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caplets.go
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caplets.go
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package caplets
import (
"fmt"
"io"
"net/http"
"os"
"github.com/bettercap/bettercap/caplets"
"github.com/bettercap/bettercap/session"
"github.com/dustin/go-humanize"
"github.com/evilsocket/islazy/fs"
"github.com/evilsocket/islazy/tui"
"github.com/evilsocket/islazy/zip"
)
type CapletsModule struct {
session.SessionModule
}
func NewCapletsModule(s *session.Session) *CapletsModule {
mod := &CapletsModule{
SessionModule: session.NewSessionModule("caplets", s),
}
mod.AddHandler(session.NewModuleHandler("caplets.show", "",
"Show a list of installed caplets.",
func(args []string) error {
return mod.Show()
}))
mod.AddHandler(session.NewModuleHandler("caplets.paths", "",
"Show a list caplet search paths.",
func(args []string) error {
return mod.Paths()
}))
mod.AddHandler(session.NewModuleHandler("caplets.update", "",
"Install/updates the caplets.",
func(args []string) error {
return mod.Update()
}))
return mod
}
func (mod *CapletsModule) Name() string {
return "caplets"
}
func (mod *CapletsModule) Description() string {
return "A module to list and update caplets."
}
func (mod *CapletsModule) Author() string {
return "Simone Margaritelli <evilsocket@gmail.com>"
}
func (mod *CapletsModule) Configure() error {
return nil
}
func (mod *CapletsModule) Stop() error {
return nil
}
func (mod *CapletsModule) Start() error {
return nil
}
func (mod *CapletsModule) Show() error {
caplets := caplets.List()
if len(caplets) == 0 {
return fmt.Errorf("no installed caplets on this system, use the caplets.update command to download them")
}
colNames := []string{
"Name",
"Path",
"Size",
}
rows := [][]string{}
for _, caplet := range caplets {
rows = append(rows, []string{
tui.Bold(caplet.Name),
caplet.Path,
tui.Dim(humanize.Bytes(uint64(caplet.Size))),
})
}
tui.Table(os.Stdout, colNames, rows)
return nil
}
func (mod *CapletsModule) Paths() error {
colNames := []string{
"Path",
}
rows := [][]string{}
for _, path := range caplets.LoadPaths {
rows = append(rows, []string{path})
}
tui.Table(os.Stdout, colNames, rows)
fmt.Printf("(paths can be customized by defining the %s environment variable)\n", tui.Bold(caplets.EnvVarName))
return nil
}
func (mod *CapletsModule) Update() error {
if !fs.Exists(caplets.InstallBase) {
mod.Info("creating caplets install path %s ...", caplets.InstallBase)
if err := os.MkdirAll(caplets.InstallBase, os.ModePerm); err != nil {
return err
}
}
out, err := os.Create(caplets.ArchivePath)
if err != nil {
return err
}
defer out.Close()
mod.Info("downloading caplets from %s ...", caplets.InstallArchive)
resp, err := http.Get(caplets.InstallArchive)
if err != nil {
return err
}
defer resp.Body.Close()
if _, err := io.Copy(out, resp.Body); err != nil {
return err
}
mod.Info("installing caplets to %s ...", caplets.InstallPath)
if _, err = zip.Unzip(caplets.ArchivePath, caplets.InstallBase); err != nil {
return err
}
os.RemoveAll(caplets.InstallPath)
return os.Rename(caplets.InstallPathArchive, caplets.InstallPath)
}