Commit Graph

1390 Commits

Author SHA1 Message Date
dependabot[bot]
2c31536311
Bump url from 2.2.1 to 2.2.2
Bumps [url](https://github.com/servo/rust-url) from 2.2.1 to 2.2.2.
- [Release notes](https://github.com/servo/rust-url/releases)
- [Commits](https://github.com/servo/rust-url/compare/v2.2.1...v2.2.2)

Signed-off-by: dependabot[bot] <support@github.com>
2021-05-11 06:49:11 +00:00
bors[bot]
f03e8fa5af
Merge #474
474: Add more log details r=bonomat a=bonomat

Resolves #448 

1. The first commit adds an additional log statement of the exchange rate for each state-update. This is useful because it allows us to measure profitability easily, i.e. by knowing what was the exchange rate when the swap was started and what was it when it was finalized.
2. The second commit changes a bunch of log messages. 
3. The third commit is adds a new commandline flag to toggle json format.




Co-authored-by: Philipp Hoenisch <philipp@hoenisch.at>
Co-authored-by: Philipp Hoenisch <philipp@coblox.tech>
2021-05-11 06:31:32 +00:00
Philipp Hoenisch
26e0383e17
Apply suggestions from code review
Co-authored-by: Daniel Karzel <daniel.karzel@coblox.tech>
2021-05-11 16:06:44 +10:00
Philipp Hoenisch
fc0cceb180
Toggle json logs using commandline flag. 2021-05-11 15:28:25 +10:00
Philipp Hoenisch
316f95c65b
Always log whole causality chain for errors. 2021-05-11 15:27:53 +10:00
Philipp Hoenisch
c011e95062
Improve logging by adding details as fields instead of into the msg. 2021-05-11 15:27:53 +10:00
Philipp Hoenisch
1706b36800
Log exchange rate at each state. 2021-05-11 15:27:49 +10:00
bors[bot]
227c383d76
Merge #481
481: Min buy amount r=da-kami a=da-kami



Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-05-11 04:08:59 +00:00
bors[bot]
af2938a39a
Merge #485
485: Update assert_weight test to account for a range up to 8 bytes. r=bonomat a=bonomat

Fixes #482 

Weights fluctuate because of the length of the signatures. Valid ecdsa signatures can have 68, 69, 70, 71, or 72 bytes. Since most of our transactions have 2 signatures the weight can be up to 8 bytes less than the static weight (4 bytes per signature). 
Since it is really hard to get these short signatures (<1 in 100), I also include the transaction in the assert message which will help for debugging purposes. 

Source: https://medium.com/coinmonks/on-bitcoin-transaction-sizes-97e31bc9d816

Co-authored-by: Philipp Hoenisch <philipp@hoenisch.at>
2021-05-11 02:56:30 +00:00
Daniel Karzel
652aae9590
Introduce a minimum buy amount
Introduces a minimum buy Bitcoin amount similar to the maximum amount already present.
For the CLI the minimum amount is enforced by waiting until at least the minimum is available as max-giveable amount.
2021-05-11 12:03:02 +10:00
Daniel Karzel
6d3cf0af91
Include too low balance into Alice's error 2021-05-11 12:03:02 +10:00
Daniel Karzel
1d62f4916c
Move max_buy and ask_spread into config
Max-buy and spread is not something that one would configure on every run.
More convenient to keep this in the config.

The max-buy Bitcoin value was adapted to `0.02` which is more reasonable for mainnet.
Activated feature `serde-float` to serialize the spread (Decimal) as float instead of string.

```
...

[maker]
max_buy_btc = 0.02
ask_spread = 0.02
```
2021-05-11 12:02:57 +10:00
Philipp Hoenisch
330269a1e9
Update assert_weight test to account for a range up to 8 bytes.
Weights fluctuate because of the length of the signatures. Valid ecdsa signatures can have 68, 69, 70, 71, or 72 bytes. Since most of our transactions have 2 signatures the weight can be up to 8 bytes less than the static weight (4 bytes per signature).
2021-05-11 10:50:24 +10:00
Daniel Karzel
538b25a6dd
Only create config-directory on init success
We should only create the file if the user finished the initial setup correctly.
2021-05-11 10:32:25 +10:00
bors[bot]
d96e20a5b0
Merge #479
479: Use rust_decimal in estimate_fee function. r=bonomat a=bonomat

Follow-up PR from #466 

Co-authored-by: Philipp Hoenisch <philipp@hoenisch.at>
2021-05-10 23:00:12 +00:00
Philipp Hoenisch
b5073e3052
Use rust_decimal in estimate_fee function. 2021-05-10 10:53:43 +10:00
bors[bot]
86bcef8eba
Merge #452
452: Asb manual recovery commands r=da-kami a=da-kami

Fixes #377 

Allows us to manually finish swaps if we run into error scenarios during execution.

I opted for putting all these commands under subcommand `manual-recovery` to run them e.g. (cancel):

```
./asb manual-recovery cancel [--force] --swap-id (...)
```

I combined the `cancel` and `refund` command in the same commit, because I only adapted the e2e tests once cancel and refund were implemented (cancel alone is a bit useless anyway...).

Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-05-10 00:09:59 +00:00
Daniel Karzel
23d9637a4b
Work in review comments 2021-05-07 16:21:02 +10:00
Daniel Karzel
daa572e5bf
Move recovery commands in dedicated module
Less clutter in the folder structure.
2021-05-07 16:21:02 +10:00
Daniel Karzel
4deb96a3c5
ASB manual recovery commands
Adds `cancel`, `refund`, `punish`, `redeem` and `safely-abort` commands to the ASB that can be used to trigger the specific scenario for the swap by ID.
2021-05-07 16:19:11 +10:00
Daniel Karzel
efcd39eeef
Add info messages to each subcommand
`asb --help` :

(...)

SUBCOMMANDS:
    balance         Prints the Bitcoin and Monero balance. Requires the monero-wallet-rpc to be running.
    help            Prints this message or the help of the given subcommand(s)
    history         Prints swap-id and the state of each swap ever made.
    start           Main command to run the ASB.
    withdraw-btc    Allows withdrawing BTC from the internal Bitcoin wallet.
2021-05-07 16:12:50 +10:00
Daniel Karzel
0c616c7437
Move loading the state into the function
In the production code it is a weird indirection that we load the state and then pass in the state and the database.
In the tests we have one additional load by doing it inside the command, but loading from the db is not expensive.
2021-05-07 16:12:49 +10:00
bors[bot]
095d67f946
Merge #461
461: Add resume-only mode for the ASB r=da-kami a=da-kami

Fixes #378 

Resume-only is a maintenance mode where no swaps are accepted but unfinished swaps are resumed.
This is achieve by ignoring incoming spot-price requests (that would lead to execution setup) in the event-loop.

- [x] Refactor `spot_price`, move Alice's decision logic into dedicated `NetworkBehaviour`
- [x] Protocol (network) level tests for the `spot_price` behaviour

Co-authored-by: Daniel Karzel <daniel@comit.network>
2021-05-07 05:13:18 +00:00
Daniel Karzel
89b3d07eba
Network protocol tests for spot_price behaviour
Each test spawns swarm for Alice and Bob that only contains the spot_price behaviours and uses a memory transport.
Tests cover happy path (i.e. expected price is returned) and error scenarios.
Implementation of `TestRate` on `LatestRate` allows testing rate fetch error and quote calculation error behaviour.

Thanks to @thomaseizinger for ramping up the test framework for comit-rs in the past!
2021-05-07 15:00:29 +10:00
Daniel Karzel
03a0dc73cd
Alice's spot_price Behaviour reports back Error
Instead of handling all errors on the inside spot_price errors are bubbled up (as `SwapRequestDeclined`).
This allows us to test both Alice's and Bob's behaviour for all scenarios.
2021-05-07 15:00:29 +10:00
Daniel Karzel
5aac76598d
Decouple ASB/CLI Errors from Error sent over wire
What goes over the wire should not be coupled to the errors being printed.
For the CLI and ASB we introduce a separate error enum that is used for logging.
When sending over the wire the errors are mapped to and from the `network::spot_price::Error`.

As part of Bob-specific spot_price code was moved from the network into bob.
Clearly separation of the network API from bob/alice.
2021-05-07 15:00:29 +10:00
Daniel Karzel
52f648e1de
Alice's spot price logic into dedicated behaviour
Move Alice's spot price logic into a dedicated network behaviour that handles all the logic.
The new behaviour encapsulates the complete state necessary for spot price request decision making.
The network behaviour cannot handle asynchronous calls, thus the balance is managed inside the spot price and has to updated regularly from the outside to ensure the spot price balance check has up to date data.
At the moment the balance is updated upon an incoming quote requests.

Code that is relevant for both ASB and CLI remains in the `network::spot_price` module (e.g. `network::spot_price::Error`).
2021-05-07 15:00:29 +10:00
Daniel Karzel
ea76ae5821
Return proper error to CLI for all expected scenarios
When a CLI requests a spot price have some errors that are expected, where we can provide a proper error message for the CLI:
- Balance of ASB too low
- Buy amount sent by CLI exceeds maximum buy amount accepted by ASB
- ASB is running in maintenance mode and does not accept incoming swap requests

All of these errors returns a proper error to the CLI and prints a warning in the ASB logs.
Any other unexpected error will result in closing the channel with the CLI and printing an error in the ASB logs.
2021-05-07 14:52:51 +10:00
Daniel Karzel
f6497778ed
Add resume-only mode for the ASB
Resume-only is a maintenance mode where no swaps are accepted but unfinished swaps are resumed.
This is achieve by ignoring incoming spot-price requests (that would lead to execution setup) in the event-loop.
2021-05-07 14:52:51 +10:00
bors[bot]
08d7d587cf
Merge #466
466: Add support to dynamically chose bitcoin transaction fees.  r=bonomat a=bonomat

Resolves #443 (Bitcoin only). 

@da-kami  /@thomaseizinger: do you know how fees work in Monero? 
If not, I'll read up on it and to come up with a proper strategy. 

Monero Fees will be covered in #470

Note: 
The there is a hardcoded relative and absolute upper bound. I personally feel safer if this is hardcoded for now as it is too easy to get wrong. 
At the time of writing, this equals roughly USD $56. 
Eventually we will want to make this also configurable.


Co-authored-by: Philipp Hoenisch <philipp@hoenisch.at>
Co-authored-by: Philipp Hoenisch <philipp@coblox.tech>
2021-05-07 00:35:49 +00:00
Philipp Hoenisch
0090e3b48e
Typo 2021-05-07 10:35:22 +10:00
Philipp Hoenisch
59a55dcbdd
Remove todo for cleanup note. 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
e93eeb81a2
Added some proptests. 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
040cce1eb6
Format all the files 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
68ae47edf4
Log error message. 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
aebdb063f1
Remove TODO 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
9fb1a43f29
Rename variable. 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
cfdbacfbb5
Add comment.
The weight of our transactions can fluctuate by +-2 wu because our transactions have 2 signatures
2021-05-07 10:24:41 +10:00
Philipp Hoenisch
e69a2c9111
Apply suggestions from code review
Co-authored-by: Daniel Karzel <daniel.karzel@coblox.tech>
2021-05-07 10:24:41 +10:00
Philipp Hoenisch
dc8dd5af28
Add relative and absolute max transaction fee. 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
dc6ab0fa52
Ensure that constant weights do not go out of sync with code. 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
7fe9087bc2
Pull trait-bounds up one level for easier testing. 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
77f6f11a7f
Pass address/fees into State0 instead of passing in the wallet. 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
14c5a4f025
Add upper bound for bitcoin fees of 100,000 satoshi.
Fees are hard to compute and it is too easy to get wrong and lose a lot of money. Hence, a hardcoded maximum of 100,000 satoshi for a single transaction is in place.
2021-05-07 10:24:41 +10:00
Philipp Hoenisch
46e0449b8e
Add config/argument to swap/asb to configure bitcoin tx fees. 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
9e8b788aa9
Rename weight constants. 2021-05-07 10:24:41 +10:00
Philipp Hoenisch
ee90c228b4
Dynamically calculate fees using electrum's estimate_fee.
Electrum has an estimate-fee feature which takes as input the block you want a tx to be included.
The result is a recommendation of BTC/vbyte.
Using this recommendation and the knowledge about the size of our transactions we compute an appropriate fee.
The size of the transactions were taken from real transactions as published on bitcoin testnet.
Note: in reality these sizes might fluctuate a bit but not for much.
2021-05-07 10:24:41 +10:00
Philipp Hoenisch
38540b4de5
Dynamically chose fee for TxCancel.
Bob chooses the fee for TxCancel because he is the one that cares.
2021-05-07 10:24:41 +10:00
Philipp Hoenisch
1012e39527
Dynamically chose fee for TxRefund and TxPunish.
Alice chooses the fee for TxPunish because she is the one that cares.
Bob chooses the fee for TxRefund because he is the one that cares.

Note must be taken here because if the fee is too low (e.g. < min tx fee) then she might not be able to publish TxRedeem at all.
2021-05-07 10:24:41 +10:00
Philipp Hoenisch
d5c1b6693e
Dynamically chose fee for TxRedeem.
Alice chooses the fee for TxRedeem because she is the one that cares. Note must be taken here because if the fee is too low (e.g. < min tx fee) then she might not be able to publish TxRedeem at all.
2021-05-07 10:24:41 +10:00