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package https_server
import (
"context"
"fmt"
"net/http"
"strings"
"time"
"github.com/bettercap/bettercap/session"
"github.com/bettercap/bettercap/tls"
"github.com/evilsocket/islazy/fs"
"github.com/evilsocket/islazy/tui"
)
type HttpsServer struct {
session.SessionModule
server *http.Server
certFile string
keyFile string
}
func NewHttpsServer(s *session.Session) *HttpsServer {
mod := &HttpsServer{
SessionModule: session.NewSessionModule("https.server", s),
server: &http.Server{},
}
mod.AddParam(session.NewStringParameter("https.server.path",
".",
"",
"Server folder."))
mod.AddParam(session.NewStringParameter("https.server.address",
session.ParamIfaceAddress,
session.IPv4Validator,
"Address to bind the http server to."))
mod.AddParam(session.NewIntParameter("https.server.port",
"443",
"Port to bind the http server to."))
mod.AddParam(session.NewStringParameter("https.server.certificate",
"~/.bettercap-httpd.cert.pem",
"",
"TLS certificate file (will be auto generated if filled but not existing)."))
mod.AddParam(session.NewStringParameter("https.server.key",
"~/.bettercap-httpd.key.pem",
"",
"TLS key file (will be auto generated if filled but not existing)."))
tls.CertConfigToModule("https.server", &mod.SessionModule, tls.DefaultLegitConfig)
mod.AddHandler(session.NewModuleHandler("https.server on", "",
"Start https server.",
func(args []string) error {
return mod.Start()
}))
mod.AddHandler(session.NewModuleHandler("https.server off", "",
"Stop https server.",
func(args []string) error {
return mod.Stop()
}))
return mod
}
func (mod *HttpsServer) Name() string {
return "https.server"
}
func (mod *HttpsServer) Description() string {
return "A simple HTTPS server, to be used to serve files and scripts across the network."
}
func (mod *HttpsServer) Author() string {
return "Simone Margaritelli <evilsocket@gmail.com>"
}
func (mod *HttpsServer) Configure() error {
var err error
var path string
var address string
var port int
var certFile string
var keyFile string
if mod.Running() {
return session.ErrAlreadyStarted(mod.Name())
}
if err, path = mod.StringParam("https.server.path"); err != nil {
return err
}
router := http.NewServeMux()
fileServer := http.FileServer(http.Dir(path))
router.HandleFunc("/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
mod.Debug("%s %s %s%s", tui.Bold(strings.Split(r.RemoteAddr, ":")[0]), r.Method, r.Host, r.URL.Path)
fileServer.ServeHTTP(w, r)
}))
mod.server.Handler = router
if err, address = mod.StringParam("https.server.address"); err != nil {
return err
}
if err, port = mod.IntParam("https.server.port"); err != nil {
return err
}
mod.server.Addr = fmt.Sprintf("%s:%d", address, port)
if err, certFile = mod.StringParam("https.server.certificate"); err != nil {
return err
} else if certFile, err = fs.Expand(certFile); err != nil {
return err
}
if err, keyFile = mod.StringParam("https.server.key"); err != nil {
return err
} else if keyFile, err = fs.Expand(keyFile); err != nil {
return err
}
if !fs.Exists(certFile) || !fs.Exists(keyFile) {
cfg, err := tls.CertConfigFromModule("https.server", mod.SessionModule)
if err != nil {
return err
}
mod.Debug("%+v", cfg)
mod.Info("generating server TLS key to %s", keyFile)
mod.Info("generating server TLS certificate to %s", certFile)
if err := tls.Generate(cfg, certFile, keyFile, false); err != nil {
return err
}
} else {
mod.Info("loading server TLS key from %s", keyFile)
mod.Info("loading server TLS certificate from %s", certFile)
}
mod.certFile = certFile
mod.keyFile = keyFile
return nil
}
func (mod *HttpsServer) Start() error {
if err := mod.Configure(); err != nil {
return err
}
return mod.SetRunning(true, func() {
mod.Info("starting on https://%s", mod.server.Addr)
if err := mod.server.ListenAndServeTLS(mod.certFile, mod.keyFile); err != nil && err != http.ErrServerClosed {
mod.Error("%v", err)
mod.Stop()
}
})
}
func (mod *HttpsServer) Stop() error {
return mod.SetRunning(false, func() {
ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
defer cancel()
mod.server.Shutdown(ctx)
})
}
|
