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| 1 | +-- Copyright (C) 2024-present Puter Technologies Inc. |
| 2 | +-- |
| 3 | +-- This file is part of Puter. |
| 4 | +-- |
| 5 | +-- Puter is free software: you can redistribute it and/or modify |
| 6 | +-- it under the terms of the GNU Affero General Public License as published |
| 7 | +-- by the Free Software Foundation, either version 3 of the License, or |
| 8 | +-- (at your option) any later version. |
| 9 | +-- |
| 10 | +-- This program is distributed in the hope that it will be useful, |
| 11 | +-- but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | +-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | +-- GNU Affero General Public License for more details. |
| 14 | +-- |
| 15 | +-- You should have received a copy of the GNU Affero General Public License |
| 16 | +-- along with this program. If not, see <https://www.gnu.org/licenses/>. |
| 17 | + |
| 18 | +-- AUTH-2 (PUT-1014) — composite-key lookups + audit columns. Mirrors |
| 19 | +-- SQLite migration 0052. MySQL has no partial unique indexes, so the |
| 20 | +-- "at most one active row per (user_id, app_uid)" / "one active row |
| 21 | +-- per legacy_token_uid" semantics are encoded via VIRTUAL generated |
| 22 | +-- columns that are NULL when the row isn't subject to the rule — |
| 23 | +-- MySQL allows multiple NULLs in a UNIQUE index, so non-applicable |
| 24 | +-- rows don't conflict. |
| 25 | +-- |
| 26 | +-- Idempotent: each ADD COLUMN / ADD INDEX is guarded so the migration |
| 27 | +-- directory can be replayed safely. |
| 28 | + |
| 29 | +DROP PROCEDURE IF EXISTS _puter_sessions_v2_lookups; |
| 30 | +DELIMITER // |
| 31 | +CREATE PROCEDURE _puter_sessions_v2_lookups() |
| 32 | +BEGIN |
| 33 | + IF NOT EXISTS ( |
| 34 | + SELECT 1 FROM INFORMATION_SCHEMA.COLUMNS |
| 35 | + WHERE TABLE_SCHEMA = DATABASE() |
| 36 | + AND TABLE_NAME = 'sessions' AND COLUMN_NAME = 'app_uid' |
| 37 | + ) THEN |
| 38 | + ALTER TABLE `sessions` ADD COLUMN `app_uid` VARCHAR(64) DEFAULT NULL; |
| 39 | + END IF; |
| 40 | + |
| 41 | + IF NOT EXISTS ( |
| 42 | + SELECT 1 FROM INFORMATION_SCHEMA.COLUMNS |
| 43 | + WHERE TABLE_SCHEMA = DATABASE() |
| 44 | + AND TABLE_NAME = 'sessions' AND COLUMN_NAME = 'legacy_token_uid' |
| 45 | + ) THEN |
| 46 | + ALTER TABLE `sessions` |
| 47 | + ADD COLUMN `legacy_token_uid` VARCHAR(64) DEFAULT NULL; |
| 48 | + END IF; |
| 49 | + |
| 50 | + IF NOT EXISTS ( |
| 51 | + SELECT 1 FROM INFORMATION_SCHEMA.COLUMNS |
| 52 | + WHERE TABLE_SCHEMA = DATABASE() |
| 53 | + AND TABLE_NAME = 'sessions' AND COLUMN_NAME = 'created_via' |
| 54 | + ) THEN |
| 55 | + ALTER TABLE `sessions` ADD COLUMN `created_via` VARCHAR(32) DEFAULT NULL; |
| 56 | + END IF; |
| 57 | + |
| 58 | + IF NOT EXISTS ( |
| 59 | + SELECT 1 FROM INFORMATION_SCHEMA.COLUMNS |
| 60 | + WHERE TABLE_SCHEMA = DATABASE() |
| 61 | + AND TABLE_NAME = 'sessions' AND COLUMN_NAME = 'auth_id' |
| 62 | + ) THEN |
| 63 | + ALTER TABLE `sessions` ADD COLUMN `auth_id` VARCHAR(64) DEFAULT NULL; |
| 64 | + END IF; |
| 65 | + |
| 66 | + -- Generated discriminant: non-NULL only for active app-authorization rows, |
| 67 | + -- so UNIQUE(app_unique_key) enforces "one active app session per |
| 68 | + -- (user_id, app_uid)" while permitting any number of revoked rows. |
| 69 | + IF NOT EXISTS ( |
| 70 | + SELECT 1 FROM INFORMATION_SCHEMA.COLUMNS |
| 71 | + WHERE TABLE_SCHEMA = DATABASE() |
| 72 | + AND TABLE_NAME = 'sessions' AND COLUMN_NAME = 'app_unique_key' |
| 73 | + ) THEN |
| 74 | + ALTER TABLE `sessions` |
| 75 | + ADD COLUMN `app_unique_key` VARCHAR(150) |
| 76 | + GENERATED ALWAYS AS ( |
| 77 | + IF(`kind` = 'app' AND `revoked_at` IS NULL, |
| 78 | + CONCAT(`user_id`, '|', `app_uid`), |
| 79 | + NULL) |
| 80 | + ) VIRTUAL; |
| 81 | + END IF; |
| 82 | + |
| 83 | + IF NOT EXISTS ( |
| 84 | + SELECT 1 FROM INFORMATION_SCHEMA.COLUMNS |
| 85 | + WHERE TABLE_SCHEMA = DATABASE() |
| 86 | + AND TABLE_NAME = 'sessions' AND COLUMN_NAME = 'legacy_token_unique_key' |
| 87 | + ) THEN |
| 88 | + ALTER TABLE `sessions` |
| 89 | + ADD COLUMN `legacy_token_unique_key` VARCHAR(64) |
| 90 | + GENERATED ALWAYS AS ( |
| 91 | + IF(`revoked_at` IS NULL, `legacy_token_uid`, NULL) |
| 92 | + ) VIRTUAL; |
| 93 | + END IF; |
| 94 | + |
| 95 | + IF NOT EXISTS ( |
| 96 | + SELECT 1 FROM INFORMATION_SCHEMA.STATISTICS |
| 97 | + WHERE TABLE_SCHEMA = DATABASE() |
| 98 | + AND TABLE_NAME = 'sessions' |
| 99 | + AND INDEX_NAME = 'idx_sessions_user_app_active' |
| 100 | + ) THEN |
| 101 | + ALTER TABLE `sessions` |
| 102 | + ADD UNIQUE INDEX `idx_sessions_user_app_active` (`app_unique_key`); |
| 103 | + END IF; |
| 104 | + |
| 105 | + IF NOT EXISTS ( |
| 106 | + SELECT 1 FROM INFORMATION_SCHEMA.STATISTICS |
| 107 | + WHERE TABLE_SCHEMA = DATABASE() |
| 108 | + AND TABLE_NAME = 'sessions' |
| 109 | + AND INDEX_NAME = 'idx_sessions_legacy_token_active' |
| 110 | + ) THEN |
| 111 | + ALTER TABLE `sessions` |
| 112 | + ADD UNIQUE INDEX `idx_sessions_legacy_token_active` |
| 113 | + (`legacy_token_unique_key`); |
| 114 | + END IF; |
| 115 | + |
| 116 | + IF NOT EXISTS ( |
| 117 | + SELECT 1 FROM INFORMATION_SCHEMA.STATISTICS |
| 118 | + WHERE TABLE_SCHEMA = DATABASE() |
| 119 | + AND TABLE_NAME = 'sessions' |
| 120 | + AND INDEX_NAME = 'idx_sessions_kind_user' |
| 121 | + ) THEN |
| 122 | + ALTER TABLE `sessions` |
| 123 | + ADD INDEX `idx_sessions_kind_user` (`kind`, `user_id`); |
| 124 | + END IF; |
| 125 | +END// |
| 126 | +DELIMITER ; |
| 127 | + |
| 128 | +CALL _puter_sessions_v2_lookups(); |
| 129 | + |
| 130 | +DROP PROCEDURE IF EXISTS _puter_sessions_v2_lookups; |
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