[14:30:12 CDT(-0500)] <EricDalquist> drewwills: there?
[14:45:14 CDT(-0500)] <cwaymire> EricDalquist: hey got a quick question for you.
[14:45:19 CDT(-0500)] <EricDalquist> ok
[14:46:35 CDT(-0500)] <cwaymire> i've got a portlet that I added a Spring MVC controller into. I noticed that when calls come into that controller they have neither an active HttpSession nor does the request object contain a remote username.
[14:46:49 CDT(-0500)] <EricDalquist> this is a servlet controller?
[14:46:53 CDT(-0500)] <cwaymire> in this instance its important that I be able to get the user name
[14:46:59 CDT(-0500)] <cwaymire> yeah. standard spring mvc controller
[14:47:17 CDT(-0500)] <EricDalquist> so for the session to exist you need to make sure that the tomcat instance has emptySessionPath set to true
[14:47:24 CDT(-0500)] <EricDalquist> or whatever the TC7 version of that is
[14:47:31 CDT(-0500)] <EricDalquist> there will never be a remoteUser though
[14:47:33 CDT(-0500)] <cwaymire> let me double check my setting
[14:47:43 CDT(-0500)] <EricDalquist> that servlet is being directly accessed by the client
[14:47:49 CDT(-0500)] <EricDalquist> the portal has zero control over it
[14:48:00 CDT(-0500)] <EricDalquist> so none of the portal user's "state" is available
[14:48:07 CDT(-0500)] <EricDalquist> and in fact the session will only exist
[14:48:16 CDT(-0500)] <EricDalquist> if you have previously accessed a portlet in the same webapp
[14:48:19 CDT(-0500)] <EricDalquist> and that portlet created a session
[14:48:43 CDT(-0500)] <cwaymire> which is the case. are there any tricks to getting the username of the authenticated user?
[14:49:39 CDT(-0500)] <EricDalquist> the only way
[14:49:48 CDT(-0500)] <EricDalquist> is for the user to visit the portlet first
[14:49:57 CDT(-0500)] <EricDalquist> the portlet stores the username in the application scope in the portlet session
[14:50:01 CDT(-0500)] <EricDalquist> then the servlet can see that value
[14:50:10 CDT(-0500)] <EricDalquist> if the servlet is the first point of contact though
[14:50:10 CDT(-0500)] <EricDalquist> no
[14:50:12 CDT(-0500)] <EricDalquist> there is no way
[14:51:14 CDT(-0500)] <cwaymire> The portlet (Attachments) will always be there. It will basically be a hidden div on the page. An interaction in another portlet will cause a lightbox to display allowing the user to select a file to upload via a multipart POST.
[14:51:51 CDT(-0500)] <cwaymire> but I need to know who the user was that submitted the upload.
[14:52:13 CDT(-0500)] <EricDalquist> yeah they would need to visit the portlet first
[14:52:17 CDT(-0500)] <EricDalquist> why not have them upload to the porlet
[14:52:26 CDT(-0500)] <EricDalquist> portlets can deal with uploads via action and resource urls
[14:53:49 CDT(-0500)] <cwaymire> the idea was that the Attachments portlet would basically be an invisible portlet that wasnt rendered but would expose a global javascript api that would open up a lightbox div on the page allowing you to upload a file. So any portlet that wants to use attachments can simply call the global js method and give it a callback method. When the upload is done the callback method is executed with some result data.
[14:54:28 CDT(-0500)] <EricDalquist> so you are 'uploading" to the javascript?
[14:54:55 CDT(-0500)] <EricDalquist> or is the attachment stored somewhere that other portlets could potentially reference/access?
[14:55:51 CDT(-0500)] <cwaymire> the javascript makes an ajax call to submit the file to the controller which creates some database rows and will store the file on the filesystem.
[14:56:15 CDT(-0500)] <EricDalquist> ok
[14:56:16 CDT(-0500)] <cwaymire> the idea is any portlet can upload an attachment and then later reference that attachment. right now the functionality is going to be pretty limited
[14:56:26 CDT(-0500)] <EricDalquist> so why the servlet?
[14:56:34 CDT(-0500)] <EricDalquist> the portlet could do that competely within the portlet API
[14:56:46 CDT(-0500)] <EricDalquist> the attchment portlet renders in a hidden div
[14:56:55 CDT(-0500)] <EricDalquist> the JS that is written out includes a portlet resource url
[14:57:16 CDT(-0500)] <EricDalquist> the JS "upload attachment" api POSTs the file upload to the resource url
[14:57:32 CDT(-0500)] <EricDalquist> which accepts the upload, stores it, writes to the db and returns some JSON with the DB key to the new upload
[14:57:39 CDT(-0500)] <EricDalquist> which the other portlet can then use/store/etc
[14:57:57 CDT(-0500)] <cwaymire> The part I had trouble with was getting it to work on a ResourceMapping
[14:58:36 CDT(-0500)] <cwaymire> it didnt seem to send the right parameters across to the mapping
[14:59:07 CDT(-0500)] <cwaymire> i took the working code from the mvc controller and put it under a ResourceMapping and it didnt like the params.
[14:59:12 CDT(-0500)] <EricDalquist> what do you mean?
[14:59:22 CDT(-0500)] <EricDalquist> ah, do you have an example of that?
[14:59:50 CDT(-0500)] <cwaymire> yeah. i can gist it if you want
[14:59:53 CDT(-0500)] <EricDalquist> sure
[15:01:21 CDT(-0500)] <cwaymire> https://gist.github.com/anonymous/5207946
[15:01:21 CDT(-0500)] <cwaymire> https://gist.github.com/anonymous/5207952
[15:01:24 CDT(-0500)] <cwaymire> first one is the mvc controller
[15:01:28 CDT(-0500)] <cwaymire> second is a portlet resource mapping
[15:01:54 CDT(-0500)] <cwaymire> when I attempted to use the resource mapping I got an error saying org.springframework.web.portlet.bind.MissingPortletRequestParameterException: Required MultipartFile parameter 'qqfile' is not present
[15:01:55 CDT(-0500)] <EricDalquist> ok
[15:02:18 CDT(-0500)] <EricDalquist> but it works for the action request version of that?
[15:02:45 CDT(-0500)] <cwaymire> the mvc controller using a RequestMapping works
[15:03:06 CDT(-0500)] <EricDalquist> just out of curiousity
[15:03:06 CDT(-0500)] <cwaymire> at first I tried using an ActionMapping/RenderMapping pair but I need/want to return json
[15:03:12 CDT(-0500)] <EricDalquist> can you try doing this one: https://gist.github.com/anonymous/5207946
[15:03:23 CDT(-0500)] <EricDalquist> but change the ActionReq/Res to ResourceReq/Res
[15:03:35 CDT(-0500)] <EricDalquist> and use a resourceurl instead of an actionurl to call it
[15:03:41 CDT(-0500)] <EricDalquist> just to see if that makes any difference
[15:03:42 CDT(-0500)] <EricDalquist> if not
[15:03:48 CDT(-0500)] <EricDalquist> it is a bug either in spring or in uPortal
[15:04:16 CDT(-0500)] <EricDalquist> file upload is a pita, both spring an uportal have to be super extra careful to not touch the request body before the portlet wants to look at it
[15:04:24 CDT(-0500)] <EricDalquist> or it disappears as you can only read it once
[15:04:59 CDT(-0500)] <cwaymire> I had it working fine in the mvc controller. was able to see the file contents.
[15:05:03 CDT(-0500)] <cwaymire> ok. im going to recompile,d eploy and test
[15:05:31 CDT(-0500)] <EricDalquist> thanks
[15:10:37 CDT(-0500)] <cwaymire> that time I got: org.springframework.web.portlet.NoHandlerFoundException: No handler found for portlet request: mode 'view', phase 'RESOURCE_PHASE', parameters map[[empty]]
[15:10:50 CDT(-0500)] <EricDalquist> hrm
[15:10:59 CDT(-0500)] <EricDalquist> so somehow the parameters are not getting captured
[15:11:03 CDT(-0500)] <EricDalquist> is this code sharable at all?
[15:11:07 CDT(-0500)] <EricDalquist> like could you post it somewhere
[15:11:13 CDT(-0500)] <EricDalquist> and maybe tomorrow morning I could take a look at it?
[15:11:19 CDT(-0500)] <EricDalquist> I'm just worried there is a bug in uportal somwhere
[15:11:37 CDT(-0500)] <cwaymire> yeah. I can push this up to my github repo
[15:12:28 CDT(-0500)] <cwaymire> its frustrating because I had to go through several attempts to get it working properly and now the only blocker is with the MVC controller method I can't see the username.
[15:12:39 CDT(-0500)] <EricDalquist> 
[15:12:43 CDT(-0500)] <EricDalquist> right
[15:12:45 CDT(-0500)] <cwaymire> it was the ajax portion that was a bit of a pita
[15:12:46 CDT(-0500)] <EricDalquist> well servlets are just servlets
[15:12:56 CDT(-0500)] <EricDalquist> and completely outside of the scope of the portal
[15:29:31 CDT(-0500)] <cwaymire> if I do it as a ResourceMapping it tells me it can't find the request parameter i'm looking for, but if I look at the http request going out I can see it defined in the request payload as form-data. not sure whats going on there.
[15:30:00 CDT(-0500)] <EricDalquist> yeah
[15:30:05 CDT(-0500)] <EricDalquist> that sounds like either a uportal or spring bug
[16:48:26 CDT(-0500)] <cwaymire> ok I think i have a temporary solution
[16:50:48 CDT(-0500)] <EricDalquist> great
[16:50:53 CDT(-0500)] <EricDalquist> I have to run and catch the bus
[16:51:01 CDT(-0500)] <cwaymire> heh. have fun.
[16:51:05 CDT(-0500)] <EricDalquist> but I'd love to hear about it tomorrow (or via reading chat logs)