package auth import ( "context" "fmt" "io" "net/http" "net/http/httptest" "os" "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/testhelpers" ) func TestBasicAuthFail(t *testing.T) { next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { fmt.Fprintln(w, "traefik") }) auth := dynamic.BasicAuth{ Users: []string{"test"}, } _, err := NewBasic(context.Background(), next, auth, "authName") require.Error(t, err) auth2 := dynamic.BasicAuth{ Users: []string{"test:test"}, } authMiddleware, err := NewBasic(context.Background(), next, auth2, "authTest") require.NoError(t, err) ts := httptest.NewServer(authMiddleware) defer ts.Close() req := testhelpers.MustNewRequest(http.MethodGet, ts.URL, nil) req.SetBasicAuth("test", "test") res, err := http.DefaultClient.Do(req) require.NoError(t, err) assert.Equal(t, http.StatusUnauthorized, res.StatusCode, "they should be equal") } func TestBasicAuthSuccess(t *testing.T) { next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { fmt.Fprintln(w, "traefik") }) auth := dynamic.BasicAuth{ Users: []string{"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/"}, } authMiddleware, err := NewBasic(context.Background(), next, auth, "authName") require.NoError(t, err) ts := httptest.NewServer(authMiddleware) defer ts.Close() req := testhelpers.MustNewRequest(http.MethodGet, ts.URL, nil) req.SetBasicAuth("test", "test") res, err := http.DefaultClient.Do(req) require.NoError(t, err) assert.Equal(t, http.StatusOK, res.StatusCode, "they should be equal") body, err := io.ReadAll(res.Body) require.NoError(t, err) defer res.Body.Close() assert.Equal(t, "traefik\n", string(body), "they should be equal") } func TestBasicAuthUserHeader(t *testing.T) { next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { assert.Equal(t, "test", r.Header["X-Webauth-User"][0], "auth user should be set") fmt.Fprintln(w, "traefik") }) auth := dynamic.BasicAuth{ Users: []string{"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/"}, HeaderField: "X-Webauth-User", } middleware, err := NewBasic(context.Background(), next, auth, "authName") require.NoError(t, err) ts := httptest.NewServer(middleware) defer ts.Close() req := testhelpers.MustNewRequest(http.MethodGet, ts.URL, nil) req.SetBasicAuth("test", "test") res, err := http.DefaultClient.Do(req) require.NoError(t, err) assert.Equal(t, http.StatusOK, res.StatusCode) body, err := io.ReadAll(res.Body) require.NoError(t, err) defer res.Body.Close() assert.Equal(t, "traefik\n", string(body)) } func TestBasicAuthHeaderRemoved(t *testing.T) { next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { assert.Empty(t, r.Header.Get(authorizationHeader)) fmt.Fprintln(w, "traefik") }) auth := dynamic.BasicAuth{ RemoveHeader: true, Users: []string{"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/"}, } middleware, err := NewBasic(context.Background(), next, auth, "authName") require.NoError(t, err) ts := httptest.NewServer(middleware) defer ts.Close() req := testhelpers.MustNewRequest(http.MethodGet, ts.URL, nil) req.SetBasicAuth("test", "test") res, err := http.DefaultClient.Do(req) require.NoError(t, err) assert.Equal(t, http.StatusOK, res.StatusCode) body, err := io.ReadAll(res.Body) require.NoError(t, err) err = res.Body.Close() require.NoError(t, err) assert.Equal(t, "traefik\n", string(body)) } func TestBasicAuthHeaderPresent(t *testing.T) { next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { assert.NotEmpty(t, r.Header.Get(authorizationHeader)) fmt.Fprintln(w, "traefik") }) auth := dynamic.BasicAuth{ Users: []string{"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/"}, } middleware, err := NewBasic(context.Background(), next, auth, "authName") require.NoError(t, err) ts := httptest.NewServer(middleware) defer ts.Close() req := testhelpers.MustNewRequest(http.MethodGet, ts.URL, nil) req.SetBasicAuth("test", "test") res, err := http.DefaultClient.Do(req) require.NoError(t, err) assert.Equal(t, http.StatusOK, res.StatusCode) body, err := io.ReadAll(res.Body) require.NoError(t, err) err = res.Body.Close() require.NoError(t, err) assert.Equal(t, "traefik\n", string(body)) } func TestBasicAuthUsersFromFile(t *testing.T) { testCases := []struct { desc string userFileContent string expectedUsers map[string]string givenUsers []string realm string }{ { desc: "Finds the users in the file", userFileContent: "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/\ntest2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0\n", givenUsers: []string{}, expectedUsers: map[string]string{"test": "test", "test2": "test2"}, }, { desc: "Merges given users with users from the file", userFileContent: "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/\n", givenUsers: []string{"test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0", "test3:$apr1$3rJbDP0q$RfzJiorTk78jQ1EcKqWso0"}, expectedUsers: map[string]string{"test": "test", "test2": "test2", "test3": "test3"}, }, { desc: "Given users have priority over users in the file", userFileContent: "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/\ntest2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0\n", givenUsers: []string{"test2:$apr1$mK.GtItK$ncnLYvNLek0weXdxo68690"}, expectedUsers: map[string]string{"test": "test", "test2": "overridden"}, }, { desc: "Should authenticate the correct user based on the realm", userFileContent: "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/\ntest2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0\n", givenUsers: []string{"test2:$apr1$mK.GtItK$ncnLYvNLek0weXdxo68690"}, expectedUsers: map[string]string{"test": "test", "test2": "overridden"}, realm: "traefik", }, { desc: "Should skip comments", userFileContent: "#Comment\ntest:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/\ntest2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0\n", givenUsers: []string{}, expectedUsers: map[string]string{"test": "test", "test2": "test2"}, realm: "traefiker", }, } for _, test := range testCases { t.Run(test.desc, func(t *testing.T) { t.Parallel() // Creates the temporary configuration file with the users usersFile, err := os.CreateTemp(t.TempDir(), "auth-users") require.NoError(t, err) _, err = usersFile.WriteString(test.userFileContent) require.NoError(t, err) // Creates the configuration for our Authenticator authenticatorConfiguration := dynamic.BasicAuth{ Users: test.givenUsers, UsersFile: usersFile.Name(), Realm: test.realm, } next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { fmt.Fprintln(w, "traefik") }) authenticator, err := NewBasic(context.Background(), next, authenticatorConfiguration, "authName") require.NoError(t, err) ts := httptest.NewServer(authenticator) defer ts.Close() for userName, userPwd := range test.expectedUsers { req := testhelpers.MustNewRequest(http.MethodGet, ts.URL, nil) req.SetBasicAuth(userName, userPwd) var res *http.Response res, err = http.DefaultClient.Do(req) require.NoError(t, err) require.Equal(t, http.StatusOK, res.StatusCode, "Cannot authenticate user "+userName) var body []byte body, err = io.ReadAll(res.Body) require.NoError(t, err) err = res.Body.Close() require.NoError(t, err) require.Equal(t, "traefik\n", string(body)) } // Checks that user foo doesn't work req := testhelpers.MustNewRequest(http.MethodGet, ts.URL, nil) req.SetBasicAuth("foo", "foo") res, err := http.DefaultClient.Do(req) require.NoError(t, err) require.Equal(t, http.StatusUnauthorized, res.StatusCode) if len(test.realm) > 0 { require.Equal(t, `Basic realm="`+test.realm+`"`, res.Header.Get("WWW-Authenticate")) } body, err := io.ReadAll(res.Body) require.NoError(t, err) err = res.Body.Close() require.NoError(t, err) require.NotContains(t, "traefik", string(body)) }) } }