71 lines
2.9 KiB
Go
71 lines
2.9 KiB
Go
package main
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import (
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"context"
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"math/big"
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"time"
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eth_crypto "github.com/celo-org/celo-blockchain/crypto"
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"github.com/go-redis/redis/v8"
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"github.com/grassrootseconomics/cic-custodial/internal/nonce"
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"github.com/grassrootseconomics/cic-custodial/internal/tasker"
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"github.com/grassrootseconomics/w3-celo-patch"
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)
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// Define common smart contrcat ABI's that can be injected into the system container.
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// Any relevant function signature that will be used by the custodial system can be defined here.
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func initAbis() map[string]*w3.Func {
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return map[string]*w3.Func{
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// Keccak hash -> 0x449a52f8
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"mintTo": w3.MustNewFunc("mintTo(address, uint256)", "bool"),
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// Keccak hash -> 0xa9059cbb
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"transfer": w3.MustNewFunc("transfer(address,uint256)", "bool"),
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// Keccak hash -> 0x23b872dd
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"transferFrom": w3.MustNewFunc("transferFrom(address, address, uint256)", "bool"),
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// Add to account index
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"add": w3.MustNewFunc("add(address)", "bool"),
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// giveTo gas refill
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"giveTo": w3.MustNewFunc("giveTo(address)", "uint256"),
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}
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}
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// Bootstrap the internal custodial system configs and system signer key.
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// This container is passed down to individual tasker and API handlers.
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func initSystemContainer(ctx context.Context, noncestore nonce.Noncestore) (*tasker.SystemContainer, error) {
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// Some custodial system defaults loaded from the config file.
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systemContainer := &tasker.SystemContainer{
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Abis: initAbis(),
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AccountIndexContract: w3.A(ko.MustString("system.account_index")),
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GasFaucetContract: w3.A(ko.MustString("system.gas_faucet")),
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GasRefillThreshold: big.NewInt(ko.MustInt64("system.gas_refill_threshold")),
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GasRefillValue: big.NewInt(ko.MustInt64("system.gas_refill_value")),
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GiftableGasValue: big.NewInt(ko.MustInt64("system.giftable_gas_value")),
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GiftableToken: w3.A(ko.MustString("system.giftable_token_address")),
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GiftableTokenValue: big.NewInt(ko.MustInt64("system.giftable_token_value")),
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LockPrefix: ko.MustString("system.lock_prefix"),
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LockTimeout: 1 * time.Second,
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PublicKey: ko.MustString("system.public_key"),
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TokenDecimals: ko.MustInt("system.token_decimals"),
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TokenTransferGasLimit: uint64(ko.MustInt64("system.token_transfer_gas_limit")),
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}
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// Check if system signer account nonce is present.
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// If not (first boot), we bootstrap it from the network.
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currentSystemNonce, err := noncestore.Peek(ctx, ko.MustString("system.public_key"))
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lo.Info("custodial: loaded (noncestore) system nonce", "nonce", currentSystemNonce)
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if err == redis.Nil {
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nonce, err := noncestore.SyncNetworkNonce(ctx, ko.MustString("system.public_key"))
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lo.Info("custodial: syncing system nonce", "nonce", nonce)
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if err != nil {
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return nil, err
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}
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}
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loadedPrivateKey, err := eth_crypto.HexToECDSA(ko.MustString("system.private_key"))
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if err != nil {
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return nil, err
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}
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systemContainer.PrivateKey = loadedPrivateKey
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return systemContainer, nil
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}
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