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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1 @@ | ||
| .DS_store |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,203 @@ | ||
| const pedersen = window.starknet.pedersen; | ||
| const poseidonHashMany = window.starknet.poseidonHashMany; | ||
|
|
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| const AToBI = array => array.map(it => BigInt(it)); | ||
|
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| /* eslint-disable no-bitwise */ | ||
| const DATA_AVAILABILITY_MODE_BITS = 32n; | ||
| const MAX_AMOUNT_BITS = 64n; | ||
| const MAX_PRICE_PER_UNIT_BITS = 128n; | ||
| const RESOURCE_VALUE_OFFSET = MAX_AMOUNT_BITS + MAX_PRICE_PER_UNIT_BITS; | ||
| const L1_GAS_NAME = BigInt(encodeShortString("L1_GAS")); | ||
| const L2_GAS_NAME = BigInt(encodeShortString("L2_GAS")); | ||
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| const TransactionHashPrefix = Object.freeze({ | ||
| DECLARE: "0x6465636c617265", // encodeShortString('declare'), | ||
| DEPLOY: "0x6465706c6f79", // encodeShortString('deploy'), | ||
| DEPLOY_ACCOUNT: "0x6465706c6f795f6163636f756e74", // encodeShortString('deploy_account'), | ||
| INVOKE: "0x696e766f6b65", // encodeShortString('invoke'), | ||
| L1_HANDLER: "0x6c315f68616e646c6572" // encodeShortString('l1_handler'), | ||
| }); | ||
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||
| /** | ||
| * Compute pedersen hash from data | ||
| * @returns format: hex-string - pedersen hash | ||
| */ | ||
| function computeHashOnElements(data) { | ||
| return [...data, data.length] | ||
| .reduce((x, y) => pedersen(BigInt(x), BigInt(y)), 0) | ||
| .toString(); | ||
| } | ||
|
|
||
| /** | ||
| * Calculate transaction pedersen hash for common properties | ||
| * | ||
| * Following implementation is based on this python [implementation #](https://github.com/starkware-libs/cairo-lang/blob/b614d1867c64f3fb2cf4a4879348cfcf87c3a5a7/src/starkware/starknet/core/os/transaction_hash/transaction_hash.py) | ||
| * @returns format: hex-string | ||
| */ | ||
| function calculateTransactionHashCommonV2( | ||
| txHashPrefix, | ||
| version, | ||
| contractAddress, | ||
| entryPointSelector, | ||
| calldata, | ||
| maxFee, | ||
| chainId, | ||
| additionalData = [] | ||
| ) { | ||
| const calldataHash = computeHashOnElements(calldata); | ||
| const dataToHash = [ | ||
| txHashPrefix, | ||
| version, | ||
| contractAddress, | ||
| entryPointSelector, | ||
| calldataHash, | ||
| maxFee, | ||
| chainId, | ||
| ...additionalData | ||
| ]; | ||
| return computeHashOnElements(dataToHash); | ||
| } | ||
|
|
||
| /** | ||
| * Calculate invoke transaction hash | ||
| * @returns format: hex-string | ||
| */ | ||
| function calculateInvokeTransactionHashV2( | ||
| contractAddress, | ||
| version, | ||
| calldata, | ||
| maxFee, | ||
| chainId, | ||
| nonce | ||
| ) { | ||
| return calculateTransactionHashCommonV2( | ||
| TransactionHashPrefix.INVOKE, | ||
| version, | ||
| contractAddress, | ||
| 0, | ||
| calldata, | ||
| maxFee, | ||
| chainId, | ||
| [nonce] | ||
| ); | ||
| } | ||
|
|
||
| function hashDAMode(nonceDAMode, feeDAMode) { | ||
| return ( | ||
| (BigInt(nonceDAMode) << DATA_AVAILABILITY_MODE_BITS) + BigInt(feeDAMode) | ||
| ); | ||
| } | ||
|
|
||
| function hashFeeField(tip, bounds) { | ||
| const L1Bound = | ||
| (L1_GAS_NAME << RESOURCE_VALUE_OFFSET) + | ||
| (BigInt(bounds.l1_gas.max_amount) << MAX_PRICE_PER_UNIT_BITS) + | ||
| BigInt(bounds.l1_gas.max_price_per_unit); | ||
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||
| const L2Bound = | ||
| (L2_GAS_NAME << RESOURCE_VALUE_OFFSET) + | ||
| (BigInt(bounds.l2_gas.max_amount) << MAX_PRICE_PER_UNIT_BITS) + | ||
| BigInt(bounds.l2_gas.max_price_per_unit); | ||
|
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| return poseidonHashMany([BigInt(tip), L1Bound, L2Bound]); | ||
| } | ||
|
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||
| function calculateTransactionHashCommonV3( | ||
| txHashPrefix, | ||
| version, | ||
| senderAddress, | ||
| chainId, | ||
| nonce, | ||
| tip, | ||
| paymasterData, | ||
| nonceDataAvailabilityMode, | ||
| feeDataAvailabilityMode, | ||
| resourceBounds, | ||
| additionalData = [] | ||
| ) { | ||
| const feeFieldHash = hashFeeField(tip, resourceBounds); | ||
| const dAModeHash = hashDAMode( | ||
| nonceDataAvailabilityMode, | ||
| feeDataAvailabilityMode | ||
| ); | ||
| const dataToHash = AToBI([ | ||
| txHashPrefix, | ||
| version, | ||
| senderAddress, | ||
| feeFieldHash, | ||
| poseidonHashMany(AToBI(paymasterData)), | ||
| chainId, | ||
| nonce, | ||
| dAModeHash, | ||
| ...AToBI(additionalData) | ||
| ]); | ||
| return toHex(poseidonHashMany(dataToHash)); | ||
| } | ||
|
|
||
| /** | ||
| * Calculate v3 invoke transaction hash | ||
| * @returns format: hex-string | ||
| */ | ||
| function calculateInvokeTransactionHashV3( | ||
| senderAddress, | ||
| version, | ||
| compiledCalldata, | ||
| chainId, | ||
| nonce, | ||
| accountDeploymentData, | ||
| nonceDataAvailabilityMode, | ||
| feeDataAvailabilityMode, | ||
| resourceBounds, | ||
| tip, | ||
| paymasterData | ||
| ) { | ||
| return calculateTransactionHashCommonV3( | ||
| TransactionHashPrefix.INVOKE, | ||
| version, | ||
| senderAddress, | ||
| chainId, | ||
| nonce, | ||
| tip, | ||
| paymasterData, | ||
| nonceDataAvailabilityMode, | ||
| feeDataAvailabilityMode, | ||
| resourceBounds, | ||
| [ | ||
| poseidonHashMany(AToBI(accountDeploymentData)), | ||
| poseidonHashMany(AToBI(compiledCalldata)) | ||
| ] | ||
| ); | ||
| } | ||
|
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||
| function calculateInvokeTransactionHash(args) { | ||
| if (isV3InvokeTx(args)) { | ||
| return calculateInvokeTransactionHashV3( | ||
| args.senderAddress, | ||
| args.version, | ||
| args.compiledCalldata, | ||
| args.chainId, | ||
| args.nonce, | ||
| args.accountDeploymentData, | ||
| args.nonceDataAvailabilityMode, | ||
| args.feeDataAvailabilityMode, | ||
| args.resourceBounds, | ||
| args.tip, | ||
| args.paymasterData | ||
| ); | ||
| } | ||
| return calculateInvokeTransactionHashV2( | ||
| args.senderAddress, | ||
| args.version, | ||
| args.compiledCalldata, | ||
| args.maxFee, | ||
| args.chainId, | ||
| args.nonce | ||
| ); | ||
| } | ||
|
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| function isV3InvokeTx(args) { | ||
| return ["0x3", "0x100000000000000000000000000000003"].includes(args.version); | ||
| } | ||
|
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| window.calculateInvokeTransactionHash = calculateInvokeTransactionHash; |
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