2/test2", expectedStatusCode: http.StatusOK, expectedPath: "/test2", expectedHeader: "/b/api2/", }, { path: "/c/api/123/", expectedStatusCode: http.StatusOK, expectedPath: "", expectedHeader: "/c/api/123/", }, { path: "/c/api/123", expectedStatusCode: http.StatusOK, expectedPath: "/c/api/123", }, { path: "/c/api/123/test3", expectedStatusCode: http.StatusOK, expectedPath: "/test3", expectedHeader: "/c/api/123/", }, { path: "/c/api/abc/test4", expectedStatusCode: http.StatusOK, expectedPath: "/c/api/abc/test4", }, { path: "/a/api/a%2Fb", expectedStatusCode: http.StatusOK, expectedPath: "/a/b", expectedRawPath: "/a%2Fb", expectedHeader: "/a/api/", }, } for _, test := range testCases { t.Run(test.path, func(t *testing.T) { t.Parallel() var actualPath, actualRawPath, actualHeader, requestURI string handlerPath := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { actualPath = r.URL.Path actualRawPath = r.URL.RawPath actualHeader = r.Header.Get(stripprefix.ForwardedPrefixHeader) requestURI = r.RequestURI }) handler, err := New(context.Background(), handlerPath, testPrefixRegex, "foo-strip-prefix-regex") require.NoError(t, err) req := testhelpers.MustNewRequest(http.MethodGet, "http://localhost"+test.path, nil) resp := &httptest.ResponseRecorder{Code: http.StatusOK} handler.ServeHTTP(resp, req) assert.Equal(t, test.expectedStatusCode, resp.Code, "Unexpected status code.") assert.Equal(t, test.expectedPath, actualPath, "Unexpected path.") assert.Equal(t, test.expectedRawPath, actualRawPath, "Unexpected raw path.") assert.Equal(t, test.expectedHeader, actualHeader, "Unexpected '%s' header.", stripprefix.ForwardedPrefixHeader) if test.expectedPath != test.path { expectedRequestURI := test.expectedPath if test.expectedRawPath != "" { // go HTTP uses the raw path when existent in the RequestURI expectedRequestURI = test.expectedRawPath } if test.expectedPath == "" { expectedRequestURI = "/" } assert.Equal(t, expectedRequestURI, requestURI, "Unexpected request URI.") } }) } }