Vendor dependencies with dep

vendor/github.com/pkg/sftp/examples/buffered-read-benchmark/main.go

@@ -0,0 +1,78 @@
+// buffered-read-benchmark benchmarks the peformance of reading
+// from /dev/zero on the server to a []byte on the client via io.Copy.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"os"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+	"golang.org/x/crypto/ssh/agent"
+
+	"github.com/pkg/sftp"
+)
+
+var (
+	USER = flag.String("user", os.Getenv("USER"), "ssh username")
+	HOST = flag.String("host", "localhost", "ssh server hostname")
+	PORT = flag.Int("port", 22, "ssh server port")
+	PASS = flag.String("pass", os.Getenv("SOCKSIE_SSH_PASSWORD"), "ssh password")
+	SIZE = flag.Int("s", 1<<15, "set max packet size")
+)
+
+func init() {
+	flag.Parse()
+}
+
+func main() {
+	var auths []ssh.AuthMethod
+	if aconn, err := net.Dial("unix", os.Getenv("SSH_AUTH_SOCK")); err == nil {
+		auths = append(auths, ssh.PublicKeysCallback(agent.NewClient(aconn).Signers))
+
+	}
+	if *PASS != "" {
+		auths = append(auths, ssh.Password(*PASS))
+	}
+
+	config := ssh.ClientConfig{
+		User: *USER,
+		Auth: auths,
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
+	}
+	addr := fmt.Sprintf("%s:%d", *HOST, *PORT)
+	conn, err := ssh.Dial("tcp", addr, &config)
+	if err != nil {
+		log.Fatalf("unable to connect to [%s]: %v", addr, err)
+	}
+	defer conn.Close()
+
+	c, err := sftp.NewClient(conn, sftp.MaxPacket(*SIZE))
+	if err != nil {
+		log.Fatalf("unable to start sftp subsytem: %v", err)
+	}
+	defer c.Close()
+
+	r, err := c.Open("/dev/zero")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer r.Close()
+
+	const size = 1e9
+
+	log.Printf("reading %v bytes", size)
+	t1 := time.Now()
+	n, err := io.ReadFull(r, make([]byte, size))
+	if err != nil {
+		log.Fatal(err)
+	}
+	if n != size {
+		log.Fatalf("copy: expected %v bytes, got %d", size, n)
+	}
+	log.Printf("read %v bytes in %s", size, time.Since(t1))
+}

vendor/github.com/pkg/sftp/examples/buffered-write-benchmark/main.go

@@ -0,0 +1,84 @@
+// buffered-write-benchmark benchmarks the peformance of writing
+// a single large []byte on the client to /dev/null on the server via io.Copy.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"net"
+	"os"
+	"syscall"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+	"golang.org/x/crypto/ssh/agent"
+
+	"github.com/pkg/sftp"
+)
+
+var (
+	USER = flag.String("user", os.Getenv("USER"), "ssh username")
+	HOST = flag.String("host", "localhost", "ssh server hostname")
+	PORT = flag.Int("port", 22, "ssh server port")
+	PASS = flag.String("pass", os.Getenv("SOCKSIE_SSH_PASSWORD"), "ssh password")
+	SIZE = flag.Int("s", 1<<15, "set max packet size")
+)
+
+func init() {
+	flag.Parse()
+}
+
+func main() {
+	var auths []ssh.AuthMethod
+	if aconn, err := net.Dial("unix", os.Getenv("SSH_AUTH_SOCK")); err == nil {
+		auths = append(auths, ssh.PublicKeysCallback(agent.NewClient(aconn).Signers))
+
+	}
+	if *PASS != "" {
+		auths = append(auths, ssh.Password(*PASS))
+	}
+
+	config := ssh.ClientConfig{
+		User: *USER,
+		Auth: auths,
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
+	}
+	addr := fmt.Sprintf("%s:%d", *HOST, *PORT)
+	conn, err := ssh.Dial("tcp", addr, &config)
+	if err != nil {
+		log.Fatalf("unable to connect to [%s]: %v", addr, err)
+	}
+	defer conn.Close()
+
+	c, err := sftp.NewClient(conn, sftp.MaxPacket(*SIZE))
+	if err != nil {
+		log.Fatalf("unable to start sftp subsytem: %v", err)
+	}
+	defer c.Close()
+
+	w, err := c.OpenFile("/dev/null", syscall.O_WRONLY)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer w.Close()
+
+	f, err := os.Open("/dev/zero")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer f.Close()
+
+	const size = 1e9
+
+	log.Printf("writing %v bytes", size)
+	t1 := time.Now()
+	n, err := w.Write(make([]byte, size))
+	if err != nil {
+		log.Fatal(err)
+	}
+	if n != size {
+		log.Fatalf("copy: expected %v bytes, got %d", size, n)
+	}
+	log.Printf("wrote %v bytes in %s", size, time.Since(t1))
+}

vendor/github.com/pkg/sftp/examples/request-server/main.go

@@ -0,0 +1,131 @@
+// 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.
+	sconn, chans, reqs, err := ssh.NewServerConn(nConn, config)
+	if err != nil {
+		log.Fatal("failed to handshake", err)
+	}
+	log.Println("login detected:", sconn.User())
+	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)
+
+		root := sftp.InMemHandler()
+		server := sftp.NewRequestServer(channel, root)
+		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)
+		}
+	}
+}

vendor/github.com/pkg/sftp/examples/sftp-server/README.md

@@ -0,0 +1,12 @@
+Example SFTP server implementation
+===
+
+In order to use this example you will need an RSA key.
+
+On linux-like systems with openssh installed, you can use the command:
+
+```
+ssh-keygen -t rsa -f id_rsa
+```
+
+Then you will be able to run the sftp-server command in the current directory.

vendor/github.com/pkg/sftp/examples/sftp-server/main.go

@@ -0,0 +1,147 @@
+// 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)
+		}
+	}
+}

vendor/github.com/pkg/sftp/examples/streaming-read-benchmark/main.go

@@ -0,0 +1,85 @@
+// streaming-read-benchmark benchmarks the peformance of reading
+// from /dev/zero on the server to /dev/null on the client via io.Copy.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"os"
+	"syscall"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+	"golang.org/x/crypto/ssh/agent"
+
+	"github.com/pkg/sftp"
+)
+
+var (
+	USER = flag.String("user", os.Getenv("USER"), "ssh username")
+	HOST = flag.String("host", "localhost", "ssh server hostname")
+	PORT = flag.Int("port", 22, "ssh server port")
+	PASS = flag.String("pass", os.Getenv("SOCKSIE_SSH_PASSWORD"), "ssh password")
+	SIZE = flag.Int("s", 1<<15, "set max packet size")
+)
+
+func init() {
+	flag.Parse()
+}
+
+func main() {
+	var auths []ssh.AuthMethod
+	if aconn, err := net.Dial("unix", os.Getenv("SSH_AUTH_SOCK")); err == nil {
+		auths = append(auths, ssh.PublicKeysCallback(agent.NewClient(aconn).Signers))
+
+	}
+	if *PASS != "" {
+		auths = append(auths, ssh.Password(*PASS))
+	}
+
+	config := ssh.ClientConfig{
+		User: *USER,
+		Auth: auths,
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
+	}
+	addr := fmt.Sprintf("%s:%d", *HOST, *PORT)
+	conn, err := ssh.Dial("tcp", addr, &config)
+	if err != nil {
+		log.Fatalf("unable to connect to [%s]: %v", addr, err)
+	}
+	defer conn.Close()
+
+	c, err := sftp.NewClient(conn, sftp.MaxPacket(*SIZE))
+	if err != nil {
+		log.Fatalf("unable to start sftp subsytem: %v", err)
+	}
+	defer c.Close()
+
+	r, err := c.Open("/dev/zero")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer r.Close()
+
+	w, err := os.OpenFile("/dev/null", syscall.O_WRONLY, 0600)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer w.Close()
+
+	const size int64 = 1e9
+
+	log.Printf("reading %v bytes", size)
+	t1 := time.Now()
+	n, err := io.Copy(w, io.LimitReader(r, size))
+	if err != nil {
+		log.Fatal(err)
+	}
+	if n != size {
+		log.Fatalf("copy: expected %v bytes, got %d", size, n)
+	}
+	log.Printf("read %v bytes in %s", size, time.Since(t1))
+}

vendor/github.com/pkg/sftp/examples/streaming-write-benchmark/main.go

@@ -0,0 +1,85 @@
+// streaming-write-benchmark benchmarks the peformance of writing
+// from /dev/zero on the client to /dev/null on the server via io.Copy.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"os"
+	"syscall"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+	"golang.org/x/crypto/ssh/agent"
+
+	"github.com/pkg/sftp"
+)
+
+var (
+	USER = flag.String("user", os.Getenv("USER"), "ssh username")
+	HOST = flag.String("host", "localhost", "ssh server hostname")
+	PORT = flag.Int("port", 22, "ssh server port")
+	PASS = flag.String("pass", os.Getenv("SOCKSIE_SSH_PASSWORD"), "ssh password")
+	SIZE = flag.Int("s", 1<<15, "set max packet size")
+)
+
+func init() {
+	flag.Parse()
+}
+
+func main() {
+	var auths []ssh.AuthMethod
+	if aconn, err := net.Dial("unix", os.Getenv("SSH_AUTH_SOCK")); err == nil {
+		auths = append(auths, ssh.PublicKeysCallback(agent.NewClient(aconn).Signers))
+
+	}
+	if *PASS != "" {
+		auths = append(auths, ssh.Password(*PASS))
+	}
+
+	config := ssh.ClientConfig{
+		User: *USER,
+		Auth: auths,
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
+	}
+	addr := fmt.Sprintf("%s:%d", *HOST, *PORT)
+	conn, err := ssh.Dial("tcp", addr, &config)
+	if err != nil {
+		log.Fatalf("unable to connect to [%s]: %v", addr, err)
+	}
+	defer conn.Close()
+
+	c, err := sftp.NewClient(conn, sftp.MaxPacket(*SIZE))
+	if err != nil {
+		log.Fatalf("unable to start sftp subsytem: %v", err)
+	}
+	defer c.Close()
+
+	w, err := c.OpenFile("/dev/null", syscall.O_WRONLY)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer w.Close()
+
+	f, err := os.Open("/dev/zero")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer f.Close()
+
+	const size int64 = 1e9
+
+	log.Printf("writing %v bytes", size)
+	t1 := time.Now()
+	n, err := io.Copy(w, io.LimitReader(f, size))
+	if err != nil {
+		log.Fatal(err)
+	}
+	if n != size {
+		log.Fatalf("copy: expected %v bytes, got %d", size, n)
+	}
+	log.Printf("wrote %v bytes in %s", size, time.Since(t1))
+}