/
errors.go
69 lines (60 loc) · 1.51 KB
/
errors.go
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package user
import (
"errors"
"net/http"
"github.com/dmitrymomot/oauth2-server/internal/httpencoder"
)
// Predefined errors.
var (
ErrUserNotFound = errors.New("user_not_found")
ErrInvalidPassword = errors.New("invalid_password")
ErrInvalidRequest = errors.New("invalid_request")
ErrInvalidParameter = errors.New("invalid_parameter")
ErrForbidden = errors.New("forbidden")
)
// Error codes map
var ErrorCodes = map[error]int{
ErrUserNotFound: http.StatusNotFound,
ErrInvalidPassword: http.StatusPreconditionFailed,
ErrInvalidRequest: http.StatusBadRequest,
ErrInvalidParameter: http.StatusBadRequest,
ErrForbidden: http.StatusForbidden,
}
// Error messages
var ErrorMessages = map[error]string{
ErrUserNotFound: "User not found",
ErrInvalidPassword: "Invalid current password",
ErrInvalidRequest: "Invalid request",
ErrInvalidParameter: "Invalid parameter",
ErrForbidden: "Forbidden action",
}
// NewError creates a new error
func NewError(err error) *httpencoder.ErrorResponse {
code, ok := ErrorCodes[err]
if !ok {
if stdErr := findError(err); stdErr != nil {
code, ok = ErrorCodes[stdErr]
} else {
return nil
}
}
errStr := err.Error()
msg, ok := ErrorMessages[err]
if !ok {
errStr = http.StatusText(code)
msg = err.Error()
}
return &httpencoder.ErrorResponse{
Code: code,
Err: errStr,
Message: msg,
}
}
func findError(err error) error {
for stdErr := range ErrorCodes {
if errors.Is(err, stdErr) {
return stdErr
}
}
return nil
}