ftp client hangs in 229 Entering Extended Passive Mode (|||5844|)

[samoorai]

Describe the bug
As the title says when I trie to execute c.List("/") the application hangs indefinetely. I read that could be a firewall issue but when I try to connect to the FTP server through Filezilla everything works fine.

To Reproduce
My code is the following:

	c, err := ftp.Dial(
		os.Getenv("ftpserver"),
		ftp.DialWithExplicitTLS(
			&tls.Config{
				InsecureSkipVerify: true,
			},
		),
		ftp.DialWithDebugOutput(os.Stdout),
		ftp.DialWithTimeout(5*time.Second),
	)

	logErr(err)

	err = c.Login(os.Getenv("username"), os.Getenv("password"))

	logErr(err)

	fmt.Println(c.List("/"))

	if err := c.Quit(); err != nil {
		log.Fatal(err)
	}

Expected behavior
It should return the contents of the "/" dir

Debug output

220 (vsFTPd 3.0.3)
AUTH TLS
234 Proceed with negotiation.
USER user
331 Please specify the password.
PASS password
230 Login successful.
FEAT
211-Features:
 AUTH TLS
 UTF8
 EPRT
 EPSV
 MDTM
 PASV
 PBSZ
 PROT
 REST STREAM
 SIZE
 TVFS
211 End
TYPE I
200 Switching to Binary mode.
OPTS UTF8 ON
200 Always in UTF8 mode.
PBSZ 0
200 PBSZ set to 0.
PROT P
200 PROT now Private.
EPSV
229 Entering Extended Passive Mode (|||6669|)
[] context deadline exceeded
QUIT

[David Hait]

I have this same problem. Turning off EPSV, it hangs also in "Entering Passive Mode"

[Vitaliy F.]

Looks like (|||6669|) is an unexpected answer format...

[David Hait]

#253 Looks like the same issue. Downgrading to v0.0.0-20220301011324-fed5bc26b7fa solved it for me.

[Elias Daler]

Also seems related to #282
Try running this and see if the patch works for your cases as well.

go mod edit -replace github.com/jlaffaye/ftp/=github.com/ncw/ftp@2ead61ed085c02e810258109959144b5762b358d

[Zlatoslav Desyatnikov]

Same.
Downgrading to v0.0.0-20220301011324-fed5bc26b7fa solved it.

[Julien Laffaye]

Should be fixed with #283