110 lines
2.4 KiB
Go
110 lines
2.4 KiB
Go
package db
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import (
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"errors"
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"fmt"
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"time"
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"github.com/coopernurse/gorp"
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"github.com/jonboulle/clockwork"
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"github.com/lib/pq"
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"github.com/coreos/dex/pkg/log"
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"github.com/coreos/dex/session"
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)
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const (
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sessionKeyTableName = "session_key"
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)
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func init() {
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register(table{
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name: sessionKeyTableName,
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model: sessionKeyModel{},
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autoinc: false,
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pkey: []string{"key"},
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})
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}
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type sessionKeyModel struct {
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Key string `db:"key"`
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SessionID string `db:"session_id"`
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ExpiresAt int64 `db:"expires_at"`
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Stale bool `db:"stale"`
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}
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func NewSessionKeyRepo(dbm *gorp.DbMap) *SessionKeyRepo {
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return NewSessionKeyRepoWithClock(dbm, clockwork.NewRealClock())
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}
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func NewSessionKeyRepoWithClock(dbm *gorp.DbMap, clock clockwork.Clock) *SessionKeyRepo {
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return &SessionKeyRepo{dbMap: dbm, clock: clock}
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}
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type SessionKeyRepo struct {
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dbMap *gorp.DbMap
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clock clockwork.Clock
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}
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func (r *SessionKeyRepo) Push(sk session.SessionKey, exp time.Duration) error {
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skm := &sessionKeyModel{
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Key: sk.Key,
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SessionID: sk.SessionID,
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ExpiresAt: r.clock.Now().Unix() + int64(exp.Seconds()),
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Stale: false,
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}
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return r.dbMap.Insert(skm)
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}
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func (r *SessionKeyRepo) Pop(key string) (string, error) {
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m, err := r.dbMap.Get(sessionKeyModel{}, key)
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if err != nil {
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return "", err
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}
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skm, ok := m.(*sessionKeyModel)
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if !ok {
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return "", errors.New("unrecognized model")
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}
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if skm.Stale || skm.ExpiresAt < r.clock.Now().Unix() {
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return "", errors.New("invalid session key")
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}
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qt := pq.QuoteIdentifier(sessionKeyTableName)
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q := fmt.Sprintf("UPDATE %s SET stale=$1 WHERE key=$2 AND stale=$3", qt)
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res, err := r.dbMap.Exec(q, true, key, false)
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if err != nil {
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return "", err
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}
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if n, err := res.RowsAffected(); n != 1 {
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if err != nil {
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log.Errorf("Failed determining rows affected by UPDATE session_key query: %v", err)
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}
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return "", fmt.Errorf("failed to pop entity")
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}
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return skm.SessionID, nil
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}
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func (r *SessionKeyRepo) purge() error {
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qt := pq.QuoteIdentifier(sessionKeyTableName)
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q := fmt.Sprintf("DELETE FROM %s WHERE stale = $1 OR expires_at < $2", qt)
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res, err := r.dbMap.Exec(q, true, r.clock.Now().Unix())
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if err != nil {
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return err
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}
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d := "unknown # of"
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if n, err := res.RowsAffected(); err == nil {
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if n == 0 {
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return nil
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}
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d = fmt.Sprintf("%d", n)
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}
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log.Infof("Deleted %s stale row(s) from %s table", d, sessionKeyTableName)
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return nil
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}
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