空字符串响应curl PHP在https发布

Question

Posting on HTTPS API receives empty response. Before when using HTTP everything worked fine. But last week when 3rd party company changed the link to HTTPS everything has changed. I didn't receive the actual message I receives using HTTP. I made some research about it and I find out that php curl doesn't able to read the secured connection??? I asked the 3rd party company to provide the certificate they have in HTTPS so that I can include it on my working source code (Below) and test if I can receive any response, but I failed!!!! Here's my source code below. can someone help me about it? thanks

UPDATE Include the header

$headers = array(
// "Accept-Encoding: gzip, deflate",
"Content-Type: text/xml;charset=\"UTF-8\"",
"SOAPAction: \"http://tempuri.org/IAppMain/Post\"",
"Connection: Keep-Alive",
"Content-length: ".strlen($xml_post_string),
 ); 


$soap_do = curl_init();
set_time_limit(0);
curl_setopt($soap_do, CURLOPT_URL,            $url);  
curl_setopt($soap_do, CURLOPT_AUTOREFERER,    true); 
curl_setopt($soap_do, CURLOPT_MAXREDIRS,      10);   
curl_setopt($soap_do, CURLOPT_FOLLOWLOCATION, true); 
curl_setopt($soap_do, CURLOPT_RETURNTRANSFER, true ); 
curl_setopt($soap_do, CURLOPT_SSL_VERIFYPEER, false); 
curl_setopt($soap_do, CURLOPT_SSL_VERIFYHOST, 2); 
curl_setopt($soap_do, CURLOPT_CAINFO, APPPATH . "/RSA/BC/sslcertificateof.pem");
curl_setopt($soap_do, CURLOPT_POST,           true ); 
curl_setopt($soap_do, CURLOPT_POSTFIELDS,     $xml_post_string); 
curl_setopt($soap_do, CURLOPT_VERBOSE,        TRUE); 
curl_setopt($soap_do, CURLOPT_HTTPHEADER,     $headers);
curl_setopt($soap_do, CURLOPT_HEADER,         false);

// Converting
$response = curl_exec($soap_do); 
$error    = curl_error($soap_do);

if(curl_errno($soap_do))
{
    echo "Curl Failed: " . curl_errno($soap_do), "<br/>";
    echo curl_error($soap_do); 
} else {
    $dom = new DOMDocument();
    $dom->loadXML($response);   // Suppose if there's no error I will see an XML, but I get empty string.
}

Answer 1

You can try add it to php.ini

curl.cainfo=c:\path\to\cacert.pem

And setup curl_setopt_array

$options = array(
    CURLOPT_RETURNTRANSFER => true,     // return web page
    CURLOPT_HEADER         => false,    // don't return headers
    CURLOPT_FOLLOWLOCATION => true,     // follow redirects
    CURLOPT_ENCODING       => "",       // handle all encodings
    CURLOPT_USERAGENT      => "spider", // who am i
    CURLOPT_AUTOREFERER    => true,     // set referer on redirect
    CURLOPT_CONNECTTIMEOUT => 120,      // timeout on connect
    CURLOPT_TIMEOUT        => 120,      // timeout on response
    CURLOPT_MAXREDIRS      => 10,       // stop after 10 redirects
    CURLOPT_SSL_VERIFYPEER => false     // Disabled SSL Cert checks
);
curl_setopt_array( $soap_do, $options );

Give me your result in comment.

Answer 2

Try changing CURLOPT_SSL_VERIFYPEER to 0
And at the same time try initially setting CURLOPT_FOLLOWLOCATION to FALSE, so you can be 100% sure that you what part of the connect-process you are debugging.
And finaly: use a tool like Fiddler to monitor the traffic