Commit Graph

636 Commits

Author SHA1 Message Date
Thomas Eizinger
c2329b19a2
Tell the user more about the monero lock transaction
First, we tell the user that we are now waiting for Alice to lock
the monero. Additionally, we tell them once we received the
transfer proof which will lead directly into the
"waiting for confirmations" function.
2021-03-05 16:56:47 +11:00
Thomas Eizinger
13c4d29d40
Tell the user immediately how many confirmations we expect
Without this, the user doesn't see a message before the first
confirmation.
2021-03-05 16:56:47 +11:00
Thomas Eizinger
4883e23dd8
Tell the user for how many confirmations we are waiting
Without this, the user has no idea for how long the program is
waiting.
2021-03-05 16:56:47 +11:00
Thomas Eizinger
5d4cf40831
Fix comparison of Monero confirmations 2021-03-05 16:56:46 +11:00
rishflab
f92a8ac300 Improve CLI help comments and "type" hints
The type hints are generated from the field names. This has the
unfortunate consequence of the config field becoming file_path which
does not really make sense people working on the codebase.
2021-03-05 16:46:17 +11:00
Daniel Karzel
196557b377 Rename binary to swap 2021-03-05 16:14:21 +11:00
Daniel Karzel
f8b61e2e0e Make monero daemon host configurable 2021-03-05 16:10:45 +11:00
Daniel Karzel
f091402c7a Remove parameter duplication by introducing structs 2021-03-05 16:08:54 +11:00
Thomas Eizinger
c826a28911
Add context if we fail to compute extended private key 2021-03-05 15:49:16 +11:00
Thomas Eizinger
1aa6d177bf
Improve error messages when determining BTC amount to be swapped 2021-03-05 15:49:16 +11:00
Thomas Eizinger
4138039ea0
Make sure all error messages start with an uppercase letter
These might potentially be shown to a user, let's make them all
consistent.
2021-03-05 15:49:15 +11:00
Thomas Eizinger
816e8b9b96
Add more context to fallible functions inside bitcoin::Wallet 2021-03-05 15:49:15 +11:00
Thomas Eizinger
5c24a46298
Improve error message if stuff fails directly in main 2021-03-05 15:49:15 +11:00
Thomas Eizinger
37f97ac471
Shorten function name
The variable will always be at least called `wallet`, hence we can
omit the `_wallet` postfix from the function name.
2021-03-05 15:49:14 +11:00
Thomas Eizinger
4f66269887
Move error message on sync _into_ the function
The bitcoin::Wallet::sync_wallet function doesn't do anything else
other than delegating. As such, we have just as much information
about what went wrong inside this function as we have outside.

By moving the .context call into the function, we can avoid repeating
us on every call-site.
2021-03-05 15:49:14 +11:00
Thomas Eizinger
5953037b81
Don't repeat the module name within the type 2021-03-05 15:49:13 +11:00
Thomas Eizinger
87f928f56c
Move const to function where it is used 2021-03-05 15:49:13 +11:00
Thomas Eizinger
4642e6c0e3
Simplify arguments to init_XYZ_wallet functions
This makes the function calls fit onto one line.
2021-03-05 15:49:11 +11:00
Thomas Eizinger
d0db6cba10
Favour individual logs over one in main 2021-03-05 15:48:42 +11:00
bors[bot]
2041f367c6
Merge #288
288: Switch to public stagenet node that works r=rishflab a=rishflab

The xmr.to node has been unreliable lately. The exan.tech node seems to
working.

@da-kami is following up with making this configurable. Lets get this in so we can get a release on Friday.

Co-authored-by: rishflab <rishflab@hotmail.com>
2021-03-05 04:35:33 +00:00
rishflab
754159c9f8 Switch to public stagenet node that works
The xmr.to node has been unreliable lately. The exan.tech node seems to
working.
2021-03-05 15:11:32 +11:00
Thomas Eizinger
b178e95f95
Redo layout of eventloop module
1. Move internal types to the bottom and make them private
2. Sort public types by their importance
2021-03-05 14:02:24 +11:00
Thomas Eizinger
1822886cd0
Provide stronger isolation of kraken module
Instead of leaking the tokio::sync::Receiver type in our
return value, we create a newtype that implements the desired
interface. This allows us to get rid of the `RateService` structs
and instead implement `LatestRate` directly on top of this struct.

Given that `LatestRate` is only used within the event_loop module,
we move the definition of this type into there.
2021-03-05 13:56:25 +11:00
Thomas Eizinger
f6ed4d65b5
Properly deal with additional messages sent from kraken 2021-03-05 13:40:39 +11:00
Thomas Eizinger
7575d412b8
Add kraken_ticker CLI for local testing of the client 2021-03-05 13:39:42 +11:00
Thomas Eizinger
60d6d50246
Extract kraken websocket client into dedicated module 2021-03-05 13:37:51 +11:00
bors[bot]
20f2e56e2d
Merge #271
271: Bob can verify that the XMR lock tx was published r=da-kami a=da-kami

The Monero `txhash` log was removed. I feel the user should have the possibility to verify that the transaction was actually published so I added the tx-hash to the confirmation output. 

We could potentially print the tx-hash when receiving the transfer proof already, but that might not add much value compared to printing it with the confirmations. 

Additionally we should allow the user to at least know when the XMR can be expected in the user's wallet, otherwise the swap ends like this:

```
2021-03-04 13:49:19   INFO Monero lock tx received 5 out of 5 confirmations
```

This is just not very informative - yes, the final transaction is an implementation detail, but I don't think we should hide the transactions from the user. By printing the tx-hash for spending from the lock-tx into the user wallet we ensure the user knows that the XMR can now be expected in the user wallet. 

--- 

To add context, here the complete log (with debug enabled) **before** this change: 

```
2021-03-04 13:30:46  DEBUG Database and seed will be stored in /Users/dakami/Library/Application Support/xmr-btc-swap
2021-03-04 13:30:46  DEBUG Starting monero-wallet-rpc on port 56145
2021-03-04 13:30:51  DEBUG Requesting quote
2021-03-04 13:30:51   INFO Received quote: 1 XMR = 0.00433500 BTC
2021-03-04 13:30:51   INFO Still got 0.01018746 BTC left in wallet, swapping ...
2021-03-04 13:30:51   INFO Spot price for 0.00500000 BTC is 1.153402537485 XMR
2021-03-04 13:30:52  DEBUG Starting execution setup with 12D3KooWCdMKjesXMJz1SiZ7HgotrxuqhQJbP5sgBm2BwP1cqThi
2021-03-04 13:30:55   INFO Published Bitcoin 3a6690a962191529892318819fb20e7f1ac4625400e64ee734056a9b2a17ad8f transaction as lock
2021-03-04 13:41:13  DEBUG Received Transfer Proof from 12D3KooWCdMKjesXMJz1SiZ7HgotrxuqhQJbP5sgBm2BwP1cqThi
2021-03-04 13:42:11   INFO Monero lock tx received 1 out of 5 confirmations
2021-03-04 13:45:33   INFO Monero lock tx received 2 out of 5 confirmations
2021-03-04 13:47:49   INFO Monero lock tx received 3 out of 5 confirmations
2021-03-04 13:48:56   INFO Monero lock tx received 4 out of 5 confirmations
2021-03-04 13:49:19   INFO Monero lock tx received 5 out of 5 confirmations
2021-03-04 13:49:19  DEBUG Encrypted signature sent
2021-03-04 13:49:19  DEBUG Alice acknowledged encrypted signature
2021-03-04 13:49:19  DEBUG watching for tx: e5569d3f0bcccac95252dffaebe74ead0360c09b76bc762de890aaa0e51afbcf
2021-03-04 13:49:20  DEBUG Received protocol error "missing transaction" from Electrum, retrying...
2021-03-04 13:49:22  DEBUG Received protocol error "missing transaction" from Electrum, retrying...
```



Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-03-04 06:24:59 +00:00
Daniel Karzel
47a31760c0 Bob can verify the Monero txs by tx-hash
Print tx-hashes for monero transactions to allow Bob to look the transaction up in block explorer.

The story of Bab:
Our famous actor Bob has a brother named Bab.
In school they were often mixed up, because their names were so similar.
Eventually Bab renamed himself into Barbara, but that was even more confusing for now he
carried a female name even though he was not female. Bob wanted to help his brother and told him he
could just go for Bub. But that did not solve anything. Fun fact: Bub is actually married to Alice.
2021-03-04 16:51:55 +11:00
Thomas Eizinger
14dcd150af
Extract determine_btc_to_swap function and test it
We also instantiate tracing in to order to quickly validate, what
the output for the different scenarios looks like.
2021-03-04 16:27:08 +11:00
Thomas Eizinger
601bf07255
Introduce quote protocol and display it to the user before they fund
Previously, the user neither knew the price nor the maximum quantity
they could trade. We now request a quote from the user and display
it to them.

Fixes #255.
2021-03-04 16:26:27 +11:00
Thomas Eizinger
3da01ea44a
Rename local variables according to new protocol name 2021-03-04 16:20:54 +11:00
Thomas Eizinger
ead5db3f45
Re-order fields to group them semantically 2021-03-04 16:20:51 +11:00
Thomas Eizinger
bc176bc4fb
Minor import optimizations 2021-03-04 14:48:28 +11:00
Thomas Eizinger
6d9b21cb47
Change imports_granularity to module
This reduces the overall amount of LoC that imports take up in our
codebase by almost 100.
It also makes merge-conflicts less likely because there is less
grouping together of imports that may lead to layout changes which
in turn can cause merge conflicts.
2021-03-04 14:48:13 +11:00
Thomas Eizinger
2c8200621d
Move pub use into pub use block 2021-03-04 14:47:47 +11:00
bors[bot]
d1363d130c
Merge #265
265: Replace quote with spot-price protocol r=thomaseizinger a=thomaseizinger

This is essentially functionally equivalent but includes some
cleanups by removing a layer of abstraction: `spot_price::Behaviour`
is now just a type-alias for a request-response behaviour.

Co-authored-by: Thomas Eizinger <thomas@eizinger.io>
2021-03-04 02:52:06 +00:00
Daniel Karzel
7504c6ceee Context for monero address parsing errors
Most of the errors are not user friendly, thus added context to tell the user the given address is incorrect.
2021-03-04 13:36:10 +11:00
Daniel Karzel
35d0e246d8 Monero address network check
Add a network check to ensure the given monero address is on the configured network.
2021-03-04 10:46:12 +11:00
bors[bot]
cba9f119b6
Merge #261
261: Sweep xmr funds from generated temp wallet r=da-kami a=da-kami

Fixes #252

Please review by commit :)
Did a few cleanups before actually doing the feature.

Please note the comment that influenced this solution: https://github.com/comit-network/xmr-btc-swap/issues/252#issuecomment-789387074



Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-03-03 06:29:37 +00:00
Daniel Karzel
2e3c2d8edf Remove Arcs in favour of references 2021-03-03 17:23:07 +11:00
Daniel Karzel
5d807e9647 Reorder: Move utility functionality to bottom 2021-03-03 17:15:37 +11:00
Daniel Karzel
862c29f1a8 Reorder: Move sweep_all after transfer 2021-03-03 17:15:37 +11:00
Daniel Karzel
5a43b3453e Reorder: Move create after open 2021-03-03 17:15:37 +11:00
Daniel Karzel
b17e6cbd94 Reorder: Move open to top 2021-03-03 17:15:37 +11:00
Daniel Karzel
d63790c2a6 Remove unnecessary monero wallet trait abstractions 2021-03-03 17:15:37 +11:00
Daniel Karzel
1041212a60 Work in review comments 2021-03-03 17:15:37 +11:00
Daniel Karzel
66c8401c95 Sweep all from generated wallet to user wallet
The default implementation for the command was removed because it does not
add additional value if we have a mandatory parameter anyway.
2021-03-03 17:15:37 +11:00
Thomas Eizinger
7042ed9441
Replace quote with spot-price protocol
This is essentially functionally equivalent but includes some
cleanups by removing a layer of abstraction: `spot_price::Behaviour`
is now just a type-alias for a request-response behaviour.
2021-03-03 17:09:38 +11:00
Daniel Karzel
9f53dab3c6 Harmonize names to make more sense
The wallet is an instance of a wallet that has a name.
When we use `CreateWalletForOutputThenReloadWallet` we actually unload the wallet.
It would be cleaner to create a new instance that does that swap, but I did not go that far.
2021-03-03 17:03:34 +11:00
Daniel Karzel
70494fcb4f Create means creating the current wallet 2021-03-03 17:03:34 +11:00
Daniel Karzel
5b798217bc Open means opening the current wallet 2021-03-03 17:03:33 +11:00
Thomas Eizinger
2440964385
Allow ASB to be configured with max BTC buy amount
This will make it easier to also configure the CLI to display an appropriate max amount the user has to deal with.
2021-03-03 16:56:34 +11:00
Thomas Eizinger
ce077a3ff5
Decouple Bob's EventLoop from the builder
Instead of instantiating the `EventLoop` within the builder, we only
pass in the necessary arguments (which is the `EventLoopHandle`) to
the Builder upon `new`.

This is work towards #255 which will require us to perform network
communication (which implies having the `EventLoop`) before starting
a swap.
2021-03-03 14:53:05 +11:00
Thomas Eizinger
54bc91581f
Don't unnecessarily create async blocks
If our expression directly evaluates to a future, we don't need to
create an async block.

This requires us to have `EventLoopRun::run` consume the instance
instead of just taking a mutable reference (otherwise we run into
lifetime issues). However, that is better anyway because `run` is
an endless loop so you never get to use the handle afterwards
anyway.
2021-03-03 14:53:05 +11:00
Thomas Eizinger
a4c25080b6
Merge network::Seed into crate::Seed
This allows us to unify the way we derive new secret key material
and simplify the usage of seed by only having a single one.
2021-03-03 14:53:01 +11:00
Thomas Eizinger
089ac0806e
Simplify constructor of Bob's EventLoop
We never customize the behaviour or transport. Might as well hide
those details in the implementation.
2021-03-03 14:08:56 +11:00
Daniel Karzel
1b167f3eb6 Cleanup swap initialization for Alice and Bob 2021-03-03 14:07:00 +11:00
bors[bot]
a8ebd4d16e
Merge #259
259: Upgrade bitcoin wallet to use BIP84 derivation scheme r=rishflab a=rishflab

Closes #258 

Co-authored-by: rishflab <rishflab@hotmail.com>
2021-03-03 01:53:16 +00:00
rishflab
a41b255dab Upgrade bitcoin wallet to use BIP84 derivation scheme
Explicitly specify the change descriptor because the behaviour when it
is not specified is unclear.
2021-03-03 12:12:10 +11:00
rishflab
bcdde021eb Add windows support to monero rpc installer 2021-03-02 15:09:12 +11:00
rishflab
27df9128be Bail if monero wallet rpc is not found in downloaded archive
Previously we were ignoring if the monero wallet rpc was not found and
unpacked from archive leading to a failure down the line when trying to
run a non-existent executable. Bail when the executable is no found in
the archive.
2021-03-02 15:09:12 +11:00
Thomas Eizinger
3ad9516188
Reduce logging when signing transactions
1. We can generalize the signing interface by passing a PSBT in
instead of the `TxLock` transaction.
2. Knowing the transaction ID of a transaction that we are about
to sign is not very useful. Instead, it is much more useful to know
what failed. Hence we add a `.context` to the call of `sign_and_finalize`.
3. In case the signing succeeds, we will immediately broadcast it
afterwards. The new broadcasting interface will tell us that we broadcasted
the "lock" transaction.
2021-03-02 12:53:40 +11:00
Thomas Eizinger
8c9b087e39
Unify logging of broadcasted transactions
We eliminate unnecessary layers of indirection for broadcasting logic
and force our callers to provide us with the `kind` of transaction
that we are publishing.

Eventually, we can replace this string with some type-system magic
we can derive the name from the actual transaction. For now, we just
require the caller to duplicate this information because it is faster
and good enough TM.
2021-03-02 12:51:22 +11:00
Thomas Eizinger
3a503bf95f
Shorten function name
This struct is a wallet. The only thing it can meaningfully broadcast
are transactions. The fact that they have to be signed for that is
implied. You cannot broadcast unsigned transactions.
2021-03-02 12:25:47 +11:00
Thomas Eizinger
45cff81ea5
Remove traits in favor of using the wallet struct directly
Abstracting over the individual bits of functionality of the wallet
does have its place, especially if one wants to keep a separation
of an abstract protocol library that other people can use with their
own wallets.

However, at the moment, the traits only cause unnecessary friction.
We can always add such abstraction layers again once we need them.
2021-03-02 12:22:23 +11:00
Thomas Eizinger
8c0df23647
Only show _log_ output if the user passes --debug
If the user doesn't pass `--debug`, we only show `INFO` logs but
without time and level to make it clearer that it is meant to be
read by the user.

Without `--debug`, the user sees:

 Still got 0.00009235 BTC left in wallet, swapping ...

With `--debug`, they see:

2021-03-01 12:21:07  DEBUG Database and seed will be stored in /home/thomas/.local/share/xmr-btc-swap
2021-03-01 12:21:07  DEBUG Starting monero-wallet-rpc on port 40779
2021-03-01 12:21:11   INFO Still got 0.00009235 BTC left in wallet, swapping ...
2021-03-01 12:21:11  DEBUG Dialing alice at 12D3KooWCdMKjesXMJz1SiZ7HgotrxuqhQJbP5sgBm2BwP1cqThi
2021-03-01 12:21:12  DEBUG Requesting quote for 0.00008795 BTC
2021-03-02 09:50:17 +11:00
Thomas Eizinger
cb4e2c041b
Rename opt to args 2021-03-02 09:50:17 +11:00
Thomas Eizinger
f4827e3fa4
Improve time formatting of log output
Previously, the time was formatted as ISO8601 timestamps which is
barely readable by humans. Activating the `chrono` feature allows
us to format with a different format string. The output now looks
like this:

2021-03-01 11:59:52  DEBUG Database and seed will be stored in /home/thomas/.local/share/xmr-btc-swap
2021-03-01 11:59:52  DEBUG Starting monero-wallet-rpc on port 40673
2021-03-01 11:59:59  DEBUG Still got 0.00009235 BTC left in wallet, swapping ...
2021-03-01 11:59:59  DEBUG Dialing alice at 12D3KooWCdMKjesXMJz1SiZ7HgotrxuqhQJbP5sgBm2BwP1cqThi
2021-03-01 11:59:59  DEBUG Requesting quote for 0.00008795 BTC

There is a double space after the time which is already fixed in
tracing-subscriber but not yet released.

See https://github.com/tokio-rs/tracing/issues/1271.
2021-03-02 09:50:16 +11:00
Thomas Eizinger
a82e82edd5
Tell the user about the monero-wallet-rpc download
Fixes #242.
2021-03-02 09:50:16 +11:00
Thomas Eizinger
06e3bccaa6
Don't print PeerId when requesting quote
Bob always just talks to one party, the PeerId is just noise.
2021-03-02 09:50:16 +11:00
Thomas Eizinger
cbef577e2d
Inform user that we are going to swap the remainder of the balance 2021-03-02 09:50:15 +11:00
Thomas Eizinger
b7c3524b4f
Abort the eventloop if the dialling fails 2021-03-02 09:50:14 +11:00
Thomas Eizinger
4e9e186462
Don't log things the user doesn't care about
The user configured neither a Bitcoin wallet backend nor the monero-wallet-rpc so let's not tell them about it.

Fixes #244.
2021-03-02 09:49:55 +11:00
Thomas Eizinger
6b74761e34
Remove tracing context
The swap_cli can only do one swap at a time, no need for the swap ID span.
2021-03-02 09:49:55 +11:00
Thomas Eizinger
3d2d447fba
Improve error message
YMMV but I think this sounds better.
2021-03-02 09:49:55 +11:00
Thomas Eizinger
bbbe5f7ae8
Demote / promote log messages to their appropriate level 2021-03-02 09:49:53 +11:00
Thomas Eizinger
7387884e6d
Move log messages to the appropriate abstraction layer
Log messages are ideally as close to the functionality they are talking about, otherwise we might end up repeating ourselves on several callsites or the log messages gets outdated if the behaviour changes.
2021-03-02 09:49:33 +11:00
Thomas Eizinger
b8df4a3145
Inline tracing configuration for swap_cli
This allows us to configure the presentation separately from the ASB.
2021-03-02 09:49:33 +11:00
Thomas Eizinger
a0e7c6ecf7
Don't Arc the AtomicU32
We never clone this type, there is no need to wrap it in an `Arc`.
2021-03-02 09:49:33 +11:00
Thomas Eizinger
40dcf0355a
Simplify Transfer::transfer return type
We never use the fee returned from this function, remove it.
2021-03-02 09:49:30 +11:00
bors[bot]
1de3fa486e
Merge #247
247: Calculate max_giveable based on spending script size r=da-kami a=thomaseizinger



Co-authored-by: Thomas Eizinger <thomas@eizinger.io>
2021-03-01 05:27:28 +00:00
Thomas Eizinger
9f0b1c5cbe
Calculate max_giveable based on spending script size 2021-03-01 15:35:45 +11:00
Daniel Karzel
8c40ee1da4 Change anyhow! to bail! in error scenarios 2021-03-01 14:24:44 +11:00
bors[bot]
7251588e79
Merge #233
233: ASB max sell amount r=thomaseizinger a=da-kami



Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-03-01 01:47:34 +00:00
bors[bot]
5ddf41721e
Merge #238
238: Bob error handling r=thomaseizinger a=da-kami



Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-03-01 01:31:24 +00:00
rishflab
975d604405 Test to ensure default alice peer id and multi addr is valid 2021-03-01 11:00:30 +11:00
rishflab
9a82b572ec Default to buy xmr using default trait 2021-03-01 10:58:04 +11:00
rishflab
d6d67f62f1 Swap cli executes BuyXmr path if subcommand is not given 2021-03-01 10:37:59 +11:00
rishflab
60de6a9219 Remove intermediate structs in cli arguments
These intermediate structs were creating unnecessary noise. The peer id
and multiaddr fields are going to be removed in the future further
reducing the need to have seperate structs for cancel, resume and
refund.
2021-03-01 10:37:59 +11:00
bors[bot]
9a32f7d405
Merge #236
236: Some wallet cleanup + watch for deposit r=thomaseizinger a=thomaseizinger



Co-authored-by: Thomas Eizinger <thomas@eizinger.io>
2021-02-28 23:26:31 +00:00
Daniel Karzel
bb1537d6f2 Error feedback for the user upon communication errors
If communication with the other party fails the program should stop and the user should see the respective error.
Communication errors are handled in the event-loop. Upon a communication error the event loop is stopped.
Since the event loop is only stopped upon error the Result returned from the event loop is Infallible.

If one of the two futures, event loop and swap,  finishes (success/failure) the other future should be stopped as well.
We use tokio::selec! to stop either future if the other stops.
2021-02-26 17:18:12 +11:00
Daniel Karzel
019d6c725a Maximum sell amount for ASB that defaults to 0.5 XMR 2021-02-26 16:48:27 +11:00
bors[bot]
bb0377c6c7
Merge #232
232: ASB only sends quote response if sufficient XMR balance r=da-kami a=da-kami



Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-02-26 05:17:48 +00:00
Daniel Karzel
e66e84085b Rename Bob's Behavior Failure to CommunicationError
Failure does not express what the error represents. It is only used for communication
errors for quote requests, receiving the XMR transfer proof and sending the encryption signature.
2021-02-26 16:02:44 +11:00
Thomas Eizinger
f472070546
Remove --send-btc in favor of swapping the available balance
If the current balance is 0, we wait until the user deposits money
to the given address. After that, we simply swap the full balance.

Not only does this simplify the interface by removing a parameter,
but it also integrates the `deposit` command into the `buy-xmr`
command.

Syncing a wallet that is backed by electrum includes transactions
that are part of the mempool when computing the balance.
As such, waiting for a deposit is a very quick action because it
allows us to build our lock transaction on top of the yet to be
confirmed deposit transactions.

This patch introduces another function to the `bitcoin::Wallet` that
relies on the currently statically encoded fee rate. To make sure
future developers don't forget to adjust both, we extract a function
that "selects" a fee rate and return the constant from there.

Fixes #196.
2021-02-26 14:36:59 +11:00
Thomas Eizinger
32cb0eb896
Rename build_tx_lock_psbt to send_to_address
Being defined on the wallet itself, a more generic name fits better
on what this function actually does.
2021-02-26 14:36:59 +11:00
Thomas Eizinger
67fe01a2ef
Remove BuildTxLockPsbt and GetNetwork traits
These traits were only used once within the `TxLock` constructor.
Looking at the rest of the codebase, we don't really seem to follow
any abstractions here where the protocol shouldn't know about the
exact types that is being passed in.

As such, these types are just noise and might as well be removed in
favor of simplicity.
2021-02-26 14:36:58 +11:00
Thomas Eizinger
6c38d66864
Remove Tx arguments from add_signatures functions
The only reason we need this argument is because we need to access
the output descriptor. We can save that one ahead of time at when
we construct the type.
2021-02-26 14:36:58 +11:00
Thomas Eizinger
0f8fbd087f
Make all fields of bitcoin::Wallet private
This reveals that the `network` field is actually unused.
2021-02-26 14:36:58 +11:00
Thomas Eizinger
1876d17ba4
Remove map_err in favor of ?
`?` maps the error automatically.
2021-02-26 14:36:57 +11:00
Thomas Eizinger
7d324d966a
Remove syncing wallet log
BDK already has a log line for the sync that we could enable if we
wanted such a log.
Additionally, _we_ are not actually syncing the wallet, bdk is so our
log line was lying. It should have said "calling bdk to sync wallet".
2021-02-26 14:36:57 +11:00
bors[bot]
93d59398af
Merge #231
231: Error only on close message when fetching the rate r=thomaseizinger a=da-kami

Ping/Pong messages disturb the rate requests quite frequently resulting in failed swap setup because there is no rate available.

As a result messages Ping, Pong and Binary are now ignored and not reported as error.


Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-02-26 02:33:13 +00:00
Daniel Karzel
1f1b3a95bc Logging for different scenarios when reading from rate stream 2021-02-26 12:44:49 +11:00
rishflab
abc9aaa327 Use default alice peer id and multiaddr if not specified in cli args 2021-02-26 11:57:07 +11:00
Daniel Karzel
cad6a1c3a7 ABS only sends quote response if sufficient XMR balance 2021-02-26 11:12:32 +11:00
rishflab
f52567155a Use default testnet config if config file path not specified 2021-02-26 09:16:22 +11:00
Daniel Karzel
fc2c08c7c9 Error only on close message when fetching the rate
Messages Ping, Pong and Binary are ignored and not reported as error.
2021-02-25 12:52:38 +11:00
rishflab
51c16f23d8
Download and run monero wallet rpc on swap cli startup
If the monero wallet rpc has not already been downloaded we download the monero cli package and extract the wallet rpc. The unneeded files are cleaned up. The monero wallet rpc is started on a random port which is provided to the swap cli.

We added a fork of tokio-tar via a git subtree because we needed a tokio-tar version that was compatible with tokio 1.0. Remove this subtree in favor of a regular cargo dependency when this PR merges: https://github.com/vorot93/tokio-tar/pull/3.
2021-02-25 11:21:41 +11:00
Daniel Karzel
0945cee459 Remove traits in favour of public functions 2021-02-25 10:34:22 +11:00
Daniel Karzel
578d23d7fc Proper encapsulation of wallet boundaries through private fields 2021-02-25 10:30:24 +11:00
Daniel Karzel
947bcb6192 ASB reloads the default wallet after generate_from_keys atomically 2021-02-25 00:34:05 +11:00
Daniel Karzel
684cbe4d0b Remember monero wallet-height for Alice's refund scenario 2021-02-25 00:34:05 +11:00
Daniel Karzel
fa04775188 Rename function explicit to cancellation to cancel
For transitioning to state4 we either go into a redeem or a cancellation scenario.
The function name state4 is misleading, because it is only used for cancellation scenarios.
2021-02-25 00:34:05 +11:00
Daniel Karzel
1404057dbe Remove misleading TODO
This TDOO is misleading, because - to our current knowledge - it is impossible for
Bob to retrieve the exact inclusion block-height of the lock transaction (send by Alice).
The wallet RPC is only capable of retrieving the inclusion block height of a transaction
through `get_payments` and `get_bulk_payments` which requires the `payment_id`.
The `payment_id` can be retrieved through `get_transfer_by_txid` which states
"Show information about a transfer to/from this address." - however the address that the
transfer goes to is not part of Bob's wallet yet! Thus, it is impossible for Bob to use
`get_transfer_by_txid` which in turn means Bob is unable to use `get_payments`.

The only possible way for Bob to know the exact inclusion block/height of the lock transaction
would be if Alice sends it over to Bob. But for that Alice would have to extract it she would have
to wait for confirmation - which she currently does not and might never do. Even if she does await
the first confirmation before sending the transfer proof the solution for retrieving the inclusion
block-height is not fleshed out on her side yet.
2021-02-25 00:34:05 +11:00
Daniel Karzel
9f1deb9fdc Wrap the Monero wallet client in a Mutex
In order to ensure that we can atomically generate_from_keys and then reload a wallet,
we have to wrap the client of the monero wallet RPC inside a mutex.
When introducing the Mutex I noticed that several inner RPC calls were leaking to the
swap crate monero wallet. As this is a violation of boundaries I introduced the traits
`GetAddress`, `WalletBlockHeight` and `Refresh`.

Note that the monero wallet could potentially know its own public view key and
public spend key. If we refactor the wallet to include this information upon wallet
creation we can also generate addresses using `monero::Address::standard`.
2021-02-25 00:33:58 +11:00
Daniel Karzel
aed8358fb7 Remove dead code 2021-02-24 14:00:17 +11:00
bors[bot]
2654879ff3
Merge #218
218: Cleanup dependencies r=thomaseizinger a=thomaseizinger

Fixes https://github.com/comit-network/xmr-btc-swap/issues/208.

Co-authored-by: Thomas Eizinger <thomas@eizinger.io>
2021-02-23 05:02:55 +00:00
bors[bot]
fb2057453a
Merge #219 #221
219: Rename variables to add to understanding the code r=da-kami a=da-kami



221: Fix/improve comment explaining TxRefund encsigning r=thomaseizinger a=rishflab



Co-authored-by: Daniel Karzel <daniel@comit.network>
Co-authored-by: rishflab <rishflab@hotmail.com>
2021-02-23 03:37:26 +00:00
Thomas Eizinger
66db8e1851
Remove unnecessary log dependency
By updating `tracing_log`, we can access the re-export. That we need
to initialize the `tracing_log` adaptor.

The usage of `log::LevelFilter` for the `init_tracing` function was
conceptually incorrect. We should be using a type from the `tracing`
library here.
2021-02-23 14:30:32 +11:00
Thomas Eizinger
03078f328c
Split monero-harness into harness and rpc
This allows us to move `monero-harness` and `bitcoin-harness` into
`[dev-dependencies]` of `swap`.
2021-02-23 14:30:20 +11:00
rishflab
8280072400 Fix/improve comment explaining TxRefund encsigning 2021-02-23 12:18:22 +11:00
Daniel Karzel
151f33ba10 Rename variables to add to understanding the code 2021-02-22 15:38:14 +11:00
bors[bot]
61a8282be1
Merge #203
203: Introduce dynamic rates r=da-kami a=D4nte



Co-authored-by: Franck Royer <franck@coblox.tech>
Co-authored-by: Thomas Eizinger <thomas@eizinger.io>
Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-02-22 04:36:49 +00:00
Daniel Karzel
b4ceee49df Change monitoring to default wallet
The automated swap backend (asb) requires Monero funds, because Alice is selling Monero.
We use a hardcoded default wallet named asb-wallet. This wallet is opened upon startup.
If the default wallet does not exist it will be created.
2021-02-22 15:00:06 +11:00
Daniel Karzel
9496dce917 Skip heartbeat messages 2021-02-22 14:51:22 +11:00
Thomas Eizinger
a8bfc1d686 Make LatestRate::Error require std::error::Error trait bound
This allows us to use .context instead of .map_err when calling
`latest_rate()`. For the static rate module, we simply fill in
`Infallible` which is actually better suited because it describes
that we are never using this error.
2021-02-22 13:27:47 +11:00
Thomas Eizinger
b47b06aa23 Import anyhow::Result across the codebase
There is no need to fully qualify this type because it is a type
alias for std::Result. We can mix and match the two as we want.
2021-02-22 13:26:56 +11:00
Franck Royer
519d1a5701 Log rate and amounts for Alice when doing execution setup 2021-02-22 13:26:27 +11:00
Franck Royer
644f4c1732 Bubble up ws error to consumer
Note that because we are using `watch` channel, only a reference to the
channel value can be returned.
Hence, using custom Error that can be cloned to be able to
pass `Result` through the channel.
2021-02-22 13:26:27 +11:00
Franck Royer
92b3df4158 Introduce dynamic rates 2021-02-22 13:24:59 +11:00
bors[bot]
a6724f29af
Merge #214
214: Rename nectar to asb (automated swap backend) r=da-kami a=da-kami



Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-02-22 00:39:19 +00:00
bors[bot]
81228c9d5b
Merge #209
209: Upgrade to bdk 0.4 r=thomaseizinger a=thomaseizinger

Effectively, this also means:

- Upgrading to rust-bitcoin 0.26
- Upgrading to miniscript 5
- Upgrading monero to 0.10
- Upgrading curve25519-dalek to 3
- Upgrading bitcoin-harness to rust-bitcoin 0.26 (https://github.com/coblox/bitcoin-harness-rs/pull/21)
- Upgrade `ecdsa_fun` to latest version
- Replace `cross_curve_dleq` with `sigma_fun` (to avoid an upgrade dance on that library)

I refrained from specifying `rev`s in the Cargo.toml because we have a lock-file anyway. This should allow us to update those dependencies easier in the future by just running `cargo update -p <dependency>`.

Co-authored-by: Thomas Eizinger <thomas@eizinger.io>
2021-02-22 00:00:06 +00:00
Daniel Karzel
fe3d6f1fef Rename nectar to asb (automated swap backend) 2021-02-22 10:24:11 +11:00
Daniel Karzel
164de3c524 Properly calculate the confirmations for Bitcoin tx
Once the transaction was included into a block it has one confirmation - before inclusion it has zero.
current-block-height - transaction-block-height = zero; but that means one confirmation.
Hence, the confirmation calculation was adapted to: Current-block-height - (transaction-block-height - 1).
2021-02-19 17:09:53 +11:00
Thomas Eizinger
2d8ede80e1
Use released version of backoff 2021-02-19 15:18:40 +11:00
Thomas Eizinger
cabf0efb8c
Only construct proof system once
The proof system is a static element and can be reused several times.
2021-02-19 15:18:39 +11:00
Thomas Eizinger
84bc2c82b7
Upgrade to bdk 4.0
To achieve this we also:

- upgrade rust-bitcoin to 0.26
- upgrade bitcoin-harness to latest version (which also depends bitcoin 0.26)
- upgrade to latest edcsa-fun
- replace cross_curve_dleq proof with sigma_fun (to avoid an upgrade dance over there)
2021-02-19 15:18:37 +11:00
bors[bot]
b3f49cf83e
Merge #200
200: Wait for refund if insufficient Monero is locked up r=da-kami a=da-kami

In a scenario where Alice does not lock up sufficient funds Bob should properly transition to refunds. At the moment the CLI just panics. 
I noticed this when Alice accidentally had a different amount set than Bob. In the future this should not happen, because Alice provides the amount for Bob. However, in case Alice is malicious Bob should still transition correctly. 

Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-02-17 05:00:39 +00:00
bors[bot]
8537b88a68
Merge #201
201: Fix ASB - Prevent the future from being stopped in production r=da-kami a=da-kami



Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-02-17 04:45:48 +00:00
Daniel Karzel
babd1d7b60
Wait for refund if insufficient Monero is locked up 2021-02-17 11:58:05 +11:00
Daniel Karzel
ebb869e6f4 Distinguish transient and permanent Electrum errors 2021-02-17 11:56:17 +11:00
Daniel Karzel
9b93cabfdf Use context instead of map_error 2021-02-17 11:09:09 +11:00
rishflab
fe362d765b Add sync wallet on nectar's startup 2021-02-17 10:56:39 +11:00
rishflab
00e2b257c4 Remove misplaced sync wallet call 2021-02-17 10:56:10 +11:00
Daniel Karzel
2ced9ddba4 Prevent future from being stopped by calling forget on handle 2021-02-16 16:31:11 +11:00
Daniel Karzel
77ec7e502f Distinguish permanent and transient error when watching tx 2021-02-16 16:26:37 +11:00
rishflab
b66bb00c77 Remove stale code 2021-02-16 15:13:45 +11:00
rishflab
bc1d2bda54 Test URL creation for default electrum HTTP API 2021-02-16 15:13:45 +11:00
rishflab
d296c22ecf Log bitcoin deposit address on startup 2021-02-16 14:57:12 +11:00
rishflab
4768c79070 Derive bitcoin private key from seed 2021-02-16 14:57:12 +11:00