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synctv/internal/provider/providers/google.go

82 lines
1.9 KiB
Go

package providers
import (
"context"
"net/http"
json "github.com/json-iterator/go"
"github.com/synctv-org/synctv/internal/provider"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
)
type GoogleProvider struct {
config oauth2.Config
}
func newGoogleProvider() provider.Interface {
return &GoogleProvider{
config: oauth2.Config{
Scopes: []string{"profile"},
Endpoint: google.Endpoint,
},
}
}
func (g *GoogleProvider) Init(c provider.Oauth2Option) {
g.config.ClientID = c.ClientID
g.config.ClientSecret = c.ClientSecret
g.config.RedirectURL = c.RedirectURL
}
func (g *GoogleProvider) Provider() provider.OAuth2Provider {
return "google"
}
func (g *GoogleProvider) NewAuthURL(ctx context.Context, state string) (string, error) {
return g.config.AuthCodeURL(state, oauth2.AccessTypeOnline), nil
}
func (g *GoogleProvider) GetToken(ctx context.Context, code string) (*oauth2.Token, error) {
return g.config.Exchange(ctx, code)
}
func (g *GoogleProvider) RefreshToken(ctx context.Context, tk string) (*oauth2.Token, error) {
return g.config.TokenSource(ctx, &oauth2.Token{RefreshToken: tk}).Token()
}
func (g *GoogleProvider) GetUserInfo(ctx context.Context, code string) (*provider.UserInfo, error) {
tk, err := g.GetToken(ctx, code)
if err != nil {
return nil, err
}
client := g.config.Client(ctx, tk)
req, err := http.NewRequestWithContext(ctx, http.MethodGet, "https://www.googleapis.com/oauth2/v2/userinfo", nil)
if err != nil {
return nil, err
}
resp, err := client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
ui := googleUserInfo{}
err = json.NewDecoder(resp.Body).Decode(&ui)
if err != nil {
return nil, err
}
return &provider.UserInfo{
Username: ui.Name,
ProviderUserID: ui.ID,
}, nil
}
func init() {
RegisterProvider(newGoogleProvider())
}
type googleUserInfo struct {
ID string `json:"id"`
Name string `json:"name"`
}