netbird/management/server/http/util.go
2022-11-05 10:24:50 +01:00

98 lines
2.5 KiB
Go

package http
import (
"encoding/json"
"errors"
"fmt"
"github.com/netbirdio/netbird/management/server"
"github.com/netbirdio/netbird/management/server/jwtclaims"
log "github.com/sirupsen/logrus"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"net/http"
"time"
)
// writeJSONObject simply writes object to the HTTP reponse in JSON format
func writeJSONObject(w http.ResponseWriter, obj interface{}) {
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
err := json.NewEncoder(w).Encode(obj)
if err != nil {
http.Error(w, "failed handling request", http.StatusInternalServerError)
return
}
}
// Duration is used strictly for JSON requests/responses due to duration marshalling issues
type Duration struct {
time.Duration
}
func (d Duration) MarshalJSON() ([]byte, error) {
return json.Marshal(d.String())
}
func (d *Duration) UnmarshalJSON(b []byte) error {
var v interface{}
if err := json.Unmarshal(b, &v); err != nil {
return err
}
switch value := v.(type) {
case float64:
d.Duration = time.Duration(value)
return nil
case string:
var err error
d.Duration, err = time.ParseDuration(value)
if err != nil {
return err
}
return nil
default:
return errors.New("invalid duration")
}
}
func getJWTAccount(accountManager server.AccountManager,
jwtExtractor jwtclaims.ClaimsExtractor,
authAudience string, r *http.Request) (*server.Account, *server.User, error) {
claims := jwtExtractor.ExtractClaimsFromRequestContext(r, authAudience)
account, err := accountManager.GetAccountFromToken(claims)
if err != nil {
return nil, nil, fmt.Errorf("failed getting account of a user %s: %v", claims.UserId, err)
}
user := account.Users[claims.UserId]
if user == nil {
// this is not really possible because we got an account by user ID
return nil, nil, fmt.Errorf("user %s not found", claims.UserId)
}
return account, user, nil
}
func toHTTPError(err error, w http.ResponseWriter) {
errStatus, ok := status.FromError(err)
if ok && errStatus.Code() == codes.Internal {
http.Error(w, errStatus.String(), http.StatusInternalServerError)
return
}
if ok && errStatus.Code() == codes.NotFound {
http.Error(w, errStatus.String(), http.StatusNotFound)
return
}
if ok && errStatus.Code() == codes.InvalidArgument {
http.Error(w, errStatus.String(), http.StatusBadRequest)
return
}
unhandledMSG := fmt.Sprintf("got unhandled error code, error: %s", errStatus.String())
log.Error(unhandledMSG)
http.Error(w, unhandledMSG, http.StatusInternalServerError)
}