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// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package oauth2 // import "miniflux.app/v2/internal/oauth2"
import (
"context"
"encoding/json"
"fmt"
"miniflux.app/v2/internal/model"
"golang.org/x/oauth2"
)
type googleProfile struct {
Sub string `json:"sub"`
Email string `json:"email"`
}
type googleProvider struct {
clientID string
clientSecret string
redirectURL string
}
func NewGoogleProvider(clientID, clientSecret, redirectURL string) *googleProvider {
return &googleProvider{clientID: clientID, clientSecret: clientSecret, redirectURL: redirectURL}
}
func (g *googleProvider) GetConfig() *oauth2.Config {
return &oauth2.Config{
RedirectURL: g.redirectURL,
ClientID: g.clientID,
ClientSecret: g.clientSecret,
Scopes: []string{"email"},
Endpoint: oauth2.Endpoint{
AuthURL: "https://accounts.google.com/o/oauth2/auth",
TokenURL: "https://accounts.google.com/o/oauth2/token",
},
}
}
func (g *googleProvider) GetUserExtraKey() string {
return "google_id"
}
func (g *googleProvider) GetProfile(ctx context.Context, code, codeVerifier string) (*Profile, error) {
conf := g.GetConfig()
token, err := conf.Exchange(ctx, code, oauth2.SetAuthURLParam("code_verifier", codeVerifier))
if err != nil {
return nil, fmt.Errorf("google: failed to exchange token: %w", err)
}
client := conf.Client(ctx, token)
resp, err := client.Get("https://www.googleapis.com/oauth2/v3/userinfo")
if err != nil {
return nil, fmt.Errorf("google: failed to get user info: %w", err)
}
defer resp.Body.Close()
var user googleProfile
decoder := json.NewDecoder(resp.Body)
if err := decoder.Decode(&user); err != nil {
return nil, fmt.Errorf("google: unable to unserialize Google profile: %w", err)
}
profile := &Profile{Key: g.GetUserExtraKey(), ID: user.Sub, Username: user.Email}
return profile, nil
}
func (g *googleProvider) PopulateUserCreationWithProfileID(user *model.UserCreationRequest, profile *Profile) {
user.GoogleID = profile.ID
}
func (g *googleProvider) PopulateUserWithProfileID(user *model.User, profile *Profile) {
user.GoogleID = profile.ID
}
func (g *googleProvider) UnsetUserProfileID(user *model.User) {
user.GoogleID = ""
}
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