bettercap/modules/http_server.go
2018-01-10 04:04:16 +01:00

137 lines
3 KiB
Go

package modules
import (
"context"
"fmt"
"net/http"
"time"
"github.com/evilsocket/bettercap-ng/log"
"github.com/evilsocket/bettercap-ng/session"
)
type HttpServer struct {
session.SessionModule
server *http.Server
path string
}
func NewHttpServer(s *session.Session) *HttpServer {
httpd := &HttpServer{
SessionModule: session.NewSessionModule("http.server", s),
server: &http.Server{},
path: ".",
}
httpd.AddParam(session.NewStringParameter("http.server.path",
".",
"",
"Server folder."))
httpd.AddParam(session.NewStringParameter("http.server.address",
"<interface address>",
`^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$`,
"Address to bind the http server to."))
httpd.AddParam(session.NewIntParameter("http.server.port",
"80",
"Port to bind the http server to."))
httpd.AddHandler(session.NewModuleHandler("http.server on", "",
"Start httpd server.",
func(args []string) error {
return httpd.Start()
}))
httpd.AddHandler(session.NewModuleHandler("http.server off", "",
"Stop httpd server.",
func(args []string) error {
return httpd.Stop()
}))
return httpd
}
func (httpd *HttpServer) Name() string {
return "http.server"
}
func (httpd *HttpServer) Description() string {
return "A simple HTTP server, to be used to serve files and scripts accross the network."
}
func (httpd *HttpServer) Author() string {
return "Simone Margaritelli <evilsocket@protonmail.com>"
}
func (httpd *HttpServer) OnSessionStarted(s *session.Session) {
// refresh the address after session has been created
s.Env.Set("http.server.address", s.Interface.IpAddress)
}
func (httpd *HttpServer) OnSessionEnded(s *session.Session) {
if httpd.Running() {
httpd.Stop()
}
}
func (httpd *HttpServer) configure() error {
var address string
var port int
if err, v := httpd.Param("http.server.path").Get(httpd.Session); err != nil {
return err
} else {
httpd.path = v.(string)
}
http.Handle("/", http.FileServer(http.Dir(httpd.path)))
if err, v := httpd.Param("http.server.address").Get(httpd.Session); err != nil {
return err
} else {
address = v.(string)
}
if err, v := httpd.Param("http.server.port").Get(httpd.Session); err != nil {
return err
} else {
port = v.(int)
}
httpd.server.Addr = fmt.Sprintf("%s:%d", address, port)
return nil
}
func (httpd *HttpServer) Start() error {
if err := httpd.configure(); err != nil {
return err
}
if httpd.Running() == false {
httpd.SetRunning(true)
go func() {
log.Info("httpd server starting on http://%s", httpd.server.Addr)
err := httpd.server.ListenAndServe()
if err != nil && err != http.ErrServerClosed {
panic(err)
}
}()
return nil
}
return fmt.Errorf("httpd server already started.")
}
func (httpd *HttpServer) Stop() error {
if httpd.Running() == true {
httpd.SetRunning(false)
ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
defer cancel()
return httpd.server.Shutdown(ctx)
} else {
return fmt.Errorf("httpd server already stopped.")
}
}