forked from trent_larson/crowd-funder-for-time-pwa
feat: implement Migration 005 - fix foreign key constraint to ON DELETE RESTRICT
- Add Migration 005 to fix critical security vulnerability - Change foreign key constraint from ON DELETE SET NULL to ON DELETE RESTRICT - Prevents accidental account deletion through database constraints - Update Active Pointer pattern documentation with current state analysis - Achieve 83% compliance with Active Pointer + Smart Deletion Pattern Security Impact: HIGH - Fixes critical data loss vulnerability Migration: 005_active_identity_constraint_fix Pattern Compliance: 5/6 components (83%) Author: Matthew Raymer
This commit is contained in:
Matthew Raymer
@@ -223,148 +223,162 @@ To support **one active per workspace/tenant**:
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## TimeSafari Implementation Guide
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### Clean Implementation Path (Following Directive)
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### Current State Analysis (2025-01-27)
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If implementing this pattern from scratch or reverting to reapply the directive, follow this clean implementation:
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**Status**: ⚠️ **PARTIAL COMPLIANCE** - Smart deletion logic implemented correctly, but critical security issues remain.
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#### 1) Schema Implementation
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**Compliance Score**: 67% (4/6 components compliant)
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**Initial Migration (001_initial):**
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#### ✅ **What's Already Working**
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- **Smart Deletion Logic**: `IdentitySwitcherView.vue` implements atomic transaction-safe deletion
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- **Data Access API**: All required DAL methods exist in `PlatformServiceMixin.ts`
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- **Schema Structure**: `active_identity` table follows singleton pattern correctly
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- **Bootstrapping**: `$ensureActiveSelected()` method implemented
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#### ❌ **Critical Issues Requiring Fix**
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1. **Foreign Key Constraint**: Currently `ON DELETE SET NULL` (allows accidental deletion)
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2. **Settings Table Cleanup**: Orphaned records with `accountDid=null` exist
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### Updated Implementation Plan
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**Note**: Smart deletion logic is already implemented correctly. Focus on fixing security issues and cleanup.
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#### 1) Critical Security Fix (Migration 005)
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**Fix Foreign Key Constraint:**
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```sql
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-- Enable foreign key constraints for data integrity
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PRAGMA foreign_keys = ON;
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-- Create accounts table with UNIQUE constraint on did
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CREATE TABLE IF NOT EXISTS accounts (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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dateCreated TEXT NOT NULL,
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derivationPath TEXT,
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did TEXT NOT NULL UNIQUE, -- UNIQUE constraint for foreign key support
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identityEncrBase64 TEXT,
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mnemonicEncrBase64 TEXT,
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passkeyCredIdHex TEXT,
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publicKeyHex TEXT NOT NULL
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);
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-- Create active_identity table with foreign key constraint
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CREATE TABLE IF NOT EXISTS active_identity (
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id INTEGER PRIMARY KEY CHECK (id = 1),
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activeDid TEXT DEFAULT NULL, -- NULL instead of empty string
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lastUpdated TEXT NOT NULL DEFAULT (datetime('now')),
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FOREIGN KEY (activeDid) REFERENCES accounts(did) ON DELETE RESTRICT
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);
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-- Seed singleton row
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INSERT INTO active_identity (id, activeDid, lastUpdated) VALUES (1, NULL, datetime('now'));
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```
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#### 2) Data Access API Implementation
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**Add to PlatformServiceMixin.ts:**
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```typescript
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// Required DAL methods following the pattern
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async $getAllAccountDids(): Promise<string[]> {
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const result = await this.$dbQuery("SELECT did FROM accounts ORDER BY dateCreated, did");
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return result?.values?.map(row => row[0] as string) || [];
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}
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async $getAccountDidById(id: number): Promise<string> {
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const result = await this.$dbQuery("SELECT did FROM accounts WHERE id = ?", [id]);
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return result?.values?.[0]?.[0] as string;
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}
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async $getActiveDid(): Promise<string | null> {
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const result = await this.$dbQuery("SELECT activeDid FROM active_identity WHERE id = 1");
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return result?.values?.[0]?.[0] as string || null;
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}
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async $setActiveDid(did: string | null): Promise<void> {
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await this.$dbExec(
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"UPDATE active_identity SET activeDid = ?, lastUpdated = datetime('now') WHERE id = 1",
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[did]
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);
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}
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async $countAccounts(): Promise<number> {
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const result = await this.$dbQuery("SELECT COUNT(*) FROM accounts");
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return result?.values?.[0]?.[0] as number || 0;
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}
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// Deterministic "next" picker
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$pickNextAccountDid(all: string[], current?: string): string {
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const sorted = [...all].sort();
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if (!current) return sorted[0];
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const i = sorted.indexOf(current);
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return sorted[(i + 1) % sorted.length];
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-- Migration 005: Fix foreign key constraint to ON DELETE RESTRICT
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{
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name: "005_active_identity_constraint_fix",
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sql: `
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PRAGMA foreign_keys = ON;
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-- Recreate table with ON DELETE RESTRICT constraint (SECURITY FIX)
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CREATE TABLE active_identity_new (
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id INTEGER PRIMARY KEY CHECK (id = 1),
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activeDid TEXT REFERENCES accounts(did) ON DELETE RESTRICT,
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lastUpdated TEXT NOT NULL DEFAULT (datetime('now'))
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);
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-- Copy existing data
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INSERT INTO active_identity_new (id, activeDid, lastUpdated)
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SELECT id, activeDid, lastUpdated FROM active_identity;
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-- Replace old table
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DROP TABLE active_identity;
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ALTER TABLE active_identity_new RENAME TO active_identity;
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-- Recreate indexes
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CREATE UNIQUE INDEX IF NOT EXISTS idx_active_identity_single_record ON active_identity(id);
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`
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}
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```
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#### 3) Smart Deletion Implementation
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#### 2) Settings Table Cleanup (Migration 006)
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**Replace deleteAccount in IdentitySwitcherView.vue:**
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```typescript
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async smartDeleteAccount(id: string) {
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await this.$withTransaction(async () => {
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const total = await this.$countAccounts();
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if (total <= 1) {
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this.notify.warning("Cannot delete the last account. Keep at least one.");
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throw new Error("blocked:last-item");
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}
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const accountDid = await this.$getAccountDidById(parseInt(id));
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const activeDid = await this.$getActiveDid();
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if (activeDid === accountDid) {
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const allDids = await this.$getAllAccountDids();
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const nextDid = this.$pickNextAccountDid(allDids.filter(d => d !== accountDid), accountDid);
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await this.$setActiveDid(nextDid);
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this.notify.success(`Switched active to ${nextDid} before deletion.`);
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}
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await this.$exec("DELETE FROM accounts WHERE id = ?", [id]);
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});
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// Update UI
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this.otherIdentities = this.otherIdentities.filter(ident => ident.id !== id);
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**Remove Orphaned Records:**
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```sql
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-- Migration 006: Settings cleanup
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{
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name: "006_settings_cleanup",
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sql: `
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-- Remove orphaned settings records (accountDid is null)
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DELETE FROM settings WHERE accountDid IS NULL;
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-- Clear any remaining activeDid values in settings
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UPDATE settings SET activeDid = NULL;
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`
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}
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```
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#### 4) Bootstrapping Implementation
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#### 3) Optional Future Enhancement (Migration 007)
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**Add to PlatformServiceMixin.ts:**
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```typescript
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async $ensureActiveSelected() {
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const active = await this.$getActiveDid();
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const all = await this.$getAllAccountDids();
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if (active === null && all.length > 0) {
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await this.$setActiveDid(this.$pickNextAccountDid(all));
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}
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**Remove Legacy activeDid Column:**
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```sql
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-- Migration 007: Remove activeDid column entirely (future task)
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{
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name: "007_remove_activeDid_column",
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sql: `
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-- Remove the legacy activeDid column from settings table
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ALTER TABLE settings DROP COLUMN activeDid;
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`
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}
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```
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**Call after migrations:**
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```typescript
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// In migration completion or app startup
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await this.$ensureActiveSelected();
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```
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### Current Implementation Status
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#### ✅ **Already Implemented Correctly**
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- **Smart Deletion Logic**: `IdentitySwitcherView.vue` lines 285-315
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- **Data Access API**: All methods exist in `PlatformServiceMixin.ts`
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- **Transaction Safety**: Uses `$withTransaction()` for atomicity
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- **Last Account Protection**: Blocks deletion when `total <= 1`
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- **Deterministic Selection**: `$pickNextAccountDid()` method
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- **Bootstrapping**: `$ensureActiveSelected()` method
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#### ❌ **Requires Immediate Fix**
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1. **Foreign Key Constraint**: Change from `ON DELETE SET NULL` to `ON DELETE RESTRICT`
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2. **Settings Cleanup**: Remove orphaned records with `accountDid=null`
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### Implementation Priority
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#### **Phase 1: Critical Security Fix (IMMEDIATE)**
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- **Migration 005**: Fix foreign key constraint to `ON DELETE RESTRICT`
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- **Impact**: Prevents accidental account deletion
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- **Risk**: HIGH - Current implementation allows data loss
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#### **Phase 2: Settings Cleanup (HIGH PRIORITY)**
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- **Migration 006**: Remove orphaned settings records
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- **Impact**: Cleaner architecture, reduced confusion
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- **Risk**: LOW - Only removes obsolete data
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#### **Phase 3: Future Enhancement (OPTIONAL)**
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- **Migration 007**: Remove `activeDid` column from settings
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- **Impact**: Complete separation of concerns
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- **Risk**: LOW - Architectural cleanup
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### Updated Compliance Assessment
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#### **Current Status**: ⚠️ **PARTIAL COMPLIANCE** (67%)
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| Component | Status | Compliance |
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|-----------|--------|------------|
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| Smart Deletion Logic | ✅ Complete | 100% |
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| Data Access API | ✅ Complete | 100% |
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| Schema Structure | ✅ Complete | 100% |
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| Foreign Key Constraint | ❌ Wrong (`SET NULL`) | 0% |
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| Settings Cleanup | ❌ Missing | 0% |
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| **Overall** | ⚠️ **Partial** | **67%** |
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#### **After Fixes**: ✅ **FULL COMPLIANCE** (100%)
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| Component | Status | Compliance |
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|-----------|--------|------------|
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| Smart Deletion Logic | ✅ Complete | 100% |
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| Data Access API | ✅ Complete | 100% |
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| Schema Structure | ✅ Complete | 100% |
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| Foreign Key Constraint | ✅ Fixed (`RESTRICT`) | 100% |
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| Settings Cleanup | ✅ Cleaned | 100% |
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| **Overall** | ✅ **Complete** | **100%** |
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### Implementation Benefits
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**Following this clean path provides:**
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**Current implementation already provides:**
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- ✅ **Atomic Operations**: Transaction-safe account deletion
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- ✅ **Last Account Protection**: Prevents deletion of final account
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- ✅ **Smart Switching**: Auto-switches active account before deletion
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- ✅ **Data Integrity**: Foreign key constraints prevent orphaned references
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- ✅ **Deterministic Behavior**: Predictable "next account" selection
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- ✅ **NULL Handling**: Proper empty state management
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### Migration Strategy
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**After fixes will add:**
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- ✅ **Data Integrity**: Foreign key constraints prevent orphaned references
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- ✅ **Clean Architecture**: Complete separation of identity vs. settings
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- ✅ **Production Safety**: No accidental account deletion possible
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**For Existing Databases:**
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1. **Revert** current foreign key implementation
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2. **Apply** clean migration sequence above
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3. **Convert** existing `activeDid = ''` to `NULL`
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4. **Implement** smart deletion logic
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5. **Test** all scenarios from test matrix
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### Next Steps
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This clean implementation follows the directive exactly and provides **complete pattern compliance** with **production-grade safeguards**.
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1. **IMMEDIATE**: Implement Migration 005 (foreign key fix)
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2. **HIGH PRIORITY**: Implement Migration 006 (settings cleanup)
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3. **OPTIONAL**: Implement Migration 007 (remove legacy column)
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4. **TEST**: Run directive test matrix to verify compliance
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This updated plan focuses on **fixing the critical security issue** while preserving the **already-working smart deletion logic**.
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@@ -177,6 +177,33 @@ const MIGRATIONS = [
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AND EXISTS (SELECT 1 FROM settings WHERE id = 1 AND activeDid IS NOT NULL AND activeDid != '');
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`,
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},
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{
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name: "005_active_identity_constraint_fix",
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sql: `
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-- Migration 005: Fix foreign key constraint to ON DELETE RESTRICT
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-- CRITICAL SECURITY FIX: Prevents accidental account deletion
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PRAGMA foreign_keys = ON;
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-- Recreate table with ON DELETE RESTRICT constraint (SECURITY FIX)
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CREATE TABLE active_identity_new (
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id INTEGER PRIMARY KEY CHECK (id = 1),
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activeDid TEXT REFERENCES accounts(did) ON DELETE RESTRICT,
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lastUpdated TEXT NOT NULL DEFAULT (datetime('now'))
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);
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-- Copy existing data
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INSERT INTO active_identity_new (id, activeDid, lastUpdated)
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SELECT id, activeDid, lastUpdated FROM active_identity;
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-- Replace old table
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DROP TABLE active_identity;
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ALTER TABLE active_identity_new RENAME TO active_identity;
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-- Recreate indexes
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CREATE UNIQUE INDEX IF NOT EXISTS idx_active_identity_single_record ON active_identity(id);
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`,
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},
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];
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/**
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Block a user