52 lines
1.6 KiB
TypeScript
52 lines
1.6 KiB
TypeScript
import type { SysCallMapping } from "../../plugos/system.ts";
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import {
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performLocalFetch,
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ProxyFetchRequest,
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ProxyFetchResponse,
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} from "../../common/proxy_fetch.ts";
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import type { Client } from "../client.ts";
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import {
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base64Decode,
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base64Encode,
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} from "../../plugos/asset_bundle/base64.ts";
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export function sandboxFetchSyscalls(
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client: Client,
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): SysCallMapping {
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return {
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"sandboxFetch.fetch": async (
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_ctx,
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url: string,
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options?: ProxyFetchRequest,
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): Promise<ProxyFetchResponse> => {
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// console.log("Got sandbox fetch ", url, op);
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url = url.replace(/^https?:\/\//, "");
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const fetchOptions = options
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? {
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method: options.method,
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headers: options.headers,
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body: options.base64Body && base64Decode(options.base64Body),
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}
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: {};
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if (!client.httpSpacePrimitives) {
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// No SB server to proxy the fetch available so let's execute the request directly
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return performLocalFetch(url, fetchOptions);
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}
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fetchOptions.headers = fetchOptions.headers
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? { ...fetchOptions.headers, "X-Proxy-Request": "true" }
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: { "X-Proxy-Request": "true" };
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const resp = await client.httpSpacePrimitives.authenticatedFetch(
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`${client.httpSpacePrimitives.url}/!${url}`,
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fetchOptions,
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);
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const body = await resp.arrayBuffer();
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return {
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ok: resp.ok,
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status: resp.status,
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headers: Object.fromEntries(resp.headers.entries()),
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base64Body: base64Encode(new Uint8Array(body)),
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};
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},
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};
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}
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