@fanoutio/grip/build/node/utilities/ws-over-http.js

GRIP Interface Library

import { getWebSocketContextImpl, isWsOverHttpImpl } from '../../utilities/index.js';
function headersFromNodeIncomingHttpHeaders(incomingHttpHeaders) {
    const headers = new Headers();
    for (const [key, value] of Object.entries(incomingHttpHeaders)) {
        if (value == null) {
            continue;
        }
        if (!Array.isArray(value)) {
            headers.append(key, value);
            continue;
        }
        // Should only be for set-cookie
        // https://nodejs.org/api/http.html#messageheaders
        for (const entry of value) {
            headers.append(key, entry);
        }
    }
    return headers;
}
export function isNodeReqWsOverHttp(req) {
    return isWsOverHttpImpl(req.method, headersFromNodeIncomingHttpHeaders(req.headers));
}
export async function getWebSocketContextFromNodeReq(req, prefix = '') {
    return getWebSocketContextImpl(headersFromNodeIncomingHttpHeaders(req.headers), async () => {
        return new Promise(resolve => {
            const bodyParts = [];
            req.on('data', (chunk) => {
                if (typeof chunk === 'string') {
                    chunk = Buffer.from(chunk);
                }
                bodyParts.push(chunk);
            });
            req.on('end', () => {
                const body = Buffer.concat(bodyParts);
                resolve(body);
            });
        });
    }, prefix);
}