Re: LWP hangs forever with get
Jesper Persson <[email protected]> Wed, 21 May 2014 21:10:14 +0200
| Newsgroups | gmane.comp.lang.perl.modules.lwp |
|---|---|
| Message-ID | <CA+uC3V2rzo8SKbnVvL7sCVXF0k3CiFUN=uMCFqBSqHM=pijs-Q@mail.gmail.com> |
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Well I do set the $ENV{PERL_LWP_SSL_VERIFY_HOSTNAME} = 0; so I guess the
change shouldn't affect me.
perl code
-----------------------------------
use LWP::Simple qw($ua get);
use IO::Socket::SSL qw(debug3);
$ua->timeout(5);
$ENV{PERL_LWP_SSL_VERIFY_HOSTNAME} = 1;
$contents = get("https://www.butler.edu/boa/default.aspx");
-----------------------------------
with the perl version that doesnt hang:
strawberry perl 5.18.1.1
libwww-perl-6.05
DEBUG: .../IO/Socket/SSL.pm:1805: new ctx 39861360
DEBUG: .../IO/Socket/SSL.pm:449: socket not yet connected
DEBUG: .../IO/Socket/SSL.pm:451: socket connected
DEBUG: .../IO/Socket/SSL.pm:469: ssl handshake not started
DEBUG: .../IO/Socket/SSL.pm:504: using SNI with hostname www.butler.edu
DEBUG: .../IO/Socket/SSL.pm:527: set socket to non-blocking to enforce
timeout=5
DEBUG: .../IO/Socket/SSL.pm:540: Net::SSLeay::connect -> -1
DEBUG: .../IO/Socket/SSL.pm:550: ssl handshake in progress
DEBUG: .../IO/Socket/SSL.pm:560: waiting for fd to become ready: SSL wants
a read first
DEBUG: .../IO/Socket/SSL.pm:570: handshake failed because socket did not
became ready
DEBUG: .../IO/Socket/SSL.pm:1842: free ctx 39861360 open=39861360
DEBUG: .../IO/Socket/SSL.pm:1847: free ctx 39861360 callback
DEBUG: .../IO/Socket/SSL.pm:1850: OK free ctx 39861360
NO HANG :-)
with the perl version that hangs:
strawberry 5.18.2.2
libwww-perl-6.05
DEBUG: .../IO/Socket/SSL.pm:2137: new ctx 49554496
DEBUG: .../IO/Socket/SSL.pm:478: socket not yet connected
DEBUG: .../IO/Socket/SSL.pm:480: socket connected
DEBUG: .../IO/Socket/SSL.pm:498: ssl handshake not started
DEBUG: .../IO/Socket/SSL.pm:528: using SNI with hostname www.butler.edu
DEBUG: .../IO/Socket/SSL.pm:566: set socket to non-blocking to enforce
timeout=5
DEBUG: .../IO/Socket/SSL.pm:579: Net::SSLeay::connect -> -1
DEBUG: .../IO/Socket/SSL.pm:589: ssl handshake in progress
DEBUG: .../IO/Socket/SSL.pm:599: waiting for fd to become ready: SSL wants
a read first
DEBUG: .../IO/Socket/SSL.pm:619: socket ready, retrying connect
DEBUG: .../IO/Socket/SSL.pm:2098: ok=1 cert=53220176
DEBUG: .../IO/Socket/SSL.pm:2098: ok=1 cert=60570800
DEBUG: .../IO/Socket/SSL.pm:2098: ok=1 cert=60570608
DEBUG: .../IO/Socket/SSL.pm:1339: scheme=www cert=60570608
DEBUG: .../IO/Socket/SSL.pm:1348: identity=www.butler.edu
cn=www.butler.edualt=2
www.butler.edu 2 butler.edu
DEBUG: .../IO/Socket/SSL.pm:579: Net::SSLeay::connect -> -1
DEBUG: .../IO/Socket/SSL.pm:589: ssl handshake in progress
DEBUG: .../IO/Socket/SSL.pm:599: waiting for fd to become ready: SSL wants
a read first
DEBUG: .../IO/Socket/SSL.pm:619: socket ready, retrying connect
DEBUG: .../IO/Socket/SSL.pm:579: Net::SSLeay::connect -> 1
DEBUG: .../IO/Socket/SSL.pm:634: ssl handshake done
HANGS FOREVER :-(
/Jesper
On 21 May 2014 19:03, Tom Hukins <[email protected]> wrote:
> On Wed, May 21, 2014 at 06:57:58PM +0200, Jesper Persson wrote:
> > this perl code
> > ------------------------------------------
> > use LWP::Simple qw($ua get);
> > $ua->timeout(5);
> > $ENV{PERL_LWP_SSL_VERIFY_HOSTNAME} = 0;
> > $contents = get("https://www.butler.edu/boa/default.aspx");
> > ------------------------------------------
> >
> > just tried fresh perl installs.
> >
> > strawberry perl 5.16.3.1: doesnt hang.
> >
> > strawberry perl 5.18.0.1: doesnt hang.
> >
> > strawberry perl 5.18.1.1: doesnt hang.
> >
> > strawberry perl 5.18.2.1: hangs.
> >
> > strawberry perl 5.18.2.2: hangs.
>
> I expect you're using different versions of LWP with these different
> versions of Perl and you're encountering the change documented at
> https://metacpan.org/pod/LWP#PERL_LWP_SSL_VERIFY_HOSTNAME
>
> Tom
>
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Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">Well I do set the=C2=A0<span style=3D"color:rgb(80,0,80);f=
ont-family:arial,sans-serif;font-size:13px">$ENV{PERL_LWP_SSL_VERIFY_</span=
><span style=3D"color:rgb(80,0,80);font-family:arial,sans-serif;font-size:1=
3px">HOSTNAME} =3D 0;</span>=C2=A0so I guess the change shouldn't affec=
t me.<div>
<br></div><div>perl code</div><div>-----------------------------------</div=
><div><div>use LWP::Simple qw($ua get);</div><div>use IO::Socket::SSL qw(de=
bug3);</div><div>$ua->timeout(5);</div><div>$ENV{PERL_LWP_SSL_VERIFY_HOS=
TNAME} =3D 1;</div>
<div>$contents =3D get("<a href=3D"https://www.butler.edu/boa/default.=
aspx">https://www.butler.edu/boa/default.aspx</a>");</div></div><div>-=
----------------------------------<br></div><div><br></div><div>with the pe=
rl version that doesnt hang:</div>
<div><br></div><div><div>strawberry perl 5.18.1.1</div><div>libwww-perl-6.0=
5</div><div><br></div><div>DEBUG: .../IO/Socket/SSL.pm:1805: new ctx 398613=
60</div><div>DEBUG: .../IO/Socket/SSL.pm:449: socket not yet connected</div=
>
<div>DEBUG: .../IO/Socket/SSL.pm:451: socket connected</div><div>DEBUG: ...=
/IO/Socket/SSL.pm:469: ssl handshake not started</div><div>DEBUG: .../IO/So=
cket/SSL.pm:504: using SNI with hostname <a href=3D"http://www.butler.edu">=
www.butler.edu</a></div>
<div>DEBUG: .../IO/Socket/SSL.pm:527: set socket to non-blocking to enforce=
timeout=3D5</div><div>DEBUG: .../IO/Socket/SSL.pm:540: Net::SSLeay::connec=
t -> -1</div><div>DEBUG: .../IO/Socket/SSL.pm:550: ssl handshake in prog=
ress</div>
<div>DEBUG: .../IO/Socket/SSL.pm:560: waiting for fd to become ready: SSL w=
ants a read first</div><div>DEBUG: .../IO/Socket/SSL.pm:570: handshake fail=
ed because socket did not became ready</div><div>DEBUG: .../IO/Socket/SSL.p=
m:1842: free ctx 39861360 open=3D39861360</div>
<div>DEBUG: .../IO/Socket/SSL.pm:1847: free ctx 39861360 callback</div><div=
>DEBUG: .../IO/Socket/SSL.pm:1850: OK free ctx 39861360</div><div><br></div=
><div>NO HANG :-)</div></div><div><br></div><div>with the perl version that=
hangs:</div>
<div><br></div><div><div>strawberry 5.18.2.2</div><div>libwww-perl-6.05</di=
v><div>DEBUG: .../IO/Socket/SSL.pm:2137: new ctx 49554496</div><div>DEBUG: =
.../IO/Socket/SSL.pm:478: socket not yet connected</div><div>DEBUG: .../IO/=
Socket/SSL.pm:480: socket connected</div>
<div>DEBUG: .../IO/Socket/SSL.pm:498: ssl handshake not started</div><div>D=
EBUG: .../IO/Socket/SSL.pm:528: using SNI with hostname <a href=3D"http://w=
ww.butler.edu">www.butler.edu</a></div><div>DEBUG: .../IO/Socket/SSL.pm:566=
: set socket to non-blocking to enforce timeout=3D5</div>
<div>DEBUG: .../IO/Socket/SSL.pm:579: Net::SSLeay::connect -> -1</div><d=
iv>DEBUG: .../IO/Socket/SSL.pm:589: ssl handshake in progress</div><div>DEB=
UG: .../IO/Socket/SSL.pm:599: waiting for fd to become ready: SSL wants a r=
ead first</div>
<div>DEBUG: .../IO/Socket/SSL.pm:619: socket ready, retrying connect</div><=
div>DEBUG: .../IO/Socket/SSL.pm:2098: ok=3D1 cert=3D53220176</div><div>DEBU=
G: .../IO/Socket/SSL.pm:2098: ok=3D1 cert=3D60570800</div><div>DEBUG: .../I=
O/Socket/SSL.pm:2098: ok=3D1 cert=3D60570608</div>
<div>DEBUG: .../IO/Socket/SSL.pm:1339: scheme=3Dwww cert=3D60570608</div><d=
iv>DEBUG: .../IO/Socket/SSL.pm:1348: identity=3D<a href=3D"http://www.butle=
r.edu">www.butler.edu</a> cn=3D<a href=3D"http://www.butler.edu">www.butler=
.edu</a> alt=3D2 <a href=3D"http://www.butler.edu">www.butler.edu</a> 2 <a =
href=3D"http://butler.edu">butler.edu</a></div>
<div>DEBUG: .../IO/Socket/SSL.pm:579: Net::SSLeay::connect -> -1</div><d=
iv>DEBUG: .../IO/Socket/SSL.pm:589: ssl handshake in progress</div><div>DEB=
UG: .../IO/Socket/SSL.pm:599: waiting for fd to become ready: SSL wants a r=
ead first</div>
<div>DEBUG: .../IO/Socket/SSL.pm:619: socket ready, retrying connect</div><=
div>DEBUG: .../IO/Socket/SSL.pm:579: Net::SSLeay::connect -> 1</div><div=
>DEBUG: .../IO/Socket/SSL.pm:634: ssl handshake done</div><div><br></div>
<div>HANGS FOREVER :-(</div></div><div><br></div><div>/Jesper</div><div><br=
></div></div><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">=
On 21 May 2014 19:03, Tom Hukins <span dir=3D"ltr"><<a href=3D"mailto:to=
[email protected]" target=3D"_blank">[email protected]</a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div class=3D"">On Wed, May 21, 2014 at 06:5=
7:58PM +0200, Jesper Persson wrote:<br>
> this perl code<br>
> ------------------------------------------<br>
> use LWP::Simple qw($ua get);<br>
> $ua->timeout(5);<br>
> $ENV{PERL_LWP_SSL_VERIFY_HOSTNAME} =3D 0;<br>
> $contents =3D get("<a href=3D"https://www.butler.edu/boa/default.=
aspx" target=3D"_blank">https://www.butler.edu/boa/default.aspx</a>");=
<br>
> ------------------------------------------<br>
><br>
> just tried fresh perl installs.<br>
><br>
> strawberry perl <a href=3D"http://5.16.3.1" target=3D"_blank">5.16.3.1=
</a>: =C2=A0doesnt hang.<br>
><br>
> strawberry perl <a href=3D"http://5.18.0.1" target=3D"_blank">5.18.0.1=
</a>: =C2=A0doesnt hang.<br>
><br>
> strawberry perl <a href=3D"http://5.18.1.1" target=3D"_blank">5.18.1.1=
</a>: =C2=A0doesnt hang.<br>
><br>
> strawberry perl <a href=3D"http://5.18.2.1" target=3D"_blank">5.18.2.1=
</a>: =C2=A0hangs.<br>
><br>
> strawberry perl <a href=3D"http://5.18.2.2" target=3D"_blank">5.18.2.2=
</a>: =C2=A0hangs.<br>
<br>
</div>I expect you're using different versions of LWP with these differ=
ent<br>
versions of Perl and you're encountering the change documented at<br>
<a href=3D"https://metacpan.org/pod/LWP#PERL_LWP_SSL_VERIFY_HOSTNAME" targe=
t=3D"_blank">https://metacpan.org/pod/LWP#PERL_LWP_SSL_VERIFY_HOSTNAME</a><=
br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
Tom<br>
</font></span></blockquote></div><br></div>
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