call loginBegin -> ask third party server -> call loginFinish -> handle authorization result

1. isAuthorized
2. isRegisted

• Gen return url
• Ask third party remote server
• Third party server back return result to return url

• Check third party server run result
• if succcess redirect to success page else go to error page

• mkdir test_folder
• curl -sS https://getcomposer.org/installer | php

• vim composer.json

{
    "require": {
        "pmvc-plugin/auth": "dev-master"
    }
}

• php composer.phar install

• php composer.phar require pmvc-plugin/auth