/
tcp_port_scanner.go
54 lines (46 loc) · 1.29 KB
/
tcp_port_scanner.go
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package agents
import (
"fmt"
"net"
"time"
"github.com/shelld3v/aquatone/core"
)
type TCPPortScanner struct {
session *core.Session
}
func NewTCPPortScanner() *TCPPortScanner {
return &TCPPortScanner{}
}
func (d *TCPPortScanner) ID() string {
return "agent:tcp_port_scanner"
}
func (a *TCPPortScanner) Register(s *core.Session) error {
s.EventBus.SubscribeAsync(core.Host, a.OnHost, false)
a.session = s
return nil
}
func (a *TCPPortScanner) OnHost(host string) {
a.session.Out.Debug("[%s] Received new host: %s\n", a.ID(), host)
for _, port := range a.session.Ports {
a.session.WaitGroup.Add()
go func(port int, host string) {
defer a.session.WaitGroup.Done()
if a.scanPort(port, host) {
a.session.Stats.IncrementPortOpen()
a.session.Out.Info("%s: %s\n", host, Green(fmt.Sprintf("%d/tcp open", port)))
a.session.EventBus.Publish(core.TCPPort, port, host)
} else {
a.session.Stats.IncrementPortClosed()
a.session.Out.Debug("[%s] Port %d is closed on %s\n", a.ID(), port, host)
}
}(port, host)
}
}
func (a *TCPPortScanner) scanPort(port int, host string) bool {
conn, _ := net.DialTimeout("tcp", fmt.Sprintf("%s:%d", host, port), time.Duration(a.session.Options.ScanTimeout)*time.Millisecond)
if conn != nil {
conn.Close()
return true
}
return false
}