2018-12-09 16:26:04 -07:00
|
|
|
package server
|
|
|
|
|
|
|
|
import (
|
|
|
|
"blockbook/api"
|
|
|
|
"blockbook/bchain"
|
|
|
|
"blockbook/common"
|
|
|
|
"blockbook/db"
|
|
|
|
"encoding/json"
|
2018-12-18 01:52:46 -07:00
|
|
|
"math/big"
|
2018-12-09 16:26:04 -07:00
|
|
|
"net/http"
|
|
|
|
"runtime/debug"
|
2018-12-18 01:52:46 -07:00
|
|
|
"strconv"
|
2018-12-09 16:26:04 -07:00
|
|
|
"sync"
|
|
|
|
"sync/atomic"
|
|
|
|
"time"
|
|
|
|
|
|
|
|
"github.com/golang/glog"
|
|
|
|
"github.com/gorilla/websocket"
|
|
|
|
"github.com/juju/errors"
|
|
|
|
)
|
|
|
|
|
|
|
|
const upgradeFailed = "Upgrade failed: "
|
|
|
|
const outChannelSize = 500
|
|
|
|
const defaultTimeout = 60 * time.Second
|
|
|
|
|
|
|
|
var (
|
|
|
|
// ErrorMethodNotAllowed is returned when client tries to upgrade method other than GET
|
|
|
|
ErrorMethodNotAllowed = errors.New("Method not allowed")
|
|
|
|
|
|
|
|
connectionCounter uint64
|
|
|
|
)
|
|
|
|
|
|
|
|
type websocketReq struct {
|
|
|
|
ID string `json:"id"`
|
|
|
|
Method string `json:"method"`
|
|
|
|
Params json.RawMessage `json:"params"`
|
|
|
|
}
|
|
|
|
|
|
|
|
type websocketRes struct {
|
|
|
|
ID string `json:"id"`
|
|
|
|
Data interface{} `json:"data"`
|
|
|
|
}
|
|
|
|
|
|
|
|
type websocketChannel struct {
|
|
|
|
id uint64
|
|
|
|
conn *websocket.Conn
|
|
|
|
out chan *websocketRes
|
|
|
|
ip string
|
|
|
|
requestHeader http.Header
|
|
|
|
alive bool
|
|
|
|
aliveLock sync.Mutex
|
|
|
|
}
|
|
|
|
|
|
|
|
// WebsocketServer is a handle to websocket server
|
|
|
|
type WebsocketServer struct {
|
|
|
|
socket *websocket.Conn
|
|
|
|
upgrader *websocket.Upgrader
|
|
|
|
db *db.RocksDB
|
|
|
|
txCache *db.TxCache
|
|
|
|
chain bchain.BlockChain
|
|
|
|
chainParser bchain.BlockChainParser
|
|
|
|
metrics *common.Metrics
|
|
|
|
is *common.InternalState
|
|
|
|
api *api.Worker
|
2018-12-15 16:26:41 -07:00
|
|
|
block0hash string
|
2018-12-09 16:26:04 -07:00
|
|
|
newBlockSubscriptions map[*websocketChannel]string
|
|
|
|
newBlockSubscriptionsLock sync.Mutex
|
|
|
|
addressSubscriptions map[string]map[*websocketChannel]string
|
|
|
|
addressSubscriptionsLock sync.Mutex
|
|
|
|
}
|
|
|
|
|
|
|
|
// NewWebsocketServer creates new websocket interface to blockbook and returns its handle
|
|
|
|
func NewWebsocketServer(db *db.RocksDB, chain bchain.BlockChain, txCache *db.TxCache, metrics *common.Metrics, is *common.InternalState) (*WebsocketServer, error) {
|
|
|
|
api, err := api.NewWorker(db, chain, txCache, is)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
2018-12-15 16:26:41 -07:00
|
|
|
b0, err := db.GetBlockHash(0)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
2018-12-09 16:26:04 -07:00
|
|
|
s := &WebsocketServer{
|
|
|
|
upgrader: &websocket.Upgrader{
|
|
|
|
ReadBufferSize: 1024 * 32,
|
|
|
|
WriteBufferSize: 1024 * 32,
|
2018-12-11 04:14:05 -07:00
|
|
|
CheckOrigin: checkOrigin,
|
2018-12-09 16:26:04 -07:00
|
|
|
},
|
|
|
|
db: db,
|
|
|
|
txCache: txCache,
|
|
|
|
chain: chain,
|
|
|
|
chainParser: chain.GetChainParser(),
|
|
|
|
metrics: metrics,
|
|
|
|
is: is,
|
|
|
|
api: api,
|
2018-12-15 16:26:41 -07:00
|
|
|
block0hash: b0,
|
2018-12-09 16:26:04 -07:00
|
|
|
newBlockSubscriptions: make(map[*websocketChannel]string),
|
|
|
|
addressSubscriptions: make(map[string]map[*websocketChannel]string),
|
|
|
|
}
|
|
|
|
return s, nil
|
|
|
|
}
|
|
|
|
|
2018-12-12 16:41:58 -07:00
|
|
|
// allow all origins
|
2018-12-11 04:14:05 -07:00
|
|
|
func checkOrigin(r *http.Request) bool {
|
|
|
|
return true
|
|
|
|
}
|
|
|
|
|
2018-12-09 16:26:04 -07:00
|
|
|
// ServeHTTP sets up handler of websocket channel
|
|
|
|
func (s *WebsocketServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
|
|
|
if r.Method != "GET" {
|
|
|
|
http.Error(w, upgradeFailed+ErrorMethodNotAllowed.Error(), 503)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
conn, err := s.upgrader.Upgrade(w, r, nil)
|
|
|
|
if err != nil {
|
|
|
|
http.Error(w, upgradeFailed+err.Error(), 503)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
c := &websocketChannel{
|
|
|
|
id: atomic.AddUint64(&connectionCounter, 1),
|
|
|
|
conn: conn,
|
|
|
|
out: make(chan *websocketRes, outChannelSize),
|
|
|
|
ip: r.RemoteAddr,
|
|
|
|
requestHeader: r.Header,
|
|
|
|
alive: true,
|
|
|
|
}
|
|
|
|
go s.inputLoop(c)
|
|
|
|
go s.outputLoop(c)
|
|
|
|
s.onConnect(c)
|
|
|
|
}
|
|
|
|
|
|
|
|
// GetHandler returns http handler
|
|
|
|
func (s *WebsocketServer) GetHandler() http.Handler {
|
|
|
|
return s
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s *WebsocketServer) closeChannel(c *websocketChannel) {
|
|
|
|
c.aliveLock.Lock()
|
|
|
|
defer c.aliveLock.Unlock()
|
|
|
|
if c.alive {
|
|
|
|
c.conn.Close()
|
|
|
|
c.alive = false
|
|
|
|
//clean out
|
|
|
|
close(c.out)
|
|
|
|
for len(c.out) > 0 {
|
|
|
|
<-c.out
|
|
|
|
}
|
|
|
|
s.onDisconnect(c)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func (c *websocketChannel) IsAlive() bool {
|
|
|
|
c.aliveLock.Lock()
|
|
|
|
defer c.aliveLock.Unlock()
|
|
|
|
return c.alive
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s *WebsocketServer) inputLoop(c *websocketChannel) {
|
|
|
|
defer func() {
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
glog.Error("recovered from panic: ", r, ", ", c.id)
|
|
|
|
debug.PrintStack()
|
|
|
|
s.closeChannel(c)
|
|
|
|
}
|
|
|
|
}()
|
|
|
|
for {
|
|
|
|
t, d, err := c.conn.ReadMessage()
|
|
|
|
if err != nil {
|
|
|
|
s.closeChannel(c)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
switch t {
|
|
|
|
case websocket.TextMessage:
|
|
|
|
var req websocketReq
|
|
|
|
err := json.Unmarshal(d, &req)
|
|
|
|
if err != nil {
|
|
|
|
glog.Error("Error parsing message from ", c.id, ", ", string(d), ", ", err)
|
|
|
|
s.closeChannel(c)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
go s.onRequest(c, &req)
|
|
|
|
case websocket.BinaryMessage:
|
|
|
|
glog.Error("Binary message received from ", c.id, ", ", c.ip)
|
|
|
|
s.closeChannel(c)
|
|
|
|
return
|
|
|
|
case websocket.PingMessage:
|
|
|
|
c.conn.WriteControl(websocket.PongMessage, nil, time.Now().Add(defaultTimeout))
|
|
|
|
break
|
|
|
|
case websocket.CloseMessage:
|
|
|
|
s.closeChannel(c)
|
|
|
|
return
|
|
|
|
case websocket.PongMessage:
|
|
|
|
// do nothing
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s *WebsocketServer) outputLoop(c *websocketChannel) {
|
|
|
|
for m := range c.out {
|
|
|
|
err := c.conn.WriteJSON(m)
|
|
|
|
if err != nil {
|
|
|
|
glog.Error("Error sending message to ", c.id, ", ", err)
|
|
|
|
s.closeChannel(c)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s *WebsocketServer) onConnect(c *websocketChannel) {
|
|
|
|
glog.Info("Client connected ", c.id, ", ", c.ip)
|
|
|
|
s.metrics.WebsocketClients.Inc()
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s *WebsocketServer) onDisconnect(c *websocketChannel) {
|
|
|
|
s.unsubscribeNewBlock(c)
|
2018-12-11 03:50:43 -07:00
|
|
|
s.unsubscribeAddresses(c)
|
2018-12-09 16:26:04 -07:00
|
|
|
glog.Info("Client disconnected ", c.id, ", ", c.ip)
|
|
|
|
s.metrics.WebsocketClients.Dec()
|
|
|
|
}
|
|
|
|
|
|
|
|
var requestHandlers = map[string]func(*WebsocketServer, *websocketChannel, *websocketReq) (interface{}, error){
|
|
|
|
"getAccountInfo": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
|
|
|
r, err := unmarshalGetAccountInfoRequest(req.Params)
|
|
|
|
if err == nil {
|
|
|
|
rv, err = s.getAccountInfo(r)
|
|
|
|
}
|
|
|
|
return
|
|
|
|
},
|
2018-12-15 16:26:41 -07:00
|
|
|
"getInfo": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
|
|
|
return s.getInfo()
|
|
|
|
},
|
2019-01-04 08:10:24 -07:00
|
|
|
"getBlockHash": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
|
|
|
r := struct {
|
|
|
|
Height int `json:"height"`
|
|
|
|
}{}
|
|
|
|
err = json.Unmarshal(req.Params, &r)
|
|
|
|
if err == nil {
|
|
|
|
rv, err = s.getBlockHash(r.Height)
|
|
|
|
}
|
|
|
|
return
|
|
|
|
},
|
2019-01-14 09:12:33 -07:00
|
|
|
"getAccountUtxo": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
|
|
|
r := struct {
|
|
|
|
Descriptor string `json:"descriptor"`
|
|
|
|
}{}
|
|
|
|
err = json.Unmarshal(req.Params, &r)
|
|
|
|
if err == nil {
|
|
|
|
rv, err = s.getAccountUtxo(r.Descriptor)
|
|
|
|
}
|
|
|
|
return
|
|
|
|
},
|
2019-01-16 08:10:30 -07:00
|
|
|
"getTransaction": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
|
|
|
r := struct {
|
|
|
|
Txid string `json:"txid"`
|
|
|
|
}{}
|
|
|
|
err = json.Unmarshal(req.Params, &r)
|
|
|
|
if err == nil {
|
|
|
|
rv, err = s.getTransaction(r.Txid)
|
|
|
|
}
|
|
|
|
return
|
|
|
|
},
|
2019-03-01 07:37:38 -07:00
|
|
|
"getTransactionSpecific": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
|
|
|
r := struct {
|
|
|
|
Txid string `json:"txid"`
|
|
|
|
}{}
|
|
|
|
err = json.Unmarshal(req.Params, &r)
|
|
|
|
if err == nil {
|
|
|
|
rv, err = s.getTransactionSpecific(r.Txid)
|
|
|
|
}
|
|
|
|
return
|
|
|
|
},
|
2018-12-18 01:52:46 -07:00
|
|
|
"estimateFee": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
|
|
|
return s.estimateFee(c, req.Params)
|
|
|
|
},
|
2018-12-09 16:26:04 -07:00
|
|
|
"sendTransaction": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
|
|
|
r := struct {
|
|
|
|
Hex string `json:"hex"`
|
|
|
|
}{}
|
|
|
|
err = json.Unmarshal(req.Params, &r)
|
|
|
|
if err == nil {
|
|
|
|
rv, err = s.sendTransaction(r.Hex)
|
|
|
|
}
|
|
|
|
return
|
|
|
|
},
|
|
|
|
"subscribeNewBlock": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
2018-12-11 03:50:43 -07:00
|
|
|
return s.subscribeNewBlock(c, req)
|
2018-12-09 16:26:04 -07:00
|
|
|
},
|
|
|
|
"unsubscribeNewBlock": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
2018-12-11 03:50:43 -07:00
|
|
|
return s.unsubscribeNewBlock(c)
|
2018-12-09 16:26:04 -07:00
|
|
|
},
|
2018-12-11 03:50:43 -07:00
|
|
|
"subscribeAddresses": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
|
|
|
ad, err := s.unmarshalAddresses(req.Params)
|
2018-12-10 09:22:37 -07:00
|
|
|
if err == nil {
|
2018-12-11 03:50:43 -07:00
|
|
|
rv, err = s.subscribeAddresses(c, ad, req)
|
2018-12-10 09:22:37 -07:00
|
|
|
}
|
|
|
|
return
|
|
|
|
},
|
2018-12-11 03:50:43 -07:00
|
|
|
"unsubscribeAddresses": func(s *WebsocketServer, c *websocketChannel, req *websocketReq) (rv interface{}, err error) {
|
|
|
|
return s.unsubscribeAddresses(c)
|
2018-12-10 09:22:37 -07:00
|
|
|
},
|
2018-12-09 16:26:04 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func (s *WebsocketServer) onRequest(c *websocketChannel, req *websocketReq) {
|
|
|
|
var err error
|
|
|
|
var data interface{}
|
|
|
|
defer func() {
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
glog.Error("Client ", c.id, ", onRequest ", req.Method, " recovered from panic: ", r)
|
|
|
|
debug.PrintStack()
|
|
|
|
e := resultError{}
|
|
|
|
e.Error.Message = "Internal error"
|
|
|
|
data = e
|
|
|
|
}
|
|
|
|
// nil data means no response
|
|
|
|
if data != nil {
|
|
|
|
c.out <- &websocketRes{
|
|
|
|
ID: req.ID,
|
|
|
|
Data: data,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}()
|
|
|
|
t := time.Now()
|
|
|
|
defer s.metrics.WebsocketReqDuration.With(common.Labels{"method": req.Method}).Observe(float64(time.Since(t)) / 1e3) // in microseconds
|
|
|
|
f, ok := requestHandlers[req.Method]
|
|
|
|
if ok {
|
|
|
|
data, err = f(s, c, req)
|
|
|
|
} else {
|
|
|
|
err = errors.New("unknown method")
|
|
|
|
}
|
|
|
|
if err == nil {
|
|
|
|
glog.V(1).Info("Client ", c.id, " onRequest ", req.Method, " success")
|
2019-02-11 03:54:34 -07:00
|
|
|
s.metrics.WebsocketRequests.With(common.Labels{"method": req.Method, "status": "success"}).Inc()
|
2018-12-09 16:26:04 -07:00
|
|
|
} else {
|
|
|
|
glog.Error("Client ", c.id, " onMessage ", req.Method, ": ", errors.ErrorStack(err))
|
2019-02-11 03:54:34 -07:00
|
|
|
s.metrics.WebsocketRequests.With(common.Labels{"method": req.Method, "status": err.Error()}).Inc()
|
2018-12-09 16:26:04 -07:00
|
|
|
e := resultError{}
|
|
|
|
e.Error.Message = err.Error()
|
|
|
|
data = e
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
type accountInfoReq struct {
|
2018-12-14 08:42:35 -07:00
|
|
|
Descriptor string `json:"descriptor"`
|
|
|
|
Details string `json:"details"`
|
2019-03-01 07:25:16 -07:00
|
|
|
Tokens string `json:"tokens"`
|
2018-12-14 08:42:35 -07:00
|
|
|
PageSize int `json:"pageSize"`
|
|
|
|
Page int `json:"page"`
|
|
|
|
FromHeight int `json:"from"`
|
|
|
|
ToHeight int `json:"to"`
|
|
|
|
ContractFilter string `json:"contractFilter"`
|
2018-12-09 16:26:04 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func unmarshalGetAccountInfoRequest(params []byte) (*accountInfoReq, error) {
|
|
|
|
var r accountInfoReq
|
|
|
|
err := json.Unmarshal(params, &r)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
return &r, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s *WebsocketServer) getAccountInfo(req *accountInfoReq) (res *api.Address, err error) {
|
2019-02-28 07:07:07 -07:00
|
|
|
var opt api.AccountDetails
|
2018-12-15 16:26:41 -07:00
|
|
|
switch req.Details {
|
2019-02-12 07:15:10 -07:00
|
|
|
case "tokens":
|
2019-02-28 07:07:07 -07:00
|
|
|
opt = api.AccountDetailsTokens
|
|
|
|
case "tokenBalances":
|
|
|
|
opt = api.AccountDetailsTokenBalances
|
2018-12-15 16:26:41 -07:00
|
|
|
case "txids":
|
2019-02-28 07:07:07 -07:00
|
|
|
opt = api.AccountDetailsTxidHistory
|
2018-12-15 16:26:41 -07:00
|
|
|
case "txs":
|
2019-02-28 07:07:07 -07:00
|
|
|
opt = api.AccountDetailsTxHistory
|
2018-12-15 16:26:41 -07:00
|
|
|
default:
|
2019-02-28 07:07:07 -07:00
|
|
|
opt = api.AccountDetailsBasic
|
2018-12-15 16:26:41 -07:00
|
|
|
}
|
2019-03-01 07:25:16 -07:00
|
|
|
var tokensToReturn api.TokensToReturn
|
|
|
|
switch req.Tokens {
|
|
|
|
case "used":
|
|
|
|
tokensToReturn = api.TokensToReturnUsed
|
|
|
|
case "nonzero":
|
|
|
|
tokensToReturn = api.TokensToReturnNonzeroBalance
|
|
|
|
default:
|
|
|
|
tokensToReturn = api.TokensToReturnDerived
|
|
|
|
}
|
2019-02-11 03:54:34 -07:00
|
|
|
filter := api.AddressFilter{
|
2019-03-01 07:25:16 -07:00
|
|
|
FromHeight: uint32(req.FromHeight),
|
|
|
|
ToHeight: uint32(req.ToHeight),
|
|
|
|
Contract: req.ContractFilter,
|
|
|
|
Vout: api.AddressFilterVoutOff,
|
|
|
|
TokensToReturn: tokensToReturn,
|
2019-02-11 03:54:34 -07:00
|
|
|
}
|
2019-03-14 14:03:08 -06:00
|
|
|
if req.PageSize == 0 {
|
|
|
|
req.PageSize = txsOnPage
|
|
|
|
}
|
2019-02-11 03:54:34 -07:00
|
|
|
a, err := s.api.GetXpubAddress(req.Descriptor, req.Page, req.PageSize, opt, &filter, 0)
|
|
|
|
if err != nil {
|
|
|
|
return s.api.GetAddress(req.Descriptor, req.Page, req.PageSize, opt, &filter)
|
|
|
|
}
|
|
|
|
return a, nil
|
2018-12-15 16:26:41 -07:00
|
|
|
}
|
|
|
|
|
2019-01-14 09:12:33 -07:00
|
|
|
func (s *WebsocketServer) getAccountUtxo(descriptor string) (interface{}, error) {
|
2019-02-11 03:54:34 -07:00
|
|
|
utxo, err := s.api.GetXpubUtxo(descriptor, false, 0)
|
|
|
|
if err != nil {
|
|
|
|
return s.api.GetAddressUtxo(descriptor, false)
|
|
|
|
}
|
|
|
|
return utxo, nil
|
2019-01-14 09:12:33 -07:00
|
|
|
}
|
|
|
|
|
2019-01-16 08:10:30 -07:00
|
|
|
func (s *WebsocketServer) getTransaction(txid string) (interface{}, error) {
|
|
|
|
return s.api.GetTransaction(txid, false, false)
|
|
|
|
}
|
|
|
|
|
2019-03-01 07:37:38 -07:00
|
|
|
func (s *WebsocketServer) getTransactionSpecific(txid string) (interface{}, error) {
|
|
|
|
return s.chain.GetTransactionSpecific(&bchain.Tx{Txid: txid})
|
|
|
|
}
|
|
|
|
|
2018-12-15 16:26:41 -07:00
|
|
|
func (s *WebsocketServer) getInfo() (interface{}, error) {
|
|
|
|
vi := common.GetVersionInfo()
|
|
|
|
height, hash, err := s.db.GetBestBlock()
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
type info struct {
|
|
|
|
Name string `json:"name"`
|
|
|
|
Shortcut string `json:"shortcut"`
|
|
|
|
Decimals int `json:"decimals"`
|
|
|
|
Version string `json:"version"`
|
|
|
|
BestHeight int `json:"bestheight"`
|
|
|
|
BestHash string `json:"besthash"`
|
|
|
|
Block0Hash string `json:"block0hash"`
|
|
|
|
Testnet bool `json:"testnet"`
|
2018-12-09 16:26:04 -07:00
|
|
|
}
|
2018-12-15 16:26:41 -07:00
|
|
|
return &info{
|
|
|
|
Name: s.is.Coin,
|
|
|
|
Shortcut: s.is.CoinShortcut,
|
|
|
|
Decimals: s.chainParser.AmountDecimals(),
|
|
|
|
BestHeight: int(height),
|
|
|
|
BestHash: hash,
|
|
|
|
Version: vi.Version,
|
|
|
|
Block0Hash: s.block0hash,
|
|
|
|
Testnet: s.chain.IsTestnet(),
|
|
|
|
}, nil
|
2018-12-09 16:26:04 -07:00
|
|
|
}
|
|
|
|
|
2019-01-04 08:10:24 -07:00
|
|
|
func (s *WebsocketServer) getBlockHash(height int) (interface{}, error) {
|
|
|
|
h, err := s.db.GetBlockHash(uint32(height))
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
type hash struct {
|
|
|
|
Hash string `json:"hash"`
|
|
|
|
}
|
|
|
|
return &hash{
|
|
|
|
Hash: h,
|
|
|
|
}, nil
|
|
|
|
}
|
|
|
|
|
2018-12-18 01:52:46 -07:00
|
|
|
func (s *WebsocketServer) estimateFee(c *websocketChannel, params []byte) (interface{}, error) {
|
|
|
|
type estimateFeeReq struct {
|
|
|
|
Blocks []int `json:"blocks"`
|
|
|
|
Specific map[string]interface{} `json:"specific"`
|
|
|
|
}
|
|
|
|
type estimateFeeRes struct {
|
|
|
|
FeePerTx string `json:"feePerTx,omitempty"`
|
|
|
|
FeePerUnit string `json:"feePerUnit,omitempty"`
|
|
|
|
FeeLimit string `json:"feeLimit,omitempty"`
|
|
|
|
}
|
|
|
|
var r estimateFeeReq
|
|
|
|
err := json.Unmarshal(params, &r)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
res := make([]estimateFeeRes, len(r.Blocks))
|
|
|
|
if s.chainParser.GetChainType() == bchain.ChainEthereumType {
|
|
|
|
gas, err := s.chain.EthereumTypeEstimateGas(r.Specific)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
sg := strconv.FormatUint(gas, 10)
|
|
|
|
for i, b := range r.Blocks {
|
|
|
|
fee, err := s.chain.EstimateSmartFee(b, true)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
res[i].FeePerUnit = fee.String()
|
|
|
|
res[i].FeeLimit = sg
|
|
|
|
fee.Mul(&fee, new(big.Int).SetUint64(gas))
|
|
|
|
res[i].FeePerTx = fee.String()
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
conservative := true
|
|
|
|
v, ok := r.Specific["conservative"]
|
|
|
|
if ok {
|
|
|
|
vc, ok := v.(bool)
|
|
|
|
if ok {
|
|
|
|
conservative = vc
|
|
|
|
}
|
|
|
|
}
|
|
|
|
txSize := 0
|
|
|
|
v, ok = r.Specific["txsize"]
|
|
|
|
if ok {
|
|
|
|
f, ok := v.(float64)
|
|
|
|
if ok {
|
|
|
|
txSize = int(f)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
for i, b := range r.Blocks {
|
|
|
|
fee, err := s.chain.EstimateSmartFee(b, conservative)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
res[i].FeePerUnit = fee.String()
|
|
|
|
if txSize > 0 {
|
|
|
|
fee.Mul(&fee, big.NewInt(int64(txSize)))
|
|
|
|
fee.Add(&fee, big.NewInt(500))
|
|
|
|
fee.Div(&fee, big.NewInt(1000))
|
|
|
|
res[i].FeePerTx = fee.String()
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return res, nil
|
|
|
|
}
|
|
|
|
|
2018-12-09 16:26:04 -07:00
|
|
|
func (s *WebsocketServer) sendTransaction(tx string) (res resultSendTransaction, err error) {
|
|
|
|
txid, err := s.chain.SendRawTransaction(tx)
|
|
|
|
if err != nil {
|
|
|
|
return res, err
|
|
|
|
}
|
|
|
|
res.Result = txid
|
|
|
|
return
|
|
|
|
}
|
|
|
|
|
2018-12-11 03:50:43 -07:00
|
|
|
type subscriptionResponse struct {
|
|
|
|
Subscribed bool `json:"subscribed"`
|
|
|
|
}
|
|
|
|
|
2018-12-09 16:26:04 -07:00
|
|
|
func (s *WebsocketServer) subscribeNewBlock(c *websocketChannel, req *websocketReq) (res interface{}, err error) {
|
|
|
|
s.newBlockSubscriptionsLock.Lock()
|
|
|
|
defer s.newBlockSubscriptionsLock.Unlock()
|
|
|
|
s.newBlockSubscriptions[c] = req.ID
|
2018-12-11 03:50:43 -07:00
|
|
|
return &subscriptionResponse{true}, nil
|
2018-12-09 16:26:04 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func (s *WebsocketServer) unsubscribeNewBlock(c *websocketChannel) (res interface{}, err error) {
|
|
|
|
s.newBlockSubscriptionsLock.Lock()
|
|
|
|
defer s.newBlockSubscriptionsLock.Unlock()
|
|
|
|
delete(s.newBlockSubscriptions, c)
|
2018-12-11 03:50:43 -07:00
|
|
|
return &subscriptionResponse{false}, nil
|
2018-12-09 16:26:04 -07:00
|
|
|
}
|
|
|
|
|
2018-12-11 03:50:43 -07:00
|
|
|
func (s *WebsocketServer) unmarshalAddresses(params []byte) ([]bchain.AddressDescriptor, error) {
|
2018-12-10 09:22:37 -07:00
|
|
|
r := struct {
|
2018-12-11 03:50:43 -07:00
|
|
|
Addresses []string `json:"addresses"`
|
2018-12-10 09:22:37 -07:00
|
|
|
}{}
|
|
|
|
err := json.Unmarshal(params, &r)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
2018-12-11 03:50:43 -07:00
|
|
|
rv := make([]bchain.AddressDescriptor, len(r.Addresses))
|
|
|
|
for i, a := range r.Addresses {
|
|
|
|
ad, err := s.chainParser.GetAddrDescFromAddress(a)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
rv[i] = ad
|
|
|
|
}
|
|
|
|
return rv, nil
|
2018-12-10 09:22:37 -07:00
|
|
|
}
|
|
|
|
|
2018-12-11 03:50:43 -07:00
|
|
|
func (s *WebsocketServer) subscribeAddresses(c *websocketChannel, addrDesc []bchain.AddressDescriptor, req *websocketReq) (res interface{}, err error) {
|
|
|
|
// unsubscribe all previous subscriptions
|
|
|
|
s.unsubscribeAddresses(c)
|
2018-12-10 09:22:37 -07:00
|
|
|
s.addressSubscriptionsLock.Lock()
|
|
|
|
defer s.addressSubscriptionsLock.Unlock()
|
2018-12-11 03:50:43 -07:00
|
|
|
for i := range addrDesc {
|
|
|
|
ads := string(addrDesc[i])
|
|
|
|
as, ok := s.addressSubscriptions[ads]
|
|
|
|
if !ok {
|
|
|
|
as = make(map[*websocketChannel]string)
|
|
|
|
s.addressSubscriptions[ads] = as
|
|
|
|
}
|
|
|
|
as[c] = req.ID
|
2018-12-10 09:22:37 -07:00
|
|
|
}
|
2018-12-11 03:50:43 -07:00
|
|
|
return &subscriptionResponse{true}, nil
|
2018-12-10 09:22:37 -07:00
|
|
|
}
|
|
|
|
|
2018-12-11 03:50:43 -07:00
|
|
|
// unsubscribeAddresses unsubscribes all address subscriptions by this channel
|
|
|
|
func (s *WebsocketServer) unsubscribeAddresses(c *websocketChannel) (res interface{}, err error) {
|
2018-12-10 09:22:37 -07:00
|
|
|
s.addressSubscriptionsLock.Lock()
|
|
|
|
defer s.addressSubscriptionsLock.Unlock()
|
2018-12-11 03:50:43 -07:00
|
|
|
for _, sa := range s.addressSubscriptions {
|
|
|
|
for sc := range sa {
|
|
|
|
if sc == c {
|
|
|
|
delete(sa, c)
|
|
|
|
}
|
|
|
|
}
|
2018-12-10 09:22:37 -07:00
|
|
|
}
|
2018-12-11 03:50:43 -07:00
|
|
|
return &subscriptionResponse{false}, nil
|
2018-12-10 09:22:37 -07:00
|
|
|
}
|
|
|
|
|
2018-12-09 16:26:04 -07:00
|
|
|
// OnNewBlock is a callback that broadcasts info about new block to subscribed clients
|
|
|
|
func (s *WebsocketServer) OnNewBlock(hash string, height uint32) {
|
|
|
|
s.newBlockSubscriptionsLock.Lock()
|
|
|
|
defer s.newBlockSubscriptionsLock.Unlock()
|
|
|
|
data := struct {
|
|
|
|
Height uint32 `json:"height"`
|
|
|
|
Hash string `json:"hash"`
|
|
|
|
}{
|
|
|
|
Height: height,
|
|
|
|
Hash: hash,
|
|
|
|
}
|
|
|
|
for c, id := range s.newBlockSubscriptions {
|
|
|
|
if c.IsAlive() {
|
|
|
|
c.out <- &websocketRes{
|
|
|
|
ID: id,
|
|
|
|
Data: &data,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
glog.Info("broadcasting new block ", height, " ", hash, " to ", len(s.newBlockSubscriptions), " channels")
|
|
|
|
}
|
2018-12-10 09:22:37 -07:00
|
|
|
|
|
|
|
// OnNewTxAddr is a callback that broadcasts info about a tx affecting subscribed address
|
2018-12-19 02:06:25 -07:00
|
|
|
func (s *WebsocketServer) OnNewTxAddr(tx *bchain.Tx, addrDesc bchain.AddressDescriptor) {
|
2018-12-18 01:52:46 -07:00
|
|
|
// check if there is any subscription but release the lock immediately, GetTransactionFromBchainTx may take some time
|
2018-12-10 09:22:37 -07:00
|
|
|
s.addressSubscriptionsLock.Lock()
|
|
|
|
as, ok := s.addressSubscriptions[string(addrDesc)]
|
|
|
|
s.addressSubscriptionsLock.Unlock()
|
|
|
|
if ok && len(as) > 0 {
|
|
|
|
addr, _, err := s.chainParser.GetAddressesFromAddrDesc(addrDesc)
|
|
|
|
if err != nil {
|
|
|
|
glog.Error("GetAddressesFromAddrDesc error ", err, " for ", addrDesc)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
if len(addr) == 1 {
|
|
|
|
atx, err := s.api.GetTransactionFromBchainTx(tx, 0, false, false)
|
|
|
|
if err != nil {
|
|
|
|
glog.Error("GetTransactionFromBchainTx error ", err, " for ", tx.Txid)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
data := struct {
|
|
|
|
Address string `json:"address"`
|
|
|
|
Tx *api.Tx `json:"tx"`
|
|
|
|
}{
|
|
|
|
Address: addr[0],
|
|
|
|
Tx: atx,
|
|
|
|
}
|
|
|
|
// get the list of subscriptions again, this time keep the lock
|
|
|
|
s.addressSubscriptionsLock.Lock()
|
|
|
|
defer s.addressSubscriptionsLock.Unlock()
|
|
|
|
as, ok = s.addressSubscriptions[string(addrDesc)]
|
|
|
|
if ok {
|
|
|
|
for c, id := range as {
|
|
|
|
if c.IsAlive() {
|
|
|
|
c.out <- &websocketRes{
|
|
|
|
ID: id,
|
|
|
|
Data: &data,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
glog.Info("broadcasting new tx ", tx.Txid, " for addr ", addr[0], " to ", len(as), " channels")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|