mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-27 22:28:21 +00:00
100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
// Copyright 2015 The go-ethereum Authors
|
|
// This file is part of go-ethereum.
|
|
//
|
|
// go-ethereum is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// go-ethereum is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package api
|
|
|
|
import (
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/rpc/codec"
|
|
"github.com/ethereum/go-ethereum/rpc/shared"
|
|
"github.com/ethereum/go-ethereum/xeth"
|
|
)
|
|
|
|
const (
|
|
Web3ApiVersion = "1.0"
|
|
)
|
|
|
|
var (
|
|
// mapping between methods and handlers
|
|
Web3Mapping = map[string]web3handler{
|
|
"web3_sha3": (*web3Api).Sha3,
|
|
"web3_clientVersion": (*web3Api).ClientVersion,
|
|
}
|
|
)
|
|
|
|
// web3 callback handler
|
|
type web3handler func(*web3Api, *shared.Request) (interface{}, error)
|
|
|
|
// web3 api provider
|
|
type web3Api struct {
|
|
xeth *xeth.XEth
|
|
methods map[string]web3handler
|
|
codec codec.ApiCoder
|
|
}
|
|
|
|
// create a new web3 api instance
|
|
func NewWeb3Api(xeth *xeth.XEth, coder codec.Codec) *web3Api {
|
|
return &web3Api{
|
|
xeth: xeth,
|
|
methods: Web3Mapping,
|
|
codec: coder.New(nil),
|
|
}
|
|
}
|
|
|
|
// collection with supported methods
|
|
func (self *web3Api) Methods() []string {
|
|
methods := make([]string, len(self.methods))
|
|
i := 0
|
|
for k := range self.methods {
|
|
methods[i] = k
|
|
i++
|
|
}
|
|
return methods
|
|
}
|
|
|
|
// Execute given request
|
|
func (self *web3Api) Execute(req *shared.Request) (interface{}, error) {
|
|
if callback, ok := self.methods[req.Method]; ok {
|
|
return callback(self, req)
|
|
}
|
|
|
|
return nil, &shared.NotImplementedError{req.Method}
|
|
}
|
|
|
|
func (self *web3Api) Name() string {
|
|
return shared.Web3ApiName
|
|
}
|
|
|
|
func (self *web3Api) ApiVersion() string {
|
|
return Web3ApiVersion
|
|
}
|
|
|
|
// Calculates the sha3 over req.Params.Data
|
|
func (self *web3Api) Sha3(req *shared.Request) (interface{}, error) {
|
|
args := new(Sha3Args)
|
|
if err := self.codec.Decode(req.Params, &args); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return common.ToHex(crypto.Sha3(common.FromHex(args.Data))), nil
|
|
}
|
|
|
|
// returns the xeth client vrsion
|
|
func (self *web3Api) ClientVersion(req *shared.Request) (interface{}, error) {
|
|
return self.xeth.ClientVersion(), nil
|
|
}
|