On 29 August 2012 21:11, Nate Coraor <n...@bx.psu.edu> wrote:
> On Aug 24, 2012, at 9:48 AM, Mutlu Dogruel wrote:
> > Hi folk,
> > Do you know any method for reading (the extended) WSGI HTTP headers
> > from a custom tool?
> > If I put some debugging lines in
> > $galaxy/lib/galaxy/web/framework/middleware/xforwardedhost.py, I can
> > read the HTTP headers I want. But I need to access them under
> > tools/my_script.py. Is there a way to reach the "webapp"s http headers
> > from there?
> Hi Mutlu,
> Do you mean the headers at the time of tool execution? Running tools
> (jobs) is intentionally decoupled from the state of the front end.
> However, you could modify the tool submission to store the header as a
> tool parameter and pass it in the command template.
> > Thanks.
> > Mutlu
> > ___________________________________________________________
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Thanks for the reply. Yes, this is what I am trying to achieve. But in my
case, I need to read the headers before the tool is run, and to be more
precise, just before dynamic_options creates a selection list. Because it's
the dynamic_options script that needs the http header values.
Essentially, I need to get some AWS keys from the http headers. We inject
AWS keys and secrets into http headers on a proxy server that Galaxy is
sitting behind. I have a customised upload.xml and upload.py for managing
downloads from S3 buckets (I kept the original upload scripts as well). In
this scenario, a list of available, permitted S3 files are generated by
dynamics_options, according to the AWS keys. The user-selected file is
later downloaded from Amazon using its URL. This is handled by Galaxy's
native URL downloader. It works fine if I read the AWS keys from a local
file, but of course, the keys do not have to be static.
I just started to look into lib/galaxy/tools/parameters/dynamic_options.py,
can this be a good starting point?
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