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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| package statuserror | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "github.com/go-json-experiment/json" | ||
| "go/ast" | ||
| "net/http" | ||
| "path/filepath" | ||
| "reflect" | ||
| "strconv" | ||
|
|
||
| "github.com/go-json-experiment/json/jsontext" | ||
| ) | ||
|
|
||
| type WithStatusCode interface { | ||
| StatusCode() int | ||
| } | ||
|
|
||
| type WithErrCode interface { | ||
| ErrCode() string | ||
| } | ||
|
|
||
| type WithLocation interface { | ||
| Location() string | ||
| } | ||
|
|
||
| type WithJSONPointer interface { | ||
| JSONPointer() jsontext.Pointer | ||
| } | ||
|
|
||
| type IntOrString string | ||
|
|
||
| type Descriptor struct { | ||
| Code string `json:"code,omitzero"` | ||
| Message string `json:"message,omitzero"` | ||
| Location string `json:"location,omitzero"` | ||
| Pointer jsontext.Pointer `json:"pointer,omitzero"` | ||
| Source string `json:"source,omitzero"` | ||
|
|
||
| Status int `json:"-"` | ||
| Errors []*Descriptor `json:"-"` | ||
|
|
||
| Extra map[string]any `json:",inline"` | ||
| } | ||
|
|
||
| func (e *Descriptor) UnmarshalErrorResponse(statusCode int, raw []byte) error { | ||
| if err := json.Unmarshal(raw, e); err != nil { | ||
| e.Status = statusCode | ||
| e.Message = string(raw) | ||
| return nil | ||
| } | ||
|
|
||
| v, _ := strconv.ParseInt(e.Code, 10, 64) | ||
| if v > 0 { | ||
| e.Status = 0 | ||
| } | ||
|
|
||
| if e.Extra != nil { | ||
| if msg, ok := e.Extra["msg"].(string); ok { | ||
| e.Message = msg | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (e *Descriptor) StatusCode() int { | ||
| return e.Status | ||
| } | ||
|
|
||
| func (e *Descriptor) Error() string { | ||
| return fmt.Sprintf("%s{message=%q}", e.Code, e.Message) | ||
| } | ||
|
|
||
| func asDescriptor(err error, source string, loc string) *Descriptor { | ||
| if errResp, ok := err.(*Descriptor); ok { | ||
| return errResp | ||
| } | ||
|
|
||
| er := &Descriptor{ | ||
| Source: source, | ||
| Location: loc, | ||
| } | ||
|
|
||
| if w, ok := err.(interface{ Unwrap() error }); ok { | ||
| if e := w.Unwrap(); e != nil { | ||
| er.Message = e.Error() | ||
| } | ||
| } | ||
|
|
||
| if er.Message == "" { | ||
| er.Message = err.Error() | ||
| } | ||
|
|
||
| if v, ok := err.(WithStatusCode); ok { | ||
| er.Status = v.StatusCode() | ||
| } | ||
|
|
||
| if v, ok := err.(WithJSONPointer); ok { | ||
| er.Status = http.StatusBadRequest | ||
| er.Code = "InvalidParameter" | ||
| er.Pointer = v.JSONPointer() | ||
| } | ||
|
|
||
| if v, ok := err.(WithErrCode); ok { | ||
| er.Code = v.ErrCode() | ||
| } | ||
|
|
||
| if er.Code == "" { | ||
| rv := reflect.TypeOf(err) | ||
| for rv.Kind() == reflect.Ptr { | ||
| rv = rv.Elem() | ||
| } | ||
|
|
||
| if ast.IsExported(rv.Name()) { | ||
| if p := rv.PkgPath(); p != "" { | ||
| er.Code = filepath.Base(p) + "." + rv.Name() | ||
| } else { | ||
| er.Code = rv.Name() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| if er.Code == "" { | ||
| er.Code = "InternalServerError" | ||
| } | ||
|
|
||
| if er.Status == 0 { | ||
| er.Status = http.StatusInternalServerError | ||
| } | ||
|
|
||
| return er | ||
| } |
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