[jira] [Updated] (SLING-5824) Servlet Filter to do POST tunnelling to GET

["Christanto (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLING-5824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christanto updated SLING-5824:
------------------------------
    Description: 
Sometimes there is a case where the request URL is very long. For example, during advanced search where there are many fields.
To accommodate this, the request is tunneled through POST, such that the client do a POST request and then the server convert it to GET, so that the other code in the chain only knows about GET.

So far the custom POST handler needs to be created specifically for this:

{code}
slingRequest.getRequestDispatcher(resource).forward(new HttpServletRequestWrapper(request) {
    @Override
    public String getMethod() {
        return "GET";
    }
}, response);
{code}

Since this is generic and to avoid creating a custom POST handler every time for this, it makes sense to implement this in Sling using Servlet Filter. For example, a special parameter can be introduced for this purpose named "\_method\_". So the filter will check for this parameter and wrap the request accordingly (also remove the "\_method\_"). This is similar to "\_charset\_" parameter for encoding.

  was:
Sometimes there is a case where the request URL is very long. For example, during advanced search where there are many fields.
To accommodate this, the request is tunneled through POST, such that the client do a POST request and then the server convert it to GET, so that the other code in the chain only knows about GET.

So far the custom POST handler needs to be created specifically for this:

{code}
slingRequest.getRequestDispatcher(resource).forward(new HttpServletRequestWrapper(request) {
    @Override
    public String getMethod() {
        return "GET";
    }
}, response);
{code}

Since this is generic and to avoid creating a custom POST handler every time for this, it makes sense to implement this in Sling using Servlet Filter. For example, a special parameter can be introduced for this purpose named "_method_". So the filter will check for this parameter and wrap the request accordingly (also remove the "\_method\_"). This is similar to "\_charset\_" parameter for encoding.


> Servlet Filter to do POST tunnelling to GET
> -------------------------------------------
>
>                 Key: SLING-5824
>                 URL: https://issues.apache.org/jira/browse/SLING-5824
>             Project: Sling
>          Issue Type: Improvement
>          Components: Servlets
>            Reporter: Christanto
>
> Sometimes there is a case where the request URL is very long. For example, during advanced search where there are many fields.
> To accommodate this, the request is tunneled through POST, such that the client do a POST request and then the server convert it to GET, so that the other code in the chain only knows about GET.
> So far the custom POST handler needs to be created specifically for this:
> {code}
> slingRequest.getRequestDispatcher(resource).forward(new HttpServletRequestWrapper(request) {
>     @Override
>     public String getMethod() {
>         return "GET";
>     }
> }, response);
> {code}
> Since this is generic and to avoid creating a custom POST handler every time for this, it makes sense to implement this in Sling using Servlet Filter. For example, a special parameter can be introduced for this purpose named "\_method\_". So the filter will check for this parameter and wrap the request accordingly (also remove the "\_method\_"). This is similar to "\_charset\_" parameter for encoding.



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