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WebHooker/docs/guide/configuration.md

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# Configuration
## Secrets
WebHooker requires several secrets to function. For local development, store them in `.dev.vars`. For production, use Cloudflare Worker Secrets.
### Required Secrets
| Variable | Description |
| ----------------------- | ------------------------------------------------------------------ |
| `GITHUB_WEBHOOK_SECRET` | Webhook secret from your GitHub App settings |
| `GITHUB_CLIENT_ID` | OAuth client ID from App settings |
| `GITHUB_CLIENT_SECRET` | OAuth client secret from App settings |
| `DISCORD_TOKEN` | Discord bot token |
| `TELEGRAM_TOKEN` | Telegram bot token (from BotFather) — required for Telegram routes |
> [!NOTE]
> `GITHUB_APP_ID` and `GITHUB_PRIVATE_KEY` are not currently used by the code — the
> OAuth flow only needs `GITHUB_CLIENT_ID` / `GITHUB_CLIENT_SECRET`. They are kept
> in the schema for compatibility in case GitHub App authentication is added later.
### Optional Secrets
| Variable | Description | Default |
| --------------------------- | --------------------------------------------------------------------------------------------------------------------------- | --------------------------------- |
| `DISCORD_PUBLIC_KEY` | Discord application public key (Developer Portal) — required for interactions | Unset → interactions return `401` |
| `DISCORD_APPLICATION_ID` | Discord application id; auto-resolved when omitted | Auto-resolved |
| `TELEGRAM_WEBHOOK_SECRET` | Secret token for `POST /telegram/webhook` verification (X-Telegram-Bot-Api-Secret-Token) | Disabled (no verification) |
| `TELEGRAM_RICH_HEADER_HOST` | Base URL of an external rich-header service; when unset, the built-in `GET /api/richheader` serves the Telegram avatar card | Built-in `/api/richheader` |
| `BASE_URL` | Public URL for OAuth callbacks | `http://localhost:8787` |
| `ADMIN_USER_IDS` | Comma-separated GitHub user IDs (or logins) allowed to access the Web UI | Disabled |
## Web UI
WebHooker ships with a built-in config console at `/admin` for managing routes in the browser. It is protected by GitHub OAuth plus an admin whitelist.
### Setup
1. Configure `ADMIN_USER_IDS` with the GitHub user IDs allowed to manage routes. Logins are also accepted, e.g. `ADMIN_USER_IDS=12345,RhenCloud`. If unset, the console is disabled.
2. Open `/admin` and sign in with GitHub.
3. Only users in the whitelist receive a session cookie; everyone else gets `403`.
### Endpoints
| Endpoint | Description |
| ---------------------------------- | --------------------------------------- |
| `GET /admin` | Config console UI |
| `GET /admin/login` | Start GitHub OAuth sign-in |
| `GET /admin/logout` | Destroy session |
| `GET /admin/api/me` | Current session, scope, and groups |
| `GET /admin/api/routes` | List routes (admin only) |
| `PUT /admin/api/routes` | Replace routes (admin only) |
| `GET /admin/api/groups` | List groups (scoped to access) |
| `PUT /admin/api/groups` | Replace groups (super admin only) |
| `GET /admin/api/groups/:id/routes` | List a group's routes |
| `PUT /admin/api/groups/:id/routes` | Replace a group's routes |
| `GET /admin/api/logs` | Send logs (scoped to accessible routes) |
| `GET /admin/api/logs/:id` | Single send-log entry (scoped) |
The console lets you add, edit, delete, and toggle routes. Saved routes are written to KV `config:routes` immediately and the config cache is invalidated so the webhook pipeline picks them up on the next run.
## Routes
Routes define which events get forwarded to which channel (Discord or Telegram). They are stored in Cloudflare KV under the key `config:routes` as a JSON array.
There are **no default routes** — each route must define its own target. If no routes are configured, no events are forwarded.
### Route Schema
```json
{
"id": "unique-route-id",
"name": "Human-readable name",
"enabled": true,
"groupId": "my-group",
"fallback": false,
"stop": false,
"filters": [
{ "type": "event", "match": "push" },
{ "type": "repo", "match": "org/repo", "exclude": false }
],
"targets": [
{
"platform": "discord",
"channelId": "REQUIRED_CHANNEL_ID",
"threadId": "OPTIONAL_THREAD_ID"
}
]
}
```
Each entry of `targets` is a push destination, so one route can forward to several channels at once (e.g. a Discord channel **and** a Telegram group). `target.platform` selects the platform: `discord` (default) or `telegram`. For **Discord**, `target.channelId` is required (a thread in `target.threadId` is optional). For **Telegram**, `target.chatId` (the group/supergroup chat id, e.g. `-1001234567890`) is required and `target.topicId` (the `message_thread_id` of a topic, equivalent of a Discord thread) is optional. There is no fallback to a default channel.
Other route fields:
| Field | Type | Required | Description |
| ---------- | ------- | -------- | ----------------------------------------------------------------------------------------------- |
| `groupId` | string | Yes | Id of the [group](#groups) this route belongs to |
| `fallback` | boolean | No | When `true`, fires only if no non-fallback route matched the event; its own filters are ignored |
| `stop` | boolean | No | When `true` and this route matches, no further routes are evaluated for this event |
| `lang` | string | No | Message language override for this route (e.g. `en`, `zh`); defaults to the global setting |
### Custom Route Example
```json
[
{
"id": "backend-prs",
"name": "Backend PRs",
"enabled": true,
"groupId": "backend-team",
"filters": [
{ "type": "repo", "match": "myorg/backend" },
{ "type": "event", "match": "pull_request" },
{ "type": "actor", "match": "[bot]", "exclude": true }
],
"targets": [
{
"platform": "telegram",
"chatId": "-1001234567890",
"topicId": "9876543210"
}
]
}
]
```
## Groups
Routes belong to groups. Groups scope admin access and can restrict which events flow into them. They are stored in Cloudflare KV under the key `config:groups` as a JSON array.
### Group Schema
```json
{
"id": "backend-team",
"name": "Backend Team",
"adminIds": ["rhencloud"],
"owners": ["myorg"]
}
```
| Field | Type | Required | Description |
| ---------- | -------- | -------- | ---------------------------------------------------------------------- |
| `id` | string | Yes | Lowercase id (`a-z0-9`, `-`); referenced by each route's `groupId` |
| `name` | string | Yes | Human-readable group name |
| `adminIds` | string[] | Yes | GitHub user IDs or logins who may manage this group's routes |
| `owners` | string[] | No | Org/user logins whose events are accepted into this group; empty = all |
| `emoji` | boolean | No | Whether to include emoji in this group's messages (default `true`) |
### Access Model
- **Super admins** (`ADMIN_USER_IDS`) see and edit every group and all routes.
- **Group admins** (`adminIds`) only see and edit the groups they manage; submitting a route outside their groups returns `403`.
- Group admin endpoints operate on a single group at a time via `/admin/api/groups/:id/routes`; `groupId` is forced from the path parameter.
- The `owners` list restricts which event actors (sender logins) the group's routes will dispatch at all.
## Filter Types
See the [Filter Tutorial](./filters) for a hands-on guide with worked examples.
| Type | Matches | Example |
| --------- | -------------------- | -------------------------------- |
| `event` | GitHub event name | `push`, `pull_request`, `issues` |
| `repo` | Repository full name | `org/repo` |
| `actor` | Sender login | `username`, `[bot]` |
| `action` | Event action | `opened`, `closed`, `published` |
| `branch` | Branch name | `main`, `develop` |
| `keyword` | Text in payload body | `deploy`, `/fix\s+\d+/` (regex) |
### Filter Behavior
- All filters in a route must match for the route to trigger (AND logic)
- Set `"exclude": true` on any filter to invert it (NOT logic)
- Non-keyword filters are **exact, case-insensitive matches** — no wildcards (`repo: "org/*"` does not match anything)
- `keyword` filter supports regex patterns — falls back to substring match if regex is invalid or longer than 200 characters
- `branch` filter works for push, pull_request, pull_request_review, pull_request_review_comment, create/delete, workflow_run, workflow_job, check_suite, deployment, and code_scanning_alert events
### Match Values
Filters accept either a single string or an array of strings:
```json
{ "type": "event", "match": "push" }
{ "type": "event", "match": ["push", "pull_request"] }
```
## KV Storage Layout
| Key Pattern | Value | TTL |
| ------------------------------ | ----------------------------------------------------------------------------- | ------------------ |
| `config:routes` | JSON array of routes | Permanent |
| `config:groups` | JSON array of groups | Permanent |
| `session:{id}` | Admin session `{ userId, login }` | 7 days |
| `token:{userId}` | `{ userId, accessToken, expiresAt, refreshToken? }` | 0.9 × token expiry |
| `token-reverse:{sha256}` | User id for reverse lookup by token | 0.9 × token expiry |
| `state:{hex}` | `{ redirectTo, expiresAt, discordUserId?, telegramUserId?, telegramChatId? }` | 600 seconds |
| `delivery:{id}` | Webhook delivery id (dedup marker) | 300 seconds |
| `msg:{routeId}:{key}:{target}` | Message id tracking for in-place updates (e.g. `workflow_run`) | 7 days |
| `cmd:guild:{id}` | Guild id whose commands were registered (dedup) | Permanent |
| `cmd:registered:global` | Global command registration marker (dedup) | 1 day |
| `config:discord-app-id` | Cached Discord application id | Permanent |
| `i18n:{lang}` | Translation overrides merged on top of English | Permanent |
## D1 Storage Layout
The D1 database (`DB` binding, database `webhooker`) holds three tables:
| Table | Purpose |
| ---------------- | ---------------------------------------------------------------------------------------------- |
| `send_logs` | One row per dispatch attempt (route id, event, target, ok/error, duration, error code, detail) |
| `discord_links` | Maps `discord_user_id` → `github_user_id` for `/gh` Discord commands |
| `telegram_links` | Maps `telegram_user_id` → `github_user_id` for `/gh` Telegram commands |
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