WIP: CLI running of plugs

plugos/syscalls/fetch.ts

@@ -0,0 +1,25 @@
+import type { SysCallMapping } from "../../plugos/system.ts";
+import {
+  ProxyFetchRequest,
+  ProxyFetchResponse,
+} from "../../common/proxy_fetch.ts";
+import { base64Encode } from "../asset_bundle/base64.ts";
+
+export function sandboxFetchSyscalls(): SysCallMapping {
+  return {
+    "sandboxFetch.fetch": async (
+      _ctx,
+      url: string,
+      options: ProxyFetchRequest,
+    ): Promise<ProxyFetchResponse> => {
+      // console.log("Got sandbox fetch ", url);
+      const resp = await fetch(url, options);
+      return {
+        status: resp.status,
+        ok: resp.ok,
+        headers: Object.fromEntries(resp.headers.entries()),
+        base64Body: base64Encode(new Uint8Array(await resp.arrayBuffer())),
+      };
+    },
+  };
+}