Cannot get SOAP response from world server - php

Question

When using the following connection script:
<?php
ini_set('default_socket_timeout', 120);
$soap_connection_info = array(
'soap_uri' => 'urn:AC',
'soap_host' => '127.0.0.1',
'soap_port' => '7878',
'account_name' => 'acore',
'account_password' => 'password'
);
function RemoteCommandWithSOAP($username, $password, $COMMAND)
{
global $soap_connection_info;
$result = '';
try {
$conn = new SoapClient(NULL, array(
'location' => 'http://' . $soap_connection_info['soap_host'] . ':' . $soap_connection_info['soap_port'] . '/',
'uri' => $soap_connection_info['soap_uri'],
'style' => SOAP_RPC,
'login' => $username,
'password' => $password,
'compression' => SOAP_COMPRESSION_ACCEPT | SOAP_COMPRESSION_GZIP | SOAP_COMPRESSION_DEFLATE,
));
$result = $conn->executeCommand(new SoapParam($COMMAND, 'command'));
unset($conn);
} catch (Exception $e) {
$result = "\nHave error on soap!\n" . $e . "\n";
if (strpos($e, 'There is no such command') !== false) {
$result = 'There is no such command!';
}
}
return $result;
}
echo RemoteCommandWithSOAP($soap_connection_info['account_name'], $soap_connection_info['account_password'], ".server info");
?>
With the world server running and listening to port 7878, I get:
local-iMac $ php test.php
Have error on soap!
SoapFault exception: [HTTP] Error Fetching http headers in /Users/dan/dev/test.php:26
Stack trace:
#0 [internal function]: SoapClient->__doRequest('<?xml version="...', 'http://127.0.0....', 'urn:AC#executeC...', 1, false)
#1 /Users/dan/dev/test.php(26): SoapClient->__call('executeCommand', Array)
#2 /Users/dan/dev/test.php(39): RemoteCommandWithSOAP('acore', 'password', '.server info')
#3 {main}
I know error fetching headers points to a possible timeout when waiting for a response but this error comes up instantly as if there was no wait. However I added in the ini_set('default_socket_timeout', 120); in my script just to be sure.
My worldserver.conf:
# - the DB hostname will be the name of the database docker container
LoginDatabaseInfo = "ac-database;3306;root;password;acore_auth"
WorldDatabaseInfo = "ac-database;3306;root;password;acore_world"
CharacterDatabaseInfo = "ac-database;3306;root;password;acore_characters"
# Add more configuration overwrites by copying settings from worldserver.conf.dist
LogLevel = 5
Appender.File=2,5,7,debug.log,w
Logger.network.soap=5,File
Logger.server.worldserver=5,File
# Disable idle connections automatic kick since it doesn't work well on macOS + Docker
CloseIdleConnections = 0
Updates.EnableDatabases = 1
Death.SicknessLevel = -10
SOAP.Enabled = 1
SOAP.IP = "127.0.0.1"
SOAP.Port = 7878
And my docker-compose is unchanged:
https://github.com/azerothcore/azerothcore-wotlk/blob/master/docker-compose.yml
Interestingly if I down the world container I will get a different response as if it was connecting when it was up.
local-iMac $ php test.php
Have error on soap!
SoapFault exception: [HTTP] Could not connect to host in /Users/dan/dev/test.php:26
Stack trace:
#0 [internal function]: SoapClient->__doRequest('<?xml version="...', 'http://127.0.0....', 'urn:AC#executeC...', 1, false)
#1 /Users/dan/dev/test.php(26): SoapClient->__call('executeCommand', Array)
#2 /Users/dan/dev/test.php(39): RemoteCommandWithSOAP('acore', 'password', '.server info')
#3 {main}
Also I enabled worldserver logs to see what was going on in SOAP:
2021-09-23_20:41:17 INFO [server.worldserver] > Using configuration file /azerothcore/env/dist/etc/worldserver.conf
2021-09-23_20:41:17 INFO [server.worldserver] > Using SSL version: OpenSSL 1.1.1f 31 Mar 2020 (library: OpenSSL 1.1.1f 31 Mar 2020)
2021-09-23_20:41:17 INFO [server.worldserver] > Using Boost version: 1.71.0
2021-09-23_20:41:17 INFO [server.worldserver]
2021-09-23_20:41:17 INFO [server.worldserver] Process priority class set to -15
2021-09-23_20:41:31 INFO [network.soap] ACSoap: bound to http://127.0.0.1:7878
Also I know container is correctly listening to the port:
f166a28ffdf5 acore/ac-wotlk-worldserver-local:master "./acore.sh run-worl…" 3 weeks ago Up 48 minutes 0.0.0.0:7878->7878/tcp, :::7878->7878/tcp, 0.0.0.0:8085->8085/tcp, :::8085->8085/tcp azerothcore-wotlk_ac-worldserver_1
Some stats on my local:
MacOS Mojave 10.14.6
local-iMac $ docker -v
Docker version 20.10.7, build f0df350
local-iMac $ php -v
PHP 8.0.10 (cli) (built: Aug 26 2021 15:37:37) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.10, Copyright (c) Zend Technologies
with Zend OPcache v8.0.10, Copyright (c), by Zend Technologies

Answer 1

Docker acts like a DHCP server and assigns IP's to the containers. You need to check for what the 'local' IP is and that means 'local' to docker.
docker inspect <containerID> | grep IPAddress
That is the ip you need to bind to in your config.
SOAP.Enabled = 1
SOAP.IP = "172.19.0.3"
SOAP.Port = 7878