README.md

@@ -8,17 +8,16 @@ The plugin is a WebAssembly component built against the Memona filesystem
 contract, `memona:filesystem@0.1.0`. It uses only the host's sockets; it has no
 ambient filesystem, environment or network access of its own.
 
+This package requires a Memona version that supports plugin manifest schema 2.
+
 ## What it registers
 
 One provider, `ftp`, for the `ftp` and `ftps` schemes. A connection is
 configured with a server name, an optional port, a TLS toggle for FTPS, and an
 optional username and password. An empty username signs in anonymously.
 
-In Memona's connection permissions, enter the server's hostname or IP in
-**Allowed hosts**, without a scheme, port or path. An empty list blocks the
-connection. Turn on **Private network** as well for localhost or a private
-network; this switch does not grant a host by itself. Save and reconnect after
-changing permissions.
+For localhost or a server on a private network, turn on **Private network** in
+the connection settings. Save and reconnect after changing these settings.
 
 The TLS toggle currently starts TLS on the control connection only. Protected
 data connections and explicit `AUTH TLS` negotiation are not implemented, so
@@ -37,11 +36,9 @@ and connects out to it; `PASV` fallback is not implemented. The server picks a f
 transfer and announces it only as the transfer begins, so the range that has to
 be reachable is wide.
 
-`manifest.json` declares `networkPorts` as 21 and 1024-65535, and `networkHosts`
-as `*` because a server can be anywhere. Declaring is not granting: a
-connection reaches only the host and ports the person grants it, and a grant
-never accepts a wildcard host. Grant the control port and the span the server
-uses for its data channel, usually `21` and `1024-65535`.
+The package declares socket ports 21 and 1024-65535, which Memona applies
+automatically to each connection. The control port and passive data ports
+must be within these ranges.
 
 ## Build
 

manifest.json

@@ -1,5 +1,5 @@
 {
-  "schemaVersion": 1,
+  "schemaVersion": 2,
   "id": "memona/ftp",
   "name": "FTP",
   "version": "0.1.3",
@@ -7,7 +7,6 @@
   "description": "Open an FTP server as a folder, and let agents work in it.",
   "license": "MIT",
   "entry": "plugin.wasm",
-  "networkHosts": ["*"],
   "networkPorts": [
     { "from": 21, "to": 21 },
     { "from": 1024, "to": 65535 }

sdk/wit/filesystem.wit

@@ -35,10 +35,10 @@ interface host {
         /// `respond`. An empty result means the body is complete.
         pull: func(limit: u32) -> result<list<u8>, host-error>;
     }
-    /// Begins a request to a host both declared by the package and granted on
-    /// the connection. Each redirect and DNS result is checked, and DNS is
-    /// pinned. Private/LAN addresses additionally require the private-network
-    /// grant. Cross-origin redirects remove request headers; HTTPS cannot
+    /// Begins a request to any public HTTP or HTTPS host. Each redirect and
+    /// DNS result is checked, and DNS is pinned. Private/LAN addresses require
+    /// the connection's private-network grant. Cross-origin redirects remove
+    /// request headers; HTTPS cannot
     /// downgrade. The host bounds total bytes per exchange, not buffer size.
     http: func(request: request) -> result<exchange, host-error>;
 
@@ -51,13 +51,13 @@ interface host {
         /// Writes at most 1,048,576 bytes and returns how many were accepted.
         write: func(data: list<u8>) -> result<u32, host-error>;
     }
-    /// Opens a socket to a host and port both declared by the package and
-    /// granted on the connection. The host resolves and pins DNS, applies the
-    /// same private-address rule as `http`, and starts TLS when asked. Ports
-    /// negotiated at runtime, such as an FTP data channel, still need a grant.
+    /// Opens a socket to any public host on a package-declared port.
+    /// The host resolves and pins DNS, applies the same private-address rule
+    /// as `http`, and starts TLS when asked. Ports
+    /// negotiated at runtime, such as an FTP data channel, must be declared.
     connect: func(host: string, port: u16, tls: bool) -> result<tcp, host-error>;
 
-    /// One datagram socket connected to a single granted peer.
+    /// One datagram socket connected to a single peer.
     resource udp {
         /// Sends one datagram of at most 65,507 bytes.
         send: func(data: list<u8>) -> result<u32, host-error>;
@@ -65,7 +65,7 @@ interface host {
         /// means none arrived inside the host's wait, not that the peer left.
         receive: func(limit: u32) -> result<list<u8>, host-error>;
     }
-    /// Connects a datagram socket under the same declaration and grant rules
+    /// Connects a datagram socket under the same port and private-network rules
     /// as `connect`, for the few filesystem protocols that still need one.
     bind: func(host: string, port: u16) -> result<udp, host-error>;