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Retrieve image from node with read access
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Helene Svelle
23.09.2013  05.20

Hi!

On the frontpage of a website, I try to retrieve the image from a node that has read access set to system user.

I use Engine.SystemSession when I get the article, and I thought that would be sufficient in order to get the image without being logged in?
 

Artikkel art = WAFContext.Engine.SystemSession.GetContent<Artikkel>(nodeId);
....
art.Ingressbilde.GetImageHtml(ia)

 

Should I use something else than GetImageHtml? Should I use GetSecretUrl and build the image tag myself?  What do you recommend?

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Vidar Langberget
23.09.2013  08.33

Hi!

In order to get the node itself, SystemSession is the correct way, but files are a special case. You're not accessing the file itself using SystemSession, you only get the url to the file. The is fetched using a separate http request to the file, that is sent when the html is rendered in the users browser. In the html, there is no reference to the SystemSession, so the request to the file is interpreted as a anonymous request.

The solution is to use GetSecretUrl and build the image tag yourself. This returns a url similar to this one:

http://demosite/waf/Files/Content/323/-30902/a63a007a-972d-46ce-9c99-0a69d3970b16/_cached_120x0__40c789e6-6ac3-4ae6-9fbd-1ff88450f05e.jpg?r_n_d=624101_

Another benefit is that it isn't possible to alter the image parameters, so this is the only size they'll get access to.

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Helene Svelle
23.09.2013  13.37

Ok, thanks for the advice!

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