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isPortOpen: use fastdialer instance #5452

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merged 1 commit into from
Jul 26, 2024
Merged

isPortOpen: use fastdialer instance #5452

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26 changes: 19 additions & 7 deletions pkg/js/global/scripts.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ package global

import (
"bytes"
"context"
"embed"
"math/rand"
"net"
Expand All @@ -12,8 +13,10 @@ import (
"github.com/logrusorgru/aurora"
"github.com/projectdiscovery/gologger"
"github.com/projectdiscovery/nuclei/v3/pkg/js/gojs"
"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/protocolstate"
"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/utils/vardump"
"github.com/projectdiscovery/nuclei/v3/pkg/types"
"github.com/projectdiscovery/utils/errkit"
errorutil "github.com/projectdiscovery/utils/errors"
stringsutil "github.com/projectdiscovery/utils/strings"
)
Expand Down Expand Up @@ -111,11 +114,16 @@ func initBuiltInFunc(runtime *goja.Runtime) {
},
Description: "isPortOpen checks if given TCP port is open on host. timeout is optional and defaults to 5 seconds",
FuncDecl: func(host string, port string, timeout ...int) (bool, error) {
timeoutInSec := 5
ctx := context.Background()
if len(timeout) > 0 {
timeoutInSec = timeout[0]
var cancel context.CancelFunc
ctx, cancel = context.WithTimeout(ctx, time.Duration(timeout[0])*time.Second)
defer cancel()
}
conn, err := net.DialTimeout("tcp", net.JoinHostPort(host, port), time.Duration(timeoutInSec)*time.Second)
if host == "" || port == "" {
return false, errkit.New("isPortOpen: host or port is empty")
}
conn, err := protocolstate.Dialer.Dial(ctx, "tcp", net.JoinHostPort(host, port))
if err != nil {
return false, err
}
Expand All @@ -131,16 +139,20 @@ func initBuiltInFunc(runtime *goja.Runtime) {
},
Description: "isUDPPortOpen checks if the given UDP port is open on the host. Timeout is optional and defaults to 5 seconds.",
FuncDecl: func(host string, port string, timeout ...int) (bool, error) {
timeoutInSec := 5
ctx := context.Background()
if len(timeout) > 0 {
timeoutInSec = timeout[0]
var cancel context.CancelFunc
ctx, cancel = context.WithTimeout(ctx, time.Duration(timeout[0])*time.Second)
defer cancel()
}
if host == "" || port == "" {
return false, errkit.New("isPortOpen: host or port is empty")
}
conn, err := net.DialTimeout("udp", net.JoinHostPort(host, port), time.Duration(timeoutInSec)*time.Second)
conn, err := protocolstate.Dialer.Dial(ctx, "udp", net.JoinHostPort(host, port))
if err != nil {
return false, err
}
_ = conn.Close()

return true, nil
},
})
Expand Down
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