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  72018-12-20T00:28:19  <jnewbery> achow101: +1. I think we'd want to merge #13100 (and hence complete https://github.com/bitcoin/bitcoin/projects/2) before we enforced that
  82018-12-20T00:28:22  <gribble> https://github.com/bitcoin/bitcoin/issues/13100 | gui: Add dynamic wallets support by promag · Pull Request #13100 · bitcoin/bitcoin · GitHub
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 102018-12-20T00:38:01  <sipa> jnewbery: (can't comment on github right now) i intentionally do not want to print private keys in error messages; they may be logged in places where they shouldn't
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 452018-12-20T02:08:29  <promag> jnewbery: #13100 branch locally has a pile of changes, maybe I should cut down to the minimum and improve on follow ups
 462018-12-20T02:08:32  <gribble> https://github.com/bitcoin/bitcoin/issues/13100 | gui: Add dynamic wallets support by promag · Pull Request #13100 · bitcoin/bitcoin · GitHub
 472018-12-20T02:14:37  <gwillen> I ran into an interesting wallet issue with multisig when trying to demo my offline signing work that's still ongoing
 482018-12-20T02:14:44  *** e4xit has quit IRC
 492018-12-20T02:15:03  <gwillen> which is that (1) there's no way to stop a wallet that I intend to use as only-watchonly from generating keys, and (2) spending from a multisig automatically sends change to those keys I didn't actually want generated
 502018-12-20T02:15:37  <gwillen> I suspect that RPC users of multisig are already aware of this footgun and handle change manually, and I am planning to adopt "manual change address" as a stopgap for GUI use
 512018-12-20T02:15:55  <gwillen> until we have descriptors which should hopefully solve this
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 532018-12-20T02:16:17  <gwillen> but I'm going to push again for the idea that a given wallet ought to be either only-watchonly or non-watchonly
 542018-12-20T02:16:40  <gwillen> and that mixing a local keypool into a transaction sending from not the local keypool is scary
 552018-12-20T02:17:07  <gwillen> although I guess I asked for this kind of issue by tricking / cajoling the wallet into creating a transaction spending from a "solvable" but not "spendable" coin
 562018-12-20T02:17:13  <gwillen> because what else should it do
 572018-12-20T02:17:34  <sipa> gwillen: there is a recently introduced feature to make a wallet in no-private-keys mode
 582018-12-20T02:18:35  <gwillen> ooh, beautiful, that sounds perfect for preventing this
 592018-12-20T02:18:47  <gwillen> do you happen to know, if the wallet is called on to create change in that mode, what will it do? Just give up?
 602018-12-20T02:19:13  <gwillen> (and how do I engage this mode)
 612018-12-20T02:19:47  <sipa> i don't know; i'm currebtly flying, it's a bit hard to check :)
 622018-12-20T02:19:54  <gwillen> (and does it make sense that I imagine descriptors will solve this, since if I'm spending from a given descriptor, that same descriptor or a related descriptor should be used to derive where change goes?)
 632018-12-20T02:20:06  <gwillen> np, I'm about to head to dinner anyway, just wanted to start thinking about it
 642018-12-20T02:21:38  <sipa> gwillen: no, you'll just have 2 specially designated descriptors in a wallet; one where receive addresses are drawn from, and one where change is drawn from
 652018-12-20T02:22:00  <sipa> so yes, that's a solution by making change selection explicit and separate from the wallet's keys
 662018-12-20T02:23:40  <gwillen> ok great, thanks for validating my hope that all my problems will be solved in the future
 672018-12-20T02:24:05  <gwillen> I know I said that I didn't want to wait for descriptors, but actually the change problem means this is going to kind of suck without them
 682018-12-20T02:24:22  <gwillen> it's going to have to be either manual change or address reuse
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 702018-12-20T02:25:30  <gwillen> do descriptors-as-envisioned have support for HD + multisig in some fashion?
 712018-12-20T02:25:58  <sipa> ure
 722018-12-20T02:26:00  <sipa> sure
 732018-12-20T02:26:07  <gwillen> I assume it would be something like "2 of 3 of keys derived from X/Y/Z" and it automatically increments all three together, or something, when generating a new address?
 742018-12-20T02:26:45  <gwillen> (the question also came up in conversation today of whether there is a good way to support multiple people generating addresses from the same keys e.g. the holders of a multisig, and not accidentally generating the same address)
 752018-12-20T02:26:46  <sipa> yes... have you ever read the descriptors description (no pun intended)?
 762018-12-20T02:26:54  <sipa> doc/descriptors.md in the repo
 772018-12-20T02:26:55  <gwillen> (e.g. by letting them generate from different subpaths)
 782018-12-20T02:27:00  <gwillen> ha, it's been awhile, I will reread, thanks
 792018-12-20T02:27:51  <gwillen> ah yes, I see it specifically addresses this, cool
 802018-12-20T02:28:06  <sipa> you can just say mukti(2,xpubpath/*,xpub/path/*,xpub/path/*) and it will expand to equal-last-index entries from the xpubs
 812018-12-20T02:28:11  <sipa> *multi
 822018-12-20T02:28:12  <gwillen> *nods*
 832018-12-20T02:28:59  <gwillen> and I guess supporting multiple derivation paths would be easiest by just using multiple descriptors
 842018-12-20T02:29:28  <gwillen> e.g. I have a wallet that has "my" descriptors that it uses to generate addresses, and "your" descriptors that it only uses to watch the chain, and it treats them both as "mine"
 852018-12-20T02:29:39  <sipa> right
 862018-12-20T02:29:44  <gwillen> (this is purely to prevent collisions if we're independently generating receive addresses to the same wallet)
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 982018-12-20T03:26:55  <achow101> gwillen: createwallet has a disable private keys parameter so you can make a wallet without any privkeys
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1012018-12-20T03:39:31  <gwillen> achow101: thanks, I hadn't been using createwallet, I was just adding --wallet= and it created it for me
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1952018-12-20T10:08:14  <meshcollider> Is there a meeting tomorrow or not due to Christmas?
1962018-12-20T10:08:28  <meshcollider> Today* for some of you in incorrect timezones
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1992018-12-20T10:18:08  <sipa> meetings are cancelled for the holidays i think
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2082018-12-20T10:35:48  <meshcollider> Ok
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2162018-12-20T10:52:28  <provoostenator> I still don't like that -wallet automatically creates a new wallet.
2172018-12-20T10:52:32  *** aqk has joined #bitcoin-core-dev
2182018-12-20T10:52:51  <promag> provoostenator: why?
2192018-12-20T10:53:13  <provoostenator> Because of the confusion gwillen described, but also because a typo leads to a new wallet.
2202018-12-20T10:53:25  <provoostenator> E.g. forgetting to add ".dat"
2212018-12-20T10:53:42  <promag> the same typo can happen in createwallet rpc?
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2232018-12-20T10:54:15  <provoostenator> The problem is when you're trying to open an existing wallet and instead it creates a new one.
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2252018-12-20T10:55:06  <promag> ah
2262018-12-20T10:55:21  <provoostenator> The behavior made sense before we had dynamic wallet loading support, but I think it could be deprecated now, e.g. initially with a warning "In the future, use createwallet to create a new wallet"
2272018-12-20T10:56:14  <promag> provoostenator: we need #13100 first
2282018-12-20T10:56:17  <gribble> https://github.com/bitcoin/bitcoin/issues/13100 | gui: Add dynamic wallets support by promag · Pull Request #13100 · bitcoin/bitcoin · GitHub
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2302018-12-20T10:56:50  <promag> but I think that's reasonable
2312018-12-20T10:57:20  <promag> provoostenator: another alternative is to create wallet if -wallet is specified on the command line
2322018-12-20T10:57:28  <promag> -wallet on the config only loads?
2332018-12-20T10:58:28  <promag> otoh, if you want to launch a container and create a wallet xxx how would you do it?
2342018-12-20T11:00:28  <promag> for instance, postgres docker image has an entrypoint that initializes the database on the first run, and in that script it waits for the server to be available to execute the init sql
2352018-12-20T11:01:48  <promag> deprecate -wallet and add both -createwallet and -loadwallet
2362018-12-20T11:05:40  <provoostenator> Getting 13100 in makes sense for the GUI, but creating new wallets is "advanced" enough in my opinion that we can ask users to use the RPC console for that. But let's just get it merged.
2372018-12-20T11:06:05  <provoostenator> Not a fan of making commandline behavior different from config file.
2382018-12-20T11:06:55  <provoostenator> Interesting point about doing things on first.
2392018-12-20T11:06:58  <provoostenator> lad
2402018-12-20T11:06:59  <provoostenator> load
2412018-12-20T11:07:25  <provoostenator> That's a genertic problem though, most RPC operations don't immediately work. We could add a "wait_for_rpc_to_wake_up" ish call.
2422018-12-20T11:08:27  <provoostenator> The last time I had to deal with that issue I just polled until it stopped throwing errors :-)
2432018-12-20T11:09:04  <gmaxwell> we have a longstanding request to only create wallets when either told to encrypt OR when asked for an address.
2442018-12-20T11:09:31  <gmaxwell> As this would fix the problem of an unencrypted wallet being created first and ending up with a bunch of unused retired keys in it when you encrypt.
2452018-12-20T11:10:09  <gmaxwell> also solves the problem where the user starts up, backs up their wallet, then encrypts .... and doesn't backup again, and their backup is no good. (solves it because there wouldn't be a wallet file to backup at that point)
2462018-12-20T11:10:16  <provoostenator> There's that issue too. It could be solved by adding a password argument to createwallet.
2472018-12-20T11:10:27  <provoostenator> However that doesn't handle the default wallet case.
2482018-12-20T11:10:38  <gmaxwell> there shouldn't be a default wallet, is what I'm saying
2492018-12-20T11:10:52  <gmaxwell> one should get created on demand.
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2512018-12-20T11:11:15  <gmaxwell> We tried to make the change previously but prior to dynamic wallet support it wasn't easy to implement, it probably is now.
2522018-12-20T11:11:18  <provoostenator> Ah yes, then the entire problem goes away. RPC methods that expect a wallet would just throw "create wallet first", and the GUI would have to be smart enough to create a wallet just in time.
2532018-12-20T11:11:39  <gmaxwell> Right.
2542018-12-20T11:12:09  <gmaxwell> and it would also improve the problem that developers get where you end up with 50 wallet files and aren't sure which of them you can throw away. :P
2552018-12-20T11:12:42  <provoostenator> That indeed seems doable once 13100 is in. promag: when rebase? :-)
2562018-12-20T11:12:56  <sipa> december 23rd seems like a good date to get rid of openssl: https://www.openssl.org/blog/blog/2018/12/20/20years/
2572018-12-20T11:13:05  <gmaxwell> and yes, indeed, create should be able to take a passphrase so that a wallet can be born encrypted.
2582018-12-20T11:13:17  <sipa> gmaxwell: there is a PR for that
2592018-12-20T11:13:31  <sipa> #15006
2602018-12-20T11:13:32  <promag> provoostenator: it will be your xmas gift :D
2612018-12-20T11:13:33  <gribble> https://github.com/bitcoin/bitcoin/issues/15006 | Add option to create an encrypted wallet by achow101 · Pull Request #15006 · bitcoin/bitcoin · GitHub
2622018-12-20T11:14:02  <provoostenator> promag: awesome. I'm fine with the idea of splitting the prerequisite stuff out of it, but I also think the PR is small enough to review as a whole.
2632018-12-20T11:14:19  <provoostenator> However, splitting some stuff out keeps the UI bikeshedding seperate.
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2652018-12-20T11:16:08  <gmaxwell> sipa: ack on openssl.
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2862018-12-20T12:24:22  <promag> btw, I think all wallets commands should have the passphrase argument
2872018-12-20T12:25:17  *** aqk has joined #bitcoin-core-dev
2882018-12-20T12:25:27  <promag> i mean, why would a wallet be unencrypted for others for a short period of time?
2892018-12-20T12:28:16  <wumpus> agree
2902018-12-20T12:29:07  <wumpus> making it possible to have wallet 'born encrypted' was one of the goals of multiwallet
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2942018-12-20T12:38:11  <wumpus> oh, you mean actually *passing the passphrase argument* for unlocking for every command... neutral on that, I guess with named arguments it's somewhat less of a hassle now than before. I think there's something to be said for the current time-locked functionalit as well as it means not all wallet-using commands have to know the passphrase.
2952018-12-20T12:39:10  <wumpus> now it could be some separate process that unlocks periodically, or when necessary; imagine the client code having to pass through the passphrase everywhere
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3012018-12-20T12:51:15  <gmaxwell> I think it would be interesting to support, but it would not be very usable to use that way normally.
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3072018-12-20T13:00:00  *** Chris_Stewart_5 has quit IRC
3082018-12-20T13:01:33  <promag> wumpus: gmaxwell: I think we could support unlock per connection only
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3122018-12-20T13:02:44  <promag> so the connection would hold the wallet lock and so no other connections could interact with that wallet
3132018-12-20T13:03:12  <wumpus> connection specific state really breaks the http abstraction
3142018-12-20T13:03:29  <promag> meaning that the wallet could stay unencrypted
3152018-12-20T13:03:43  <wumpus> I also don't see why multiple connections wouldn't be allowed to interact with a wallet, this is something for the external software to coordinate!
3162018-12-20T13:03:47  <promag> wumpus: for rest yes, but does that hold for rpc?
3172018-12-20T13:04:28  <promag> wumpus: and then there is also batch
3182018-12-20T13:04:39  <wumpus> I know, but I don't really like it
3192018-12-20T13:04:56  *** Chris_Stewart_5 has joined #bitcoin-core-dev
3202018-12-20T13:05:42  <wumpus> a) connections time out, so there'd need to be some hack to keep them open to prevent locking the wallet b) I remember convention is that a connection is closed when there is *any* http error
3212018-12-20T13:06:01  <wumpus> for another RPC protocol it might be acceptable, but http just isn't suited to what you want to do
3222018-12-20T13:06:05  *** hebasto has quit IRC
3232018-12-20T13:06:30  <wumpus> bolting it on in a bitcoin specific way seems a bad idea
3242018-12-20T13:06:41  *** owowo has joined #bitcoin-core-dev
3252018-12-20T13:07:45  <promag> I just think walletpassphrase is bad
3262018-12-20T13:07:47  <wumpus> client libraries likely won't have fine-grained control what to send over one conection
3272018-12-20T13:08:00  <promag> it's like doing sudo xxx and then everyone on the system has sudo
3282018-12-20T13:08:14  <wumpus> well RPC supports multiple users now
3292018-12-20T13:08:28  <gmaxwell> promag: being able to send a passphrase that applies to a single call, and only that call, wouldn't have that effect.
3302018-12-20T13:08:35  <wumpus> could use that if you want to restrict the scope of an unlock...
3312018-12-20T13:09:00  <wumpus> that at least is completely compatible with how authentication is used normall...
3322018-12-20T13:09:25  *** hebasto has joined #bitcoin-core-dev
3332018-12-20T13:09:44  <promag> we could send the passphrase as a query parameter (in the URL)?
3342018-12-20T13:09:53  <wumpus> though I don't really like more and more 'business rule' kind of functionality leaking into bitcoin core, it reminds me a bit of the account stuff, it's so specific on your applciation
3352018-12-20T13:09:57  <wumpus> nooOOOO
3362018-12-20T13:10:02  <wumpus> never embed passwords in URLs
3372018-12-20T13:10:04  <wumpus> never
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3392018-12-20T13:10:50  <gmaxwell> Whats wrong with making walletpassphrase an automatic named argument to _every_ rpc, and if the rpc can make use of the passprase, they use it... without unlocking.
3402018-12-20T13:11:06  <gmaxwell> so then you can authenticate single sends without opening anything up.
3412018-12-20T13:11:21  <gmaxwell> and without any kind of crazy connection-session state.
3422018-12-20T13:11:21  <wumpus> yes
3432018-12-20T13:11:35  <promag> gmaxwell: just fine!
3442018-12-20T13:11:54  <promag> so we would add customer support to each RPC
3452018-12-20T13:11:56  <wumpus> as said I'm neutral on that
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3472018-12-20T13:12:04  <gmaxwell> I think probably I would use that... provide the phassphrase on signrawtransaction/etc. and not otherwise.
3482018-12-20T13:12:06  <promag> s/customer/custom
3492018-12-20T13:12:48  <gmaxwell> promag: well I think the way we'd do that is with a  utility function for rpcs that need an unlock, that checks if its already unlocked or otherwise gets access to it via the passphrase in the argument.
3502018-12-20T13:13:02  <gmaxwell> (and otherwise fails)
3512018-12-20T13:13:15  <promag> ok
3522018-12-20T13:13:29  <promag> so concept ACK?
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3542018-12-20T13:13:57  <gmaxwell> there are only a couple RPCs that can make use of unlocking (the send, sign, dump ones).
3552018-12-20T13:14:01  <wumpus> you should ask the wallet maintainer :)
3562018-12-20T13:14:17  *** mileschet has joined #bitcoin-core-dev
3572018-12-20T13:14:27  <promag> this way no one would be able to "steal" from a wallet in that short period of time
3582018-12-20T13:14:39  <wumpus> agree
3592018-12-20T13:14:48  <promag> meshcollider: ^
3602018-12-20T13:15:07  <gmaxwell> promag: yes, it would reduce exposure slightly... though god knows we probably have an RCE burried in some RPC. :P
3612018-12-20T13:15:19  <promag> RCE?
3622018-12-20T13:15:21  *** cluelessperson has joined #bitcoin-core-dev
3632018-12-20T13:15:30  <gmaxwell> remote code execution (bug).
3642018-12-20T13:16:01  <promag> huh, do you even consider that?
3652018-12-20T13:16:34  <gmaxwell> promag: I mean the addition of this would not change that I would recommend against letting the rpc be used by less trusted parties.
3662018-12-20T13:16:53  <wumpus> well you're afraid of local users, *with* credentials, and access to the RPC, stealing funds; then you're regarding the RPC as a hardened interface
3672018-12-20T13:17:03  <promag> oh right
3682018-12-20T13:17:12  <gmaxwell> The thing I like about the passphrase argument approach is that it's also quite compatible with cli usage... so it will be used, not just some vague enterprise feature which may or may not get used and we won't get feedback about it. :)
3692018-12-20T13:17:20  <promag> I just think walletpassphrase as a global switch is a bad concept
3702018-12-20T13:17:39  <gmaxwell> promag: also txfee is another 'global' thing which could be scoped this same way.
3712018-12-20T13:17:44  <promag> agree
3722018-12-20T13:18:01  <gmaxwell> I don't believe there are any others re wallet behavior?
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3742018-12-20T13:18:40  <gmaxwell> FWIW, GUI will also prompt on demand and not leave things unlocked.
3752018-12-20T13:19:07  *** mileschet has quit IRC
3762018-12-20T13:19:11  <promag> good point
3772018-12-20T13:19:19  <gmaxwell> promag: the main utility of the time based unlock is this use case:  You have an online hot wallet, you want if the daemon gets shut off that you have to log in and unlock it again yourself.
3782018-12-20T13:20:19  <gmaxwell> promag: it turns out that in a significant percentage of commercial system compromises we've heard reported (maybe a majority), someone gets remote access but causes a reboot in the process. (e.g. by getting into a server admin console, or convincing remote hands to change the root password).
3792018-12-20T13:20:29  <wumpus> it allows for some separateion of concerns; in any case your idea wouldn't replace it
3802018-12-20T13:20:42  <gmaxwell> So several big users have had their bacon saved by that setup.
3812018-12-20T13:21:09  <gmaxwell> but its okay we could continue to support both ways of using it.
3822018-12-20T13:21:09  <wumpus> I'm ok with the pass-a-passphrase as an option, but not deprecating the old behavior
3832018-12-20T13:21:15  <promag> I see
3842018-12-20T13:21:21  <gmaxwell> (thats why I'm explaining that usage)
3852018-12-20T13:21:44  <wumpus> it also feels like changing things just to change them, just because you don't like it, all users have to change their usage
3862018-12-20T13:22:07  <gmaxwell> In an ideal world, I think it would even be best if that usage had two stages of authorization--- a startup key and a usage key, but  I think we shouldn't worry about that for now and leave improvements like that to external key handling processes.
3872018-12-20T13:22:21  <promag> one time usage key yes
3882018-12-20T13:23:07  *** aqk has joined #bitcoin-core-dev
3892018-12-20T13:23:40  <promag> I'm working on #13100 and then maybe I'll try adding the passphrase to some RPC
3902018-12-20T13:23:44  <gribble> https://github.com/bitcoin/bitcoin/issues/13100 | gui: Add dynamic wallets support by promag · Pull Request #13100 · bitcoin/bitcoin · GitHub
3912018-12-20T13:24:10  <promag> thanks guys
3922018-12-20T13:24:40  <wumpus> np
3932018-12-20T13:25:02  <gmaxwell> FWIW, the way I often recommend people use walletpassphrase is with a really dumb key (say like "password") that they could never forget... just so they can feel more confident using their wallet without worrying that they'll accidentally send funds somewhere.
3942018-12-20T13:25:53  *** promag has quit IRC
3952018-12-20T13:26:24  <wumpus> makes sense
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4202018-12-20T14:56:10  <jnewbery> wumpus: https://github.com/bitcoin-core/univalue/pull/17 has three ACKs. May be ready for merge?
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4222018-12-20T14:59:36  <jnewbery> sipa: ACK not printing private keys in error messages. You're right that it's a terrible idea.
4232018-12-20T15:00:22  <jnewbery> More generally, my review comments about improving error messages were mostly meant as notes for me or anyone else who wants to do a follow-up PR to improve error messages and testing. I don't think they need to change in your PR.
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4382018-12-20T16:20:26  *** bitcoin-git has joined #bitcoin-core-dev
4392018-12-20T16:20:27  <bitcoin-git> [bitcoin] jnewbery opened pull request #15010: [wallet] Fix getbalance with minconf (master...fix_getbalance_with_minconf) https://github.com/bitcoin/bitcoin/pull/15010
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4422018-12-20T16:30:05  <provoostenator> Tangential to adding wallet password to RPC calls, I'd like a way to enter said password in a way that doesn't end up in bash history (there might already be a PR for that).
4432018-12-20T16:30:28  <provoostenator> That would be a change at the bitcoin-cli level.
4442018-12-20T16:31:48  <timothy> provoostenator: it's not a problem of bitcoin-cli, you cannot disable history in called command
4452018-12-20T16:31:54  *** grubles has joined #bitcoin-core-dev
4462018-12-20T16:32:05  <timothy> you can do: unset HISTFILE before using a command that includes the password
4472018-12-20T16:32:38  <timothy> (bitcoin-cli already have -stdin)
4482018-12-20T16:32:43  <wumpus> yes, private keys in error messages is almost as bad as private keys in the log (as the client application will most likely log them)
4492018-12-20T16:33:33  <provoostenator> timothy: bitcoin-cli could prompt for a password rather than expecting it as an argument
4502018-12-20T16:33:59  <timothy> provoostenator: you can pass it by using -stdin option
4512018-12-20T16:34:02  <gmaxwell> provoostenator: you can tell bash to not save any line that begins with a space or has certian strings in it.
4522018-12-20T16:34:08  <gmaxwell> (or use -stdin)
4532018-12-20T16:38:16  <provoostenator> I didn't know about stdin. That's useful indeed, might be worth mentioning in the walletpassphrase RPC help.
4542018-12-20T16:42:18  *** profmac has quit IRC
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4602018-12-20T16:54:32  <bitcoin-git> [bitcoin] MarcoFalke closed pull request #14932: ui: Warn the user on file corruption in mempool.dat (master...Mf1812-testFileCorruption) https://github.com/bitcoin/bitcoin/pull/14932
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4622018-12-20T16:58:44  *** bitcoin-git has joined #bitcoin-core-dev
4632018-12-20T16:58:44  <bitcoin-git> [bitcoin] MarcoFalke pushed 3 new commits to master: https://github.com/bitcoin/bitcoin/compare/cb52cee29d0d...86e0a33f5c38
4642018-12-20T16:58:45  <bitcoin-git> bitcoin/master e982f0b andrewtoth: Add all category options to wallet rpc help
4652018-12-20T16:58:45  <bitcoin-git> bitcoin/master f3f6dde andrewtoth: Test coinbase category in wallet rpcs
4662018-12-20T16:58:46  <bitcoin-git> bitcoin/master 86e0a33 MarcoFalke: Merge #14653: rpcwallet: Add missing transaction categories to rpc helptexts...
4672018-12-20T16:58:46  *** bitcoin-git has left #bitcoin-core-dev
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4692018-12-20T16:59:18  <bitcoin-git> [bitcoin] MarcoFalke closed pull request #14653: rpcwallet: Add missing transaction categories to rpc helptexts (master...listtransactions-help) https://github.com/bitcoin/bitcoin/pull/14653
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4722018-12-20T17:11:27  <moneyball> We have one proposed topic for today's meeting https://gist.github.com/moneyball/071d608fdae217c2a6d7c35955881d8a
4732018-12-20T17:14:00  <gmaxwell> I thought the meetings were all canceled.
4742018-12-20T17:15:21  <gmaxwell> like every meeting everwhere. (is this why US markets are at a 52 week low? :P  you'd think the end of meetings and their overheads would be a boon to the GDP...)
4752018-12-20T17:21:21  <moneyball> ah indeed, i see sipa mentioned that now.
4762018-12-20T17:23:38  *** laptop__ has joined #bitcoin-core-dev
4772018-12-20T17:23:48  <sipa> i doubt i'll be awake in 1.5h in any case
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4802018-12-20T17:38:46  <achow101> gmaxwell: I'm not sure that creating the wallet on use is possible even with multiwallet. however getting rid of the default wallet and forcing the user to just make a wallet themselves certainly is
4812018-12-20T17:39:05  <achow101> I'm planning on implementing the latter, as the former looks to be fairly complicated and fragile
4822018-12-20T17:48:03  *** owowo has quit IRC
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4842018-12-20T17:55:55  <sipa> achow101, gmaxwell: one possibility is creating a dummy CWallet object for freshly created wallets initially, without file to back it, and the  only materializing it on firet use
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4932018-12-20T18:34:53  <Csus> Hi - I'm trying to setup a full node on Raspberry pi. ./configure CPPFLAGS="-I/usr/local/BerkeleyDB.5.3/include -O2" LDFLAGS="-L/usr/local/BerkeleyDB.5.3/lib" --enable-upnp-default
4942018-12-20T18:35:23  <Csus> After inserting this command I get error - "configure: error: C++ compiler cannot create executables"
4952018-12-20T18:35:46  <Csus> Any ideas?
4962018-12-20T18:51:00  *** Bullit has quit IRC
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5012018-12-20T18:59:24  <wumpus> Csus: so, can your c++ compiler create executables? does g++ work?
5022018-12-20T19:00:10  <wumpus> #startmeeting
5032018-12-20T19:00:10  <lightningbot> Meeting started Thu Dec 20 19:00:10 2018 UTC.  The chair is wumpus. Information about MeetBot at http://wiki.debian.org/MeetBot.
5042018-12-20T19:00:10  <lightningbot> Useful Commands: #action #agreed #help #info #idea #link #topic.
5052018-12-20T19:00:33  <jonasschnelli> hi
5062018-12-20T19:00:34  <achow101> i thought there was no meeting?
5072018-12-20T19:00:37  <jnewbery> hi
5082018-12-20T19:00:41  <wumpus> achow101: oh?
5092018-12-20T19:01:05  <chenpo> I also thought that there is no meeting today.
5102018-12-20T19:01:17  <wumpus> short meeting then :<
5112018-12-20T19:01:23  <jonasschnelli> why?
5122018-12-20T19:01:28  <achow101> <meshcollider> Is there a meeting tomorrow or not due to Christmas?
5132018-12-20T19:01:29  <achow101> <meshcollider> Today* for some of you in incorrect timezones
5142018-12-20T19:01:29  <achow101> <sipa> meetings are cancelled for the holidays i think
5152018-12-20T19:01:38  <achow101> ^from earlier
5162018-12-20T19:02:14  <jonasschnelli> I though christmas is 24th onwards.
5172018-12-20T19:02:17  <jonasschnelli> *thought
5182018-12-20T19:02:27  <wumpus> I'm confused isn't xmas next week and on?
5192018-12-20T19:02:31  <wumpus> right-
5202018-12-20T19:02:54  <wumpus> I missed meshcollider's messages
5212018-12-20T19:03:18  <wumpus> so no meeting this week and next?
5222018-12-20T19:03:37  <achow101> i guess we can still have a meeting, just missing some people
5232018-12-20T19:04:03  <wumpus> that's not really fair if people were under the impression that there would be none
5242018-12-20T19:04:39  <jonasschnelli> agree
5252018-12-20T19:04:58  <wumpus> see you at next meeting Thu 3 2019 then
5262018-12-20T19:05:02  <wumpus> #endmeeting
5272018-12-20T19:05:02  <lightningbot> Meeting ended Thu Dec 20 19:05:02 2018 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)
5282018-12-20T19:05:02  <lightningbot> Minutes:        http://www.erisian.com.au/meetbot/bitcoin-core-dev/2018/bitcoin-core-dev.2018-12-20-19.00.html
5292018-12-20T19:05:02  <lightningbot> Minutes (text): http://www.erisian.com.au/meetbot/bitcoin-core-dev/2018/bitcoin-core-dev.2018-12-20-19.00.txt
5302018-12-20T19:05:02  <lightningbot> Log:            http://www.erisian.com.au/meetbot/bitcoin-core-dev/2018/bitcoin-core-dev.2018-12-20-19.00.log.html
5312018-12-20T19:05:30  <kanzure> womp womp
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5522018-12-20T20:32:03  <Csus> @wumpus Yes g++ does work..
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5642018-12-20T21:05:45  <jonasschnelli> sipa: for the CNetMessage refactoring, instead of using polymorphism (virtual base class), would you suggest having a global pointer to a instance of something we could call CNetMessageSerializer?
5652018-12-20T21:05:53  <jonasschnelli> So move all the ser/deser code there?
5662018-12-20T21:06:45  <jonasschnelli> So there could be two serialization instance (legacy p2p and BIP151 p2p) where each node would hold a shared pointer to that instance?
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5722018-12-20T21:22:27  <sipa> jonasschnelli: well each connection only needs one
5732018-12-20T21:22:51  <jonasschnelli> sipa: Yes. But a pointer to a global instance seems okay, right?
5742018-12-20T21:23:01  <sipa> and if there is no local state in the deserializer you don't need to instantiate it
5752018-12-20T21:23:13  <jonasschnelli> Yes
5762018-12-20T21:23:19  <sipa> so no pointers
5772018-12-20T21:23:39  <sipa> it depends
5782018-12-20T21:24:57  <jonasschnelli> but somewhere you need to keep record of the position you have read the message up to
5792018-12-20T21:25:13  <jonasschnelli> so CNetMessage gets do then still contain some minimal serialization state
5802018-12-20T21:25:47  <jonasschnelli> Where CNetMessage is more or less a serialisation helper
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5822018-12-20T21:26:14  <jonasschnelli> so I'm not yet entirely convinced of the split between CNetMessage and CNetMessageSerializer
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5852018-12-20T21:26:49  <sipa> i'm just saying there is no need to make each CNetMessage know what type of serialization is used
5862018-12-20T21:26:59  <sipa> it's a per node thing, not per message
5872018-12-20T21:27:12  <jonasschnelli> Yes. I agree with that
5882018-12-20T21:27:20  <sipa> it's bith a waste of memory and cpu to push it down so deep
5892018-12-20T21:27:58  <jonasschnelli> I think the initial design came from the two step BIP151 handshare where v1 protocol was required for the initial messages
5902018-12-20T21:28:00  <sipa> i also don't understand the global pointer question
5912018-12-20T21:28:05  <jonasschnelli> *handshake
5922018-12-20T21:28:23  <sipa> that still doesn't require every message to know how it was serialized
5932018-12-20T21:28:44  <sipa> either the serializer classes hold state, and you'll want one object per node
5942018-12-20T21:28:56  <sipa> or it doesn't, and there is no need fo instantiate them at all
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5962018-12-20T21:29:10  <jonasschnelli> sipa: so each node has either v1 or v2 serialization, each CNode could have a shared pointer to v1 or v2 global serializer instance
5972018-12-20T21:29:26  <jonasschnelli> but since there is no need for instantisation, I'm unsure
5982018-12-20T21:29:27  <sipa> sure, but why?
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6012018-12-20T21:30:07  <sipa> maybe all you need is a function to serialize/deserialize that takes an enum for the type of serialization
6022018-12-20T21:30:18  <jonasschnelli> i see,.. yes
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6042018-12-20T21:31:17  <sipa> but if there is a concern we may need state, sure a per-node instance sounds good
6052018-12-20T21:32:01  <jonasschnelli> I guess we don't need state on that level
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6072018-12-20T21:32:46  <sipa> i don't know
6082018-12-20T21:33:05  <sipa> it can hold partial checksum data
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6102018-12-20T21:35:43  <jonasschnelli> sipa: you mean the SHA256 or poly1305 state?
6112018-12-20T21:36:52  <sipa> yes
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6192018-12-20T21:56:30  <meshcollider> promag: 2:10 AM <gmaxwell> Whats wrong with making walletpassphrase an automatic named argument to _every_ rpc, and if the rpc can make use of the passprase, they use it... without unlocking.
6202018-12-20T21:56:39  <meshcollider> Concept ACK ^
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6252018-12-20T22:07:27  <bitcoin-git> [bitcoin] bitcoinhodler opened pull request #15012: Docs: Fix minor grammar error (master...patch-1) https://github.com/bitcoin/bitcoin/pull/15012
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