英文:
Is it possible to present an embedded file as a filename?
问题
我使用一个需要**文件名作为参数（类型为string）**的函数。当提供文件名时，它可以正常工作。
我想要将这个文件嵌入到我的二进制文件中。然后我可以将其内容作为[]byte或string，但这并不实用。我也可以将其保存为embed.FS，但我理解这是一个只能被某些函数使用的抽象。
我需要的是能够将这个嵌入的文件呈现为文件名（一个string），然后由底层函数来打开（嵌入的）文件。
这种做法可行吗？
英文:
I use a function that requires a filename as a parameter (of type string). It works fine when providing the filename.
I would like to embed this file in my binary. I can then have the contents as []byte or string but that's not useful. I can also fave it as embed.FS but my understanding is that this is an abstraction that can be used by some functions only.
What I would need is the ability to present this embedded file as a filename (a string) that would then be used by the underlying function to open the (embedded) file.
Is this possible?
答案1
得分: 3
Filename that Key accept as string argument is only abstraction on ioutil.ReadFile, see auth.go
What you can do is implement ssh.Auth yourself, here is small example.
package main
import (
_ "embed"
"fmt"
"github.com/melbahja/goph"
"golang.org/x/crypto/ssh"
)
//go:embed id_rsa
var privateKey []byte
func main() {
auth, err := Auth(privateKey, []byte("foobar"))
fmt.Println(auth, err)
}
func Auth(privateKey, pass []byte) (goph.Auth, error) {
signer, err := Singer(privateKey, pass)
if err != nil {
return nil, err
}
return goph.Auth{
ssh.PublicKeys(signer),
}, nil
}
func Singer(privateKey, pass []byte) (ssh.Signer, error) {
if len(pass) != 0 {
return ssh.ParsePrivateKeyWithPassphrase(privateKey, pass)
}
return ssh.ParsePrivateKey(privateKey)
}
英文:
Filename that Key accept as string argument is only abstraction on ioutil.ReadFile, see auth.go
What you can do is implement ssh.Auth yourself, here is small example.
package main
import (
_ "embed"
"fmt"
"github.com/melbahja/goph"
"golang.org/x/crypto/ssh"
)
//go:embed id_rsa
var privateKey []byte
func main() {
auth, err := Auth(privateKey, []byte("foobar"))
fmt.Println(auth, err)
}
func Auth(privateKey, pass []byte) (goph.Auth, error) {
signer, err := Singer(privateKey, pass)
if err != nil {
return nil, err
}
return goph.Auth{
ssh.PublicKeys(signer),
}, nil
}
func Singer(privateKey, pass []byte) (ssh.Signer, error) {
if len(pass) != 0 {
return ssh.ParsePrivateKeyWithPassphrase(privateKey, pass)
}
return ssh.ParsePrivateKey(privateKey)
}
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