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support custom inbox prefixes #767

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merged 2 commits into from Aug 3, 2021
Merged

support custom inbox prefixes #767

merged 2 commits into from Aug 3, 2021

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ripienaar
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Signed-off-by: R.I.Pienaar rip@devco.net

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support custom inbox prefixes
559051c 
Signed-off-by: R.I.Pienaar <rip@devco.net>
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This has been discussed a few times, Derek mentioned he has some other ideas but that I should open this to start a discussion.

Let me know your thoughts, I think supporting this is pretty important for peoples ability to create private comms channels as it lets them make predictable inbox patterns

/cc @derekcollison @wallyqs @kozlovic

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coveralls commented Jun 29, 2021 •
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Coverage Status

Coverage increased (+0.1%) to 86.898% when pulling 7d68c97 on ripienaar:custom_inbox into 274aa57 on nats-io:master.

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So at a very high level we want to present a way for folks to make sure only they can see any given response and not have to abandon use of nc.Request() and the like correct?

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Well, that might be one possible outcome? I think there are many reasons to avoid a one-size-fits-all inbox pattern.

Even if not private in many of my use cases I prefix all related traffic by some string - I want the inboxes there too. That's not about privacy as such but about just managing ACLs

now of course I think we need private reply subjects that just work and don't require special ACLs and such, but thats probably more than I wish to tackle - I think we'll have inboxes like this for a long time

kozlovic
kozlovic reviewed Jun 29, 2021
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7d68c97 
Signed-off-by: R.I.Pienaar <rip@devco.net>
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Code LGTM, but will let Derek decide if we go with that or other approach.

@ripienaar ripienaar marked this pull request as ready for review July 7, 2021 10:33
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@derekcollison what are your thoughts here?

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I will try to find some time this week to think harder about it.

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@derekcollison this PR seems ok to me as is as discussed

Here's the matching feature in nats.java nats-io/nats.java@03c22e4 and .Net nats-io/nats.net#322

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If I supply a custom prefix of say "derek", does my inbox look like derek.NUID.NUID or does it look like derek._INBOX.NUID.NUID?

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_INBOX is replaced with prefix.

@derekcollison derekcollison self-requested a review August 2, 2021 17:13
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LGTM - Have not tested it but if it replaces _INBOX and tests pass looks good. I could use my own prefix of "_INBOX.derek" if I wanted as well for the use case we discussed.

@derekcollison derekcollison self-requested a review August 2, 2021 17:14
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LGTM

@ripienaar ripienaar merged commit ceb3147 into nats-io:master Aug 3, 2021
@ripienaar ripienaar deleted the custom_inbox branch August 3, 2021 08:54
This was referenced Aug 15, 2021
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kozlovic added a commit that referenced this pull request Sep 1, 2021
@kozlovic
[FIXED] Inboxes suffix would contain many zeros
eced299 
This was introduced by PR #767
when the nuidSize was used instead of replySuffixLen to just build
the reply suffix. This meant that the suffix part with 22 characters
long and had lots of zeros at the end.

Added a test to make sure we don't break that in the future.

Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
@kozlovic kozlovic mentioned this pull request Sep 1, 2021
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@kozlovic kozlovic mentioned this pull request Oct 7, 2021
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@derekcollison derekcollison derekcollison approved these changes

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