/**
* Creates a new encrypted button HTML block
*
* @param array The button parameters as key/value pairs
* @param string The file path to the EWP(merchant) certificate
* @param string The file path to the EWP(merchant) private key
* @param string The EWP(merchant) private key password
* @param string The file path to the PayPal Certificate
* @param string The URL where button will be posted
*
* @access public
* @static
*/
function encryptButton( $buttonParams_,
$ewpCertPath_,
$ewpPrivateKeyPath_,
$ewpPrivateKeyPwd_,
$paypalCertPath_,
$destinationUrl_)
{
/**
* serialize the button parameters' array to a string.
*/
$contentBytes = array();
foreach ($buttonParams_ as $name => $value) {
$contentBytes[] = "$name=$value";
}
$contentBytes = implode("\n", $contentBytes);
/**
* sign and encrypt the button parameters
*/
$encryptedDataReturn = PPCrypto::signAndEncrypt($contentBytes, $ewpCertPath_, $ewpPrivateKeyPath_, $ewpPrivateKeyPwd_, $paypalCertPath_);
if(!$encryptedDataReturn["status"]) {
return false;
}
/**
* Build and return encrypted blob
*/
$encryptedData = "-----BEGIN PKCS7-----".$encryptedDataReturn["encryptedData"]."-----END PKCS7-----";
return $encryptedData;
} // encryptButton
/**
* Creates a new encrypted button HTML block
*
* @param array The button parameters as key/value pairs
* @param string The file path to the EWP(merchant) certificate
* @param string The file path to the EWP(merchant) private key
* @param string The EWP(merchant) private key password
* @param string The file path to the PayPal Certificate
* @param string The URL where button will be posted
* @param string The URL of the button image
* @return array Contains a bool status, error_msg, error_no, and an encrypted string: encryptedButton if successfull
*
* @access public
* @static
*/
function encryptButton($buttonParams_, $ewpCertPath_, $ewpPrivateKeyPath_, $ewpPrivateKeyPwd_, $paypalCertPath_, $destinationUrl_, $buttonImageUrl_)
{
/**
* serialize the button parameters' array to a string.
*/
$contentBytes = array();
foreach ($buttonParams_ as $name => $value) {
$contentBytes[] = "{$name}={$value}";
}
$contentBytes = implode("\n", $contentBytes);
/**
* sign and encrypt the button parameters
*/
$encryptedDataReturn = PPCrypto::signAndEncrypt($contentBytes, $ewpCertPath_, $ewpPrivateKeyPath_, $ewpPrivateKeyPwd_, $paypalCertPath_);
if (!$encryptedDataReturn["status"]) {
return array("status" => false, "error_msg" => $encryptedDataReturn["error_msg"], "error_no" => $encryptedDataReturn["error_no"]);
}
/**
* Build and return HTML string
*/
$encryptedData = "-----BEGIN PKCS7-----" . $encryptedDataReturn["encryptedData"] . "-----END PKCS7-----";
$encryptedButton = <<<PPHTML
<FORM ACTION="{$destinationUrl_}/cgi-bin/webscr" METHOD="post">
<INPUT TYPE="hidden" NAME="cmd" VALUE="_s-xclick">
<INPUT TYPE="hidden" NAME="encrypted" VALUE="{$encryptedData}">
<INPUT TYPE="image" SRC="{$buttonImageUrl_}" BORDER="0" NAME="submit" ALT="Make Payments with PayPal -- it's fast, free and secure!">
</FORM>
PPHTML;
return array("status" => true, "encryptedButton" => $encryptedButton);
}
