Http Server - SWOOLE_HOOK_TCP - stream_socket_enable_crypto()

[smathersPersonal]

Hi there, Love the project. Ran into a bit of an issue and I'm stumped.

• I'm using your http server which is behind nginx.
• The problem is sending an email (Using PHPmailer) during an api call.
• I have the server setup like this:

$server = new Swoole\HTTP\Server('[::]', 9009);
$cpus = swoole_cpu_num();
$server->set([
  'reactor_num' => $cpus * 2,
  'worker_num' => $cpus * 8,
  'task_enable_coroutine' => true,
  'hook_flags' => SWOOLE_HOOK_TCP | SWOOLE_HOOK_NATIVE_CURL | SWOOLE_HOOK_SLEEP | SWOOLE_HOOK_BLOCKING_FUNCTION,
  'dispatch_mode' => 1
]);

• The reason for not using ALL hooks was because I'm not seeing great performance with it. I get the feeling its bouncing around between coroutines to much or something. Must be something with my application work flow, I do have lots of logging etc. I noticed not including this one makes a difference in speed: SWOOLE_HOOK_FILE
• Sending an email I spawn another coroutine using the go() command to run it async, then I see this during smtp:

2022-11-17 04:35:42.969 >> Api d-ivr01 123151 [INFO ] SMTP: Connection: opening to email-smtp.us-east-1.amazonaws.com:25, timeout=300, options=[]
2022-11-17 04:35:42.969 >> Api d-ivr01 123151 [INFO ] Sending email: smathers@???????.com Subject: sdas
2022-11-17 04:35:42.972 >> Api d-ivr01 123151 [INFO ] SMTP: Connection: opened
2022-11-17 04:35:42.974 >> Api d-ivr01 123151 [INFO ] SMTP: SMTP INBOUND: "220 email-smtp.amazonaws.com ESMTP SimpleEmailService-????????"
2022-11-17 04:35:42.974 >> Api d-ivr01 123151 [INFO ] SMTP: SERVER -> CLIENT: 220 email-smtp.amazonaws.com ESMTP SimpleEmailService-????????
2022-11-17 04:35:42.974 >> Api d-ivr01 123151 [INFO ]
2022-11-17 04:35:42.974 >> Api d-ivr01 123151 [INFO ] SMTP: CLIENT -> SERVER: EHLO d-ivr01
2022-11-17 04:35:42.974 >> Api d-ivr01 123151 [INFO ]
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ] SMTP: SMTP INBOUND: "250-email-smtp.amazonaws.com"
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ] SMTP: SMTP INBOUND: "250-8BITMIME"
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ] SMTP: SMTP INBOUND: "250-STARTTLS"
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ] SMTP: SMTP INBOUND: "250-AUTH PLAIN LOGIN"
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ] SMTP: SMTP INBOUND: "250 Ok"
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ] SMTP: SERVER -> CLIENT: 250-email-smtp.amazonaws.com
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ] 250-8BITMIME
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ] 250-STARTTLS
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ] 250-AUTH PLAIN LOGIN
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ] 250 Ok
2022-11-17 04:35:42.975 >> Api d-ivr01 123151 [INFO ]
2022-11-17 04:35:42.976 >> Api d-ivr01 123151 [INFO ] SMTP: CLIENT -> SERVER: STARTTLS
2022-11-17 04:35:42.976 >> Api d-ivr01 123151 [INFO ]
2022-11-17 04:35:42.977 >> Api d-ivr01 123151 [INFO ] SMTP: SMTP INBOUND: "220 Ready to start TLS"
2022-11-17 04:35:42.977 >> Api d-ivr01 123151 [INFO ] SMTP: SERVER -> CLIENT: 220 Ready to start TLS
2022-11-17 04:35:42.977 >> Api d-ivr01 123151 [INFO ]
2022-11-17 04:35:43.072 >> Api d-ivr01 123151 [INFO ] SMTP: CLIENT -> SERVER: QUIT
2022-11-17 04:35:43.072 >> Api d-ivr01 123151 [INFO ]
2022-11-17 04:35:43.074 >> Api d-ivr01 123151 [INFO ] SMTP: SMTP INBOUND: "221 Bye"
2022-11-17 04:35:43.074 >> Api d-ivr01 123151 [INFO ] SMTP: SERVER -> CLIENT: 221 Bye
2022-11-17 04:35:43.074 >> Api d-ivr01 123151 [INFO ]
2022-11-17 04:35:43.074 >> Api d-ivr01 123151 [INFO ] SMTP: Connection: closed

• If I remove the hook: SWOOLE_HOOK_TCP, it works. Problem is though I want that hook for the mysqli!!
• I looked through the the PHPmailer code and my best guess is there is an issue with stream_socket_enable_crypto and the streams hook or I've missed something.

Thanks!!

Server Info:

Swoole => enabled
Author => Swoole Team <team@swoole.com>
Version => 5.0.1-dev
Built => Nov 16 2022 22:29:32
coroutine => enabled with boost asm context
epoll => enabled
eventfd => enabled
signalfd => enabled
cpu_affinity => enabled
spinlock => enabled
rwlock => enabled
openssl => OpenSSL 1.1.1f  31 Mar 2020
dtls => enabled
http2 => enabled
json => enabled
pcre => enabled
zlib => 1.2.11
mutex_timedlock => enabled
pthread_barrier => enabled
futex => enabled
async_redis => enabled

Directive => Local Value => Master Value
swoole.enable_coroutine => On => On
swoole.enable_library => On => On
swoole.enable_preemptive_scheduler => Off => Off
swoole.display_errors => On => On
swoole.use_shortname => On => On
swoole.unixsock_buffer_size => 8388608 => 8388608

Linux d-ivr01 5.15.0-1022-aws #26~20.04.1-Ubuntu SMP Sat Oct 15 03:23:19 UTC 2022 aarch64 aarch64 aarch64 GNU/Linux
PHP 8.0.3 (cli) (built: Jan 20 2022 03:43:11) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.3, Copyright (c) Zend Technologies
    with Zend OPcache v8.0.3, Copyright (c), by Zend Technologies
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/aarch64-linux-gnu/9/lto-wrapper
Target: aarch64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 9.4.0-1ubuntu1~20.04.1' --with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,gm2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-9 --program-prefix=aarch64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --enable-fix-cortex-a53-843419 --disable-werror --enable-checking=release --build=aarch64-linux-gnu --host=aarch64-linux-gnu --target=aarch64-linux-gnu
Thread model: posix
gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1)

[Draghmar]

I run into the same issue, also with SES. I was wandering if it's related to the Swoole and some hook. The only difference for me is using task for sending. But the smtp log looks exactly the same.

[matyhtf]

SMTP uses the startSSL feature to dynamically enable encryption. There may be some problems with swoole hook support here. I am working to fix it

[TorstenDittmann]

Running into the same issue 👍🏻

[ging-dev]

Looking forward to this feature

[Draghmar]

@matyhtf Hey, do you think there's a chance to get this fixed? I'm asking because I suddenly got task to do where I will need to send e-mail from within api. Up until now I've manage to mitigate this by sending e-mail from different env. Now it won't be possible. So I'd love to be able to send this without have to find some quirk workaround. ;)