Add proper locking/unlocking to WebDAV.

Tweak README, add one-click deploy for Digital Ocean and Render.

.do/deploy.template.yaml

@@ -0,0 +1,43 @@
+spec:
+  name: bewcloud
+  envs:
+    - key: BASE_URL
+      scope: RUN_AND_BUILD_TIME
+      value: ${app.PUBLIC_URL}
+  services:
+    - name: app
+      dockerfile_path: Dockerfile
+      git:
+        branch: main
+      http_port: 8000
+      instance_count: 1
+      instance_size_slug: basic-xs
+      routes:
+        - path: /
+      health_check:
+        http_path: /
+      source_dir: /
+      envs:
+        - key: POSTGRESQL_HOST
+          scope: RUN_AND_BUILD_TIME
+          value: ${db.HOSTNAME}
+        - key: POSTGRESQL_USER
+          scope: RUN_AND_BUILD_TIME
+          value: ${db.USERNAME}
+        - key: POSTGRESQL_PASSWORD
+          scope: RUN_AND_BUILD_TIME
+          value: ${db.PASSWORD}
+        - key: POSTGRESQL_DBNAME
+          scope: RUN_AND_BUILD_TIME
+          value: ${db.DATABASE}
+        - key: POSTGRESQL_PORT
+          scope: RUN_AND_BUILD_TIME
+          value: ${db.PORT}
+        - key: POSTGRESQL_CAFILE
+          scope: RUN_AND_BUILD_TIME
+          value: ""
+  databases:
+    - name: db
+      engine: PG
+      production: false
+      version: "15"

README.md

@@ -8,11 +8,14 @@ If you're looking for the desktop sync app, it's at [`bewcloud-desktop`](https:/
 
 If you're looking for the mobile app, it's at [`bewcloud-mobile`](https://github.com/bewcloud/bewcloud-mobile).
 
-> [!CAUTION]
-> This is actively being built and should be considered pre-alpha. Bugs will exist. Code and models _can_ change without a good upgrade path (though I'll try to avoid that). **Don't use it as your only source of data!**
-
 ## Self-host it!
 
+[![Deploy to DigitalOcean](https://www.deploytodo.com/do-btn-blue.svg)](https://cloud.digitalocean.com/apps/new?repo=https://github.com/bewcloud/bewcloud)
+
+[![Deploy to Render](https://render.com/images/deploy-to-render-button.svg)](https://render.com/deploy?repo=https://github.com/bewcloud/bewcloud)
+
+Or on your own machine:
+
 Download/copy [`docker-compose.yml`](/docker-compose.yml) and [`.env.sample`](/.env.sample) as `.env`.
 
 ```sh
@@ -54,8 +57,8 @@ $ make build # generates all static files for production deploy
 
 - Routes defined at `routes/`.
 - Static files are defined at `static/`.
-- Static frontend components are defined at `components/`.
-- Interactive frontend components are defined at `islands/`.
+- Frontend-only components are defined at `components/`.
+- Isomorphic components are defined at `islands/`.
 - Cron jobs are defined at `crons/`.
 - Reusable bits of code are defined at `lib/`.
 - Database migrations are defined at `db-migrations/`.

render.yaml

@@ -0,0 +1,36 @@
+services:
+  - type: web
+    name: bewcloud
+    env: docker
+    plan: starter
+    healthCheckPath: /
+    envVars:
+      - key: BASE_URL
+        fromService:
+          name: bewcloud
+          type: web
+          property: host
+      - key: POSTGRESQL_HOST
+        fromDatabase:
+          name: bewcloud
+          property: host
+      - key: POSTGRESQL_USER
+        fromDatabase:
+          name: bewcloud
+          property: user
+      - key: POSTGRESQL_PASSWORD
+        fromDatabase:
+          name: bewcloud
+          property: password
+      - key: POSTGRESQL_DBNAME
+        fromDatabase:
+          name: bewcloud
+          property: database
+      - key: POSTGRESQL_PORT
+        fromDatabase:
+          name: bewcloud
+          property: port
+
+databases:
+  - name: bewcloud
+    plan: starter

routes/dav.tsx

@@ -4,6 +4,7 @@ import { parse, stringify } from 'xml';
 
 import { FreshContextState } from '/lib/types.ts';
 import { getFilesRootPath } from '/lib/config.ts';
+import Locker from '/lib/interfaces/locker.ts';
 import {
   addDavPrefixToKeys,
   buildPropFindResponse,
@@ -148,8 +149,10 @@ export const handler: Handler<Data, FreshContextState> = async (request, context
     const xml = await request.clone().text();
     const parsedXml = parse(xml) as Record<string, any>;
 
-    // TODO: This should create an actual lock, not just "pretend", and have it checked when fetching a directory/file
     const lockToken = crypto.randomUUID();
+    const lock = new Locker(`dav:${lockToken}`);
+
+    await lock.acquire();
 
     const responseXml: Record<string, any> = {
       xml: {
@@ -188,8 +191,9 @@ export const handler: Handler<Data, FreshContextState> = async (request, context
   }
 
   if (request.method === 'UNLOCK') {
-    // TODO: This should release an actual lock, not just "pretend"
-    // const lockToken = request.headers.get('Lock-Token');
+    const lockToken = request.headers.get('Lock-Token');
+    const lock = new Locker(`dav:${lockToken}`);
+    lock.release();
 
     return new Response(null, {
       status: 204,