Bad request while getting WSDL with SoapClient through proxy in PHP - php

Question

I have two servers : one is used for development and can access to the WEB easily but another one for production which can access to the WEB only using a proxy.
I would like to call a SOAP WEB service from my production server.
So following is the code (the URLs are fake):
$url = 'https://www.webservice.com/soap.php';
$wsdl = 'https://www.webservice.com/soap.php?wsdl';
$client = new SoapClient
(
$wsdl,
array
(
'location' => $url,
'proxy_host' => 'www.myproxy.com',
'proxy_port' => 8080,
)
);
$namespace = 'urn:mynamespace';
$header = array
(
'header1' => 'H1',
'header2' => 'H2',
'header3' => 'H3',
);
$client->__setSoapHeaders(new SoapHeader($namespace, 'myHeader', $header));
$params = array
(
'param1' => 'val1',
'param2' => 'val2',
'param3' => 'val3',
);
$result = $client->method($params);
I run it from my development server and I get the expected result.
Now I run it from my production server and I get :
PHP Warning: SoapClient::SoapClient(https://www.webservice.com/soap.php?wsdl): failed to open stream: HTTP request failed! HTTP/1.1 400 Bad Request
PHP Warning: SoapClient::SoapClient(): I/O warning : failed to load external entity "https://www.webservice.com/soap.php?wsdl" in /home/benji/test.php on line 20
PHP Fatal error: SOAP-ERROR: Parsing WSDL: Couldn't load from 'https://www.webservice.com/soap.php?wsdl' : failed to load external entity "https://www.webservice.com/soap.php?wsdl"
When I wget the wsdl from the production server, it's working:
$ https_proxy=www.myproxy.com wget https://www.webservice.com/soap.php?wsdl
--2013-02-22 10:57:40-- https://www.webservice.com/soap.php?wsdl
Resolving www.myproxy.com... 10.0.0.125
Connecting to www.myproxy.com|10.0.0.125|:8080... connected.
Proxy request sent, awaiting response... 200 OK
Length: unspecified [text/xml]
Saving to: `soap.php?wsdl'
[ <=> ] 9 010 --.-K/s in 0,009s
2013-02-22 10:57:40 (980 KB/s) - `soap.php?wsdl' saved [9010]

Answer 1

The following solution solved the described problem for me:
create a new stream context where you also specify your proxy information
for the stream context set option SNI_enabled to false
pass the stream context as new parameter in the options array to the soapclient
$context = stream_context_create(
array(
'ssl' => array(
'SNI_enabled' => false
),
'http' => array(
'proxy' => 'tcp://yourproxy.com:9999'
)
)
);
$soapOptions = array(
'stream_context' => $context
);
$soapClient = new SoapClient( 'wsdl.path', $soapOptions );