def oauth_callback(provider):
if not current_user.is_anonymous:
return redirect(url_for('index'))
oauth = OAuthSignIn.get_provider(provider)
result = oauth.callback()
if result.get('error'):
# Need a valid email address for user identification
return redirect(
url_for('index',
error=result['error'] + ": " +
result['error_description']))
app.user = User.find_or_create_by_email(result['email'])
app.user.username = result['name']
app.user.family_name = result['family_name']
app.user.nickname = result['nickname']
app.user.preferred_username = result['preferred_username']
# Log in the user, by default remembering them for their next visit
# unless they log out.
login_user(app.user, remember=True)
return redirect(result['next_page'])
