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Posted to user@struts.apache.org by Caroline Jen <ji...@yahoo.com> on 2003/12/09 02:29:10 UTC
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
I use container-managed authentication.
--- "Yee, Richard K,,DMDCWEST"
<Ye...@osd.pentagon.mil> wrote:
> Caroline,
> Imposible? Look at the HTML that is generated by the
> JSP page. I think you
> will see that it returns "null".
> Take a look at the JavaDoc for
> HttpServletRequest.getRemoteUser();
>
> getRemoteUser
> public java.lang.String getRemoteUser()
> Returns the login of the user making this request,
> if the user has been
> authenticated, or null if the user has not been
> authenticated. Whether the
> user name is sent with each subsequent request
> depends on the browser and
> type of authentication. Same as the value of the CGI
> variable REMOTE_USER.
>
> Returns: a String specifying the login of the user
> making this request, or
> null
>
> As the JavaDoc says: "Whether the user name is sent
> with each subsequent
> request depends on the browser and type of
> authentication." Are you using
> basic authentication or are you authenticating the
> user yourself?
> If you are doing it yourself (ie. through a db
> lookup) then the server
> doesn't know about the user being authenticated and
> will return null.
>
> Regards,
>
> Richard
> -----Original Message-----
> From: Caroline Jen [mailto:jiapei_jen@yahoo.com]
> Sent: Monday, December 08, 2003 2:56 PM
> To: Struts Users Mailing List
> Subject: RE: Please Help! Unable to Pass A Hidden
> Field To scaffold.Proces
> sAction
>
>
> I pass two hidden fields: username and keyName at
> the
> same time. The keyName is passed and with the
> correct
> value in it. The username is passed but its value
> turns out to be a null.
>
> It is impossible for request.getRemoteUser(); in my
> JSP returning a null. (see code below) Before it
> reaches request.getRemoteUser(); the user has
> already
> been successfully logged in with a valid name.
>
> <req:isUserInRole role="editor">
> <html:form action="/find/Category">
> <TR>
> <TD class="option">
> <% String username = request.getRemoteUser();%>
> <html:hidden property="keyName"
> value="journal_category"/>
> <html:hidden property="username"
> value="<%=username%>"/>
> <html:submit>View Articles</html:submit>
> </TD>
> </TR>
> </html:form>
> </req:isUserInRole>
> --- "Yee, Richard K,,DMDCWEST"
> <Ye...@osd.pentagon.mil> wrote:
> > Caroline,
> > Are you having problems with the username or the
> > keyName hidden variable? If
> > it is the username, then I'd suspect that
> > request.getRemoteUser() in your
> > JSP is returning null.
> >
> > Regards,
> >
> > Richard
> >
> > -----Original Message-----
> > From: Caroline Jen [mailto:jiapei_jen@yahoo.com]
> > Sent: Monday, December 08, 2003 1:32 PM
> > To: Struts Users Mailing List
> > Subject: Re: Please Help! Unable to Pass A Hidden
> > Field To
> > scaffold.ProcessAction
> >
> >
> > I did not mess up lowercase and uppercase of the
> > hidden field I want to pass from my JSP to the
> scaffold.ProcessAction.
> > If it had been the lowercase/uppercase problem, I
> would
> > have gotten a message
> > saying that the variable could not be recognized.
>
> >
> > I pass two hidden fields at the same time. One of
> > them is successfully passed with correct value.
> The
> > other is passed but its value shows a 'null' in
> the
> > scaffold.ProcessAction. What could go wrong? Let
> me show my code
> > again:
> >
> > Two hidden fields: username and keyName are passed
> > from a JSP via a SUBMIT button:
> >
> > <req:isUserInRole role="editor">
> > <html:form action="/find/Category">
> > <% String username = request.getRemoteUser();%>
> > <html:hidden property="keyName"
> > value="journal_category"/>
> > <html:hidden property="username"
> > value="<%=username%>"/>
> > <html:submit>View Articles</html:submit>
> > </html:form>
> > </req:isUserInRole>
> >
> > and an action mapping:
> >
> > <action
> > roles="editor"
> > path="/find/Category"
> >
> > type="org.apache.struts.scaffold.ProcessAction"
> >
> >
>
parameter="org.apache.artimus.article.FindEditorData"
> > name="articleForm"
> > scope="request"
> > validate="false">
> > <forward
> > name="success"
> > path=".article.Result"/>
> > </action>
> >
> > The value of the 'username' is found to be a
> 'null'
> > in
> > the FindEditorData.java while the value of keyName
> > is successfully
> > retrieved. In the browser, I got:
> >
> > name=null; kn=journal_category; kv=null
> >
> > The code of my FindEditorData is shown below:
> >
> > public final class FindEditorData extends Bean
> > {
> > public Object execute() throws Exception
> > {
> >
> > // Obtain username
> > String username = getUsername();
> >
> > EditorService service = new EditorService();
> > String value = service.findEditorData( username
> > );
> >
> > String property = getKeyName();
> >
> > if (( null==property ) || ( null==value ))
>
> > {
> > StringBuffer sb = new StringBuffer();
> > sb.append( "name=" );
> > sb.append( username );
> > sb.append( "; kn=" );
> > sb.append( property );
> > sb.append( "; kv=" );
> > sb.append( value );
> > throw new ParameterException(
> > sb.toString() );
> > }
> >
> > ResultList list = new ResultListBase
> > (
> >
> > Access.findByProperty(
> > this,property,value
> > )
> >
> > );
> > list.setLegend( property,value );
> >
> > return new ProcessResultBase( list );
> >
> > } // end execute
> >
> > } // End FindEditorData
> >
> >
> >
>
=== message truncated ===
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Re: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
Posted by Paul Thomas <pa...@tmsl.demon.co.uk>.
On 09/12/2003 01:29 Caroline Jen wrote:
> I use container-managed authentication.
In which case, why don't you get the user name using
request.getUserPrincipal().getName() ?
--
Paul Thomas
+------------------------------+---------------------------------------------+
| Thomas Micro Systems Limited | Software Solutions for the Smaller
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| Computer Consultants |
http://www.thomas-micro-systems-ltd.co.uk |
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RE: Please Help! Unable to Pass A Hidden Field To
scaffold.Proces sAction
Posted by Richard Yee <ry...@cruzio.com>.
Caroline,
Did you check the result of getRemoteUser(). Does it return null or "null"?
If so, it's not a problem with your hidden form variables,.
-Richard
At 05:29 PM 12/8/2003, you wrote:
>I use container-managed authentication.
>
>
>
>--- "Yee, Richard K,,DMDCWEST"
><Ye...@osd.pentagon.mil> wrote:
> > Caroline,
> > Imposible? Look at the HTML that is generated by the
> > JSP page. I think you
> > will see that it returns "null".
> > Take a look at the JavaDoc for
> > HttpServletRequest.getRemoteUser();
> >
> > getRemoteUser
> > public java.lang.String getRemoteUser()
> > Returns the login of the user making this request,
> > if the user has been
> > authenticated, or null if the user has not been
> > authenticated. Whether the
> > user name is sent with each subsequent request
> > depends on the browser and
> > type of authentication. Same as the value of the CGI
> > variable REMOTE_USER.
> >
> > Returns: a String specifying the login of the user
> > making this request, or
> > null
> >
> > As the JavaDoc says: "Whether the user name is sent
> > with each subsequent
> > request depends on the browser and type of
> > authentication." Are you using
> > basic authentication or are you authenticating the
> > user yourself?
> > If you are doing it yourself (ie. through a db
> > lookup) then the server
> > doesn't know about the user being authenticated and
> > will return null.
> >
> > Regards,
> >
> > Richard
> > -----Original Message-----
> > From: Caroline Jen [mailto:jiapei_jen@yahoo.com]
> > Sent: Monday, December 08, 2003 2:56 PM
> > To: Struts Users Mailing List
> > Subject: RE: Please Help! Unable to Pass A Hidden
> > Field To scaffold.Proces
> > sAction
> >
> >
> > I pass two hidden fields: username and keyName at
> > the
> > same time. The keyName is passed and with the
> > correct
> > value in it. The username is passed but its value
> > turns out to be a null.
> >
> > It is impossible for request.getRemoteUser(); in my
> > JSP returning a null. (see code below) Before it
> > reaches request.getRemoteUser(); the user has
> > already
> > been successfully logged in with a valid name.
> >
> > <req:isUserInRole role="editor">
> > <html:form action="/find/Category">
> > <TR>
> > <TD class="option">
> > <% String username = request.getRemoteUser();%>
> > <html:hidden property="keyName"
> > value="journal_category"/>
> > <html:hidden property="username"
> > value="<%=username%>"/>
> > <html:submit>View Articles</html:submit>
> > </TD>
> > </TR>
> > </html:form>
> > </req:isUserInRole>
> > --- "Yee, Richard K,,DMDCWEST"
> > <Ye...@osd.pentagon.mil> wrote:
> > > Caroline,
> > > Are you having problems with the username or the
> > > keyName hidden variable? If
> > > it is the username, then I'd suspect that
> > > request.getRemoteUser() in your
> > > JSP is returning null.
> > >
> > > Regards,
> > >
> > > Richard
> > >
> > > -----Original Message-----
> > > From: Caroline Jen [mailto:jiapei_jen@yahoo.com]
> > > Sent: Monday, December 08, 2003 1:32 PM
> > > To: Struts Users Mailing List
> > > Subject: Re: Please Help! Unable to Pass A Hidden
> > > Field To
> > > scaffold.ProcessAction
> > >
> > >
> > > I did not mess up lowercase and uppercase of the
> > > hidden field I want to pass from my JSP to the
> > scaffold.ProcessAction.
> > > If it had been the lowercase/uppercase problem, I
> > would
> > > have gotten a message
> > > saying that the variable could not be recognized.
> >
> > >
> > > I pass two hidden fields at the same time. One of
> > > them is successfully passed with correct value.
> > The
> > > other is passed but its value shows a 'null' in
> > the
> > > scaffold.ProcessAction. What could go wrong? Let
> > me show my code
> > > again:
> > >
> > > Two hidden fields: username and keyName are passed
> > > from a JSP via a SUBMIT button:
> > >
> > > <req:isUserInRole role="editor">
> > > <html:form action="/find/Category">
> > > <% String username = request.getRemoteUser();%>
> > > <html:hidden property="keyName"
> > > value="journal_category"/>
> > > <html:hidden property="username"
> > > value="<%=username%>"/>
> > > <html:submit>View Articles</html:submit>
> > > </html:form>
> > > </req:isUserInRole>
> > >
> > > and an action mapping:
> > >
> > > <action
> > > roles="editor"
> > > path="/find/Category"
> > >
> > > type="org.apache.struts.scaffold.ProcessAction"
> > >
> > >
> >
>parameter="org.apache.artimus.article.FindEditorData"
> > > name="articleForm"
> > > scope="request"
> > > validate="false">
> > > <forward
> > > name="success"
> > > path=".article.Result"/>
> > > </action>
> > >
> > > The value of the 'username' is found to be a
> > 'null'
> > > in
> > > the FindEditorData.java while the value of keyName
> > > is successfully
> > > retrieved. In the browser, I got:
> > >
> > > name=null; kn=journal_category; kv=null
> > >
> > > The code of my FindEditorData is shown below:
> > >
> > > public final class FindEditorData extends Bean
> > > {
> > > public Object execute() throws Exception
> > > {
> > >
> > > // Obtain username
> > > String username = getUsername();
> > >
> > > EditorService service = new EditorService();
> > > String value = service.findEditorData( username
> > > );
> > >
> > > String property = getKeyName();
> > >
> > > if (( null==property ) || ( null==value ))
> >
> > > {
> > > StringBuffer sb = new StringBuffer();
> > > sb.append( "name=" );
> > > sb.append( username );
> > > sb.append( "; kn=" );
> > > sb.append( property );
> > > sb.append( "; kv=" );
> > > sb.append( value );
> > > throw new ParameterException(
> > > sb.toString() );
> > > }
> > >
> > > ResultList list = new ResultListBase
> > > (
> > >
> > > Access.findByProperty(
> > > this,property,value
> > > )
> > >
> > > );
> > > list.setLegend( property,value );
> > >
> > > return new ProcessResultBase( list );
> > >
> > > } // end execute
> > >
> > > } // End FindEditorData
> > >
> > >
> > >
> >
>=== message truncated ===
>
>
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