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github.go
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github.go
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/*
* Copyright 2020 The Dragonfly Authors
*
* 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 oauth
import (
"context"
"crypto/rand"
"encoding/base64"
"github.com/google/go-github/github"
"golang.org/x/oauth2"
oauth2github "golang.org/x/oauth2/github"
)
var githubScopes = []string{
"user",
"public_repo",
}
type oauthGithub struct {
*oauth2.Config
}
func newGithub(name, clientID, clientSecret, redirectURL string) *oauthGithub {
return &oauthGithub{
Config: &oauth2.Config{
ClientID: clientID,
ClientSecret: clientSecret,
Scopes: githubScopes,
Endpoint: oauth2github.Endpoint,
RedirectURL: redirectURL,
},
}
}
func (g *oauthGithub) AuthCodeURL() (string, error) {
b := make([]byte, 16)
if _, err := rand.Read(b); err != nil {
return "", err
}
return g.Config.AuthCodeURL(base64.URLEncoding.EncodeToString(b)), nil
}
func (g *oauthGithub) Exchange(code string) (*oauth2.Token, error) {
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
return g.Config.Exchange(ctx, code)
}
func (g *oauthGithub) GetUser(token *oauth2.Token) (*User, error) {
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
client := github.NewClient(g.Client(ctx, token))
user, _, err := client.Users.Get(ctx, "")
if err != nil {
return nil, err
}
return &User{
Name: *user.Name,
Email: *user.Email,
Avatar: *user.AvatarURL,
}, nil
}