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75 lines
1.8 KiB
Go
75 lines
1.8 KiB
Go
// Copyright 2017 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package oauth2 // import "miniflux.app/oauth2"
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import (
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"context"
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"encoding/json"
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"fmt"
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"golang.org/x/oauth2"
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)
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type googleProfile struct {
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Sub string `json:"sub"`
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Email string `json:"email"`
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}
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type googleProvider struct {
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clientID string
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clientSecret string
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redirectURL string
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}
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func (g googleProvider) GetUserExtraKey() string {
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return "google_id"
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}
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func (g googleProvider) GetRedirectURL(state string) string {
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return g.config().AuthCodeURL(state)
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}
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func (g googleProvider) GetProfile(code string) (*Profile, error) {
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conf := g.config()
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ctx := context.Background()
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token, err := conf.Exchange(ctx, code)
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if err != nil {
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return nil, err
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}
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client := conf.Client(ctx, token)
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resp, err := client.Get("https://www.googleapis.com/oauth2/v3/userinfo")
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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var user googleProfile
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decoder := json.NewDecoder(resp.Body)
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if err := decoder.Decode(&user); err != nil {
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return nil, fmt.Errorf("unable to unserialize google profile: %v", err)
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}
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profile := &Profile{Key: g.GetUserExtraKey(), ID: user.Sub, Username: user.Email}
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return profile, nil
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}
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func (g googleProvider) config() *oauth2.Config {
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return &oauth2.Config{
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RedirectURL: g.redirectURL,
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ClientID: g.clientID,
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ClientSecret: g.clientSecret,
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Scopes: []string{"email"},
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Endpoint: oauth2.Endpoint{
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AuthURL: "https://accounts.google.com/o/oauth2/auth",
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TokenURL: "https://accounts.google.com/o/oauth2/token",
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},
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}
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}
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func newGoogleProvider(clientID, clientSecret, redirectURL string) *googleProvider {
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return &googleProvider{clientID: clientID, clientSecret: clientSecret, redirectURL: redirectURL}
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}
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