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IPublicLockV10

The PublicLock Interface

Methods

DEFAULT_ADMIN_ROLE

function DEFAULT_ADMIN_ROLE() external pure returns (bytes32 role)

Returns

NameTypeDescription
rolebytes32undefined

KEY_GRANTER_ROLE

function KEY_GRANTER_ROLE() external pure returns (bytes32 role)

Returns

NameTypeDescription
rolebytes32undefined

LOCK_MANAGER_ROLE

function LOCK_MANAGER_ROLE() external pure returns (bytes32 role)

Returns

NameTypeDescription
rolebytes32undefined

addKeyGranter

function addKeyGranter(address account) external nonpayable

Parameters

NameTypeDescription
accountaddressundefined

addLockManager

function addLockManager(address account) external nonpayable

Parameters

NameTypeDescription
accountaddressundefined

approve

function approve(address to, uint256 tokenId) external nonpayable

Parameters

NameTypeDescription
toaddressundefined
tokenIduint256undefined

approveBeneficiary

function approveBeneficiary(address _spender, uint256 _amount) external nonpayable returns (bool)

An ERC-20 style approval, allowing the spender to transfer funds directly from this lock.

Parameters

NameTypeDescription
_spenderaddressaddress that can spend tokens belonging to the lock
_amountuint256amount of tokens that can be spent by the spender

Returns

NameTypeDescription
_0boolundefined

balanceOf

function balanceOf(address _owner) external view returns (uint256 balance)

Returns the number of NFTs in owner's account.

Parameters

NameTypeDescription
_owneraddressundefined

Returns

NameTypeDescription
balanceuint256undefined

beneficiary

function beneficiary() external view returns (address)

=================================================================== Auto-generated getter functions from public state variables

Returns

NameTypeDescription
_0addressundefined

burn

function burn(uint256 _tokenId) external nonpayable

Deactivate an existing keythe key will be expired and ownership records will be destroyed

Parameters

NameTypeDescription
_tokenIduint256the id of token to burn

cancelAndRefund

function cancelAndRefund(uint256 _tokenId) external nonpayable

allows the key manager to expire a given tokenId and send a refund to the keyOwner based on the amount of time remaining.

Parameters

NameTypeDescription
_tokenIduint256The id of the key to cancel.

expirationDuration

function expirationDuration() external view returns (uint256)

Returns

NameTypeDescription
_0uint256undefined

expireAndRefundFor

function expireAndRefundFor(uint256 _tokenId, uint256 _amount) external nonpayable

Invoked by a Lock manager to expire the user's key and perform a refund and cancellation of the keyThrows if called by other than a Lock managerThrows if _keyOwner does not have a valid key

Parameters

NameTypeDescription
_tokenIduint256The key id we wish to refund to
_amountuint256The amount to refund to the key-owner

extend

function extend(uint256 _value, uint256 _tokenId, address _referrer, bytes _data) external payable

Extend functionThrows if lock is disabled or key does not exist for _recipient. Throws if _recipient == address(0).

Parameters

NameTypeDescription
_valueuint256the number of tokens to pay for this purchase >= the current keyPrice - any applicable discount (_value is ignored when using ETH)
_tokenIduint256the id of the key to extend
_referreraddressaddress of the user making the referral
_databytesarbitrary data populated by the front-end which initiated the sale

freeTrialLength

function freeTrialLength() external view returns (uint256)

Returns

NameTypeDescription
_0uint256undefined

gasRefundValue

function gasRefundValue() external view returns (uint256 _gasRefundValue)

_gasRefundValue price in wei or token in smallest price unit

Returns the value/rpice to be refunded to the sender on purchase

Returns

NameTypeDescription
_gasRefundValueuint256undefined

getApproved

function getApproved(uint256 _tokenId) external view returns (address operator)

Get the approved address for a single NFT

Throws if _tokenId is not a valid NFT.

Parameters

NameTypeDescription
_tokenIduint256The NFT to find the approved address for

Returns

NameTypeDescription
operatoraddressThe approved address for this NFT, or the zero address if there is none

getCancelAndRefundValue

function getCancelAndRefundValue(address _keyOwner) external view returns (uint256 refund)

Determines how much of a refund a key owner would receive if they issued

Parameters

NameTypeDescription
_keyOwneraddressThe key owner to get the refund value for. a cancelAndRefund block.timestamp. Note that due to the time required to mine a tx, the actual refund amount will be lower than what the user reads from this call.

Returns

NameTypeDescription
refunduint256undefined

getHasValidKey

function getHasValidKey(address _user) external view returns (bool)

Checks if the user has a non-expired key.

Parameters

NameTypeDescription
_useraddressThe address of the key owner

Returns

NameTypeDescription
_0boolundefined

getRoleAdmin

function getRoleAdmin(bytes32 role) external view returns (bytes32)

Innherited from Open Zeppelin AccessControl.sol

Parameters

NameTypeDescription
rolebytes32undefined

Returns

NameTypeDescription
_0bytes32undefined

getTransferFee

function getTransferFee(uint256 _tokenId, uint256 _time) external view returns (uint256)

Determines how much of a fee would need to be paid in order to transfer to another account. This is pro-rated so the fee goes down overtime.

Throws if _tokenId does not have a valid key

Parameters

NameTypeDescription
_tokenIduint256The id of the key check the transfer fee for.
_timeuint256The amount of time to calculate the fee for.

Returns

NameTypeDescription
_0uint256The transfer fee in seconds.

grantKeys

function grantKeys(address[] _recipients, uint256[] _expirationTimestamps, address[] _keyManagers) external nonpayable

Allows a Lock manager to give a collection of users a key with no charge. Each key may be assigned a different expiration date.

Throws if called by other than a Lock manager

Parameters

NameTypeDescription
_recipientsaddress[]An array of receiving addresses
_expirationTimestampsuint256[]An array of expiration Timestamps for the keys being granted
_keyManagersaddress[]undefined

grantRole

function grantRole(bytes32 role, address account) external nonpayable

Parameters

NameTypeDescription
rolebytes32undefined
accountaddressundefined

hasRole

function hasRole(bytes32 role, address account) external view returns (bool)

Parameters

NameTypeDescription
rolebytes32undefined
accountaddressundefined

Returns

NameTypeDescription
_0boolundefined

initialize

function initialize(address _lockCreator, uint256 _expirationDuration, address _tokenAddress, uint256 _keyPrice, uint256 _maxNumberOfKeys, string _lockName) external nonpayable

Functions

Parameters

NameTypeDescription
_lockCreatoraddressundefined
_expirationDurationuint256undefined
_tokenAddressaddressundefined
_keyPriceuint256undefined
_maxNumberOfKeysuint256undefined
_lockNamestringundefined

isApprovedForAll

function isApprovedForAll(address _owner, address _operator) external view returns (bool)

Tells whether an operator is approved by a given keyManager

Parameters

NameTypeDescription
_owneraddressowner address which you want to query the approval of
_operatoraddressoperator address which you want to query the approval of

Returns

NameTypeDescription
_0boolbool whether the given operator is approved by the given owner

isKeyGranter

function isKeyGranter(address account) external view returns (bool)

Parameters

NameTypeDescription
accountaddressundefined

Returns

NameTypeDescription
_0boolundefined

isLockManager

function isLockManager(address account) external view returns (bool)

Parameters

NameTypeDescription
accountaddressundefined

Returns

NameTypeDescription
_0boolundefined

isOwner

function isOwner(address account) external nonpayable returns (bool)

Parameters

NameTypeDescription
accountaddressundefined

Returns

NameTypeDescription
_0boolundefined

isValidKey

function isValidKey(uint256 _tokenId) external view returns (bool)

Check if a certain key is validthis makes use of the onValidKeyHook if it is set

Parameters

NameTypeDescription
_tokenIduint256the id of the key to check validity

Returns

NameTypeDescription
_0boolundefined

keyExpirationTimestampFor

function keyExpirationTimestampFor(uint256 _tokenId) external view returns (uint256 timestamp)

Returns the key's ExpirationTimestamp field for a given owner.Returns 0 if the owner has never owned a key for this lock

Parameters

NameTypeDescription
_tokenIduint256the id of the key

Returns

NameTypeDescription
timestampuint256undefined

keyManagerOf

function keyManagerOf(uint256) external view returns (address)

Parameters

NameTypeDescription
_0uint256undefined

Returns

NameTypeDescription
_0addressundefined

keyPrice

function keyPrice() external view returns (uint256)

Returns

NameTypeDescription
_0uint256undefined

maxKeysPerAddress

function maxKeysPerAddress() external view returns (uint256)

Returns

NameTypeDescription
_0uint256the maximum number of key allowed for a single address

maxNumberOfKeys

function maxNumberOfKeys() external view returns (uint256)

Returns

NameTypeDescription
_0uint256undefined

mergeKeys

function mergeKeys(uint256 _tokenIdFrom, uint256 _tokenIdTo, uint256 _amount) external nonpayable

Merge existing keys

Parameters

NameTypeDescription
_tokenIdFromuint256the id of the token to substract time from
_tokenIdTouint256the id of the destination token to add time
_amountuint256the amount of time to transfer (in seconds)

migrate

function migrate(bytes _calldata) external nonpayable

Migrate data from the previous single owner => key mapping to the new data structure w multiple tokens.

when all record schemas are sucessfully upgraded, this function will update the schemaVersion variable to the latest/current lock version

Parameters

NameTypeDescription
_calldatabytesan ABI-encoded representation of the params (v10: the number of records to migrate as uint)

name

function name() external view returns (string _name)

A descriptive name for a collection of NFTs in this contract

Returns

NameTypeDescription
_namestringundefined

numberOfOwners

function numberOfOwners() external view returns (uint256)

Public function which returns the total number of unique owners (both expired and valid). This may be larger than totalSupply.

Returns

NameTypeDescription
_0uint256undefined

onKeyCancelHook

function onKeyCancelHook() external view returns (address)

Returns

NameTypeDescription
_0addressundefined

onKeyPurchaseHook

function onKeyPurchaseHook() external view returns (address)

Returns

NameTypeDescription
_0addressundefined

onTokenURIHook

function onTokenURIHook() external view returns (string)

Returns

NameTypeDescription
_0stringundefined

onValidKeyHook

function onValidKeyHook() external view returns (bool)

Returns

NameTypeDescription
_0boolundefined

owner

function owner() external view returns (address)

owner() is provided as an helper to mimick the Ownable contract ABI. The Ownable logic is used by many 3rd party services to determine contract ownership - e.g. who is allowed to edit metadata on Opensea. This logic is NOT used internally by the Unlock Protocol and is made available only as a convenience helper.

Returns

NameTypeDescription
_0addressundefined

ownerOf

function ownerOf(uint256 tokenId) external view returns (address _owner)

Returns the owner of the NFT specified by tokenId.

Parameters

NameTypeDescription
tokenIduint256undefined

Returns

NameTypeDescription
_owneraddressundefined

publicLockVersion

function publicLockVersion() external pure returns (uint16)

The version number of the current implementation on this network.

Returns

NameTypeDescription
_0uint16The current version number.

purchase

function purchase(uint256[] _values, address[] _recipients, address[] _referrers, address[] _keyManagers, bytes[] _data) external payable

when called for an existing and non-expired key, the _keyManager param will be ignored

Purchase functionSetting _value to keyPrice exactly doubles as a security feature. That way if the lock owner increases the price while my transaction is pending I can't be charged more than I expected (only applicable to ERC-20 when more than keyPrice is approved for spending).

Parameters

NameTypeDescription
_valuesuint256[]array of tokens amount to pay for this purchase >= the current keyPrice - any applicable discount (_values is ignored when using ETH)
_recipientsaddress[]array of addresses of the recipients of the purchased key
_referrersaddress[]array of addresses of the users making the referral
_keyManagersaddress[]optional array of addresses to grant managing rights to a specific address on creation
_databytes[]array of arbitrary data populated by the front-end which initiated the sale

purchasePriceFor

function purchasePriceFor(address _recipient, address _referrer, bytes _data) external view returns (uint256)

returns the minimum price paid for a purchase with these params.

this considers any discount from Unlock or the OnKeyPurchase hook.

Parameters

NameTypeDescription
_recipientaddressundefined
_referreraddressundefined
_databytesundefined

Returns

NameTypeDescription
_0uint256undefined

refundPenaltyBasisPoints

function refundPenaltyBasisPoints() external view returns (uint256)

Returns

NameTypeDescription
_0uint256undefined

renewMembershipFor

function renewMembershipFor(uint256 _tokenId, address _referrer) external nonpayable

Renew a given tokenonly works for non-free, expiring, ERC20 locks

Parameters

NameTypeDescription
_tokenIduint256the ID fo the token to renew
_referreraddressthe address of the person to be granted UDT

renounceLockManager

function renounceLockManager() external nonpayable

renounceRole

function renounceRole(bytes32 role, address account) external nonpayable

Parameters

NameTypeDescription
rolebytes32undefined
accountaddressundefined

revokeKeyGranter

function revokeKeyGranter(address _granter) external nonpayable

Parameters

NameTypeDescription
_granteraddressundefined

revokeRole

function revokeRole(bytes32 role, address account) external nonpayable

Parameters

NameTypeDescription
rolebytes32undefined
accountaddressundefined

safeTransferFrom

function safeTransferFrom(address from, address to, uint256 tokenId) external nonpayable

Transfers a specific NFT (tokenId) from one account (from) to another (to). Requirements: - from, to cannot be zero. - tokenId must be owned by from. - If the caller is not from, it must be have been allowed to move this NFT by either approve or setApprovalForAll.

Parameters

NameTypeDescription
fromaddressundefined
toaddressundefined
tokenIduint256undefined

safeTransferFrom

function safeTransferFrom(address from, address to, uint256 tokenId, bytes data) external nonpayable

Parameters

NameTypeDescription
fromaddressundefined
toaddressundefined
tokenIduint256undefined
databytesundefined

schemaVersion

function schemaVersion() external view returns (uint256)

Returns the version number of the data schema currently used by the lockif this is different from publicLockVersion, then the ability to purchase, grant or extend keys is disabled.

will return 0 if no ;igration has ever been run

Returns

NameTypeDescription
_0uint256undefined

setApprovalForAll

function setApprovalForAll(address _operator, bool _approved) external nonpayable

disabled when transfers are disabled

Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf

Parameters

NameTypeDescription
_operatoraddressoperator address to set the approval
_approvedboolrepresenting the status of the approval to be set

setBaseTokenURI

function setBaseTokenURI(string _baseTokenURI) external nonpayable

Allows a Lock manager to update the baseTokenURI for this Lock.

Throws if called by other than a Lock manager

Parameters

NameTypeDescription
_baseTokenURIstringString representing the base of the URI for this lock.

setEventHooks

function setEventHooks(address _onKeyPurchaseHook, address _onKeyCancelHook, address _onValidKeyHook, address _onTokenURIHook) external nonpayable

Allows a Lock manager to add or remove an event hook

Parameters

NameTypeDescription
_onKeyPurchaseHookaddressHook called when the purchase function is called
_onKeyCancelHookaddressHook called when the internal _cancelAndRefund function is called
_onValidKeyHookaddressundefined
_onTokenURIHookaddressundefined

setExpirationDuration

function setExpirationDuration(uint256 _newExpirationDuration) external nonpayable

A function to change the default duration of each key in the lockkeys previously bought are unaffected by this change (i.e. existing keys timestamps are not recalculated/updated)

Parameters

NameTypeDescription
_newExpirationDurationuint256the new amount of time for each key purchased or type(uint).max for a non-expiring key

setGasRefundValue

function setGasRefundValue(uint256 _gasRefundValue) external nonpayable

Set the value to be refunded to the sender on purchase

Parameters

NameTypeDescription
_gasRefundValueuint256price in wei or token in smallest price unit

setKeyManagerOf

function setKeyManagerOf(uint256 _tokenId, address _keyManager) external nonpayable

Update transfer and cancel rights for a given key

Parameters

NameTypeDescription
_tokenIduint256The id of the key to assign rights for
_keyManageraddressThe address to assign the rights to for the given key

setMaxKeysPerAddress

function setMaxKeysPerAddress(uint256 _maxKeysPerAddress) external nonpayable

Set the maximum number of keys a specific address can use

Parameters

NameTypeDescription
_maxKeysPerAddressuint256the maximum amount of key a user can own

setMaxNumberOfKeys

function setMaxNumberOfKeys(uint256 _maxNumberOfKeys) external nonpayable

Change the maximum number of keys the lock can edit

Parameters

NameTypeDescription
_maxNumberOfKeysuint256uint the maximum number of keys

setOwner

function setOwner(address account) external nonpayable

Parameters

NameTypeDescription
accountaddressundefined

shareKey

function shareKey(address _to, uint256 _tokenId, uint256 _timeShared) external nonpayable

Allows the key owner to safely share their key (parent key) by transferring a portion of the remaining time to a new key (child key).

Throws if key is not valid.Throws if _to is the zero addressEmit Transfer event

Parameters

NameTypeDescription
_toaddressThe recipient of the shared key
_tokenIduint256the key to share
_timeShareduint256The amount of time shared checks if _to is a smart contract (code size > 0). If so, it calls onERC721Received on _to and throws if the return value is not bytes4(keccak256('onERC721Received(address,address,uint,bytes)')).

supportsInterface

function supportsInterface(bytes4 interfaceId) external view returns (bool)

From ERC165.sol

Parameters

NameTypeDescription
interfaceIdbytes4undefined

Returns

NameTypeDescription
_0boolundefined

symbol

function symbol() external view returns (string)

Gets the token symbol

Returns

NameTypeDescription
_0stringstring representing the token symbol

tokenAddress

function tokenAddress() external view returns (address)

Returns

NameTypeDescription
_0addressundefined

tokenByIndex

function tokenByIndex(uint256 index) external view returns (uint256)

Parameters

NameTypeDescription
indexuint256undefined

Returns

NameTypeDescription
_0uint256undefined

tokenOfOwnerByIndex

function tokenOfOwnerByIndex(address _owner, uint256 index) external view returns (uint256 tokenId)

Parameters

NameTypeDescription
_owneraddressundefined
indexuint256undefined

Returns

NameTypeDescription
tokenIduint256undefined

tokenURI

function tokenURI(uint256 _tokenId) external view returns (string)

A distinct Uniform Resource Identifier (URI) for a given asset.

Throws if _tokenId is not a valid NFT. URIs are defined in RFC 3986. The URI may point to a JSON file that conforms to the "ERC721 Metadata JSON Schema". https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md

Parameters

NameTypeDescription
_tokenIduint256The tokenID we're inquiring about

Returns

NameTypeDescription
_0stringString representing the URI for the requested token

totalSupply

function totalSupply() external view returns (uint256)

Returns

NameTypeDescription
_0uint256undefined

transfer

function transfer(address _to, uint256 _value) external nonpayable returns (bool success)

An ERC-20 style transfer.

The typical use case would be to call this with _value 1, which is on par with calling transferFrom. If the user has more than expirationDuration time remaining this may use the shareKey function to send some but not all of the token.

Parameters

NameTypeDescription
_toaddressundefined
_valueuint256sends a token with _value * expirationDuration (the amount of time remaining on a standard purchase).

Returns

NameTypeDescription
successboolundefined

transferFeeBasisPoints

function transferFeeBasisPoints() external view returns (uint256)

Returns

NameTypeDescription
_0uint256undefined

transferFrom

function transferFrom(address from, address to, uint256 tokenId) external nonpayable

Transfers a specific NFT (tokenId) from one account (from) to another (to). Requirements: - If the caller is not from, it must be approved to move this NFT by either approve or setApprovalForAll.

Parameters

NameTypeDescription
fromaddressundefined
toaddressundefined
tokenIduint256undefined

unlockProtocol

function unlockProtocol() external view returns (address)

Returns

NameTypeDescription
_0addressundefined

updateBeneficiary

function updateBeneficiary(address _beneficiary) external nonpayable

A function which lets a Lock manager update the beneficiary account, which receives funds on withdrawal.

Throws if called by other than a Lock manager or beneficiaryThrows if _beneficiary is address(0)

Parameters

NameTypeDescription
_beneficiaryaddressThe new address to set as the beneficiary

updateKeyPricing

function updateKeyPricing(uint256 _keyPrice, address _tokenAddress) external nonpayable

A function which lets a Lock manager of the lock to change the price for future purchases.

Throws if called by other than a Lock managerThrows if lock has been disabledThrows if _tokenAddress is not a valid token

Parameters

NameTypeDescription
_keyPriceuint256The new price to set for keys
_tokenAddressaddressThe address of the erc20 token to use for pricing the keys, or 0 to use ETH

updateLockName

function updateLockName(string _lockName) external nonpayable

Allows a Lock manager to assign a descriptive name for this Lock.

Throws if called by other than a Lock manager

Parameters

NameTypeDescription
_lockNamestringThe new name for the lock

updateLockSymbol

function updateLockSymbol(string _lockSymbol) external nonpayable

Allows a Lock manager to assign a Symbol for this Lock.

Throws if called by other than a Lock manager

Parameters

NameTypeDescription
_lockSymbolstringThe new Symbol for the lock

updateRefundPenalty

function updateRefundPenalty(uint256 _freeTrialLength, uint256 _refundPenaltyBasisPoints) external nonpayable

Allow a Lock manager to change the refund penalty.

Throws if called by other than a Lock manager

Parameters

NameTypeDescription
_freeTrialLengthuint256The new duration of free trials for this lock
_refundPenaltyBasisPointsuint256The new refund penaly in basis-points(bps)

updateSchemaVersion

function updateSchemaVersion() external nonpayable

Set the schema version to the latestonly lock manager call call this

updateTransferFee

function updateTransferFee(uint256 _transferFeeBasisPoints) external nonpayable

Allow a Lock manager to change the transfer fee.

Throws if called by other than a Lock manager

Parameters

NameTypeDescription
_transferFeeBasisPointsuint256The new transfer fee in basis-points(bps). Ex: 200 bps = 2%

withdraw

function withdraw(address _tokenAddress, uint256 _amount) external nonpayable

Called by a lock manager or beneficiary to withdraw all funds from the lock and send them to the beneficiary.Throws if called by other than a lock manager or beneficiary

Parameters

NameTypeDescription
_tokenAddressaddressspecifies the token address to withdraw or 0 for ETH. This is usually the same as tokenAddress in MixinFunds.
_amountuint256specifies the max amount to withdraw, which may be reduced when considering the available balance. Set to 0 or MAX_UINT to withdraw everything. -- however be wary of draining funds as it breaks the cancelAndRefund and expireAndRefundFor use cases.