93 lines
3.2 KiB
Go
93 lines
3.2 KiB
Go
package postgres
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import (
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"context"
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"errors"
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"fmt"
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"math"
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"github.com/jackc/pgx/v5"
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"github.com/jackc/pgx/v5/pgconn"
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"telesrv/internal/domain"
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"telesrv/internal/store"
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"telesrv/internal/store/postgres/sqlcgen"
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)
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// TempAuthKeyBindingStore 用 PostgreSQL 实现 store.TempAuthKeyBindingStore。
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type TempAuthKeyBindingStore struct {
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q *sqlcgen.Queries
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}
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// NewTempAuthKeyBindingStore 基于 pgx 连接池（或事务）创建 TempAuthKeyBindingStore。
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func NewTempAuthKeyBindingStore(db sqlcgen.DBTX) *TempAuthKeyBindingStore {
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return &TempAuthKeyBindingStore{q: sqlcgen.New(db)}
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}
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func (s *TempAuthKeyBindingStore) Save(ctx context.Context, b domain.TempAuthKeyBinding) error {
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if b.ExpiresAt <= 0 || int64(b.ExpiresAt) > math.MaxInt32 {
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return store.ErrAuthKeyBindingInvalid
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}
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n, err := s.q.UpsertTempAuthKeyBinding(ctx, sqlcgen.UpsertTempAuthKeyBindingParams{
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TempAuthKeyID: authKeyIDToInt64(b.TempAuthKeyID),
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PermAuthKeyID: b.PermAuthKeyID,
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Nonce: b.Nonce,
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TempSessionID: b.TempSessionID,
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ExpiresAt: int32(b.ExpiresAt),
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EncryptedMessage: b.EncryptedMessage,
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})
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if err != nil {
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var pgErr *pgconn.PgError
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if errors.As(err, &pgErr) && pgErr.Code == "23503" {
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return store.ErrAuthKeyBindingInvalid
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}
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return fmt.Errorf("upsert temp auth key binding: %w", err)
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}
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if n == 0 {
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if current, found, getErr := s.GetByTemp(ctx, b.TempAuthKeyID); getErr != nil {
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return getErr
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} else if found && current.PermAuthKeyID != b.PermAuthKeyID {
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return store.ErrTempAuthKeyAlreadyBound
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}
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return store.ErrAuthKeyBindingInvalid
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}
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return nil
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}
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// DeleteExpired 实现 store.TempAuthKeyBindingStore：按 auth_keys.expires_at 的部分索引
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// 有界删除所有过期 temp key（含从未绑定的握手 key），binding 经 CASCADE 一并清除。
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// Edge 已在准确协议时刻停止使用 key；这里的 24h 宽限只控制数据库物理回收。
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func (s *TempAuthKeyBindingStore) DeleteExpired(ctx context.Context, expiredBefore int64, limit int) (int, error) {
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if limit <= 0 {
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return 0, nil
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}
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if expiredBefore <= 0 || expiredBefore > math.MaxInt32 {
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return 0, fmt.Errorf("delete expired temp auth keys: invalid expiry cutoff %d", expiredBefore)
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}
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n, err := s.q.DeleteExpiredTempAuthKeys(ctx, sqlcgen.DeleteExpiredTempAuthKeysParams{
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ExpiresAt: int32(expiredBefore),
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Limit: int32(limit),
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})
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if err != nil {
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return 0, fmt.Errorf("delete expired temp auth keys: %w", err)
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}
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return int(n), nil
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}
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func (s *TempAuthKeyBindingStore) GetByTemp(ctx context.Context, tempAuthKeyID [8]byte) (domain.TempAuthKeyBinding, bool, error) {
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row, err := s.q.GetTempAuthKeyBinding(ctx, authKeyIDToInt64(tempAuthKeyID))
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if err != nil {
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if errors.Is(err, pgx.ErrNoRows) {
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return domain.TempAuthKeyBinding{}, false, nil
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}
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return domain.TempAuthKeyBinding{}, false, fmt.Errorf("get temp auth key binding: %w", err)
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}
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return domain.TempAuthKeyBinding{
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TempAuthKeyID: authKeyIDFromInt64(row.TempAuthKeyID),
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PermAuthKeyID: row.PermAuthKeyID,
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Nonce: row.Nonce,
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TempSessionID: row.TempSessionID,
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ExpiresAt: int(row.ExpiresAt),
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EncryptedMessage: append([]byte(nil), row.EncryptedMessage...),
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}, true, nil
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}
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