bfu/glider-ssh
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fixing a type led to general cleanup. also added a comment.

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Signed-off-by: Jeff Lindsay <progrium@gmail.com>
This commit is contained in:
Jeff Lindsay 2017-02-14 18:30:43 -06:00
parent f3131153bc
commit 0922cadde6
3 changed files with 14 additions and 21 deletions
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26
_example/public_key/public_key.go
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@ -1,33 +1,25 @@
package main
import (
"fmt"
"io"
"log"
b64 "encoding/base64"
"github.com/gliderlabs/ssh"
gossh "golang.org/x/crypto/ssh"
)
func main() {
ssh.Handle(func(s ssh.Session) {
user := s.User()
keyType := s.PublicKey().Type()
publicKeyString := keyType + " " + b64.StdEncoding.EncodeToString(s.PublicKey().Marshal())
io.WriteString(s, "Hello "+user+"\n\n")
io.WriteString(s, "your public key:\n")
io.WriteString(s, publicKeyString+"\n\n")
authorizedKey := gossh.MarshalAuthorizedKey(s.PublicKey())
io.WriteString(s, fmt.Sprintf("public key used by %s:\n", s.User()))
s.Write(authorizedKey)
})
publicKeyHandler := ssh.PublicKeyAuth(func(user string, key ssh.PublicKey) bool {
// allow all keys
// use ssh.KeysEqual() to compare agains know keys
return true
publicKeyOption := ssh.PublicKeyAuth(func(user string, key ssh.PublicKey) bool {
return true // allow all keys, or use ssh.KeysEqual() to compare against known keys
})
log.Println("starting ssh server on port: 2222")
log.Fatal(ssh.ListenAndServe(":2222", nil, publicKeyHandler))
log.Println("starting ssh server on port 2222...")
log.Fatal(ssh.ListenAndServe(":2222", nil, publicKeyOption))
}

7
_example/simple/simple.go
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@ -1,6 +1,7 @@
package main
import (
"fmt"
"io"
"log"
@ -8,12 +9,10 @@ import (
)
func main() {
ssh.Handle(func(s ssh.Session) {
user := s.User()
io.WriteString(s, "Hello "+user+"\n")
io.WriteString(s, fmt.Sprintf("Hello %s\n", s.User()))
})
log.Println("starting ssh server on port: 2222")
log.Println("starting ssh server on port 2222...")
log.Fatal(ssh.ListenAndServe(":2222", nil))
}

2
server.go
View File

@ -59,6 +59,8 @@ func (srv *Server) makeConfig() (*gossh.ServerConfig, error) {
if ok := srv.PublicKeyHandler(conn.User(), key); !ok {
return perms, fmt.Errorf("permission denied")
}
// no other way to pass the key from
// auth handler to session handler
perms.Extensions = map[string]string{
"_publickey": string(key.Marshal()),
}