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: / var / canvas / node_modules / https-proxy-agent / dist /
Filename : parse-proxy-response.js
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"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const debug_1 = __importDefault(require("debug"));
const debug = debug_1.default('https-proxy-agent:parse-proxy-response');
function parseProxyResponse(socket) {
    return new Promise((resolve, reject) => {
        // we need to buffer any HTTP traffic that happens with the proxy before we get
        // the CONNECT response, so that if the response is anything other than an "200"
        // response code, then we can re-play the "data" events on the socket once the
        // HTTP parser is hooked up...
        let buffersLength = 0;
        const buffers = [];
        function read() {
            const b = socket.read();
            if (b)
                ondata(b);
            else
                socket.once('readable', read);
        }
        function cleanup() {
            socket.removeListener('end', onend);
            socket.removeListener('error', onerror);
            socket.removeListener('close', onclose);
            socket.removeListener('readable', read);
        }
        function onclose(err) {
            debug('onclose had error %o', err);
        }
        function onend() {
            debug('onend');
        }
        function onerror(err) {
            cleanup();
            debug('onerror %o', err);
            reject(err);
        }
        function ondata(b) {
            buffers.push(b);
            buffersLength += b.length;
            const buffered = Buffer.concat(buffers, buffersLength);
            const endOfHeaders = buffered.indexOf('\r\n\r\n');
            if (endOfHeaders === -1) {
                // keep buffering
                debug('have not received end of HTTP headers yet...');
                read();
                return;
            }
            const firstLine = buffered.toString('ascii', 0, buffered.indexOf('\r\n'));
            const statusCode = +firstLine.split(' ')[1];
            debug('got proxy server response: %o', firstLine);
            resolve({
                statusCode,
                buffered
            });
        }
        socket.on('error', onerror);
        socket.on('close', onclose);
        socket.on('end', onend);
        read();
    });
}
exports.default = parseProxyResponse;
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