| 1 | package console |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "database/sql" |
| 6 | "time" |
| 7 | |
| 8 | "github.com/carlosframework/platform/internal/hostops" |
| 9 | ) |
| 10 | |
| 11 | // migrateClaimAppIdentity is boot-seam schema work: it runs on the trusted, |
| 12 | // unvetted boot handle, before OpenGated's census arms the gate (and is an |
| 13 | // idempotent check afterwards). |
| 14 | func (s *Store) migrateClaimAppIdentity() error { |
| 15 | rows, err := s.bootDB().Query(`PRAGMA table_info(apps)`) |
| 16 | if err != nil { |
| 17 | return err |
| 18 | } |
| 19 | found := map[string]bool{} |
| 20 | for rows.Next() { |
| 21 | var cid, notnull, pk int |
| 22 | var name, kind string |
| 23 | var defaultValue sql.NullString |
| 24 | if err = rows.Scan(&cid, &name, &kind, ¬null, &defaultValue, &pk); err != nil { |
| 25 | rows.Close() |
| 26 | return err |
| 27 | } |
| 28 | found[name] = true |
| 29 | } |
| 30 | err = rows.Err() |
| 31 | rows.Close() |
| 32 | if err != nil { |
| 33 | return err |
| 34 | } |
| 35 | for _, column := range []struct{ name, ddl string }{ |
| 36 | {"app_id", `ALTER TABLE apps ADD COLUMN app_id TEXT NOT NULL DEFAULT ''`}, |
| 37 | {"claim_op", `ALTER TABLE apps ADD COLUMN claim_op TEXT NOT NULL DEFAULT ''`}, |
| 38 | {"claim_revision", `ALTER TABLE apps ADD COLUMN claim_revision INTEGER NOT NULL DEFAULT 0`}, |
| 39 | } { |
| 40 | if !found[column.name] { |
| 41 | if _, err = s.bootDB().Exec(column.ddl); err != nil { |
| 42 | return err |
| 43 | } |
| 44 | } |
| 45 | } |
| 46 | for _, statement := range []string{ |
| 47 | `CREATE UNIQUE INDEX IF NOT EXISTS apps_claim_identity ON apps(app_id) WHERE app_id!=''`, |
| 48 | } { |
| 49 | if _, err = s.bootDB().Exec(statement); err != nil { |
| 50 | return err |
| 51 | } |
| 52 | } |
| 53 | return nil |
| 54 | } |
| 55 | |
| 56 | // ClaimAppID is the row's bound incarnation. sql.ErrNoRows when there is no |
| 57 | // row; hostops.ErrIdentity when the row is not bound yet. |
| 58 | func (s *Store) ClaimAppID(accountID int64, app string) (string, error) { |
| 59 | var id string |
| 60 | err := s.db.QueryRow(`SELECT app_id FROM apps WHERE account_id=? AND app=?`, accountID, app).Scan(&id) |
| 61 | if err == nil && id == "" { |
| 62 | return "", hostops.ErrIdentity |
| 63 | } |
| 64 | return id, err |
| 65 | } |
| 66 | |
| 67 | func (s *Store) BindClaimAppOperation(accountID int64, app, appID, op string, revision uint64) error { |
| 68 | result, err := s.db.Exec(`UPDATE apps SET claim_op=?,claim_revision=? WHERE account_id=? AND app=? AND app_id=? AND (claim_revision<? OR (claim_revision=? AND claim_op=?))`, |
| 69 | op, revision, accountID, app, appID, revision, revision, op) |
| 70 | if err != nil { |
| 71 | return err |
| 72 | } |
| 73 | n, err := result.RowsAffected() |
| 74 | if err != nil { |
| 75 | return err |
| 76 | } |
| 77 | if n != 1 { |
| 78 | return hostops.ErrPending |
| 79 | } |
| 80 | return nil |
| 81 | } |
| 82 | |
| 83 | func (s *Store) SetClaimAppPlacement(accountID int64, app, appID, op, target string) error { |
| 84 | result, err := s.db.Exec(`UPDATE apps SET placement=? WHERE account_id=? AND app=? AND app_id=? AND claim_op=?`, target, accountID, app, appID, op) |
| 85 | if err != nil { |
| 86 | return err |
| 87 | } |
| 88 | n, err := result.RowsAffected() |
| 89 | if err != nil { |
| 90 | return err |
| 91 | } |
| 92 | if n != 1 { |
| 93 | return hostops.ErrPending |
| 94 | } |
| 95 | return nil |
| 96 | } |
| 97 | |
| 98 | // TrashClaimAppRow is TrashAppRow bound to the incarnation: the marker's |
| 99 | // clock, the temporary row's early-purge window, first trash wins. |
| 100 | func (s *Store) TrashClaimAppRow(accountID int64, app, appID string, at time.Time) (bool, error) { |
| 101 | sec := at.Unix() |
| 102 | return s.changed(`UPDATE apps SET deleted_at = ?, |
| 103 | purge_for = CASE WHEN expires_at > 0 THEN ? ELSE 0 END, |
| 104 | purge_after = CASE WHEN expires_at > 0 THEN ? ELSE 0 END |
| 105 | WHERE account_id = ? AND app = ? AND app_id = ? AND deleted_at = 0`, |
| 106 | sec, sec, sec+temporaryCooloffSeconds, accountID, app, appID) |
| 107 | } |
| 108 | |
| 109 | // SetClaimRestoring is SetRestoring bound to the incarnation. |
| 110 | func (s *Store) SetClaimRestoring(accountID int64, app, appID string, on bool) (bool, error) { |
| 111 | if on { |
| 112 | return s.changed(`UPDATE apps SET restoring = 1 WHERE account_id = ? AND app = ? AND app_id = ? AND deleted_at != 0`, accountID, app, appID) |
| 113 | } |
| 114 | return s.changed(`UPDATE apps SET restoring = 0 WHERE account_id = ? AND app = ? AND app_id = ? AND restoring != 0`, accountID, app, appID) |
| 115 | } |
| 116 | |
| 117 | // BumpClaimTrashedExpiry is BumpTrashedExpiry bound to the incarnation. |
| 118 | func (s *Store) BumpClaimTrashedExpiry(accountID int64, app, appID string, now time.Time) (bool, error) { |
| 119 | return s.changed(`UPDATE apps SET expires_at = ? |
| 120 | WHERE account_id = ? AND app = ? AND app_id = ? AND expires_at > 0 AND expires_at < ? AND deleted_at != 0`, |
| 121 | now.Add(temporaryTTLDefault).Unix(), accountID, app, appID, now.Add(temporaryRestoreFloor).Unix()) |
| 122 | } |
| 123 | |
| 124 | // FinishClaimRestoreRow is FinishRestoreRow (restore step 5, with the |
| 125 | // temporary app's expiry bump folded in as projection) bound to the |
| 126 | // incarnation and to the receipt: only a row trashed by exactly the receipt's |
| 127 | // marker (deleted_at = the marker's clock) is restored. A row trashed by any |
| 128 | // other trash keeps its trash. |
| 129 | func (s *Store) FinishClaimRestoreRow(accountID int64, app, appID string, receiptDeletedAt int64, now time.Time) (bool, error) { |
| 130 | if receiptDeletedAt <= 0 { |
| 131 | return false, hostops.ErrIdentity |
| 132 | } |
| 133 | return s.changed(`UPDATE apps SET deleted_at = 0, restoring = 0, purge_after = 0, purge_for = 0, |
| 134 | expires_at = CASE WHEN expires_at > 0 AND expires_at < ? THEN ? ELSE expires_at END |
| 135 | WHERE account_id = ? AND app = ? AND app_id = ? AND deleted_at = ?`, |
| 136 | now.Add(temporaryRestoreFloor).Unix(), now.Add(temporaryTTLDefault).Unix(), accountID, app, appID, receiptDeletedAt) |
| 137 | } |
| 138 | |
| 139 | // MarkClaimAppRetired hides a row whose incarnation a completed purge |
| 140 | // retired, so PurgeClaimAppRow's deleted_at != 0 guard holds on a console |
| 141 | // that never saw the marker. |
| 142 | func (s *Store) MarkClaimAppRetired(accountID int64, app, appID string, now time.Time) error { |
| 143 | _, err := s.db.Exec(`UPDATE apps SET deleted_at=? WHERE account_id=? AND app=? AND app_id=? AND deleted_at=0`, now.Unix(), accountID, app, appID) |
| 144 | return err |
| 145 | } |
| 146 | |
| 147 | func (s *Store) PurgeClaimAppRow(ctx context.Context, accountID int64, app, appID, op string) error { |
| 148 | tx, err := s.db.BeginTx(ctx, nil) |
| 149 | if err != nil { |
| 150 | return err |
| 151 | } |
| 152 | defer tx.Rollback() |
| 153 | var current string |
| 154 | err = tx.QueryRowContext(ctx, `SELECT app_id FROM apps WHERE account_id=? AND app=?`, accountID, app).Scan(¤t) |
| 155 | if err == sql.ErrNoRows { |
| 156 | return tx.Commit() |
| 157 | } |
| 158 | if err != nil { |
| 159 | return err |
| 160 | } |
| 161 | if current != appID { |
| 162 | return hostops.ErrIdentity |
| 163 | } |
| 164 | res, err := tx.ExecContext(ctx, `DELETE FROM apps WHERE account_id=? AND app=? AND app_id=? AND claim_op=? AND deleted_at!=0`, accountID, app, appID, op) |
| 165 | if err != nil { |
| 166 | return err |
| 167 | } |
| 168 | n, err := res.RowsAffected() |
| 169 | if err != nil { |
| 170 | return err |
| 171 | } |
| 172 | if n != 1 { |
| 173 | return hostops.ErrPending |
| 174 | } |
| 175 | var sqid string |
| 176 | if err = tx.QueryRowContext(ctx, `SELECT sqid FROM accounts WHERE id=?`, accountID).Scan(&sqid); err != nil { |
| 177 | return err |
| 178 | } |
| 179 | if err = forgetMailApp(ctx, tx, sqid, app); err != nil { |
| 180 | return err |
| 181 | } |
| 182 | if _, err = tx.ExecContext(ctx, `DELETE FROM cli_tokens WHERE kind IN (?,?) AND account_id=? AND app=?`, cliKindApp, cliKindService, accountID, app); err != nil { |
| 183 | return err |
| 184 | } |
| 185 | if err = revokeClaimDoorKeys(tx, accountID, app); err != nil { |
| 186 | return err |
| 187 | } |
| 188 | return tx.Commit() |
| 189 | } |
| 190 | |
| 191 | // revokeClaimDoorKeys is revokeAllDoorKeys for the claim purge. A purge |
| 192 | // permit may only raise door_keys.revoked_at and door_key_revisions.revision |
| 193 | // (never insert), so the revision moves by a plain UPDATE: an app that has |
| 194 | // keys always has its revision row, written in the same transaction as the |
| 195 | // key (DoorKeyInsert). The revision still climbs past what boxes admitted. |
| 196 | func revokeClaimDoorKeys(tx *sql.Tx, accountID int64, app string) error { |
| 197 | res, err := tx.Exec(`UPDATE door_keys SET revoked_at = ? WHERE account_id = ? AND app = ? AND revoked_at = 0`, |
| 198 | time.Now().UnixNano(), accountID, app) |
| 199 | if err != nil { |
| 200 | return err |
| 201 | } |
| 202 | if n, err := res.RowsAffected(); err != nil || n == 0 { |
| 203 | return err |
| 204 | } |
| 205 | _, err = tx.Exec(`UPDATE door_key_revisions SET revision = revision + 1 WHERE account_id = ? AND app = ?`, accountID, app) |
| 206 | return err |
| 207 | } |
| 208 | |
amadan