/
key.go
108 lines (86 loc) · 3.74 KB
/
key.go
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package types
import (
"fmt"
"github.com/tendermint/tendermint/crypto"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/address"
)
const (
// ModuleName is the name of the module
ModuleName = "marker"
// StoreKey is string representation of the store key for marker
StoreKey = ModuleName
// RouterKey to be used for routing msgs
RouterKey = ModuleName
// QuerierRoute to be used for queries
QuerierRoute = ModuleName
// CoinPoolName to be used for coin pool associated with mint/burn activities.
CoinPoolName = ModuleName
// DefaultParamspace is the name used for the parameter subspace for this module.
DefaultParamspace = ModuleName
)
var (
// MarkerStoreKeyPrefix prefix for marker-address reference (improves iterator performance over auth accounts)
MarkerStoreKeyPrefix = []byte{0x02}
// DenySendKeyPrefix prefix for adding addresses that are denied send functionality on restricted markers
DenySendKeyPrefix = []byte{0x03}
// NetAssetValuePrefix prefix for net asset values of markers
NetAssetValuePrefix = []byte{0x04}
)
// MarkerAddress returns the module account address for the given denomination
func MarkerAddress(denom string) (sdk.AccAddress, error) {
if err := sdk.ValidateDenom(denom); err != nil {
return nil, err
}
return sdk.AccAddress(crypto.AddressHash([]byte(fmt.Sprintf("%s/%s", ModuleName, denom)))), nil
}
// MustGetMarkerAddress returns the module account address for the given denomination, panics on error
func MustGetMarkerAddress(denom string) sdk.AccAddress {
addr, err := MarkerAddress(denom)
if err != nil {
panic(err)
}
return addr
}
// MarkerStoreKey turn an address to key used to get it from the account store
func MarkerStoreKey(addr sdk.AccAddress) []byte {
return append(MarkerStoreKeyPrefix, address.MustLengthPrefix(addr.Bytes())...)
}
// SplitMarkerStoreKey returns an account address given a store key, uses the length prefix to determine length of AccAddress
func SplitMarkerStoreKey(key []byte) sdk.AccAddress {
return sdk.AccAddress(key[2 : key[1]+2])
}
// DenySendKey returns a key [prefix][denom addr][deny addr] for send deny list for restricted markers
func DenySendKey(markerAddr sdk.AccAddress, denyAddr sdk.AccAddress) []byte {
key := DenySendKeyPrefix
key = append(key, address.MustLengthPrefix(markerAddr.Bytes())...)
return append(key, address.MustLengthPrefix(denyAddr.Bytes())...)
}
// GetDenySendAddresses returns marker and denied send sdk.AccAddress's from DenySendKey
func GetDenySendAddresses(key []byte) (markerAddr sdk.AccAddress, denyAddr sdk.AccAddress) {
markerKeyLen := key[1]
denyKeyLen := key[markerKeyLen+2]
markerAddr = sdk.AccAddress(key[2 : markerKeyLen+2])
denyAddr = sdk.AccAddress(key[markerKeyLen+3 : markerKeyLen+3+denyKeyLen])
return
}
// DenySendMarkerPrefix returns an extended prefix [prefix][denom addr] for send deny list for restricted markers
func DenySendMarkerPrefix(markerAddr sdk.AccAddress) []byte {
key := DenySendKeyPrefix
key = append(key, address.MustLengthPrefix(markerAddr.Bytes())...)
return key
}
// NetAssetValueKey returns key [prefix][marker address] for marker net asset values
func NetAssetValueKeyPrefix(markerAddr sdk.AccAddress) []byte {
return append(NetAssetValuePrefix, address.MustLengthPrefix(markerAddr.Bytes())...)
}
// NetAssetValueKey returns key [prefix][marker address][asset denom value] for marker net asset value by value denom
func NetAssetValueKey(markerAddr sdk.AccAddress, denom string) []byte {
return append(NetAssetValueKeyPrefix(markerAddr), denom...)
}
// GetMarkerFromNetAssetValueKey returns the marker address in the NetAssetValue key.
func GetMarkerFromNetAssetValueKey(key []byte) sdk.AccAddress {
markerKeyLen := key[1]
markerAddr := sdk.AccAddress(key[2 : markerKeyLen+2])
return markerAddr
}