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proof.go
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proof.go
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package main
import (
"fmt"
"io/ioutil"
"net/http"
"github.com/wlie/dpop"
"github.com/urfave/cli"
"gopkg.in/square/go-jose.v2"
)
func getKey(c *cli.Context) (*jose.JSONWebKey, error) {
keyName := c.String("key-name")
if keyName == "" {
return nil, fmt.Errorf("--key-name is required")
}
keyId := keyNamePattern.ReplaceAllString(keyName, "_")
fn := keyId + ".jwk.key"
data, err := ioutil.ReadFile(fn)
if err != nil {
return nil, err
}
wk := &jose.JSONWebKey{}
err = wk.UnmarshalJSON(data)
if err != nil {
return nil, err
}
return wk, nil
}
var signProof = cli.Command{
Name: "proof",
Aliases: []string{"c"},
Usage: "Signs a DPOP-Proof header",
Flags: []cli.Flag{
cli.StringFlag{
Name: "key-name",
},
cli.StringFlag{
Name: "url",
},
cli.StringFlag{
Name: "method",
Value: "POST",
},
},
Action: func(c *cli.Context) error {
reqUrl := c.String("url")
if reqUrl == "" {
return fmt.Errorf("--url is required")
}
wk, err := getKey(c)
if err != nil {
return err
}
p, err := dpop.New(jose.SigningKey{
Key: wk.Key,
Algorithm: jose.ES256,
})
if err != nil {
return err
}
req, err := http.NewRequest(c.String("method"), reqUrl, nil)
if err != nil {
return err
}
err = p.ForRequest(req, nil)
if err != nil {
return err
}
cmd, err := req2curl(req)
if err != nil {
return err
}
fmt.Printf("%s\n", cmd)
return nil
},
}