Open a WebDAV server as a folder, starting from the WebDAV plugin's code

2026-09-26 01:34:51 +09:00
parent 5d591b2fb0
commit 57347acdb6
11 changed files with 1510 additions and 0 deletions
@@ -5,3 +5,63 @@ saved to it with an ENS name, writing `signer` and `signature` into the file's
 frontmatter so anyone can check who wrote it against the name's current ENSv2
 records. Signing and verification come from the
 [md-ens-signature](https://github.com/capsulizers/md-ens-signature) library.
+
+The plugin is a WASI component: it speaks no sockets of its own and makes every
+request through the host's HTTP interface, under the connection's permissions.
+It registers one provider, `signature`, for the `signed-webdav` scheme.
+
+## Connecting
+
+| Field | Meaning |
+| --- | --- |
+| Server address | The folder's address, for example `https://dav.example.com/files/` |
+| Username | Optional account name for HTTP basic authentication |
+| Password | Optional password, stored as a secret |
+
+Listing, reading, writing, creating directories, renaming and deleting behave
+as in the WebDAV plugin: reads and writes stream in pieces of at most 1 MiB,
+conditional writes use `If-Match` and `If-None-Match`, change polling is not
+supported, a rename never replaces an existing target, and a folder with
+contents is refused rather than removed whole.
+
+## Building
+
+```sh
+rustup target add wasm32-wasip2
+cargo build --locked --release --target wasm32-wasip2
+cargo test --locked --lib
+```
+
+The component lands at
+`target/wasm32-wasip2/release/memona_plugin_signature.wasm`.
+
+`wit/filesystem.wit` is a copy of the canonical Memona filesystem contract, and
+`src/sdk.rs` generates the guest bindings from it, so this repository builds
+without a Memona checkout. Refresh the copy from `plugin_system/sdk/wit` in the
+[Memona repository](https://git.capsulizers.com/lead/memona) when the contract
+moves, and keep `apiVersion` in `manifest.json` in step.
+
+## Packaging for the plugin store
+
+A `.memona-plugin` package is a ZIP archive with the files at its root, never
+inside a directory:
+
+```sh
+cargo build --locked --release --target wasm32-wasip2
+cp target/wasm32-wasip2/release/memona_plugin_signature.wasm plugin.wasm
+zip memona-plugin-signature.memona-plugin \
+  manifest.json plugin.wasm README.md LICENSE
+```
+
+`manifest.json` and `plugin.wasm` are required; `README.md` becomes the guide on
+the plugin's public page and `LICENSE` is shown beside it.
+
+## Attribution
+
+The WebDAV code in `src/lib.rs`, `src/dav.rs` and `src/sdk.rs` is copied from
+the MIT-licensed
+[Memona WebDAV plugin](https://git.capsulizers.com/commons/memona-plugin-webdav)
+at commit `3d69750`. That crate keeps its provider, reader and writer private
+and exports the component's entry points itself, so it cannot be wrapped as a
+dependency without forking it; the copy stays as close to the original as the
+signing hook allows, so fixes there carry over with a plain diff.