forked from TrueCloudLab/neoneo-go
101 lines
4 KiB
Go
101 lines
4 KiB
Go
/*
|
|
Package rolemgmt allows to work with the native RoleManagement contract via RPC.
|
|
|
|
Safe methods are encapsulated into ContractReader structure while Contract provides
|
|
various methods to perform the only RoleManagement state-changing call.
|
|
*/
|
|
package rolemgmt
|
|
|
|
import (
|
|
"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/native/noderoles"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/state"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
|
|
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
|
|
"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
|
|
"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
|
|
"github.com/nspcc-dev/neo-go/pkg/util"
|
|
)
|
|
|
|
// Invoker is used by ContractReader to call various methods.
|
|
type Invoker interface {
|
|
Call(contract util.Uint160, operation string, params ...interface{}) (*result.Invoke, error)
|
|
}
|
|
|
|
// Actor is used by Contract to create and send transactions.
|
|
type Actor interface {
|
|
Invoker
|
|
|
|
MakeCall(contract util.Uint160, method string, params ...interface{}) (*transaction.Transaction, error)
|
|
MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...interface{}) (*transaction.Transaction, error)
|
|
SendCall(contract util.Uint160, method string, params ...interface{}) (util.Uint256, uint32, error)
|
|
}
|
|
|
|
// Hash stores the hash of the native RoleManagement contract.
|
|
var Hash = state.CreateNativeContractHash(nativenames.Designation)
|
|
|
|
const designateMethod = "designateAsRole"
|
|
|
|
// ContractReader provides an interface to call read-only RoleManagement
|
|
// contract's methods.
|
|
type ContractReader struct {
|
|
invoker Invoker
|
|
}
|
|
|
|
// Contract represents a RoleManagement contract client that can be used to
|
|
// invoke all of its methods.
|
|
type Contract struct {
|
|
ContractReader
|
|
|
|
actor Actor
|
|
}
|
|
|
|
// DesignationEvent represents an event emitted by RoleManagement contract when
|
|
// a new role designation is done.
|
|
type DesignationEvent struct {
|
|
Role noderoles.Role
|
|
BlockIndex uint32
|
|
}
|
|
|
|
// NewReader creates an instance of ContractReader that can be used to read
|
|
// data from the contract.
|
|
func NewReader(invoker Invoker) *ContractReader {
|
|
return &ContractReader{invoker}
|
|
}
|
|
|
|
// New creates an instance of Contract to perform actions using
|
|
// the given Actor. Notice that RoleManagement's state can be changed
|
|
// only by the network's committee, so the Actor provided must be a committee
|
|
// actor for designation methods to work properly.
|
|
func New(actor Actor) *Contract {
|
|
return &Contract{*NewReader(actor), actor}
|
|
}
|
|
|
|
// GetDesignatedByRole returns the list of the keys designated to serve for the
|
|
// given role at the given height. The list can be empty if no keys are
|
|
// configured for this role/height.
|
|
func (c *ContractReader) GetDesignatedByRole(role noderoles.Role, index uint32) (keys.PublicKeys, error) {
|
|
return unwrap.ArrayOfPublicKeys(c.invoker.Call(Hash, "getDesignatedByRole", int64(role), index))
|
|
}
|
|
|
|
// DesignateAsRole creates and sends a transaction that sets the keys used for
|
|
// the given node role. The action is successful when transaction ends in HALT
|
|
// state. The returned values are transaction hash, its ValidUntilBlock value
|
|
// and an error if any.
|
|
func (c *Contract) DesignateAsRole(role noderoles.Role, pubs keys.PublicKeys) (util.Uint256, uint32, error) {
|
|
return c.actor.SendCall(Hash, designateMethod, int(role), pubs)
|
|
}
|
|
|
|
// DesignateAsRoleTransaction creates a transaction that sets the keys for the
|
|
// given node role. This transaction is signed, but not sent to the network,
|
|
// instead it's returned to the caller.
|
|
func (c *Contract) DesignateAsRoleTransaction(role noderoles.Role, pubs keys.PublicKeys) (*transaction.Transaction, error) {
|
|
return c.actor.MakeCall(Hash, designateMethod, int(role), pubs)
|
|
}
|
|
|
|
// DesignateAsRoleUnsigned creates a transaction that sets the keys for the
|
|
// given node role. This transaction is not signed and just returned to the
|
|
// caller.
|
|
func (c *Contract) DesignateAsRoleUnsigned(role noderoles.Role, pubs keys.PublicKeys) (*transaction.Transaction, error) {
|
|
return c.actor.MakeUnsignedCall(Hash, designateMethod, nil, int(role), pubs)
|
|
}
|