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329b2a26f3
In situations where an empty ID was passed, the client would construct an
invalid API endpoint URL, which either resulted in the "not found" handler
being hit (resulting in a "page not found" error), or even the wrong endpoint
being hit if the client follows redirects.
For example, `/containers/<empty id>/json` (inspect) redirects to `/containers/json`
(docker ps))
Given that empty IDs should never be expected (especially if they're part of
the API URL path), we can validate these and return early.
Its worth noting that a few methods already had an error in place; those
methods were related to the situation mentioned above, where (e.g.) an
"inspect" would redirect to a "list" endpoint. The existing errors, for
convenience, mimicked a "not found" error; this patch changes such errors
to an "Invalid Parameter" instead, which is more correct, but it could be
a breaking change for some edge cases where users parsed the output;
git grep 'objectNotFoundError{'
client/config_inspect.go: return swarm.Config{}, nil, objectNotFoundError{object: "config", id: id}
client/container_inspect.go: return container.InspectResponse{}, nil, objectNotFoundError{object: "container", id: containerID}
client/container_inspect.go: return container.InspectResponse{}, objectNotFoundError{object: "container", id: containerID}
client/distribution_inspect.go: return distributionInspect, objectNotFoundError{object: "distribution", id: imageRef}
client/image_inspect.go: return image.InspectResponse{}, nil, objectNotFoundError{object: "image", id: imageID}
client/network_inspect.go: return network.Inspect{}, nil, objectNotFoundError{object: "network", id: networkID}
client/node_inspect.go: return swarm.Node{}, nil, objectNotFoundError{object: "node", id: nodeID}
client/plugin_inspect.go: return nil, nil, objectNotFoundError{object: "plugin", id: name}
client/secret_inspect.go: return swarm.Secret{}, nil, objectNotFoundError{object: "secret", id: id}
client/service_inspect.go: return swarm.Service{}, nil, objectNotFoundError{object: "service", id: serviceID}
client/task_inspect.go: return swarm.Task{}, nil, objectNotFoundError{object: "task", id: taskID}
client/volume_inspect.go: return volume.Volume{}, nil, objectNotFoundError{object: "volume", id: volumeID}
Two such errors are still left, as "ID or name" would probably be confusing,
but perhaps we can use a more generic error to include those as well (e.g.
"invalid <object> reference: value is empty");
client/distribution_inspect.go: return distributionInspect, objectNotFoundError{object: "distribution", id: imageRef}
client/image_inspect.go: return image.InspectResponse{}, nil, objectNotFoundError{object: "image", id: imageID}
Before this patch:
docker container start ""
Error response from daemon: page not found
Error: failed to start containers:
docker container start " "
Error response from daemon: No such container:
Error: failed to start containers:
With this patch:
docker container start ""
invalid container name or ID: value is empty
Error: failed to start containers:
docker container start " "
invalid container name or ID: value is empty
Error: failed to start containers:
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
77 lines
2.5 KiB
Go
77 lines
2.5 KiB
Go
package client // import "github.com/docker/docker/client"
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import (
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"bytes"
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"context"
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"fmt"
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"io"
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"net/http"
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"strings"
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"testing"
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"github.com/docker/docker/api/types/container"
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"github.com/docker/docker/errdefs"
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"gotest.tools/v3/assert"
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is "gotest.tools/v3/assert/cmp"
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)
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func TestContainerRestartError(t *testing.T) {
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client := &Client{
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client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
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}
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err := client.ContainerRestart(context.Background(), "nothing", container.StopOptions{})
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assert.Check(t, is.ErrorType(err, errdefs.IsSystem))
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err = client.ContainerRestart(context.Background(), "", container.StopOptions{})
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assert.Check(t, is.ErrorType(err, errdefs.IsInvalidParameter))
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assert.Check(t, is.ErrorContains(err, "value is empty"))
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err = client.ContainerRestart(context.Background(), " ", container.StopOptions{})
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assert.Check(t, is.ErrorType(err, errdefs.IsInvalidParameter))
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assert.Check(t, is.ErrorContains(err, "value is empty"))
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}
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// TestContainerRestartConnectionError verifies that connection errors occurring
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// during API-version negotiation are not shadowed by API-version errors.
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//
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// Regression test for https://github.com/docker/cli/issues/4890
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func TestContainerRestartConnectionError(t *testing.T) {
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client, err := NewClientWithOpts(WithAPIVersionNegotiation(), WithHost("tcp://no-such-host.invalid"))
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assert.NilError(t, err)
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err = client.ContainerRestart(context.Background(), "nothing", container.StopOptions{})
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assert.Check(t, is.ErrorType(err, IsErrConnectionFailed))
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}
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func TestContainerRestart(t *testing.T) {
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const expectedURL = "/v1.42/containers/container_id/restart"
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client := &Client{
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client: newMockClient(func(req *http.Request) (*http.Response, error) {
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if !strings.HasPrefix(req.URL.Path, expectedURL) {
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return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
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}
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s := req.URL.Query().Get("signal")
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if s != "SIGKILL" {
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return nil, fmt.Errorf("signal not set in URL query. Expected 'SIGKILL', got '%s'", s)
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}
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t := req.URL.Query().Get("t")
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if t != "100" {
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return nil, fmt.Errorf("t (timeout) not set in URL query properly. Expected '100', got %s", t)
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}
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return &http.Response{
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StatusCode: http.StatusOK,
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Body: io.NopCloser(bytes.NewReader([]byte(""))),
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}, nil
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}),
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version: "1.42",
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}
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timeout := 100
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err := client.ContainerRestart(context.Background(), "container_id", container.StopOptions{
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Signal: "SIGKILL",
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Timeout: &timeout,
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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