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task.go
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task.go
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package pkg
import (
"context"
"errors"
"fmt"
"io"
"log/slog"
"net/http"
"os/exec"
"strings"
"time"
//"github.com/mss-boot-io/mss-boot/proto"
"golang.org/x/net/websocket"
"google.golang.org/grpc/metadata"
)
/*
* @Author: lwnmengjing<lwnmengjing@qq.com>
* @Date: 2023/12/5 18:39:41
* @Last Modified by: lwnmengjing<lwnmengjing@qq.com>
* @Last Modified time: 2023/12/5 18:39:41
*/
type Task struct {
ID string
Name string
Endpoint string
Method string
Command string
Args []string
Body io.Reader
Python string
Writer io.Writer
Metadata map[string]string
Timeout time.Duration
}
func (t *Task) Run() error {
ctx := metadata.AppendToOutgoingContext(context.TODO(), "taskID", t.ID)
for k, v := range t.Metadata {
ctx = metadata.AppendToOutgoingContext(ctx, k, v)
}
ctx, cancel := context.WithTimeout(ctx, t.Timeout)
defer cancel()
// script
if t.Endpoint == "" {
//exec script
cmd := exec.Command(t.Command, t.Args...)
cmd.WaitDelay = t.Timeout
cmd.Stdout = t.Writer
cmd.Stderr = t.Writer
err := cmd.Run()
if err != nil {
slog.Error("task run error", slog.Any("err", err))
return err
}
return nil
}
// grpc or grpcs
if strings.Contains(t.Endpoint, "grpc://") ||
strings.Contains(t.Endpoint, "grpcs://") {
return fmt.Errorf("not support grpc")
//exec grpc
//conn, err := grpc.Dial(t.Endpoint, grpc.WithTransportCredentials(insecure.NewCredentials()))
//if err != nil {
// slog.Error("task grpc dial error", slog.Any("err", err))
// return err
//}
//defer conn.Close()
//stream, err := proto.NewTaskClient(conn).Exec(ctx, &proto.ExecRequest{
// Id: t.ID,
// Name: &t.Name,
// Command: t.Command,
// Args: t.Args,
//})
//for {
// resp, err1 := stream.Recv()
// if err1 != nil {
// slog.Error("task grpc exec error", slog.Any("err", err))
// break
// }
// if resp == nil || len(resp.Defines) == 0 {
// _, err1 = t.Writer.Write(resp.Defines)
// if err1 != nil {
// slog.Error("task grpc write error", slog.Any("err", err))
// break
// }
// }
//}
//return nil
}
//http or https
if strings.Contains(t.Endpoint, "http://") ||
strings.Contains(t.Endpoint, "https://") {
var body io.Reader
switch t.Method {
case http.MethodPut, http.MethodPost:
body = t.Body
}
req, err := http.NewRequest(t.Method, t.Endpoint, body)
if err != nil {
slog.Error("task http new request error", slog.Any("err", err))
return err
}
req.Header.Set("Content-Type", "application/json")
for k, v := range t.Metadata {
req.Header.Set(k, v)
}
client := &http.Client{
Timeout: t.Timeout,
}
resp, err := client.Do(req)
if err != nil {
slog.Error("task http do error", slog.Any("err", err))
return err
}
defer resp.Body.Close()
_, err = io.Copy(t.Writer, resp.Body)
if err != nil {
slog.Error("task http copy error", slog.Any("err", err))
return err
}
return nil
}
// ws or wss
if strings.Contains(t.Endpoint, "ws://") ||
strings.Contains(t.Endpoint, "wss://") {
var protocol, origin string
if t.Metadata != nil {
protocol, _ = t.Metadata["protocol"]
origin, _ = t.Metadata["origin"]
}
//new websocket
conn, err := websocket.Dial(t.Endpoint, protocol, origin)
if err != nil {
slog.Error("task websocket dial error", slog.Any("err", err))
return err
}
defer conn.Close()
// Handle incoming messages
go func(w io.Writer) {
for {
var message []byte
err1 := websocket.Message.Receive(conn, &message)
if err1 != nil {
if errors.Is(err1, io.EOF) {
break
}
slog.Error("task websocket receive error", slog.Any("err", err))
break
}
_, err1 = w.Write(message)
if err1 != nil {
if errors.Is(err1, io.EOF) {
break
}
slog.Error("task websocket write error", slog.Any("err", err))
break
}
}
}(t.Writer)
<-time.NewTimer(t.Timeout).C
return nil
}
slog.Error("not support", slog.String("endpoint", t.Endpoint))
return fmt.Errorf("not support")
}