feat(trading-proto-upgrade): swap UTXO PoC using Storable State Machine. by artemii235 · Pull Request #1958 · GLEECBTC/komodo-defi-framework

artemii235 · 2023-09-04T06:48:02Z

#1895

What's done:

Implemented Storable State Machine abstraction with a goal to have as fewer changes to existing state machines as possible.
Implemented successful swap of UTXO to UTXO coin. Tested using dockerized komodod daemons.
Swap V2 message exchange is done using Protobuf. Fns like broadcast_swap_v2_message can (and likely should) be used for other protocols utilizing protobuf, but I preferred to keep them in lp_swap for now to not overlap with P2P upgrade PR.
Did few other minor refactorings.

Important notes:

It covers only success case now, no cancellation/refund is currently available.
It uses dummy in-memory storage, swap data is not persisted for now.
Swap status is not currently available through RPC API.
Additional work is required in terms of swap negotiation steps, required validation of messages, etc.
Seednodes should be updated to support/rebroadcast new swap protocol messages.

Test plan:

Use only test coins or very small amounts of assets with real market value!
Run two nodes (seed and light) with "use_trading_proto_v2": true in MM2.conf.
Select coins to trade, both must have "protocol": { "type": "UTXO" }.
Initiate trading using setprice and buy/sell calls.

Following messages should be logged:

05 04:28:54, mm2_main::mm2::lp_swap::maker_swap_v2:203] INFO Maker swap 36f2e374-9f79-415b-87ff- f1b1622cf7fd has successfully started

05 04:28:54, mm2_main::mm2::lp_swap::taker_swap_v2:197] INFO Taker swap 36f2e374-9f79-415b-87ff-f1b1622cf7fd has successfully started

Swap transactions info is available only via logs now, e.g.

05 04:28:57, mm2_main::mm2::lp_swap::maker_swap_v2:433] INFO Sent maker payment MYCOIN tx d5e3c9abd522eaf68e5ba699547632e27fd77985d1b3d56228b24ec7544a4dcd during swap 36f2e374-9f79-415b-87ff-f1b1622cf7fd

Swap should complete on both nodes, confirmed by log messages like

05 04:49:39, mm2_main::mm2::lp_swap::taker_swap_v2:922] INFO Swap 3d4c27a6-1fc5-486c-a340-f9b3889f119a has been completed

laruh

Great work!
Left comments to add doc coms and asked one question

mm2src/coins/coin_errors.rs

mm2src/coins/lp_coins.rs

laruh · 2023-09-05T09:15:03Z

mm2src/coins/lp_coins.rs

+pub type ValidateDexFeeResult = MmResult<(), ValidateTakerPaymentError>;
 pub type ValidateDexFeeSpendPreimageResult = MmResult<(), ValidateDexFeeSpendPreimageError>;

 pub type IguanaPrivKey = Secp256k1Secret;


doc comment

mm2src/coins/lp_coins.rs

mm2src/mm2_state_machine/src/state_machine.rs

mm2src/mm2_state_machine/src/storable_state_machine.rs

mm2src/mm2_test_helpers/src/for_tests.rs

artemii235 · 2023-09-07T09:38:36Z

@laruh I added as many doc comments as I could 🙂 Can you review the PR again, please?

…ration-2

shamardy

Huge work!
First review iteration, Will do another last review iteration before the end of the week.
For this review, only minor issues and opening some points for discussion.

mm2src/mm2_state_machine/src/storable_state_machine.rs

mm2src/mm2_main/src/lp_swap/maker_swap_v2.rs

mm2src/mm2_main/src/lp_swap/taker_swap_v2.rs

mm2src/mm2_main/src/lp_swap/maker_swap_v2.rs

mm2src/mm2_main/src/lp_swap/komodefi.swap_v2.pb.rs

dimxy · 2023-09-13T11:40:38Z

I looked over the whole swap v2 code for better understanding.
I like very much the state machine implementation based on meta programming!

Do I understand it correct that in swap v2 we eliminate step1 (taker sends dex fee) and now taker sends all amounts in his tx: dex fee, premium, trading amount as step1?
While this makes less steps for swaps but does this not create a bigger grief problem for the taker, if maker refuses to continue? Sorry if this was discussed before

artemii235 · 2023-09-14T03:24:42Z

Hey @dimxy, thanks for your feedback! 🙂

Do I understand it correct that in swap v2 we eliminate step1 (taker sends dex fee) and now taker sends all amounts in his tx: dex fee, premium, trading amount as step1?

Yes, it's correct.

While this makes less steps for swaps but does this not create a bigger grief problem for the taker, if maker refuses to continue? Sorry if this was discussed before

Yes, it does, but we are looking for ways to solve this problem or at least reduce attack surface.

shamardy

🔥

shamardy · 2023-09-20T15:16:41Z

@KomodoPlatform/qa: This comment #1958 (comment) has a test plan to test only the success case of utxo/utxo swap using the new trading protocol.

smk762 · 2023-09-21T11:11:35Z

@kivqa I've setup 3 seednodes for use in testing this PR. Add the following to your MM2.json:

    "use_trading_proto_v2": true,
    "netid": 8762,
    "seednodes": ["test.seed.c.komodo.earth", "seed15.komodo.earth", "seed16.komodo.earth"],

smk762 · 2023-09-21T12:15:58Z

Taker

21 12:12:28, mm2_main::mm2::lp_swap::taker_swap_v2:277] INFO Taker swap 816d7c93-d34c-4183-b354-0a093934a6f4 has successfully started
21 12:12:32, mm2_main::mm2::lp_swap::taker_swap_v2:466] INFO Sent combined taker payment MARTY tx 546cc5618c1560f62bc8ab6725016aa44c8e92845cea520b669eddfe7da5125d during swap 816d7c93-d34c-4183-b354-0a093934a6f4
21 12:13:07, mm2_main::mm2::lp_swap::taker_swap_v2:777] INFO Found taker payment spend MARTY tx 1f8be55222242a4b524003d2332d1fa17b0bb985c29dff9cc5f7a9a2e0aa0aa0 during swap 816d7c93-d34c-4183-b354-0a093934a6f4
21 12:13:08, mm2_main::mm2::lp_swap::taker_swap_v2:881] INFO Spent maker payment DOC tx 3455d9c083306946b9bb6b70ea127d9b98175c791e92a2c7afc2d4d40ad02459 during swap 816d7c93-d34c-4183-b354-0a093934a6f4
21 12:13:08, mm2_main::mm2::lp_swap::taker_swap_v2:1060] INFO Swap 816d7c93-d34c-4183-b354-0a093934a6f4 has been completed

Maker

21 12:12:27, mm2_main::mm2::lp_swap::maker_swap_v2:302] INFO Maker swap 816d7c93-d34c-4183-b354-0a093934a6f4 has successfully started
21 12:12:33, mm2_main::mm2::lp_swap::maker_swap_v2:573] INFO Sent maker payment DOC tx 13f6f6e9990465de598521847a422a4d7aef42377d3f9d3c4d2303d3bdfaa7c8 during swap 816d7c93-d34c-4183-b354-0a093934a6f4
21 12:12:57, mm2_main::mm2::lp_swap::maker_swap_v2:845] INFO Spent taker payment MARTY tx 1f8be55222242a4b524003d2332d1fa17b0bb985c29dff9cc5f7a9a2e0aa0aa0 during swap 816d7c93-d34c-4183-b354-0a093934a6f4
21 12:12:57, mm2_main::mm2::lp_swap::maker_swap_v2:1025] INFO Swap 816d7c93-d34c-4183-b354-0a093934a6f4 has been completed

Seednode

21 12:12:26, atomicdex_gossipsub::behaviour:649] INFO SUBSCRIPTION: Adding peer: PeerId("12D3KooWLE7LaprLmg9SjC4QdEfJhd3MyiUMfSQM1Y5NH9UrqQB9") to topic: TopicHash { hash: "swapv2/816d7c93-d34c-4183-b354-0a093934a6f4" }

shamardy · 2023-09-21T12:28:25Z

Added this PR to v1.1.0-beta since it's a WIP PR and doesn't require any changes for GUIs yet.

artemii235 and others added 24 commits September 4, 2023 13:15

StorableStateMachine WIP.

6524c38

WIP. Created mm2_state_machine crate.

0b8ff51

Storable state machine WIP.

3322f6f

Storable state machine WIP.

b4100e0

Storable state machine WIP.

454c8a3

Storable state machine WIP.

bb34df8

Storable state machine WIP.

b0cf800

Storable state machine WIP.

e8fc4d4

Fix wasm.

6988b33

MakerSwapStateMachine WIP.

7108f51

MakerSwapStateMachine WIP.

fbb8682

Refactor new proto dex fee to combined payment.

d549a1c

TakerSwapStateMachine WIP.

9587b48

test_v2_swap_utxo_utxo WIP.

f9c2867

WIP. Implementing swap v2 messages using protobuf.

8cbc813

WIP. P2P messages.

eb22f7e

WIP. Swap negotiation.

21d8db8

WIP. Swap negotiation.

47a8a20

WIP. P2P messages exchange.

cd14f50

WIP. Sending actual transactions.

6c7636d

WIP. Sending actual transactions.

5f1c8e6

Preparing to open PR.

eb282a3

Fix fmt.

5e89e62

Preparing to open PR. Fix after cherry-pick.

e41c7b3

artemii235 changed the title ~~feat(trading-proto-upgrade) swap UTXO/UTXO PoC using Storable State Machine.~~ feat(trading-proto-upgrade): swap UTXO/UTXO PoC using Storable State Machine. Sep 4, 2023

artemii235 changed the title ~~feat(trading-proto-upgrade): swap UTXO/UTXO PoC using Storable State Machine.~~ feat(trading-proto-upgrade): swap UTXO PoC using Storable State Machine. Sep 4, 2023

artemii235 added the under review label Sep 4, 2023

shamardy requested review from dimxy and shamardy September 4, 2023 08:08

shamardy added the 1.2.0-beta label Sep 4, 2023

Add more logging.

ea6ed8a

laruh suggested changes Sep 5, 2023

View reviewed changes

artemii235 added 5 commits September 6, 2023 12:27

Adding doc comments.

7a1f609

Use SIGHASH_SINGLE for taker signature to spend payment.

7ad248a

Adding doc comments.

b60ba4d

Adding doc comments.

b99fd30

Adding doc comments.

b54fea5

Merge remote-tracking branch 'origin/dev' into swap-proto-upgrade-ite…

05c2467

…ration-2

shamardy reviewed Sep 12, 2023

View reviewed changes

Review fixes.

0e2b7b2

shamardy approved these changes Sep 15, 2023

View reviewed changes

shamardy added QA labels Sep 20, 2023

smk762 requested review from cipig, kivqa and smk762 September 21, 2023 10:08

smk762 approved these changes Sep 21, 2023

View reviewed changes

shamardy added 1.1.0-beta and removed 1.2.0-beta labels Sep 21, 2023

shamardy merged commit 6370fa5 into dev Sep 21, 2023

shamardy deleted the swap-proto-upgrade-iteration-2 branch September 21, 2023 12:27

shamardy mentioned this pull request Dec 15, 2023

chore(release): v2.0.0-beta #1968

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