67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
package authority
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"net/http"
|
|
)
|
|
|
|
type apiCtx map[string]interface{}
|
|
|
|
// Error implements the api.Error interface and adds context to error messages.
|
|
type apiError struct {
|
|
err error
|
|
code int
|
|
context apiCtx
|
|
}
|
|
|
|
// Cause implements the errors.Causer interface and returns the original error.
|
|
func (e *apiError) Cause() error {
|
|
return e.err
|
|
}
|
|
|
|
// Error returns an error message with additional context.
|
|
func (e *apiError) Error() string {
|
|
ret := e.err.Error()
|
|
|
|
/*
|
|
if len(e.context) > 0 {
|
|
ret += "\n\nContext:"
|
|
for k, v := range e.context {
|
|
ret += fmt.Sprintf("\n %s: %v", k, v)
|
|
}
|
|
}
|
|
*/
|
|
return ret
|
|
}
|
|
|
|
// ErrorResponse represents an error in JSON format.
|
|
type ErrorResponse struct {
|
|
Status int `json:"status"`
|
|
Message string `json:"message"`
|
|
}
|
|
|
|
// StatusCode returns an http status code indicating the type and severity of
|
|
// the error.
|
|
func (e *apiError) StatusCode() int {
|
|
if e.code == 0 {
|
|
return http.StatusInternalServerError
|
|
}
|
|
return e.code
|
|
}
|
|
|
|
// MarshalJSON implements json.Marshaller interface for the Error struct.
|
|
func (e *apiError) MarshalJSON() ([]byte, error) {
|
|
return json.Marshal(&ErrorResponse{Status: e.code, Message: http.StatusText(e.code)})
|
|
}
|
|
|
|
// UnmarshalJSON implements json.Unmarshaler interface for the Error struct.
|
|
func (e *apiError) UnmarshalJSON(data []byte) error {
|
|
var er ErrorResponse
|
|
if err := json.Unmarshal(data, &er); err != nil {
|
|
return err
|
|
}
|
|
e.code = er.Status
|
|
e.err = fmt.Errorf(er.Message)
|
|
return nil
|
|
}
|