github.com/mysteriumnetwork/node@v0.0.0-20240516044423-365054f76801/core/auth/common.go (about)

     1  /*
     2   * Copyright (C) 2023 The "MysteriumNetwork/node" Authors.
     3   *
     4   * This program is free software: you can redistribute it and/or modify
     5   * it under the terms of the GNU General Public License as published by
     6   * the Free Software Foundation, either version 3 of the License, or
     7   * (at your option) any later version.
     8   *
     9   * This program is distributed in the hope that it will be useful,
    10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12   * GNU General Public License for more details.
    13   *
    14   * You should have received a copy of the GNU General Public License
    15   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    16   */
    17  
    18  package auth
    19  
    20  import (
    21  	"errors"
    22  	"net/http"
    23  	"strings"
    24  
    25  	"github.com/gin-gonic/gin"
    26  )
    27  
    28  // TokenFromContext retrieve token from request Header or Cookie
    29  func TokenFromContext(c *gin.Context) (string, error) {
    30  	token, err := fromHeader(c)
    31  	if err != nil {
    32  		return "", err
    33  	}
    34  	if token != "" {
    35  		return token, nil
    36  	}
    37  
    38  	return fromCookie(c)
    39  }
    40  
    41  func fromHeader(c *gin.Context) (string, error) {
    42  	authHeader := c.GetHeader("Authorization")
    43  	if authHeader == "" {
    44  		return "", nil // No error, just no token
    45  	}
    46  
    47  	authHeaderParts := strings.Fields(authHeader)
    48  	if len(authHeaderParts) != 2 || strings.ToLower(authHeaderParts[0]) != "bearer" {
    49  		return "", errors.New(`authorization header format must be: "Bearer {token}"`)
    50  	}
    51  
    52  	return authHeaderParts[1], nil
    53  }
    54  
    55  func fromCookie(c *gin.Context) (string, error) {
    56  	token, err := c.Cookie(JWTCookieName)
    57  	if err == http.ErrNoCookie {
    58  		// No error, just no token
    59  		return "", nil
    60  	}
    61  	return token, nil
    62  }