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ebcb7d6b40
Use strongly typed errors to set HTTP status codes. Error interfaces are defined in the api/errors package and errors returned from controllers are checked against these interfaces. Errors can be wraeped in a pkg/errors.Causer, as long as somewhere in the line of causes one of the interfaces is implemented. The special error interfaces take precedence over Causer, meaning if both Causer and one of the new error interfaces are implemented, the Causer is not traversed. Signed-off-by: Brian Goff <cpuguy83@gmail.com>
116 lines
2.9 KiB
Go
116 lines
2.9 KiB
Go
package container
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import (
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"encoding/base64"
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"encoding/json"
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"io"
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"net/http"
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"github.com/docker/docker/api/server/httputils"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/versions"
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"golang.org/x/net/context"
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)
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type pathError struct{}
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func (pathError) Error() string {
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return "Path cannot be empty"
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}
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func (pathError) InvalidParameter() {}
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// postContainersCopy is deprecated in favor of getContainersArchive.
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func (s *containerRouter) postContainersCopy(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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// Deprecated since 1.8, Errors out since 1.12
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version := httputils.VersionFromContext(ctx)
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if versions.GreaterThanOrEqualTo(version, "1.24") {
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w.WriteHeader(http.StatusNotFound)
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return nil
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}
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if err := httputils.CheckForJSON(r); err != nil {
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return err
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}
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cfg := types.CopyConfig{}
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if err := json.NewDecoder(r.Body).Decode(&cfg); err != nil {
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return err
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}
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if cfg.Resource == "" {
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return pathError{}
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}
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data, err := s.backend.ContainerCopy(vars["name"], cfg.Resource)
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if err != nil {
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return err
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}
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defer data.Close()
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w.Header().Set("Content-Type", "application/x-tar")
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_, err = io.Copy(w, data)
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return err
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}
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// // Encode the stat to JSON, base64 encode, and place in a header.
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func setContainerPathStatHeader(stat *types.ContainerPathStat, header http.Header) error {
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statJSON, err := json.Marshal(stat)
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if err != nil {
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return err
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}
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header.Set(
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"X-Docker-Container-Path-Stat",
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base64.StdEncoding.EncodeToString(statJSON),
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)
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return nil
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}
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func (s *containerRouter) headContainersArchive(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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v, err := httputils.ArchiveFormValues(r, vars)
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if err != nil {
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return err
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}
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stat, err := s.backend.ContainerStatPath(v.Name, v.Path)
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if err != nil {
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return err
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}
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return setContainerPathStatHeader(stat, w.Header())
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}
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func (s *containerRouter) getContainersArchive(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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v, err := httputils.ArchiveFormValues(r, vars)
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if err != nil {
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return err
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}
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tarArchive, stat, err := s.backend.ContainerArchivePath(v.Name, v.Path)
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if err != nil {
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return err
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}
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defer tarArchive.Close()
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if err := setContainerPathStatHeader(stat, w.Header()); err != nil {
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return err
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}
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w.Header().Set("Content-Type", "application/x-tar")
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_, err = io.Copy(w, tarArchive)
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return err
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}
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func (s *containerRouter) putContainersArchive(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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v, err := httputils.ArchiveFormValues(r, vars)
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if err != nil {
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return err
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}
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noOverwriteDirNonDir := httputils.BoolValue(r, "noOverwriteDirNonDir")
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copyUIDGID := httputils.BoolValue(r, "copyUIDGID")
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return s.backend.ContainerExtractToDir(v.Name, v.Path, copyUIDGID, noOverwriteDirNonDir, r.Body)
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}
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