XSF logo XSF Discussion - 2018-01-03


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  108. Steve Kille does anyone have any idea why a fetch from github xsf/xeps is failing?
  109. Steve Kille I want to get the latest, so I can start on Dave's comments
  110. jonasw care to give more details?
  111. jonasw error message setc
  112. jonasw error messages etc
  113. Steve Kille Git GU says it is fetching, works for ages, and then complains connection timed out
  114. Steve Kille Has been fine before
  115. Steve Kille fatal: unable to access 'https://github.com/xsf/xeps/': Failed to connect to github.com port 443: Timed out
  116. jonasw hmm works for me
  117. jonasw can you open that https url manually in your browser?
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  119. Steve Kille fine in my browser
  120. Steve Kille pushes of commits to Guithub was working fine yesterday
  121. Steve Kille I did the fetch from a different network two days ago, so I guess it could be our proxy
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  123. Zash Proxies seem like a sensible thing to blame
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  130. Steve Kille yup - proxy
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  158. edhelas I'm thinking of extending 0277, having 2 nodes, one for public publication, one restricted to presences
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  174. goffi edhelas: we have since talked in private, but for the record I have tried the 2 nodes options years ago, and it doesn't work that well. The fine permission tuning (aka items permissions) is the best option from my experience. I still need to propose a protoXEP, but lacking time to write one.
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  216. edhelas I'd like to know if we can deprecate 0084 and go back to the good old "presence notification" for vcards
  217. edhelas we have 2 solutions and I though after 5 years that everyone will move to a full PEP solution
  218. edhelas that didn't worked
  219. edhelas also it doesn't work for MUC vcards
  220. edhelas also barelly no client is implementing it https://nl.movim.eu/?about#caps_widget_tab
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  222. moparisthebest edhelas, did you see inputmice's talk about it?
  223. edhelas I was at the 34c3
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  225. edhelas which talk ?
  226. moparisthebest might have been that one, doesn't that fix the problem server-side ?
  227. edhelas I didn't been to his talk then
  228. edhelas what was it about
  229. moparisthebest I'm trying to find a link but not having any luck yet
  230. edhelas https://github.com/iNPUTmice/talks/blob/master/2017_12_27_-_jabber_xmpp_the_past_the_presence_and_the_future.md
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  232. moparisthebest yep that's it specifically https://github.com/iNPUTmice/talks/blob/master/2017_12_27_-_jabber_xmpp_the_past_the_presence_and_the_future.md#avatars
  233. moparisthebest it's not perfect, but you see what happens when we try to create perfect, we get MIX, and it never goes anywhere
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  235. edhelas yup
  236. moparisthebest can I officially propose the future cut-down-to-useable-proportions MIX replacement be called MUX ?
  237. edhelas I just read about MUC-SUB https://docs.ejabberd.im/developer/xmpp-clients-bots/proposed-extensions/muc-sub/
  238. edhelas it's quite great, also retro-compatible
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  240. moparisthebest ah will read, I was only aware of https://xmpp.org/extensions/inbox/muc-light.html
  241. moparisthebest but retro-compatible sounds great
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  243. Ge0rG We could probably make a MUC-actor thing where your account joins MUCs on your behalf.
  244. Ge0rG Maybe even without changing the protocol.
  245. moparisthebest and requiring all user's servers to be updated would be a good test for how feasible mix is :)
  246. Ge0rG There are voices saying that the big servers will update fast.
  247. goffi is there any server MIX implementation based on current specs ? I know about the one from Ejabberd but it was on first draft and I don't think it has been maintained.
  248. edhelas same
  249. edhelas Muc/Pub is used by several clients in production as well
  250. moparisthebest which ones?
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  254. Holger moparisthebest: Commercial ones.
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  261. dwd goffi, We have a MIX implementation, but it's not quite the current spec.
  262. goffi dwd: is it public, can we test it ?
  263. dwd goffi, It is public-ish - in surevine's github in our Openfire fork. You'll need a real database, though - the embedded one doesn't work.
  264. dwd goffi, Also, no presence, since we didn't need that.
  265. goffi dwd: ok cool. Would be nice to have a simple wiki page with links to current implementations, so the day I want to start client implementation I can select a server one.
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  269. moparisthebest you need 2 server implementations though
  270. moparisthebest uh, in that your server needs support, as well as a mix component
  271. moparisthebest so when looking for server support you need those 2 different things right?
  272. MattJ It means MIX is going to take years (that's years + whatever time it takes to get implementations released)
  273. MattJ Because MIX is not usable by the ordinary user if they can't just invite anyone on their contact list, and most people are going to be running from OS packages
  274. moparisthebest years or never, like privacy lists, original archiving etc
  275. MattJ Privacy lists was pretty widely implemented, back in the day, actually :)
  276. MattJ Just with a terrible UI
  277. Ge0rG Damn, where's my "told you so" stamp?
  278. moparisthebest especially if you have something simple that solves 99% of use cases and is backwards compatible, like maybe this muc-sub thing, haven't read it yet
  279. edhelas Ge0rG you didn't had enough ink to stamp last time, need to buy more
  280. edhelas muc-sub seems to be a good 50%-50% between the two XEPs
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  297. Flow moparisthebest: which "future cut-down-to-useable-proportions MIX replacement"?
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  308. moparisthebest Flow, all I know is it should be called MUX
  309. moparisthebest I'm just assuming there will be one in the great tradition of the XSF
  310. Ge0rG Flow: is it possible that smack will never cache entity caps for JIDs it didn't previously receive presence from? https://github.com/igniterealtime/Smack/blob/master/smack-extensions/src/main/java/org/jivesoftware/smackx/disco/ServiceDiscoveryManager.java#L510
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  314. Flow moparisthebest, i'm not sure about it, but I would really like a little competition
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  318. Flow Ge0rG, possible, I think Smack should maybe calcucate the version itself
  319. Ge0rG Flow: yeah. Just noticed that in smack3, I only have persistent cache items from my own caps
  320. Flow I can tell from the variable naming that this is veery old code ;)
  321. Ge0rG it's actually the same in smack3:P
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  324. Flow looks like a good incentive to start on caps2
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  331. Flow on a second look, that code locks correct, and is covered by integration tests
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  369. pep. reading daniel's talk re avatars. Does 0153 really requires you to download your own avatar on every connection? If you have it locally you can just hash it and compare to what the server is sending you, right?
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  372. daniel pep.: how do you know it hasn't been changed by another client?
  373. pep. You hash the one you have locally and compare it, if it's not the same your redownload it
  374. pep. I mean there's not need to download it _everytime_
  375. pep. right?
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  377. moparisthebest don't you have to download it to calculate the hash?
  378. pep. You have a copy locally right?
  379. pep. What's different from PEP here?
  380. moparisthebest how does that tell you what's on the server?
  381. pep. "A client MUST NOT advertise an avatar image without first downloading the current vCard", that's meh
  382. pep. Indeed.
  383. pep. Isn't there a way that the server sends back a hack of the current avatar instead?
  384. lovetox what do you mean with is there a way
  385. lovetox like with a current xep?
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  387. lovetox no, but it would probably be trivial to add to 0153 that the server sends the hash on request
  388. pep. Well, not 0084, as it doesn't work in groupchats
  389. lovetox ..
  390. pep. yeah
  391. lovetox but downloading a vcard is really nothing i would sweat about
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  393. pep. I don't know, daniel put it in "downsides" in his talk
  394. lovetox i guess on mobile it is sometimes a downside
  395. lovetox and its not particular pretty
  396. pep. yeah but it's not like it couldn't be fixed
  397. lovetox but nothing that would stop me implementing it
  398. moparisthebest pep., more trivial than not changing the xep and having a server plugin just do it all for you? :P
  399. moparisthebest either way you are writing code and deploying it to a server
  400. moparisthebest I like daniel 's approach better
  401. pep. moparisthebest, sure, things take time. But 153 has been out for a while now
  402. lovetox but 153 is historical
  403. lovetox i dont think these are meant to be changed
  404. pep. Hmm.
  405. pep. How do you change that? You fork it?
  406. moparisthebest what problem are you trying to solve
  407. lovetox and do a pr, but i guess this will not make it :)
  408. moparisthebest why would you try to solve it with a xep change, client change, and server change
  409. moparisthebest when you could solve it with just a server change, and end up with a simpler client using less bandwidth?
  410. pep. lovetox, yeah, honestly I don't really care
  411. pep. I have enough GB on my plan so that it doesn't matter at all
  412. moparisthebest it's not really that, it's the added time a connection takes in my opinion
  413. pep. I just find sad that we have to go through convoluted ways (PEP -> vcard) to fix this kind of things
  414. moparisthebest the other way sounds far more convoluted
  415. pep. How so? Making people update their software ?
  416. pep. How so? Making people update their software?
  417. daniel > I just find sad that we have to go through convoluted ways (PEP -> vcard) to fix this kind of things I find that extremely simple and straightforward
  418. daniel And it's already supported by the important servers
  419. moparisthebest pep., again "xep change, client change, and server change, and clients use more bandwidth" vs "server change (major servers already support it)"
  420. moparisthebest which sounds easier and more preferable?
  421. pep. So that means if I want to implement a server, I'll have to support both 0153 _and_ 0084 (and PEP) for avatars? Plus also the PEP -> vcard thing
  422. pep. How isn't this convoluted
  423. pep. (No I'm not planning to implement a server, still I hope you get my point)
  424. moparisthebest ok, well you have to support both 0153 _and_ 0084 anyway
  425. moparisthebest I guess you might complain about converting, but a sane structure would have you storing them in the same place anyway?
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  428. pep. I'm complaining about the workarounds mostly. I'm not sure how fixing a historical XEP works, but adding a "Server returns vcard hash" wouldn't be difficult
  429. pep. heh, the compliance suite doesn't state 153 at all?
  430. moparisthebest also your argument seems to be make it slightly easier to write a new server by making all existing servers add features to existing historical plugins
  431. moparisthebest still not buying it
  432. moparisthebest when in doubt go with the simplest thing that works
  433. moparisthebest KISS
  434. pep. moparisthebest, not "historical plugins" no, just "mostly used solutions", just like edhelas showed above, 0084 isn't really implemented anywhere
  435. pep. Also 0084 doesn't work anyway, re groupchats
  436. daniel I'd rather you not write a new server in the first place
  437. pep. daniel, sure
  438. pep. s/mostly/most/
  439. moparisthebest I'm just waiting for Link Mauve to write a server in rust so I can switch
  440. pep. I don't think xmpp-rs is going to be designed for servers
  441. moparisthebest I don't care what library he uses :)
  442. pep. heh. I don't think he's mad enough to do that anyway
  443. Link Mauve You never know!
  444. pep. I know you're mad, don't worry
  445. moparisthebest on a side note, why are the majority of major xmpp servers written in crazy esoteric languages :)
  446. Link Mauve :p
  447. moparisthebest does that say something about the people who use xmpp :'(
  448. pep. Link Mauve, any idea what's become of Freyskeyd and his talk of writing a server?
  449. pep. https://github.com/Freyskeyd/xmpp-rs/tree/master/server
  450. pep. fn it_works() {} :)
  451. Link Mauve pep., he seems to have stopped working on his library altogether.
  452. moparisthebest "It's goal is to be fully tested and usable."
  453. moparisthebest he is halfway there (it's fully tested)
  454. pep. it even says it works!
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  456. moparisthebest is anyone aware of any xmpp test domains for client and/or server devs to test proper srv fallback etc ?
  457. moparisthebest similar to like http://www.dnssec-failed.org/ for testing dnssec
  458. moparisthebest many, possibly most, clients and such don't end up falling back correctly or at all turns out
  459. moparisthebest like they fallback if the port isn't listening, but not if it sends invalid xml, or doesn't support ciphers it likes, or various other errors
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  461. Holger moparisthebest: You're suggesting Rust for an internet service and complaining about esoteric language choices?
  462. moparisthebest no I think rust would neatly fall in there right now
  463. moparisthebest (the esoteric lang category)
  464. Holger pep.: I think it's right to have the complexity on the server side.
  465. Link Mauve moparisthebest, you can use OpenFire or Tigase, for a very non-esoteric language.
  466. Link Mauve There is also Jabberd and Jabberd2.
  467. Link Mauve People have been writing one in PHP and one in JS too IIRC.
  468. Link Mauve I would know, I’ve written one in JS.
  469. Link Mauve (Never again. ;_;)
  470. moparisthebest I'd guess ejabberd/prosody/openfire is most of the public network though, and if so, that's 66% esoteric langs :P
  471. moparisthebest and my guess is openfire is distant 3rd there
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  489. pep. Holger, what annoys me the most is that, from what I understand, we're just choosing the path of least resistance for the features we want out there. Yes we are mostly volonteers, and I get we don't have all the time we want. Plus users are running old software (debian I'm looking at you), etc., Still I don't think we should stop here
  490. pep. "That only has to be implemented server-side, let's prefer that over X", I'm not really into this kind of thought
  491. moparisthebest pep., good luck getting anything actually put into use then :) (looking at you MIX yet again)
  492. pep. daniel, do you have stats btw of what version of Conversations people are using?
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  494. pep. Or maybe services like jabberfr do? (Link Mauve, mathieui)
  495. daniel pep.: no
  496. mathieui pep., I don’t think there’s a prosody module for that yet
  497. Holger pep.: The amount of madness a client developer new to XMPP is confronted with is insane. Avatar support is a very basic IM feature. We should be able to show him a simple XEP he needs to implement to make avatars 'just work'. If server-side hacks help with hiding the compatibility madness from him, I'd prefer those hacks.
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  499. pep. For this particular case I'm not sure what's best, implement PEP _and_ 0084 _and_ 0153, or fix 0153 to have the small fix we talked about earlier, and implement only that
  500. pep. As a client developer, maybe I'm biased :P
  501. moparisthebest so implement only the historical one?
  502. moparisthebest seems questionable
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  504. pep. moparisthebest, if you come up with a non-historical just for the sake of it, that has the same features, and make people use it, why not
  505. moparisthebest I'm also under the impression the pep one is easier for clients
  506. Holger Well but by now both are implemented.
  507. pep. That's why people are trying to shoehorn everything into PEP?
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  509. moparisthebest it's done, accept the fact and move on 😛
  510. Holger I don't know why they are. I would've been opposed to that if I had been around back then.
  511. pep. moparisthebest, I would if it worked
  512. Holger I'm just saying we have both now, and we either deal with that or we break interop.
  513. moparisthebest omemo requires it too
  514. moparisthebest probably other things I don't really know about?
  515. daniel Neither 84 nor 153 are particularly difficult to implement.
  516. daniel On the client side that is
  517. pep. daniel, it's just an example
  518. daniel For what?
  519. pep. For what I said to Holger above, we're just choosing the path of least resistance, "because this way we'll have it implemented and usable no matter how ugly/workaroundy that is"
  520. pep. That's just a feeling, I would be happy to be proven wrong
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  523. daniel I have quite the opposite impression. The Xsf is the textbook example of perfect is the enemy of good. That's why we have so many widely deployed XEPs stuck in experimental.
  524. moparisthebest if you want to fully reinvent the wheel pull a matrix :)
  525. daniel That's why we have been working on mix for three years now
  526. pep. moparisthebest, that's not my point.
  527. pep. daniel, true
  528. moparisthebest I agree daniel my impression is we create a complex monster of a xep where all possible usecases have to be fulfilled rather than a much simpler solution that fills 90% of usecases
  529. pep. so.. MIX and avatars are two extremes? :p
  530. daniel pep., moparisthebest: fwiw I'm not trying to be overly negative towards mix here. But choosing the complex solution over the much simpler one that fills 90% of the use cases is a pattern I see in a lot of XEPs
  531. pep. daniel, gotcha. I guess I wasn't around long enough
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  539. pep. Anybody implementing 0306?
  540. pep. -xep 306
  541. Bunneh pep.: Extensible Status Conditions for Multi-User Chat (Standards Track, Deferred, 2016-06-07) See: https://xmpp.org/extensions/xep-0306.html
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  546. MattJ pep., none that I know of
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