fea: support import profile from openvpn client

pkg/api/openapi.go

@@ -0,0 +1,70 @@
+package api
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/gorilla/mux"
+	"github.com/luscis/openlan/pkg/cache"
+)
+
+type OpenAPI struct {
+}
+
+func (h OpenAPI) Router(router *mux.Router) {
+	router.HandleFunc("/openvpn-api/profile", h.Get).Methods("HEAD")
+	router.HandleFunc("/rest/{action}", h.Rest).Methods("GET")
+}
+
+func (h OpenAPI) Get(w http.ResponseWriter, r *http.Request) {
+	w.Write([]byte("TODO"))
+}
+
+func GetNetwork(name string) string {
+	values := strings.SplitN(name, "@", 2)
+	if len(values) < 2 {
+		return "default"
+	}
+	return values[1]
+}
+
+func (h OpenAPI) Error(w http.ResponseWriter, kind, message string) {
+	w.Header().Set("Content-Type", "text/xml")
+	context := fmt.Sprintf(`<?xml version="1.0" encoding="UTF-8"?>
+<Error>
+	<Type>%s</Type>
+	<Synopsis>REST method failed</Synopsis>
+	<Message>%s</Message>
+</Error>
+`, kind, message)
+	_, _ = w.Write([]byte(context))
+}
+
+func (h OpenAPI) Rest(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+
+	user, pass, ok := r.BasicAuth()
+	if !ok {
+		h.Error(w, "Authorization Required", "AUTH: not have auth")
+		return
+	}
+	if UserCheck(user, pass) != nil {
+		h.Error(w, "Authorization Required", "AUTH: wrong username or password")
+		return
+	}
+
+	name := GetNetwork(user)
+	server := strings.SplitN(r.Host, ":", 2)[0]
+
+	data, _ := cache.VPNClient.GetClientProfile(name, server)
+
+	action := vars["action"]
+	if action == "GetUserlogin" {
+		w.Header().Set("Content-Type", "text/plain")
+		_, _ = w.Write([]byte(data))
+	} else {
+		h.Error(w, "Internal Server Error", "ACTION: not support "+action)
+		return
+	}
+}