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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package packages
import (
"fmt"
"net/http"
"strings"
"time"
auth_model "code.gitea.io/gitea/models/auth"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"github.com/golang-jwt/jwt/v5"
)
type packageClaims struct {
jwt.RegisteredClaims
PackageMeta
}
type PackageMeta struct {
UserID int64
Scope auth_model.AccessTokenScope
}
func CreateAuthorizationToken(u *user_model.User, packageScope auth_model.AccessTokenScope) (string, error) {
now := time.Now()
claims := packageClaims{
RegisteredClaims: jwt.RegisteredClaims{
ExpiresAt: jwt.NewNumericDate(now.Add(24 * time.Hour)),
NotBefore: jwt.NewNumericDate(now),
},
PackageMeta: PackageMeta{
UserID: u.ID,
Scope: packageScope,
},
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
tokenString, err := token.SignedString(setting.GetGeneralTokenSigningSecret())
if err != nil {
return "", err
}
return tokenString, nil
}
func ParseAuthorizationRequest(req *http.Request) (*PackageMeta, error) {
h := req.Header.Get("Authorization")
if h == "" {
return nil, nil
}
parts := strings.SplitN(h, " ", 2)
if len(parts) != 2 {
log.Error("split token failed: %s", h)
return nil, fmt.Errorf("split token failed")
}
return ParseAuthorizationToken(parts[1])
}
func ParseAuthorizationToken(tokenStr string) (*PackageMeta, error) {
token, err := jwt.ParseWithClaims(tokenStr, &packageClaims{}, func(t *jwt.Token) (any, error) {
if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", t.Header["alg"])
}
return setting.GetGeneralTokenSigningSecret(), nil
})
if err != nil {
return nil, err
}
c, ok := token.Claims.(*packageClaims)
if !token.Valid || !ok {
return nil, fmt.Errorf("invalid token claim")
}
return &c.PackageMeta, nil
}
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