/
main.go
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/
main.go
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// Copyright Fuzamei Corp. 2018 All Rights Reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"flag"
"fmt"
"io"
"net"
"net/http"
"net/rpc"
"net/rpc/jsonrpc"
"os"
"path/filepath"
"strings"
l "github.com/33cn/chain33/common/log/log15"
tml "github.com/BurntSushi/toml"
"github.com/rs/cors"
"github.com/33cn/plugin/plugin/dapp/token/cmd/signatory-server/signatory"
)
var (
log = l.New("module", "signatory")
configPath = flag.String("f", "signatory.toml", "configfile")
)
// 独立的服务, 提供两个功能
// 1. 帮忙做审核token的交易签名
// 1. a帐号有审核的权限, 客服核完需要用他的私钥对审核交易进行签名
// 1. 输入是生成好的, 选择输入 owner, symbol
// 1. 输出是签过名的交易
// 1. 给指定帐号打手续费 1bty
// 1. 指定帐号
// 1. 输出是签过名的交易
// 实现基于http 的 json rpc
// app-proto
// |
// V
// rpc
// |
// V
// http serve listener --> conn, io -> type HandlerFunc func(ResponseWriter, *Request)
// |
// V
// tcp
type httpConn struct {
in io.Reader
out io.Writer
}
func (c *httpConn) Read(p []byte) (n int, err error) { return c.in.Read(p) }
func (c *httpConn) Write(d []byte) (n int, err error) { return c.out.Write(d) }
func (c *httpConn) Close() error { return nil }
func main() {
d, _ := os.Getwd()
log.Debug("current dir:", "dir", d)
os.Chdir(pwd())
d, _ = os.Getwd()
log.Debug("current dir:", "dir", d)
flag.Parse()
cfg := InitCfg(*configPath)
log.Debug("load config", "cfgPath", *configPath, "wl", cfg.Whitelist, "addr", cfg.JrpcBindAddr, "key", cfg.Privkey)
whitelist := InitWhiteList(cfg)
listen, err := net.Listen("tcp", cfg.JrpcBindAddr)
if err != nil {
panic(err)
}
approver := signatory.Signatory{Privkey: cfg.Privkey}
server := rpc.NewServer()
server.Register(&approver)
var handler http.Handler = http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
//fmt.Println(r.URL, r.Header, r.Body)
if !checkWhitlist(strings.Split(r.RemoteAddr, ":")[0], whitelist) {
log.Error("HandlerFunc", "peer not whitelist", r.RemoteAddr)
w.Write([]byte(`{"errcode":"-1","result":null,"msg":"reject"}`))
return
}
if r.URL.Path == "/" {
serverCodec := jsonrpc.NewServerCodec(&httpConn{in: r.Body, out: w})
w.Header().Set("Content-type", "application/json")
w.WriteHeader(200)
err := server.ServeRequest(serverCodec)
if err != nil {
log.Debug("Error while serving JSON request: %v", err)
return
}
}
})
//co := cors.New(cors.Options{
// AllowedOrigins: []string{"http://foo.com"},
// Debug: true,
//})
co := cors.New(cors.Options{})
handler = co.Handler(handler)
http.Serve(listen, handler)
fmt.Println(handler)
}
// InitCfg 初始化配置
func InitCfg(path string) *signatory.Config {
var cfg signatory.Config
if _, err := tml.DecodeFile(path, &cfg); err != nil {
fmt.Println(err)
os.Exit(0)
}
fmt.Println(cfg)
return &cfg
}
// InitWhiteList 初始化白名单
func InitWhiteList(cfg *signatory.Config) map[string]bool {
whitelist := map[string]bool{}
if len(cfg.Whitelist) == 1 && cfg.Whitelist[0] == "*" {
whitelist["0.0.0.0"] = true
return whitelist
}
for _, addr := range cfg.Whitelist {
log.Debug("initWhitelist", "addr", addr)
whitelist[addr] = true
}
return whitelist
}
func pwd() string {
dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
if err != nil {
panic(err)
}
return dir
}
func checkWhitlist(addr string, whitlist map[string]bool) bool {
if _, ok := whitlist["0.0.0.0"]; ok {
return true
}
if _, ok := whitlist[addr]; ok {
return true
}
return false
}