517 lines
12 KiB
Go
517 lines
12 KiB
Go
package main
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import (
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"fmt"
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"net"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"github.com/ncw/swift"
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)
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func main() {
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l, err := net.Listen("tcp4", ":21")
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if err != nil {
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panic(err)
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}
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defer l.Close()
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for {
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conn, err := l.Accept()
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if err != nil {
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fmt.Printf(err.Error())
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continue
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}
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go handle(conn)
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}
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//56652e9028ded5ea5d4772ba80e578ce
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//storage_21_1
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//https://api.clodo.ru/
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}
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func handle(c net.Conn) {
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defer c.Close()
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s, err := NewServer(c)
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if err != nil {
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fmt.Printf(err.Error())
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}
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s.ctrl.PrintfLine("220 %s [%s]", "go-ftp", c.LocalAddr())
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for {
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line, err := s.ctrl.ReadLine()
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if err != nil {
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fmt.Printf(err.Error())
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return
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}
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parts := strings.Fields(line)
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cmd := parts[0]
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params := strings.Join(parts[1:], "")
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switch cmd {
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case "USER":
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s.cmdServerUser(params)
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case "PASS":
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s.cmdServerPass(params)
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case "PWD":
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s.cmdServerPwd(params)
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case "EPSV":
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s.cmdServerEpsv(params)
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case "PASV":
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s.cmdServerPasv(params)
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case "TYPE":
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s.cmdServerType(params)
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case "LIST":
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s.cmdServerList(params)
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case "SYST":
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s.cmdServerSyst(params)
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case "QUIT":
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s.cmdServerQuit(params)
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s.Close()
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return
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case "SIZE":
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s.cmdServerSize(params)
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case "CWD", "XCWD":
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s.cmdServerCwd(params)
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case "RETR":
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s.cmdServerRetr(params)
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case "PORT":
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s.cmdServerPort(params)
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case "EPRT":
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s.cmdServerEprt(params)
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case "LPRT":
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s.cmdServerLprt(params)
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case "LPSV":
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s.cmdServerLpsv(params)
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case "FEAT":
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s.cmdServerFeat(params)
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case "DELE":
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s.cmdServerDele(params)
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case "MKD", "XMKD":
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s.cmdServerMkd(params)
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case "RMD", "XRMD":
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s.cmdServerRmd(params)
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case "STOR":
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s.cmdServerStor(params)
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case "SITE":
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s.cmdServerSite(params)
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default:
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fmt.Printf("%s\n", line)
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}
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}
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}
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func (s *Conn) cmdServerUser(args string) {
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fmt.Printf("cmdServerUser: %s\n", args)
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// s.user = args[0]
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s.ctrl.PrintfLine("331 Password required for %s", args)
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}
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func (s *Conn) cmdServerPass(args string) {
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fmt.Printf("cmdServerPass: %s\n", args)
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// s.token = args[0]
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s.sw = &swift.Connection{UserName: s.user, ApiKey: s.token, AuthUrl: s.api, AuthVersion: 1}
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err := s.sw.Authenticate()
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if err != nil {
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fmt.Printf(err.Error())
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s.ctrl.PrintfLine("530 Login incorrect")
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return
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}
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s.ctrl.PrintfLine("230 Logged on")
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}
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func (s *Conn) cmdServerPwd(args string) {
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fmt.Printf("cmdServerPwd: %s\n", args)
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s.ctrl.PrintfLine(`257 "%s" is current directory.`, s.path)
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}
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func (s *Conn) cmdServerEpsv(args string) {
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fmt.Printf("cmdServerEpsv: %s\n", args)
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if s.ln == nil {
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ln, err := net.Listen("tcp4", fmt.Sprintf(":%d", s.port))
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if err != nil {
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fmt.Printf(err.Error())
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s.ctrl.PrintfLine("425 Data connection failed")
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}
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s.ln = ln
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}
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if s.port == 0 {
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_, port, _ := net.SplitHostPort(s.ln.Addr().String())
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s.port, _ = strconv.Atoi(port)
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}
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s.passive = true
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s.ctrl.PrintfLine("229 Entering Extended Passive Mode (|||%d|)", s.port)
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}
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func (s *Conn) cmdServerType(args string) {
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fmt.Printf("cmdServerType: %s\n", args)
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s.mode = args
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s.ctrl.PrintfLine("200 Type set to %s", s.mode)
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}
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func (s *Conn) cmdServerList(args string) {
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fmt.Printf("cmdServerList: %s\n", args)
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s.ctrl.PrintfLine(`150 Opening data channel for directory listing of "%s"`, args)
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c, err := s.newSocket()
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if err != nil {
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fmt.Printf(err.Error())
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s.ctrl.PrintfLine("425 Data connection failed")
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return
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}
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var files []os.FileInfo
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cnt := ""
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p := ""
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switch args {
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case "-la", "-l", "-a", "-al":
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args = ""
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}
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if len(args) > 0 && args[0] == '/' {
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cnt = strings.Split(args, "/")[1]
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p = strings.Join(strings.Split(args, "/")[2:], "/")
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}
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if cnt == "" && s.path == "/" {
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cnts, err := s.sw.ContainersAll(nil)
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if err != nil {
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fmt.Printf(err.Error())
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return
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}
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files = append(files, NewDirItem(".", 4096, 0), NewDirItem("..", 4096, 0))
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for _, ct := range cnts {
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it := NewDirItem(ct.Name, ct.Bytes, ct.Count)
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files = append(files, it)
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}
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} else {
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opts := &swift.ObjectsOpts{Delimiter: '/'}
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cnt = strings.Split(s.path, "/")[1]
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p = filepath.Clean(filepath.Join(strings.Join(strings.Split(s.path, "/")[2:], "/"), args))
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if p != "." {
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opts.Path = p
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}
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objs, err := s.sw.ObjectsAll(cnt, opts)
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if err != nil {
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fmt.Printf(err.Error())
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return
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}
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files = append(files, NewDirItem(".", 4096, 0), NewDirItem("..", 4096, 0))
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var it os.FileInfo
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for _, obj := range objs {
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if obj.PseudoDirectory || obj.ContentType == "application/directory" {
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it = NewDirItem(obj.Name, obj.Bytes, 1)
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} else {
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it = NewFileItem(obj.Name, obj.Bytes, 1)
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}
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files = append(files, it)
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}
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}
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ls := newListFormatter(files)
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_, err = c.Write([]byte(ls.Detailed()))
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if err != nil {
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fmt.Printf(err.Error())
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}
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c.Close()
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s.ctrl.PrintfLine(`226 Closing data connection`)
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}
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func (s *Conn) cmdServerSyst(args string) {
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fmt.Printf("cmdServerSyst: %s\n", args)
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s.ctrl.PrintfLine("215 UNIX Type: L8")
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}
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func (s *Conn) cmdServerQuit(args string) {
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s.ctrl.PrintfLine("221 Goodbye")
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if s.ln != nil {
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s.ln.Close()
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}
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if s.ctrl != nil {
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s.ctrl.Close()
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}
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}
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func (s *Conn) cmdServerPasv(args string) {
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fmt.Printf("cmdServerPasv: %s\n", args)
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if s.ln == nil {
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ln, err := net.Listen("tcp4", fmt.Sprintf(":%d", s.port))
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if err != nil {
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fmt.Printf("%s\n", err.Error())
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s.ctrl.PrintfLine("425 Data connection failed")
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}
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s.ln = ln
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}
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host, port, _ := net.SplitHostPort(s.ln.Addr().String())
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p0, _ := strconv.Atoi(port)
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p1 := p0 / 256
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p2 := p0 - p1*256
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s.port, _ = strconv.Atoi(port)
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s.passive = true
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s.ctrl.PrintfLine("227 Entering Passive Mode (%s,%d,%d)", strings.Replace(host, ".", ",", -1), p1, p2)
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}
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func (s *Conn) newPassiveSocket() (net.Conn, error) {
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return s.ln.Accept()
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}
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func (s *Conn) newActiveSocket() (net.Conn, error) {
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return net.Dial("tcp", fmt.Sprintf("%s:%d", s.host, s.port))
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}
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func (s *Conn) newSocket() (net.Conn, error) {
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if s.passive {
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return s.newPassiveSocket()
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}
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return s.newActiveSocket()
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}
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func (s *Conn) cmdServerSize(args string) {
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fmt.Printf("cmdServerSize: %s\n", args)
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if s.path == "/" && len(args) == 0 {
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s.ctrl.PrintfLine("213 %d", 0)
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return
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}
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p := ""
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cnt := ""
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if args[0] == '/' {
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cnt = strings.Split(args, "/")[1]
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p = strings.Join(strings.Split(args, "/")[2:], "")
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} else {
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if s.path != "/" {
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cnt = strings.Split(s.path, "/")[1]
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p = filepath.Clean(filepath.Join(strings.Join(strings.Split(s.path, "/")[2:], "/"), args))
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} else {
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cnt = strings.Split(args, "/")[0]
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}
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}
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if p != "" {
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obj, _, err := s.sw.Object(cnt, p)
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if err != nil {
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fmt.Printf(err.Error())
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s.ctrl.PrintfLine("501 Error")
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return
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}
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s.ctrl.PrintfLine("213 %d", obj.Bytes)
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} else {
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s.ctrl.PrintfLine("550 Could not get file size.")
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}
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}
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func (s *Conn) cmdServerCwd(args string) {
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fmt.Printf("cmdServerCwd: %s\n", args)
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s.path = filepath.Clean("/" + args)
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s.ctrl.PrintfLine(`250 "%s" is current directory.`, s.path)
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}
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func (s *Conn) cmdServerPort(args string) {
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fmt.Printf("cmdServerPort: %s\n", args)
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s.passive = false
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s.ctrl.PrintfLine("522 Data connection failed")
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}
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func (s *Conn) cmdServerEprt(args string) {
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fmt.Printf("cmdServerEprt: %s\n", args)
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parts := strings.Split(args, "|")
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s.host = parts[2]
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s.port, _ = strconv.Atoi(parts[3])
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s.passive = false
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s.ctrl.PrintfLine("200 Ok")
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}
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func (s *Conn) cmdServerLprt(args string) {
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fmt.Printf("cmdServerLprt: %s\n", args)
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s.ctrl.PrintfLine("522 Data connection failed")
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}
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func (s *Conn) cmdServerLpsv(args string) {
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fmt.Printf("cmdServerLpsv: %s\n", args)
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s.ctrl.PrintfLine("522 Data connection failed")
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}
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func (s *Conn) cmdServerFeat(args string) {
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fmt.Printf("cmdServerFeat: %s\n", args)
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s.ctrl.PrintfLine("501 Data connection failed")
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return
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s.ctrl.PrintfLine(`211-Extensions supported:
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SIZE
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RETR
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CWD
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PWD
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QUIT
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SYST
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PASV
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EPSV
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LIST
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TYPE
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USER
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PASS
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UTF8
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211 END`)
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}
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func (s *Conn) cmdServerDele(args string) {
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fmt.Printf("cmdServerDele: %s\n", args)
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p := ""
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cnt := ""
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var err error
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if args[0] == '/' {
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cnt = strings.Split(args, "/")[1]
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p = filepath.Clean(strings.Join(strings.Split(args, "/")[2:], "/"))
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} else {
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if s.path != "/" {
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cnt = strings.Split(s.path, "/")[1]
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p = filepath.Clean(filepath.Join(strings.Join(strings.Split(s.path, "/")[2:], "/"), args))
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}
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}
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err = s.sw.ObjectDelete(cnt, p)
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if err != nil {
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fmt.Printf(err.Error())
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s.ctrl.PrintfLine(`450 Delete failed "%s"`, args)
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return
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}
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s.ctrl.PrintfLine(`250 Delete success "%s"`, args)
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}
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func (s *Conn) cmdServerRmd(args string) {
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fmt.Printf("cmdServerRmd: %s\n", args)
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p := ""
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cnt := ""
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var err error
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if args[0] == '/' {
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cnt = strings.Split(args, "/")[1]
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p = filepath.Clean(strings.Join(strings.Split(args, "/")[2:], "/"))
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} else {
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if s.path != "/" {
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cnt = strings.Split(s.path, "/")[1]
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p = filepath.Clean(filepath.Join(strings.Join(strings.Split(s.path, "/")[2:], "/"), args))
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}
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}
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if p != "" && p != "." {
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err = s.sw.ObjectDelete(cnt, p)
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} else {
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err = s.sw.ContainerDelete(cnt)
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}
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if err != nil {
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fmt.Printf(err.Error())
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s.ctrl.PrintfLine(`450 Delete failed "%s"`, args)
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return
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}
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s.ctrl.PrintfLine(`250 Delete success "%s"`, args)
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}
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func (s *Conn) cmdServerMkd(args string) {
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fmt.Printf("cmdServerMkd: %s\n", args)
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p := ""
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cnt := ""
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var err error
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if args[0] == '/' {
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cnt = strings.Split(args, "/")[1]
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p = filepath.Clean(strings.Join(strings.Split(args, "/")[2:], "/"))
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} else {
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if s.path != "/" {
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cnt = strings.Split(s.path, "/")[1]
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p = filepath.Clean(filepath.Join(strings.Join(strings.Split(s.path, "/")[2:], "/"), args))
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}
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}
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if p != "" && p != "." {
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var f *swift.ObjectCreateFile
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f, err = s.sw.ObjectCreate(cnt, p, false, "", "application/directory", nil)
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if err != nil {
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fmt.Printf(err.Error())
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s.ctrl.PrintfLine(`550 Create failed "%s"`, args)
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return
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}
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err = f.Close()
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} else {
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err = s.sw.ContainerCreate(cnt, nil)
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}
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if err != nil {
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fmt.Printf(err.Error())
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s.ctrl.PrintfLine(`550 Create failed "%s"`, args)
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return
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}
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s.ctrl.PrintfLine(`250 Create success "%s"`, args)
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}
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func (s *Conn) cmdServerRetr(args string) {
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fmt.Printf("cmdServerRetr: %s\n", args)
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p := ""
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cnt := ""
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if args[0] == '/' {
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cnt = strings.Split(args, "/")[1]
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p = filepath.Clean(strings.Join(strings.Split(args, "/")[2:], "/"))
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} else {
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cnt = strings.Split(s.path, "/")[1]
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p = filepath.Clean(filepath.Join(strings.Join(strings.Split(s.path, "/")[2:], "/"), args))
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}
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_, _, err := s.sw.Object(cnt, p)
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if err != nil {
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s.ctrl.PrintfLine("550 Failed to open file")
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return
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}
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s.ctrl.PrintfLine(`150 Opening data channel for file contents "%s"`, args)
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c, err := s.newSocket()
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if err != nil {
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s.ctrl.PrintfLine("425 Data connection failed")
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return
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}
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defer c.Close()
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_, err = s.sw.ObjectGet(cnt, p, c, false, nil)
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if err != nil {
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s.ctrl.PrintfLine("550 Failed to open file")
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return
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}
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s.ctrl.PrintfLine(`226 Closing data connection`)
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}
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func (s *Conn) cmdServerStor(args string) {
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fmt.Printf("cmdServerRetr: %s\n", args)
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p := ""
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cnt := ""
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if args[0] == '/' {
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cnt = strings.Split(args, "/")[1]
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p = filepath.Clean(strings.Join(strings.Split(args, "/")[2:], "/"))
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} else {
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cnt = strings.Split(s.path, "/")[1]
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p = filepath.Clean(filepath.Join(strings.Join(strings.Split(s.path, "/")[2:], "/"), args))
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}
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s.ctrl.PrintfLine(`150 Opening data channel for file contents "%s"`, args)
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c, err := s.newSocket()
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if err != nil {
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s.ctrl.PrintfLine("425 Data connection failed")
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return
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}
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defer c.Close()
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_, err = s.sw.ObjectPut(cnt, p, c, false, "", "", nil)
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if err != nil {
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s.ctrl.PrintfLine("552 Failed to store file")
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return
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}
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s.ctrl.PrintfLine(`226 Closing data connection`)
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}
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func (s *Conn) cmdServerSite(args string) {
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s.ctrl.PrintfLine(`200 Success`)
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//SITE CHMOD 0644 /public/.wgetpaste.conf
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}
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