You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
2.5 KiB
89 lines
2.5 KiB
package http
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"net/http"
|
|
|
|
"github.com/go-kratos/kratos/v2/encoding"
|
|
"github.com/go-kratos/kratos/v2/errors"
|
|
"github.com/go-kratos/kratos/v2/internal/httputil"
|
|
"github.com/go-kratos/kratos/v2/transport/http/binding"
|
|
)
|
|
|
|
// SupportPackageIsVersion1 These constants should not be referenced from any other code.
|
|
const SupportPackageIsVersion1 = true
|
|
|
|
// DecodeRequestFunc is decode request func.
|
|
type DecodeRequestFunc func(*http.Request, interface{}) error
|
|
|
|
// EncodeResponseFunc is encode response func.
|
|
type EncodeResponseFunc func(http.ResponseWriter, *http.Request, interface{}) error
|
|
|
|
// EncodeErrorFunc is encode error func.
|
|
type EncodeErrorFunc func(http.ResponseWriter, *http.Request, error)
|
|
|
|
// DefaultRequestDecoder decodes the request body to object.
|
|
func DefaultRequestDecoder(r *http.Request, v interface{}) error {
|
|
codec, ok := CodecForRequest(r, "Content-Type")
|
|
if ok {
|
|
data, err := ioutil.ReadAll(r.Body)
|
|
if err != nil {
|
|
return errors.BadRequest("CODEC", err.Error())
|
|
}
|
|
if err := codec.Unmarshal(data, v); err != nil {
|
|
return errors.BadRequest("CODEC", err.Error())
|
|
}
|
|
} else {
|
|
if err := binding.BindForm(r, v); err != nil {
|
|
return errors.BadRequest("CODEC", err.Error())
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// DefaultResponseEncoder encodes the object to the HTTP response.
|
|
func DefaultResponseEncoder(w http.ResponseWriter, r *http.Request, v interface{}) error {
|
|
codec, _ := CodecForRequest(r, "Accept")
|
|
data, err := codec.Marshal(v)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
w.Header().Set("Content-Type", httputil.ContentType(codec.Name()))
|
|
if sc, ok := v.(interface {
|
|
StatusCode() int
|
|
}); ok {
|
|
w.WriteHeader(sc.StatusCode())
|
|
}
|
|
_, _ = w.Write(data)
|
|
return nil
|
|
}
|
|
|
|
// DefaultErrorEncoder encodes the error to the HTTP response.
|
|
func DefaultErrorEncoder(w http.ResponseWriter, r *http.Request, se error) {
|
|
codec, _ := CodecForRequest(r, "Accept")
|
|
body, err := codec.Marshal(se)
|
|
if err != nil {
|
|
w.WriteHeader(http.StatusInternalServerError)
|
|
return
|
|
}
|
|
w.Header().Set("Content-Type", httputil.ContentType(codec.Name()))
|
|
if sc, ok := se.(interface {
|
|
StatusCode() int
|
|
}); ok {
|
|
w.WriteHeader(sc.StatusCode())
|
|
} else {
|
|
w.WriteHeader(http.StatusInternalServerError)
|
|
}
|
|
w.Write(body)
|
|
}
|
|
|
|
// CodecForRequest get encoding.Codec via http.Request
|
|
func CodecForRequest(r *http.Request, name string) (encoding.Codec, bool) {
|
|
for _, accept := range r.Header[name] {
|
|
codec := encoding.GetCodec(httputil.ContentSubtype(accept))
|
|
if codec != nil {
|
|
return codec, true
|
|
}
|
|
}
|
|
return encoding.GetCodec("json"), false
|
|
}
|
|
|