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Add the galene-link utility.
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parent
37ef768ac0
commit
c4d46d20aa
3 changed files with 123 additions and 8 deletions
115
galene-link/galene-link.go
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115
galene-link/galene-link.go
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@ -0,0 +1,115 @@
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package main
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import (
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"flag"
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"fmt"
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"log"
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"net/url"
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"path"
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"time"
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"github.com/golang-jwt/jwt/v4"
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"github.com/jech/galene/group"
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"github.com/jech/galene/token"
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)
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func main() {
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var username, kid, server string
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var valid int
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var tokenOnly bool
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flag.StringVar(&group.Directory, "groups", "./groups/",
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"group description `directory`")
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flag.StringVar(&username, "user", "", "username")
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flag.StringVar(&kid, "kid", "", "`id` of key to use")
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flag.IntVar(&valid, "valid", 86400, "`seconds` validity")
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flag.StringVar(&server, "server", "https://galene.org:8443",
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"server `url`")
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flag.BoolVar(&tokenOnly, "token", false, "generate token only")
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flag.Parse()
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if flag.NArg() != 1 {
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log.Fatal("One argument (the group URL) required")
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}
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groupname := flag.Arg(0)
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desc, err := group.GetDescription(groupname)
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if err != nil {
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log.Fatal("Get group description: ", err)
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}
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serverURL, err := url.Parse(server)
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if err != nil {
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log.Fatal("Couldn't parse server URL")
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}
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pth := path.Join(path.Join(serverURL.Path, "group"), groupname) + "/"
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groupURL := &url.URL{
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Scheme: serverURL.Scheme,
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Host: serverURL.Host,
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Path: pth,
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}
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keys := desc.AuthKeys
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var key map[string]interface{}
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for _, k := range keys {
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kid2, _ := k["kid"].(string)
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if kid == "" || kid == kid2 {
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key = k
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break
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}
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}
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if key == nil {
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log.Fatal("Couldn't find key")
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}
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alg, ok := key["alg"].(string)
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var method jwt.SigningMethod
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if ok {
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method = jwt.GetSigningMethod(alg)
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}
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if method == nil {
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log.Fatal("Couldn't determine key signing method")
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}
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kstring, err := token.ParseKey(key)
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if err != nil {
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log.Fatal("Couldn't parse key")
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}
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now := time.Now()
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end := now.Add(time.Second * time.Duration(valid))
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token := jwt.NewWithClaims(
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method,
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&jwt.MapClaims{
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"sub": username,
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"aud": groupURL.String(),
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"exp": &jwt.NumericDate{end},
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"nbf": &jwt.NumericDate{now},
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"iat": &jwt.NumericDate{now},
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"permissions": []string{"present"},
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},
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)
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s, err := token.SignedString(kstring)
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if err != nil {
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log.Fatal("Couldn't sign token: ", err)
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}
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if tokenOnly {
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fmt.Println(s)
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} else {
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query := url.Values{}
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if username != "" {
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query.Add("username", username)
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}
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query.Add("token", s)
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outURL := &url.URL{
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Scheme: groupURL.Scheme,
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Host: groupURL.Host,
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Path: groupURL.Path,
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RawQuery: query.Encode(),
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}
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fmt.Println(outURL.String())
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}
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}
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@ -24,7 +24,7 @@ func parseBase64(k string, d map[string]interface{}) ([]byte, error) {
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return vv, nil
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}
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func parseKey(key map[string]interface{}) (interface{}, error) {
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func ParseKey(key map[string]interface{}) (interface{}, error) {
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kty, ok := key["kty"].(string)
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if !ok {
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return nil, errors.New("kty not found")
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@ -99,7 +99,7 @@ func getKey(header map[string]interface{}, keys []map[string]interface{}) (inter
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kid2, _ := k["kid"].(string)
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alg2, _ := k["alg"].(string)
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if (kid == "" || kid == kid2) && alg == alg2 {
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return parseKey(k)
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return ParseKey(k)
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}
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}
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return nil, errors.New("key not found")
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@ -21,13 +21,13 @@ func TestHS256(t *testing.T) {
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if err != nil {
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t.Fatalf("Unmarshal: %v", err)
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}
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k, err := parseKey(j)
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k, err := ParseKey(j)
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if err != nil {
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t.Fatalf("parseKey: %v", err)
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t.Fatalf("ParseKey: %v", err)
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}
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kk, ok := k.([]byte)
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if !ok || len(kk) != 32 {
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t.Errorf("parseKey: got %v", kk)
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t.Errorf("ParseKey: got %v", kk)
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}
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}
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@ -44,13 +44,13 @@ func TestES256(t *testing.T) {
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if err != nil {
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t.Fatalf("Unmarshal: %v", err)
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}
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k, err := parseKey(j)
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k, err := ParseKey(j)
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if err != nil {
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t.Fatalf("parseKey: %v", err)
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t.Fatalf("ParseKey: %v", err)
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}
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kk, ok := k.(*ecdsa.PublicKey)
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if !ok || kk.Params().Name != "P-256" {
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t.Errorf("parseKey: got %v", kk)
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t.Errorf("ParseKey: got %v", kk)
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}
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if !kk.IsOnCurve(kk.X, kk.Y) {
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t.Errorf("point is not on curve")
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