Transfer Manager module for core transfer validation functionality (GeneralTransferManager.sol)

View Source: contracts/modules/TransferManager/GTM/GeneralTransferManager.sol

↗ Extends: GeneralTransferManagerStorage, TransferManager

GeneralTransferManager

Events

event ChangeIssuanceAddress(address  _issuanceAddress);
event ChangeDefaults(uint64  _defaultCanSendAfter, uint64  _defaultCanReceiveAfter);
event ModifyKYCData(address indexed _investor, address indexed _addedBy, uint64  _canSendAfter, uint64  _canReceiveAfter, uint64  _expiryTime);
event ModifyInvestorFlag(address indexed _investor, uint8 indexed _flag, bool  _value);
event ModifyTransferRequirements(enum GeneralTransferManagerStorage.TransferType indexed _transferType, bool  _fromValidKYC, bool  _toValidKYC, bool  _fromRestricted, bool  _toRestricted);

Functions

• (address _securityToken, address _polyToken)

• getInitFunction()

• changeDefaults(uint64 _defaultCanSendAfter, uint64 _defaultCanReceiveAfter)

• changeIssuanceAddress(address _issuanceAddress)

• executeTransfer(address _from, address _to, uint256 , bytes _data)

• _processTransferSignature(uint256 _nonce, uint256 _validFrom, uint256 _validTo, bytes _data)

• verifyTransfer(address _from, address _to, uint256 , bytes )

• _verifyTransfer(address _from, address _to)

• modifyTransferRequirements(enum GeneralTransferManagerStorage.TransferType _transferType, bool _fromValidKYC, bool _toValidKYC, bool _fromRestricted, bool _toRestricted)

• modifyTransferRequirementsMulti(enum GeneralTransferManagerStorage.TransferType[] _transferTypes, bool[] _fromValidKYC, bool[] _toValidKYC, bool[] _fromRestricted, bool[] _toRestricted)

• _modifyTransferRequirements(enum GeneralTransferManagerStorage.TransferType _transferType, bool _fromValidKYC, bool _toValidKYC, bool _fromRestricted, bool _toRestricted)

• modifyKYCData(address _investor, uint64 _canSendAfter, uint64 _canReceiveAfter, uint64 _expiryTime)

• _modifyKYCData(address _investor, uint64 _canSendAfter, uint64 _canReceiveAfter, uint64 _expiryTime)

• modifyKYCDataMulti(address[] _investors, uint64[] _canSendAfter, uint64[] _canReceiveAfter, uint64[] _expiryTime)

• modifyInvestorFlag(address _investor, uint8 _flag, bool _value)

• _modifyInvestorFlag(address _investor, uint8 _flag, bool _value)

• modifyInvestorFlagMulti(address[] _investors, uint8[] _flag, bool[] _value)

• modifyKYCDataSigned(address _investor, uint256 _canSendAfter, uint256 _canReceiveAfter, uint256 _expiryTime, uint256 _validFrom, uint256 _validTo, uint256 _nonce, bytes _signature)

• _modifyKYCDataSigned(address _investor, uint256 _canSendAfter, uint256 _canReceiveAfter, uint256 _expiryTime, uint256 _validFrom, uint256 _validTo, uint256 _nonce, bytes _signature)

• modifyKYCDataSignedMulti(address[] _investor, uint256[] _canSendAfter, uint256[] _canReceiveAfter, uint256[] _expiryTime, uint256 _validFrom, uint256 _validTo, uint256 _nonce, bytes _signature)

• _modifyKYCDataSignedMulti(address[] _investor, uint256[] _canSendAfter, uint256[] _canReceiveAfter, uint256[] _expiryTime, uint256 _validFrom, uint256 _validTo, uint256 _nonce, bytes _signature)

• _checkSig(bytes32 _hash, bytes _signature, uint256 _nonce)

• _validExpiry(uint64 _expiryTime)

• _validLockTime(uint64 _lockTime)

• _adjustTimes(uint64 _canSendAfter, uint64 _canReceiveAfter)

• _getKey(bytes32 _key1, address _key2)

• _getKYCValues(address _investor, IDataStore dataStore)

• _isExistingInvestor(address _investor, IDataStore dataStore)

• _getValuesForTransfer(address _from, address _to)

• getAllInvestors()

• getInvestors(uint256 _fromIndex, uint256 _toIndex)

• getAllInvestorFlags()

• getInvestorFlag(address _investor, uint8 _flag)

• getInvestorFlags(address _investor)

• _getInvestorFlags(address _investor)

• getAllKYCData()

• getKYCData(address[] _investors)

• _kycData(address[] _investors)

• getPermissions()

• getTokensByPartition(bytes32 _partition, address _tokenHolder, uint256 _additionalBalance)

• getAddressBytes32()

Constructor

function (address _securityToken, address _polyToken) public nonpayable Module

Arguments

Name	Type	Description
_securityToken	address	Address of the security token
_polyToken	address

getInitFunction

⤾ overrides IModule.getInitFunction

This function returns the signature of configure function

function getInitFunction() public pure
returns(bytes4)

Arguments

Name	Type	Description

changeDefaults

Used to change the default times used when canSendAfter / canReceiveAfter are zero

function changeDefaults(uint64 _defaultCanSendAfter, uint64 _defaultCanReceiveAfter) public nonpayable withPerm

Arguments

Name	Type	Description
_defaultCanSendAfter	uint64	default for zero canSendAfter
_defaultCanReceiveAfter	uint64	default for zero canReceiveAfter

changeIssuanceAddress

Used to change the Issuance Address

function changeIssuanceAddress(address _issuanceAddress) public nonpayable withPerm

Arguments

Name	Type	Description
_issuanceAddress	address	new address for the issuance

executeTransfer

⤾ overrides ITransferManager.executeTransfer

Default implementation of verifyTransfer used by SecurityToken If the transfer request comes from the STO, it only checks that the investor is in the whitelist If the transfer request comes from a token holder, it checks that: a) Both are on the whitelist b) Seller's sale lockup period is over c) Buyer's purchase lockup is over

function executeTransfer(address _from, address _to, uint256 , bytes _data) external nonpayable
returns(enum ITransferManager.Result)

Arguments

Name	Type	Description
_from	address	Address of the sender
_to	address	Address of the receiver
	uint256	_from Address of the sender
_data	bytes

_processTransferSignature

function _processTransferSignature(uint256 _nonce, uint256 _validFrom, uint256 _validTo, bytes _data) internal nonpayable

Arguments

Name	Type	Description
_nonce	uint256
_validFrom	uint256
_validTo	uint256
_data	bytes

verifyTransfer

⤾ overrides ITransferManager.verifyTransfer

Default implementation of verifyTransfer used by SecurityToken

function verifyTransfer(address _from, address _to, uint256 , bytes ) public view
returns(enum ITransferManager.Result, bytes32)

Arguments

Name	Type	Description
_from	address	Address of the sender
_to	address	Address of the receiver
	uint256	_from Address of the sender
	bytes	_from Address of the sender

_verifyTransfer

function _verifyTransfer(address _from, address _to) internal view
returns(enum ITransferManager.Result, bytes32)

Arguments

Name	Type	Description
_from	address
_to	address

modifyTransferRequirements

Modifies the successful checks required for a transfer to be deemed valid.

function modifyTransferRequirements(enum GeneralTransferManagerStorage.TransferType _transferType, bool _fromValidKYC, bool _toValidKYC, bool _fromRestricted, bool _toRestricted) public nonpayable withPerm

Arguments

Name	Type	Description
_transferType	enum GeneralTransferManagerStorage.TransferType	Type of transfer (0 = General, 1 = Issuance, 2 = Redemption)
_fromValidKYC	bool	Defines if KYC is required for the sender
_toValidKYC	bool	Defines if KYC is required for the receiver
_fromRestricted	bool	Defines if transfer time restriction is checked for the sender
_toRestricted	bool	Defines if transfer time restriction is checked for the receiver

modifyTransferRequirementsMulti

Modifies the successful checks required for transfers.

function modifyTransferRequirementsMulti(enum GeneralTransferManagerStorage.TransferType[] _transferTypes, bool[] _fromValidKYC, bool[] _toValidKYC, bool[] _fromRestricted, bool[] _toRestricted) public nonpayable withPerm

Arguments

Name	Type	Description
_transferTypes	enum GeneralTransferManagerStorage.TransferType[]	Types of transfer (0 = General, 1 = Issuance, 2 = Redemption)
_fromValidKYC	bool[]	Defines if KYC is required for the sender
_toValidKYC	bool[]	Defines if KYC is required for the receiver
_fromRestricted	bool[]	Defines if transfer time restriction is checked for the sender
_toRestricted	bool[]	Defines if transfer time restriction is checked for the receiver

_modifyTransferRequirements

function _modifyTransferRequirements(enum GeneralTransferManagerStorage.TransferType _transferType, bool _fromValidKYC, bool _toValidKYC, bool _fromRestricted, bool _toRestricted) internal nonpayable

Arguments

Name	Type	Description
_transferType	enum GeneralTransferManagerStorage.TransferType
_fromValidKYC	bool
_toValidKYC	bool
_fromRestricted	bool
_toRestricted	bool

modifyKYCData

Add or remove KYC info of an investor.

function modifyKYCData(address _investor, uint64 _canSendAfter, uint64 _canReceiveAfter, uint64 _expiryTime) public nonpayable withPerm

Arguments

Name	Type	Description
_investor	address	is the address to whitelist
_canSendAfter	uint64	is the moment when the sale lockup period ends and the investor can freely sell or transfer their tokens
_canReceiveAfter	uint64	is the moment when the purchase lockup period ends and the investor can freely purchase or receive tokens from others
_expiryTime	uint64	is the moment till investors KYC will be validated. After that investor need to do re-KYC

_modifyKYCData

function _modifyKYCData(address _investor, uint64 _canSendAfter, uint64 _canReceiveAfter, uint64 _expiryTime) internal nonpayable

Arguments

Name	Type	Description
_investor	address
_canSendAfter	uint64
_canReceiveAfter	uint64
_expiryTime	uint64

modifyKYCDataMulti

Add or remove KYC info of an investor.

function modifyKYCDataMulti(address[] _investors, uint64[] _canSendAfter, uint64[] _canReceiveAfter, uint64[] _expiryTime) public nonpayable withPerm

Arguments

Name	Type	Description
_investors	address[]	is the address to whitelist
_canSendAfter	uint64[]	is the moment when the sale lockup period ends and the investor can freely sell his tokens
_canReceiveAfter	uint64[]	is the moment when the purchase lockup period ends and the investor can freely purchase tokens from others
_expiryTime	uint64[]	is the moment till investors KYC will be validated. After that investor need to do re-KYC

modifyInvestorFlag

Used to modify investor Flag.

function modifyInvestorFlag(address _investor, uint8 _flag, bool _value) public nonpayable withPerm

Arguments

Name	Type	Description
_investor	address	is the address of the investor.
_flag	uint8	index of flag to change. flag is used to know specifics about investor like isAccredited.
_value	bool	value of the flag. a flag can be true or false.

_modifyInvestorFlag

function _modifyInvestorFlag(address _investor, uint8 _flag, bool _value) internal nonpayable

Arguments

Name	Type	Description
_investor	address
_flag	uint8
_value	bool

modifyInvestorFlagMulti

Used to modify investor data.

function modifyInvestorFlagMulti(address[] _investors, uint8[] _flag, bool[] _value) public nonpayable withPerm

Arguments

Name	Type	Description
_investors	address[]	List of the addresses to modify data about.
_flag	uint8[]	index of flag to change. flag is used to know specifics about investor like isAccredited.
_value	bool[]	value of the flag. a flag can be true or false.

modifyKYCDataSigned

Adds or removes addresses from the whitelist - can be called by anyone with a valid signature

function modifyKYCDataSigned(address _investor, uint256 _canSendAfter, uint256 _canReceiveAfter, uint256 _expiryTime, uint256 _validFrom, uint256 _validTo, uint256 _nonce, bytes _signature) public nonpayable

Arguments

Name	Type	Description
_investor	address	is the address to whitelist
_canSendAfter	uint256	is the moment when the sale lockup period ends and the investor can freely sell his tokens
_canReceiveAfter	uint256	is the moment when the purchase lockup period ends and the investor can freely purchase tokens from others
_expiryTime	uint256	is the moment till investors KYC will be validated. After that investor need to do re-KYC
_validFrom	uint256	is the time that this signature is valid from
_validTo	uint256	is the time that this signature is valid until
_nonce	uint256	nonce of signature (avoid replay attack)
_signature	bytes	issuer signature

_modifyKYCDataSigned

function _modifyKYCDataSigned(address _investor, uint256 _canSendAfter, uint256 _canReceiveAfter, uint256 _expiryTime, uint256 _validFrom, uint256 _validTo, uint256 _nonce, bytes _signature) internal nonpayable
returns(bool)

Arguments

Name	Type	Description
_investor	address
_canSendAfter	uint256
_canReceiveAfter	uint256
_expiryTime	uint256
_validFrom	uint256
_validTo	uint256
_nonce	uint256
_signature	bytes

modifyKYCDataSignedMulti

Adds or removes addresses from the whitelist - can be called by anyone with a valid signature

function modifyKYCDataSignedMulti(address[] _investor, uint256[] _canSendAfter, uint256[] _canReceiveAfter, uint256[] _expiryTime, uint256 _validFrom, uint256 _validTo, uint256 _nonce, bytes _signature) public nonpayable

Arguments

Name	Type	Description
_investor	address[]	is the address to whitelist
_canSendAfter	uint256[]	is the moment when the sale lockup period ends and the investor can freely sell his tokens
_canReceiveAfter	uint256[]	is the moment when the purchase lockup period ends and the investor can freely purchase tokens from others
_expiryTime	uint256[]	is the moment till investors KYC will be validated. After that investor need to do re-KYC
_validFrom	uint256	is the time that this signature is valid from
_validTo	uint256	is the time that this signature is valid until
_nonce	uint256	nonce of signature (avoid replay attack)
_signature	bytes	issuer signature

_modifyKYCDataSignedMulti

function _modifyKYCDataSignedMulti(address[] _investor, uint256[] _canSendAfter, uint256[] _canReceiveAfter, uint256[] _expiryTime, uint256 _validFrom, uint256 _validTo, uint256 _nonce, bytes _signature) internal nonpayable
returns(bool)

Arguments

Name	Type	Description
_investor	address[]
_canSendAfter	uint256[]
_canReceiveAfter	uint256[]
_expiryTime	uint256[]
_validFrom	uint256
_validTo	uint256
_nonce	uint256
_signature	bytes

_checkSig

Used to verify the signature

function _checkSig(bytes32 _hash, bytes _signature, uint256 _nonce) internal nonpayable
returns(bool)

Arguments

Name	Type	Description
_hash	bytes32
_signature	bytes
_nonce	uint256

_validExpiry

Internal function used to check whether the KYC of investor is valid

function _validExpiry(uint64 _expiryTime) internal view
returns(valid bool)

Arguments

Name	Type	Description
_expiryTime	uint64	Expiry time of the investor

_validLockTime

Internal function used to check whether the lock time of investor is valid

function _validLockTime(uint64 _lockTime) internal view
returns(valid bool)

Arguments

Name	Type	Description
_lockTime	uint64	Lock time of the investor

_adjustTimes

Internal function to adjust times using default values

function _adjustTimes(uint64 _canSendAfter, uint64 _canReceiveAfter) internal view
returns(uint64, uint64)

Arguments

Name	Type	Description
_canSendAfter	uint64
_canReceiveAfter	uint64

_getKey

function _getKey(bytes32 _key1, address _key2) internal pure
returns(bytes32)

Arguments

Name	Type	Description
_key1	bytes32
_key2	address

_getKYCValues

function _getKYCValues(address _investor, IDataStore dataStore) internal view
returns(canSendAfter uint64, canReceiveAfter uint64, expiryTime uint64, added uint8)

Arguments

Name	Type	Description
_investor	address
dataStore	IDataStore

_isExistingInvestor

function _isExistingInvestor(address _investor, IDataStore dataStore) internal view
returns(bool)

Arguments

Name	Type	Description
_investor	address
dataStore	IDataStore

_getValuesForTransfer

function _getValuesForTransfer(address _from, address _to) internal view
returns(canSendAfter uint64, fromExpiry uint64, canReceiveAfter uint64, toExpiry uint64)

Arguments

Name	Type	Description
_from	address
_to	address

getAllInvestors

Returns list of all investors

function getAllInvestors() public view
returns(investors address[])

Arguments

Name	Type	Description

getInvestors

Returns list of investors in a range

function getInvestors(uint256 _fromIndex, uint256 _toIndex) public view
returns(investors address[])

Arguments

Name	Type	Description
_fromIndex	uint256
_toIndex	uint256

getAllInvestorFlags

function getAllInvestorFlags() public view
returns(investors address[], flags uint256[])

Arguments

Name	Type	Description

getInvestorFlag

function getInvestorFlag(address _investor, uint8 _flag) public view
returns(value bool)

Arguments

Name	Type	Description
_investor	address
_flag	uint8

getInvestorFlags

function getInvestorFlags(address _investor) public view
returns(flags uint256)

Arguments

Name	Type	Description
_investor	address

_getInvestorFlags

function _getInvestorFlags(address _investor) internal view
returns(flags uint256)

Arguments

Name	Type	Description
_investor	address

getAllKYCData

Returns list of all investors data

function getAllKYCData() external view
returns(investors address[], canSendAfters uint256[], canReceiveAfters uint256[], expiryTimes uint256[])

Arguments

Name	Type	Description

getKYCData

Returns list of specified investors data

function getKYCData(address[] _investors) external view
returns(uint256[], uint256[], uint256[])

Arguments

Name	Type	Description
_investors	address[]

_kycData

function _kycData(address[] _investors) internal view
returns(uint256[], uint256[], uint256[])

Arguments

Name	Type	Description
_investors	address[]

getPermissions

⤾ overrides IModule.getPermissions

Return the permissions flag that are associated with general trnasfer manager

function getPermissions() public view
returns(bytes32[])

Arguments

Name	Type	Description

getTokensByPartition

⤾ overrides TransferManager.getTokensByPartition

return the amount of tokens for a given user as per the partition

function getTokensByPartition(bytes32 _partition, address _tokenHolder, uint256 _additionalBalance) external view
returns(uint256)

Arguments

Name	Type	Description
_partition	bytes32	Identifier
_tokenHolder	address	Whom token amount need to query
_additionalBalance	uint256	It is the _value that transfer during transfer/transferFrom function call

getAddressBytes32

function getAddressBytes32() public view
returns(bytes32)

Arguments

Name	Type	Description