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From Supun Kamburugamuva <supu...@gmail.com>
Subject Re: Accessing the REST service from JavaScript
Date Wed, 12 Jun 2013 13:21:07 GMT
>From the description my understand was this is a cross domain scripting
issue. If that is the case, using a proxy server will make all the requests
to go through the same server (domain) and avoid the issue.

Thanks,
Supun..


On Wed, Jun 12, 2013 at 8:58 AM, Amila Jayasekara
<thejaka.amila@gmail.com>wrote:

> Hi Supun,
>
> Didn't quite understand how HTTPD going to solve the issue. You meant to
> (from browser) pass header in different format to HTTPD and set headers at
> HTTPD server level ? If this is possible could you also point to a
> reference ?
>
> Thanks
> Amila
>
>
> On Wed, Jun 12, 2013 at 8:28 AM, Supun Kamburugamuva <supun06@gmail.com
> >wrote:
>
> > You can try proxying all your requests through a HTTPD server. May be it
> > will help.
> >
> > Thanks,
> > Supun..
> >
> >
> > On Wed, Jun 12, 2013 at 12:48 AM, Amila Jayasekara
> > <thejaka.amila@gmail.com>wrote:
> >
> > > Hi Viknes,
> > >
> > > As discussed offline the reason for authentication failure is not
> getting
> > > "Authorization" header to backend. We experienced that Firefox and
> Chrome
> > > does
> > > not allow user to set headers while IE allow user to set headers
> (Correct
> > > me if I am wrong). Further [1] describes this restriction in detail.
> > >
> > > It seems like due to security reasons some browsers does not allow user
> > to
> > > manipulate headers. Maybe other Javascript experts can give more
> feedback
> > > to
> > > solve this issue.
> > >
> > > Further even though you disable security Airavata needs a user id to
> > > operate on. Therefore we still require a user id in the request header.
> > >
> > > [1]
> http://news.anarchy46.net/2012/06/refused-to-set-unsafe-header.html
> > >
> > > Thanks
> > > Amila
> > >
> > >
> > > On Tue, Jun 11, 2013 at 11:42 PM, Viknes Balasubramanee <
> viknesb@msn.com
> > > >wrote:
> > >
> > > > Hi All,
> > > >
> > > > I am trying to get the list of experiments in Airavata by accessing
> the
> > > > Registry API REST service from a webapp. When I make an AJAX request
> > from
> > > > JavaScript, I get an error in the browser console(FireBug) stating
> > > "Access
> > > > denied to restricted URI".  This is the URL that I am trying to hit
> > > >
> > > >
> > >
> >
> http://localhost:8080/airavata-registry/api/experimentregistry/get/experimen
> > > > ts/all . The URL works fine from the browser.
> > > >
> > > > 1. I have the basic authentication header set with the encoded
> username
> > > and
> > > > password when I make the request. I have CORS enabled in jQuery. Yet,
> > the
> > > > request seems to fail.
> > > > 2. In order to skip the authentication and try my request, I set the
> > > > enabled
> > > > parameter in authentication.xml to false. <authenticators
> > > enabled="false">.
> > > > When I do so, I get the below exception if I try to connect to the
> > > registry
> > > > from XBaya.
> > > >
> > > >
> > org.apache.airavata.client.api.exception.AiravataAPIInvocationException:
> > > > Error while initializing the Airavata API
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.airavata.client.AiravataAPIFactory.getAPI(AiravataAPIFactory.java
> > > > :64)
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.airavata.client.AiravataAPIFactory.getAPI(AiravataAPIFactory.java
> > > > :43)
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.airavata.xbaya.ui.dialogs.registry.RegistryWindow.getAiravataAPI(
> > > > RegistryWindow.java:260)
> > > > Caused by:
> > > >
> > org.apache.airavata.client.api.exception.AiravataAPIInvocationException:
> > > > Error while initializing the Airavat
> > > > a API
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.airavata.client.AiravataClient.initialize(AiravataClient.java:163
> > > > )
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.airavata.client.AiravataAPIFactory.getAPI(AiravataAPIFactory.java
> > > > :61)
> > > >         ... 99 more
> > > > Caused by: java.lang.RuntimeException: Failed : HTTP error code : 500
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.airavata.rest.client.ConfigurationResourceClient.getEventingURI(C
> > > > onfigurationResourceClient.java:5
> > > > 19)
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.airavata.rest.client.RegistryClient.getEventingServiceURI(Registr
> > > > yClient.java:164)
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.airavata.client.AiravataClient.createConfig(AiravataClient.java:1
> > > > 15)
> > > >
> > > > Please let me know if I am missing something here. For most of the
> GSOC
> > > > projects, we are developing webapp and I believe this would play an
> > > > important role.
> > > >
> > > > Thanks
> > > > Viknes
> > > >
> > >
> >
> >
> >
> > --
> > Supun Kamburugamuva
> > Member, Apache Software Foundation; http://www.apache.org
> > E-mail: supun06@gmail.com;  Mobile: +1 812 369 6762
> > Blog: http://supunk.blogspot.com
> >
>



-- 
Supun Kamburugamuva
Member, Apache Software Foundation; http://www.apache.org
E-mail: supun06@gmail.com;  Mobile: +1 812 369 6762
Blog: http://supunk.blogspot.com

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