deblan/wireguard-ui
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wireguard-ui
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Fixes security issue & Adds support to sent configuration via email (#83)

This commit is contained in:
Georgios Komninos 2021-08-08 20:55:59 +03:00 committed by GitHub
parent 7edcd1b80c
commit 1711530dda
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GPG Key ID: 4AEE18F83AFDEB23
13 changed files with 335 additions and 76 deletions
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12
README.md
View File

@ -21,6 +21,18 @@ You can take a look at this example of [docker-compose.yml](https://github.com/n
```
docker-compose up
```
### Environment Variables
Set the `SESSION_SECRET` environment variable to a random value.
In order to sent the wireguard configuration to clients via email (using sendgrid api) set the following environment variables
```
SENDGRID_API_KEY: Your sendgrid api key
EMAIL_FROM: the email address you registered on sendgrid
EMAIL_FROM_NAME: the sender's email address
```
### Using binary file

3
custom/js/helper.js
View File

@ -29,6 +29,9 @@ function renderClientList(data) {
<div class="btn-group">
<button onclick="location.href='/download?clientid=${obj.Client.id}'" type="button"
class="btn btn-outline-success btn-sm">Download</button>
<button type="button" class="btn btn-outline-warning btn-sm" data-toggle="modal"
data-target="#modal_email_client" data-clientid="${obj.Client.id}"
data-clientname="${obj.Client.name}">Email</button>
<button type="button" class="btn btn-outline-primary btn-sm" data-toggle="modal"
data-target="#modal_edit_client" data-clientid="${obj.Client.id}"
data-clientname="${obj.Client.name}">Edit</button>

8
docker-compose.yaml
View File

@ -2,8 +2,14 @@ version: '3'
services:
wg:
image: ngoduykhanh/wireguard-ui:latest
build: .
#image: ngoduykhanh/wireguard-ui:latest
container_name: wgui
environment:
- SENDGRID_API_KEY
- EMAIL_FROM
- EMAIL_FROM_NAME
- SESSION_SECRET
ports:
- 5000:5000
logging:

10
emailer/interface.go Normal file
View File

@ -0,0 +1,10 @@
package emailer
type Attachment struct {
Name string
Data []byte
}
type Emailer interface {
Send(toName string, to string, subject string, content string, attachments []Attachment) error
}

54
emailer/sendgrid.go Normal file
View File

@ -0,0 +1,54 @@
package emailer
import (
"encoding/base64"
"github.com/sendgrid/sendgrid-go"
"github.com/sendgrid/sendgrid-go/helpers/mail"
)
type SendgridApiMail struct {
apiKey string
fromName string
from string
}
func NewSendgridApiMail(apiKey, fromName, from string) *SendgridApiMail {
ans := SendgridApiMail{apiKey: apiKey, fromName: fromName, from: from}
return &ans
}
func (o *SendgridApiMail) Send(toName string, to string, subject string, content string, attachments []Attachment) error {
m := mail.NewV3Mail()
mailFrom := mail.NewEmail(o.fromName, o.from)
mailContent := mail.NewContent("text/html", content)
mailTo := mail.NewEmail(toName, to)
m.SetFrom(mailFrom)
m.AddContent(mailContent)
personalization := mail.NewPersonalization()
personalization.AddTos(mailTo)
personalization.Subject = subject
m.AddPersonalizations(personalization)
toAdd := make([]*mail.Attachment, 0, len(attachments))
for i := range attachments {
var att mail.Attachment
encoded := base64.StdEncoding.EncodeToString(attachments[i].Data)
att.SetContent(encoded)
att.SetType("text/plain")
att.SetFilename(attachments[i].Name)
att.SetDisposition("attachment")
toAdd = append(toAdd, &att)
}
m.AddAttachment(toAdd...)
request := sendgrid.GetRequest(o.apiKey, "/v3/mail/send", "https://api.sendgrid.com")
request.Method = "POST"
request.Body = mail.GetRequestBody(m)
_, err := sendgrid.API(request)
return err
}

2
go.mod
View File

@ -14,6 +14,8 @@ require (
github.com/leodido/go-urn v1.2.0 // indirect
github.com/rs/xid v1.2.1
github.com/sdomino/scribble v0.0.0-20191024200645-4116320640ba
github.com/sendgrid/rest v2.6.4+incompatible // indirect
github.com/sendgrid/sendgrid-go v3.10.0+incompatible
github.com/skip2/go-qrcode v0.0.0-20191027152451-9434209cb086
golang.zx2c4.com/wireguard/wgctrl v0.0.0-20200324154536-ceff61240acf
gopkg.in/go-playground/assert.v1 v1.2.1 // indirect

4
go.sum
View File

@ -103,6 +103,10 @@ github.com/rs/xid v1.2.1 h1:mhH9Nq+C1fY2l1XIpgxIiUOfNpRBYH1kKcr+qfKgjRc=
github.com/rs/xid v1.2.1/go.mod h1:+uKXf+4Djp6Md1KODXJxgGQPKngRmWyn10oCKFzNHOQ=
github.com/sdomino/scribble v0.0.0-20191024200645-4116320640ba h1:8QAc9wFAf2b/9cAXskm0wBylObZ0bTpRcaP7ThjLPVQ=
github.com/sdomino/scribble v0.0.0-20191024200645-4116320640ba/go.mod h1:W6zxGUBCXRR5QugSd/nFcFVmwoGnvpjiNY/JwT03Wew=
github.com/sendgrid/rest v2.6.4+incompatible h1:lq6gAQxLwVBf3mVyCCSHI6mgF+NfaJFJHjT0kl6SSo8=
github.com/sendgrid/rest v2.6.4+incompatible/go.mod h1:kXX7q3jZtJXK5c5qK83bSGMdV6tsOE70KbHoqJls4lE=
github.com/sendgrid/sendgrid-go v3.10.0+incompatible h1:aSYyurHxEZSDy7kxhvZ4fH0inNkEEmRssZNbAmETR2c=
github.com/sendgrid/sendgrid-go v3.10.0+incompatible/go.mod h1:QRQt+LX/NmgVEvmdRw0VT/QgUn499+iza2FnDca9fg8=
github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/skip2/go-qrcode v0.0.0-20191027152451-9434209cb086 h1:RYiqpb2ii2Z6J4x0wxK46kvPBbFuZcdhS+CIztmYgZs=
github.com/skip2/go-qrcode v0.0.0-20191027152451-9434209cb086/go.mod h1:PLPIyL7ikehBD1OAjmKKiOEhbvWyHGaNDjquXMcYABo=

76
handler/routes.go
View File

@ -1,6 +1,7 @@
package handler
import (
"encoding/base64"
"encoding/json"
"fmt"
"net/http"
@ -13,6 +14,7 @@ import (
"github.com/labstack/echo-contrib/session"
"github.com/labstack/echo/v4"
"github.com/labstack/gommon/log"
"github.com/ngoduykhanh/wireguard-ui/emailer"
"github.com/ngoduykhanh/wireguard-ui/model"
"github.com/ngoduykhanh/wireguard-ui/util"
"github.com/rs/xid"
@ -77,8 +79,6 @@ func Logout() echo.HandlerFunc {
// WireGuardClients handler
func WireGuardClients() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
clientDataList, err := util.GetClients(true)
if err != nil {
@ -97,8 +97,6 @@ func WireGuardClients() echo.HandlerFunc {
// GetClients handler return a list of Wireguard client data
func GetClients() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
clientDataList, err := util.GetClients(true)
if err != nil {
@ -114,8 +112,6 @@ func GetClients() echo.HandlerFunc {
// GetClient handler return a of Wireguard client data
func GetClient() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
clientID := c.Param("id")
clientData, err := util.GetClientByID(clientID, true)
@ -130,8 +126,6 @@ func GetClient() echo.HandlerFunc {
// NewClient handler
func NewClient() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
client := new(model.Client)
c.Bind(client)
@ -194,11 +188,53 @@ func NewClient() echo.HandlerFunc {
}
}
// EmailClient handler to sent the configuration via email
func EmailClient(mailer emailer.Emailer, emailSubject, emailContent string) echo.HandlerFunc {
type clientIdEmailPayload struct {
ID string `json:"id"`
Email string `json:"email"`
}
return func(c echo.Context) error {
var payload clientIdEmailPayload
c.Bind(&payload)
// TODO validate email
clientData, err := util.GetClientByID(payload.ID, true)
if err != nil {
log.Errorf("Cannot generate client id %s config file for downloading: %v", payload.ID, err)
return c.JSON(http.StatusNotFound, jsonHTTPResponse{false, "Client not found"})
}
// build config
server, _ := util.GetServer()
globalSettings, _ := util.GetGlobalSettings()
config := util.BuildClientConfig(*clientData.Client, server, globalSettings)
cfg_att := emailer.Attachment{"wg0.conf", []byte(config)}
qrdata, err := base64.StdEncoding.DecodeString(strings.TrimPrefix(clientData.QRCode, "data:image/png;base64,"))
if err != nil {
return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, "decoding: " + err.Error()})
}
qr_att := emailer.Attachment{"wg.png", qrdata}
err = mailer.Send(
clientData.Client.Name,
payload.Email,
emailSubject,
emailContent,
[]emailer.Attachment{cfg_att, qr_att},
)
if err != nil {
return c.JSON(http.StatusInternalServerError, jsonHTTPResponse{false, err.Error()})
}
return c.JSON(http.StatusOK, jsonHTTPResponse{true, "Email sent successfully"})
}
}
// UpdateClient handler to update client information
func UpdateClient() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
_client := new(model.Client)
c.Bind(_client)
@ -257,8 +293,6 @@ func UpdateClient() echo.HandlerFunc {
// SetClientStatus handler to enable / disable a client
func SetClientStatus() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
data := make(map[string]interface{})
err := json.NewDecoder(c.Request().Body).Decode(&data)
@ -320,8 +354,6 @@ func DownloadClient() echo.HandlerFunc {
// RemoveClient handler
func RemoveClient() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
client := new(model.Client)
c.Bind(client)
@ -346,8 +378,6 @@ func RemoveClient() echo.HandlerFunc {
// WireGuardServer handler
func WireGuardServer() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
server, err := util.GetServer()
if err != nil {
@ -365,8 +395,6 @@ func WireGuardServer() echo.HandlerFunc {
// WireGuardServerInterfaces handler
func WireGuardServerInterfaces() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
serverInterface := new(model.ServerInterface)
c.Bind(serverInterface)
@ -396,8 +424,6 @@ func WireGuardServerInterfaces() echo.HandlerFunc {
// WireGuardServerKeyPair handler to generate private and public keys
func WireGuardServerKeyPair() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
// gen Wireguard key pair
key, err := wgtypes.GeneratePrivateKey()
@ -428,8 +454,6 @@ func WireGuardServerKeyPair() echo.HandlerFunc {
// GlobalSettings handler
func GlobalSettings() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
globalSettings, err := util.GetGlobalSettings()
if err != nil {
@ -446,8 +470,6 @@ func GlobalSettings() echo.HandlerFunc {
// GlobalSettingSubmit handler to update the global settings
func GlobalSettingSubmit() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
globalSettings := new(model.GlobalSetting)
c.Bind(globalSettings)
@ -477,8 +499,6 @@ func GlobalSettingSubmit() echo.HandlerFunc {
// MachineIPAddresses handler to get local interface ip addresses
func MachineIPAddresses() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
// get private ip addresses
interfaceList, err := util.GetInterfaceIPs()
@ -503,8 +523,6 @@ func MachineIPAddresses() echo.HandlerFunc {
// SuggestIPAllocation handler to get the list of ip address for client
func SuggestIPAllocation() echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
server, err := util.GetServer()
if err != nil {
@ -541,8 +559,6 @@ func SuggestIPAllocation() echo.HandlerFunc {
// ApplyServerConfig handler to write config file and restart Wireguard server
func ApplyServerConfig(tmplBox *rice.Box) echo.HandlerFunc {
return func(c echo.Context) error {
// access validation
validSession(c)
server, err := util.GetServer()
if err != nil {

28
handler/session.go
View File

@ -9,22 +9,32 @@ import (
"github.com/ngoduykhanh/wireguard-ui/util"
)
// validSession to redirect user to the login page if they are not authenticated or session expired.
func validSession(c echo.Context) {
if !util.DisableLogin {
sess, _ := session.Get("session", c)
cookie, err := c.Cookie("session_token")
if err != nil || sess.Values["session_token"] != cookie.Value {
func ValidSession(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
if !isValidSession(c) {
nextURL := c.Request().URL
if nextURL != nil {
c.Redirect(http.StatusTemporaryRedirect, fmt.Sprintf("/login?next=%s", c.Request().URL))
if nextURL != nil && c.Request().Method == http.MethodGet {
return c.Redirect(http.StatusTemporaryRedirect, fmt.Sprintf("/login?next=%s", c.Request().URL))
} else {
c.Redirect(http.StatusTemporaryRedirect, "/login")
return c.Redirect(http.StatusTemporaryRedirect, "/login")
}
}
return next(c)
}
}
func isValidSession(c echo.Context) bool {
if util.DisableLogin {
return true
}
sess, _ := session.Get("session", c)
cookie, err := c.Cookie("session_token")
if err != nil || sess.Values["session_token"] != cookie.Value {
return false
}
return true
}
// currentUser to get username of logged in user
func currentUser(c echo.Context) string {
if util.DisableLogin {

55
main.go
View File

@ -4,10 +4,13 @@ import (
"flag"
"fmt"
"net/http"
"os"
"time"
rice "github.com/GeertJohan/go.rice"
"github.com/labstack/echo/v4"
"github.com/ngoduykhanh/wireguard-ui/emailer"
"github.com/ngoduykhanh/wireguard-ui/handler"
"github.com/ngoduykhanh/wireguard-ui/router"
"github.com/ngoduykhanh/wireguard-ui/util"
@ -21,6 +24,15 @@ var (
buildTime = fmt.Sprintf(time.Now().UTC().Format("01-02-2006 15:04:05"))
)
const (
defaultEmailSubject = "Your wireguard configuration"
defaultEmailContent = `Hi,</br>
<p>in this email you can file your personal configuration for our wireguard server.</p>
<p>Best</p>
`
)
func init() {
// command-line flags
flagDisableLogin := flag.Bool("disable-login", false, "Disable login page. Turn off authentication.")
@ -30,6 +42,10 @@ func init() {
// update runtime config
util.DisableLogin = *flagDisableLogin
util.BindAddress = *flagBindAddress
util.SendgridApiKey = os.Getenv("SENDGRID_API_KEY")
util.EmailFrom = os.Getenv("EMAIL_FROM")
util.EmailFromName = os.Getenv("EMAIL_FROM_NAME")
util.SessionSecret = []byte(os.Getenv("SESSION_SECRET"))
// print app information
fmt.Println("Wireguard UI")
@ -60,31 +76,34 @@ func main() {
assetHandler := http.FileServer(rice.MustFindBox("assets").HTTPBox())
// register routes
app := router.New(tmplBox, extraData)
app := router.New(tmplBox, extraData, util.SessionSecret)
app.GET("/", handler.WireGuardClients())
app.GET("/", handler.WireGuardClients(), handler.ValidSession)
if !util.DisableLogin {
app.GET("/login", handler.LoginPage())
app.POST("/login", handler.Login())
}
app.GET("/logout", handler.Logout())
app.POST("/new-client", handler.NewClient())
app.POST("/update-client", handler.UpdateClient())
app.POST("/client/set-status", handler.SetClientStatus())
app.POST("/remove-client", handler.RemoveClient())
app.GET("/download", handler.DownloadClient())
app.GET("/wg-server", handler.WireGuardServer())
app.POST("wg-server/interfaces", handler.WireGuardServerInterfaces())
app.POST("wg-server/keypair", handler.WireGuardServerKeyPair())
app.GET("/global-settings", handler.GlobalSettings())
app.POST("/global-settings", handler.GlobalSettingSubmit())
app.GET("/api/clients", handler.GetClients())
app.GET("/api/client/:id", handler.GetClient())
app.GET("/api/machine-ips", handler.MachineIPAddresses())
app.GET("/api/suggest-client-ips", handler.SuggestIPAllocation())
app.GET("/api/apply-wg-config", handler.ApplyServerConfig(tmplBox))
sendmail := emailer.NewSendgridApiMail(util.SendgridApiKey, util.EmailFromName, util.EmailFrom)
app.GET("/logout", handler.Logout(), handler.ValidSession)
app.POST("/new-client", handler.NewClient(), handler.ValidSession)
app.POST("/update-client", handler.UpdateClient(), handler.ValidSession)
app.POST("/email-client", handler.EmailClient(sendmail, defaultEmailSubject, defaultEmailContent), handler.ValidSession)
app.POST("/client/set-status", handler.SetClientStatus(), handler.ValidSession)
app.POST("/remove-client", handler.RemoveClient(), handler.ValidSession)
app.GET("/download", handler.DownloadClient(), handler.ValidSession)
app.GET("/wg-server", handler.WireGuardServer(), handler.ValidSession)
app.POST("wg-server/interfaces", handler.WireGuardServerInterfaces(), handler.ValidSession)
app.POST("wg-server/keypair", handler.WireGuardServerKeyPair(), handler.ValidSession)
app.GET("/global-settings", handler.GlobalSettings(), handler.ValidSession)
app.POST("/global-settings", handler.GlobalSettingSubmit(), handler.ValidSession)
app.GET("/api/clients", handler.GetClients(), handler.ValidSession)
app.GET("/api/client/:id", handler.GetClient(), handler.ValidSession)
app.GET("/api/machine-ips", handler.MachineIPAddresses(), handler.ValidSession)
app.GET("/api/suggest-client-ips", handler.SuggestIPAllocation(), handler.ValidSession)
app.GET("/api/apply-wg-config", handler.ApplyServerConfig(tmplBox), handler.ValidSession)
// servers other static files
app.GET("/static/*", echo.WrapHandler(http.StripPrefix("/static/", assetHandler)))

6
router/router.go
View File

@ -6,7 +6,7 @@ import (
"reflect"
"text/template"
"github.com/GeertJohan/go.rice"
rice "github.com/GeertJohan/go.rice"
"github.com/gorilla/sessions"
"github.com/labstack/echo-contrib/session"
"github.com/labstack/echo/v4"
@ -44,9 +44,9 @@ func (t *TemplateRegistry) Render(w io.Writer, name string, data interface{}, c
}
// New function
func New(tmplBox *rice.Box, extraData map[string]string) *echo.Echo {
func New(tmplBox *rice.Box, extraData map[string]string, secret []byte) *echo.Echo {
e := echo.New()
e.Use(session.Middleware(sessions.NewCookieStore([]byte("secret"))))
e.Use(session.Middleware(sessions.NewCookieStore(secret)))
// read html template file to string
tmplBaseString, err := tmplBox.String("base.html")

143
templates/clients.html
View File

@ -30,6 +30,34 @@ Wireguard Clients
</div>
</section>
<div class="modal fade" id="modal_email_client">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title">Email Configuration</h4>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">&times;</span>
</button>
</div>
<form name="frm_email_client" id="frm_email_client">
<div class="modal-body">
<input type="hidden" id="_client_id" name="_client_id">
<div class="form-group">
<label for="_client_email" class="control-label">Email</label>
<input type="text" class="form-control" id="_client_email" name="client_email">
</div>
</div>
<div class="modal-footer justify-content-between">
<button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>
<button type="submit" class="btn btn-success">Send</button>
</div>
</form>
</div>
<!-- /.modal-content -->
</div>
<!-- /.modal-dialog -->
</div>
<div class="modal fade" id="modal_edit_client">
<div class="modal-dialog">
<div class="modal-content">
@ -243,6 +271,8 @@ Wireguard Clients
});
});
// Edit client modal event
$(document).ready(function () {
$("#modal_edit_client").on('shown.bs.modal', function (event) {
@ -308,6 +338,31 @@ Wireguard Clients
});
});
// submitEmailClient function for sending an email to the client with the configuration
function submitEmailClient() {
const client_id = $("#_client_id").val();
const email = $("#_client_email").val();
const data = {"id": client_id, "email": email};
$.ajax({
cache: false,
method: 'POST',
url: '/email-client',
dataType: 'json',
contentType: "application/json",
data: JSON.stringify(data),
success: function(resp) {
$("#modal_email_client").modal('hide');
toastr.success('Sent email to client successfully');
// Refresh the home page (clients page) after sending email successfully
location.reload();
},
error: function(jqXHR, exception) {
const responseJson = jQuery.parseJSON(jqXHR.responseText);
toastr.error(responseJson['message']);
}
});
}
// submitEditClient function for updating an existing client
function submitEditClient() {
const client_id = $("#_client_id").val();
@ -350,27 +405,89 @@ Wireguard Clients
});
}
// Edit client form validation
$(document).ready(function () {
$.validator.setDefaults({
submitHandler: function () {
submitEditClient();
// submitHandler
function submitHandler(form) {
const formId = $(form).attr('id');
if (formId === "frm_edit_client") {
submitEditClient();
}else if (formId === "frm_email_client") {
submitEmailClient();
}
}
$("#modal_email_client").on('shown.bs.modal', function (event) {
let modal = $(this);
const button = $(event.relatedTarget);
const client_id = button.data('clientid');
$.ajax({
cache: false,
method: 'GET',
url: '/api/client/' + client_id,
dataType: 'json',
contentType: "application/json",
success: function (resp) {
const client = resp.Client;
modal.find(".modal-title").text("Email Client " + client.name);
modal.find("#_client_id").val(client.id);
modal.find("#_client_email").val(client.email);
},
error: function (jqXHR, exception) {
const responseJson = jQuery.parseJSON(jqXHR.responseText);
toastr.error(responseJson['message']);
}
});
$("#frm_edit_client").validate({
rules: {
client_name: {
required: true,
});
$(document).ready(function () {
$.validator.setDefaults({
submitHandler: function (form) {
//submitEditClient();
submitHandler(form);
}
});
// Edit client form validation
$("#frm_edit_client").validate({
rules: {
client_name: {
required: true,
},
client_email: {
required: true,
email: true,
},
},
messages: {
client_name: {
required: "Please enter a name"
},
client_email: {
required: "Please enter an email address",
email: "Please enter a valid email address"
},
},
errorElement: 'span',
errorPlacement: function (error, element) {
error.addClass('invalid-feedback');
element.closest('.form-group').append(error);
},
highlight: function (element, errorClass, validClass) {
$(element).addClass('is-invalid');
},
unhighlight: function (element, errorClass, validClass) {
$(element).removeClass('is-invalid');
}
});
// Email client form validation
$("#frm_email_client").validate({
rules: {
client_email: {
required: true,
email: true,
},
},
messages: {
client_name: {
required: "Please enter a name"
},
client_email: {
required: "Please enter an email address",
email: "Please enter a valid email address"
@ -390,4 +507,4 @@ Wireguard Clients
});
});
</script>
{{end}}
{{end}}

10
util/config.go
View File

@ -2,6 +2,12 @@ package util
// Runtime config
var (
DisableLogin bool
BindAddress string
DisableLogin bool
BindAddress string
SendgridApiKey string
EmailFrom string
EmailFromName string
EmailSubject string
EmailContent string
SessionSecret []byte
)