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Move ssh helper functions to sshd.go and remove compiled binary

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master
Hugo Thunnissen 2 years ago
parent 14b55747e5
commit cf1667f0bf
4 changed files with 47 additions and 99 deletions
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1
.gitignore vendored
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@ -0,0 +1 @@
/nssh

99
main.go
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@ -1,11 +1,6 @@
package main
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/binary"
"encoding/pem"
"io/ioutil"
"log"
@ -13,103 +8,9 @@ import (
"golang.org/x/crypto/ssh"
)
func generatePrivateKey(bitSize int) (*rsa.PrivateKey, error) {
// Private Key generation
privateKey, err := rsa.GenerateKey(rand.Reader, bitSize)
if err != nil {
return nil, err
}
// Validate Private Key
err = privateKey.Validate()
if err != nil {
return nil, err
}
log.Println("Private Key generated")
return privateKey, nil
}
func encodePrivateKeyToPEM(privateKey *rsa.PrivateKey) []byte {
// Get ASN.1 DER format
privDER := x509.MarshalPKCS1PrivateKey(privateKey)
// pem.Block
privBlock := pem.Block{
Type: "RSA PRIVATE KEY",
Headers: nil,
Bytes: privDER,
}
// Private key in PEM format
privatePEM := pem.EncodeToMemory(&privBlock)
return privatePEM
}
// parseDims extracts two uint32s from the provided buffer.
func parseDims(b []byte) (uint32, uint32) {
w := binary.BigEndian.Uint32(b)
h := binary.BigEndian.Uint32(b[4:])
return w, h
}
const WebDir = "/hugo-website"
func main() {
// shell := ipfsapi.NewShell("127.0.0.1:5001")
// ctx, _ := context.WithDeadline(context.Background(), time.Now().Add(time.Hour))
// _, err := shell.KeyGen(ctx, "website-index")
// if err != nil {
// log.Fatal(err)
// }
// id, err := shell.Add(
// strings.NewReader(
// "<!DOCTYPE HTML>" +
// "<html><body><h1>heeeeeeeyaa</h1></body></html>",
// ),
// )
// if err != nil {
// log.Fatal(err)
// }
// log.Println("added file by name " + id)
// resp, err := shell.PublishWithDetails(id, "website/index.html", 24*365*10*time.Hour, time.Hour, true)
// if err != nil {
// log.Fatal(err)
// }
// log.Println(resp.Name)
// obj, err := shell.ObjectGet("QmbJSh4EQvxz6cD6NyZ92smxBYfwTU6zr6No5APjANZ92D")
// if err != nil {
// log.Fatal(err)
// }
// log.Println(obj.Links)
// err = shell.FilesMkdir(ctx, WebDir)
// if err!= nil {
// log.Fatal(err)
// }
// shell.FilesLs(ctx context.Context, path string, options ...ipfsapi.FilesOpt)
// stats, err := shell.FilesStat(ctx, WebDir)
// if err != nil {
// if ipfsErr, ok := err.(*ipfsapi.Error); ok {
// log.Println("IPFS error code: ", ipfsErr.Code, ipfsErr.Command)
// }
// log.Fatal(err)
// }
// log.Println(stats)
// Public key authentication is done by comparing
// the public key of a received connection
// with the entries in the authorized_keys file.

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nssh
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46
sshd.go
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@ -1,6 +1,11 @@
package main
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/binary"
"encoding/pem"
"errors"
"fmt"
"io"
@ -10,6 +15,47 @@ import (
"golang.org/x/crypto/ssh"
)
func generatePrivateKey(bitSize int) (*rsa.PrivateKey, error) {
// Private Key generation
privateKey, err := rsa.GenerateKey(rand.Reader, bitSize)
if err != nil {
return nil, err
}
// Validate Private Key
err = privateKey.Validate()
if err != nil {
return nil, err
}
log.Println("Private Key generated")
return privateKey, nil
}
func encodePrivateKeyToPEM(privateKey *rsa.PrivateKey) []byte {
// Get ASN.1 DER format
privDER := x509.MarshalPKCS1PrivateKey(privateKey)
// pem.Block
privBlock := pem.Block{
Type: "RSA PRIVATE KEY",
Headers: nil,
Bytes: privDER,
}
// Private key in PEM format
privatePEM := pem.EncodeToMemory(&privBlock)
return privatePEM
}
// parseDims extracts two uint32s from the provided buffer.
func parseDims(b []byte) (uint32, uint32) {
w := binary.BigEndian.Uint32(b)
h := binary.BigEndian.Uint32(b[4:])
return w, h
}
type Sshd struct {
AuthorizedKeysMap map[string]bool
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