feat(#707): secure Discord service ingress (#716)
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This commit was merged in pull request #716.
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2026-07-12 23:18:29 +00:00
parent 46ca3ce742
commit 119f64e69d
9 changed files with 484 additions and 68 deletions

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@@ -293,13 +293,24 @@ Each OIDC provider requires its client ID, client secret, and issuer URL togethe
### Plugins
| Variable | Description |
| ---------------------- | -------------------------------------------------------------------------- |
| `DISCORD_BOT_TOKEN` | Discord bot token (enables Discord plugin) |
| `DISCORD_GUILD_ID` | Discord guild/server ID |
| `DISCORD_GATEWAY_URL` | Gateway URL for Discord plugin to call (default: `http://localhost:14242`) |
| `TELEGRAM_BOT_TOKEN` | Telegram bot token (enables Telegram plugin) |
| `TELEGRAM_GATEWAY_URL` | Gateway URL for Telegram plugin to call |
| Variable | Description |
| ----------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
| `DISCORD_BOT_TOKEN` | Discord bot token (enables Discord plugin) |
| `DISCORD_SERVICE_TOKEN` | Required high-entropy service credential used to authenticate and sign Discord ingress; inject through the approved secret mechanism only |
| `DISCORD_SERVICE_USER_ID` | Required Mosaic service-principal user ID that owns persisted Discord conversations; the original Discord user ID remains audit metadata |
| `DISCORD_GUILD_ID` | Discord guild/server ID |
| `DISCORD_GATEWAY_URL` | Gateway URL for Discord plugin to call (default: `http://localhost:14242`) |
| `DISCORD_ALLOWED_GUILD_IDS` | Required comma-separated Discord guild snowflake allowlist; default-deny |
| `DISCORD_ALLOWED_CHANNEL_IDS` | Required comma-separated Discord channel snowflake allowlist; default-deny |
| `DISCORD_ALLOWED_USER_IDS` | Required comma-separated Discord user snowflake allowlist; default-deny |
| `TELEGRAM_BOT_TOKEN` | Telegram bot token (enables Telegram plugin) |
| `TELEGRAM_GATEWAY_URL` | Gateway URL for Telegram plugin to call |
### Discord ingress security
When `DISCORD_BOT_TOKEN` is configured, `DISCORD_SERVICE_TOKEN`, `DISCORD_SERVICE_USER_ID`, and all three Discord allowlists are required. Gateway startup fails rather than enabling a broad or unauthenticated remote-control surface. The service user ID identifies a provisioned Mosaic service principal for persistence; the original Discord user ID is retained in ingress audit metadata. The service token is a secret supplied by the approved runtime secret mechanism and is never committed or logged.
Inbound Discord messages must originate from an allowed guild, channel, and user, mention the bot, and carry a signed envelope containing the native Discord message ID and a generated correlation ID. The gateway validates the service identity, envelope signature, and allowlists again before dispatching. Replayed Discord message IDs are rejected during the bounded ingress replay window. Durable inbox/idempotency retention is introduced with Tess durable state.
### Observability