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Using PHP Curl SSL

Posted on 2013-01-22
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Last Modified: 2013-02-11
I am testing the ssl connection , but I am not able to connect to the server from url, https://servicos.portaldasfinancas.gov.pt:700/fews/faturas. I have convert a PFX file to PEM file.
 My Test code is following :


////////////////////  test connection script/////////////////////////////////

public function process($url)
    {
        $soap = curl_init();


        curl_setopt($soap, CURLOPT_URL, "https://servicos.portaldasfinancas.gov.pt:700/fews/faturas");
        curl_setopt($soap, CURLOPT_SSLCERT ,  "C:\wwwroot\www-php\projects\foxfact\TestesWebServices.pem" );
        curl_setopt($soap, CURLOPT_SSLKEY ,  "C:\wwwroot\www-php\projects\foxfact\Testes__Web_Services_key" );
        curl_setopt($soap, CURLOPT_SSLKEYPASSWD ,  "TESTEwebservice" );
        curl_setopt($soap, CURLOPT_SSLVERSION, 3);
        curl_setopt($soap, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($soap, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($soap, CURLOPT_CONNECTTIMEOUT, 20);
        curl_setopt($soap, CURLOPT_TIMEOUT,        15);
        curl_setopt($soap, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($soap, CURLOPT_POST,           true);
        curl_setopt($soap, CURLOPT_POSTFIELDS,     $this->xml);
        curl_setopt($soap, CURLOPT_HTTPHEADER,     $this->headers);

        $result = curl_exec($soap);

        if (curl_errno($soap) > 0) {
            $result = array('errocurl' => curl_errno($soap), 'msgcurl' => curl_error($soap));
            echo curl_error($soap);
            // $result = false;
        }

        curl_close($soap);

        return $result;

    }
}

The error message I have in browser is following:
Curl Error : unable to use client certificate (no key found or wrong pass phrase?)
Can you have a look and advise me  where I am getting wrong.

Best Regards
Lucilia Coelho
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Question by:luciliacoelho
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7 Comments
 
LVL 36

Expert Comment

by:gr8gonzo
ID: 38805583
Try using forward slashes in your paths on Windows, like:

C:/path/to/key.pem

Backslashes are also escape characters when they're inside of double quotes, so PHP can think that "C:\path\to\key.pem" is actually "C:pathtokey.pem". Alternatively, if you want to use backslashes, just use two of them like "C:\\path\\to\\key.pem"
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Author Comment

by:luciliacoelho
ID: 38805656
I tried the two way but now gives the error message in browser: Unknown SSL protocol error in connection to...
Can you help me with this?
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LVL 36

Expert Comment

by:gr8gonzo
ID: 38805710
Try setting  curl_setopt($soap, CURLOPT_SSLVERSION, 3); to 2 instead of 3.
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LVL 36

Accepted Solution

by:
gr8gonzo earned 2000 total points
ID: 38805756
Actually, it's also possible that the client cert auth isn't working. Double-check to make sure the client cert also doesn't need a password with:

 curl_setopt($soap, CURLOPT_SSLCERTPASSWD, "TESTEwebservice");

It all depends on your certificate (especially if the certificate file contains a key in it).
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Author Comment

by:luciliacoelho
ID: 38805848
I change setting  curl_setopt($soap, CURLOPT_SSLVERSION, 2) and become Curl Error : unable to use client certificate (no key found or wrong pass phrase?).
Use  curl_setopt($soap, CURLOPT_SSLCERTPASSWD, "TESTEwebservice") and error is the same.
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LVL 36

Expert Comment

by:gr8gonzo
ID: 38806228
Try concatenating the key onto the cert, so that your cert file looks like:

-----BEGIN CERTIFICATE-----
contents of certificate
-----END CERTIFICATE-----
-----BEGIN RSA PRIVATE KEY-----
contents of key
-----END RSA PRIVATE KEY-----
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Author Comment

by:luciliacoelho
ID: 38806242
Can you show me one example please.
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