ccxt
Version:
96 lines (93 loc) • 3.57 kB
JavaScript
// ----------------------------------------------------------------------------
// PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
// https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
// EDIT THE CORRESPONDENT .ts FILE INSTEAD
export 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 headerParts = buffered.toString('ascii').split('\r\n');
const firstLine = headerParts.shift();
if (!firstLine) {
throw new Error('No header received');
}
const firstLineParts = firstLine.split(' ');
const statusCode = +firstLineParts[1];
const statusText = firstLineParts.slice(2).join(' ');
const headers = {};
for (const header of headerParts) {
if (!header)
continue;
const firstColon = header.indexOf(':');
if (firstColon === -1) {
throw new Error(`Invalid header: "${header}"`);
}
const key = header.slice(0, firstColon).toLowerCase();
const value = header.slice(firstColon + 1).trimStart();
const current = headers[key];
if (typeof current === 'string') {
headers[key] = [current, value];
}
else if (Array.isArray(current)) {
current.push(value);
}
else {
headers[key] = value;
}
}
// debug('got proxy server response: %o', firstLine);
cleanup();
resolve({
connect: {
statusCode,
statusText,
headers,
},
buffered,
});
}
socket.on('error', onerror);
socket.on('close', onclose);
socket.on('end', onend);
read();
});
}