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test(session-persistence): pin rollback journal permissions

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Tianyi Cui
2026-07-19 12:12:16 +08:00
parent 176973cb7b
commit ddd3370477
2 changed files with 17 additions and 1 deletions
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2
packages/session-persistence/session-persistence-sqlite/README.md
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@@ -12,7 +12,7 @@ Each `SessionEvent` maps 1:1 onto a row in an `events` table `(session_id, seq,
The repository's Node range supports unflagged `node:sqlite`. The database enables foreign keys and uses the configured journal mode (`wal` by default; use a rollback mode where WAL shared-memory files are unsuitable). `PRAGMA user_version` stores the table-layout version; databases with any other version are rejected because this unreleased format has no migrations.
On filesystems with POSIX modes, the backend requests mode `0700` for missing directories and exclusively creates a missing database with mode `0600` before SQLite opens it; the process umask may further restrict both. New WAL sidecars receive the database's resulting owner-only mode. Existing directories, database files, and sidecars keep their modes; filesystem setup errors other than an existing database fail initialization. These defaults prevent incidental exposure through a permissive process umask, but do not protect database confidentiality or integrity when another principal can replace the database entry in its parent directory.
On filesystems with POSIX modes, the backend requests mode `0700` for missing directories and exclusively creates a missing database with mode `0600` before SQLite opens it; the process umask may further restrict both. New WAL, shared-memory, and persistent rollback-journal sidecars receive the database's resulting owner-only mode. Existing directories, database files, and sidecars keep their modes; filesystem setup errors other than an existing database fail initialization. These defaults prevent incidental exposure through a permissive process umask, but do not protect database confidentiality or integrity when another principal can replace the database entry in its parent directory.
## Contract semantics over rows

16
packages/session-persistence/session-persistence-sqlite/tests/sqlite.spec.ts
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@@ -406,6 +406,22 @@ describe('SessionPersistenceSqlite: edge cases', () => {
await b.dispose()
})
it('creates a persistent rollback journal with owner-only mode', async () => {
if (process.platform === 'win32') return
const path = await freshDbPath()
const ctx = new Context()
await ctx.plugin(SessionStore)
const fiber = await ctx.plugin(SessionPersistenceSqlite, { path, journalMode: 'persist' })
const m = meta('persist-permissions')
await ctx.sessionPersistence.create(m)
await ctx.sessionPersistence.append(m.id, oneTurnLog())
expect((await stat(path)).mode & 0o777).toBe(0o600)
expect((await stat(`${path}-journal`)).mode & 0o777).toBe(0o600)
await fiber.dispose()
})
it('preserves the mode of an existing database file', async () => {
if (process.platform === 'win32') return
const path = await freshDbPath()