83 lines
1.8 KiB
Go
83 lines
1.8 KiB
Go
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package http
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import (
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"encoding/json"
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"io"
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"io/fs"
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"net/http"
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"os"
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"github.com/pkg/errors"
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"gitlab.com/wpetit/goweb/logger"
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)
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const (
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ErrCodeForbidden = "forbidden"
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ErrCodeInternalError = "internal-error"
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ErrCodeBadRequest = "bad-request"
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ErrCodeNotFound = "not-found"
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)
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type jsonErrorResponse struct {
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Error jsonErr `json:"error"`
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}
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type jsonErr struct {
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Code string `json:"code"`
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}
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func JSONError(w http.ResponseWriter, status int, code string) {
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w.Header().Add("Content-Type", "application/json")
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w.WriteHeader(status)
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encoder := json.NewEncoder(w)
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response := jsonErrorResponse{
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Error: jsonErr{
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Code: code,
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},
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}
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if err := encoder.Encode(response); err != nil {
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panic(errors.WithStack(err))
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}
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}
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func ServeFile(w http.ResponseWriter, r *http.Request, fs fs.FS, path string) {
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ctx := logger.With(r.Context(), logger.F("path", path))
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file, err := fs.Open(path)
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if err != nil {
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if errors.Is(err, os.ErrNotExist) {
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http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
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return
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}
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logger.Error(ctx, "error while opening fs file", logger.CapturedE(errors.WithStack(err)))
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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return
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}
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defer func() {
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if err := file.Close(); err != nil {
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logger.Error(ctx, "error while closing fs file", logger.CapturedE(errors.WithStack(err)))
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}
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}()
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info, err := file.Stat()
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if err != nil {
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logger.Error(ctx, "error while retrieving fs file stat", logger.CapturedE(errors.WithStack(err)))
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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return
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}
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reader, ok := file.(io.ReadSeeker)
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if !ok {
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return
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}
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http.ServeContent(w, r, path, info.ModTime(), reader)
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}
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