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[EP-tech] Re: Problem with secured documents and differing

Okay, so I think I've found the problem, and it is indeed related to the Screen::Logout problem we had.

I think the root cause of the problem is that, as with Screen::Logout, url_stem in EPrints::DataObj::Eprint uses get_conf( "http_url" ) rather than get_url( path => "static, host => 1 ):

sub url_stem
{
        my( $self ) = @_;

        my $repository = $self->{session}->get_repository;

        my $url;
        #$url = $repository->get_conf( "http_url" );
        # jjh, 27th july 2012, attempt to fix http/https secure documents
        $url = $self->{session}->get_url( path => "static", host => 1 );
        $url .= '/';
        $url .= $self->get_value( "eprintid" )+0;
        $url .= '/';

        return $url;
}

With that change made (and a consequential change in DataObj::Document::get_thumbnail), everything appears fine.

We are running version 3.3.6. I see that 3.3.10 works slightly differently, with Document::get_url recoded to remove its dependency on EPrint::url_stem. However, it now uses config( "http_url" ) which I don't think will work in all cases.

The general problem appears to be that config( "http_url" ) doesn't always work in a configuration which uses different domains for http and https. Any chance of a code audit to convert the lot?

Thanks,

Jon

-----Original Message-----
From: Jon Hallett 
Sent: 16 July 2012 14:01
To: 'eprints-tech@ecs.soton.ac.uk'
Subject: RE: Problem with secured documents and differing

No takers from the developers for this one? And I thought it was an 'interesting' one... Maybe something similar to the problem we saw with Screen::Logout (http://www.eprints.org/tech.php/16546.html)?

Thanks,

Jon

-----Original Message-----

Message: 2
Date: Tue, 3 Jul 2012 15:38:32 +0100
From: Jon Hallett <Jon.Hallett@uwe.ac.uk>
Subject: [EP-tech] Problem with secured documents and differing
	HTTP/HTTPS domain names?
To: "'eprints-tech@ecs.soton.ac.uk' (eprints-tech@ecs.soton.ac.uk)"
	<eprints-tech@ecs.soton.ac.uk>
Message-ID:
	<361D6B1A2B6D194081955E94772543F279E099C842@EGEN-MBX01.campus.ads.uwe.ac.uk>
	
Content-Type: text/plain; charset="us-ascii"

I think we have a problem with secured documents when EPrints is configured to use different domain names for HTTP and HTTPS.

The background is that we have a server called http://researchdata.uwe.ac.uk over HTTP and https://eprints.uwe.ac.uk/datasecure over HTTPS. We've uploaded a document to a user buffer. When you click on the link to download the document from, say,

https://eprints.uwe.ac.uk/datasecure/cgi/users/home?screen=EPrint::View&eprintid=10#t

the browser goes into an infinite loop as shown by Live HTTP headers:

http://researchdata.uwe.ac.uk/10/1/Lorem%20ipsum.doc

GET /10/1/Lorem%20ipsum.doc HTTP/1.1
Host: researchdata.uwe.ac.uk

HTTP/1.1 302 Need to login first
Date: Tue, 03 Jul 2012 14:26:19 GMT
Server: Apache/2.2.14 (Ubuntu)
Location: /cgi/users/login?target=http%3A%2F%2Fresearchdata.uwe.ac.uk%2F10%2F1%2FLorem%2520ipsum.doc
----------------------------------------------------------
http://researchdata.uwe.ac.uk/cgi/users/login?target=http%3A%2F%2Fresearchdata.uwe.ac.uk%2F10%2F1%2FLorem%2520ipsum.doc

GET /cgi/users/login?target=http%3A%2F%2Fresearchdata.uwe.ac.uk%2F10%2F1%2FLorem%2520ipsum.doc HTTP/1.1
Host: researchdata.uwe.ac.uk

HTTP/1.1 302 Found
Date: Tue, 03 Jul 2012 14:26:19 GMT
Server: Apache/2.2.14 (Ubuntu)
Location: https://eprints.uwe.ac.uk/datasecure/cgi/users/login?target=http%3A%2F%2Fresearchdata.uwe.ac.uk%2F10%2F1%2FLorem%2520ipsum.doc
----------------------------------------------------------
https://eprints.uwe.ac.uk/datasecure/cgi/users/login?target=http%3A%2F%2Fresearchdata.uwe.ac.uk%2F10%2F1%2FLorem%2520ipsum.doc

GET /datasecure/cgi/users/login?target=http%3A%2F%2Fresearchdata.uwe.ac.uk%2F10%2F1%2FLorem%2520ipsum.doc HTTP/1.1
Host: eprints.uwe.ac.uk

HTTP/1.1 302 Moved
Date: Tue, 03 Jul 2012 14:26:19 GMT
Server: Apache/2.2.14 (Ubuntu)
Location: http://researchdata.uwe.ac.uk/10/1/Lorem%20ipsum.doc

If I manually change the document URL to http://eprints.uwe.ac.uk/datasecure/10/1/Lorem%20ipsum.doc, it works fine.

Have I misconfigured something? Or is this a consequence of using different domain names for HTTP and HTTPS? Anything that can be done about that?

Fortunately our main EPrints instance works fine. It uses eprints.uwe.ac.uk for both HTTP and HTTPS. We've only come across this when adding a second instance.

Thanks,

Jon

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End of Eprints-tech Digest, Vol 46, Issue 3
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