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283 lines
7.1 KiB
Go
283 lines
7.1 KiB
Go
// +build !windows
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// TODO Windows: This uses a Unix socket for testing. This might be possible
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// to port to Windows using a named pipe instead.
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package authorization
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import (
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"bytes"
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"encoding/json"
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"io/ioutil"
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"net"
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"net/http"
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"net/http/httptest"
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"os"
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"path"
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"reflect"
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"strings"
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"testing"
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"github.com/docker/docker/pkg/plugins"
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"github.com/docker/go-connections/tlsconfig"
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"github.com/gorilla/mux"
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)
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const (
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pluginAddress = "authz-test-plugin.sock"
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)
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func TestAuthZRequestPluginError(t *testing.T) {
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server := authZPluginTestServer{t: t}
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server.start()
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defer server.stop()
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authZPlugin := createTestPlugin(t)
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request := Request{
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User: "user",
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RequestBody: []byte("sample body"),
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RequestURI: "www.authz.com/auth",
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RequestMethod: "GET",
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RequestHeaders: map[string]string{"header": "value"},
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}
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server.replayResponse = Response{
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Err: "an error",
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}
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actualResponse, err := authZPlugin.AuthZRequest(&request)
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if err != nil {
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t.Fatalf("Failed to authorize request %v", err)
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}
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if !reflect.DeepEqual(server.replayResponse, *actualResponse) {
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t.Fatal("Response must be equal")
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}
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if !reflect.DeepEqual(request, server.recordedRequest) {
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t.Fatal("Requests must be equal")
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}
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}
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func TestAuthZRequestPlugin(t *testing.T) {
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server := authZPluginTestServer{t: t}
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server.start()
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defer server.stop()
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authZPlugin := createTestPlugin(t)
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request := Request{
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User: "user",
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RequestBody: []byte("sample body"),
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RequestURI: "www.authz.com/auth",
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RequestMethod: "GET",
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RequestHeaders: map[string]string{"header": "value"},
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}
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server.replayResponse = Response{
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Allow: true,
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Msg: "Sample message",
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}
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actualResponse, err := authZPlugin.AuthZRequest(&request)
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if err != nil {
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t.Fatalf("Failed to authorize request %v", err)
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}
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if !reflect.DeepEqual(server.replayResponse, *actualResponse) {
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t.Fatal("Response must be equal")
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}
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if !reflect.DeepEqual(request, server.recordedRequest) {
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t.Fatal("Requests must be equal")
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}
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}
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func TestAuthZResponsePlugin(t *testing.T) {
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server := authZPluginTestServer{t: t}
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server.start()
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defer server.stop()
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authZPlugin := createTestPlugin(t)
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request := Request{
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User: "user",
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RequestURI: "something.com/auth",
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RequestBody: []byte("sample body"),
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}
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server.replayResponse = Response{
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Allow: true,
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Msg: "Sample message",
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}
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actualResponse, err := authZPlugin.AuthZResponse(&request)
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if err != nil {
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t.Fatalf("Failed to authorize request %v", err)
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}
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if !reflect.DeepEqual(server.replayResponse, *actualResponse) {
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t.Fatal("Response must be equal")
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}
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if !reflect.DeepEqual(request, server.recordedRequest) {
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t.Fatal("Requests must be equal")
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}
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}
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func TestResponseModifier(t *testing.T) {
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r := httptest.NewRecorder()
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m := NewResponseModifier(r)
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m.Header().Set("h1", "v1")
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m.Write([]byte("body"))
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m.WriteHeader(http.StatusInternalServerError)
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m.FlushAll()
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if r.Header().Get("h1") != "v1" {
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t.Fatalf("Header value must exists %s", r.Header().Get("h1"))
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}
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if !reflect.DeepEqual(r.Body.Bytes(), []byte("body")) {
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t.Fatalf("Body value must exists %s", r.Body.Bytes())
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}
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if r.Code != http.StatusInternalServerError {
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t.Fatalf("Status code must be correct %d", r.Code)
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}
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}
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func TestDrainBody(t *testing.T) {
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tests := []struct {
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length int // length is the message length send to drainBody
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expectedBodyLength int // expectedBodyLength is the expected body length after drainBody is called
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}{
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{10, 10}, // Small message size
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{maxBodySize - 1, maxBodySize - 1}, // Max message size
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{maxBodySize * 2, 0}, // Large message size (skip copying body)
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}
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for _, test := range tests {
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msg := strings.Repeat("a", test.length)
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body, closer, err := drainBody(ioutil.NopCloser(bytes.NewReader([]byte(msg))))
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if err != nil {
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t.Fatal(err)
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}
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if len(body) != test.expectedBodyLength {
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t.Fatalf("Body must be copied, actual length: '%d'", len(body))
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}
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if closer == nil {
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t.Fatal("Closer must not be nil")
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}
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modified, err := ioutil.ReadAll(closer)
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if err != nil {
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t.Fatalf("Error must not be nil: '%v'", err)
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}
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if len(modified) != len(msg) {
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t.Fatalf("Result should not be truncated. Original length: '%d', new length: '%d'", len(msg), len(modified))
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}
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}
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}
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func TestResponseModifierOverride(t *testing.T) {
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r := httptest.NewRecorder()
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m := NewResponseModifier(r)
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m.Header().Set("h1", "v1")
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m.Write([]byte("body"))
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m.WriteHeader(http.StatusInternalServerError)
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overrideHeader := make(http.Header)
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overrideHeader.Add("h1", "v2")
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overrideHeaderBytes, err := json.Marshal(overrideHeader)
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if err != nil {
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t.Fatalf("override header failed %v", err)
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}
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m.OverrideHeader(overrideHeaderBytes)
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m.OverrideBody([]byte("override body"))
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m.OverrideStatusCode(http.StatusNotFound)
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m.FlushAll()
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if r.Header().Get("h1") != "v2" {
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t.Fatalf("Header value must exists %s", r.Header().Get("h1"))
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}
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if !reflect.DeepEqual(r.Body.Bytes(), []byte("override body")) {
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t.Fatalf("Body value must exists %s", r.Body.Bytes())
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}
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if r.Code != http.StatusNotFound {
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t.Fatalf("Status code must be correct %d", r.Code)
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}
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}
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// createTestPlugin creates a new sample authorization plugin
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func createTestPlugin(t *testing.T) *authorizationPlugin {
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pwd, err := os.Getwd()
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if err != nil {
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t.Fatal(err)
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}
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client, err := plugins.NewClient("unix:///"+path.Join(pwd, pluginAddress), &tlsconfig.Options{InsecureSkipVerify: true})
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if err != nil {
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t.Fatalf("Failed to create client %v", err)
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}
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return &authorizationPlugin{name: "plugin", plugin: client}
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}
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// AuthZPluginTestServer is a simple server that implements the authZ plugin interface
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type authZPluginTestServer struct {
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listener net.Listener
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t *testing.T
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// request stores the request sent from the daemon to the plugin
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recordedRequest Request
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// response stores the response sent from the plugin to the daemon
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replayResponse Response
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server *httptest.Server
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}
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// start starts the test server that implements the plugin
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func (t *authZPluginTestServer) start() {
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r := mux.NewRouter()
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l, err := net.Listen("unix", pluginAddress)
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if err != nil {
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t.t.Fatal(err)
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}
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t.listener = l
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r.HandleFunc("/Plugin.Activate", t.activate)
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r.HandleFunc("/"+AuthZApiRequest, t.auth)
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r.HandleFunc("/"+AuthZApiResponse, t.auth)
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t.server = &httptest.Server{
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Listener: l,
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Config: &http.Server{
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Handler: r,
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Addr: pluginAddress,
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},
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}
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t.server.Start()
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}
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// stop stops the test server that implements the plugin
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func (t *authZPluginTestServer) stop() {
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t.server.Close()
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os.Remove(pluginAddress)
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if t.listener != nil {
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t.listener.Close()
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}
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}
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// auth is a used to record/replay the authentication api messages
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func (t *authZPluginTestServer) auth(w http.ResponseWriter, r *http.Request) {
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t.recordedRequest = Request{}
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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t.t.Fatal(err)
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}
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r.Body.Close()
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json.Unmarshal(body, &t.recordedRequest)
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b, err := json.Marshal(t.replayResponse)
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if err != nil {
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t.t.Fatal(err)
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}
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w.Write(b)
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}
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func (t *authZPluginTestServer) activate(w http.ResponseWriter, r *http.Request) {
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b, err := json.Marshal(plugins.Manifest{Implements: []string{AuthZApiImplements}})
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if err != nil {
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t.t.Fatal(err)
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}
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w.Write(b)
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}
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