package util import ( "encoding/base64" "encoding/json" "errors" "fmt" "io" "io/ioutil" "net" "net/http" "net/url" "strings" "time" "github.com/fatedier/frp/client" ) func GetProxyStatus(statusAddr string, user string, passwd string, name string) (status *client.ProxyStatusResp, err error) { req, err := http.NewRequest("GET", "http://"+statusAddr+"/api/status", nil) if err != nil { return status, err } authStr := "Basic " + base64.StdEncoding.EncodeToString([]byte(user+":"+passwd)) req.Header.Add("Authorization", authStr) resp, err := http.DefaultClient.Do(req) if err != nil { return status, err } defer resp.Body.Close() if resp.StatusCode != 200 { return status, fmt.Errorf("admin api status code [%d]", resp.StatusCode) } body, err := ioutil.ReadAll(resp.Body) if err != nil { return status, err } allStatus := &client.StatusResp{} err = json.Unmarshal(body, &allStatus) if err != nil { return status, fmt.Errorf("unmarshal http response error: %s", strings.TrimSpace(string(body))) } for _, s := range allStatus.Tcp { if s.Name == name { return &s, nil } } for _, s := range allStatus.Udp { if s.Name == name { return &s, nil } } for _, s := range allStatus.Http { if s.Name == name { return &s, nil } } for _, s := range allStatus.Https { if s.Name == name { return &s, nil } } for _, s := range allStatus.Stcp { if s.Name == name { return &s, nil } } for _, s := range allStatus.Xtcp { if s.Name == name { return &s, nil } } for _, s := range allStatus.Sudp { if s.Name == name { return &s, nil } } return status, errors.New("no proxy status found") } func ReloadConf(reloadAddr string, user string, passwd string) error { req, err := http.NewRequest("GET", "http://"+reloadAddr+"/api/reload", nil) if err != nil { return err } authStr := "Basic " + base64.StdEncoding.EncodeToString([]byte(user+":"+passwd)) req.Header.Add("Authorization", authStr) resp, err := http.DefaultClient.Do(req) if err != nil { return err } defer resp.Body.Close() if resp.StatusCode != 200 { return fmt.Errorf("admin api status code [%d]", resp.StatusCode) } io.Copy(ioutil.Discard, resp.Body) return nil } func SendTcpMsg(addr string, msg string) (res string, err error) { c, err := net.Dial("tcp", addr) if err != nil { err = fmt.Errorf("connect to tcp server error: %v", err) return } defer c.Close() return SendTcpMsgByConn(c, msg) } func SendTcpMsgByConn(c net.Conn, msg string) (res string, err error) { timer := time.Now().Add(5 * time.Second) c.SetDeadline(timer) c.Write([]byte(msg)) buf := make([]byte, 2048) n, errRet := c.Read(buf) if errRet != nil { err = fmt.Errorf("read from tcp server error: %v", errRet) return } return string(buf[:n]), nil } func SendUdpMsg(addr string, msg string) (res string, err error) { udpAddr, errRet := net.ResolveUDPAddr("udp", addr) if errRet != nil { err = fmt.Errorf("resolve udp addr error: %v", err) return } conn, errRet := net.DialUDP("udp", nil, udpAddr) if errRet != nil { err = fmt.Errorf("dial udp server error: %v", err) return } defer conn.Close() _, err = conn.Write([]byte(msg)) if err != nil { err = fmt.Errorf("write to udp server error: %v", err) return } buf := make([]byte, 2048) n, errRet := conn.Read(buf) if errRet != nil { err = fmt.Errorf("read from udp server error: %v", err) return } return string(buf[:n]), nil } func SendHttpMsg(method, urlStr string, host string, headers map[string]string, proxy string) (code int, body string, header http.Header, err error) { req, errRet := http.NewRequest(method, urlStr, nil) if errRet != nil { err = errRet return } if host != "" { req.Host = host } for k, v := range headers { req.Header.Set(k, v) } tr := &http.Transport{ DialContext: (&net.Dialer{ Timeout: 30 * time.Second, KeepAlive: 30 * time.Second, DualStack: true, }).DialContext, MaxIdleConns: 100, IdleConnTimeout: 90 * time.Second, TLSHandshakeTimeout: 10 * time.Second, ExpectContinueTimeout: 1 * time.Second, } if len(proxy) != 0 { tr.Proxy = func(req *http.Request) (*url.URL, error) { return url.Parse(proxy) } } client := http.Client{ Transport: tr, } resp, errRet := client.Do(req) if errRet != nil { err = errRet return } code = resp.StatusCode header = resp.Header buf, errRet := ioutil.ReadAll(resp.Body) if errRet != nil { err = errRet return } body = string(buf) return } func BasicAuth(username, passwd string) string { auth := username + ":" + passwd return "Basic " + base64.StdEncoding.EncodeToString([]byte(auth)) }