mirror of https://github.com/go-gitea/gitea.git
* OAuth2: add Yandex provider (#8335) * remove changes from locale ru-RU * fmt modules/auth/oauth2/oauth2.go Co-Authored-By: 6543 <6543@obermui.de> * fix fmt * Update templates/admin/auth/new.tmpl * fix fmt Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: 6543 <6543@obermui.de> Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com> Co-authored-by: techknowlogick <matti@mdranta.net> Co-authored-by: Lauris BH <lauris@nix.lv>pull/10607/head^2
Lauris BH
5 years ago
committed by
GitHub
parent
afa1e1af16
commit
3d5d21133c
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package yandex
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import (
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"encoding/json"
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"errors"
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"strings"
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"time"
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"github.com/markbates/goth"
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"golang.org/x/oauth2"
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)
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// Session stores data during the auth process with Yandex.
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type Session struct {
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AuthURL string
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AccessToken string
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RefreshToken string
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ExpiresAt time.Time
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}
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var _ goth.Session = &Session{}
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// GetAuthURL will return the URL set by calling the `BeginAuth` function on the Yandex provider.
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func (s Session) GetAuthURL() (string, error) {
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if s.AuthURL == "" {
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return "", errors.New(goth.NoAuthUrlErrorMessage)
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}
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return s.AuthURL, nil
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}
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// Authorize the session with Yandex and return the access token to be stored for future use.
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func (s *Session) Authorize(provider goth.Provider, params goth.Params) (string, error) {
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p := provider.(*Provider)
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token, err := p.config.Exchange(oauth2.NoContext, params.Get("code"))
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if err != nil {
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return "", err
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}
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if !token.Valid() {
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return "", errors.New("Invalid token received from provider")
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}
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s.AccessToken = token.AccessToken
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s.RefreshToken = token.RefreshToken
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s.ExpiresAt = token.Expiry
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return token.AccessToken, err
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}
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// Marshal the session into a string
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func (s Session) Marshal() string {
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b, _ := json.Marshal(s)
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return string(b)
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}
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func (s Session) String() string {
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return s.Marshal()
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}
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// UnmarshalSession will unmarshal a JSON string into a session.
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func (p *Provider) UnmarshalSession(data string) (goth.Session, error) {
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s := &Session{}
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err := json.NewDecoder(strings.NewReader(data)).Decode(s)
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return s, err
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}
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@ -0,0 +1,183 @@
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// package yandex implements the OAuth2 protocol for authenticating users through Yandex.
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// This package can be used as a reference implementation of an OAuth2 provider for Goth.
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package yandex
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import (
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"bytes"
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"encoding/json"
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"io"
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"io/ioutil"
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"net/http"
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"fmt"
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"github.com/markbates/goth"
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"golang.org/x/oauth2"
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)
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const (
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authEndpoint string = "https://oauth.yandex.ru/authorize"
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tokenEndpoint string = "https://oauth.yandex.com/token"
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profileEndpoint string = "https://login.yandex.ru/info"
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avatarURL string = "https://avatars.yandex.net/get-yapic"
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avatarSize string = "islands-200"
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)
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// Provider is the implementation of `goth.Provider` for accessing Yandex.
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type Provider struct {
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ClientKey string
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Secret string
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CallbackURL string
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HTTPClient *http.Client
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config *oauth2.Config
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providerName string
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}
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// New creates a new Yandex provider and sets up important connection details.
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// You should always call `yandex.New` to get a new provider. Never try to
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// create one manually.
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func New(clientKey, secret, callbackURL string, scopes ...string) *Provider {
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p := &Provider{
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ClientKey: clientKey,
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Secret: secret,
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CallbackURL: callbackURL,
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providerName: "yandex",
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}
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p.config = newConfig(p, scopes)
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return p
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}
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func (p *Provider) Client() *http.Client {
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return goth.HTTPClientWithFallBack(p.HTTPClient)
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}
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// Name is the name used to retrieve this provider later.
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func (p *Provider) Name() string {
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return p.providerName
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}
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// SetName is to update the name of the provider (needed in case of multiple providers of 1 type)
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func (p *Provider) SetName(name string) {
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p.providerName = name
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}
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// Debug is a no-op for the yandex package.
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func (p *Provider) Debug(debug bool) {}
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// BeginAuth asks Yandex for an authentication end-point.
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func (p *Provider) BeginAuth(state string) (goth.Session, error) {
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return &Session{
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AuthURL: p.config.AuthCodeURL(state),
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}, nil
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}
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// FetchUser will go to Yandex and access basic information about the user.
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func (p *Provider) FetchUser(session goth.Session) (goth.User, error) {
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sess := session.(*Session)
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user := goth.User{
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AccessToken: sess.AccessToken,
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Provider: p.Name(),
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RefreshToken: sess.RefreshToken,
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ExpiresAt: sess.ExpiresAt,
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}
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if user.AccessToken == "" {
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// data is not yet retrieved since accessToken is still empty
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return user, fmt.Errorf("%s cannot get user information without accessToken", p.providerName)
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}
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req, err := http.NewRequest("GET", profileEndpoint, nil)
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if err != nil {
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return user, err
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}
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req.Header.Set("Authorization", "OAuth " + sess.AccessToken)
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resp, err := p.Client().Do(req)
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if err != nil {
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if resp != nil {
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resp.Body.Close()
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}
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return user, err
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return user, fmt.Errorf("%s responded with a %d trying to fetch user information", p.providerName, resp.StatusCode)
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}
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bits, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return user, err
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}
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err = json.NewDecoder(bytes.NewReader(bits)).Decode(&user.RawData)
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if err != nil {
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return user, err
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}
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err = userFromReader(bytes.NewReader(bits), &user)
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return user, err
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}
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func newConfig(provider *Provider, scopes []string) *oauth2.Config {
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c := &oauth2.Config{
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ClientID: provider.ClientKey,
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ClientSecret: provider.Secret,
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RedirectURL: provider.CallbackURL,
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Endpoint: oauth2.Endpoint{
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AuthURL: authEndpoint,
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TokenURL: tokenEndpoint,
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},
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Scopes: []string{},
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}
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if len(scopes) > 0 {
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for _, scope := range scopes {
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c.Scopes = append(c.Scopes, scope)
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}
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} else {
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c.Scopes = append(c.Scopes, "login:email login:info login:avatar")
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}
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return c
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}
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func userFromReader(r io.Reader, user *goth.User) error {
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u := struct {
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UserID string `json:"id"`
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Email string `json:"default_email"`
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Login string `json:"login"`
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Name string `json:"real_name"`
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FirstName string `json:"first_name"`
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LastName string `json:"last_name"`
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AvatarID string `json:"default_avatar_id"`
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IsAvatarEmpty bool `json:"is_avatar_empty"`
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}{}
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err := json.NewDecoder(r).Decode(&u)
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if err != nil {
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return err
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}
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user.UserID = u.UserID
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user.Email = u.Email
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user.NickName = u.Login
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user.Name = u.Name
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user.FirstName = u.FirstName
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user.LastName = u.LastName
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if u.AvatarID != `` {
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user.AvatarURL = fmt.Sprintf("%s/%s/%s", avatarURL, u.AvatarID, avatarSize)
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}
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return nil
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}
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//RefreshTokenAvailable refresh token is provided by auth provider or not
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func (p *Provider) RefreshTokenAvailable() bool {
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return true
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}
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//RefreshToken get new access token based on the refresh token
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func (p *Provider) RefreshToken(refreshToken string) (*oauth2.Token, error) {
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token := &oauth2.Token{RefreshToken: refreshToken}
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ts := p.config.TokenSource(goth.ContextForClient(p.Client()), token)
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newToken, err := ts.Token()
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if err != nil {
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return nil, err
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}
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return newToken, err
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}
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