Federated Wiki - FarmManager Plugin
Plugin for managing a wiki instance as a farm of multiple wiki sites.
The focus of this plugin is to allow for programmatic, centralized management of a wiki farm by a farm administrator. It is intended to supersede wiki-plugin-register by providing administrative oversight rather than self-service registration.
Design Philosophy
- Admin-Focused: All features are designed to be used by a farm administrator. Access will be restricted to admin users.
- JSON API: The server-side component will expose a well-defined API for managing sites. This ensures the API is predictable and can be used by other tools, not just our web interface.
- Clear Separation: The backend (API) and frontend (web interface) will be clearly separated. The web interface will be a client of the API.
- Safety: Destructive operations (like deleting a site) are non-destructive by default and require confirmation.
API Design
Authentication for all endpoints will be handled by a middleware that checks app.securityhandler.isAdmin(req).
Endpoints
-
GET /plugin/farmmanager/sites- Action: List all wiki sites in the farm.
- Response Body: An array of site objects.
[{ "name": "site1.myfarm.com", "owner": "Alice", "pages": 12, "status": "active" }, ...]
-
POST /plugin/farmmanager/sites- Action: Create a new wiki site.
- Request Body:
{ "domain": "newsite", "owner": "Bob" } - Response Body: The new site object.
-
GET /plugin/farmmanager/sites/:domain- Action: Get detailed information for a single site.
- URL Parameter:
:domainis the full domain of the site (e.g.,site1.myfarm.com). - Response Body: A single site object.
-
PATCH /plugin/farmmanager/sites/:domain- Action: Partially update a site's properties (preserves unspecified fields).
- Request Body:
{ "owner": {"name": "Carol", ...} }or{ "status": "active" }or both - Status values:
active,readonly, orarchived(see Site states). This is the canonical, reversible way to move a site between states in either direction. The legacy valueinactiveis accepted as an alias ofarchived. - Response Body: The updated site object.
Site states
A site's status (stored in <site>/status.json and surfaced on every site object) is one of three states. Every transition is explicit, reversible in both directions via PATCH …/sites/:domain { "status": … }, and non-destructive — page content is always retained on disk (only DELETE …?hard=true removes anything).
| State | Pages served? | Edits / forks / new pages? | Content on disk | On-site indicator |
|---|---|---|---|---|
active |
yes | allowed | retained | none |
readonly |
yes (readable) | blocked | retained | subtle top banner |
archived |
no — every page returns a notice | blocked | retained | full-page "Site archived" notice |
active— normal, fully editable site.readonly— pages are still served and readable, but edits, forks, and new pages are blocked. A subtle banner tells viewers the owner can't edit here. Idempotent: re-applyingreadonlykeeps the originalreadOnlyAttimestamp; returning toactiveclears it.archived— the site is taken offline: every page read returns a "this site has been archived and is no longer served; its content is preserved" notice, and all writes are blocked. Content is retained on disk and the site can be restored at any time byPATCH-ing the status back toactive(orreadonly). Records an idempotentarchivedAttimestamp. This is the non-destructive, reversible replacement for the old soft-delete; the legacy on-disk valueinactiveis treated asarchived.
How enforcement works (plugin-only, no wiki-server changes). In farm mode each site runs its own server instance; the plugin re-reads the site's status.json per request, so a state change made from the admin site takes effect immediately.
- Writes — wiki-server gates every content-mutating route (edit/add/remove/move/create/fork via
PUT /page/:slug/action, pageDELETE, favicon upload, recycler deletes) behind a singlesecurityhandler.isAuthorized(req)check, while public reads never call it. The plugin wraps that handler to deny whenever the current state blocks writes (readonlyandarchived).isAdminis left intact, so the farm-manager API can always flip the state back. - Reads — public page reads consult no security hook, but every page read funnels through
pagehandler.get(slug, cb)(the.htmland.jsonpage routes both call it). Forarchivedthe plugin wraps that method to return the notice page instead of real content, taking the site offline without deleting anything. The notice is served with a normal200status on purpose: the wiki client treats a non-2xx page fetch as a missing page and wouldn't render the body, so a4xx/5xxwould degrade to a generic "page not found" rather than showing the notice.readonlyis unaffected — it still serves real pages.
On-site read-only indicator (plugin-only). The wiki client always loads /theme/style.css (served from <site>/status/theme/style.css). When a site goes readonly the plugin writes a small, clearly-delimited banner rule into that stylesheet, and removes only that block when the site leaves readonly — any owner-authored theme CSS is preserved. Because CSS cannot read the per-request isOwner flag, the banner shows to every visitor of a read-only site, not only the owner. (archived needs no banner — visitors get the full notice page instead.)
Known limitation. archived replaces page reads with the notice, but wiki-server's system JSON endpoints (/system/sitemap.json, /system/slugs.json, /system/site-index.json) don't route through pagehandler.get, so slug/index metadata remains reachable by direct request. Sealing those too would require also wrapping the sitemap/search handlers — out of scope for now.
DELETE /plugin/farmmanager/sites/:domain- Action: Archive a wiki site (soft delete — non-destructive). Writes
status.jsonwithstatus: "archived". Equivalent toPATCH { "status": "archived" };PATCHis the canonical path, butDELETEis kept for backward compatibility. - Query Parameters:
hard=true- Permanently delete the site directory and all its contents (irreversible). This is the only destructive operation.
- Response Body:
{ "status": "ok", "message": "Site site1.myfarm.com archived." }
- Action: Archive a wiki site (soft delete — non-destructive). Writes
Web Interface Design
The client component (farmmanager plugin item) renders an admin dashboard inside a wiki page. It lists every site in the farm with its owner, page count, and a status badge (active / read-only / archived). Each row shows a one-click button for every state the site is not currently in (e.g. an active site offers Make read-only and Archive), so every transition is reachable in both directions. It calls the JSON API above, so it inherits the same admin-only access control; non-admin or non-farm responses are surfaced as an inline message. Add it to a page like any other plugin item (a farmmanager story item), ideally on your designated admin site.
Development Plan
We can build this in phases.
-
Phase 1: Backend API
- Setup: Create the basic
server/server.jsfile andadminsecurity middleware. - List Sites (Read): Implement the
GET /sitesendpoint. This will involve scanning the data directory for site folders and reading theirowner.jsonandstatus.json. - Create Site: Implement the
POST /sitesendpoint. This can borrow logic fromwiki-plugin-registerbut will be wrapped in admin security. - Deactivate Site: Implement the
DELETE /sites/:domainendpoint. This will involve creating or updating astatus.jsonfile in the site's directory. - Update Site: Implement the
PUT /sites/:domainendpoint to change theowner.json.
- Setup: Create the basic
-
Phase 2: Frontend UI
- TBD after the backend API is stable.
Roadmap
- Search/Filter: Add a search or filter feature to the UI for farms with many sites.
- UI Pattern Documentation: Create documentation for the pattern of building plugins that render as components within a wiki page.
Architecture Notes
Site-Level Plugin with Farm-Level Scope
This plugin follows the standard FedWiki plugin architecture, which means it is loaded per-site when you navigate to a specific site in the farm. However, its purpose is to manage farm-level resources (all sites in the farm).
What this means in practice:
-
Access Pattern: You must first navigate to a specific site (e.g.,
http://localhost) to load the plugin. Once loaded, the API endpoints are available and can manage all sites in the farm. -
Admin Site Approach: In practice, designate one site as your "admin site" (e.g.,
localhostoradmin.example.com) and always access the farm management API through that site. -
Data Directory Resolution: The plugin receives
argv.datapointing to the current site's directory (e.g.,/data-farm/localhost). It usespath.resolve(argv.data, '..')to access the parent farm directory and enumerate all sites. -
Security Context: Admin authentication and authorization are tied to the site you're accessing the API from, which aligns with FedWiki's per-site security model.
This is consistent with how other farm-management plugins (like wiki-plugin-register) operate in the FedWiki ecosystem.
Build
npm install
npm run build
License
MIT