gitea/vendor/github.com/markbates/goth/providers/github/session.go

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Oauth2 consumer (#679) * initial stuff for oauth2 login, fails on: * login button on the signIn page to start the OAuth2 flow and a callback for each provider Only GitHub is implemented for now * show login button only when the OAuth2 consumer is configured (and activated) * create macaron group for oauth2 urls * prevent net/http in modules (other then oauth2) * use a new data sessions oauth2 folder for storing the oauth2 session data * add missing 2FA when this is enabled on the user * add password option for OAuth2 user , for use with git over http and login to the GUI * add tip for registering a GitHub OAuth application * at startup of Gitea register all configured providers and also on adding/deleting of new providers * custom handling of errors in oauth2 request init + show better tip * add ExternalLoginUser model and migration script to add it to database * link a external account to an existing account (still need to handle wrong login and signup) and remove if user is removed * remove the linked external account from the user his settings * if user is unknown we allow him to register a new account or link it to some existing account * sign up with button on signin page (als change OAuth2Provider structure so we can store basic stuff about providers) * from gorilla/sessions docs: "Important Note: If you aren't using gorilla/mux, you need to wrap your handlers with context.ClearHandler as or else you will leak memory!" (we're using gorilla/sessions for storing oauth2 sessions) * use updated goth lib that now supports getting the OAuth2 user if the AccessToken is still valid instead of re-authenticating (prevent flooding the OAuth2 provider)
2017-02-22 07:14:37 +00:00
package github
import (
"encoding/json"
"errors"
"strings"
"github.com/markbates/goth"
)
// Session stores data during the auth process with Github.
type Session struct {
AuthURL string
AccessToken string
}
// GetAuthURL will return the URL set by calling the `BeginAuth` function on the Github provider.
func (s Session) GetAuthURL() (string, error) {
if s.AuthURL == "" {
return "", errors.New(goth.NoAuthUrlErrorMessage)
}
return s.AuthURL, nil
}
// Authorize the session with Github and return the access token to be stored for future use.
func (s *Session) Authorize(provider goth.Provider, params goth.Params) (string, error) {
p := provider.(*Provider)
token, err := p.config.Exchange(goth.ContextForClient(p.Client()), params.Get("code"))
if err != nil {
return "", err
}
if !token.Valid() {
return "", errors.New("Invalid token received from provider")
}
s.AccessToken = token.AccessToken
return token.AccessToken, err
}
// Marshal the session into a string
func (s Session) Marshal() string {
b, _ := json.Marshal(s)
return string(b)
}
func (s Session) String() string {
return s.Marshal()
}
// UnmarshalSession will unmarshal a JSON string into a session.
func (p *Provider) UnmarshalSession(data string) (goth.Session, error) {
sess := &Session{}
err := json.NewDecoder(strings.NewReader(data)).Decode(sess)
return sess, err
}