Files
pangolin/server/migrations/mysql/000027_pay_promo_paid_unique.up.sql
T
wangjia a62a2b1797
ci-pangolin / Lint — shellcheck (pull_request) Successful in 11s
ci-pangolin / Redline Scan — 脱敏 (UI 文案) (pull_request) Successful in 25s
ci-pangolin / Cleartext Scan — Android 禁明文 (pull_request) Successful in 19s
ci-pangolin / OpenAPI Sync Check (pull_request) Successful in 41s
ci-pangolin / Portable SQL — 可移植性 (mysql/sqlite) (pull_request) Successful in 20s
ci-pangolin / Codegen Drift — token 生成物未漂移 (pull_request) Successful in 4s
ci-pangolin / DS-flow — 原型/跨端同源/代码色单源闸 (pull_request) Successful in 5s
ci-pangolin / Go — build + test (pull_request) Failing after 14s
ci-pangolin / E2E Smoke — L4 进程级端到端 (pull_request) Failing after 11s
ci-pangolin / Go — integration (mysql/redis testcontainers) (pull_request) Failing after 4m44s
ci-pangolin / Golden — 视觉回归 (全量:components/auth/desktop/tablet) (pull_request) Failing after 20s
ci-pangolin / Flutter — analyze + test (pull_request) Failing after 11m55s
fix(server/pay): promo 限购 settle 侧幂等复查 + 000027 部分唯一索引(TOCTOU)
CreateOrder 下单时的 HasPaidPurchase 只是裸 SELECT 无锁,并发/多挂起单可绕过
promo SKU「每账号限购一次」。两层修:
① webhook.go settle 在锁行、开通前对 item.Promo 的 SKU 复查一次(排除本单),
   命中说明另一笔同 user+SKU 订单已抢先 settle,跳过发放(不二次 +N 天)、
   仍 ack(否则 pay 无限重投)。新增 store.HasPaidPurchaseExcludingTx /
   MarkDuplicatePromoTx——重复单标记 canceled 而非 paid,避免自撞下面的
   唯一索引、也避免整笔 500 触发死循环重投。
② migration 000027(sqlite):部分唯一索引 ux_pay_promo_paid ON
   pay_purchases(user_id, sku) WHERE status='paid' AND sku='pro_month_promo',
   兜底防止任何路径把同一用户的 promo 单二次写成 paid。mysql 8 不支持部分
   索引,000027 mysql 侧是 no-op 占位(仅对齐编号),该场景 mysql 只靠①的
   应用层复查兜底——两库防线强度不同,已在迁移文件与代码注释中记录。

副作用:新增迁移把 sqlite 迁移顶点从 26 推到 27,同步更新
internal/store/sqlite_migrate_test.go 的版本断言,以及
internal/store/codes_lib_migrate_test.go 手动 Steps(-1) 序列(补一步跳过
000027,才能精确落在 000022 边界,这条测试是硬编码步数的)。

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-13 15:53:56 +08:00

8 lines
625 B
SQL
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
-- no-opMySQL 8):MySQL 不支持部分唯一索引(WHERE 子句),无法照搬 sqlite 版
-- 的 (user_id, sku) WHERE status='paid' AND sku='pro_month_promo' 约束——建全表
-- 唯一索引 (user_id, sku, status) 会连带拦掉 created/canceled 状态下的正常
-- 复购/重试流程,不可行。mysql 侧的 promo 限购 TOCTOU 防线仅落在应用层:
-- webhook.go settle 在锁行开通前对 item.Promo 的 SKU 复查一次 HasPaidPurchase
-- 命中则跳过发放、吞掉重复单(详见该函数注释)。此文件仅占位对齐 sqlite 的
-- 000027 编号,不执行任何 DDL。