Zend_XmlRpc and base64

Hi,

I’m using Zend Framework 1.0.2, and I’m trying to use the Zend_XmlRpc server and client for a method with 1 parameter, which is an image.

I think that has to be sent as a base64 encoded string.

So I wrote a test method like this to expose on the server :

/**

       * Enter description here...

       *

       * @param base64 $data

       * @return base64

       */

      public function setAvatar($data) {

            return $data;

      }

Now when I try to call that function using Zend_XmlRpc_Client using the following code :

$client = new Zend_XmlRpc_Client("…");

$avatar = array(

            'type' => 'base64',

            'value' => file_get_contents('avatar.jpg')

      );

      $response = $client->call("setAvatar", array($avatar));

I get the fault :

      Calling parameters do not match signature

What I did client side to solve the problem:

-          First I tried setting the parameter like this :
$avatar = Zend_XmlRpc_Value::getXmlRpcValue('file_get_contents('avatar.jpg')', Zend_XmlRpc_Value::XMLRPC_TYPE_BASE64);
$response = $client->call("setAvatar", array($avatar));
But that didn’t work.
The setParams() function of Zend_XmlRpc_Request does not recognize the type and sends it as an empty array.

-          Once I got the first problem figured out  it sent an empty base64 parameter.
This was because of the saveXML function of Zend_XmlRpc_Value_Scalar which did the following to put the value in the XML :
$type->appendChild($dom->createTextNode($this->getValue()));
But the getValue() function decodes the base64 which results in binary.
Changing that into :
$type->appendChild($dom->createTextNode($this->_value));
Solved the problem.

That resulted in a correct request.

But I still got the fault :

                Calling parameters do not match signature

So I started investigating the server side.

I noticed that the type “base64” was lost and replaced with string by the time the parameters were checked against the signature of the method.

But the base64 was also decoded by that time, so I changed the docblock of the function into :

/**

       * Enter description here...

       *

       * @param string $data

       * @return base64

       */

      public function setAvatar($data) {

            return $data;

      }

And that did the trick to remove the fault (Calling parameters do not match signature).

Only the response was sent as string, instead of base64.

But luckily I don’t need that, I’ll just return a Boolean.

Is all this a bug, or am I just doing something wrong?

Regards,