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add some logs to tlsping

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Darien Raymond 2019-02-19 16:35:05 +01:00
parent c5cce8be6f
commit da8efb4afe
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1 changed files with 14 additions and 0 deletions
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14
infra/control/tlsping.go
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@ -2,6 +2,7 @@ package control
import (
"crypto/tls"
"crypto/x509"
"flag"
"fmt"
"net"
@ -22,6 +23,15 @@ func (c *TlsPingCommand) Description() Description {
}
}
func printCertificates(certs []*x509.Certificate) {
for _, cert := range certs {
if len(cert.DNSNames) == 0 {
continue
}
fmt.Println("Allowed domains: ", cert.DNSNames)
}
}
func (c *TlsPingCommand) Execute(args []string) error {
fs := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
ipStr := fs.String("ip", "", "IP address of the domain")
@ -53,6 +63,7 @@ func (c *TlsPingCommand) Execute(args []string) error {
}
fmt.Println("Using IP: ", ip.String())
fmt.Println("-------------------")
fmt.Println("Pinging without SNI")
{
tcpConn, err := net.DialTCP("tcp", nil, &net.TCPAddr{IP: ip, Port: 443})
@ -70,10 +81,12 @@ func (c *TlsPingCommand) Execute(args []string) error {
fmt.Println("Handshake failure: ", err)
} else {
fmt.Println("Handshake succeeded")
printCertificates(tlsConn.ConnectionState().PeerCertificates)
}
tlsConn.Close()
}
fmt.Println("-------------------")
fmt.Println("Pinging with SNI")
{
tcpConn, err := net.DialTCP("tcp", nil, &net.TCPAddr{IP: ip, Port: 443})
@ -91,6 +104,7 @@ func (c *TlsPingCommand) Execute(args []string) error {
fmt.Println("handshake failure: ", err)
} else {
fmt.Println("handshake succeeded")
printCertificates(tlsConn.ConnectionState().PeerCertificates)
}
tlsConn.Close()
}