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FiatToken.cdc
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FiatToken.cdc
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import Crypto
import FungibleToken from 0x{{.FungibleToken}}
import OnChainMultiSig from 0x{{.OnChainMultiSig}}
pub contract FiatToken: FungibleToken {
// ------- FiatToken Events -------
// Admin events
pub event AdminCreated(resourceId: UInt64)
pub event AdminChanged(address: Address, resourceId: UInt64)
// Owner events
pub event OwnerCreated(resourceId: UInt64)
pub event OwnerChanged(address: Address, resourceId: UInt64)
// MasterMinter events
pub event MasterMinterCreated(resourceId: UInt64)
pub event MasterMinterChanged(address: Address, resourceId: UInt64)
// Pauser events
pub event Paused()
pub event Unpaused()
pub event PauserCreated(resourceId: UInt64)
pub event PauserChanged(address: Address, resourceId: UInt64)
// Blocklister events
pub event Blocklisted(resourceId: UInt64)
pub event Unblocklisted(resourceId: UInt64)
pub event BlocklisterCreated(resourceId: UInt64)
pub event BlocklisterChanged(address: Address, resourceId: UInt64)
// FiatToken.Vault events
pub event NewVault(resourceId: UInt64)
pub event DestroyVault(resourceId: UInt64)
pub event FiatTokenWithdrawn(amount: UFix64, from: UInt64)
pub event FiatTokenDeposited(amount: UFix64, to: UInt64)
// Minting events
pub event MinterCreated(resourceId: UInt64)
pub event MinterControllerCreated(resourceId: UInt64)
pub event Mint(minter: UInt64, amount: UFix64)
pub event Burn(minter: UInt64, amount: UFix64)
pub event MinterConfigured(controller: UInt64, minter: UInt64, allowance: UFix64)
pub event MinterRemoved(controller: UInt64, minter: UInt64)
pub event ControllerConfigured(controller: UInt64, minter: UInt64)
pub event ControllerRemoved(controller: UInt64)
// ------- FungibleToken Events -------
pub event TokensInitialized(initialSupply: UFix64)
pub event TokensWithdrawn(amount: UFix64, from: Address?)
pub event TokensDeposited(amount: UFix64, to: Address?)
// ------- FiatToken Paths -------
pub let VaultStoragePath: StoragePath
pub let VaultBalancePubPath: PublicPath
pub let VaultUUIDPubPath: PublicPath
pub let VaultReceiverPubPath: PublicPath
pub let BlocklistExecutorStoragePath: StoragePath
pub let BlocklisterStoragePath: StoragePath
pub let BlocklisterCapReceiverPubPath: PublicPath
pub let BlocklisterUUIDPubPath: PublicPath
pub let BlocklisterPubSigner: PublicPath
pub let PauseExecutorStoragePath: StoragePath
pub let PauserStoragePath: StoragePath
pub let PauserCapReceiverPubPath: PublicPath
pub let PauserUUIDPubPath: PublicPath
pub let PauserPubSigner: PublicPath
pub let AdminExecutorStoragePath: StoragePath
pub let AdminStoragePath: StoragePath
pub let AdminCapReceiverPubPath: PublicPath
pub let AdminUUIDPubPath: PublicPath
pub let AdminPubSigner: PublicPath
pub let OwnerExecutorStoragePath: StoragePath
pub let OwnerStoragePath: StoragePath
pub let OwnerCapReceiverPubPath: PublicPath
pub let OwnerUUIDPubPath: PublicPath
pub let OwnerPubSigner: PublicPath
pub let MasterMinterExecutorStoragePath: StoragePath
pub let MasterMinterStoragePath: StoragePath
pub let MasterMinterCapReceiverPubPath: PublicPath
pub let MasterMinterUUIDPubPath: PublicPath
pub let MasterMinterPubSigner: PublicPath
pub let MinterControllerStoragePath: StoragePath
pub let MinterControllerUUIDPubPath: PublicPath
pub let MinterControllerPubSigner: PublicPath
pub let MinterStoragePath: StoragePath
pub let MinterUUIDPubPath: PublicPath
// ------- FiatToken States / Variables -------
pub let name: String
pub var version: String
// Set to true if the contract is paused
pub var paused: Bool
// The token total supply
pub var totalSupply: UFix64
// Blocked resources dictionary {resourceId: Block Height}
access(contract) let blocklist: {UInt64: UInt64}
// Managed minters dictionary {MinterController: Minter}
access(contract) let managedMinters: {UInt64: UInt64}
// Minter allowance dictionary {Minter: Allowance}
access(contract) let minterAllowances: { UInt64: UFix64}
// ------- FiatToken Interfaces -------
pub resource interface ResourceId {
pub fun UUID(): UInt64
}
pub resource interface AdminCapReceiver {
pub fun setAdminCap(cap: Capability<&AdminExecutor>)
}
pub resource interface OwnerCapReceiver {
pub fun setOwnerCap(cap: Capability<&OwnerExecutor>)
}
pub resource interface MasterMinterCapReceiver {
pub fun setMasterMinterCap(cap: Capability<&MasterMinterExecutor>)
}
pub resource interface BlocklisterCapReceiver {
pub fun setBlocklistCap(cap: Capability<&BlocklistExecutor>)
}
pub resource interface PauseCapReceiver {
pub fun setPauseCap(cap: Capability<&PauseExecutor>)
}
// ------- Path linking -------
access(contract) fun linkAdminExec(_ newPrivPath: PrivatePath): Capability<&AdminExecutor> {
return self.account.link<&AdminExecutor>(newPrivPath, target: FiatToken.AdminExecutorStoragePath)
?? panic("could not create new AdminExecutor capability link")
}
access(contract) fun linkOwnerExec(_ newPrivPath: PrivatePath): Capability<&OwnerExecutor> {
return self.account.link<&OwnerExecutor>(newPrivPath, target: FiatToken.OwnerExecutorStoragePath)
?? panic("could not create new OwnerExecutor capability link")
}
access(contract) fun linkMasterMinterExec(_ newPrivPath: PrivatePath): Capability<&MasterMinterExecutor> {
return self.account.link<&MasterMinterExecutor>(newPrivPath, target: FiatToken.MasterMinterExecutorStoragePath)
?? panic("could not create new MasterMinterExecutor capability link")
}
access(contract) fun linkBlocklistExec(_ newPrivPath: PrivatePath): Capability<&FiatToken.BlocklistExecutor> {
return self.account.link<&BlocklistExecutor>(newPrivPath, target: FiatToken.BlocklistExecutorStoragePath)
?? panic("could not create new BlocklistExecutor capability link")
}
access(contract) fun linkPauserExec(_ newPrivPath: PrivatePath): Capability<&FiatToken.PauseExecutor> {
return self.account.link<&FiatToken.PauseExecutor>(newPrivPath, target: FiatToken.PauseExecutorStoragePath)
?? panic("could not create new PauseExecutor capability link")
}
// ------- Path unlinking -------
access(contract) fun unlinkPriv(_ privPath: PrivatePath) {
self.account.unlink(privPath)
}
// ------- FiatToken Resources -------
pub resource Vault:
ResourceId,
FungibleToken.Provider,
FungibleToken.Receiver,
FungibleToken.Balance {
pub var balance: UFix64
pub fun withdraw(amount: UFix64): @FungibleToken.Vault {
pre {
!FiatToken.paused: "FiatToken contract paused"
FiatToken.blocklist[self.uuid] == nil: "Vault Blocklisted"
}
self.balance = self.balance - amount
emit FiatTokenWithdrawn(amount: amount, from: self.uuid)
emit TokensWithdrawn(amount: amount, from: self.owner?.address)
return <-create Vault(balance: amount)
}
pub fun deposit(from: @FungibleToken.Vault) {
pre {
!FiatToken.paused: "FiatToken contract paused"
FiatToken.blocklist[from.uuid] == nil: "Receiving Vault Blocklisted"
FiatToken.blocklist[self.uuid] == nil: "Vault Blocklisted"
}
let vault <- from as! @FiatToken.Vault
self.balance = self.balance + vault.balance
emit FiatTokenDeposited(amount: vault.balance, to: self.uuid)
emit TokensDeposited(amount: vault.balance, to: self.owner?.address)
vault.balance = 0.0
destroy vault
}
pub fun UUID(): UInt64 {
return self.uuid
}
access(contract) fun burn() {
pre {
self.balance > 0.0: "Cannot burn USDC Vault with zero balance"
}
FiatToken.totalSupply = FiatToken.totalSupply - self.balance
self.balance = 0.0
}
destroy() {
pre {
self.balance == 0.0: "Cannot destroy USDC Vault with non-zero balance"
}
emit DestroyVault(resourceId: self.uuid)
}
init(balance: UFix64) {
self.balance = balance
}
}
pub resource AdminExecutor {
access(self) var currentCapPath: PrivatePath?
pub fun upgradeContract(name: String, code: [UInt8], version: String) {
FiatToken.upgradeContract(name: name, code: code, version: version)
}
pub fun changeAdmin(to: Address, newPath: PrivatePath) {
let newCap = FiatToken.linkAdminExec(newPath)
let receiver = getAccount(to)
.getCapability<&Admin{AdminCapReceiver}>(FiatToken.AdminCapReceiverPubPath)
.borrow() ?? panic("could not borrow AdminCapReceiver capability")
let idRef = getAccount(to)
.getCapability<&Admin{ResourceId}>(FiatToken.AdminUUIDPubPath)
.borrow() ?? panic("could not borrow Admin ResourceId capability")
receiver.setAdminCap(cap: newCap)
if self.currentCapPath != nil {
FiatToken.unlinkPriv(self.currentCapPath!)
}
self.currentCapPath = newPath
emit AdminChanged(address: to, resourceId: idRef.UUID())
}
init () {
self.currentCapPath = nil
}
}
pub resource Admin: OnChainMultiSig.PublicSigner, ResourceId, AdminCapReceiver {
access(self) let multiSigManager: @OnChainMultiSig.Manager
access(self) var adminExecutorCapability: Capability<&AdminExecutor>?
pub fun setAdminCap(cap: Capability<&AdminExecutor>) {
pre {
self.adminExecutorCapability == nil: "Capability has already been set"
cap.borrow() != nil: "Invalid capability"
}
self.adminExecutorCapability = cap
}
// ------- OnChainMultiSig.PublicSigner interfaces -------
pub fun addNewPayload(payload: @OnChainMultiSig.PayloadDetails, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addNewPayload(resourceId: self.uuid, payload: <-payload, publicKey: publicKey, sig: sig)
}
pub fun addPayloadSignature (txIndex: UInt64, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addPayloadSignature(resourceId: self.uuid, txIndex: txIndex, publicKey: publicKey, sig: sig)
}
pub fun executeTx(txIndex: UInt64): @AnyResource? {
let p <- self.multiSigManager.readyForExecution(txIndex: txIndex) ?? panic ("no ready transaction payload at given txIndex")
switch p.method {
case "configureKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
let weight = p.getArg(i: 1)! as? UFix64 ?? panic ("cannot downcast weight")
let sa = p.getArg(i: 2)! as? UInt8 ?? panic ("cannot downcast sig algo")
self.multiSigManager.configureKeys(pks: [pubKey], kws: [weight], sa: [sa])
case "removeKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
self.multiSigManager.removeKeys(pks: [pubKey])
case "removePayload":
let txIndex = p.getArg(i: 0)! as? UInt64 ?? panic ("cannot downcast txIndex")
let payloadToRemove <- self.multiSigManager.removePayload(txIndex: txIndex)
destroy(payloadToRemove)
case "upgradeContract":
let name = p.getArg(i: 0)! as? String ?? panic ("cannot downcast contract name")
let code = p.getArg(i: 1)! as? String ?? panic ("cannot downcast contract code")
let version = p.getArg(i: 2)! as? String ?? panic ("cannot downcast contract version")
let executor = self.adminExecutorCapability!.borrow() ?? panic("cannot borrow AdminExecutor capability")
executor.upgradeContract(name: name, code: code.decodeHex(), version: version)
case "changeAdmin":
let to = p.getArg(i: 0)! as? Address ?? panic("cannot downcast receiver address")
let path = p.getArg(i: 1)! as? PrivatePath ?? panic("cannot downcast new link path")
let executor = self.adminExecutorCapability!.borrow() ?? panic("cannot borrow AdminExecutor capability")
executor.changeAdmin(to: to, newPath: path)
default:
panic("Unknown transaction method")
}
destroy (p)
return nil
}
pub fun UUID(): UInt64 {
return self.uuid
}
pub fun getTxIndex(): UInt64 {
return self.multiSigManager.txIndex
}
pub fun getSignerKeys(): [String] {
return self.multiSigManager.getSignerKeys()
}
pub fun getSignerKeyAttr(publicKey: String): OnChainMultiSig.PubKeyAttr? {
return self.multiSigManager.getSignerKeyAttr(publicKey: publicKey)
}
destroy() {
destroy self.multiSigManager
}
init(pk: [String], pka: [OnChainMultiSig.PubKeyAttr]) {
self.multiSigManager <- OnChainMultiSig.createMultiSigManager(publicKeys: pk, pubKeyAttrs: pka)
self.adminExecutorCapability = nil
}
}
pub resource OwnerExecutor {
access(self) var ownerCapPath: PrivatePath?
access(self) var masterMinterCapPath: PrivatePath?
access(self) var blocklisterCapPath: PrivatePath?
access(self) var pauserCapPath: PrivatePath?
pub fun reassignOwner(to: Address, newPath: PrivatePath) {
let newCap = FiatToken.linkOwnerExec(newPath)
let receiver = getAccount(to)
.getCapability<&Owner{OwnerCapReceiver}>(FiatToken.OwnerCapReceiverPubPath)
.borrow() ?? panic("could not borrow the OwnerCapReceiver capability")
let idRef = getAccount(to)
.getCapability<&Owner{ResourceId}>(FiatToken.OwnerUUIDPubPath)
.borrow() ?? panic("could not borrow the Owner ResourceId capability")
receiver.setOwnerCap(cap: newCap)
if self.ownerCapPath != nil {
FiatToken.unlinkPriv(self.ownerCapPath!)
}
self.ownerCapPath = newPath
emit OwnerChanged(address: to, resourceId: idRef.UUID())
}
pub fun reassignMasterMinter(to: Address, newPath: PrivatePath) {
let newCap = FiatToken.linkMasterMinterExec(newPath)
let receiver = getAccount(to)
.getCapability<&MasterMinter{MasterMinterCapReceiver}>(FiatToken.MasterMinterCapReceiverPubPath)
.borrow() ?? panic("could not borrow the MasterMinterCapReceiver capability")
let idRef = getAccount(to)
.getCapability<&MasterMinter{ResourceId}>(FiatToken.MasterMinterUUIDPubPath)
.borrow() ?? panic("could not borrow the MasterMinter ResourceId capability")
receiver.setMasterMinterCap(cap: newCap)
if self.masterMinterCapPath != nil {
FiatToken.unlinkPriv(self.masterMinterCapPath!)
}
self.masterMinterCapPath = newPath
emit MasterMinterChanged(address: to, resourceId: idRef.UUID())
}
pub fun reassignBlocklister(to: Address, newPath: PrivatePath) {
let newCap = FiatToken.linkBlocklistExec(newPath)
let receiver = getAccount(to)
.getCapability<&Blocklister{BlocklisterCapReceiver}>(FiatToken.BlocklisterCapReceiverPubPath)
.borrow() ?? panic("could not borrow the BlocklisterCapReceiver capability ")
let idRef = getAccount(to)
.getCapability<&Blocklister{ResourceId}>(FiatToken.BlocklisterUUIDPubPath)
.borrow() ?? panic("could not borrow the Blocklister ResourceId capability")
receiver.setBlocklistCap(cap: newCap)
if self.blocklisterCapPath != nil {
FiatToken.unlinkPriv(self.blocklisterCapPath!)
}
self.blocklisterCapPath = newPath
emit BlocklisterChanged(address: to, resourceId: idRef.UUID())
}
pub fun reassignPauser(to: Address, newPath: PrivatePath) {
let newCap = FiatToken.linkPauserExec(newPath)
let receiver = getAccount(to)
.getCapability<&Pauser{PauseCapReceiver}>(FiatToken.PauserCapReceiverPubPath)
.borrow() ?? panic("could not borrow the PauseCapReceiver capability")
let idRef = getAccount(to)
.getCapability<&Pauser{ResourceId}>(FiatToken.PauserUUIDPubPath)
.borrow() ?? panic("could not borrow the Pauser ResourceId capability")
receiver.setPauseCap(cap: newCap)
if self.pauserCapPath != nil {
FiatToken.unlinkPriv(self.pauserCapPath!)
}
self.pauserCapPath = newPath
emit PauserChanged(address: to, resourceId: idRef.UUID())
}
init() {
self.ownerCapPath = nil
self.masterMinterCapPath = nil
self.blocklisterCapPath = nil
self.pauserCapPath = nil
}
}
pub resource Owner: OnChainMultiSig.PublicSigner, ResourceId, OwnerCapReceiver {
access(self) let multiSigManager: @OnChainMultiSig.Manager
access(self) var ownerExecutorCapability: Capability<&OwnerExecutor>?
pub fun setOwnerCap(cap: Capability<&OwnerExecutor>) {
pre {
self.ownerExecutorCapability == nil: "Capability has already been set"
cap.borrow() != nil: "Invalid capability"
}
self.ownerExecutorCapability = cap
}
// ------- OnChainMultiSig.PublicSigner interfaces -------
pub fun addNewPayload(payload: @OnChainMultiSig.PayloadDetails, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addNewPayload(resourceId: self.uuid, payload: <-payload, publicKey: publicKey, sig: sig)
}
pub fun addPayloadSignature (txIndex: UInt64, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addPayloadSignature(resourceId: self.uuid, txIndex: txIndex, publicKey: publicKey, sig: sig)
}
pub fun executeTx(txIndex: UInt64): @AnyResource? {
let p <- self.multiSigManager.readyForExecution(txIndex: txIndex) ?? panic ("no ready transaction payload at given txIndex")
switch p.method {
case "configureKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
let weight = p.getArg(i: 1)! as? UFix64 ?? panic ("cannot downcast weight")
let sa = p.getArg(i: 2)! as? UInt8 ?? panic ("cannot downcast sig algo")
self.multiSigManager.configureKeys(pks: [pubKey], kws: [weight], sa: [sa])
case "removeKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
self.multiSigManager.removeKeys(pks: [pubKey])
case "reassignOwner":
let to = p.getArg(i: 0)! as? Address ?? panic("cannot downcast receiver address")
let path = p.getArg(i: 1)! as? PrivatePath ?? panic("cannot downcast new link path")
let executor = self.ownerExecutorCapability!.borrow() ?? panic("cannot borrow OwnerExecutor capability")
executor.reassignOwner(to: to, newPath: path)
case "reassignMasterMinter":
let to = p.getArg(i: 0)! as? Address ?? panic("cannot downcast receiver address")
let path = p.getArg(i: 1)! as? PrivatePath ?? panic("cannot downcast new link path")
let executor = self.ownerExecutorCapability!.borrow() ?? panic("cannot borrow OwnerExecutor capability")
executor.reassignMasterMinter(to: to, newPath: path)
case "reassignBlocklister":
let to = p.getArg(i: 0)! as? Address ?? panic("cannot downcast receiver address")
let path = p.getArg(i: 1)! as? PrivatePath ?? panic("cannot downcast new link path")
let executor = self.ownerExecutorCapability!.borrow() ?? panic("cannot borrow OwnerExecutor capability")
executor.reassignBlocklister(to: to, newPath: path)
case "reassignPauser":
let to = p.getArg(i: 0)! as? Address ?? panic("cannot downcast receiver address")
let path = p.getArg(i: 1)! as? PrivatePath ?? panic("cannot downcast new link path")
let executor = self.ownerExecutorCapability!.borrow() ?? panic("cannot borrow OwnerExecutor capability")
executor.reassignPauser(to: to, newPath: path)
default:
panic("Unknown transaction method")
}
destroy (p)
return nil
}
pub fun UUID(): UInt64 {
return self.uuid
}
pub fun getTxIndex(): UInt64 {
return self.multiSigManager.txIndex
}
pub fun getSignerKeys(): [String] {
return self.multiSigManager.getSignerKeys()
}
pub fun getSignerKeyAttr(publicKey: String): OnChainMultiSig.PubKeyAttr? {
return self.multiSigManager.getSignerKeyAttr(publicKey: publicKey)
}
destroy() {
destroy self.multiSigManager
}
init(pk: [String], pka: [OnChainMultiSig.PubKeyAttr]) {
self.multiSigManager <- OnChainMultiSig.createMultiSigManager(publicKeys: pk, pubKeyAttrs: pka)
self.ownerExecutorCapability = nil
}
}
pub resource MasterMinterExecutor {
pub fun configureMinterController(minter: UInt64, minterController: UInt64) {
// Overwrite the minter if the MinterController is already configured (a MinterController can only control 1 minter)
FiatToken.managedMinters.insert(key: minterController, minter)
emit ControllerConfigured(controller: minterController, minter: minter)
}
pub fun removeMinterController(minterController: UInt64){
pre {
FiatToken.managedMinters.containsKey(minterController): "cannot remove unknown MinterController"
}
FiatToken.managedMinters.remove(key: minterController)
emit ControllerRemoved(controller: minterController)
}
}
pub resource MasterMinter: ResourceId, OnChainMultiSig.PublicSigner, MasterMinterCapReceiver {
access(self) let multiSigManager: @OnChainMultiSig.Manager
access(self) var masterMinterExecutorCapability: Capability<&MasterMinterExecutor>?
pub fun setMasterMinterCap(cap: Capability<&MasterMinterExecutor>) {
pre {
self.masterMinterExecutorCapability == nil: "Capability has already been set"
cap.borrow() != nil: "Invalid capability"
}
self.masterMinterExecutorCapability = cap
}
// ------- OnChainMultiSig.PublicSigner interfaces -------
pub fun addNewPayload(payload: @OnChainMultiSig.PayloadDetails, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addNewPayload(resourceId: self.uuid, payload: <-payload, publicKey: publicKey, sig: sig)
}
pub fun addPayloadSignature (txIndex: UInt64, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addPayloadSignature(resourceId: self.uuid, txIndex: txIndex, publicKey: publicKey, sig: sig)
}
pub fun executeTx(txIndex: UInt64): @AnyResource? {
let p <- self.multiSigManager.readyForExecution(txIndex: txIndex) ?? panic ("no ready transaction payload at given txIndex")
switch p.method {
case "configureKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
let weight = p.getArg(i: 1)! as? UFix64 ?? panic ("cannot downcast weight")
let sa = p.getArg(i: 2)! as? UInt8 ?? panic ("cannot downcast sig algo")
self.multiSigManager.configureKeys(pks: [pubKey], kws: [weight], sa: [sa])
case "removeKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
self.multiSigManager.removeKeys(pks: [pubKey])
case "configureMinterController":
let m = p.getArg(i: 0)! as? UInt64 ?? panic ("cannot downcast minter id")
let mc = p.getArg(i: 1)! as? UInt64 ?? panic ("cannot downcast MinterController id")
let executor = self.masterMinterExecutorCapability!.borrow() ?? panic("cannot borrow MasterMinterExecutor capability")
executor.configureMinterController(minter: m, minterController: mc)
case "removeMinterController":
let mc = p.getArg(i: 0)! as? UInt64 ?? panic ("cannot downcast MinterController id")
let executor = self.masterMinterExecutorCapability!.borrow() ?? panic("cannot borrow MasterMinterExecutor capability")
executor.removeMinterController(minterController: mc)
default:
panic("Unknown transaction method")
}
destroy (p)
return nil
}
pub fun UUID(): UInt64 {
return self.uuid
}
pub fun getTxIndex(): UInt64 {
return self.multiSigManager.txIndex
}
pub fun getSignerKeys(): [String] {
return self.multiSigManager.getSignerKeys()
}
pub fun getSignerKeyAttr(publicKey: String): OnChainMultiSig.PubKeyAttr? {
return self.multiSigManager.getSignerKeyAttr(publicKey: publicKey)
}
destroy() {
destroy self.multiSigManager
}
init(pk: [String], pka: [OnChainMultiSig.PubKeyAttr]) {
self.multiSigManager <- OnChainMultiSig.createMultiSigManager(publicKeys: pk, pubKeyAttrs: pka)
self.masterMinterExecutorCapability = nil
}
}
pub resource MinterController: ResourceId, OnChainMultiSig.PublicSigner {
access(self) let multiSigManager: @OnChainMultiSig.Manager
pub fun UUID(): UInt64 {
return self.uuid
}
pub fun configureMinterAllowance(allowance: UFix64) {
let managedMinter = FiatToken.managedMinters[self.uuid] ?? panic("MinterController does not manage any minters")
FiatToken.minterAllowances[managedMinter] = allowance
emit MinterConfigured(controller: self.uuid, minter: managedMinter, allowance: allowance)
}
pub fun increaseMinterAllowance(increment: UFix64) {
let managedMinter = FiatToken.managedMinters[self.uuid] ?? panic("MinterController does not manage any minters")
let allowance = FiatToken.minterAllowances[managedMinter] ?? 0.0
let newAllowance = allowance.saturatingAdd(increment)
self.configureMinterAllowance(allowance: newAllowance)
}
pub fun decreaseMinterAllowance(decrement: UFix64) {
let managedMinter = FiatToken.managedMinters[self.uuid] ?? panic("MinterController does not manage any minters")
let allowance = FiatToken.minterAllowances[managedMinter] ?? panic("Cannot decrease nil MinterAllowance")
let newAllowance = allowance!.saturatingSubtract(decrement)
self.configureMinterAllowance(allowance: newAllowance)
}
pub fun removeMinter() {
let managedMinter = FiatToken.managedMinters[self.uuid] ?? panic("MinterController does not manage any minters")
assert(FiatToken.minterAllowances.containsKey(managedMinter), message: "cannot remove unknown Minter")
FiatToken.minterAllowances.remove(key: managedMinter)
emit MinterRemoved(controller: self.uuid, minter: managedMinter)
}
// ------- OnChainMultiSig.PublicSigner interfaces -------
pub fun addNewPayload(payload: @OnChainMultiSig.PayloadDetails, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addNewPayload(resourceId: self.uuid, payload: <-payload, publicKey: publicKey, sig: sig)
}
pub fun addPayloadSignature (txIndex: UInt64, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addPayloadSignature(resourceId: self.uuid, txIndex: txIndex, publicKey: publicKey, sig: sig)
}
pub fun executeTx(txIndex: UInt64): @AnyResource? {
let p <- self.multiSigManager.readyForExecution(txIndex: txIndex) ?? panic ("no ready transaction payload at given txIndex")
switch p.method {
case "configureKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
let weight = p.getArg(i: 1)! as? UFix64 ?? panic ("cannot downcast weight")
let sa = p.getArg(i: 2)! as? UInt8 ?? panic ("cannot downcast sig algo")
self.multiSigManager.configureKeys(pks: [pubKey], kws: [weight], sa: [sa])
case "removeKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
self.multiSigManager.removeKeys(pks: [pubKey])
case "configureMinterAllowance":
let allowance = p.getArg(i: 0)! as? UFix64 ?? panic ("cannot downcast allowance amount")
self.configureMinterAllowance(allowance: allowance)
case "increaseMinterAllowance":
let increment = p.getArg(i: 0)! as? UFix64 ?? panic ("cannot downcast increment amount")
self.increaseMinterAllowance(increment: increment)
case "decreaseMinterAllowance":
let decrement = p.getArg(i: 0)! as? UFix64 ?? panic ("cannot downcast decrement amount")
self.decreaseMinterAllowance(decrement: decrement)
case "removeMinter":
self.removeMinter()
default:
panic("Unknown transaction method")
}
destroy (p)
return nil
}
pub fun getTxIndex(): UInt64 {
return self.multiSigManager.txIndex
}
pub fun getSignerKeys(): [String] {
return self.multiSigManager.getSignerKeys()
}
pub fun getSignerKeyAttr(publicKey: String): OnChainMultiSig.PubKeyAttr? {
return self.multiSigManager.getSignerKeyAttr(publicKey: publicKey)
}
destroy() {
destroy self.multiSigManager
}
init(pk: [String], pka: [OnChainMultiSig.PubKeyAttr]) {
self.multiSigManager <- OnChainMultiSig.createMultiSigManager(publicKeys: pk, pubKeyAttrs: pka)
}
}
pub resource Minter: ResourceId {
pub fun mint(amount: UFix64): @FungibleToken.Vault{
pre {
!FiatToken.paused: "FiatToken contract paused"
FiatToken.blocklist[self.uuid] == nil: "Minter Blocklisted"
FiatToken.minterAllowances.containsKey(self.uuid): "minter does not have allowance set"
}
let mintAllowance = FiatToken.minterAllowances[self.uuid]!
assert(mintAllowance >= amount, message: "insufficient mint allowance")
FiatToken.minterAllowances.insert(key: self.uuid, mintAllowance - amount)
let newTotalSupply = FiatToken.totalSupply + amount
FiatToken.totalSupply = newTotalSupply
emit Mint(minter: self.uuid, amount: amount)
return <-create Vault(balance: amount)
}
pub fun burn(vault: @FungibleToken.Vault) {
pre {
!FiatToken.paused: "FiatToken contract paused"
FiatToken.blocklist[self.uuid] == nil: "Minter Blocklisted"
FiatToken.minterAllowances.containsKey(self.uuid): "minter is not configured"
}
let toBurn <- vault as! @FiatToken.Vault
let amount = toBurn.balance
assert(FiatToken.totalSupply >= amount, message: "burning more than total supply")
// This function updates FiatToken.totalSupply and sets the Vault's value to 0.0
toBurn.burn()
// Destroys the now empty Vault
destroy toBurn
emit Burn(minter: self.uuid, amount: amount)
}
pub fun UUID(): UInt64 {
return self.uuid
}
}
pub resource BlocklistExecutor {
pub fun blocklist(resourceId: UInt64){
let block = getCurrentBlock()
FiatToken.blocklist.insert(key: resourceId, block.height)
emit Blocklisted(resourceId: resourceId)
}
pub fun unblocklist(resourceId: UInt64){
FiatToken.blocklist.remove(key: resourceId)
emit Unblocklisted(resourceId: resourceId)
}
}
pub resource Blocklister: ResourceId, BlocklisterCapReceiver, OnChainMultiSig.PublicSigner {
access(self) var blocklistCap: Capability<&BlocklistExecutor>?
access(self) let multiSigManager: @OnChainMultiSig.Manager
pub fun blocklist(resourceId: UInt64){
post {
FiatToken.blocklist.containsKey(resourceId): "Resource not blocklisted"
}
self.blocklistCap!.borrow()!.blocklist(resourceId: resourceId)
}
pub fun unblocklist(resourceId: UInt64){
post {
!FiatToken.blocklist.containsKey(resourceId): "Resource still on blocklist"
}
self.blocklistCap!.borrow()!.unblocklist(resourceId: resourceId)
}
pub fun setBlocklistCap(cap: Capability<&BlocklistExecutor>){
pre {
self.blocklistCap == nil: "Capability has already been set"
cap.borrow() != nil: "Invalid BlocklistCap capability"
}
self.blocklistCap = cap
}
// ------- OnChainMultiSig.PublicSigner interfaces -------
pub fun addNewPayload(payload: @OnChainMultiSig.PayloadDetails, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addNewPayload(resourceId: self.uuid, payload: <- payload, publicKey: publicKey, sig: sig)
}
pub fun addPayloadSignature (txIndex: UInt64, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addPayloadSignature(resourceId: self.uuid, txIndex: txIndex, publicKey: publicKey, sig: sig)
}
pub fun executeTx(txIndex: UInt64): @AnyResource? {
let p <- self.multiSigManager.readyForExecution(txIndex: txIndex) ?? panic ("no ready transaction payload at given txIndex")
switch p.method {
case "configureKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
let weight = p.getArg(i: 1)! as? UFix64 ?? panic ("cannot downcast weight")
let sa = p.getArg(i: 2)! as? UInt8 ?? panic ("cannot downcast sig algo")
self.multiSigManager.configureKeys(pks: [pubKey], kws: [weight], sa: [sa])
case "removeKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
self.multiSigManager.removeKeys(pks: [pubKey])
case "blocklist":
let resourceId = p.getArg(i: 0)! as? UInt64 ?? panic ("cannot downcast resourceId")
self.blocklist(resourceId: resourceId)
case "unblocklist":
let resourceId = p.getArg(i: 0)! as? UInt64 ?? panic ("cannot downcast resourceId")
self.unblocklist(resourceId: resourceId)
default:
panic("Unknown transaction method")
}
destroy(p)
return nil
}
pub fun UUID(): UInt64 {
return self.uuid
}
pub fun getTxIndex(): UInt64 {
return self.multiSigManager.txIndex
}
pub fun getSignerKeys(): [String] {
return self.multiSigManager.getSignerKeys()
}
pub fun getSignerKeyAttr(publicKey: String): OnChainMultiSig.PubKeyAttr? {
return self.multiSigManager.getSignerKeyAttr(publicKey: publicKey)
}
destroy() {
destroy self.multiSigManager
}
init(pk: [String], pka: [OnChainMultiSig.PubKeyAttr]) {
self.blocklistCap = nil
self.multiSigManager <- OnChainMultiSig.createMultiSigManager(publicKeys: pk, pubKeyAttrs: pka)
}
}
pub resource PauseExecutor {
pub fun pause() {
FiatToken.paused = true
emit Paused()
}
pub fun unpause() {
FiatToken.paused = false
emit Unpaused()
}
}
pub resource Pauser: ResourceId, PauseCapReceiver, OnChainMultiSig.PublicSigner {
access(self) var pauseCap: Capability<&PauseExecutor>?
access(self) let multiSigManager: @OnChainMultiSig.Manager
pub fun setPauseCap(cap: Capability<&PauseExecutor>) {
pre {
self.pauseCap == nil: "Capability has already been set"
cap.borrow() != nil: "Invalid PauseCap capability"
}
self.pauseCap = cap
}
pub fun pause(){
let cap = self.pauseCap!.borrow()!
cap.pause()
}
pub fun unpause(){
let cap = self.pauseCap!.borrow()!
cap.unpause()
}
// ------- OnChainMultiSig.PublicSigner interfaces -------
pub fun addNewPayload(payload: @OnChainMultiSig.PayloadDetails, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addNewPayload(resourceId: self.uuid, payload: <- payload, publicKey: publicKey, sig: sig)
}
pub fun addPayloadSignature (txIndex: UInt64, publicKey: String, sig: [UInt8]) {
self.multiSigManager.addPayloadSignature(resourceId: self.uuid, txIndex: txIndex, publicKey: publicKey, sig: sig)
}
pub fun executeTx(txIndex: UInt64): @AnyResource? {
let p <- self.multiSigManager.readyForExecution(txIndex: txIndex) ?? panic ("no ready transaction payload at given txIndex")
switch p.method {
case "configureKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
let weight = p.getArg(i: 1)! as? UFix64 ?? panic ("cannot downcast weight")
let sa = p.getArg(i: 2)! as? UInt8 ?? panic ("cannot downcast sig algo")
self.multiSigManager.configureKeys(pks: [pubKey], kws: [weight], sa: [sa])
case "removeKey":
let pubKey = p.getArg(i: 0)! as? String ?? panic ("cannot downcast public key")
self.multiSigManager.removeKeys(pks: [pubKey])
case "pause":
self.pause()
case "unpause":
self.unpause()
default:
panic("Unknown transaction method")
}
destroy(p)
return nil
}
pub fun UUID(): UInt64 {
return self.uuid
}
pub fun getTxIndex(): UInt64 {
return self.multiSigManager.txIndex
}
pub fun getSignerKeys(): [String] {
return self.multiSigManager.getSignerKeys()
}
pub fun getSignerKeyAttr(publicKey: String): OnChainMultiSig.PubKeyAttr? {
return self.multiSigManager.getSignerKeyAttr(publicKey: publicKey)
}
destroy() {
destroy self.multiSigManager
}
init(pk: [String], pka: [OnChainMultiSig.PubKeyAttr]) {
self.pauseCap = nil
self.multiSigManager <- OnChainMultiSig.createMultiSigManager(publicKeys: pk, pubKeyAttrs: pka)
}
}
// ------- FiatToken functions -------
pub fun createEmptyVault(): @Vault {
let r <-create Vault(balance: 0.0)
emit NewVault(resourceId: r.uuid)
return <-r
}
pub fun createNewAdmin(publicKeys: [String], pubKeyAttrs: [OnChainMultiSig.PubKeyAttr]): @Admin{
let admin <-create Admin(pk: publicKeys, pka: pubKeyAttrs)
emit AdminCreated(resourceId: admin.uuid)
return <- admin
}
pub fun createNewOwner(publicKeys: [String], pubKeyAttrs: [OnChainMultiSig.PubKeyAttr]): @Owner{
let owner <-create Owner(pk: publicKeys, pka: pubKeyAttrs)
emit OwnerCreated(resourceId: owner.uuid)
return <- owner
}
pub fun createNewPauser(publicKeys: [String], pubKeyAttrs: [OnChainMultiSig.PubKeyAttr]): @Pauser{
let pauser <-create Pauser(pk: publicKeys, pka: pubKeyAttrs)
emit PauserCreated(resourceId: pauser.uuid)
return <- pauser
}
pub fun createNewMasterMinter(publicKeys: [String], pubKeyAttrs: [OnChainMultiSig.PubKeyAttr]): @MasterMinter{
let masterMinter <- create MasterMinter(pk: publicKeys, pka: pubKeyAttrs)
emit MasterMinterCreated(resourceId: masterMinter.uuid)
return <- masterMinter
}
pub fun createNewMinterController(publicKeys: [String], pubKeyAttrs: [OnChainMultiSig.PubKeyAttr]): @MinterController{
let minterController <- create MinterController(pk: publicKeys, pka: pubKeyAttrs)
emit MinterControllerCreated(resourceId: minterController.uuid)
return <- minterController
}
pub fun createNewMinter(): @Minter{
let minter <- create Minter()
emit MinterCreated(resourceId: minter.uuid)
return <- minter
}
pub fun createNewBlocklister(publicKeys: [String], pubKeyAttrs: [OnChainMultiSig.PubKeyAttr]): @Blocklister{
let blocklister <-create Blocklister(pk: publicKeys, pka: pubKeyAttrs)
emit BlocklisterCreated(resourceId: blocklister.uuid)
return <-blocklister
}
pub fun getBlocklist(resourceId: UInt64): UInt64?{
return FiatToken.blocklist[resourceId]
}
pub fun getManagedMinter(resourceId: UInt64): UInt64?{
return FiatToken.managedMinters[resourceId]