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package main
import (
"database/sql"
"log"
_ "github.com/lib/pq"
)
type Session struct {
Id string
UserId int64
}
type User struct {
Id int64
UserName string
Password []byte
}
type Store interface {
GetSession(id string) (*Session, bool)
GetUser(name string) (*User, bool)
}
type PgStore struct {
*sql.DB
sessionCache map[string]*Session
}
func NewPgStore() *PgStore {
db, err := sql.Open("postgres", "postgres://auth_master:pass@localhost/authdb")
if err != nil {
log.Panic(err)
}
return &PgStore{db, make(map[string]*Session)}
}
func (store *PgStore) GetSession(id string) (*Session, bool) {
s, ok := store.sessionCache[id]
if ok {
return s, true
}
s = new(Session)
row := store.QueryRow("SELECT id, user_id FROM session WHERE id = $1", id)
if err := row.Scan(s.Id, s.UserId); err != nil {
return nil, false
}
return s, true
}
func (store *PgStore) GetUser(name string) (*User, bool) {
u := new(User)
row := store.QueryRow("SELECT id, user_name, password FROM user WHERE user_name = $1", name)
if err := row.Scan(u.Id, u.UserName, u.Password); err != nil {
return nil, false
}
return u, true
}
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