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utils/transport/v1/http/response.go

209 lines
5.4 KiB

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package http
import (
"encoding/hex"
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"fmt"
"gitea.drugeyes.vip/pharnexbase/utils/enum"
transPbV1 "gitea.drugeyes.vip/pharnexbase/utils/transport/v1"
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"github.com/go-kratos/kratos/v2/errors"
"github.com/go-kratos/kratos/v2/transport/http"
"github.com/tjfoc/gmsm/sm4"
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stdhttp "net/http"
"strings"
)
const (
baseContentType = "application"
)
var ErrInternalServer = errors.InternalServer("InternalServerError", "服务错误")
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type Response struct {
Code int `json:"code" form:"code"`
Data interface{} `json:"data" form:"data"`
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Reason string `json:"reason" form:"reason"`
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Message string `json:"message" form:"message"`
}
func (t *Transport) ResponseEncoder() http.EncodeResponseFunc {
return func(w stdhttp.ResponseWriter, r *stdhttp.Request, v interface{}) error {
if v == nil {
return nil
}
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// 重定向
if rd, ok := v.(http.Redirector); ok {
url, code := rd.Redirect()
stdhttp.Redirect(w, r, url, code)
return nil
}
// 文件下载
if data, ok := v.(*transPbV1.FileResponse); ok {
w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", data.Filename))
if data.Filetype != "" {
w.Header().Set("Content-Type", data.Filetype)
}
w.Header().Set("Access-Control-Expose-Headers", "*")
w.WriteHeader(stdhttp.StatusOK)
w.Write(data.Data)
return nil
}
codec, _ := http.CodecForRequest(r, "Accept")
data, err := codec.Marshal(v)
if err != nil {
return err
}
w.Header().Set("Content-Type", ContentType(codec.Name()))
w.Header().Set("Access-Control-Expose-Headers", "Traceid, En ,Content-Disposition, Authorization")
d := fmt.Sprintf(`{"code": 200,"data": %s,"reason": "","message": ""}`, string(data))
_, err = w.Write([]byte(d))
if err != nil {
return err
}
return nil
}
}
func (t *Transport) ResponseEncoderWithEncrypt() http.EncodeResponseFunc {
return func(w stdhttp.ResponseWriter, r *stdhttp.Request, v interface{}) error {
if v == nil {
return nil
}
// 重定向
if rd, ok := v.(http.Redirector); ok {
url, code := rd.Redirect()
stdhttp.Redirect(w, r, url, code)
return nil
}
// 文件下载
if data, ok := v.(*transPbV1.FileResponse); ok {
w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", data.Filename))
if data.Filetype != "" {
w.Header().Set("Content-Type", data.Filetype)
}
w.Header().Set("Access-Control-Expose-Headers", "*")
w.WriteHeader(stdhttp.StatusOK)
w.Write(data.Data)
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return nil
}
codec, _ := http.CodecForRequest(r, "Accept")
data, err := codec.Marshal(v)
if err != nil {
return err
}
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dataRes := string(data)
// 正式服加密
if t.env == enum.Env_production {
ecbMsg, err := sm4.Sm4Ecb([]byte(t.sm4Key), data, true)
if err == nil {
dataRes = fmt.Sprintf("\"%s\"", hex.EncodeToString(ecbMsg))
w.Header().Set("en", "4")
}
}
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w.Header().Set("Content-Type", ContentType(codec.Name()))
w.Header().Set("Access-Control-Expose-Headers", "Traceid, En ,Content-Disposition, Authorization")
d := fmt.Sprintf(`{"code": 200,"data": %s,"reason": "","message": ""}`, dataRes)
_, err = w.Write([]byte(d))
if err != nil {
return err
}
return nil
}
}
func (t *Transport) ResponseEncoderWithEncryptFilter(noEncrypt map[string]bool) http.EncodeResponseFunc {
return func(w stdhttp.ResponseWriter, r *stdhttp.Request, v interface{}) error {
if v == nil {
return nil
}
// 重定向
if rd, ok := v.(http.Redirector); ok {
url, code := rd.Redirect()
stdhttp.Redirect(w, r, url, code)
return nil
}
// 文件下载
if data, ok := v.(*transPbV1.FileResponse); ok {
w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", data.Filename))
if data.Filetype != "" {
w.Header().Set("Content-Type", data.Filetype)
}
w.Header().Set("Access-Control-Expose-Headers", "*")
w.WriteHeader(stdhttp.StatusOK)
w.Write(data.Data)
return nil
}
codec, _ := http.CodecForRequest(r, "Accept")
data, err := codec.Marshal(v)
if err != nil {
return err
}
dataRes := string(data)
// 正式服加密
if t.env == enum.Env_production && !noEncrypt[r.URL.Path] {
ecbMsg, err := sm4.Sm4Ecb([]byte(t.sm4Key), data, true)
if err == nil {
dataRes = fmt.Sprintf("\"%s\"", hex.EncodeToString(ecbMsg))
w.Header().Set("en", "4")
}
}
w.Header().Set("Content-Type", ContentType(codec.Name()))
w.Header().Set("Access-Control-Expose-Headers", "Traceid, En ,Content-Disposition, Authorization")
d := fmt.Sprintf(`{"code": 200,"data": %s,"reason": "","message": ""}`, dataRes)
_, err = w.Write([]byte(d))
if err != nil {
return err
}
return nil
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}
}
func (t *Transport) ErrorEncoder() http.EncodeErrorFunc {
return func(w stdhttp.ResponseWriter, r *stdhttp.Request, err error) {
se := errors.FromError(err)
if t.env == enum.Env_production {
if _, ok := err.(*errors.Error); !ok {
se = ErrInternalServer
}
}
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codec, _ := http.CodecForRequest(r, "Accept")
body, err := codec.Marshal(se)
if err != nil {
w.WriteHeader(stdhttp.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", ContentType(codec.Name()))
w.Header().Set("Access-Control-Expose-Headers", "TraceID, En ,Content-Disposition, Authorization")
w.WriteHeader(int(se.Code))
_, _ = w.Write(body)
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}
}
// ContentType returns the content-type with base prefix.
func ContentType(subtype string) string {
return strings.Join([]string{baseContentType, subtype}, "/")
}