669 lines
21 KiB
Go
669 lines
21 KiB
Go
package handler
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import (
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"encoding/base64"
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"encoding/json"
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"fmt"
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"net/http"
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"sort"
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"strings"
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"time"
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rice "github.com/GeertJohan/go.rice"
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"github.com/gorilla/sessions"
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"github.com/labstack/echo-contrib/session"
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"github.com/labstack/echo/v4"
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"github.com/labstack/gommon/log"
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"github.com/rs/xid"
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"golang.zx2c4.com/wireguard/wgctrl"
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"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
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"github.com/ngoduykhanh/wireguard-ui/emailer"
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"github.com/ngoduykhanh/wireguard-ui/model"
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"github.com/ngoduykhanh/wireguard-ui/store"
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"github.com/ngoduykhanh/wireguard-ui/util"
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)
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// LoginPage handler
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func LoginPage() echo.HandlerFunc {
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return func(c echo.Context) error {
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return c.Render(http.StatusOK, "login.html", map[string]interface{}{})
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}
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}
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// Login for signing in handler
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func Login(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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user := new(model.User)
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c.Bind(user)
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dbuser, err := db.GetUser()
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if err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Cannot query user from DB"})
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}
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if user.Username == dbuser.Username && user.Password == dbuser.Password {
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// TODO: refresh the token
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sess, _ := session.Get("session", c)
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sess.Options = &sessions.Options{
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Path: "/",
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MaxAge: 86400,
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HttpOnly: true,
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}
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// set session_token
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tokenUID := xid.New().String()
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sess.Values["username"] = user.Username
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sess.Values["session_token"] = tokenUID
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sess.Save(c.Request(), c.Response())
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// set session_token in cookie
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cookie := new(http.Cookie)
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cookie.Name = "session_token"
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cookie.Value = tokenUID
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cookie.Expires = time.Now().Add(24 * time.Hour)
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c.SetCookie(cookie)
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return c.JSON(http.StatusOK, jsonHTTPResponse{true, "Logged in successfully"})
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}
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return c.JSON(http.StatusUnauthorized, jsonHTTPResponse{false, "Invalid credentials"})
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}
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}
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// Logout to log a user out
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func Logout() echo.HandlerFunc {
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return func(c echo.Context) error {
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clearSession(c)
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return c.Redirect(http.StatusTemporaryRedirect, "/login")
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}
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}
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// WireGuardClients handler
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func WireGuardClients(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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clientDataList, err := db.GetClients(true)
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if err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{
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false, fmt.Sprintf("Cannot get client list: %v", err),
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})
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}
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return c.Render(http.StatusOK, "clients.html", map[string]interface{}{
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"baseData": model.BaseData{Active: "", CurrentUser: currentUser(c)},
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"clientDataList": clientDataList,
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})
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}
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}
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// GetClients handler return a list of Wireguard client data
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func GetClients(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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clientDataList, err := db.GetClients(true)
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if err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{
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false, fmt.Sprintf("Cannot get client list: %v", err),
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})
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}
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return c.JSON(http.StatusOK, clientDataList)
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}
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}
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// GetClient handler return a of Wireguard client data
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func GetClient(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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clientID := c.Param("id")
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clientData, err := db.GetClientByID(clientID, true)
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if err != nil {
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return c.JSON(http.StatusNotFound, jsonHTTPResponse{false, "Client not found"})
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}
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return c.JSON(http.StatusOK, clientData)
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}
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}
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// NewClient handler
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func NewClient(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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var client model.Client
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c.Bind(&client)
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// read server information
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server, err := db.GetServer()
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if err != nil {
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log.Error("Cannot fetch server from database: ", err)
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, err.Error()})
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}
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// validate the input Allocation IPs
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allocatedIPs, err := util.GetAllocatedIPs("")
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check, err := util.ValidateIPAllocation(server.Interface.Addresses, allocatedIPs, client.AllocatedIPs)
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if !check {
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return c.JSON(http.StatusBadRequest, jsonHTTPResponse{false, fmt.Sprintf("%s", err)})
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}
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// validate the input AllowedIPs
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if util.ValidateAllowedIPs(client.AllowedIPs) == false {
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log.Warnf("Invalid Allowed IPs input from user: %v", client.AllowedIPs)
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return c.JSON(http.StatusBadRequest, jsonHTTPResponse{false, "Allowed IPs must be in CIDR format"})
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}
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// gen ID
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guid := xid.New()
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client.ID = guid.String()
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// gen Wireguard key pair
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key, err := wgtypes.GeneratePrivateKey()
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if err != nil {
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log.Error("Cannot generate wireguard key pair: ", err)
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Cannot generate Wireguard key pair"})
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}
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presharedKey, err := wgtypes.GenerateKey()
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if err != nil {
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log.Error("Cannot generated preshared key: ", err)
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{
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false, "Cannot generate Wireguard preshared key",
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})
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}
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client.PrivateKey = key.String()
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client.PublicKey = key.PublicKey().String()
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client.PresharedKey = presharedKey.String()
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client.CreatedAt = time.Now().UTC()
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client.UpdatedAt = client.CreatedAt
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// write client to the database
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if err := db.SaveClient(client); err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{
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false, err.Error(),
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})
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}
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log.Infof("Created wireguard client: %v", client)
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return c.JSON(http.StatusOK, client)
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}
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}
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// EmailClient handler to sent the configuration via email
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func EmailClient(db store.IStore, mailer emailer.Emailer, emailSubject, emailContent string) echo.HandlerFunc {
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type clientIdEmailPayload struct {
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ID string `json:"id"`
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Email string `json:"email"`
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}
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return func(c echo.Context) error {
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var payload clientIdEmailPayload
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c.Bind(&payload)
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// TODO validate email
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clientData, err := db.GetClientByID(payload.ID, true)
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if err != nil {
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log.Errorf("Cannot generate client id %s config file for downloading: %v", payload.ID, err)
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return c.JSON(http.StatusNotFound, jsonHTTPResponse{false, "Client not found"})
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}
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// build config
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server, _ := db.GetServer()
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globalSettings, _ := db.GetGlobalSettings()
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config := util.BuildClientConfig(*clientData.Client, server, globalSettings)
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cfg_att := emailer.Attachment{"wg0.conf", []byte(config)}
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qrdata, err := base64.StdEncoding.DecodeString(strings.TrimPrefix(clientData.QRCode, "data:image/png;base64,"))
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if err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "decoding: " + err.Error()})
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}
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qr_att := emailer.Attachment{"wg.png", qrdata}
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err = mailer.Send(
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clientData.Client.Name,
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payload.Email,
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emailSubject,
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emailContent,
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[]emailer.Attachment{cfg_att, qr_att},
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)
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if err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, err.Error()})
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}
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return c.JSON(http.StatusOK, jsonHTTPResponse{true, "Email sent successfully"})
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}
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}
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// UpdateClient handler to update client information
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func UpdateClient(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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var _client model.Client
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c.Bind(&_client)
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// validate client existence
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clientData, err := db.GetClientByID(_client.ID, false)
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if err != nil {
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return c.JSON(http.StatusNotFound, jsonHTTPResponse{false, "Client not found"})
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}
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server, err := db.GetServer()
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if err != nil {
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return c.JSON(http.StatusBadRequest, jsonHTTPResponse{
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false, fmt.Sprintf("Cannot fetch server config: %s", err),
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})
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}
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client := *clientData.Client
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// validate the input Allocation IPs
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allocatedIPs, err := util.GetAllocatedIPs(client.ID)
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check, err := util.ValidateIPAllocation(server.Interface.Addresses, allocatedIPs, _client.AllocatedIPs)
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if !check {
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return c.JSON(http.StatusBadRequest, jsonHTTPResponse{false, fmt.Sprintf("%s", err)})
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}
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// validate the input AllowedIPs
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if util.ValidateAllowedIPs(_client.AllowedIPs) == false {
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log.Warnf("Invalid Allowed IPs input from user: %v", _client.AllowedIPs)
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return c.JSON(http.StatusBadRequest, jsonHTTPResponse{false, "Allowed IPs must be in CIDR format"})
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}
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// map new data
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client.Name = _client.Name
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client.Email = _client.Email
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client.Enabled = _client.Enabled
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client.UseServerDNS = _client.UseServerDNS
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client.AllocatedIPs = _client.AllocatedIPs
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client.AllowedIPs = _client.AllowedIPs
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client.UpdatedAt = time.Now().UTC()
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// write to the database
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if err := db.SaveClient(client); err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, err.Error()})
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}
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log.Infof("Updated client information successfully => %v", client)
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return c.JSON(http.StatusOK, jsonHTTPResponse{true, "Updated client successfully"})
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}
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}
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// SetClientStatus handler to enable / disable a client
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func SetClientStatus(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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data := make(map[string]interface{})
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err := json.NewDecoder(c.Request().Body).Decode(&data)
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if err != nil {
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return c.JSON(http.StatusBadRequest, jsonHTTPResponse{false, "Bad post data"})
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}
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clientID := data["id"].(string)
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status := data["status"].(bool)
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clientdata, err := db.GetClientByID(clientID, false)
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if err != nil {
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return c.JSON(http.StatusNotFound, jsonHTTPResponse{false, err.Error()})
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}
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client := *clientdata.Client
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client.Enabled = status
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if err := db.SaveClient(client); err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, err.Error()})
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}
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log.Infof("Changed client %s enabled status to %v", client.ID, status)
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return c.JSON(http.StatusOK, jsonHTTPResponse{true, "Changed client status successfully"})
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}
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}
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// DownloadClient handler
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func DownloadClient(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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clientID := c.QueryParam("clientid")
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if clientID == "" {
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return c.JSON(http.StatusNotFound, jsonHTTPResponse{false, "Missing clientid parameter"})
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}
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clientData, err := db.GetClientByID(clientID, false)
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if err != nil {
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log.Errorf("Cannot generate client id %s config file for downloading: %v", clientID, err)
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return c.JSON(http.StatusNotFound, jsonHTTPResponse{false, "Client not found"})
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}
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// build config
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server, err := db.GetServer()
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if err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, err.Error()})
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}
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globalSettings, err := db.GetGlobalSettings()
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if err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, err.Error()})
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}
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config := util.BuildClientConfig(*clientData.Client, server, globalSettings)
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// create io reader from string
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reader := strings.NewReader(config)
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// set response header for downloading
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c.Response().Header().Set(echo.HeaderContentDisposition, fmt.Sprintf("attachment; filename=%s.conf", clientData.Client.Name))
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return c.Stream(http.StatusOK, "text/plain", reader)
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}
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}
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// RemoveClient handler
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func RemoveClient(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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client := new(model.Client)
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c.Bind(client)
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// delete client from database
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if err := db.DeleteClient(client.ID); err != nil {
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log.Error("Cannot delete wireguard client: ", err)
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Cannot delete client from database"})
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}
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log.Infof("Removed wireguard client: %v", client)
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return c.JSON(http.StatusOK, jsonHTTPResponse{true, "Client removed"})
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}
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}
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// WireGuardServer handler
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func WireGuardServer(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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server, err := db.GetServer()
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if err != nil {
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log.Error("Cannot get server config: ", err)
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}
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return c.Render(http.StatusOK, "server.html", map[string]interface{}{
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"baseData": model.BaseData{Active: "wg-server", CurrentUser: currentUser(c)},
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"serverInterface": server.Interface,
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"serverKeyPair": server.KeyPair,
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})
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}
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}
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// WireGuardServerInterfaces handler
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func WireGuardServerInterfaces(db store.IStore) echo.HandlerFunc {
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return func(c echo.Context) error {
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var serverInterface model.ServerInterface
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c.Bind(&serverInterface)
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// validate the input addresses
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if util.ValidateServerAddresses(serverInterface.Addresses) == false {
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log.Warnf("Invalid server interface addresses input from user: %v", serverInterface.Addresses)
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return c.JSON(http.StatusBadRequest, jsonHTTPResponse{false, "Interface IP address must be in CIDR format"})
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}
|
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serverInterface.UpdatedAt = time.Now().UTC()
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// write config to the database
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if err := db.SaveServerInterface(serverInterface); err != nil {
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Interface IP address must be in CIDR format"})
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}
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log.Infof("Updated wireguard server interfaces settings: %v", serverInterface)
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return c.JSON(http.StatusOK, jsonHTTPResponse{true, "Updated interface addresses successfully"})
|
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}
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}
|
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|
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// WireGuardServerKeyPair handler to generate private and public keys
|
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func WireGuardServerKeyPair(db store.IStore) echo.HandlerFunc {
|
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return func(c echo.Context) error {
|
|
|
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// gen Wireguard key pair
|
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key, err := wgtypes.GeneratePrivateKey()
|
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if err != nil {
|
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log.Error("Cannot generate wireguard key pair: ", err)
|
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Cannot generate Wireguard key pair"})
|
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}
|
|
|
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var serverKeyPair model.ServerKeypair
|
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serverKeyPair.PrivateKey = key.String()
|
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serverKeyPair.PublicKey = key.PublicKey().String()
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serverKeyPair.UpdatedAt = time.Now().UTC()
|
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|
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if err := db.SaveServerKeyPair(serverKeyPair); err != nil {
|
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return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Cannot generate Wireguard key pair"})
|
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}
|
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log.Infof("Updated wireguard server interfaces settings: %v", serverKeyPair)
|
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|
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return c.JSON(http.StatusOK, serverKeyPair)
|
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}
|
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}
|
|
|
|
// GlobalSettings handler
|
|
func GlobalSettings(db store.IStore) echo.HandlerFunc {
|
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return func(c echo.Context) error {
|
|
|
|
globalSettings, err := db.GetGlobalSettings()
|
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if err != nil {
|
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log.Error("Cannot get global settings: ", err)
|
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}
|
|
|
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return c.Render(http.StatusOK, "global_settings.html", map[string]interface{}{
|
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"baseData": model.BaseData{Active: "global-settings", CurrentUser: currentUser(c)},
|
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"globalSettings": globalSettings,
|
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})
|
|
}
|
|
}
|
|
|
|
// Status handler
|
|
func Status(db store.IStore) echo.HandlerFunc {
|
|
type PeerVM struct {
|
|
Name string
|
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Email string
|
|
PublicKey string
|
|
ReceivedBytes int64
|
|
TransmitBytes int64
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|
LastHandshakeTime time.Time
|
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LastHandshakeRel time.Duration
|
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Connected bool
|
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}
|
|
|
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type DeviceVM struct {
|
|
Name string
|
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Peers []PeerVM
|
|
}
|
|
return func(c echo.Context) error {
|
|
|
|
wgclient, err := wgctrl.New()
|
|
if err != nil {
|
|
return c.Render(http.StatusInternalServerError, "status.html", map[string]interface{}{
|
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"baseData": model.BaseData{Active: "status", CurrentUser: currentUser(c)},
|
|
"error": err.Error(),
|
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"devices": nil,
|
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})
|
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}
|
|
|
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devices, err := wgclient.Devices()
|
|
if err != nil {
|
|
return c.Render(http.StatusInternalServerError, "status.html", map[string]interface{}{
|
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"baseData": model.BaseData{Active: "status", CurrentUser: currentUser(c)},
|
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"error": err.Error(),
|
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"devices": nil,
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})
|
|
}
|
|
|
|
devicesVm := make([]DeviceVM, 0, len(devices))
|
|
if len(devices) > 0 {
|
|
m := make(map[string]*model.Client)
|
|
clients, err := db.GetClients(false)
|
|
if err != nil {
|
|
return c.Render(http.StatusInternalServerError, "status.html", map[string]interface{}{
|
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"baseData": model.BaseData{Active: "status", CurrentUser: currentUser(c)},
|
|
"error": err.Error(),
|
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"devices": nil,
|
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})
|
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}
|
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for i := range clients {
|
|
if clients[i].Client != nil {
|
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m[clients[i].Client.PublicKey] = clients[i].Client
|
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}
|
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}
|
|
|
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conv := map[bool]int{true: 1, false: 0}
|
|
for i := range devices {
|
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devVm := DeviceVM{Name: devices[i].Name}
|
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for j := range devices[i].Peers {
|
|
pVm := PeerVM{
|
|
PublicKey: devices[i].Peers[j].PublicKey.String(),
|
|
ReceivedBytes: devices[i].Peers[j].ReceiveBytes,
|
|
TransmitBytes: devices[i].Peers[j].TransmitBytes,
|
|
LastHandshakeTime: devices[i].Peers[j].LastHandshakeTime,
|
|
LastHandshakeRel: time.Since(devices[i].Peers[j].LastHandshakeTime),
|
|
}
|
|
pVm.Connected = pVm.LastHandshakeRel.Minutes() < 3.
|
|
|
|
if _client, ok := m[pVm.PublicKey]; ok {
|
|
pVm.Name = _client.Name
|
|
pVm.Email = _client.Email
|
|
}
|
|
devVm.Peers = append(devVm.Peers, pVm)
|
|
}
|
|
sort.SliceStable(devVm.Peers, func(i, j int) bool { return devVm.Peers[i].Name < devVm.Peers[j].Name })
|
|
sort.SliceStable(devVm.Peers, func(i, j int) bool { return conv[devVm.Peers[i].Connected] > conv[devVm.Peers[j].Connected] })
|
|
devicesVm = append(devicesVm, devVm)
|
|
}
|
|
}
|
|
|
|
return c.Render(http.StatusOK, "status.html", map[string]interface{}{
|
|
"baseData": model.BaseData{Active: "status", CurrentUser: currentUser(c)},
|
|
"devices": devicesVm,
|
|
"error": "",
|
|
})
|
|
}
|
|
}
|
|
|
|
// GlobalSettingSubmit handler to update the global settings
|
|
func GlobalSettingSubmit(db store.IStore) echo.HandlerFunc {
|
|
return func(c echo.Context) error {
|
|
|
|
var globalSettings model.GlobalSetting
|
|
c.Bind(&globalSettings)
|
|
|
|
// validate the input dns server list
|
|
if util.ValidateIPAddressList(globalSettings.DNSServers) == false {
|
|
log.Warnf("Invalid DNS server list input from user: %v", globalSettings.DNSServers)
|
|
return c.JSON(http.StatusBadRequest, jsonHTTPResponse{false, "Invalid DNS server address"})
|
|
}
|
|
|
|
globalSettings.UpdatedAt = time.Now().UTC()
|
|
|
|
// write config to the database
|
|
if err := db.SaveGlobalSettings(globalSettings); err != nil {
|
|
return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Cannot generate Wireguard key pair"})
|
|
}
|
|
|
|
log.Infof("Updated global settings: %v", globalSettings)
|
|
|
|
return c.JSON(http.StatusOK, jsonHTTPResponse{true, "Updated global settings successfully"})
|
|
}
|
|
}
|
|
|
|
// MachineIPAddresses handler to get local interface ip addresses
|
|
func MachineIPAddresses() echo.HandlerFunc {
|
|
return func(c echo.Context) error {
|
|
|
|
// get private ip addresses
|
|
interfaceList, err := util.GetInterfaceIPs()
|
|
if err != nil {
|
|
return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Cannot get machine ip addresses"})
|
|
}
|
|
|
|
// get public ip address
|
|
// TODO: Remove the go-external-ip dependency
|
|
publicInterface, err := util.GetPublicIP()
|
|
if err != nil {
|
|
log.Warn("Cannot get machine public ip address: ", err)
|
|
} else {
|
|
// prepend public ip to the list
|
|
interfaceList = append([]model.Interface{publicInterface}, interfaceList...)
|
|
}
|
|
|
|
return c.JSON(http.StatusOK, interfaceList)
|
|
}
|
|
}
|
|
|
|
// SuggestIPAllocation handler to get the list of ip address for client
|
|
func SuggestIPAllocation(db store.IStore) echo.HandlerFunc {
|
|
return func(c echo.Context) error {
|
|
|
|
server, err := db.GetServer()
|
|
if err != nil {
|
|
log.Error("Cannot fetch server config from database: ", err)
|
|
return c.JSON(http.StatusBadRequest, jsonHTTPResponse{false, err.Error()})
|
|
}
|
|
|
|
// return the list of suggestedIPs
|
|
// we take the first available ip address from
|
|
// each server's network addresses.
|
|
suggestedIPs := make([]string, 0)
|
|
allocatedIPs, err := util.GetAllocatedIPs("")
|
|
if err != nil {
|
|
log.Error("Cannot suggest ip allocation. Failed to get list of allocated ip addresses: ", err)
|
|
return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{
|
|
false, "Cannot suggest ip allocation: failed to get list of allocated ip addresses",
|
|
})
|
|
}
|
|
for _, cidr := range server.Interface.Addresses {
|
|
ip, err := util.GetAvailableIP(cidr, allocatedIPs)
|
|
if err != nil {
|
|
log.Error("Failed to get available ip from a CIDR: ", err)
|
|
return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{
|
|
false,
|
|
fmt.Sprintf("Cannot suggest ip allocation: failed to get available ip from network %s", cidr),
|
|
})
|
|
}
|
|
if (strings.Contains(ip, ":")) {
|
|
suggestedIPs = append(suggestedIPs, fmt.Sprintf("%s/128", ip))
|
|
} else {
|
|
suggestedIPs = append(suggestedIPs, fmt.Sprintf("%s/32", ip))
|
|
}
|
|
}
|
|
|
|
return c.JSON(http.StatusOK, suggestedIPs)
|
|
}
|
|
}
|
|
|
|
// ApplyServerConfig handler to write config file and restart Wireguard server
|
|
func ApplyServerConfig(db store.IStore, tmplBox *rice.Box) echo.HandlerFunc {
|
|
return func(c echo.Context) error {
|
|
|
|
server, err := db.GetServer()
|
|
if err != nil {
|
|
log.Error("Cannot get server config: ", err)
|
|
return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Cannot get server config"})
|
|
}
|
|
|
|
clients, err := db.GetClients(false)
|
|
if err != nil {
|
|
log.Error("Cannot get client config: ", err)
|
|
return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Cannot get client config"})
|
|
}
|
|
|
|
settings, err := db.GetGlobalSettings()
|
|
if err != nil {
|
|
log.Error("Cannot get global settings: ", err)
|
|
return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "Cannot get global settings"})
|
|
}
|
|
|
|
// Write config file
|
|
err = util.WriteWireGuardServerConfig(tmplBox, server, clients, settings)
|
|
if err != nil {
|
|
log.Error("Cannot apply server config: ", err)
|
|
return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{
|
|
false, fmt.Sprintf("Cannot apply server config: %v", err),
|
|
})
|
|
}
|
|
|
|
return c.JSON(http.StatusOK, jsonHTTPResponse{true, "Applied server config successfully"})
|
|
}
|
|
}
|