75 lines
2.3 KiB
Go
75 lines
2.3 KiB
Go
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// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package utils
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import (
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"fmt"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/node"
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"github.com/ethereum/go-ethereum/p2p"
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rpc "github.com/ethereum/go-ethereum/rpc/v2"
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)
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// PublicWeb3API offers helper utils
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type PublicWeb3API struct {
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stack *node.Node
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}
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// NewPublicWeb3API creates a new Web3Service instance
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func NewPublicWeb3API(stack *node.Node) *PublicWeb3API {
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return &PublicWeb3API{stack}
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}
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// ClientVersion returns the node name
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func (s *PublicWeb3API) ClientVersion() string {
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return s.stack.Server().Name
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}
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// Sha3 applies the ethereum sha3 implementation on the input.
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// It assumes the input is hex encoded.
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func (s *PublicWeb3API) Sha3(input string) string {
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return common.ToHex(crypto.Sha3(common.FromHex(input)))
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}
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// PublicNetAPI offers network related RPC methods
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type PublicNetAPI struct {
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net *p2p.Server
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networkVersion int
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}
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// NewPublicNetAPI creates a new net api instance.
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func NewPublicNetAPI(net *p2p.Server, networkVersion int) *PublicNetAPI {
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return &PublicNetAPI{net, networkVersion}
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}
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// Listening returns an indication if the node is listening for network connections.
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func (s *PublicNetAPI) Listening() bool {
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return true // always listening
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}
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// Peercount returns the number of connected peers
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func (s *PublicNetAPI) PeerCount() *rpc.HexNumber {
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return rpc.NewHexNumber(s.net.PeerCount())
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}
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// ProtocolVersion returns the current ethereum protocol version.
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func (s *PublicNetAPI) Version() string {
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return fmt.Sprintf("%d", s.networkVersion)
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}
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