Imports github.com/go-sql-driver/mysql github.com/gorilla/mux github.com/gorilla/sessions golang.org/x/oauth2 Standard library imports crypto/aes crypto/cipher crypto/md5 crypto/rand database/sql database/sql/driver encoding/base64 encoding/gob encoding/hex encoding/json errors flag fmt html/template io io/ioutil math/rand net/http net/url os strings time