updates
This commit is contained in:
Alexey
parent
28c4860f54
commit
097bd13174
43
README.md
43
README.md
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@ -5,40 +5,29 @@
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2. `cp .env.example .env`
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3. Modify `.env` as needed
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## Deploy Kovan
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1. `cp .env.example deploy/kovan/.env`
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2. Modify `.env` as needed
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3. `docker-compose -p kovan up -d`
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## Run locally
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1. `npm run start`
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2. `curl -X POST -H 'content-type:application/json' --data '<PROOF>' http://127.0.0.1:8000/relay`
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2. `curl -X POST -H 'content-type:application/json' --data '<input data>' http://127.0.0.1:8000/relay`
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Relayer should return a transaction hash.
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## Running in Docker
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To run a relayer in Docker simply run this command:
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```sh
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docker run -d -e NET_ID=<...> -e RPC_URL=<...> -e PRIVATE_KEY=<...> -e ETH_MIXER_ADDRESS=<...> -e DAI_MIXER_ADDRESS=<...> peppersec/tornado-mixer-relayer
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```
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## Proof example
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## Input data example
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```json
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{
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"contract": "0xf15f151CEf196E4a2dC28De496811e435552E93e",
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"proof": {
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"proof":[
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"0x0ed9b1afc791a551f5baa2f84786963b1463ca3f7c68eb0de3b267e6cb491f05",
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"0x1335f2af3c71e442fd82f63f8f1c605ca2612b8d0fa22b4cbd1239cca839aa3d",
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"0x1abb4b71da0efa67cbc76a97ac360826b17a88f07bd89151258bf076474a4804",
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"0x000189f7f1067a768d116cd86980eae6963dd9bc6c1f8204ceacf90a94f60d81",
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"0x15b11f9f5441adeea61534105902170a409b228e159fe7428abf6e863fc05273",
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"0x0526b509ba2cda2b21b09401d70d23ea0225be4fdaa9097af842ff6783d1e0f4",
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"0x2cd9a2305827f7da64aa1a3136c11ae1d3d7b3cb69832d8c04ab39d8b9393cda",
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"0x2090cd3f9d09d66ca4e1e9bed2c72d5fa174b47599cb47e572324b1a98a3cb7a"
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"proof": "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",
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"args": [
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"0x1579d41e5290ab5bcec9a7df16705e49b5c0b869095299196c19c5e14462c9e3",
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"0x0cf7f49c5b35c48b9e1d43713e0b46a75977e3d10521e9ac1e4c3cd5e3da1c5d",
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"0x03ebd0748aa4d1457cf479cce56309641e0a98f5",
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"0xbd4369dc854c5d5b79fe25492e3a3cfcb5d02da5",
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"0x000000000000000000000000000000000000000000000000058d15e176280000",
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"0x0000000000000000000000000000000000000000000000000000000000000000"
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],
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"publicSignals":[
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"0x1e8a85160889dfb5c03a8e2a6cca18b4c476c0b486003e9ed666a33e04114658",
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"0x00bfb0befe19eac571ecaf7858e50d70273fbe2952cc8431f59399bb28665796",
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"0x00000000000000000000000003ebd0748aa4d1457cf479cce56309641e0a98f5",
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"0x0000000000000000000000000000000000000000000000000000000000000000"
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]
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}
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"contract": "0xA27E34Ad97F171846bAf21399c370c9CE6129e0D"
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}
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```
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@ -1,4 +1,19 @@
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[
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "address",
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"name": "_newOperator",
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"type": "address"
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}
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],
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"name": "changeOperator",
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"outputs": [],
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"payable": false,
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"constant": true,
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"inputs": [
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@ -20,6 +35,51 @@
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"stateMutability": "view",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "bytes",
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"name": "_proof",
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"type": "bytes"
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},
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{
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"internalType": "bytes32",
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"name": "_root",
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"type": "bytes32"
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},
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{
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"internalType": "bytes32",
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"name": "_nullifierHash",
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"type": "bytes32"
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},
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{
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"internalType": "address payable",
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"name": "_recipient",
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"type": "address"
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},
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{
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"internalType": "address payable",
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"name": "_relayer",
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"type": "address"
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},
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{
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"internalType": "uint256",
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"name": "_fee",
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"type": "uint256"
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},
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{
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"internalType": "uint256",
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"name": "_refund",
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"type": "uint256"
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}
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],
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"name": "withdraw",
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"outputs": [],
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"payable": true,
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"stateMutability": "payable",
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"type": "function"
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},
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{
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"constant": true,
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"inputs": [],
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@ -76,21 +136,6 @@
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"stateMutability": "view",
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"type": "function"
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},
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{
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"constant": true,
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"inputs": [],
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"name": "isVerifierUpdateDisabled",
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"outputs": [
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{
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"internalType": "bool",
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"name": "",
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"type": "bool"
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}
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],
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"payable": false,
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"stateMutability": "view",
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"type": "function"
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},
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{
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"constant": true,
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"inputs": [],
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@ -193,6 +238,36 @@
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"stateMutability": "view",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "address",
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"name": "_newVerifier",
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"type": "address"
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}
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],
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"name": "updateVerifier",
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"outputs": [],
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"payable": false,
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "bytes32",
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"name": "_commitment",
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"type": "bytes32"
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}
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],
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"name": "deposit",
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"outputs": [],
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"payable": true,
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"stateMutability": "payable",
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"type": "function"
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},
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{
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"constant": true,
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"inputs": [],
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@ -244,6 +319,27 @@
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"stateMutability": "view",
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"type": "function"
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},
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{
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"constant": true,
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"inputs": [
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{
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"internalType": "bytes32",
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"name": "_nullifierHash",
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"type": "bytes32"
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}
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],
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"name": "isSpent",
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"outputs": [
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{
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"internalType": "bool",
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"name": "",
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"type": "bool"
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}
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],
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"payable": false,
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"stateMutability": "view",
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"type": "function"
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},
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{
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"constant": true,
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"inputs": [
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@ -280,21 +376,6 @@
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"stateMutability": "view",
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"type": "function"
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},
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{
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"constant": true,
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"inputs": [],
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"name": "isDepositsDisabled",
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"outputs": [
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{
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"internalType": "bool",
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"name": "",
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"type": "bool"
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}
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],
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"payable": false,
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"stateMutability": "view",
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"type": "function"
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},
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{
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"constant": true,
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"inputs": [
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@ -413,140 +494,5 @@
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],
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"name": "Withdrawal",
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"type": "event"
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},
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "bytes32",
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"name": "_commitment",
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"type": "bytes32"
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}
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],
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"name": "deposit",
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"outputs": [],
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"payable": true,
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"stateMutability": "payable",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "bytes",
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"name": "_proof",
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"type": "bytes"
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},
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{
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"internalType": "bytes32",
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"name": "_root",
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"type": "bytes32"
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},
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{
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"internalType": "bytes32",
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"name": "_nullifierHash",
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"type": "bytes32"
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},
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{
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"internalType": "address payable",
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"name": "_recipient",
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"type": "address"
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},
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{
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"internalType": "address payable",
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"name": "_relayer",
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"type": "address"
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},
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{
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"internalType": "uint256",
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"name": "_fee",
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"type": "uint256"
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},
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{
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"internalType": "uint256",
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"name": "_refund",
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"type": "uint256"
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}
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],
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"name": "withdraw",
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"outputs": [],
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"payable": true,
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"stateMutability": "payable",
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"type": "function"
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},
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{
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"constant": true,
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"inputs": [
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{
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"internalType": "bytes32",
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"name": "_nullifierHash",
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"type": "bytes32"
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}
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],
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"name": "isSpent",
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"outputs": [
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{
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"internalType": "bool",
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"name": "",
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"type": "bool"
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}
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],
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"payable": false,
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"stateMutability": "view",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "bool",
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"name": "_state",
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"type": "bool"
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}
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],
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"name": "toggleDeposits",
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"outputs": [],
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"payable": false,
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "address",
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"name": "_newVerifier",
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"type": "address"
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}
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],
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"name": "updateVerifier",
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"outputs": [],
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"payable": false,
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [],
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"name": "disableVerifierUpdate",
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"outputs": [],
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"payable": false,
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "address",
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"name": "_newOperator",
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"type": "address"
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}
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],
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"name": "changeOperator",
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"outputs": [],
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"payable": false,
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"stateMutability": "nonpayable",
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"type": "function"
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}
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]
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]
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82
index.js
82
index.js
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@ -1,6 +1,6 @@
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const { numberToHex, toWei, toHex, toBN, toChecksumAddress } = require('web3-utils')
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const { netId, rpcUrl, privateKey, defaultGasPrice } = require('./config')
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const { fetchGasPrice, isValidProof, fetchDAIprice, isKnownContract } = require('./utils')
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const { netId, rpcUrl, privateKey, mixers, defaultGasPrice } = require('./config')
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const { fetchGasPrice, isValidProof, isValidArgs, fetchDAIprice, isKnownContract } = require('./utils')
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const Web3 = require('web3')
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const express = require('express')
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@ -37,35 +37,41 @@ app.get('/', function (req, res) {
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})
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app.get('/status', function (req, res) {
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res.json({ relayerAddress: web3.eth.defaultAccount, gasPrices, netId, ethPriceInDai })
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res.json({ relayerAddress: web3.eth.defaultAccount, mixers, gasPrices, netId, ethPriceInDai })
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})
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app.post('/relay', async (req, resp) => {
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let { valid , reason } = isValidProof(req.body.proof)
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const { proof, args, contract } = req.body
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let { valid , reason } = isValidProof(proof)
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if (!valid) {
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console.log('Proof is invalid:', reason)
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return resp.status(400).json({ error: 'Proof format is invalid' })
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}
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let currency
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( { valid, currency } = isKnownContract(req.body.contract))
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({ valid , reason } = isValidArgs(args))
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if (!valid) {
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console.log('Contract does not exist:', req.body.contract)
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console.log('Args are invalid:', reason)
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return resp.status(400).json({ error: 'Withdraw arguments are invalid' })
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}
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let currency
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( { valid, currency } = isKnownContract(contract))
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if (!valid) {
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console.log('Contract does not exist:', contract)
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return resp.status(400).json({ error: 'This relayer does not support the token' })
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}
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let { proof, publicSignals } = req.body.proof
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const args = {
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root: publicSignals[0],
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nullifierHash: publicSignals[1],
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recipient: toChecksumAddress(publicSignals[2]),
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relayer: toChecksumAddress(publicSignals[3]),
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fee: toBN(publicSignals[4]),
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refund: toBN(publicSignals[5]),
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}
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const [ root, nullifierHash, recipient, relayer, fee, refund ] = [
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args[0],
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args[1],
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toChecksumAddress(args[2]),
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toChecksumAddress(args[3]),
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toBN(args[4]),
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toBN(args[5])
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]
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|
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if (args.relayer !== web3.eth.defaultAccount) {
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console.log('This proof is for different relayer:', args.relayer)
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if (relayer !== web3.eth.defaultAccount) {
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console.log('This proof is for different relayer:', relayer)
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return resp.status(400).json({ error: 'Relayer address is invalid' })
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}
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@ -73,43 +79,56 @@ app.post('/relay', async (req, resp) => {
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let desiredFee
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switch (currency) {
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case 'eth': {
|
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if (!args.refund.isZero()) {
|
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if (!refund.isZero()) {
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return resp.status(400).json({ error: 'Cannot send refund for eth currency.' })
|
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}
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desiredFee = expense
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break
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}
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case 'dai': {
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desiredFee = expense.add(args.refund).mul(toBN(ethPriceInDai)).div(toBN(10 ** 18))
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desiredFee = expense.add(refund).mul(toBN(ethPriceInDai)).div(toBN(10 ** 18))
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break
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}
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}
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|
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if (args.fee.lt(desiredFee)) {
|
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if (fee.lt(desiredFee)) {
|
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console.log('Fee is too low')
|
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return resp.status(400).json({ error: 'Fee is too low. Try to resend.' })
|
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}
|
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|
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try {
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const mixer = new web3.eth.Contract(mixerABI, req.body.contract)
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const isSpent = await mixer.methods.isSpent(args.nullifierHash).call()
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const isSpent = await mixer.methods.isSpent(nullifierHash).call()
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if (isSpent) {
|
||||
return resp.status(400).json({ error: 'The note has been spent.' })
|
||||
}
|
||||
const isKnownRoot = await mixer.methods.isKnownRoot(args.root).call()
|
||||
const isKnownRoot = await mixer.methods.isKnownRoot(root).call()
|
||||
if (!isKnownRoot) {
|
||||
return resp.status(400).json({ error: 'The merkle root is too old or invalid.' })
|
||||
}
|
||||
const gas = await mixer.methods.withdraw(proof, ...publicSignals).estimateGas({ from: web3.eth.defaultAccount, value: args.refund })
|
||||
const result = mixer.methods.withdraw(proof, ...publicSignals).send({
|
||||
const withdrawArgs = [
|
||||
proof,
|
||||
root,
|
||||
nullifierHash,
|
||||
recipient,
|
||||
relayer,
|
||||
fee.toString(),
|
||||
refund.toString()
|
||||
]
|
||||
const gas = await mixer.methods.withdraw(...withdrawArgs).estimateGas({
|
||||
from: web3.eth.defaultAccount,
|
||||
value: args.refund,
|
||||
value: refund
|
||||
})
|
||||
const result = mixer.methods.withdraw(...withdrawArgs).send({
|
||||
from: web3.eth.defaultAccount,
|
||||
value: refund,
|
||||
gas: numberToHex(gas + 50000),
|
||||
gasPrice: toHex(toWei(gasPrices.fast.toString(), 'gwei')),
|
||||
// TODO: nonce
|
||||
})
|
||||
result.once('transactionHash', function(hash){
|
||||
resp.json({ txHash: hash })
|
||||
result.once('transactionHash', function(txHash){
|
||||
resp.json({ txHash })
|
||||
console.log(`A new successfuly sent tx ${txHash} for the ${recipient}`)
|
||||
}).on('error', function(e){
|
||||
console.log(e)
|
||||
return resp.status(400).json({ error: 'Proof is malformed.' })
|
||||
|
|
@ -127,3 +146,10 @@ if (Number(netId) === 1) {
|
|||
fetchDAIprice({ ethPriceInDai, web3 })
|
||||
console.log('Gas price oracle started.')
|
||||
}
|
||||
|
||||
console.log('Relayer started')
|
||||
console.log(`relayerAddress: ${web3.eth.defaultAccount}`)
|
||||
console.log(`mixers: ${JSON.stringify(mixers)}`)
|
||||
console.log(`gasPrices: ${JSON.stringify(gasPrices)}`)
|
||||
console.log(`netId: ${netId}`)
|
||||
console.log(`ethPriceInDai: ${ethPriceInDai}`)
|
||||
41
utils.js
41
utils.js
|
|
@ -42,34 +42,43 @@ async function fetchDAIprice({ ethPriceInDai, web3 }) {
|
|||
}
|
||||
}
|
||||
|
||||
function isValidProof(data) {
|
||||
function isValidProof(proof) {
|
||||
// validator expects `websnarkUtils.toSolidityInput(proof)` output
|
||||
|
||||
if (!(data.proof && data.publicSignals)) {
|
||||
return { valid: false, reason: 'One of inputs is empty. There must be proof and publicSignals' }
|
||||
if (!(proof)) {
|
||||
return { valid: false, reason: 'The proof is empty.' }
|
||||
}
|
||||
|
||||
if (!isHexStrict(data.proof) || data.proof.length !== 2 + 2 * 8 * 32) {
|
||||
if (!isHexStrict(proof) || proof.length !== 2 + 2 * 8 * 32) {
|
||||
return { valid: false, reason: 'Corrupted proof' }
|
||||
}
|
||||
|
||||
if (data.publicSignals.length !== 6) {
|
||||
return { valid: false, reason: 'Corrupted publicSignals' }
|
||||
return { valid: true }
|
||||
}
|
||||
|
||||
function isValidArgs(args) {
|
||||
|
||||
if (!(args)) {
|
||||
return { valid: false, reason: 'Args are empty' }
|
||||
}
|
||||
|
||||
for(let signal of data.publicSignals) {
|
||||
if (args.length !== 6) {
|
||||
return { valid: false, reason: 'Length of args is lower than 6' }
|
||||
}
|
||||
|
||||
for(let signal of args) {
|
||||
if (!isHexStrict(signal)) {
|
||||
return { valid: false, reason: 'Corrupted publicSignals' }
|
||||
return { valid: false, reason: `Corrupted signal ${signal}` }
|
||||
}
|
||||
}
|
||||
|
||||
if (data.publicSignals[0].length !== 66 ||
|
||||
data.publicSignals[1].length !== 66 ||
|
||||
data.publicSignals[2].length !== 42 ||
|
||||
data.publicSignals[3].length !== 42 ||
|
||||
data.publicSignals[4].length !== 66 ||
|
||||
data.publicSignals[5].length !== 66) {
|
||||
return { valid: false, reason: 'Corrupted publicSignals' }
|
||||
if (args[0].length !== 66 ||
|
||||
args[1].length !== 66 ||
|
||||
args[2].length !== 42 ||
|
||||
args[3].length !== 42 ||
|
||||
args[4].length !== 66 ||
|
||||
args[5].length !== 66) {
|
||||
return { valid: false, reason: 'The length one of the signals is incorrect' }
|
||||
}
|
||||
|
||||
return { valid: true }
|
||||
|
|
@ -88,4 +97,4 @@ function sleep(ms) {
|
|||
return new Promise(resolve => setTimeout(resolve, ms))
|
||||
}
|
||||
|
||||
module.exports = { fetchGasPrice, isValidProof, sleep, fetchDAIprice, isKnownContract }
|
||||
module.exports = { fetchGasPrice, isValidProof, isValidArgs, sleep, fetchDAIprice, isKnownContract }
|
||||
|
|
|
|||
Loading…
Reference in New Issue