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https://github.com/vercel-labs/scriptc.git
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Chris Tate
b7bcbc68d8
A byte write to a replaced process.stdout.write or process.stderr.write
was boxed with the 'data' chunk helper, which answers a string while a
listener of a socket or HTTP response with setEncoding("utf8") runs. A
`process.stdout.write(buffer)` from such a listener reached the
replacement as a string. Node passes the Buffer it was given.
The stdio hook now boxes a byte write as a Buffer whatever listener is
running.
33 lines
1.3 KiB
TypeScript
33 lines
1.3 KiB
TypeScript
// A Buffer written to a replaced process.stdout.write from a 'data' listener
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// of a socket or an HTTP response with setEncoding("utf8") arrives as a
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// Buffer; the listener's own chunks are strings. patch.mjs installs the
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// replacement and prints what it received at exit.
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import * as http from "node:http";
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import * as net from "node:net";
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import "./patch.mjs";
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const tcp = net.createServer((socket) => socket.end("tcp-data"));
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tcp.listen(0, "127.0.0.1", () => {
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const port = (tcp.address() as net.AddressInfo).port;
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const client = net.connect(port, "127.0.0.1");
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client.setEncoding("utf8");
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client.on("data", (text: string) => {
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process.stdout.write(Buffer.from(`socket ${typeof text} ${text}`));
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process.stdout.write(`socket text ${text}`);
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});
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client.on("end", () => {
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tcp.close();
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const server = http.createServer((req, res) => res.end("http-data"));
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server.listen(0, "127.0.0.1", () => {
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const httpPort = (server.address() as net.AddressInfo).port;
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http.get(`http://127.0.0.1:${httpPort}/`, (res) => {
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res.setEncoding("utf8");
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res.on("data", (text: string) => {
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process.stdout.write(Buffer.from(`response ${typeof text} ${text}`));
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});
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res.on("end", () => server.close());
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});
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});
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});
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});
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