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| author | Ed Santiago <santiago@redhat.com> | 2020-02-11 09:13:53 -0700 |
|---|---|---|
| committer | Ed Santiago <santiago@redhat.com> | 2020-02-11 10:50:23 -0700 |
| commit | bdccdd2265340d48a0ba868d8c312fdd3172f1c3 (patch) | |
| tree | 631919c602a8df61b1f53ba6844095d683d6268c | |
| parent | 86b5a89d1afb641196214ed9c57e83e617776c5f (diff) | |
| download | podman-bdccdd2265340d48a0ba868d8c312fdd3172f1c3.tar.gz podman-bdccdd2265340d48a0ba868d8c312fdd3172f1c3.tar.bz2 podman-bdccdd2265340d48a0ba868d8c312fdd3172f1c3.zip | |
API v2: pods: fix two incorrect return codes
1) /pods/<X>/exists - is documented to return 204, and that's
the correct value, but until now it has been returning 200.
2) /pods/create - return 409 (conflict), not 500, when pod
already exists
Also: in WriteResponse(), if code is 204 (No Content) or 304
(Not Modified), emit the status code only but no content-type
headers nor content.
Signed-off-by: Ed Santiago <santiago@redhat.com>
| -rw-r--r-- | pkg/api/handlers/libpod/pods.go | 8 | ||||
| -rw-r--r-- | pkg/api/handlers/utils/handler.go | 8 | ||||
| -rw-r--r-- | pkg/api/server/register_pods.go | 2 |
3 files changed, 16 insertions, 2 deletions
diff --git a/pkg/api/handlers/libpod/pods.go b/pkg/api/handlers/libpod/pods.go index 091368985..8fb305290 100644 --- a/pkg/api/handlers/libpod/pods.go +++ b/pkg/api/handlers/libpod/pods.go @@ -91,7 +91,11 @@ func PodCreate(w http.ResponseWriter, r *http.Request) { pod, err := runtime.NewPod(r.Context(), options...) if err != nil { - utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err) + http_code := http.StatusInternalServerError + if errors.Cause(err) == define.ErrPodExists { + http_code = http.StatusConflict + } + utils.Error(w, "Something went wrong.", http_code, err) return } utils.WriteResponse(w, http.StatusCreated, handlers.IDResponse{ID: pod.CgroupParent()}) @@ -409,5 +413,5 @@ func PodExists(w http.ResponseWriter, r *http.Request) { utils.PodNotFound(w, name, err) return } - utils.WriteResponse(w, http.StatusOK, "") + utils.WriteResponse(w, http.StatusNoContent, "") } diff --git a/pkg/api/handlers/utils/handler.go b/pkg/api/handlers/utils/handler.go index 970f93791..44bcc794c 100644 --- a/pkg/api/handlers/utils/handler.go +++ b/pkg/api/handlers/utils/handler.go @@ -23,6 +23,14 @@ func IsLibpodRequest(r *http.Request) bool { // WriteResponse encodes the given value as JSON or string and renders it for http client func WriteResponse(w http.ResponseWriter, code int, value interface{}) { + // RFC2616 explicitly states that the following status codes "MUST NOT + // include a message-body": + switch code { + case http.StatusNoContent, http.StatusNotModified: // 204, 304 + w.WriteHeader(code) + return + } + switch v := value.(type) { case string: w.Header().Set("Content-Type", "text/plain; charset=us-ascii") diff --git a/pkg/api/server/register_pods.go b/pkg/api/server/register_pods.go index 5c7b51871..974568d47 100644 --- a/pkg/api/server/register_pods.go +++ b/pkg/api/server/register_pods.go @@ -41,6 +41,8 @@ func (s *APIServer) registerPodsHandlers(r *mux.Router) error { // type: string // 400: // $ref: "#/responses/BadParamError" + // 409: + // description: pod already exists // 500: // $ref: "#/responses/InternalError" r.Handle(VersionedPath("/libpod/pods/prune"), APIHandler(s.Context, libpod.PodPrune)).Methods(http.MethodPost) |