diff options
Diffstat (limited to 'vendor/github.com/pkg/sftp/examples/sftp-server/main.go')
-rw-r--r-- | vendor/github.com/pkg/sftp/examples/sftp-server/main.go | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/vendor/github.com/pkg/sftp/examples/sftp-server/main.go b/vendor/github.com/pkg/sftp/examples/sftp-server/main.go deleted file mode 100644 index 48e0e868..00000000 --- a/vendor/github.com/pkg/sftp/examples/sftp-server/main.go +++ /dev/null @@ -1,147 +0,0 @@ -// An example SFTP server implementation using the golang SSH package. -// Serves the whole filesystem visible to the user, and has a hard-coded username and password, -// so not for real use! -package main - -import ( - "flag" - "fmt" - "io" - "io/ioutil" - "log" - "net" - "os" - - "github.com/pkg/sftp" - "golang.org/x/crypto/ssh" -) - -// Based on example server code from golang.org/x/crypto/ssh and server_standalone -func main() { - - var ( - readOnly bool - debugStderr bool - ) - - flag.BoolVar(&readOnly, "R", false, "read-only server") - flag.BoolVar(&debugStderr, "e", false, "debug to stderr") - flag.Parse() - - debugStream := ioutil.Discard - if debugStderr { - debugStream = os.Stderr - } - - // An SSH server is represented by a ServerConfig, which holds - // certificate details and handles authentication of ServerConns. - config := &ssh.ServerConfig{ - PasswordCallback: func(c ssh.ConnMetadata, pass []byte) (*ssh.Permissions, error) { - // Should use constant-time compare (or better, salt+hash) in - // a production setting. - fmt.Fprintf(debugStream, "Login: %s\n", c.User()) - if c.User() == "testuser" && string(pass) == "tiger" { - return nil, nil - } - return nil, fmt.Errorf("password rejected for %q", c.User()) - }, - } - - privateBytes, err := ioutil.ReadFile("id_rsa") - if err != nil { - log.Fatal("Failed to load private key", err) - } - - private, err := ssh.ParsePrivateKey(privateBytes) - if err != nil { - log.Fatal("Failed to parse private key", err) - } - - config.AddHostKey(private) - - // Once a ServerConfig has been configured, connections can be - // accepted. - listener, err := net.Listen("tcp", "0.0.0.0:2022") - if err != nil { - log.Fatal("failed to listen for connection", err) - } - fmt.Printf("Listening on %v\n", listener.Addr()) - - nConn, err := listener.Accept() - if err != nil { - log.Fatal("failed to accept incoming connection", err) - } - - // Before use, a handshake must be performed on the incoming - // net.Conn. - _, chans, reqs, err := ssh.NewServerConn(nConn, config) - if err != nil { - log.Fatal("failed to handshake", err) - } - fmt.Fprintf(debugStream, "SSH server established\n") - - // The incoming Request channel must be serviced. - go ssh.DiscardRequests(reqs) - - // Service the incoming Channel channel. - for newChannel := range chans { - // Channels have a type, depending on the application level - // protocol intended. In the case of an SFTP session, this is "subsystem" - // with a payload string of "<length=4>sftp" - fmt.Fprintf(debugStream, "Incoming channel: %s\n", newChannel.ChannelType()) - if newChannel.ChannelType() != "session" { - newChannel.Reject(ssh.UnknownChannelType, "unknown channel type") - fmt.Fprintf(debugStream, "Unknown channel type: %s\n", newChannel.ChannelType()) - continue - } - channel, requests, err := newChannel.Accept() - if err != nil { - log.Fatal("could not accept channel.", err) - } - fmt.Fprintf(debugStream, "Channel accepted\n") - - // Sessions have out-of-band requests such as "shell", - // "pty-req" and "env". Here we handle only the - // "subsystem" request. - go func(in <-chan *ssh.Request) { - for req := range in { - fmt.Fprintf(debugStream, "Request: %v\n", req.Type) - ok := false - switch req.Type { - case "subsystem": - fmt.Fprintf(debugStream, "Subsystem: %s\n", req.Payload[4:]) - if string(req.Payload[4:]) == "sftp" { - ok = true - } - } - fmt.Fprintf(debugStream, " - accepted: %v\n", ok) - req.Reply(ok, nil) - } - }(requests) - - serverOptions := []sftp.ServerOption{ - sftp.WithDebug(debugStream), - } - - if readOnly { - serverOptions = append(serverOptions, sftp.ReadOnly()) - fmt.Fprintf(debugStream, "Read-only server\n") - } else { - fmt.Fprintf(debugStream, "Read write server\n") - } - - server, err := sftp.NewServer( - channel, - serverOptions..., - ) - if err != nil { - log.Fatal(err) - } - if err := server.Serve(); err == io.EOF { - server.Close() - log.Print("sftp client exited session.") - } else if err != nil { - log.Fatal("sftp server completed with error:", err) - } - } -} |