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a65068aff8
Add a hanlder to figure out if the specified http request came through a libpod endpoint. A first user is the top endpoint which has a different default value for `ps_args` depending if the request came through the docker or libpod endpoint. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
54 lines
1.4 KiB
Go
54 lines
1.4 KiB
Go
package utils
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"os"
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"strings"
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"github.com/sirupsen/logrus"
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)
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// IsLibpodRequest returns true if the request related to a libpod endpoint
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// (e.g., /v2/libpod/...).
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func IsLibpodRequest(r *http.Request) bool {
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split := strings.Split(r.URL.String(), "/")
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return len(split) >= 3 && split[2] == "libpod"
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}
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// WriteResponse encodes the given value as JSON or string and renders it for http client
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func WriteResponse(w http.ResponseWriter, code int, value interface{}) {
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switch v := value.(type) {
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case string:
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w.Header().Set("Content-Type", "text/plain; charset=us-ascii")
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w.WriteHeader(code)
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if _, err := fmt.Fprintln(w, v); err != nil {
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logrus.Errorf("unable to send string response: %q", err)
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}
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case *os.File:
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w.Header().Set("Content-Type", "application/octet; charset=us-ascii")
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w.WriteHeader(code)
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if _, err := io.Copy(w, v); err != nil {
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logrus.Errorf("unable to copy to response: %q", err)
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}
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default:
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WriteJSON(w, code, value)
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}
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}
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func WriteJSON(w http.ResponseWriter, code int, value interface{}) {
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// FIXME: we don't need to write the header in all/some circumstances.
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(code)
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coder := json.NewEncoder(w)
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coder.SetEscapeHTML(true)
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if err := coder.Encode(value); err != nil {
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logrus.Errorf("unable to write json: %q", err)
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}
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}
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