[opencms-dev] Access a file by uuid

[Yves Glodt]

Hello again,

I can also access the file by path, it will be ok for my application...
I have this jsp, which is called logo.jpg.jsp:


<%@ page session="true" import="org.opencms.main.*, 
org.opencms.jsp.*,org.opencms.file.*,org.opencms.util.*" %>
<%@ page import="java.util.*" %>
<%@ page import="java.io.*" %>
<%@ taglib prefix="cms" uri="http://www.opencms.org/taglib/cms" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%

CmsObject cmso = OpenCms.initCmsObject("Guest");
cmso.loginUser("user", "pass");
CmsResource res = cmso.readResource("/sites/my.site.com/data/123/logo.jpg");
CmsFile file = new CmsFile(res);
response.setContentLength(file.getLength());

OutputStream o = response.getOutputStream();
o.write(file.getContents());
o.flush();
o.close();

%>

But somehow it ouputs 0 bytes, even I know that the file has 8009 bytes (I 
checked by writing it to System.out) The user has access, I tried as admin but 
it makes no difference

What can be wrong here ?


On Monday 22 December 2008, Sebastian Himberger wrote:
> Hi,
>
> I currently have no idea about the UUID thing.
>
> Regarding the input stream: You can simply do a:
>
> InputStream is = new ByteArrayInputStream(cmsFile.getContents());
>
> best regards,
> Sebastian
>
> Yves Glodt schrieb:
> > On Thursday 11 December 2008, Sebastian Himberger wrote:
> >> Hi,
> >>
> >> this works for me:
> >>
> >> <%@ page
> >> import="org.opencms.file.*,org.opencms.jsp.*,org.opencms.util.*,org.open
> >>cms .main.*" %>
> >> <%
> >>
> >> String uuid = "ceece147-3144-11dc-a69a-5f50d3bd539c";
> >>
> >> CmsObject cmso = OpenCms.initCmsObject("Guest");
> >> cmso.loginUser("Admin", "thePassWord");
> >>
> >> CmsResource res = cmso.readResource(new CmsUUID(uuid));
> >>
> >> out.println(res.getName());
> >>
> >> %>
> >>
> >> Are you sure the user who logs in has read access to the resource?
> >
> > Well, I guess to...
> >
> > I am getting this exception:
> > org.opencms.file.CmsVfsResourceNotFoundException: Error reading resource
> > with the ID aec33c59-c50d-11dd-a9f2-0015174f605e.
> >
> > Note that this works:
> > CmsResource res =
> > cmso.readResource("/sites/my.site.com/data/123/logo.jpg");
> > //System.out.println(res.getResourceId().toString());
> >
> >
> > And this not:
> >
> > CmsResource res = cmso.readResource(new CmsUUID("aec33c59-c50d-11dd-
> > a9f2-0015174f605e"));
> >
> > So I guess my user is ok. The uuid I use is the one I saw in the print
> > output of the previous example...
> >
> > Another question came up.... how can I output this CmsResource which is
> > image/jpg from the jsp? Is it possible to cast it to a FileInputStream ?
> >
> > Best regards,
> > Yves
> >
> >> best regards,
> >> Sebastian
> >>
> >> Yves Glodt schrieb:
> >>> Hello,
> >>>
> >>>
> >>> is it possible to find and access a file in the VFS by it's uuid?
> >>>
> >>>
> >>> Background: I have certains PDF documents in my vfs which are not
> >>> accessible
> >>> for any user, logged in or not, and I want to serve them with
> >>> obfuscated urls
> >>> à la /getFile.jsp?id=xxxxxx and it would be nice if I could just use
> >>> the uuid
> >>> to identify them.
> >>> I use OpenCms 7.0.4. Maybe there is another way to achieve this...? :-)
> >>>
> >>>
> >>> Best regards,
> >>> Yves
> >
> > _______________________________________________
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>
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