ID: 49295
Updated by: srinatar@php.net
Reported By: frase at cs dot wisc dot edu
Status: Assigned
Bug Type: OpenSSL related
Operating System: Win 2000 Pro SP4
PHP Version: 5.2.11RC1
Assigned To: srinatar
New Comment:
just a follow up note, this issue (async not working consistently with
openssl on windows) has always been the case and this issue has nothing
to do with the fix that went in for bug:48182.
Previous Comments:
------------------------------------------------------------------------
[2009-09-02 08:09:22] srinatar@php.net
ok, i was looking into this issue today. the issue is that ,
especially on windows -where sockets are not file descriptors unlike
in unix, async sockets and openssl works together only if we use BIO
wrappers provided by openssl module instead of directly accessing
underlying sockets as file descriptors.
the possible right way to do this would be to use to socket wrappers
provided by SSL module (known as BIO wrappers which makes it work
properly on windows).
this will require some amount of fiddling our openssl module. i don't
think, 5.2 is a good place to do this change.
for now, commenting this below code should help you to run your script
properly on windows.
stream_set_blocking($socket, 0);
i will spend more time on this and investigate on the best way to use
BIO wrappers within existing openssl module say within php 5.3
------------------------------------------------------------------------
[2009-08-21 15:05:47] frase at cs dot wisc dot edu
I had a chance to compile and test PHP5.2.11RC1 under Linux this
morning (Ubuntu Jaunty, Apache 2.2.11 from repositories), and these
warnings do not appear, however I noticed another problem.
Although the SSL+async connection is successful and data is returned
under Linux, the socket is not actually opened asynchonously. The
script blocks until the socket has finished opening, exactly as it does
without the ASYNC flag. This is also true under Windows, for the first
run -- after that, of course, it returns the errors posted above.
------------------------------------------------------------------------
[2009-08-21 01:15:44] srinatar@php.net
this issue seems to be happening when this script is executed more than
once and also seems to be happening only on windows.
------------------------------------------------------------------------
[2009-08-19 13:52:18] frase at cs dot wisc dot edu
Description:
------------
stream_socket_client() can only open one socket using SSL and the
STREAM_CLIENT_ASYNC_CONNECT flag, and then fails every time until the
Apache process is restarted. SSL sockets without ASYNC open fine, as do
plain TCP sockets with or without ASYNC.
Originally reported as an update to bug #48182, which also only
affected the combination of SSL+ASYNC, but now reported separately here
per srinatar@php.net's request.
Additionally, the timeout (argument #4 to stream_socket_client()) is
not ignored when using ASYNC, contrary to the manual: if set to 0 here,
the first warning is "SSL: connection timeout" instead of "SSL: The
operation completed successfully."
Windows 2000 Professional SP4
Apache 2.2.11
PHP 5.2.11RC1-Win32-VC6-x86 (threadsafe binary from
http://windows.php.net/qa/)
configured as an Apache module
with php_openssl.dll and libeay32.dll+ssleay.dll v0.9.8k
Reproduce code:
---------------
<?php
header('Content-Type: text/plain');
$errno = null;
$errstr = null;
$socket = stream_socket_client(
'ssl://'.gethostbyname('launchpad.net').':443', $errno, $errstr,
10, // timeout should be ignored when ASYNC
STREAM_CLIENT_CONNECT | STREAM_CLIENT_ASYNC_CONNECT
);
if (!$socket) {
echo "errno = ".$errno."\nerrstr = ".$errstr."\n";
exit;
}
stream_set_blocking($socket, 0);
$data = "GET / HTTP/1.0\r\nHost: launchpad.net\r\nConnection:
close\r\n\r\n";
$selR = null;
$selW = array();
$selE = null;
while ($data) {
$selW[0] = $socket;
if (stream_select($selR, $selW, $selE, 10)) {
$wrote = fwrite($socket, $data, strlen($data));
$data = substr($data, $wrote);
}
}
$html = "";
$selR = array($socket);
$selW = null;
while (!feof($socket)) {
$selR[0] = $socket;
if (stream_select($selR, $selW, $selE, 10))
$html .= fread($socket, 8192);
}
fclose($socket);
echo "OK!\n----------\n".$html;
Expected result:
----------------
OK!
----------
(HTTP headers and content from launchpad.net)
Actual result:
--------------
Warning: stream_socket_client() [function.stream-socket-client]: SSL:
The operation completed successfully. in test-async-ssl.php on line 8
Warning: stream_socket_client() [function.stream-socket-client]: Failed
to enable crypto in test-async-ssl.php on line 8
Warning: stream_socket_client() [function.stream-socket-client]: unable
to connect to ssl://91.189.90.211:443 (Unknown error) in
test-async-ssl.php on line 8
errno = 10035 errstr =
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=49295&edit=1