casdoor/idp/github.go
2021-02-21 23:51:40 +08:00

121 lines
2.9 KiB
Go

// Copyright 2021 The casbin Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package idp
import (
"encoding/json"
"io/ioutil"
"net/http"
"sync"
"golang.org/x/oauth2"
)
type GithubIdProvider struct{}
func (idp *GithubIdProvider) GetConfig() *oauth2.Config {
var endpoint = oauth2.Endpoint{
AuthURL: "https://github.com/login/oauth/authorize",
TokenURL: "https://github.com/login/oauth/access_token",
}
var config = &oauth2.Config{
Scopes: []string{"user:email", "read:user"},
Endpoint: endpoint,
}
return config
}
func (idp *GithubIdProvider) getEmail(httpClient *http.Client, token *oauth2.Token) string {
res := ""
type GithubEmail struct {
Email string `json:"email"`
Primary bool `json:"primary"`
Verified bool `json:"verified"`
Visibility string `json:"visibility"`
}
var githubEmails []GithubEmail
req, err := http.NewRequest("GET", "https://api.github.com/user/emails", nil)
if err != nil {
panic(err)
}
req.Header.Add("Authorization", "token "+token.AccessToken)
response, err := httpClient.Do(req)
if err != nil {
panic(err)
}
defer response.Body.Close()
contents, err := ioutil.ReadAll(response.Body)
err = json.Unmarshal(contents, &githubEmails)
if err != nil {
panic(err)
}
for _, v := range githubEmails {
if v.Primary == true {
res = v.Email
break
}
}
return res
}
func (idp *GithubIdProvider) getLoginAndAvatar(httpClient *http.Client, token *oauth2.Token) (string, string) {
type GithubUser struct {
Login string `json:"login"`
AvatarUrl string `json:"avatar_url"`
}
var githubUser GithubUser
req, err := http.NewRequest("GET", "https://api.github.com/user", nil)
if err != nil {
panic(err)
}
req.Header.Add("Authorization", "token "+token.AccessToken)
resp, err := httpClient.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
contents2, err := ioutil.ReadAll(resp.Body)
err = json.Unmarshal(contents2, &githubUser)
if err != nil {
panic(err)
}
return githubUser.Login, githubUser.AvatarUrl
}
func (idp *GithubIdProvider) GetUserInfo(httpClient *http.Client, token *oauth2.Token) (string, string, string, error) {
var email, username, avatarUrl string
var wg sync.WaitGroup
wg.Add(2)
go func() {
email = idp.getEmail(httpClient, token)
wg.Done()
}()
go func() {
username, avatarUrl = idp.getLoginAndAvatar(httpClient, token)
wg.Done()
}()
wg.Wait()
return email, username, avatarUrl, nil
}