Tutorial/Guide | Dimuthu's Blog

January 5th, 2009Article Introducing PHP Data Services

Now you can view the article I wrote titling “Introduction to PHP Data Services“. There I explain how you can design and implement Data Services in PHP using WSF/PHP Data Services Library.

This article covers,

Designing your Data Service API.
Writing the Data Service.
Deploying and Testing Data Service.
Make the Data Service available in both SOAP and RESTful form.
Use of WS-* features in your Data Service.

If you are thinking of adapting SOA in to your database backed PHP applications, this article will be a good starting point.

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DataServices, REST, RESTful, SOA, SQL, Tutorial/Guide, WSDL, database, design, php, web services, wsf/php, wso2, xml No Comments »

December 27th, 2008PHP Web Services - Authentication Based on Client’s IP

Same as web pages, web services also sometime require client authentication. The most frequent way of authentication is the use of WS-Security Username token which authenticate clients based on the username and passwords. There can be situations where clients need to be authenticated based on its IP or its domain.

If you are writing web services from PHP (Using some PHP web service framework like WSF/PHP), You can use the PHP variables, $_SERVER["REMOTE_ADDR"] and $_SERVER["REMOTE_HOST"] to find the clients ip within the service logic code. If the client’s IP is static you can directly use the $_SERVER["REMOTE_ADDR"] and if it is dynamic you can use the $_SERVER["REMOTE_HOST"] which will be derived by reverse DNS look of the clients IP.

Here is one example of the use of these $_SERVER[] variables inside service logic.

 
function members_only_func($in_message) {

    // getting the clients IP.
    $remote_addr = $_SERVER["REMOTE_ADDR"];

    if($remote_addr == "67.205.26.154" ||
       $remote_addr == "124.43.59.95") {
       // generates the message for authenticated clients.

       return $valid_out_message;
    }

    // otherwise throw an exception
    throw new WSFault("Sender", "Failed to Authenticate");
}

$operations = array("membersOnlyOp" => "members_only_func");

$service = new WSService(array("operations" => $operations));

$service->reply();

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SOA, Tutorial/Guide, php, web services, wsf/php, wso2 2 Comments »

December 21st, 2008Introduction to WSO2 Carbon - Componentized SOA Platform

“WSO2 carbon is a componentized, customizable SOA Platform, You can adapt the middleware to your enterprise architecture, rather than adapt your architecture to the middleware”.

The Carbon Story

Dimuthu’s Blog

January 5th, 2009Article Introducing PHP Data Services

December 27th, 2008PHP Web Services - Authentication Based on Client’s IP

December 21st, 2008Introduction to WSO2 Carbon - Componentized SOA Platform