102 lines
2.1 KiB
Go
102 lines
2.1 KiB
Go
package view
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"local/dndex/config"
|
|
"local/dndex/storage"
|
|
"local/gziphttp"
|
|
"log"
|
|
"net/http"
|
|
"strings"
|
|
)
|
|
|
|
func JSON(g storage.Graph) error {
|
|
port := config.New().Port
|
|
log.Println("listening on", port)
|
|
err := http.ListenAndServe(fmt.Sprintf(":%d", port), jsonHandler(g))
|
|
return err
|
|
}
|
|
|
|
func jsonHandler(g storage.Graph) http.Handler {
|
|
mux := http.NewServeMux()
|
|
|
|
routes := []struct {
|
|
path string
|
|
foo func(g storage.Graph, w http.ResponseWriter, r *http.Request) error
|
|
noauth bool
|
|
}{
|
|
{
|
|
path: "/port",
|
|
foo: port,
|
|
},
|
|
{
|
|
path: "/who",
|
|
foo: who,
|
|
},
|
|
{
|
|
path: "/register",
|
|
foo: register,
|
|
noauth: true,
|
|
},
|
|
{
|
|
path: config.New().FilePrefix + "/",
|
|
foo: files,
|
|
},
|
|
}
|
|
|
|
for _, route := range routes {
|
|
foo := route.foo
|
|
auth := !route.noauth
|
|
mux.HandleFunc(route.path, func(w http.ResponseWriter, r *http.Request) {
|
|
if auth {
|
|
if err := Auth(g, w, r); err != nil {
|
|
return
|
|
}
|
|
}
|
|
if err := foo(g, w, r); err != nil {
|
|
status := http.StatusInternalServerError
|
|
if strings.Contains(err.Error(), "collision") {
|
|
status = http.StatusConflict
|
|
}
|
|
b, _ := json.Marshal(map[string]string{"error": err.Error()})
|
|
http.Error(w, string(b), status)
|
|
}
|
|
})
|
|
}
|
|
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
if gziphttp.Can(r) {
|
|
gz := gziphttp.New(w)
|
|
defer gz.Close()
|
|
w = gz
|
|
}
|
|
mux.ServeHTTP(w, r)
|
|
})
|
|
}
|
|
|
|
func getAuthNamespace(r *http.Request) (string, error) {
|
|
namespace, err := getNamespace(r)
|
|
return strings.Join([]string{namespace, AuthKey}, "."), err
|
|
}
|
|
|
|
func getNamespace(r *http.Request) (string, error) {
|
|
if strings.HasPrefix(r.URL.Path, config.New().FilePrefix) {
|
|
path := strings.TrimPrefix(r.URL.Path, config.New().FilePrefix+"/")
|
|
if path == r.URL.Path {
|
|
return "", errors.New("no namespace on files")
|
|
}
|
|
path = strings.Split(path, "/")[0]
|
|
if path == "" {
|
|
return "", errors.New("empty namespace on files")
|
|
}
|
|
return path, nil
|
|
}
|
|
namespace := r.URL.Query().Get("namespace")
|
|
if len(namespace) == 0 {
|
|
return "", errors.New("no namespace found")
|
|
}
|
|
return namespace, nil
|
|
}
|