[jboss-jira] [JBoss JIRA] Commented: (JBPORTAL-2356) It is impossible to use html forms in portlets or js to build http request
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https://jira.jboss.org/jira/browse/JBPORTAL-2356?page=com.atlassian.jira....
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Bernard de Terwangne commented on JBPORTAL-2356:
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Thomas,
Let's put it another way :
<form action="<portlet:actionURL/>">
<input name="q" type="text/>
<input type="submit"/>
</form>
now my trace will allways print "null". You can only get values of parameters
declared in portlet:param tags. This means it is impossible to send any value the end user
has typed to the java code.
I've been digging into the source code to understand how it work and it seems to be
designed to prevent passing parameters from the browser. Liferay for instance only uses
common HTTP parameters. When instanciating the PortletRequest from the HttpServletRequest,
it removes all portal specific parameters so the your java code sees only the ones it
expects.
It is a bug because it is just impossible to use. Note that you can find such construct in
some of the samples that come with the product. The samples of course do not work !!!
Bernard
It is impossible to use html forms in portlets or js to build http
request
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Key: JBPORTAL-2356
URL: https://jira.jboss.org/jira/browse/JBPORTAL-2356
Project: JBoss Portal
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: Portal Portlet
Affects Versions: Portlet-2.0.1
Environment: Linux, Java 5, Tomcat, JBoss Portlet Container 2.0
Reporter: Bernard de Terwangne
JBoss Portlet container conforms to the spec so well that it becomes unusable. It is
impossible to query the end-user for a value and pass that value in processAction or
serveResource calls. Let's say you write this in your JSP page :
<form action="<portlet:actionURL><portlet:param name='q'
value='yop'/></portlet:actionURL">
<input name="q" type="text/>
<input type="submit"/>
</form>
and in the Java code
public void processAction(ActionRequest req, ActionResponse res)
throws IOException, PortletException {
System.out.println(req.getParameter("q");
}
The printed value will allways be "yop" (the value placed in the portlet:param
tag. There is no way to retrieve the value actually typed by the end user.
This is due to the fact JBoss Portlet container mangles in Base64 the parameters from
<portlet:param> and disregards parameters appended by the browser's form
implementation. Same thing with <resourceURL>. There is no way to pass user input to
the portlet's Java code.
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