[zeromq-dev] Can a broker explicitly deny certain subscriptions to certain clients?

Doron Somech somdoron at gmail.com
Wed Sep 9 21:16:39 CEST 2015


Also it is an interesting problem so consider adding it to the cookbook.

Https://github.com/zeromq/cookbook
On Sep 9, 2015 9:32 PM, "Doron Somech" <somdoron at gmail.com> wrote:

> Great to hear. Thanks
> On Sep 9, 2015 12:12 PM, "David Jelenc" <david.jelenc at fri.uni-lj.si>
> wrote:
>
>> Hi Doron,
>>
>> many thanks for you suggestion. I did end up using your solution with
>> manual subscriptions.
>>
>> (There was a minor glitch when using it win a broker proxy, but it has
>> been fixed.)
>>
>> Best,
>> David
>>
>> On 31. 08. 2015 21:52, Doron Somech wrote:
>> > You can use xpub manual subscription, you can read more here:
>> >
>> > http://somdoron.com/2014/12/token-pubsub/
>> >
>> > If for NetMQ but applicable also for zeromq.
>> >
>> > On Mon, Aug 31, 2015 at 6:41 PM, David Jelenc
>> > <david.jelenc at fri.uni-lj.si <mailto:david.jelenc at fri.uni-lj.si>> wrote:
>> >
>> >     Hi,
>> >
>> >     I'm wondering if there is a way to explicitly deny a certain client
>> from
>> >     subscribing to a certain topic.
>> >
>> >     I have a broker set up, where some clients publish and other
>> subscribe.
>> >
>> >        client                              client
>> >     PUBLISHER -------- BROKER -------- SUBSCRIBER
>> >
>> >     PUB --- (XSUB | broker  logic | XPUB) --- SUB
>> >
>> >     Since I'm using a XPUB socket on the broker, I can see all
>> subscription
>> >     and subscription cancellation messages. However, once these messages
>> >     reach broker, the client is already subscribed.
>> >
>> >     Is there any way on how I can prevent a client from subscribing to
>> >     certain topics (while allowing the same client to subscribe to some
>> >     other) and enforce this on the broker side (in the broker logic)?
>> >
>> >     Any help would be greatly appreciated.
>> >
>> >     Best,
>> >     David
>> >     _______________________________________________
>> >     zeromq-dev mailing list
>> >     zeromq-dev at lists.zeromq.org <mailto:zeromq-dev at lists.zeromq.org>
>> >     http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>> >
>> >
>> >
>> >
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>> >
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