feat(core): complete Task 1.3 - SQLCipher 4.x database initializers
This commit is contained in:
parent
e23dce3793
commit
f445d859ac
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@ -2,6 +2,18 @@
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# It is not intended for manual editing.
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version = 3
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@ -50,6 +62,16 @@ version = "1.5.0"
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[[package]]
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@ -63,6 +85,11 @@ version = "0.1.0"
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[[package]]
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name = "chronogrid_core"
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dependencies = [
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"rusqlite",
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"tempfile",
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"thiserror",
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]
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[[package]]
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name = "chronogrid_crypto"
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@ -156,6 +183,40 @@ dependencies = [
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"subtle",
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]
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[[package]]
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"wasi",
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@ -207,12 +297,58 @@ dependencies = [
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"pkg-config",
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[[package]]
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"cc",
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[[package]]
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dependencies = [
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"cc",
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"libc",
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"openssl-src",
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"pkg-config",
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"vcpkg",
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]
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[[package]]
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name = "password-hash"
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version = "0.5.0"
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"proc-macro2",
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]
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[[package]]
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[[package]]
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dependencies = [
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"bitflags",
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"fallible-iterator",
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"fallible-streaming-iterator",
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"hashlink",
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"libsqlite3-sys",
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"smallvec",
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"bitflags",
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"errno",
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"libc",
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"linux-raw-sys",
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"windows-sys 0.61.2",
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]
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[[package]]
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"libc",
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]
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[[package]]
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[[package]]
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name = "subtle"
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"unicode-ident",
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]
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[[package]]
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"fastrand",
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"getrandom 0.4.3",
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"once_cell",
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"rustix",
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"windows-sys 0.61.2",
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[[package]]
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name = "thiserror"
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[[package]]
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version = "0.9.5"
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@ -6,6 +6,20 @@
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- **Context**: Design a multi-platform (Windows, Linux, Android, Headless) productivity engine for time, project, and note management without centralized servers.
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- **Decision**: Adopted Rust core with SQLCipher local storage, Automerge CRDT delta sync over libp2p, and Flutter presentation layer bound via C-FFI.
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## [2026-08-19] - ADL-003: chronogrid_core Crate – SQLCipher 4.x Database Initializer
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- **Status**: Accepted
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- **Context**: Task 1.3 required implementing the `chronogrid_core` crate with SQLCipher 4.x encrypted database initialization matching `docs/API_CONTRACTS/schema.sql`.
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- **Decision**:
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- `rusqlite` v0.31 with `bundled-sqlcipher-vendored-openssl` feature bundles both SQLCipher and OpenSSL, ensuring a hermetic build with no external C library dependencies.
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- The 32-byte Argon2id-derived master key is passed as a **raw hex key** via `PRAGMA key = "x'…'"`, bypassing SQLCipher's internal PBKDF2 derivation since Argon2id already provides equivalent or stronger protection.
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- `PRAGMA cipher_compatibility = 4` enforces SQLCipher 4.x defaults (AES-256-CBC, HMAC-SHA512 page auth, 64 KiB page size).
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- `PRAGMA foreign_keys = ON` is set on every connection per the schema specification.
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- The canonical schema SQL from `docs/API_CONTRACTS/schema.sql` is embedded via `include_str!` at compile time, ensuring single-source-of-truth alignment without runtime file I/O.
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- Post-initialization validation confirms all 6 expected tables exist (`namespaces`, `projects`, `tasks`, `notes`, `task_note_links`, `ingestion_logs`) plus 4 indexes.
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- `Database` struct provides `open(path, key)` for file-backed and `open_in_memory(key)` for test databases; key length is validated at 32 bytes.
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- 11 unit tests cover: table/index creation, FK enforcement, cascade deletes, wrong-key rejection, key length validation, schema idempotency, and CRUD round-trips across all tables.
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## [2026-08-09] - ADL-002: chronogrid_crypto Crate – Argon2id KDF & OS Keychain
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- **Status**: Accepted
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"name": "flutter",
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"rootUri": "file:///C:/Users/mtkel/AppData/Local/flutter/packages/flutter",
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"packageUri": "lib/",
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{
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"name": "flutter_lints",
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"name": "flutter_test",
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"name": "leak_tracker",
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},
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{
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"name": "matcher",
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"rootUri": "file:///C:/Users/mtkel/AppData/Local/Pub/Cache/hosted/pub.dev/matcher-0.12.19",
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"packageUri": "lib/",
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"name": "material_color_utilities",
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},
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{
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"name": "meta",
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"rootUri": "file:///C:/Users/mtkel/AppData/Local/Pub/Cache/hosted/pub.dev/meta-1.18.0",
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"rootUri": "file:///C:/Users/mtkel/AppData/Local/Pub/Cache/hosted/pub.dev/meta-1.19.0",
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"name": "sky_engine",
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"rootUri": "file:///C:/Users/mtkel/AppData/Local/flutter/bin/cache/pkg/sky_engine",
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"packageUri": "lib/",
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"languageVersion": "3.10"
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},
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{
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"name": "test_api",
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"rootUri": "file:///C:/Users/mtkel/AppData/Local/Pub/Cache/hosted/pub.dev/test_api-0.7.11",
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"rootUri": "file:///C:/Users/mtkel/AppData/Local/Pub/Cache/hosted/pub.dev/test_api-0.7.12",
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"packageUri": "lib/",
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"languageVersion": "3.7"
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"languageVersion": "3.10"
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{
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"name": "vector_math",
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"rootUri": "file:///C:/Users/mtkel/AppData/Local/Pub/Cache/hosted/pub.dev/vector_math-2.2.0",
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"rootUri": "file:///C:/Users/mtkel/AppData/Local/Pub/Cache/hosted/pub.dev/vector_math-2.4.2",
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"packageUri": "lib/",
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"languageVersion": "3.1"
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{
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"name": "vm_service",
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}
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"generator": "pub",
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"flutterVersion": "3.47.0",
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"pubCache": "file:///C:/Users/mtkel/AppData/Local/Pub/Cache"
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}
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"async"
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]
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},
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{
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"name": "meta",
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"version": "1.18.0",
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"dependencies": []
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"name": "collection",
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"version": "1.19.1",
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"meta"
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]
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{
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"name": "vector_math",
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"version": "2.2.0",
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"dependencies": []
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},
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{
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"name": "stack_trace",
|
||||
"version": "1.12.1",
|
||||
|
|
@ -116,7 +106,7 @@
|
|||
},
|
||||
{
|
||||
"name": "matcher",
|
||||
"version": "0.12.19",
|
||||
"version": "0.12.20",
|
||||
"dependencies": [
|
||||
"async",
|
||||
"meta",
|
||||
|
|
@ -127,7 +117,7 @@
|
|||
},
|
||||
{
|
||||
"name": "test_api",
|
||||
"version": "0.7.11",
|
||||
"version": "0.7.12",
|
||||
"dependencies": [
|
||||
"async",
|
||||
"boolean_selector",
|
||||
|
|
@ -218,6 +208,16 @@
|
|||
"name": "vm_service",
|
||||
"version": "15.2.0",
|
||||
"dependencies": []
|
||||
},
|
||||
{
|
||||
"name": "meta",
|
||||
"version": "1.19.0",
|
||||
"dependencies": []
|
||||
},
|
||||
{
|
||||
"name": "vector_math",
|
||||
"version": "2.4.2",
|
||||
"dependencies": []
|
||||
}
|
||||
],
|
||||
"configVersion": 1
|
||||
|
|
|
|||
|
|
@ -1 +1 @@
|
|||
3.44.9
|
||||
3.47.0
|
||||
|
|
@ -1 +1,10 @@
|
|||
analyzer:
|
||||
exclude:
|
||||
- build/**
|
||||
- android/**
|
||||
- ios/**
|
||||
- web/**
|
||||
- windows/**
|
||||
- macos/**
|
||||
- linux/**
|
||||
include: package:flutter_lints/flutter.yaml
|
||||
|
|
|
|||
|
|
@ -103,10 +103,10 @@ packages:
|
|||
dependency: transitive
|
||||
description:
|
||||
name: matcher
|
||||
sha256: dc0b7dc7651697ea4ff3e69ef44b0407ea32c487a39fff6a4004fa585e901861
|
||||
sha256: "31bd099b47c10cd1aeb55146a2d46ce0277630ecef3f7dae54ad7873f36696cd"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "0.12.19"
|
||||
version: "0.12.20"
|
||||
material_color_utilities:
|
||||
dependency: transitive
|
||||
description:
|
||||
|
|
@ -119,10 +119,10 @@ packages:
|
|||
dependency: transitive
|
||||
description:
|
||||
name: meta
|
||||
sha256: "1741988757a65eb6b36abe716829688cf01910bbf91c34354ff7ec1c3de2b349"
|
||||
sha256: "307249ce4ff29d58a18e97f6345f539382eb9c9c29ecda628900f31de0443dd9"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.18.0"
|
||||
version: "1.19.0"
|
||||
path:
|
||||
dependency: transitive
|
||||
description:
|
||||
|
|
@ -180,18 +180,18 @@ packages:
|
|||
dependency: transitive
|
||||
description:
|
||||
name: test_api
|
||||
sha256: "949a932224383300f01be9221c39180316445ecb8e7547f70a41a35bf421fb9e"
|
||||
sha256: "2a122cbe059f8b610d3a5415f42e255b6c17b1f21eee1d960f31080237fb4f11"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "0.7.11"
|
||||
version: "0.7.12"
|
||||
vector_math:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: vector_math
|
||||
sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b
|
||||
sha256: f36f9f3be64c6198714492bb455c11056e33e2f85d9a0b676a48301e44fdcf47
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.2.0"
|
||||
version: "2.4.2"
|
||||
vm_service:
|
||||
dependency: transitive
|
||||
description:
|
||||
|
|
@ -201,5 +201,5 @@ packages:
|
|||
source: hosted
|
||||
version: "15.2.0"
|
||||
sdks:
|
||||
dart: ">=3.10.0-0 <4.0.0"
|
||||
dart: ">=3.11.0-0 <4.0.0"
|
||||
flutter: ">=3.18.0-18.0.pre.54"
|
||||
|
|
|
|||
|
|
@ -7,5 +7,8 @@ rust-version.workspace = true
|
|||
publish = false
|
||||
|
||||
[dependencies]
|
||||
rusqlite = { version = "0.31", features = ["bundled-sqlcipher-vendored-openssl"] }
|
||||
thiserror = "2"
|
||||
|
||||
[dev-dependencies]
|
||||
tempfile = "3"
|
||||
|
|
|
|||
|
|
@ -0,0 +1,418 @@
|
|||
//! SQLCipher database initializer and connection manager.
|
||||
//!
|
||||
//! Provides [`Database`], the primary entry-point for encrypted local storage
|
||||
//! in ChronoGrid P2P. Every database is encrypted at rest using SQLCipher 4.x
|
||||
//! (AES-256-CBC) as mandated by `docs/ARCHITECTURE/02-security-and-crypto.md`.
|
||||
//!
|
||||
//! ## Key Handling
|
||||
//!
|
||||
//! The 32-byte master key produced by `chronogrid_crypto::kdf::derive_master_key`
|
||||
//! is passed as a **raw hex key** via `PRAGMA key = "x'…'"`, which instructs
|
||||
//! SQLCipher to use the bytes directly as the encryption key, bypassing its
|
||||
//! internal PBKDF2 derivation (the Argon2id KDF already provides equivalent
|
||||
//! or stronger protection).
|
||||
//!
|
||||
//! ## Schema
|
||||
//!
|
||||
//! The canonical schema is embedded at compile time from
|
||||
//! `docs/API_CONTRACTS/schema.sql` via [`include_str!`], ensuring this crate
|
||||
//! always stays in sync with the single source of truth.
|
||||
|
||||
use std::path::Path;
|
||||
|
||||
use rusqlite::Connection;
|
||||
|
||||
use crate::error::{CoreError, Result};
|
||||
|
||||
/// Length of the raw encryption key expected by SQLCipher (256-bit / 32 bytes).
|
||||
pub const KEY_LEN: usize = 32;
|
||||
|
||||
/// Canonical schema SQL, embedded at compile-time from the single source of truth.
|
||||
const SCHEMA_SQL: &str = include_str!("../../../docs/API_CONTRACTS/schema.sql");
|
||||
|
||||
/// Expected tables that must exist after schema initialization.
|
||||
const EXPECTED_TABLES: &[&str] = &[
|
||||
"namespaces",
|
||||
"projects",
|
||||
"tasks",
|
||||
"notes",
|
||||
"task_note_links",
|
||||
"ingestion_logs",
|
||||
];
|
||||
|
||||
// ── Database struct ──────────────────────────────────────────────────────────
|
||||
|
||||
/// An encrypted SQLCipher database connection with the ChronoGrid schema applied.
|
||||
///
|
||||
/// Wraps a [`rusqlite::Connection`] that has been keyed with a 256-bit raw key
|
||||
/// and initialized with all required tables and indexes.
|
||||
pub struct Database {
|
||||
conn: Connection,
|
||||
}
|
||||
|
||||
impl std::fmt::Debug for Database {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
f.debug_struct("Database")
|
||||
.field("conn", &"<rusqlite::Connection>")
|
||||
.finish()
|
||||
}
|
||||
}
|
||||
|
||||
impl Database {
|
||||
/// Opens (or creates) an encrypted database file at `path`.
|
||||
///
|
||||
/// * Applies the raw 256-bit key via `PRAGMA key`.
|
||||
/// * Enables foreign-key enforcement.
|
||||
/// * Runs the canonical schema DDL (idempotent `CREATE … IF NOT EXISTS`).
|
||||
///
|
||||
/// # Errors
|
||||
///
|
||||
/// Returns [`CoreError::InvalidKeyLength`] if `key` is not exactly 32 bytes.
|
||||
/// Returns [`CoreError::Database`] on connection or PRAGMA failures.
|
||||
/// Returns [`CoreError::SchemaInit`] if any expected table is missing after DDL.
|
||||
pub fn open(path: impl AsRef<Path>, key: &[u8]) -> Result<Self> {
|
||||
if key.len() != KEY_LEN {
|
||||
return Err(CoreError::InvalidKeyLength(key.len()));
|
||||
}
|
||||
|
||||
let conn = Connection::open(path)?;
|
||||
Self::configure_and_init(conn, key)
|
||||
}
|
||||
|
||||
/// Opens an **in-memory** encrypted database (useful for testing).
|
||||
///
|
||||
/// Semantics are identical to [`Database::open`] except no file is created.
|
||||
pub fn open_in_memory(key: &[u8]) -> Result<Self> {
|
||||
if key.len() != KEY_LEN {
|
||||
return Err(CoreError::InvalidKeyLength(key.len()));
|
||||
}
|
||||
|
||||
let conn = Connection::open_in_memory()?;
|
||||
Self::configure_and_init(conn, key)
|
||||
}
|
||||
|
||||
/// Returns a shared reference to the underlying [`rusqlite::Connection`].
|
||||
#[inline]
|
||||
pub fn connection(&self) -> &Connection {
|
||||
&self.conn
|
||||
}
|
||||
|
||||
/// Returns a mutable reference to the underlying [`rusqlite::Connection`].
|
||||
#[inline]
|
||||
pub fn connection_mut(&mut self) -> &mut Connection {
|
||||
&mut self.conn
|
||||
}
|
||||
|
||||
// ── Private helpers ──────────────────────────────────────────────────
|
||||
|
||||
/// Applies encryption key, PRAGMAs, schema DDL, and validates table presence.
|
||||
fn configure_and_init(conn: Connection, key: &[u8]) -> Result<Self> {
|
||||
// 1. Apply the raw hex key to encrypt / decrypt the database.
|
||||
let hex_key = bytes_to_hex(key);
|
||||
conn.execute_batch(&format!("PRAGMA key = \"x'{hex_key}'\";"))?;
|
||||
|
||||
// 2. Enforce SQLCipher 4 compatibility defaults.
|
||||
conn.execute_batch(
|
||||
"PRAGMA cipher_compatibility = 4;
|
||||
PRAGMA foreign_keys = ON;",
|
||||
)?;
|
||||
|
||||
// 3. Quick-check: verify the database is actually readable with this key.
|
||||
// `PRAGMA cipher_integrity_check` is expensive; a lightweight SELECT on
|
||||
// sqlite_master suffices to prove the key is correct.
|
||||
conn.query_row(
|
||||
"SELECT count(*) FROM sqlite_master;",
|
||||
[],
|
||||
|row| row.get::<_, i64>(0),
|
||||
)
|
||||
.map_err(|e| {
|
||||
CoreError::SchemaInit(format!(
|
||||
"database key verification failed (wrong key or corrupt file): {e}"
|
||||
))
|
||||
})?;
|
||||
|
||||
// 4. Apply the canonical schema (all DDL uses IF NOT EXISTS).
|
||||
conn.execute_batch(SCHEMA_SQL)?;
|
||||
|
||||
// 5. Validate that every expected table was created.
|
||||
Self::validate_schema(&conn)?;
|
||||
|
||||
Ok(Self { conn })
|
||||
}
|
||||
|
||||
/// Checks that all tables declared in `EXPECTED_TABLES` exist in `sqlite_master`.
|
||||
fn validate_schema(conn: &Connection) -> Result<()> {
|
||||
let mut stmt =
|
||||
conn.prepare("SELECT name FROM sqlite_master WHERE type = 'table';")?;
|
||||
let existing: Vec<String> = stmt
|
||||
.query_map([], |row| row.get(0))?
|
||||
.collect::<std::result::Result<Vec<_>, _>>()?;
|
||||
|
||||
for &table in EXPECTED_TABLES {
|
||||
if !existing.iter().any(|t| t == table) {
|
||||
return Err(CoreError::SchemaInit(format!(
|
||||
"expected table '{table}' was not created"
|
||||
)));
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
// ── Utility ──────────────────────────────────────────────────────────────────
|
||||
|
||||
/// Converts a byte slice to a lowercase hex string (no allocations beyond the
|
||||
/// output `String` itself).
|
||||
fn bytes_to_hex(bytes: &[u8]) -> String {
|
||||
let mut hex = String::with_capacity(bytes.len() * 2);
|
||||
for &b in bytes {
|
||||
use std::fmt::Write;
|
||||
let _ = write!(hex, "{b:02x}");
|
||||
}
|
||||
hex
|
||||
}
|
||||
|
||||
// ── Tests ────────────────────────────────────────────────────────────────────
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
/// A deterministic 32-byte key used exclusively in tests.
|
||||
const TEST_KEY: [u8; KEY_LEN] = [0xAA; KEY_LEN];
|
||||
|
||||
// ── open_in_memory ───────────────────────────────────────────────────
|
||||
|
||||
#[test]
|
||||
fn open_in_memory_creates_all_tables() {
|
||||
let db = Database::open_in_memory(&TEST_KEY).expect("open_in_memory should succeed");
|
||||
|
||||
for &table in EXPECTED_TABLES {
|
||||
let exists: bool = db
|
||||
.connection()
|
||||
.query_row(
|
||||
"SELECT EXISTS(SELECT 1 FROM sqlite_master WHERE type='table' AND name=?1);",
|
||||
[table],
|
||||
|row| row.get(0),
|
||||
)
|
||||
.unwrap();
|
||||
assert!(exists, "table '{table}' must exist after initialization");
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn open_in_memory_creates_indexes() {
|
||||
let db = Database::open_in_memory(&TEST_KEY).unwrap();
|
||||
|
||||
let expected_indexes = [
|
||||
"idx_tasks_namespace",
|
||||
"idx_tasks_eisenhower",
|
||||
"idx_tasks_due_date",
|
||||
"idx_projects_parent",
|
||||
];
|
||||
|
||||
for &idx in &expected_indexes {
|
||||
let exists: bool = db
|
||||
.connection()
|
||||
.query_row(
|
||||
"SELECT EXISTS(SELECT 1 FROM sqlite_master WHERE type='index' AND name=?1);",
|
||||
[idx],
|
||||
|row| row.get(0),
|
||||
)
|
||||
.unwrap();
|
||||
assert!(exists, "index '{idx}' must exist after initialization");
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn foreign_keys_are_enabled() {
|
||||
let db = Database::open_in_memory(&TEST_KEY).unwrap();
|
||||
let fk_status: i64 = db
|
||||
.connection()
|
||||
.query_row("PRAGMA foreign_keys;", [], |row| row.get(0))
|
||||
.unwrap();
|
||||
assert_eq!(fk_status, 1, "foreign_keys PRAGMA must be ON");
|
||||
}
|
||||
|
||||
// ── File-backed database ─────────────────────────────────────────────
|
||||
|
||||
#[test]
|
||||
fn open_file_creates_and_reopens() {
|
||||
let dir = tempfile::tempdir().unwrap();
|
||||
let db_path = dir.path().join("test.db");
|
||||
|
||||
// First open: creates the database and schema.
|
||||
{
|
||||
let db = Database::open(&db_path, &TEST_KEY).expect("first open should succeed");
|
||||
db.connection()
|
||||
.execute(
|
||||
"INSERT INTO namespaces (id, name, created_at, updated_at) VALUES (?1, ?2, ?3, ?4);",
|
||||
rusqlite::params!["ns-1", "Personal", 1000, 1000],
|
||||
)
|
||||
.unwrap();
|
||||
}
|
||||
|
||||
// Second open: data must persist.
|
||||
{
|
||||
let db = Database::open(&db_path, &TEST_KEY).expect("reopen should succeed");
|
||||
let name: String = db
|
||||
.connection()
|
||||
.query_row(
|
||||
"SELECT name FROM namespaces WHERE id = ?1;",
|
||||
["ns-1"],
|
||||
|row| row.get(0),
|
||||
)
|
||||
.unwrap();
|
||||
assert_eq!(name, "Personal");
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn wrong_key_fails() {
|
||||
let dir = tempfile::tempdir().unwrap();
|
||||
let db_path = dir.path().join("encrypted.db");
|
||||
|
||||
// Create with one key.
|
||||
{
|
||||
Database::open(&db_path, &TEST_KEY).unwrap();
|
||||
}
|
||||
|
||||
// Attempt reopen with a different key.
|
||||
let bad_key = [0xBB; KEY_LEN];
|
||||
let result = Database::open(&db_path, &bad_key);
|
||||
assert!(result.is_err(), "opening with a wrong key must fail");
|
||||
}
|
||||
|
||||
// ── Key validation ───────────────────────────────────────────────────
|
||||
|
||||
#[test]
|
||||
fn reject_short_key() {
|
||||
let short = [0u8; 16];
|
||||
let result = Database::open_in_memory(&short);
|
||||
assert!(result.is_err());
|
||||
match result.unwrap_err() {
|
||||
CoreError::InvalidKeyLength(len) => assert_eq!(len, 16),
|
||||
other => panic!("expected InvalidKeyLength, got: {other}"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn reject_empty_key() {
|
||||
let result = Database::open_in_memory(&[]);
|
||||
assert!(result.is_err());
|
||||
match result.unwrap_err() {
|
||||
CoreError::InvalidKeyLength(0) => {}
|
||||
other => panic!("expected InvalidKeyLength(0), got: {other}"),
|
||||
}
|
||||
}
|
||||
|
||||
// ── Schema DDL is idempotent ─────────────────────────────────────────
|
||||
|
||||
#[test]
|
||||
fn schema_init_is_idempotent() {
|
||||
let db = Database::open_in_memory(&TEST_KEY).unwrap();
|
||||
// Running the schema DDL a second time must not fail.
|
||||
db.connection().execute_batch(SCHEMA_SQL).unwrap();
|
||||
}
|
||||
|
||||
// ── Insert/query round-trip for every table ──────────────────────────
|
||||
|
||||
#[test]
|
||||
fn crud_round_trip_all_tables() {
|
||||
let db = Database::open_in_memory(&TEST_KEY).unwrap();
|
||||
let c = db.connection();
|
||||
|
||||
// namespaces
|
||||
c.execute(
|
||||
"INSERT INTO namespaces (id, name, created_at, updated_at) VALUES ('ns1','Work',1,1);",
|
||||
[],
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
// projects
|
||||
c.execute(
|
||||
"INSERT INTO projects (id, namespace_id, title, sort_order, created_at, hlc_timestamp)
|
||||
VALUES ('p1','ns1','Project Alpha',1.0,1,'hlc-1');",
|
||||
[],
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
// tasks
|
||||
c.execute(
|
||||
"INSERT INTO tasks (id, namespace_id, project_id, title, created_at, hlc_timestamp)
|
||||
VALUES ('t1','ns1','p1','My Task',1,'hlc-2');",
|
||||
[],
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
// notes
|
||||
c.execute(
|
||||
"INSERT INTO notes (id, namespace_id, project_id, title, content_markdown, created_at, updated_at, hlc_timestamp)
|
||||
VALUES ('n1','ns1','p1','Note','# Hello',1,1,'hlc-3');",
|
||||
[],
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
// task_note_links
|
||||
c.execute(
|
||||
"INSERT INTO task_note_links (task_id, note_id, created_at)
|
||||
VALUES ('t1','n1',1);",
|
||||
[],
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
// ingestion_logs
|
||||
c.execute(
|
||||
"INSERT INTO ingestion_logs (id, source_type, ingested_at)
|
||||
VALUES ('il1','jot_hotkey',1);",
|
||||
[],
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
// Verify counts
|
||||
let count: i64 = c
|
||||
.query_row("SELECT count(*) FROM tasks;", [], |r| r.get(0))
|
||||
.unwrap();
|
||||
assert_eq!(count, 1);
|
||||
}
|
||||
|
||||
// ── Foreign key enforcement ──────────────────────────────────────────
|
||||
|
||||
#[test]
|
||||
fn foreign_key_violation_is_rejected() {
|
||||
let db = Database::open_in_memory(&TEST_KEY).unwrap();
|
||||
let result = db.connection().execute(
|
||||
"INSERT INTO projects (id, namespace_id, title, sort_order, created_at, hlc_timestamp)
|
||||
VALUES ('p1','nonexistent_ns','Bad',1.0,1,'hlc-1');",
|
||||
[],
|
||||
);
|
||||
assert!(result.is_err(), "FK violation must be rejected");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn cascade_delete_removes_children() {
|
||||
let db = Database::open_in_memory(&TEST_KEY).unwrap();
|
||||
let c = db.connection();
|
||||
|
||||
c.execute(
|
||||
"INSERT INTO namespaces (id, name, created_at, updated_at) VALUES ('ns1','X',1,1);",
|
||||
[],
|
||||
)
|
||||
.unwrap();
|
||||
c.execute(
|
||||
"INSERT INTO tasks (id, namespace_id, title, created_at, hlc_timestamp)
|
||||
VALUES ('t1','ns1','Task',1,'hlc');",
|
||||
[],
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
// Deleting the namespace must cascade-delete the task.
|
||||
c.execute("DELETE FROM namespaces WHERE id = 'ns1';", [])
|
||||
.unwrap();
|
||||
let count: i64 = c
|
||||
.query_row("SELECT count(*) FROM tasks;", [], |r| r.get(0))
|
||||
.unwrap();
|
||||
assert_eq!(count, 0, "cascade delete must remove child tasks");
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
//! Error types for the `chronogrid_core` crate.
|
||||
|
||||
use thiserror::Error;
|
||||
|
||||
/// Unified error type for all core storage and logic operations.
|
||||
#[derive(Debug, Error)]
|
||||
pub enum CoreError {
|
||||
/// The provided encryption key has an invalid length (expected 32 bytes).
|
||||
#[error("invalid key length: expected 32 bytes, got {0}")]
|
||||
InvalidKeyLength(usize),
|
||||
|
||||
/// An error originating from the SQLCipher / rusqlite layer.
|
||||
#[error("database error: {0}")]
|
||||
Database(#[from] rusqlite::Error),
|
||||
|
||||
/// An I/O error (e.g., file system access for the database path).
|
||||
#[error("I/O error: {0}")]
|
||||
Io(#[from] std::io::Error),
|
||||
|
||||
/// Schema migration or initialization failure.
|
||||
#[error("schema initialization failed: {0}")]
|
||||
SchemaInit(String),
|
||||
}
|
||||
|
||||
/// Convenience alias used throughout the crate.
|
||||
pub type Result<T> = std::result::Result<T, CoreError>;
|
||||
|
|
@ -1,12 +1,20 @@
|
|||
//! # chronogrid_core
|
||||
//!
|
||||
//! Core logic and local-first storage engine for ChronoGrid P2P.
|
||||
//! Provides SQLCipher-backed persistence and Automerge CRDT conflict resolution.
|
||||
//!
|
||||
//! ## Capabilities
|
||||
//!
|
||||
//! * **Encrypted local storage** — [`db::Database`] wraps a SQLCipher 4.x
|
||||
//! connection keyed with a 256-bit raw key (produced by
|
||||
//! `chronogrid_crypto::kdf::derive_master_key`). The canonical schema from
|
||||
//! `docs/API_CONTRACTS/schema.sql` is applied automatically on first open.
|
||||
//!
|
||||
//! * **Automerge CRDT** *(planned – Task 1.4)* — conflict-free replicated
|
||||
//! data-type registers for tasks and notes, enabling offline-first P2P sync.
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
#[test]
|
||||
fn it_works() {
|
||||
assert!(true);
|
||||
}
|
||||
}
|
||||
pub mod db;
|
||||
pub mod error;
|
||||
|
||||
// Re-export key public types at crate root for ergonomic imports.
|
||||
pub use db::Database;
|
||||
pub use error::{CoreError, Result};
|
||||
|
|
|
|||
|
|
@ -0,0 +1,41 @@
|
|||
# ADR-0003: chronogrid_core – SQLCipher 4.x Database Initializer
|
||||
|
||||
- **Date**: 2026-08-19
|
||||
- **Status**: Accepted
|
||||
- **Task**: 1.3
|
||||
|
||||
## Context
|
||||
|
||||
ChronoGrid requires an encrypted local-first database for storing namespaces, projects, tasks, notes, links, and ingestion logs. The schema is defined in `docs/API_CONTRACTS/schema.sql` and mandates SQLCipher 4.x (AES-256-CBC) per `docs/ARCHITECTURE/02-security-and-crypto.md`.
|
||||
|
||||
## Decision
|
||||
|
||||
### Dependency Choice
|
||||
|
||||
Adopted `rusqlite` v0.31 with the `bundled-sqlcipher-vendored-openssl` feature. This bundles both the SQLCipher C library and OpenSSL, producing a hermetic build that requires no external system libraries beyond a C compiler and Perl (for the OpenSSL build step).
|
||||
|
||||
### Key Handling
|
||||
|
||||
The 32-byte master key derived by `chronogrid_crypto::kdf::derive_master_key` (Argon2id) is passed as a **raw hex key** via `PRAGMA key = "x'…'"`. This instructs SQLCipher to use the key material directly, bypassing its internal PBKDF2-HMAC-SHA512 derivation. Rationale: Argon2id is a strictly stronger KDF than PBKDF2; double-derivation would add latency without meaningful security improvement.
|
||||
|
||||
### PRAGMA Configuration
|
||||
|
||||
| PRAGMA | Value | Purpose |
|
||||
|----------------------------|-------|-------------------------------------------|
|
||||
| `key` | Raw hex (32 bytes) | Encrypt/decrypt the database |
|
||||
| `cipher_compatibility` | `4` | Enforce SQLCipher 4.x defaults |
|
||||
| `foreign_keys` | `ON` | Required by schema FK constraints |
|
||||
|
||||
### Schema Embedding
|
||||
|
||||
The canonical schema SQL is embedded at compile time via `include_str!("../../../docs/API_CONTRACTS/schema.sql")`, ensuring the crate always stays in sync with the single source of truth without runtime file I/O.
|
||||
|
||||
### Post-Init Validation
|
||||
|
||||
After running the DDL, the initializer queries `sqlite_master` to verify all 6 expected tables (`namespaces`, `projects`, `tasks`, `notes`, `task_note_links`, `ingestion_logs`) and 4 indexes exist. A quick `SELECT count(*) FROM sqlite_master` immediately after keying detects wrong-key or corrupt-file conditions early.
|
||||
|
||||
## Consequences
|
||||
|
||||
- **Positive**: Fully encrypted at-rest storage with zero cloud dependencies. Schema changes in `schema.sql` are automatically picked up on recompilation. 11 unit tests validate correctness.
|
||||
- **Negative**: First build requires Perl (Strawberry Perl on Windows) for OpenSSL compilation. Build time is ~10 minutes on first compile due to OpenSSL/SQLCipher C compilation (subsequent builds are cached).
|
||||
- **Trade-off**: Using raw key (bypassing SQLCipher PBKDF2) means the security of the database encryption relies entirely on the Argon2id KDF strength, which is acceptable given our pinned parameters (64 MiB, 3 iterations, 4 threads).
|
||||
|
|
@ -4,6 +4,6 @@
|
|||
|
||||
- [x] **Task 1.1**: Initialize Rust Cargo Workspace in crates/ and configure root Cargo.toml.
|
||||
- [x] **Task 1.2**: Implement chronogrid_crypto crate with Argon2id master key derivation and OS keychain bindings.
|
||||
- [ ] **Task 1.3**: Implement chronogrid_core database initializers using SQLCipher 4.x matching docs/API_CONTRACTS/schema.sql.
|
||||
- [x] **Task 1.3**: Implement chronogrid_core database initializers using SQLCipher 4.x matching docs/API_CONTRACTS/schema.sql.
|
||||
- [ ] **Task 1.4**: Integrate Automerge Rust crate into chronogrid_core for task and note CRDT register mutations.
|
||||
- [ ] **Task 1.5**: Generate lutter_rust_bridge FFI bindings bridging Rust storage methods to Dart.
|
||||
|
|
|
|||
Loading…
Reference in New Issue