98 lines
2.1 KiB
Go
98 lines
2.1 KiB
Go
package render
|
|
|
|
import (
|
|
"encoding/json"
|
|
"encoding/xml"
|
|
"fmt"
|
|
"html/template"
|
|
"net/http"
|
|
)
|
|
|
|
type (
|
|
Render interface {
|
|
Render(http.ResponseWriter, int, ...interface{}) error
|
|
}
|
|
|
|
// JSON binding
|
|
jsonRender struct{}
|
|
|
|
// XML binding
|
|
xmlRender struct{}
|
|
|
|
// Plain text
|
|
plainRender struct{}
|
|
|
|
// Redirects
|
|
redirectRender struct{}
|
|
|
|
// Redirects
|
|
htmlDebugRender struct{}
|
|
|
|
// form binding
|
|
HTMLRender struct {
|
|
Template *template.Template
|
|
}
|
|
)
|
|
|
|
var (
|
|
JSON = jsonRender{}
|
|
XML = xmlRender{}
|
|
Plain = plainRender{}
|
|
Redirect = redirectRender{}
|
|
HTMLDebug = htmlDebugRender{}
|
|
)
|
|
|
|
func writeHeader(w http.ResponseWriter, code int, contentType string) {
|
|
w.Header().Set("Content-Type", contentType)
|
|
w.WriteHeader(code)
|
|
}
|
|
|
|
func (_ jsonRender) Render(w http.ResponseWriter, code int, data ...interface{}) error {
|
|
writeHeader(w, code, "application/json")
|
|
encoder := json.NewEncoder(w)
|
|
return encoder.Encode(data[0])
|
|
}
|
|
|
|
func (_ redirectRender) Render(w http.ResponseWriter, code int, data ...interface{}) error {
|
|
w.Header().Set("Location", data[0].(string))
|
|
w.WriteHeader(code)
|
|
return nil
|
|
}
|
|
|
|
func (_ xmlRender) Render(w http.ResponseWriter, code int, data ...interface{}) error {
|
|
writeHeader(w, code, "application/xml")
|
|
encoder := xml.NewEncoder(w)
|
|
return encoder.Encode(data[0])
|
|
}
|
|
|
|
func (_ plainRender) Render(w http.ResponseWriter, code int, data ...interface{}) error {
|
|
writeHeader(w, code, "text/plain")
|
|
format := data[0].(string)
|
|
args := data[1].([]interface{})
|
|
var err error
|
|
if len(args) > 0 {
|
|
_, err = w.Write([]byte(fmt.Sprintf(format, args...)))
|
|
} else {
|
|
_, err = w.Write([]byte(format))
|
|
}
|
|
return err
|
|
}
|
|
|
|
func (_ htmlDebugRender) Render(w http.ResponseWriter, code int, data ...interface{}) error {
|
|
writeHeader(w, code, "text/html")
|
|
file := data[0].(string)
|
|
obj := data[1]
|
|
t, err := template.ParseFiles(file)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return t.ExecuteTemplate(w, file, obj)
|
|
}
|
|
|
|
func (html HTMLRender) Render(w http.ResponseWriter, code int, data ...interface{}) error {
|
|
writeHeader(w, code, "text/html")
|
|
file := data[0].(string)
|
|
obj := data[1]
|
|
return html.Template.ExecuteTemplate(w, file, obj)
|
|
}
|