package main import ( "bytes" "encoding/json" "fmt" "io" "net/http" "strings" "sync" "testing" "github.com/docker/docker/api/types/versions" "github.com/docker/docker/testutil/request" "github.com/pkg/errors" "gotest.tools/v3/assert" ) func (s *DockerSuite) TestExecResizeAPIHeightWidthNoInt(c *testing.T) { testRequires(c, DaemonIsLinux) out, _ := dockerCmd(c, "run", "-d", "busybox", "top") cleanedContainerID := strings.TrimSpace(out) endpoint := "/exec/" + cleanedContainerID + "/resize?h=foo&w=bar" res, _, err := request.Post(endpoint) assert.NilError(c, err) if versions.LessThan(testEnv.DaemonAPIVersion(), "1.32") { assert.Equal(c, res.StatusCode, http.StatusInternalServerError) } else { assert.Equal(c, res.StatusCode, http.StatusBadRequest) } } // Part of #14845 func (s *DockerSuite) TestExecResizeImmediatelyAfterExecStart(c *testing.T) { name := "exec_resize_test" dockerCmd(c, "run", "-d", "-i", "-t", "--name", name, "--restart", "always", "busybox", "/bin/sh") testExecResize := func() error { data := map[string]interface{}{ "AttachStdin": true, "Cmd": []string{"/bin/sh"}, } uri := fmt.Sprintf("/containers/%s/exec", name) res, body, err := request.Post(uri, request.JSONBody(data)) if err != nil { return err } if res.StatusCode != http.StatusCreated { return errors.Errorf("POST %s is expected to return %d, got %d", uri, http.StatusCreated, res.StatusCode) } buf, err := request.ReadBody(body) assert.NilError(c, err) out := map[string]string{} err = json.Unmarshal(buf, &out) if err != nil { return errors.Wrap(err, "ExecCreate returned invalid json") } execID := out["Id"] if len(execID) < 1 { return errors.New("ExecCreate got invalid execID") } payload := bytes.NewBufferString(`{"Tty":true}`) wc, _, err := requestHijack(http.MethodPost, fmt.Sprintf("/exec/%s/start", execID), payload, "application/json", request.DaemonHost()) if err != nil { return errors.Wrap(err, "failed to start the exec") } defer wc.Close() _, rc, err := request.Post(fmt.Sprintf("/exec/%s/resize?h=24&w=80", execID), request.ContentType("text/plain")) if err != nil { // It's probably a panic of the daemon if io.ErrUnexpectedEOF is returned. if err == io.ErrUnexpectedEOF { return errors.New("the daemon might have crashed") } // Other error happened, should be reported. return errors.Wrap(err, "failed to exec resize immediately after start") } rc.Close() return nil } // The panic happens when daemon.ContainerExecStart is called but the // container.Exec is not called. // Because the panic is not 100% reproducible, we send the requests concurrently // to increase the probability that the problem is triggered. var ( n = 10 ch = make(chan error, n) wg sync.WaitGroup ) for i := 0; i < n; i++ { wg.Add(1) go func() { defer wg.Done() if err := testExecResize(); err != nil { ch <- err } }() } wg.Wait() select { case err := <-ch: c.Fatal(err.Error()) default: } }