312 lines
7.8 KiB
Go
312 lines
7.8 KiB
Go
/*
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* @Author: haodaquan
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* @Date: 2017-06-21 12:56:08
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* @Last Modified by: haodaquan
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* @Last Modified time: 2017-06-21 13:05:57
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*/
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package jobs
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"net"
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"os/exec"
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"runtime/debug"
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"time"
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"github.com/astaxie/beego"
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"github.com/george518/PPGo_Job/models"
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"golang.org/x/crypto/ssh"
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)
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type Job struct {
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id int // 任务ID
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logId int64 // 日志记录ID
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name string // 任务名称
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task *models.Task // 任务对象
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runFunc func(time.Duration) (string, string, error, bool) // 执行函数
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status int // 任务状态，大于0表示正在执行中
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Concurrent bool // 同一个任务是否允许并行执行
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}
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func NewJobFromTask(task *models.Task) (*Job, error) {
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if task.Id < 1 {
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return nil, fmt.Errorf("ToJob: 缺少id")
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}
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//本地程序执行
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if task.ServerId == 0 {
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job := NewCommandJob(task.Id, task.TaskName, task.Command)
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job.task = task
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job.Concurrent = task.Concurrent == 1
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return job, nil
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}
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server, _ := models.TaskServerGetById(task.ServerId)
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if server.Type == 0 {
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//密码验证登录服务器
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job := RemoteCommandJobByPassword(task.Id, task.TaskName, task.Command, server)
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job.task = task
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job.Concurrent = task.Concurrent == 1
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return job, nil
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}
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job := RemoteCommandJob(task.Id, task.TaskName, task.Command, server)
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job.task = task
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job.Concurrent = task.Concurrent == 1
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return job, nil
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}
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func NewCommandJob(id int, name string, command string) *Job {
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job := &Job{
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id: id,
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name: name,
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}
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job.runFunc = func(timeout time.Duration) (string, string, error, bool) {
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bufOut := new(bytes.Buffer)
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bufErr := new(bytes.Buffer)
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//cmd := exec.Command("/bin/bash", "-c", command)
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cmd := exec.Command("sh", "-c", command)
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cmd.Stdout = bufOut
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cmd.Stderr = bufErr
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cmd.Start()
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err, isTimeout := runCmdWithTimeout(cmd, timeout)
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return bufOut.String(), bufErr.String(), err, isTimeout
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}
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return job
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}
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//远程执行任务 密钥验证
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func RemoteCommandJob(id int, name string, command string, servers *models.TaskServer) *Job {
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job := &Job{
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id: id,
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name: name,
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}
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job.runFunc = func(timeout time.Duration) (string, string, error, bool) {
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key, err := ioutil.ReadFile(servers.PrivateKeySrc)
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if err != nil {
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return "", "", err, false
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}
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// Create the Signer for this private key.
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signer, err := ssh.ParsePrivateKey(key)
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if err != nil {
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return "", "", err, false
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}
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addr := fmt.Sprintf("%s:%d", servers.ServerIp, servers.Port)
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config := &ssh.ClientConfig{
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User: servers.ServerAccount,
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Auth: []ssh.AuthMethod{
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// Use the PublicKeys method for remote authentication.
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ssh.PublicKeys(signer),
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},
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//HostKeyCallback: ssh.FixedHostKey(hostKey),
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HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
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return nil
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},
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}
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// Connect to the remote server and perform the SSH handshake.47.93.220.5
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client, err := ssh.Dial("tcp", addr, config)
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if err != nil {
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return "", "", err, false
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}
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defer client.Close()
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session, err := client.NewSession()
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if err != nil {
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return "", "", err, false
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}
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defer session.Close()
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// Once a Session is created, you can execute a single command on
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// the remote side using the Run method.
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var b bytes.Buffer
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var c bytes.Buffer
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session.Stdout = &b
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session.Stderr = &c
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//session.Output(command)
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if err := session.Run(command); err != nil {
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return "", "", err, false
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}
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isTimeout := false
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return b.String(), c.String(), err, isTimeout
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}
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return job
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}
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func RemoteCommandJobByPassword(id int, name string, command string, servers *models.TaskServer) *Job {
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var (
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auth []ssh.AuthMethod
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addr string
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clientConfig *ssh.ClientConfig
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client *ssh.Client
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session *ssh.Session
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err error
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)
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job := &Job{
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id: id,
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name: name,
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}
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job.runFunc = func(timeout time.Duration) (string, string, error, bool) {
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// get auth method
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auth = make([]ssh.AuthMethod, 0)
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auth = append(auth, ssh.Password(servers.Password))
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clientConfig = &ssh.ClientConfig{
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User: servers.ServerAccount,
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Auth: auth,
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HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
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return nil
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},
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//Timeout: 1000 * time.Second,
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}
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// connet to ssh
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addr = fmt.Sprintf("%s:%d", servers.ServerIp, servers.Port)
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if client, err = ssh.Dial("tcp", addr, clientConfig); err != nil {
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return "", "", err, false
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}
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defer client.Close()
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// create session
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if session, err = client.NewSession(); err != nil {
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return "", "", err, false
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}
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var b bytes.Buffer
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var c bytes.Buffer
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session.Stdout = &b
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session.Stderr = &c
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//session.Output(command)
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if err := session.Run(command); err != nil {
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return "", "", err, false
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}
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isTimeout := false
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return b.String(), c.String(), err, isTimeout
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}
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return job
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}
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func (j *Job) Status() int {
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return j.status
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}
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func (j *Job) GetName() string {
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return j.name
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}
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func (j *Job) GetId() int {
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return j.id
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}
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func (j *Job) GetLogId() int64 {
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return j.logId
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}
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func (j *Job) Run() {
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if !j.Concurrent && j.status > 0 {
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beego.Warn(fmt.Sprintf("任务[%d]上一次执行尚未结束，本次被忽略。", j.id))
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return
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}
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defer func() {
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if err := recover(); err != nil {
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beego.Error(err, "\n", string(debug.Stack()))
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}
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}()
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if workPool != nil {
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workPool <- true
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defer func() {
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<-workPool
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}()
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}
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beego.Debug(fmt.Sprintf("开始执行任务: %d", j.id))
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j.status++
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defer func() {
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j.status--
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}()
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t := time.Now()
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timeout := time.Duration(time.Hour * 24)
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if j.task.Timeout > 0 {
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timeout = time.Second * time.Duration(j.task.Timeout)
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}
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cmdOut, cmdErr, err, isTimeout := j.runFunc(timeout)
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ut := time.Now().Sub(t) / time.Millisecond
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// 插入日志
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log := new(models.TaskLog)
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log.TaskId = j.id
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log.Output = cmdOut
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log.Error = cmdErr
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log.ProcessTime = int(ut)
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log.CreateTime = t.Unix()
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if isTimeout {
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log.Status = models.TASK_TIMEOUT
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log.Error = fmt.Sprintf("任务执行超过 %d 秒\n----------------------\n%s\n", int(timeout/time.Second), cmdErr)
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} else if err != nil {
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log.Status = models.TASK_ERROR
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log.Error = err.Error() + ":" + cmdErr
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}
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j.logId, _ = models.TaskLogAdd(log)
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// 更新上次执行时间
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j.task.PrevTime = t.Unix()
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j.task.ExecuteTimes++
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j.task.Update("PrevTime", "ExecuteTimes")
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// 发送邮件通知
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//if (j.task.Notify == 1 && err != nil) || j.task.Notify == 2 {
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// user, uerr := models.UserGetById(j.task.UserId)
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// if uerr != nil {
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// return
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// }
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//
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// var title string
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//
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// data := make(map[string]interface{})
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// data["task_id"] = j.task.Id
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// data["username"] = user.UserName
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// data["task_name"] = j.task.TaskName
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// data["start_time"] = beego.Date(t, "Y-m-d H:i:s")
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// data["process_time"] = float64(ut) / 1000
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// data["output"] = cmdOut
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//
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// if isTimeout {
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// title = fmt.Sprintf("任务执行结果通知 #%d: %s", j.task.Id, "超时")
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// data["status"] = fmt.Sprintf("超时（%d秒）", int(timeout/time.Second))
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// } else if err != nil {
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// title = fmt.Sprintf("任务执行结果通知 #%d: %s", j.task.Id, "失败")
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// data["status"] = "失败（" + err.Error() + "）"
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// } else {
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// title = fmt.Sprintf("任务执行结果通知 #%d: %s", j.task.Id, "成功")
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// data["status"] = "成功"
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// }
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//
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// content := new(bytes.Buffer)
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// mailTpl.Execute(content, data)
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// ccList := make([]string, 0)
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// if j.task.NotifyEmail != "" {
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// ccList = strings.Split(j.task.NotifyEmail, "\n")
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// }
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// if !mail.SendMail(user.Email, user.UserName, title, content.String(), ccList) {
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// beego.Error("发送邮件超时：", user.Email)
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// }
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//}
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}
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