bettercap/modules/api_rest/api_rest.go
2024-08-28 16:14:23 +02:00

313 lines
8.6 KiB
Go

package api_rest
import (
"context"
"fmt"
"net/http"
"sync"
"time"
"github.com/bettercap/bettercap/v2/session"
"github.com/bettercap/bettercap/v2/tls"
"github.com/bettercap/recording"
"github.com/gorilla/mux"
"github.com/gorilla/websocket"
"github.com/evilsocket/islazy/fs"
)
type RestAPI struct {
session.SessionModule
server *http.Server
username string
password string
certFile string
keyFile string
allowOrigin string
useWebsocket bool
upgrader websocket.Upgrader
quit chan bool
recClock int
recording bool
recTime int
loading bool
replaying bool
recordFileName string
recordWait *sync.WaitGroup
record *recording.Archive
recStarted time.Time
recStopped time.Time
}
func NewRestAPI(s *session.Session) *RestAPI {
mod := &RestAPI{
SessionModule: session.NewSessionModule("api.rest", s),
server: &http.Server{},
quit: make(chan bool),
useWebsocket: false,
allowOrigin: "*",
upgrader: websocket.Upgrader{
ReadBufferSize: 1024,
WriteBufferSize: 1024,
},
recClock: 1,
recording: false,
recTime: 0,
loading: false,
replaying: false,
recordFileName: "",
recordWait: &sync.WaitGroup{},
record: nil,
}
mod.State.Store("recording", &mod.recording)
mod.State.Store("rec_clock", &mod.recClock)
mod.State.Store("replaying", &mod.replaying)
mod.State.Store("loading", &mod.loading)
mod.State.Store("load_progress", 0)
mod.State.Store("rec_time", &mod.recTime)
mod.State.Store("rec_filename", &mod.recordFileName)
mod.State.Store("rec_frames", 0)
mod.State.Store("rec_cur_frame", 0)
mod.State.Store("rec_started", &mod.recStarted)
mod.State.Store("rec_stopped", &mod.recStopped)
mod.AddParam(session.NewStringParameter("api.rest.address",
"127.0.0.1",
session.IPv4Validator,
"Address to bind the API REST server to."))
mod.AddParam(session.NewIntParameter("api.rest.port",
"8081",
"Port to bind the API REST server to."))
mod.AddParam(session.NewStringParameter("api.rest.alloworigin",
mod.allowOrigin,
"",
"Value of the Access-Control-Allow-Origin header of the API server."))
mod.AddParam(session.NewStringParameter("api.rest.username",
"",
"",
"API authentication username."))
mod.AddParam(session.NewStringParameter("api.rest.password",
"",
"",
"API authentication password."))
mod.AddParam(session.NewStringParameter("api.rest.certificate",
"",
"",
"API TLS certificate."))
tls.CertConfigToModule("api.rest", &mod.SessionModule, tls.DefaultLegitConfig)
mod.AddParam(session.NewStringParameter("api.rest.key",
"",
"",
"API TLS key"))
mod.AddParam(session.NewBoolParameter("api.rest.websocket",
"false",
"If true the /api/events route will be available as a websocket endpoint instead of HTTPS."))
mod.AddHandler(session.NewModuleHandler("api.rest on", "",
"Start REST API server.",
func(args []string) error {
return mod.Start()
}))
mod.AddHandler(session.NewModuleHandler("api.rest off", "",
"Stop REST API server.",
func(args []string) error {
return mod.Stop()
}))
mod.AddParam(session.NewIntParameter("api.rest.record.clock",
"1",
"Number of seconds to wait while recording with api.rest.record between one sample and the next one."))
mod.AddHandler(session.NewModuleHandler("api.rest.record off", "",
"Stop recording the session.",
func(args []string) error {
return mod.stopRecording()
}))
mod.AddHandler(session.NewModuleHandler("api.rest.record FILENAME", `api\.rest\.record (.+)`,
"Start polling the rest API periodically recording each sample in a compressed file that can be later replayed.",
func(args []string) error {
return mod.startRecording(args[0])
}))
mod.AddHandler(session.NewModuleHandler("api.rest.replay off", "",
"Stop replaying the recorded session.",
func(args []string) error {
return mod.stopReplay()
}))
mod.AddHandler(session.NewModuleHandler("api.rest.replay FILENAME", `api\.rest\.replay (.+)`,
"Start the rest API module in replay mode using FILENAME as the recorded session file, will revert to normal mode once the replay is over.",
func(args []string) error {
return mod.startReplay(args[0])
}))
return mod
}
type JSSessionRequest struct {
Command string `json:"cmd"`
}
type JSSessionResponse struct {
Error string `json:"error"`
}
func (mod *RestAPI) Name() string {
return "api.rest"
}
func (mod *RestAPI) Description() string {
return "Expose a RESTful API."
}
func (mod *RestAPI) Author() string {
return "Simone Margaritelli <evilsocket@gmail.com>"
}
func (mod *RestAPI) isTLS() bool {
return mod.certFile != "" && mod.keyFile != ""
}
func (mod *RestAPI) Configure() error {
var err error
var ip string
var port int
if mod.Running() {
return session.ErrAlreadyStarted(mod.Name())
} else if err, ip = mod.StringParam("api.rest.address"); err != nil {
return err
} else if err, port = mod.IntParam("api.rest.port"); err != nil {
return err
} else if err, mod.allowOrigin = mod.StringParam("api.rest.alloworigin"); err != nil {
return err
} else if err, mod.certFile = mod.StringParam("api.rest.certificate"); err != nil {
return err
} else if mod.certFile, err = fs.Expand(mod.certFile); err != nil {
return err
} else if err, mod.keyFile = mod.StringParam("api.rest.key"); err != nil {
return err
} else if mod.keyFile, err = fs.Expand(mod.keyFile); err != nil {
return err
} else if err, mod.username = mod.StringParam("api.rest.username"); err != nil {
return err
} else if err, mod.password = mod.StringParam("api.rest.password"); err != nil {
return err
} else if err, mod.useWebsocket = mod.BoolParam("api.rest.websocket"); err != nil {
return err
}
if mod.isTLS() {
if !fs.Exists(mod.certFile) || !fs.Exists(mod.keyFile) {
cfg, err := tls.CertConfigFromModule("api.rest", mod.SessionModule)
if err != nil {
return err
}
mod.Debug("%+v", cfg)
mod.Info("generating TLS key to %s", mod.keyFile)
mod.Info("generating TLS certificate to %s", mod.certFile)
if err := tls.Generate(cfg, mod.certFile, mod.keyFile, false); err != nil {
return err
}
} else {
mod.Info("loading TLS key from %s", mod.keyFile)
mod.Info("loading TLS certificate from %s", mod.certFile)
}
}
mod.server = &http.Server{}
mod.server.Addr = fmt.Sprintf("%s:%d", ip, port)
router := mux.NewRouter()
router.Methods("OPTIONS").HandlerFunc(mod.corsRoute)
router.HandleFunc("/api/file", mod.fileRoute)
router.HandleFunc("/api/events", mod.eventsRoute)
router.HandleFunc("/api/session", mod.sessionRoute)
router.HandleFunc("/api/session/ble", mod.sessionRoute)
router.HandleFunc("/api/session/ble/{mac}", mod.sessionRoute)
router.HandleFunc("/api/session/hid", mod.sessionRoute)
router.HandleFunc("/api/session/hid/{mac}", mod.sessionRoute)
router.HandleFunc("/api/session/env", mod.sessionRoute)
router.HandleFunc("/api/session/gateway", mod.sessionRoute)
router.HandleFunc("/api/session/interface", mod.sessionRoute)
router.HandleFunc("/api/session/modules", mod.sessionRoute)
router.HandleFunc("/api/session/lan", mod.sessionRoute)
router.HandleFunc("/api/session/lan/{mac}", mod.sessionRoute)
router.HandleFunc("/api/session/options", mod.sessionRoute)
router.HandleFunc("/api/session/packets", mod.sessionRoute)
router.HandleFunc("/api/session/started-at", mod.sessionRoute)
router.HandleFunc("/api/session/wifi", mod.sessionRoute)
router.HandleFunc("/api/session/wifi/{mac}", mod.sessionRoute)
mod.server.Handler = router
if mod.username == "" || mod.password == "" {
mod.Warning("api.rest.username and/or api.rest.password parameters are empty, authentication is disabled.")
}
return nil
}
func (mod *RestAPI) Start() error {
if mod.replaying {
return fmt.Errorf("the api is currently in replay mode, run api.rest.replay off before starting it")
} else if err := mod.Configure(); err != nil {
return err
}
mod.SetRunning(true, func() {
var err error
if mod.isTLS() {
mod.Info("api server starting on https://%s", mod.server.Addr)
err = mod.server.ListenAndServeTLS(mod.certFile, mod.keyFile)
} else {
mod.Info("api server starting on http://%s", mod.server.Addr)
err = mod.server.ListenAndServe()
}
if err != nil && err != http.ErrServerClosed {
panic(err)
}
})
return nil
}
func (mod *RestAPI) Stop() error {
if mod.recording {
mod.stopRecording()
} else if mod.replaying {
mod.stopReplay()
}
return mod.SetRunning(false, func() {
go func() {
mod.quit <- true
}()
ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
defer cancel()
mod.server.Shutdown(ctx)
})
}