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61 lines
1.6 KiB
61 lines
1.6 KiB
package auth
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import (
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"context"
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"encoding/json"
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"github.com/pkg/errors"
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"golang.org/x/oauth2"
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"golang.org/x/oauth2/google"
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)
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type googleAdapter struct {
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config *oauth2.Config
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}
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// NewGoogleAdapter creates an oAuth adapter out of the credentials and the baseURL
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func NewGoogleAdapter(clientID, clientSecret, baseURL string) Adapter {
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return &googleAdapter{&oauth2.Config{
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ClientID: clientID,
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ClientSecret: clientSecret,
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RedirectURL: baseURL + "/api/v1/auth/google/callback",
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Scopes: []string{
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"https://www.googleapis.com/auth/userinfo.email",
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},
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Endpoint: google.Endpoint,
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}}
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}
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func (a *googleAdapter) GetRedirectURL(state string) string {
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return a.config.AuthCodeURL(state)
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}
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func (a *googleAdapter) GetUserData(state, code string) (*user, error) {
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oAuthToken, err := a.config.Exchange(context.Background(), code)
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if err != nil {
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return nil, errors.Wrap(err, "could not exchange code")
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}
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oAuthUserInfoReq, err := a.config.Client(context.Background(), oAuthToken).Get("https://www.googleapis.com/oauth2/v3/userinfo")
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if err != nil {
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return nil, errors.Wrap(err, "could not get user data")
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}
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defer oAuthUserInfoReq.Body.Close()
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var gUser struct {
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Sub string `json:"sub"`
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Name string `json:"name"`
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Picture string `json:"picture"`
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}
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if err = json.NewDecoder(oAuthUserInfoReq.Body).Decode(&gUser); err != nil {
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return nil, errors.Wrap(err, "decoding user info failed")
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}
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return &user{
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ID: gUser.Sub,
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Name: gUser.Name,
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Picture: gUser.Picture,
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}, nil
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}
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func (a *googleAdapter) GetOAuthProviderName() string {
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return "google"
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}
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