[Ndn-interest] (NDN-js) query localhost from browser?

[Thompson, Jeff]

NFD team, any suggestions on scope violation connecting to WebSocket locally?

From: "Ashlesh Gawande (agawande)" <agawande at memphis.edu<mailto:agawande at memphis.edu>>
Date: Wednesday, July 20, 2016 at 14:11:00
To: Jeff Thompson <jefft0 at remap.ucla.edu<mailto:jefft0 at remap.ucla.edu>>, "El Mimouni, Omar Ilias (IntlAssoc)" <omarilias.elmimouni at nist.gov<mailto:omarilias.elmimouni at nist.gov>>, "ndn-interest at lists.cs.ucla.edu<mailto:ndn-interest at lists.cs.ucla.edu>" <ndn-interest at lists.cs.ucla.edu<mailto:ndn-interest at lists.cs.ucla.edu>>
Subject: Re: [Ndn-interest] (NDN-js) query localhost from browser?


nfd.conf is same as nfd.conf.sample.

I have confirmed the scope violation issue by disabling scope checking in NFD.
(Commented out lines 116, 227, 320, 406 in daemon/fw/forwarder.cpp.)
Then the browser gets the data.

Ashlesh

________________________________
From: Thompson, Jeff <jefft0 at remap.ucla.edu<mailto:jefft0 at remap.ucla.edu>>
Sent: Wednesday, July 20, 2016 3:55 PM
To: Ashlesh Gawande (agawande); El Mimouni, Omar Ilias (IntlAssoc); ndn-interest at lists.cs.ucla.edu<mailto:ndn-interest at lists.cs.ucla.edu>
Subject: Re: [Ndn-interest] (NDN-js) query localhost from browser?

See inline below.

From: "Ashlesh Gawande (agawande)" <agawande at memphis.edu<mailto:agawande at memphis.edu>>
Date: Wednesday, July 20, 2016 at 13:41:00


I have tried that example and the browser does not get anything.

NFD logs show that the interest for /localhost/nfd/faces/list is dropped due to scope violation.

Is your nfd.conf modified from /usr/local/etc/ndn/nfd.conf.sample , especially in the websocket section?


In https://github.com/named-data/ndn-js/blob/master/examples/browser/test-list-faces.html#L47

it says that a Unix socket is used to connect to the local forwarder, but nfd-status shows websocket.

Whoopsie!  (That’s a typo from copying from the Node.js example.) You’re right. it connects with WebSocket. I fixed the comment.

Thanks,
- Jeff T


From: Ndn-interest <ndn-interest-bounces at lists.cs.ucla.edu<mailto:ndn-interest-bounces at lists.cs.ucla.edu>> on behalf of Thompson, Jeff <jefft0 at remap.ucla.edu<mailto:jefft0 at remap.ucla.edu>>
Sent: Wednesday, July 20, 2016 3:25:27 PM
To: El Mimouni, Omar Ilias (IntlAssoc); ndn-interest at lists.cs.ucla.edu<mailto:ndn-interest at lists.cs.ucla.edu>
Subject: Re: [Ndn-interest] (NDN-js) query localhost from browser?

See the example test-list-faces:
https://github.com/named-data/ndn-js/blob/master/examples/browser/test-list-faces.html

- Jeff T

From: Ndn-interest <ndn-interest-bounces at lists.cs.ucla.edu<mailto:ndn-interest-bounces at lists.cs.ucla.edu>> on behalf of "El Mimouni, Omar Ilias (IntlAssoc)" <omarilias.elmimouni at nist.gov<mailto:omarilias.elmimouni at nist.gov>>
Date: Wednesday, July 20, 2016 at 13:16:00
To: "ndn-interest at lists.cs.ucla.edu<mailto:ndn-interest at lists.cs.ucla.edu>" <ndn-interest at lists.cs.ucla.edu<mailto:ndn-interest at lists.cs.ucla.edu>>
Subject: [Ndn-interest] (NDN-js) query localhost from browser?

Hi all,

I am currently playing with NDN-js library, and I was wondering if it is possible to query the localhost (e.g.  ndn:/localhost/nfd/faces/list) .
I could do that with node using UnixSocket. Is it possible to do it from a browser (knowing that the browser uses WebSockets) ?

Thanks.
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