fix(cli/ops/net): add write permissions for unixpackets datagrams & u…

…nix socket (denoland#8511)

Fixes denoland#7781

cli/ops/net.rs

@@ -229,7 +229,7 @@ async fn op_datagram_send(
       let address_path = Path::new(&args.path);
       {
         let s = state.borrow();
-        s.borrow::<Permissions>().check_read(&address_path)?;
+        s.borrow::<Permissions>().check_write(&address_path)?;
       }
       let mut state = state.borrow_mut();
       let resource = state
@@ -308,6 +308,7 @@ async fn op_connect(
       {
         let state_ = state.borrow();
         state_.borrow::<Permissions>().check_read(&address_path)?;
+        state_.borrow::<Permissions>().check_write(&address_path)?;
       }
       let path = args.path;
       let unix_stream = net_unix::UnixStream::connect(Path::new(&path)).await?;

cli/tests/unit/net_test.ts

@@ -65,6 +65,44 @@ unitTest(
   },
 );
 
+unitTest(
+  { ignore: Deno.build.os === "windows", perms: { read: true } },
+  function netUnixListenWritePermission(): void {
+    try {
+      const filePath = Deno.makeTempFileSync();
+      const socket = Deno.listen({
+        path: filePath,
+        transport: "unix",
+      });
+      assert(socket.addr.transport === "unix");
+      assertEquals(socket.addr.path, filePath);
+      socket.close();
+    } catch (e) {
+      assert(!!e);
+      assert(e instanceof Deno.errors.PermissionDenied);
+    }
+  },
+);
+
+unitTest(
+  { ignore: Deno.build.os === "windows", perms: { read: true } },
+  function netUnixPacketListenWritePermission(): void {
+    try {
+      const filePath = Deno.makeTempFileSync();
+      const socket = Deno.listenDatagram({
+        path: filePath,
+        transport: "unixpacket",
+      });
+      assert(socket.addr.transport === "unixpacket");
+      assertEquals(socket.addr.path, filePath);
+      socket.close();
+    } catch (e) {
+      assert(!!e);
+      assert(e instanceof Deno.errors.PermissionDenied);
+    }
+  },
+);
+
 unitTest(
   {
     perms: { net: true },