Files
Claude 1673c37b9c fix: comprehensive security hardening from full codebase audit
Addresses 14 findings from the security audit across all severity levels:

CRITICAL:
- C-1: Add user blocking system (migration, DB queries, REST API, WS DM
  send check) to prevent harassment via unconsented DMs
- C-2: Remove server version from unauthenticated /health and /info endpoints
  to prevent fingerprinting

HIGH:
- H-1: Remove dangerous-settings feature from tauri-plugin-http
- H-3: Default allowSelfSigned to false in API client (was hardcoded true)
- H-4: Cap invite expiration to 30 days (720 hours)
- H-5: Add 256KB message size limit to LiveKit WS proxy (prevents OOM)
- H-6: Cap concurrent sessions to 25 per user (evicts oldest on overflow)
- H-8: Restrict /diagnostics/connectivity to ADMINISTRATOR role

MEDIUM:
- M-2: Deny access to legacy NULL-uploader unlinked attachments
- M-4: Log warnings on TOTP plaintext decryption fallback paths
- M-8: Remove acceptInvalidCerts from OG preview fetches
- M-10: Expand file upload blocklist (Java .class, OLE2, WASM, .lnk)
- M-12: Add LIMIT to ListInvites (200) and ListMembers (1000)
- M-14: Add CHECK constraint trigger on channels.type (text/voice/dm)

https://claude.ai/code/session_01KKo3RwjdmcNzkgXNfUkgNT
2026-04-04 16:48:57 +00:00

14 lines
661 B
SQL

-- User blocking table: prevents DM creation and messaging between users.
-- blocker_id is the user who initiated the block.
-- blocked_id is the user being blocked.
CREATE TABLE IF NOT EXISTS user_blocks (
blocker_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
blocked_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
created_at TEXT NOT NULL DEFAULT (datetime('now')),
PRIMARY KEY (blocker_id, blocked_id),
CHECK (blocker_id != blocked_id)
);
-- Index for efficient "is user X blocked by user Y" lookups (DM send path).
CREATE INDEX IF NOT EXISTS idx_user_blocks_blocked ON user_blocks(blocked_id, blocker_id);