hotime/vendor/github.com/silenceper/wechat/v2/officialaccount/server/util.go

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2022-05-24 05:49:25 +00:00
package server
import (
"encoding/xml"
"net/http"
)
var xmlContentType = []string{"application/xml; charset=utf-8"}
var plainContentType = []string{"text/plain; charset=utf-8"}
func writeContextType(w http.ResponseWriter, value []string) {
header := w.Header()
if val := header["Content-Type"]; len(val) == 0 {
header["Content-Type"] = value
}
}
// Render render from bytes
func (srv *Server) Render(bytes []byte) {
// debug
// fmt.Println("response msg = ", string(bytes))
srv.Writer.WriteHeader(200)
_, err := srv.Writer.Write(bytes)
if err != nil {
panic(err)
}
}
// String render from string
func (srv *Server) String(str string) {
writeContextType(srv.Writer, plainContentType)
srv.Render([]byte(str))
}
// XML render to xml
func (srv *Server) XML(obj interface{}) {
writeContextType(srv.Writer, xmlContentType)
bytes, err := xml.Marshal(obj)
if err != nil {
panic(err)
}
srv.Render(bytes)
}
// Query returns the keyed url query value if it exists
func (srv *Server) Query(key string) string {
value, _ := srv.GetQuery(key)
return value
}
// GetQuery is like Query(), it returns the keyed url query value
func (srv *Server) GetQuery(key string) (string, bool) {
req := srv.Request
if values, ok := req.URL.Query()[key]; ok && len(values) > 0 {
return values[0], true
}
return "", false
}