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https://github.com/denoland/deno.git
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fix(ext/flash): don't block requests (#15852)
This commit is contained in:
Divy Srivastava
GitHub
parent
73efed218f
commit
b26d0b8a03
1 changed files with 215 additions and 173 deletions
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@ -32,6 +32,7 @@
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TypedArrayPrototypeSubarray,
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TypeError,
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Uint8Array,
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Promise,
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Uint8ArrayPrototype,
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} = window.__bootstrap.primordials;
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@ -227,142 +228,23 @@
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}
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}
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async function serve(arg1, arg2) {
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let options = undefined;
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let handler = undefined;
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if (arg1 instanceof Function) {
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handler = arg1;
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options = arg2;
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} else if (arg2 instanceof Function) {
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handler = arg2;
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options = arg1;
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} else {
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options = arg1;
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}
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if (handler === undefined) {
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if (options === undefined) {
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throw new TypeError(
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"No handler was provided, so an options bag is mandatory.",
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);
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}
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handler = options.handler;
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}
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if (!(handler instanceof Function)) {
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throw new TypeError("A handler function must be provided.");
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}
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if (options === undefined) {
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options = {};
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}
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const signal = options.signal;
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const onError = options.onError ?? function (error) {
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console.error(error);
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return new Response("Internal Server Error", { status: 500 });
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};
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const onListen = options.onListen ?? function ({ port }) {
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console.log(
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`Listening on http://${
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hostnameForDisplay(listenOpts.hostname)
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}:${port}/`,
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);
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};
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const listenOpts = {
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hostname: options.hostname ?? "127.0.0.1",
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port: options.port ?? 9000,
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};
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if (options.cert || options.key) {
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if (!options.cert || !options.key) {
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throw new TypeError(
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"Both cert and key must be provided to enable HTTPS.",
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);
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}
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listenOpts.cert = options.cert;
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listenOpts.key = options.key;
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}
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const serverId = core.ops.op_flash_serve(listenOpts);
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const serverPromise = core.opAsync("op_flash_drive_server", serverId);
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core.opAsync("op_flash_wait_for_listening", serverId).then((port) => {
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onListen({ hostname: listenOpts.hostname, port });
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}).catch(() => {});
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const finishedPromise = serverPromise.catch(() => {});
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const server = {
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id: serverId,
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transport: listenOpts.cert && listenOpts.key ? "https" : "http",
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hostname: listenOpts.hostname,
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port: listenOpts.port,
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closed: false,
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finished: finishedPromise,
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async close() {
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if (server.closed) {
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return;
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}
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server.closed = true;
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await core.opAsync("op_flash_close_server", serverId);
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await server.finished;
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},
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async serve() {
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let offset = 0;
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while (true) {
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if (server.closed) {
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break;
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}
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let tokens = nextRequestSync();
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if (tokens === 0) {
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tokens = await core.opAsync("op_flash_next_async", serverId);
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if (server.closed) {
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break;
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}
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}
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for (let i = offset; i < offset + tokens; i++) {
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let body = null;
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// There might be a body, but we don't expose it for GET/HEAD requests.
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// It will be closed automatically once the request has been handled and
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// the response has been sent.
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const method = getMethodSync(i);
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let hasBody = method > 2; // Not GET/HEAD/CONNECT
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if (hasBody) {
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body = createRequestBodyStream(serverId, i);
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if (body === null) {
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hasBody = false;
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}
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}
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const req = fromFlashRequest(
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serverId,
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/* streamRid */
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i,
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// TODO(@littledivy): Woah woah, cut down the number of arguments.
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async function handleResponse(
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req,
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resp,
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body,
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/* methodCb */
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() => methods[method],
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/* urlCb */
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() => {
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const path = core.ops.op_flash_path(serverId, i);
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return `${server.transport}://${server.hostname}:${server.port}${path}`;
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},
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/* headersCb */
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() => core.ops.op_flash_headers(serverId, i),
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);
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let resp;
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try {
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resp = await handler(req);
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} catch (e) {
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resp = await onError(e);
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}
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hasBody,
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method,
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serverId,
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i,
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respondFast,
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respondChunked,
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) {
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// there might've been an HTTP upgrade.
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if (resp === undefined) {
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return;
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}
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const innerResp = toInnerResponse(resp);
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// If response body length is known, it will be sent synchronously in a
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// single op, in other case a "response body" resource will be created and
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// we'll be streaming it.
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@ -529,7 +411,167 @@
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}
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ws[_serverHandleIdleTimeout]();
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}
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})().catch(onError);
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})();
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}
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async function serve(arg1, arg2) {
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let options = undefined;
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let handler = undefined;
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if (arg1 instanceof Function) {
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handler = arg1;
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options = arg2;
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} else if (arg2 instanceof Function) {
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handler = arg2;
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options = arg1;
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} else {
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options = arg1;
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}
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if (handler === undefined) {
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if (options === undefined) {
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throw new TypeError(
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"No handler was provided, so an options bag is mandatory.",
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);
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}
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handler = options.handler;
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}
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if (!(handler instanceof Function)) {
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throw new TypeError("A handler function must be provided.");
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}
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if (options === undefined) {
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options = {};
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}
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const signal = options.signal;
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const onError = options.onError ?? function (error) {
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console.error(error);
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return new Response("Internal Server Error", { status: 500 });
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};
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const onListen = options.onListen ?? function ({ port }) {
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console.log(
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`Listening on http://${
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hostnameForDisplay(listenOpts.hostname)
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}:${port}/`,
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);
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};
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const listenOpts = {
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hostname: options.hostname ?? "127.0.0.1",
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port: options.port ?? 9000,
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};
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if (options.cert || options.key) {
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if (!options.cert || !options.key) {
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throw new TypeError(
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"Both cert and key must be provided to enable HTTPS.",
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);
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}
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listenOpts.cert = options.cert;
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listenOpts.key = options.key;
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}
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const serverId = core.ops.op_flash_serve(listenOpts);
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const serverPromise = core.opAsync("op_flash_drive_server", serverId);
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core.opAsync("op_flash_wait_for_listening", serverId).then((port) => {
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onListen({ hostname: listenOpts.hostname, port });
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}).catch(() => {});
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const finishedPromise = serverPromise.catch(() => {});
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const server = {
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id: serverId,
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transport: listenOpts.cert && listenOpts.key ? "https" : "http",
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hostname: listenOpts.hostname,
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port: listenOpts.port,
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closed: false,
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finished: finishedPromise,
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async close() {
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if (server.closed) {
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return;
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}
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server.closed = true;
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await core.opAsync("op_flash_close_server", serverId);
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await server.finished;
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},
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async serve() {
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let offset = 0;
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while (true) {
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if (server.closed) {
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break;
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}
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let tokens = nextRequestSync();
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if (tokens === 0) {
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tokens = await core.opAsync("op_flash_next_async", serverId);
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if (server.closed) {
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break;
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}
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}
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for (let i = offset; i < offset + tokens; i++) {
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let body = null;
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// There might be a body, but we don't expose it for GET/HEAD requests.
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// It will be closed automatically once the request has been handled and
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// the response has been sent.
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const method = getMethodSync(i);
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let hasBody = method > 2; // Not GET/HEAD/CONNECT
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if (hasBody) {
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body = createRequestBodyStream(serverId, i);
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if (body === null) {
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hasBody = false;
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}
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}
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const req = fromFlashRequest(
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serverId,
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/* streamRid */
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i,
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body,
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/* methodCb */
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() => methods[method],
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/* urlCb */
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() => {
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const path = core.ops.op_flash_path(serverId, i);
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return `${server.transport}://${server.hostname}:${server.port}${path}`;
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},
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/* headersCb */
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() => core.ops.op_flash_headers(serverId, i),
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);
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let resp;
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try {
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resp = handler(req);
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if (resp instanceof Promise || typeof resp.then === "function") {
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resp.then((resp) =>
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handleResponse(
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req,
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resp,
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body,
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hasBody,
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method,
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serverId,
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i,
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respondFast,
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respondChunked,
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)
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).catch(onError);
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continue;
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}
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} catch (e) {
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resp = await onError(e);
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}
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handleResponse(
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req,
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resp,
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body,
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hasBody,
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method,
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serverId,
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i,
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respondFast,
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respondChunked,
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);
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}
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offset += tokens;
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