ezshare/server/http.go

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2021-12-03 22:04:09 +00:00
package server
import (
"encoding/json"
"fmt"
"net/http"
"gitea.benny.dog/torjus/ezshare/store"
"github.com/go-chi/chi/v5"
)
type HTTPServer struct {
store store.FileStore
http.Server
}
func NewHTTPSever(store store.FileStore) *HTTPServer {
srv := &HTTPServer{
store: store,
}
r := chi.NewRouter()
r.Get("/files/{id}", srv.FileHandler)
srv.Handler = r
return srv
}
func (s *HTTPServer) FileHandler(w http.ResponseWriter, r *http.Request) {
id := chi.URLParam(r, "id")
f, err := s.store.GetFile(id)
if err != nil {
if err == store.ErrNoSuchFile {
WriteErrorResponse(w, http.StatusNotFound, "file not found")
return
}
WriteErrorResponse(w, http.StatusInternalServerError, fmt.Sprintf("error: %s", err))
return
}
w.Header().Add("Content-Type", http.DetectContentType(f.Data))
w.Write(f.Data)
}
func WriteErrorResponse(w http.ResponseWriter, status int, message string) {
errMessage := struct {
Error string `json:"error"`
}{
Error: message,
}
w.Header().Add("Content-Type", "application/json")
w.WriteHeader(status)
encoder := json.NewEncoder(w)
encoder.Encode(&errMessage)
}