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add basic auth for web app #207

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2 changes: 2 additions & 0 deletions docker-compose.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,8 @@ services:
OVPN_AUTH: "true"
OVPN_AUTH_DB_PATH: "/mnt/easyrsa/pki/users.db"
LOG_LEVEL: "debug"
BASIC_USERNAME: "admin"
BASIC_PASSWORD: "admin"
network_mode: service:openvpn
volumes:
- ./easyrsa_master:/mnt/easyrsa
Expand Down
77 changes: 52 additions & 25 deletions main.go
Original file line number Diff line number Diff line change
Expand Up @@ -9,11 +9,7 @@ import (
"encoding/pem"
"errors"
"fmt"
"github.com/google/uuid"
"io/ioutil"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"net"
"net/http"
"os"
Expand All @@ -25,6 +21,11 @@ import (
"time"
"unicode/utf8"

"github.com/google/uuid"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"

"github.com/gobuffalo/packr/v2"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
Expand Down Expand Up @@ -72,9 +73,11 @@ var (
logLevel = kingpin.Flag("log.level", "set log level: trace, debug, info, warn, error (default info)").Default("info").Envar("LOG_LEVEL").String()
logFormat = kingpin.Flag("log.format", "set log format: text, json (default text)").Default("text").Envar("LOG_FORMAT").String()
storageBackend = kingpin.Flag("storage.backend", "storage backend: filesystem, kubernetes.secrets (default filesystem)").Default("filesystem").Envar("STORAGE_BACKEND").String()
certsArchivePath = "/tmp/" + certsArchiveFileName
ccdArchivePath = "/tmp/" + ccdArchiveFileName

certsArchivePath = "/tmp/" + certsArchiveFileName
ccdArchivePath = "/tmp/" + ccdArchiveFileName
basicAuthUser = kingpin.Flag("basic.username", "Username for BasicAuth").Default("").Envar("BASIC_USERNAME").String()
basicAuthPass = kingpin.Flag("basic.password", "Password for BasicAuth").Default("").Envar("BASIC_PASSWORD").String()

version = "2.0.0"
)
Expand Down Expand Up @@ -482,6 +485,30 @@ func (oAdmin *OvpnAdmin) downloadCcdHandler(w http.ResponseWriter, r *http.Reque
http.ServeFile(w, r, ccdArchivePath)
}

func basicAuthHandler(next http.HandlerFunc) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if checkBasicAuth(r) {
next(w, r)
return
}
w.Header().Set("WWW-Authenticate", `Basic realm="restricted", charset="UTF-8"`)
w.WriteHeader(401)
w.Write([]byte("401 Unauthorized\n"))
}
}

func checkBasicAuth(r *http.Request) bool {
// if basic auth user and password not set return true
if *basicAuthUser == "" && *basicAuthPass == "" {
return true
}
u, p, ok := r.BasicAuth()
if !ok {
return false
}
return u == *basicAuthUser && p == *basicAuthPass
}

var app OpenVPNPKI

func main() {
Expand Down Expand Up @@ -555,25 +582,25 @@ func main() {
staticBox := packr.New("static", "./frontend/static")
static := CacheControlWrapper(http.FileServer(staticBox))

http.Handle("/", static)
http.HandleFunc("/api/server/settings", ovpnAdmin.serverSettingsHandler)
http.HandleFunc("/api/users/list", ovpnAdmin.userListHandler)
http.HandleFunc("/api/user/create", ovpnAdmin.userCreateHandler)
http.HandleFunc("/api/user/change-password", ovpnAdmin.userChangePasswordHandler)
http.HandleFunc("/api/user/rotate", ovpnAdmin.userRotateHandler)
http.HandleFunc("/api/user/delete", ovpnAdmin.userDeleteHandler)
http.HandleFunc("/api/user/revoke", ovpnAdmin.userRevokeHandler)
http.HandleFunc("/api/user/unrevoke", ovpnAdmin.userUnrevokeHandler)
http.HandleFunc("/api/user/config/show", ovpnAdmin.userShowConfigHandler)
http.HandleFunc("/api/user/disconnect", ovpnAdmin.userDisconnectHandler)
http.HandleFunc("/api/user/statistic", ovpnAdmin.userStatisticHandler)
http.HandleFunc("/api/user/ccd", ovpnAdmin.userShowCcdHandler)
http.HandleFunc("/api/user/ccd/apply", ovpnAdmin.userApplyCcdHandler)

http.HandleFunc("/api/sync/last/try", ovpnAdmin.lastSyncTimeHandler)
http.HandleFunc("/api/sync/last/successful", ovpnAdmin.lastSuccessfulSyncTimeHandler)
http.HandleFunc(downloadCertsApiUrl, ovpnAdmin.downloadCertsHandler)
http.HandleFunc(downloadCcdApiUrl, ovpnAdmin.downloadCcdHandler)
http.Handle("/", basicAuthHandler(static.ServeHTTP))
http.HandleFunc("/api/server/settings", basicAuthHandler(ovpnAdmin.serverSettingsHandler))
http.HandleFunc("/api/users/list", basicAuthHandler(ovpnAdmin.userListHandler))
http.HandleFunc("/api/user/create", basicAuthHandler(ovpnAdmin.userCreateHandler))
http.HandleFunc("/api/user/change-password", basicAuthHandler(ovpnAdmin.userChangePasswordHandler))
http.HandleFunc("/api/user/rotate", basicAuthHandler(ovpnAdmin.userRotateHandler))
http.HandleFunc("/api/user/delete", basicAuthHandler(ovpnAdmin.userDeleteHandler))
http.HandleFunc("/api/user/revoke", basicAuthHandler(ovpnAdmin.userRevokeHandler))
http.HandleFunc("/api/user/unrevoke", basicAuthHandler(ovpnAdmin.userUnrevokeHandler))
http.HandleFunc("/api/user/config/show", basicAuthHandler(ovpnAdmin.userShowConfigHandler))
http.HandleFunc("/api/user/disconnect", basicAuthHandler(ovpnAdmin.userDisconnectHandler))
http.HandleFunc("/api/user/statistic", basicAuthHandler(ovpnAdmin.userStatisticHandler))
http.HandleFunc("/api/user/ccd", basicAuthHandler(ovpnAdmin.userShowCcdHandler))
http.HandleFunc("/api/user/ccd/apply", basicAuthHandler(ovpnAdmin.userApplyCcdHandler))

http.HandleFunc("/api/sync/last/try", basicAuthHandler(ovpnAdmin.lastSyncTimeHandler))
http.HandleFunc("/api/sync/last/successful", basicAuthHandler(ovpnAdmin.lastSuccessfulSyncTimeHandler))
http.HandleFunc(downloadCertsApiUrl, basicAuthHandler(ovpnAdmin.downloadCertsHandler))
http.HandleFunc(downloadCcdApiUrl, basicAuthHandler(ovpnAdmin.downloadCcdHandler))

http.Handle(*metricsPath, promhttp.HandlerFor(ovpnAdmin.promRegistry, promhttp.HandlerOpts{}))
http.HandleFunc("/ping", func(w http.ResponseWriter, r *http.Request) {
Expand Down