feat: add web context and add go net/http web context

ctx/go-http-context/response.go

@@ -0,0 +1,65 @@
+package go_http_context
+
+import (
+	"encoding/json"
+	"github.com/weloe/token-go/ctx"
+	"net/http"
+)
+
+var _ ctx.Response = (*HttpResponse)(nil)
+
+type HttpResponse struct {
+	*ctx.DefaultRespImplement
+	req    *http.Request
+	writer http.ResponseWriter
+}
+
+func NewResponse(req *http.Request, writer http.ResponseWriter) *HttpResponse {
+	return &HttpResponse{
+		DefaultRespImplement: &ctx.DefaultRespImplement{},
+		req:                  req,
+		writer:               writer,
+	}
+}
+
+func (r *HttpResponse) Source() interface{} {
+	return r.writer
+}
+
+func (r *HttpResponse) SetHeader(name string, value string) {
+	r.writer.Header().Set(name, value)
+}
+
+func (r *HttpResponse) AddHeader(name string, value string) {
+	r.writer.Header().Add(name, value)
+}
+
+func (r *HttpResponse) Redirect(url string) {
+	http.Redirect(r.writer, r.req, url, http.StatusTemporaryRedirect)
+}
+
+func (r *HttpResponse) Status(status int) {
+	r.writer.WriteHeader(status)
+}
+
+// JSON response json data
+func (r *HttpResponse) JSON(code int, obj interface{}) {
+	r.SetHeader("Content-Type", "application/json")
+	r.Status(code)
+
+	encoder := json.NewEncoder(r.writer)
+	if err := encoder.Encode(obj); err != nil {
+		http.Error(r.writer, err.Error(), 500)
+	}
+}
+
+// HTML response .html
+func (r *HttpResponse) HTML(code int, html string) error {
+	r.SetHeader("Content-Type", "text/html")
+	r.Status(code)
+	_, err := r.writer.Write([]byte(html))
+	if err != nil {
+		return err
+	}
+	return nil
+}