go语言实现通过FTP库自动上传web日志

// uploadlog
/*
1.本程序主要是实现linux下上传web日志使用，
2.使用方法是 uploadlog logfile_dir
程序只上传当前时间点的日志文件，
*/
package main
import (
  "fmt"
  ftp "github.com/jlaffaye/ftp"
  "log"
  "net"
  "os"
  "path/filepath"
  "strconv"
  "strings"
  "time"
)
func main() {
  fmt.Println("Hello World!")
  if len(os.Args) != 2 {
    log.Fatal("Usage:" + filepath.Base(os.Args[0]) + " log_dir ")
    os.Exit(1)
  }
  //logFileName是将要分析的日志
  logFileName,_,_ := getLogFileName()
  serverIp := getLocalIpAddr()
  //serverName,_ := os.Hostname()
  time.Sleep(time.Duration(90) * time.Second)
  dir := os.Args[1]
  filepath.Walk(dir,func(path string,f os.FileInfo,err error) error {
    if f == nil {
      return err
    }
    if f.IsDir() {
      return nil
    }
    if f.Name() == logFileName {
      fmt.Println(path)
      //pathFields的作用是将日志path解析成一个数据，从而可以得到日志的域名,注意，如果是linux系统，要用“/”
      pathFields := strings.Split(path,"")
      var domainName string
      if len(pathFields) > 3 {
        domainName = pathFields[len(pathFields)-3]
      }
      fmt.Println(time.Now())
      ftpUploadFile("ftp-server-ip:21","logftpuser","ftp-password",path,domainName,serverIp+"_"+logFileName)
      fmt.Println(time.Now())
    }
    return nil
  })
}
func getLogFileName() (string,string,string) {
  MonthTOstr := map[string]string{"January": "01","February": "02","March":   "03","April":   "04","May":    "05","June":   "06","July":   "07","August":  "08","September": "09","October":  "10","November": "11","December": "12"}
  timenow := time.Now()
  year,month,day := timenow.Date()
  //monthStr := month.String()
  hour,_ := timenow.Clock()
  yearStr := strings.TrimLeft(strconv.Itoa(year),"20") //去掉前面的四位数年份如"2014"年的“20”
  dayStr,hourStr := strconv.Itoa(day),strconv.Itoa(hour)
  if day < 10 {
    dayStr = "0" + dayStr
  }
  if hour < 10 {
    hourStr = "0" + hourStr
  }
  fileName := "ex" + yearStr + MonthTOstr[month.String()] + dayStr + hourStr + ".log"
  logDay := yearStr + MonthTOstr[month.String()] + dayStr
  logMonth := yearStr + MonthTOstr[month.String()]
  //monthSrt := strconv.Itoa(timenow.Month())
  //fmt.Println(fileName,logDay)
  return fileName,logDay,logMonth
  //fmt.Println(fileName)
}
func getLocalIpAddr() string {
  //这里使用一个合法的IP就行了，端口随便，即使没有打开也行，也许因为使用UDP，如果用TCP的话，对端不打开就会有问题
  conn,err := net.Dial("udp","192.168.8.51:80")
  if err != nil {
    //fmt.Println(err.Error())
    return "127.0.0.1"
  }
  defer conn.Close()
  //fmt.Println(conn.LocalAddr().String())
  //conn.
  //fmt.Println(strings.Split(conn.LocalAddr().String(),":")[0])
  return strings.Split(conn.LocalAddr().String(),":")[0]
}
func ftpUploadFile(ftpserver,ftpuser,pw,localFile,remoteSavePath,saveName string) {
  ftp,err := ftp.Connect(ftpserver)
  if err != nil {
    fmt.Println(err)
  }
  err = ftp.Login(ftpuser,pw)
  if err != nil {
    fmt.Println(err)
  }
  //注意是 pub/log，不能带“/”开头
  ftp.ChangeDir("pub/log")
  dir,err := ftp.CurrentDir()
  fmt.Println(dir)
  ftp.MakeDir(remoteSavePath)
  ftp.ChangeDir(remoteSavePath)
  dir,_ = ftp.CurrentDir()
  fmt.Println(dir)
  file,err := os.Open(localFile)
  if err != nil {
    fmt.Println(err)
  }
  defer file.Close()
  err = ftp.Stor(saveName,file)
  if err != nil {
    fmt.Println(err)
  }
  ftp.Logout()
  ftp.Quit()
  fmt.Println("success upload file:",localFile)
}