forked from bettercap/bettercap
/
session_core_handlers.go
343 lines (292 loc) · 7.46 KB
/
session_core_handlers.go
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package session
import (
"fmt"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/bettercap/bettercap/core"
"github.com/bettercap/bettercap/network"
"github.com/bettercap/readline"
)
func (s *Session) helpHandler(args []string, sess *Session) error {
filter := ""
if len(args) == 2 {
filter = core.Trim(args[1])
}
if filter == "" {
fmt.Println()
maxLen := 0
for _, h := range s.CoreHandlers {
len := len(h.Name)
if len > maxLen {
maxLen = len
}
}
pad := "%" + strconv.Itoa(maxLen) + "s"
for _, h := range s.CoreHandlers {
fmt.Printf(" "+core.Yellow(pad)+" : %s\n", h.Name, h.Description)
}
fmt.Printf(core.Bold("\nModules\n\n"))
maxLen = 0
for _, m := range s.Modules {
len := len(m.Name())
if len > maxLen {
maxLen = len
}
}
pad = "%" + strconv.Itoa(maxLen) + "s"
for _, m := range s.Modules {
status := ""
if m.Running() {
status = core.Green("running")
} else {
status = core.Red("not running")
}
fmt.Printf(" "+core.Yellow(pad)+" > %s\n", m.Name(), status)
}
fmt.Println()
} else {
err, m := s.Module(filter)
if err != nil {
return err
}
fmt.Println()
status := ""
if m.Running() {
status = core.Green("running")
} else {
status = core.Red("not running")
}
fmt.Printf("%s (%s): %s\n\n", core.Yellow(m.Name()), status, core.Dim(m.Description()))
maxLen := 0
handlers := m.Handlers()
for _, h := range handlers {
len := len(h.Name)
if len > maxLen {
maxLen = len
}
}
for _, h := range handlers {
fmt.Printf(h.Help(maxLen))
}
fmt.Println()
params := m.Parameters()
if len(params) > 0 {
fmt.Printf(" Parameters\n\n")
maxLen := 0
for _, h := range params {
len := len(h.Name)
if len > maxLen {
maxLen = len
}
}
for _, p := range params {
fmt.Printf(p.Help(maxLen))
}
fmt.Println()
}
}
return nil
}
func (s *Session) activeHandler(args []string, sess *Session) error {
for _, m := range s.Modules {
if m.Running() == false {
continue
}
fmt.Printf("%s (%s)\n", core.Bold(m.Name()), core.Dim(m.Description()))
params := m.Parameters()
if len(params) > 0 {
fmt.Println()
for _, p := range params {
_, val := s.Env.Get(p.Name)
fmt.Printf(" %s : %s\n", core.Yellow(p.Name), val)
}
}
fmt.Println()
}
return nil
}
func (s *Session) exitHandler(args []string, sess *Session) error {
for _, mod := range s.Modules {
if mod.Running() {
mod.Stop()
}
}
s.Active = false
s.Input.Close()
return nil
}
func (s *Session) sleepHandler(args []string, sess *Session) error {
if secs, err := strconv.Atoi(args[0]); err == nil {
time.Sleep(time.Duration(secs) * time.Second)
return nil
} else {
return err
}
}
func (s *Session) getHandler(args []string, sess *Session) error {
key := args[0]
if key == "*" {
prev_ns := ""
fmt.Println()
for _, k := range s.Env.Sorted() {
ns := ""
toks := strings.Split(k, ".")
if len(toks) > 0 {
ns = toks[0]
}
if ns != prev_ns {
fmt.Println()
prev_ns = ns
}
fmt.Printf(" %"+strconv.Itoa(s.Env.Padding)+"s: '%s'\n", k, s.Env.Data[k])
}
fmt.Println()
} else if found, value := s.Env.Get(key); found == true {
fmt.Println()
fmt.Printf(" %s: '%s'\n", key, value)
fmt.Println()
} else {
return fmt.Errorf("%s not found", key)
}
return nil
}
func (s *Session) setHandler(args []string, sess *Session) error {
key := args[0]
value := args[1]
if value == "\"\"" {
value = ""
}
s.Env.Set(key, value)
return nil
}
func (s *Session) clsHandler(args []string, sess *Session) error {
// fixes a weird bug which causes the screen not to be fully
// cleared if a "clear; net.show" commands chain is executed
// in the interactive session.
for i := 0; i < 180; i++ {
fmt.Println()
}
readline.ClearScreen(s.Input.Stdout())
return nil
}
func (s *Session) includeHandler(args []string, sess *Session) error {
return s.RunCaplet(args[0])
}
func (s *Session) shHandler(args []string, sess *Session) error {
out, err := core.Shell(args[0])
if err == nil {
fmt.Printf("%s\n", out)
}
return err
}
func (s *Session) aliasHandler(args []string, sess *Session) error {
mac := args[0]
alias := core.Trim(args[1])
if s.Lan.SetAliasFor(mac, alias) == true {
return nil
} else {
return fmt.Errorf("Could not find endpoint %s", mac)
}
}
func (s *Session) addHandler(h CommandHandler, c *readline.PrefixCompleter) {
h.Completer = c
s.CoreHandlers = append(s.CoreHandlers, h)
}
func (s *Session) registerCoreHandlers() {
s.addHandler(NewCommandHandler("help MODULE",
"^(help|\\?)(.*)$",
"List available commands or show module specific help if no module name is provided.",
s.helpHandler),
readline.PcItem("help", readline.PcItemDynamic(func(prefix string) []string {
prefix = core.Trim(prefix[4:])
modNames := []string{""}
for _, m := range s.Modules {
if prefix == "" || strings.HasPrefix(m.Name(), prefix) == true {
modNames = append(modNames, m.Name())
}
}
return modNames
})))
s.addHandler(NewCommandHandler("active",
"^active$",
"Show information about active modules.",
s.activeHandler),
readline.PcItem("active"))
s.addHandler(NewCommandHandler("quit",
"^(q|quit|e|exit)$",
"Close the session and exit.",
s.exitHandler),
readline.PcItem("quit"))
s.addHandler(NewCommandHandler("sleep SECONDS",
"^sleep\\s+(\\d+)$",
"Sleep for the given amount of seconds.",
s.sleepHandler),
readline.PcItem("sleep"))
s.addHandler(NewCommandHandler("get NAME",
"^get\\s+(.+)",
"Get the value of variable NAME, use * for all.",
s.getHandler),
readline.PcItem("get", readline.PcItemDynamic(func(prefix string) []string {
prefix = core.Trim(prefix[3:])
varNames := []string{""}
for key := range s.Env.Data {
if prefix == "" || strings.HasPrefix(key, prefix) == true {
varNames = append(varNames, key)
}
}
return varNames
})))
s.addHandler(NewCommandHandler("set NAME VALUE",
"^set\\s+([^\\s]+)\\s+(.+)",
"Set the VALUE of variable NAME.",
s.setHandler),
readline.PcItem("set", readline.PcItemDynamic(func(prefix string) []string {
prefix = core.Trim(prefix[3:])
varNames := []string{""}
for key := range s.Env.Data {
if prefix == "" || strings.HasPrefix(key, prefix) == true {
varNames = append(varNames, key)
}
}
return varNames
})))
s.addHandler(NewCommandHandler("clear",
"^(clear|cls)$",
"Clear the screen.",
s.clsHandler),
readline.PcItem("clear"))
s.addHandler(NewCommandHandler("include CAPLET",
"^include\\s+(.+)",
"Load and run this caplet in the current session.",
s.includeHandler),
readline.PcItem("include", readline.PcItemDynamic(func(prefix string) []string {
prefix = core.Trim(prefix[8:])
if prefix == "" {
prefix = "."
}
files := []string{}
files, _ = filepath.Glob(prefix + "*")
return files
})))
s.addHandler(NewCommandHandler("! COMMAND",
"^!\\s*(.+)$",
"Execute a shell command and print its output.",
s.shHandler),
readline.PcItem("!"))
s.addHandler(NewCommandHandler("alias MAC NAME",
"^alias\\s+([a-fA-F0-9:]{17})\\s*(.*)",
"Assign an alias to a given endpoint given its MAC address.",
s.aliasHandler),
readline.PcItem("alias", readline.PcItemDynamic(func(prefix string) []string {
prefix = core.Trim(prefix[5:])
macs := []string{""}
s.Lan.EachHost(func(mac string, e *network.Endpoint) {
if prefix == "" || strings.HasPrefix(mac, prefix) == true {
macs = append(macs, mac)
}
})
return macs
})))
}