352 lines
12 KiB
Go
352 lines
12 KiB
Go
// Copyright 2017-2021 DERO Project. All rights reserved.
|
|
// Use of this source code in any form is governed by RESEARCH license.
|
|
// license can be found in the LICENSE file.
|
|
// GPG: 0F39 E425 8C65 3947 702A 8234 08B2 0360 A03A 9DE8
|
|
//
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
package main
|
|
|
|
import "io"
|
|
import "net"
|
|
import "fmt"
|
|
import "net/http"
|
|
import "time"
|
|
import "sync"
|
|
import "sync/atomic"
|
|
import "context"
|
|
import "strings"
|
|
import "runtime/debug"
|
|
|
|
import "github.com/romana/rlog"
|
|
|
|
import "github.com/deroproject/derohe/config"
|
|
import "github.com/deroproject/derohe/globals"
|
|
import "github.com/deroproject/derohe/blockchain"
|
|
import "github.com/deroproject/derohe/glue/rwc"
|
|
|
|
import log "github.com/sirupsen/logrus"
|
|
import "github.com/gorilla/websocket"
|
|
|
|
import "github.com/creachadair/jrpc2"
|
|
import "github.com/creachadair/jrpc2/handler"
|
|
import "github.com/creachadair/jrpc2/channel"
|
|
import "github.com/creachadair/jrpc2/server"
|
|
import "github.com/creachadair/jrpc2/jhttp"
|
|
|
|
/* this file implements the rpcserver api, so as wallet and block explorer tools can work without migration */
|
|
|
|
// all components requiring access to blockchain must use , this struct to communicate
|
|
// this structure must be update while mutex
|
|
type RPCServer struct {
|
|
srv *http.Server
|
|
mux *http.ServeMux
|
|
Exit_Event chan bool // blockchain is shutting down and we must quit ASAP
|
|
sync.RWMutex
|
|
}
|
|
|
|
//var Exit_In_Progress bool
|
|
var chain *blockchain.Blockchain
|
|
var logger *log.Entry
|
|
|
|
var client_connections sync.Map
|
|
|
|
var options = &jrpc2.ServerOptions{AllowPush: true}
|
|
|
|
// this function triggers notification to all clients that they should repoll
|
|
func Notify_Block_Addition() {
|
|
|
|
for {
|
|
chain.RPC_NotifyNewBlock.L.Lock()
|
|
chain.RPC_NotifyNewBlock.Wait()
|
|
chain.RPC_NotifyNewBlock.L.Unlock()
|
|
client_connections.Range(func(key, value interface{}) bool {
|
|
|
|
key.(*jrpc2.Server).Notify(context.Background(), "Repoll", nil)
|
|
return true
|
|
})
|
|
}
|
|
}
|
|
|
|
func Notify_Height_Changes() {
|
|
|
|
for {
|
|
chain.RPC_NotifyNewBlock.L.Lock()
|
|
chain.RPC_NotifyNewBlock.Wait()
|
|
chain.RPC_NotifyNewBlock.L.Unlock()
|
|
client_connections.Range(func(key, value interface{}) bool {
|
|
|
|
key.(*jrpc2.Server).Notify(context.Background(), "HRepoll", nil)
|
|
return true
|
|
})
|
|
}
|
|
}
|
|
|
|
func RPCServer_Start(params map[string]interface{}) (*RPCServer, error) {
|
|
|
|
var err error
|
|
var r RPCServer
|
|
|
|
_ = err
|
|
|
|
r.Exit_Event = make(chan bool)
|
|
|
|
logger = globals.Logger.WithFields(log.Fields{"com": "RPC"}) // all components must use this logger
|
|
chain = params["chain"].(*blockchain.Blockchain)
|
|
|
|
/*
|
|
// test whether chain is okay
|
|
if chain.Get_Height() == 0 {
|
|
return nil, fmt.Errorf("Chain DOES NOT have genesis block")
|
|
}
|
|
*/
|
|
|
|
go r.Run()
|
|
logger.Infof("RPC/Websocket server started")
|
|
atomic.AddUint32(&globals.Subsystem_Active, 1) // increment subsystem
|
|
|
|
return &r, nil
|
|
}
|
|
|
|
// shutdown the rpc server component
|
|
func (r *RPCServer) RPCServer_Stop() {
|
|
r.Lock()
|
|
defer r.Unlock()
|
|
|
|
close(r.Exit_Event) // send signal to all connections to exit
|
|
|
|
if r.srv != nil {
|
|
r.srv.Shutdown(context.Background()) // shutdown the server
|
|
}
|
|
// TODO we must wait for connections to kill themselves
|
|
time.Sleep(1 * time.Second)
|
|
logger.Infof("RPC Shutdown")
|
|
atomic.AddUint32(&globals.Subsystem_Active, ^uint32(0)) // this decrement 1 fom subsystem
|
|
}
|
|
|
|
// setup handlers
|
|
func (r *RPCServer) Run() {
|
|
|
|
/*
|
|
mr := jsonrpc.NewMethodRepository()
|
|
|
|
if err := mr.RegisterMethod("Main.Echo", EchoHandler{}, EchoParams{}, EchoResult{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
// install getblockcount handler
|
|
if err := mr.RegisterMethod("getblockcount", GetBlockCount_Handler{}, structures.GetBlockCount_Params{}, structures.GetBlockCount_Result{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
// install on_getblockhash
|
|
if err := mr.RegisterMethod("on_getblockhash", On_GetBlockHash_Handler{}, structures.On_GetBlockHash_Params{}, structures.On_GetBlockHash_Result{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
// install getblocktemplate handler
|
|
//if err := mr.RegisterMethod("getblocktemplate", GetBlockTemplate_Handler{}, structures.GetBlockTemplate_Params{}, structures.GetBlockTemplate_Result{}); err != nil {
|
|
// log.Fatalln(err)
|
|
//}
|
|
|
|
// submitblock handler
|
|
if err := mr.RegisterMethod("submitblock", SubmitBlock_Handler{}, structures.SubmitBlock_Params{}, structures.SubmitBlock_Result{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
if err := mr.RegisterMethod("getlastblockheader", GetLastBlockHeader_Handler{}, structures.GetLastBlockHeader_Params{}, structures.GetLastBlockHeader_Result{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
if err := mr.RegisterMethod("getblockheaderbyhash", GetBlockHeaderByHash_Handler{}, structures.GetBlockHeaderByHash_Params{}, structures.GetBlockHeaderByHash_Result{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
//if err := mr.RegisterMethod("getblockheaderbyheight", GetBlockHeaderByHeight_Handler{}, structures.GetBlockHeaderByHeight_Params{}, structures.GetBlockHeaderByHeight_Result{}); err != nil {
|
|
// log.Fatalln(err)
|
|
//}
|
|
|
|
if err := mr.RegisterMethod("getblockheaderbytopoheight", GetBlockHeaderByTopoHeight_Handler{}, structures.GetBlockHeaderByTopoHeight_Params{}, structures.GetBlockHeaderByHeight_Result{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
if err := mr.RegisterMethod("getblock", GetBlock_Handler{}, structures.GetBlock_Params{}, structures.GetBlock_Result{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
if err := mr.RegisterMethod("get_info", GetInfo_Handler{}, structures.GetInfo_Params{}, structures.GetInfo_Result{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
if err := mr.RegisterMethod("getencryptedbalance", GetEncryptedBalance_Handler{}, structures.GetEncryptedBalance_Params{}, structures.GetEncryptedBalance_Result{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
if err := mr.RegisterMethod("gettxpool", GetTxPool_Handler{}, structures.GetTxPool_Params{}, structures.GetTxPool_Result{}); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
*/
|
|
// create a new mux
|
|
r.mux = http.NewServeMux()
|
|
|
|
default_address := "127.0.0.1:" + fmt.Sprintf("%d", config.Mainnet.RPC_Default_Port)
|
|
if !globals.IsMainnet() {
|
|
default_address = "127.0.0.1:" + fmt.Sprintf("%d", config.Testnet.RPC_Default_Port)
|
|
}
|
|
|
|
if _, ok := globals.Arguments["--rpc-bind"]; ok && globals.Arguments["--rpc-bind"] != nil {
|
|
addr, err := net.ResolveTCPAddr("tcp", globals.Arguments["--rpc-bind"].(string))
|
|
if err != nil {
|
|
logger.Warnf("--rpc-bind address is invalid, err = %s", err)
|
|
} else {
|
|
if addr.Port == 0 {
|
|
logger.Infof("RPC server is disabled, No ports will be opened for RPC")
|
|
return
|
|
} else {
|
|
default_address = addr.String()
|
|
}
|
|
}
|
|
}
|
|
|
|
logger.Infof("RPC will listen on %s", default_address)
|
|
r.Lock()
|
|
r.srv = &http.Server{Addr: default_address, Handler: r.mux}
|
|
r.Unlock()
|
|
|
|
r.mux.HandleFunc("/json_rpc", translate_http_to_jsonrpc_and_vice_versa)
|
|
r.mux.HandleFunc("/ws", ws_handler)
|
|
r.mux.HandleFunc("/", hello)
|
|
//r.mux.Handle("/json_rpc", mr)
|
|
|
|
// handle nasty http requests
|
|
//r.mux.HandleFunc("/getheight", getheight)
|
|
|
|
//if DEBUG_MODE {
|
|
// r.mux.HandleFunc("/debug/pprof/", pprof.Index)
|
|
|
|
// Register pprof handlers individually if required
|
|
/* r.mux.HandleFunc("/debug/pprof/", pprof.Index)
|
|
r.mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
|
|
r.mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
|
|
r.mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
|
|
r.mux.HandleFunc("/debug/pprof/trace", pprof.Trace)
|
|
*/
|
|
|
|
/*
|
|
// Register pprof handlers individually if required
|
|
r.mux.HandleFunc("/cdebug/pprof/", pprof.Index)
|
|
r.mux.HandleFunc("/cdebug/pprof/cmdline", pprof.Cmdline)
|
|
r.mux.HandleFunc("/cdebug/pprof/profile", pprof.Profile)
|
|
r.mux.HandleFunc("/cdebug/pprof/symbol", pprof.Symbol)
|
|
r.mux.HandleFunc("/cdebug/pprof/trace", pprof.Trace)
|
|
*/
|
|
|
|
// register metrics handler
|
|
// r.mux.HandleFunc("/metrics", prometheus.InstrumentHandler("dero", promhttp.HandlerFor(metrics.Registry, promhttp.HandlerOpts{})))
|
|
|
|
//}
|
|
|
|
//r.mux.HandleFunc("/json_rpc/debug", mr.ServeDebug)
|
|
|
|
go Notify_Block_Addition() // process all blocks
|
|
go Notify_Height_Changes() // gives notification of changed height
|
|
if err := r.srv.ListenAndServe(); err != http.ErrServerClosed {
|
|
logger.Warnf("ERR listening to address err %s", err)
|
|
}
|
|
|
|
}
|
|
|
|
func hello(w http.ResponseWriter, r *http.Request) {
|
|
io.WriteString(w, "DERO BLOCKCHAIN Hello world!")
|
|
}
|
|
|
|
var upgrader = websocket.Upgrader{CheckOrigin: func(r *http.Request) bool { return true }} // use default options
|
|
|
|
func ws_handler(w http.ResponseWriter, r *http.Request) {
|
|
|
|
var ws_server *jrpc2.Server
|
|
defer func() {
|
|
|
|
// safety so if anything wrong happens, verification fails
|
|
if r := recover(); r != nil {
|
|
logger.Warnf("Recovered while processing websocket request, Stack trace below ")
|
|
logger.Warnf("Stack trace \n%s", debug.Stack())
|
|
}
|
|
if ws_server != nil {
|
|
client_connections.Delete(ws_server)
|
|
}
|
|
|
|
}()
|
|
|
|
c, err := upgrader.Upgrade(w, r, nil)
|
|
if err != nil {
|
|
rlog.Warnf("upgrade:", err)
|
|
return
|
|
}
|
|
|
|
defer c.Close()
|
|
input_output := rwc.New(c)
|
|
ws_server = jrpc2.NewServer(assigner, options).Start(channel.RawJSON(input_output, input_output))
|
|
client_connections.Store(ws_server, 1)
|
|
ws_server.Wait()
|
|
|
|
}
|
|
|
|
var assigner = handler.ServiceMap{
|
|
"DAEMON": handler.NewService(DAEMON_RPC_APIS{}),
|
|
"DERO": handler.NewService(DERO_RPC_APIS{}),
|
|
}
|
|
|
|
type DAEMON_RPC_APIS struct{} // exports daemon status and other RPC apis
|
|
|
|
func (DAEMON_RPC_APIS) Echo(ctx context.Context, args []string) string {
|
|
return "DAEMON " + strings.Join(args, " ")
|
|
}
|
|
|
|
type DERO_RPC_APIS struct{} // exports DERO specific apis, such as transaction
|
|
|
|
// used to verify whether the connection is alive
|
|
func (DERO_RPC_APIS) Ping(ctx context.Context) string {
|
|
return "Pong "
|
|
}
|
|
|
|
func (DERO_RPC_APIS) Echo(ctx context.Context, args []string) string {
|
|
return "DERO " + strings.Join(args, " ")
|
|
}
|
|
|
|
//var internal_server = server.NewLocal(assigner,nil) // Use DERO.GetInfo names
|
|
var internal_server = server.NewLocal(historical_apis, nil) // uses traditional "getinfo" for compatibility reasons
|
|
// Bridge HTTP to the JSON-RPC server.
|
|
var bridge = jhttp.NewBridge(internal_server.Client)
|
|
|
|
var dero_apis DERO_RPC_APIS
|
|
|
|
var historical_apis = handler.Map{"getinfo": handler.New(dero_apis.GetInfo),
|
|
"get_info": handler.New(dero_apis.GetInfo), // this is just an alias to above
|
|
"getblock": handler.New(dero_apis.GetBlock),
|
|
"getblockheaderbytopoheight": handler.New(dero_apis.GetBlockHeaderByTopoHeight),
|
|
"getblockheaderbyhash": handler.New(dero_apis.GetBlockHeaderByHash),
|
|
"gettxpool": handler.New(dero_apis.GetTxPool),
|
|
"getrandomaddress": handler.New(dero_apis.GetRandomAddress),
|
|
"gettransactions": handler.New(dero_apis.GetTransaction),
|
|
"sendrawtransaction": handler.New(dero_apis.SendRawTransaction),
|
|
"submitblock": handler.New(dero_apis.SubmitBlock),
|
|
"getheight": handler.New(dero_apis.GetHeight),
|
|
"getblockcount": handler.New(dero_apis.GetBlockCount),
|
|
"getlastblockheader": handler.New(dero_apis.GetLastBlockHeader),
|
|
"getblocktemplate": handler.New(dero_apis.GetBlockTemplate),
|
|
"getencryptedbalance": handler.New(dero_apis.GetEncryptedBalance)}
|
|
|
|
func translate_http_to_jsonrpc_and_vice_versa(w http.ResponseWriter, r *http.Request) {
|
|
bridge.ServeHTTP(w, r)
|
|
}
|