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package message
import (
"errors"
"net/http"
"strings"
)
// ErrorWithCode wraps an internal error with an http code, and a 'safe' version of
// the error that can be served to clients without revealing internal business logic.
//
// A typical use of this error would be to first log the Original error, then return
// the Safe error and the StatusCode to an API caller.
type ErrorWithCode interface {
// Error returns the original internal error for debugging within the GoToSocial logs.
// This should *NEVER* be returned to a client as it may contain sensitive information.
Error() string
// Safe returns the API-safe version of the error for serialization towards a client.
// There's not much point logging this internally because it won't contain much helpful information.
Safe() string
// Code returns the status code for serving to a client.
Code() int
}
type errorWithCode struct {
original error
safe error
code int
}
func (e errorWithCode) Error() string {
return e.original.Error()
}
func (e errorWithCode) Safe() string {
return e.safe.Error()
}
func (e errorWithCode) Code() int {
return e.code
}
// NewErrorBadRequest returns an ErrorWithCode 400 with the given original error and optional help text.
func NewErrorBadRequest(original error, helpText ...string) ErrorWithCode {
safe := "bad request"
if helpText != nil {
safe = safe + ": " + strings.Join(helpText, ": ")
}
return errorWithCode{
original: original,
safe: errors.New(safe),
code: http.StatusBadRequest,
}
}
// NewErrorNotAuthorized returns an ErrorWithCode 401 with the given original error and optional help text.
func NewErrorNotAuthorized(original error, helpText ...string) ErrorWithCode {
safe := "not authorized"
if helpText != nil {
safe = safe + ": " + strings.Join(helpText, ": ")
}
return errorWithCode{
original: original,
safe: errors.New(safe),
code: http.StatusUnauthorized,
}
}
// NewErrorForbidden returns an ErrorWithCode 403 with the given original error and optional help text.
func NewErrorForbidden(original error, helpText ...string) ErrorWithCode {
safe := "forbidden"
if helpText != nil {
safe = safe + ": " + strings.Join(helpText, ": ")
}
return errorWithCode{
original: original,
safe: errors.New(safe),
code: http.StatusForbidden,
}
}
// NewErrorNotFound returns an ErrorWithCode 404 with the given original error and optional help text.
func NewErrorNotFound(original error, helpText ...string) ErrorWithCode {
safe := "404 not found"
if helpText != nil {
safe = safe + ": " + strings.Join(helpText, ": ")
}
return errorWithCode{
original: original,
safe: errors.New(safe),
code: http.StatusNotFound,
}
}
// NewErrorInternalError returns an ErrorWithCode 500 with the given original error and optional help text.
func NewErrorInternalError(original error, helpText ...string) ErrorWithCode {
safe := "internal server error"
if helpText != nil {
safe = safe + ": " + strings.Join(helpText, ": ")
}
return errorWithCode{
original: original,
safe: errors.New(safe),
code: http.StatusInternalServerError,
}
}
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