// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library 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.
//
// The go-ethereum library 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 the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package node
import (
"fmt"
"strings"
"time"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/rpc/comms"
"github.com/rcrowley/go-metrics"
)
// PrivateAdminAPI is the collection of administrative API methods exposed only
// over a secure RPC channel.
type PrivateAdminAPI struct {
node *Node // Node interfaced by this API
}
// NewPrivateAdminAPI creates a new API definition for the private admin methods
// of the node itself.
func NewPrivateAdminAPI(node *Node) *PrivateAdminAPI {
return &PrivateAdminAPI{node: node}
}
// AddPeer requests connecting to a remote node, and also maintaining the new
// connection at all times, even reconnecting if it is lost.
func (api *PrivateAdminAPI) AddPeer(url string) (bool, error) {
// Make sure the server is running, fail otherwise
server := api.node.Server()
if server == nil {
return false, ErrNodeStopped
}
// Try to add the url as a static peer and return
node, err := discover.ParseNode(url)
if err != nil {
return false, fmt.Errorf("invalid enode: %v", err)
}
server.AddPeer(node)
return true, nil
}
// StartRPC starts the HTTP RPC API server.
func (api *PrivateAdminAPI) StartRPC(address string, port int, cors string, apis string) (bool, error) {
/*// Parse the list of API modules to make available
apis, err := api.ParseApiString(apis, codec.JSON, xeth.New(api.node, nil), api.node)
if err != nil {
return false, err
}
// Configure and start the HTTP RPC server
config := comms.HttpConfig{
ListenAddress: address,
ListenPort: port,
CorsDomain: cors,
}
if err := comms.StartHttp(config, self.codec, api.Merge(apis...)); err != nil {
return false, err
}
return true, nil*/
return false, fmt.Errorf("needs new RPC implementation to resolve circular dependency")
}
// StopRPC terminates an already running HTTP RPC API endpoint.
func (api *PrivateAdminAPI) StopRPC() {
comms.StopHttp()
}
// PublicAdminAPI is the collection of administrative API methods exposed over
// both secure and unsecure RPC channels.
type PublicAdminAPI struct {
node *Node // Node interfaced by this API
}
// NewPublicAdminAPI creates a new API definition for the public admin methods
// of the node itself.
func NewPublicAdminAPI(node *Node) *PublicAdminAPI {
return &PublicAdminAPI{node: node}
}
// Peers retrieves all the information we know about each individual peer at the
// protocol granularity.
func (api *PublicAdminAPI) Peers() ([]*p2p.PeerInfo, error) {
server := api.node.Server()
if server == nil {
return nil, ErrNodeStopped
}
return server.PeersInfo(), nil
}
// NodeInfo retrieves all the information we know about the host node at the
// protocol granularity.
func (api *PublicAdminAPI) NodeInfo() (*p2p.NodeInfo, error) {
server := api.node.Server()
if server == nil {
return nil, ErrNodeStopped
}
return server.NodeInfo(), nil
}
// Datadir retrieves the current data directory the node is using.
func (api *PublicAdminAPI) Datadir() string {
return api.node.DataDir()
}
// PrivateDebugAPI is the collection of debugging related API methods exposed
// only over a secure RPC channel.
type PrivateDebugAPI struct {
node *Node // Node interfaced by this API
}
// NewPrivateDebugAPI creates a new API definition for the private debug methods
// of the node itself.
func NewPrivateDebugAPI(node *Node) *PrivateDebugAPI {
return &PrivateDebugAPI{node: node}
}
// Verbosity updates the node's logging verbosity. Note, due to the lack of fine
// grained contextual loggers, this will update the verbosity level for the entire
// process, not just this node instance.
func (api *PrivateDebugAPI) Verbosity(level int) {
glog.SetV(level)
}
// Vmodule updates the node's logging verbosity pattern.
func (api *PrivateDebugAPI) Vmodule(pattern string) error {
return glog.SetVmodule(pattern)
}
// PublicDebugAPI is the collection of debugging related API methods exposed over
// both secure and unsecure RPC channels.
type PublicDebugAPI struct {
node *Node // Node interfaced by this API
}
// NewPublicDebugAPI creates a new API definition for the public debug methods
// of the node itself.
func NewPublicDebugAPI(node *Node) *PublicDebugAPI {
return &PublicDebugAPI{node: node}
}
// Metrics retrieves all the known system metric collected by the node.
func (api *PublicDebugAPI) Metrics(raw bool) (map[string]interface{}, error) {
// Create a rate formatter
units := []string{"", "K", "M", "G", "T", "E", "P"}
round := func(value float64, prec int) string {
unit := 0
for value >= 1000 {
unit, value, prec = unit+1, value/1000, 2
}
return fmt.Sprintf(fmt.Sprintf("%%.%df%s", prec, units[unit]), value)
}
format := func(total float64, rate float64) string {
return fmt.Sprintf("%s (%s/s)", round(total, 0), round(rate, 2))
}
// Iterate over all the metrics, and just dump for now
counters := make(map[string]interface{})
metrics.DefaultRegistry.Each(func(name string, metric interface{}) {
// Create or retrieve the counter hierarchy for this metric
root, parts := counters, strings.Split(name, "/")
for _, part := range parts[:len(parts)-1] {
if _, ok := root[part]; !ok {
root[part] = make(map[string]interface{})
}
root = root[part].(map[string]interface{})
}
name = parts[len(parts)-1]
// Fill the counter with the metric details, formatting if requested
if raw {
switch metric := metric.(type) {
case metrics.Meter:
root[name] = map[string]interface{}{
"AvgRate01Min": metric.Rate1(),
"AvgRate05Min": metric.Rate5(),
"AvgRate15Min": metric.Rate15(),
"MeanRate": metric.RateMean(),
"Overall": float64(metric.Count()),
}
case metrics.Timer:
root[name] = map[string]interface{}{
"AvgRate01Min": metric.Rate1(),
"AvgRate05Min": metric.Rate5(),
"AvgRate15Min": metric.Rate15(),
"MeanRate": metric.RateMean(),
"Overall": float64(metric.Count()),
"Percentiles": map[string]interface{}{
"5": metric.Percentile(0.05),
"20": metric.Percentile(0.2),
"50": metric.Percentile(0.5),
"80": metric.Percentile(0.8),
"95": metric.Percentile(0.95),
},
}
default:
root[name] = "Unknown metric type"
}
} else {
switch metric := metric.(type) {
case metrics.Meter:
root[name] = map[string]interface{}{
"Avg01Min": format(metric.Rate1()*60, metric.Rate1()),
"Avg05Min": format(metric.Rate5()*300, metric.Rate5()),
"Avg15Min": format(metric.Rate15()*900, metric.Rate15()),
"Overall": format(float64(metric.Count()), metric.RateMean()),
}
case metrics.Timer:
root[name] = map[string]interface{}{
"Avg01Min": format(metric.Rate1()*60, metric.Rate1()),
"Avg05Min": format(metric.Rate5()*300, metric.Rate5()),
"Avg15Min": format(metric.Rate15()*900, metric.Rate15()),
"Overall": format(float64(metric.Count()), metric.RateMean()),
"Maximum": time.Duration(metric.Max()).String(),
"Minimum": time.Duration(metric.Min()).String(),
"Percentiles": map[string]interface{}{
"5": time.Duration(metric.Percentile(0.05)).String(),
"20": time.Duration(metric.Percentile(0.2)).String(),
"50": time.Duration(metric.Percentile(0.5)).String(),
"80": time.Duration(metric.Percentile(0.8)).String(),
"95": time.Duration(metric.Percentile(0.95)).String(),
},
}
default:
root[name] = "Unknown metric type"
}
}
})
return counters, nil
}
