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google_service.go
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google_service.go
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package service
import (
"errors"
"github.com/HackIllinois/api/services/auth/config"
"github.com/HackIllinois/api/services/auth/models"
"github.com/levigross/grequests"
)
/*
Uses a valid oauth token to get the user's primary email
*/
func GetGoogleEmail(oauth_token string) (string, bool, error) {
request, err := grequests.Get("https://www.googleapis.com/oauth2/v1/userinfo?alt=json", &grequests.RequestOptions{
Headers: map[string]string{"Authorization": "Bearer " + oauth_token},
})
if err != nil {
return "", false, err
}
var user_info models.GoogleUserInfo
err = request.JSON(&user_info)
if err != nil {
return "", false, err
}
if user_info.Email == "" {
return "", false, errors.New("Invalid oauth token")
}
return user_info.Email, user_info.IsVerified, nil
}
/*
Uses a valid oauth code to get a valid oauth token for the user
*/
func GetGoogleOauthToken(code string, redirect_uri string) (string, error) {
request, err := grequests.Post("https://www.googleapis.com/oauth2/v4/token", &grequests.RequestOptions{
Params: map[string]string{
"client_id": config.GOOGLE_CLIENT_ID,
"client_secret": config.GOOGLE_CLIENT_SECRET,
"code": code,
"redirect_uri": redirect_uri,
"grant_type": "authorization_code",
},
Headers: map[string]string{
"Accept": "application/json",
},
})
if err != nil {
return "", err
}
var oauth_token models.GoogleOauthToken
err = request.JSON(&oauth_token)
if err != nil {
return "", err
}
if oauth_token.Token == "" {
return "", errors.New("Invalid oauth code")
}
return oauth_token.Token, nil
}
/*
Uses a valid oauth token to get the user's unique id
*/
func GetGoogleUniqueId(oauth_token string) (string, error) {
request, err := grequests.Get("https://www.googleapis.com/oauth2/v1/userinfo?alt=json", &grequests.RequestOptions{
Headers: map[string]string{"Authorization": "Bearer " + oauth_token},
})
if err != nil {
return "", err
}
var user_info models.GoogleUserInfo
err = request.JSON(&user_info)
if err != nil {
return "", err
}
if user_info.ID == "" {
return "", errors.New("Invalid oauth token")
}
return "google" + user_info.ID, nil
}
/*
Uses a valid oauth token to get the user's username
*/
func GetGoogleUsername(oauth_token string) (string, error) {
request, err := grequests.Get("https://www.googleapis.com/oauth2/v1/userinfo?alt=json", &grequests.RequestOptions{
Headers: map[string]string{"Authorization": "Bearer " + oauth_token},
})
if err != nil {
return "", err
}
var user_info models.GoogleUserInfo
err = request.JSON(&user_info)
if err != nil {
return "", err
}
if user_info.Name == "" {
return "", errors.New("Invalid oauth token")
}
return user_info.Name, nil
}
/*
Uses a valid oauth token to get the user's first name
*/
func GetGoogleFirstName(oauth_token string) (string, error) {
request, err := grequests.Get("https://www.googleapis.com/oauth2/v1/userinfo?alt=json", &grequests.RequestOptions{
Headers: map[string]string{"Authorization": "Bearer " + oauth_token},
})
if err != nil {
return "", err
}
var user_info models.GoogleUserInfo
err = request.JSON(&user_info)
if err != nil {
return "", err
}
if user_info.FirstName == "" {
return "", errors.New("Invalid oauth token")
}
return user_info.FirstName, nil
}
/*
Uses a valid oauth token to get the user's last name
*/
func GetGoogleLastName(oauth_token string) (string, error) {
request, err := grequests.Get("https://www.googleapis.com/oauth2/v1/userinfo?alt=json", &grequests.RequestOptions{
Headers: map[string]string{"Authorization": "Bearer " + oauth_token},
})
if err != nil {
return "", err
}
var user_info models.GoogleUserInfo
err = request.JSON(&user_info)
if err != nil {
return "", err
}
if user_info.LastName == "" {
return "", errors.New("Invalid oauth token")
}
return user_info.LastName, nil
}