code.gitea.io/gitea@v1.19.3/modules/generate/generate.go (about)

     1  // Copyright 2016 The Gogs Authors. All rights reserved.
     2  // Copyright 2016 The Gitea Authors. All rights reserved.
     3  // SPDX-License-Identifier: MIT
     4  
     5  package generate
     6  
     7  import (
     8  	"crypto/rand"
     9  	"encoding/base64"
    10  	"io"
    11  	"time"
    12  
    13  	"code.gitea.io/gitea/modules/util"
    14  
    15  	"github.com/golang-jwt/jwt/v4"
    16  )
    17  
    18  // NewInternalToken generate a new value intended to be used by INTERNAL_TOKEN.
    19  func NewInternalToken() (string, error) {
    20  	secretBytes := make([]byte, 32)
    21  	_, err := io.ReadFull(rand.Reader, secretBytes)
    22  	if err != nil {
    23  		return "", err
    24  	}
    25  
    26  	secretKey := base64.RawURLEncoding.EncodeToString(secretBytes)
    27  
    28  	now := time.Now()
    29  
    30  	var internalToken string
    31  	internalToken, err = jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
    32  		"nbf": now.Unix(),
    33  	}).SignedString([]byte(secretKey))
    34  	if err != nil {
    35  		return "", err
    36  	}
    37  
    38  	return internalToken, nil
    39  }
    40  
    41  // NewJwtSecret generates a new value intended to be used for JWT secrets.
    42  func NewJwtSecret() ([]byte, error) {
    43  	bytes := make([]byte, 32)
    44  	_, err := io.ReadFull(rand.Reader, bytes)
    45  	if err != nil {
    46  		return nil, err
    47  	}
    48  	return bytes, nil
    49  }
    50  
    51  // NewJwtSecretBase64 generates a new base64 encoded value intended to be used for JWT secrets.
    52  func NewJwtSecretBase64() (string, error) {
    53  	bytes, err := NewJwtSecret()
    54  	if err != nil {
    55  		return "", err
    56  	}
    57  	return base64.RawURLEncoding.EncodeToString(bytes), nil
    58  }
    59  
    60  // NewSecretKey generate a new value intended to be used by SECRET_KEY.
    61  func NewSecretKey() (string, error) {
    62  	secretKey, err := util.CryptoRandomString(64)
    63  	if err != nil {
    64  		return "", err
    65  	}
    66  
    67  	return secretKey, nil
    68  }