github.com/ngocphuongnb/tetua@v0.0.7-alpha/packages/auth/twitter.go (about)

     1  package auth
     2  
     3  import (
     4  	"encoding/json"
     5  	"errors"
     6  	"io/ioutil"
     7  
     8  	"github.com/dghubble/oauth1"
     9  	"github.com/dghubble/oauth1/twitter"
    10  	"github.com/ngocphuongnb/tetua/app/auth"
    11  	"github.com/ngocphuongnb/tetua/app/config"
    12  	"github.com/ngocphuongnb/tetua/app/entities"
    13  	"github.com/ngocphuongnb/tetua/app/server"
    14  	"github.com/ngocphuongnb/tetua/app/utils"
    15  )
    16  
    17  const oauthTwitterUrlAPI = "https://api.twitter.com/1.1/account/verify_credentials.json"
    18  
    19  type TwitterUserResponse struct {
    20  	ID                   int    `json:"id"`
    21  	IDStr                string `json:"id_str"`
    22  	Name                 string `json:"name"`
    23  	ScreenName           string `json:"screen_name"`
    24  	Email                string `json:"email"`
    25  	ProfileImageUrlHttps string `json:"profile_image_url_https"`
    26  }
    27  
    28  type TwitterAuthProvider struct {
    29  	config *oauth1.Config
    30  }
    31  
    32  func NewTwitter(cfg map[string]string) server.AuthProvider {
    33  	if cfg["consumer_key"] == "" || cfg["consumer_secret"] == "" {
    34  		panic("Github client id or secret is not set")
    35  	}
    36  
    37  	return &TwitterAuthProvider{
    38  		config: &oauth1.Config{
    39  			ConsumerKey:    cfg["consumer_key"],
    40  			ConsumerSecret: cfg["consumer_secret"],
    41  			CallbackURL:    utils.Url("/auth/twitter/callback"),
    42  			Endpoint:       twitter.AuthorizeEndpoint,
    43  		},
    44  	}
    45  }
    46  
    47  func (g *TwitterAuthProvider) Name() string {
    48  	return "twitter"
    49  }
    50  
    51  func (g *TwitterAuthProvider) Login(c server.Context) error {
    52  	requestToken, _, err := g.config.RequestToken()
    53  	url, err := g.config.AuthorizationURL(requestToken)
    54  
    55  	if err != nil {
    56  		return err
    57  	}
    58  
    59  	return c.Redirect(url.String())
    60  }
    61  
    62  func (g *TwitterAuthProvider) Callback(c server.Context) (u *entities.User, err error) {
    63  	requestToken := c.Query("oauth_token")
    64  	verifier := c.Query("oauth_verifier")
    65  
    66  	if requestToken == "" || verifier == "" {
    67  		return nil, errors.New("oauth1: Request missing oauth_token or oauth_verifier")
    68  	}
    69  
    70  	accessToken, accessSecret, err := g.config.AccessToken(requestToken, "", verifier)
    71  
    72  	if err != nil {
    73  		return nil, err
    74  	}
    75  
    76  	token := oauth1.NewToken(accessToken, accessSecret)
    77  	httpClient := g.config.Client(oauth1.NoContext, token)
    78  	resp, err := httpClient.Get(oauthTwitterUrlAPI)
    79  
    80  	if err != nil {
    81  		return nil, err
    82  	}
    83  
    84  	defer resp.Body.Close()
    85  
    86  	body, err := ioutil.ReadAll(resp.Body)
    87  
    88  	if err != nil {
    89  		return nil, err
    90  	}
    91  
    92  	userResponse := &TwitterUserResponse{}
    93  	if err := json.Unmarshal(body, userResponse); err != nil {
    94  		return nil, err
    95  	}
    96  
    97  	return &entities.User{
    98  		Provider:         "twitter",
    99  		ProviderID:       utils.SanitizePlainText(userResponse.IDStr),
   100  		Username:         utils.SanitizePlainText(userResponse.ScreenName),
   101  		Email:            utils.SanitizePlainText(userResponse.Email),
   102  		ProviderAvatar:   utils.SanitizePlainText(userResponse.ProfileImageUrlHttps),
   103  		DisplayName:      utils.SanitizePlainText(userResponse.Name),
   104  		URL:              utils.SanitizePlainText(""),
   105  		ProviderUsername: utils.SanitizePlainText(userResponse.ScreenName),
   106  		RoleIDs:          []int{auth.ROLE_USER.ID},
   107  		Active:           config.Setting("auto_approve_user") == "yes",
   108  	}, nil
   109  }