tornadocash/tornado-anonymity-mining
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update reward and withdraw functions

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This commit is contained in:
Alexey 2021-02-18 18:51:29 +03:00
parent 9581d0e72d
commit c00c62cb5f
1 changed files with 31 additions and 8 deletions
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39
src/controller.js
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@ -97,8 +97,31 @@ class Controller {
return { proofs, args }
}
async reward({ account, note, publicKey, fee = 0, relayer = 0, accountCommitments = null }) {
const rate = await this.contract.methods.rates(note.instance).call()
/**
* Generates proof and args to claim AP (anonymity points) for a note
* @param {Account} account The account the AP will be added to
* @param {Note} note The target note
* @param {String} publicKey ETH public key for the Account encryption
* @param {Number} fee Fee for the relayer
* @param {String} relayer Relayer address
* @param {Number} rate How many AP is generated for the note in block time
* @param {String[]} accountCommitments An array of account commitments from miner contract
* @param {String[]} depositDataEvents An array of account commitments from miner contract
* @param {{instance: String, hash: String, block: Number, index: Number}[]} depositDataEvents An array of deposit objects from tornadoTrees contract. hash = commitment
* @param {{instance: String, hash: String, block: Number, index: Number}[]} withdrawalDataEvents An array of withdrawal objects from tornadoTrees contract. hash = nullifierHash
*/
async reward({
account,
note,
publicKey,
fee = 0,
relayer = 0,
rate = null,
accountCommitments = null,
depositDataEvents = null,
withdrawalDataEvents = null,
}) {
rate = rate || (await this.contract.methods.rates(note.instance).call())
const newAmount = account.amount.add(
toBN(rate)
@ -107,7 +130,7 @@ class Controller {
)
const newAccount = new Account({ amount: newAmount })
const depositDataEvents = await this._fetchDepositDataEvents()
depositDataEvents = depositDataEvents || (await this._fetchDepositDataEvents())
const depositLeaves = depositDataEvents.map((x) => poseidonHash([x.instance, x.hash, x.block]))
const depositTree = new MerkleTree(this.merkleTreeHeight, depositLeaves, { hashFunction: poseidonHash2 })
const depositItem = depositDataEvents.filter((x) => x.hash === toFixedHex(note.commitment))
@ -116,7 +139,7 @@ class Controller {
}
const depositPath = depositTree.path(depositItem[0].index)
const withdrawalDataEvents = await this._fetchWithdrawalDataEvents()
withdrawalDataEvents = withdrawalDataEvents || (await this._fetchWithdrawalDataEvents())
const withdrawalLeaves = withdrawalDataEvents.map((x) => poseidonHash([x.instance, x.hash, x.block]))
const withdrawalTree = new MerkleTree(this.merkleTreeHeight, withdrawalLeaves, {
hashFunction: poseidonHash2,
@ -135,7 +158,7 @@ class Controller {
pathElements: new Array(this.merkleTreeHeight).fill(0),
pathIndices: new Array(this.merkleTreeHeight).fill(0),
}
const accountIndex = accountTree.indexOf(account.commitment, (a, b) => a.eq(b))
const accountIndex = accountTree.indexOf(account.commitment, (a, b) => toBN(a).eq(toBN(b)))
const accountPath = accountIndex !== -1 ? accountTree.path(accountIndex) : zeroAccount
const accountTreeUpdate = this._updateTree(accountTree, newAccount.commitment)
@ -215,15 +238,15 @@ class Controller {
}
}
async withdraw({ account, amount, recipient, publicKey, fee = 0, relayer = 0 }) {
async withdraw({ account, amount, recipient, publicKey, fee = 0, relayer = 0, accountCommitments = null }) {
const newAmount = account.amount.sub(toBN(amount)).sub(toBN(fee))
const newAccount = new Account({ amount: newAmount })
const accountCommitments = await this._fetchAccountCommitments()
accountCommitments = accountCommitments || (await this._fetchAccountCommitments())
const accountTree = new MerkleTree(this.merkleTreeHeight, accountCommitments, {
hashFunction: poseidonHash2,
})
const accountIndex = accountTree.indexOf(account.commitment, (a, b) => a.eq(b))
const accountIndex = accountTree.indexOf(account.commitment, (a, b) => toBN(a).eq(toBN(b)))
if (accountIndex === -1) {
throw new Error('The accounts tree does not contain such account commitment')
}