github.com/RichardKnop/go-oauth2-server@v1.0.5-0.20201019163316-d02a401490d0/oauth/grant_type_refresh_token.go (about)

     1  package oauth
     2  
     3  import (
     4  	"net/http"
     5  
     6  	"github.com/RichardKnop/go-oauth2-server/models"
     7  	"github.com/RichardKnop/go-oauth2-server/oauth/tokentypes"
     8  )
     9  
    10  func (s *Service) refreshTokenGrant(r *http.Request, client *models.OauthClient) (*AccessTokenResponse, error) {
    11  	// Fetch the refresh token
    12  	theRefreshToken, err := s.GetValidRefreshToken(r.Form.Get("refresh_token"), client)
    13  	if err != nil {
    14  		return nil, err
    15  	}
    16  
    17  	// Get the scope
    18  	scope, err := s.getRefreshTokenScope(theRefreshToken, r.Form.Get("scope"))
    19  	if err != nil {
    20  		return nil, err
    21  	}
    22  
    23  	// Log in the user
    24  	accessToken, refreshToken, err := s.Login(
    25  		theRefreshToken.Client,
    26  		theRefreshToken.User,
    27  		scope,
    28  	)
    29  	if err != nil {
    30  		return nil, err
    31  	}
    32  
    33  	// Create response
    34  	accessTokenResponse, err := NewAccessTokenResponse(
    35  		accessToken,
    36  		refreshToken,
    37  		s.cnf.Oauth.AccessTokenLifetime,
    38  		tokentypes.Bearer,
    39  	)
    40  	if err != nil {
    41  		return nil, err
    42  	}
    43  
    44  	return accessTokenResponse, nil
    45  }