onionscan/protocol/ftp_scanner.go

38 lines
1009 B
Go

package protocol
import (
"bufio"
"crypto/sha1"
"encoding/hex"
"fmt"
"github.com/s-rah/onionscan/config"
"github.com/s-rah/onionscan/report"
"github.com/s-rah/onionscan/utils"
)
type FTPProtocolScanner struct {
}
func (sps *FTPProtocolScanner) ScanProtocol(hiddenService string, osc *config.OnionscanConfig, report *report.OnionScanReport) {
// FTP
osc.LogInfo(fmt.Sprintf("Checking %s FTP(21)\n", hiddenService))
conn, err := utils.GetNetworkConnection(hiddenService, 21, osc.TorProxyAddress, osc.Timeout)
if err != nil {
osc.LogInfo("Failed to connect to service on port 21\n")
report.FTPDetected = false
} else {
report.FTPDetected = true
reader := bufio.NewReader(conn)
banner, err := reader.ReadString('\n')
if err == nil {
report.FTPBanner = banner
hash := sha1.Sum([]byte(banner))
report.FTPFingerprint = hex.EncodeToString(hash[:])
osc.LogInfo(fmt.Sprintf("Found FTP Banner: %s (%s)", banner, report.FTPFingerprint))
}
}
if conn != nil {
conn.Close()
}
}