While trying to login to AEM using POST having request body, the resource recognizes it as a GET and does not give the request body

[jebs89]

http://localhost:4502/ecat/j_security_check?j_username=abc&j_password=abc&resource=/ecat/apps/cat/in... is the POST URL used to login to our application and land on the servlet path /ecat/apps/cat/injectorwebhook. It has a request body containing a json snippet. When i do a request.getMethod() in the servlet i get it as a GET and could not have a hold on the json from the request body. Why is it treated as a GET method? how to retrieve the body json from the request?

[Arun_Patidar]

Hi,

To get request payload JOSN you need to read InputStream, e.g.

StringBuilder stringBuilder = new StringBuilder();

try(BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(request.getInputStream()))) {

    char[] charBuffer = new char[1024];

    int bytesRead;

    while ((bytesRead = bufferedReader.read(charBuffer)) > 0) {

        stringBuilder.append(charBuffer, 0, bytesRead);

    }

}

[jebs89]

Hi Arun. Thanks for your reply. I understand that we can use your code to extract request body from a POST call. But in my case my POST call is identified as a GET by my servlet. Now how can i get the request body?

[Arun_Patidar]

Hi,

Server semantics for GET, however, are restricted such that a body, if any, has no semantic meaning to the request.

The GET method means retrieve whatever information ([...]) is identified by the Request-URI.

Can't you make POST request to http://localhost:4502/ecat/j_security_check?j_username=abc&j_password=abc&resource=/ecat/a pps/cat/injectorwebhook  ?

[jebs89]

As I said I do a POST call only, via POSTMAN. But when i capture the logs from my servlet, the request.getMethod() returns it as a GET. any idea why the method is not identified as a POST, instead a GET?

[Arun_Patidar]

Hi,

Can you share your servlet code skeleton(remove business logic) ?

[smacdonald2008]

Are you logging into AEM itself or building a login component to a specific site built via AEM?

[jebs89]

I am logging into AEM itself and hitting the resource located at 'resource'

[jebs89]

@Service({javax.servlet.Servlet.class,javax.servlet.ServletConfig.class,java.io.Serializable.class})

@Component

@Properties({

@org.apache.felix.scr.annotations.Property(name="sling.servlet.paths", value="/apps/cat/injectorwebhook"),

@org.apache.felix.scr.annotations.Property(name="service.vendor", value="abc Inc."),

@org.apache.felix.scr.annotations.Property(name="sling.servlet.methods", value={"POST"}),

@org.apache.felix.scr.annotations.Property(name="sling.servlet.extensions", value={"json"})

}

)

public class MerlionWebhookServlet extends SlingAllMethodsServlet{

private static final long serialVersionUID = 2598426539166789515L;

private static final Logger log = LoggerFactory.getLogger(MerlionWebhookServlet.class);

protected void doGet(SlingHttpServletRequest req,

SlingHttpServletResponse resp) throws IOException {

System.out.println("inside MerlionWebhookServlet doGet");

log.info("MerlionWebhookServlet get");

doPost(req, resp);

}

protected void doPost(SlingHttpServletRequest request,

SlingHttpServletResponse response) throws IOException {

System.out.println("inside MerlionWebhookServlet dopost");

log.info("MerlionWebhookServlet post");

doJob(request, response);

}

private void doJob(SlingHttpServletRequest request,SlingHttpServletResponse response){

try {

System.out.println("Method : " + request.getMethod());

String jsonRequestText = IOUtils.toString(request.getReader());

System.out.println("jsonRequestText : " + jsonRequestText);

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

[jebs89]

This is the printed logs:

inside MerlionWebhookServlet doGet

inside MerlionWebhookServlet dopost

Method: GET

jsonRequestText :

[Arun_Patidar]

Hi,

If you directly hit the URL in the browser, it will. be treated as GET request. To make POST request either submit form  or call url via ajax using post method.

[jebs89]

I use POSTMAN to send a POST call attaching the request body in it.

[Arun_Patidar]

Hi,

In above screenshot you can see, I made the post request for same code using AJAX. If I hit same page directly with browser I am getting GET.

So the real issue is the way you are making call to your servlet.

[Albin_Issac]

My perspective you should be invoking the servlet URL directly with POST method and set the authentication header as part of the request.

e.g Authorization Basic YWRtaW46YWRtaW4=

Encode the following string username:password(e.g admin:admin)

Regards

Albin I

www.albinsblog.com

[jebs89]

i use a URL http://admin:admin@localhost:4502/ecat/apps/cat/injectorwebhook. This takes me to the servlet and is treated as a POST and all is good.

Logs:

inside MerlionWebhookServlet dopost

Method: POST

jsonRequestText : {

  "fragments": {

    "DDD001017_id06": {

      "targetLangs": ["es_XC", "zh_XC"]

    },

    "EEE001018_id01": {

      "targetLangs": ["fr_FR"]

    }

  }

}

But due to dependent system behavior i cannot use this URL. What is the difference in behavior between these two URLs?

[Jörg_Hoh]

Please find this request in the server logs; in the request log you should find this request and it will clearly identify what method was used.

Jörg