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{"version":3,"file":"parse-proxy-response.js","sources":["../../../src/proxy/parse-proxy-response.ts"],"sourcesContent":["/**\n * This code was originally forked from https://github.com/TooTallNate/proxy-agents/tree/b133295fd16f6475578b6b15bd9b4e33ecb0d0b7\n * With the following licence:\n *\n * (The MIT License)\n *\n * Copyright (c) 2013 Nathan Rajlich <nathan@tootallnate.net>*\n *\n * Permission is hereby granted, free of charge, to any person obtaining\n * a copy of this software and associated documentation files (the\n * 'Software'), to deal in the Software without restriction, including\n * without limitation the rights to use, copy, modify, merge, publish,\n * distribute, sublicense, and/or sell copies of the Software, and to\n * permit persons to whom the Software is furnished to do so, subject to\n * the following conditions:*\n *\n * The above copyright notice and this permission notice shall be\n * included in all copies or substantial portions of the Software.*\n *\n * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,\n * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\n * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\n * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\n * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\n * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n */\n\n/* eslint-disable @typescript-eslint/explicit-function-return-type */\n/* eslint-disable jsdoc/require-jsdoc */\nimport type { IncomingHttpHeaders } from 'http';\nimport type { Readable } from 'stream';\nimport { logger } from '@sentry/utils';\n\nfunction debug(...args: unknown[]): void {\n logger.log('[https-proxy-agent:parse-proxy-response]', ...args);\n}\n\nexport interface ConnectResponse {\n statusCode: number;\n statusText: string;\n headers: IncomingHttpHeaders;\n}\n\nexport function parseProxyResponse(socket: Readable): Promise<{ connect: ConnectResponse; buffered: Buffer }> {\n return new Promise((resolve, reject) => {\n // we need to buffer any HTTP traffic that happens with the proxy before we get\n // the CONNECT response, so that if the response is anything other than an \"200\"\n // response code, then we can re-play the \"data\" events on the socket once the\n // HTTP parser is hooked up...\n let buffersLength = 0;\n const buffers: Buffer[] = [];\n\n function read() {\n const b = socket.read();\n if (b) ondata(b);\n else socket.once('readable', read);\n }\n\n function cleanup() {\n socket.removeListener('end', onend);\n socket.removeListener('error', onerror);\n socket.removeListener('readable', read);\n }\n\n function onend() {\n cleanup();\n debug('onend');\n reject(new Error('Proxy connection ended before receiving CONNECT response'));\n }\n\n function onerror(err: Error) {\n cleanup();\n debug('onerror %o', err);\n reject(err);\n }\n\n function ondata(b: Buffer) {\n buffers.push(b);\n buffersLength += b.length;\n\n const buffered = Buffer.concat(buffers, buffersLength);\n const endOfHeaders = buffered.indexOf('\\r\\n\\r\\n');\n\n if (endOfHeaders === -1) {\n // keep buffering\n debug('have not received end of HTTP headers yet...');\n read();\n return;\n }\n\n const headerParts = buffered.slice(0, endOfHeaders).toString('ascii').split('\\r\\n');\n const firstLine = headerParts.shift();\n if (!firstLine) {\n socket.destroy();\n return reject(new Error('No header received from proxy CONNECT response'));\n }\n const firstLineParts = firstLine.split(' ');\n const statusCode = +firstLineParts[1];\n const statusText = firstLineParts.slice(2).join(' ');\n const headers: IncomingHttpHeaders = {};\n for (const header of headerParts) {\n if (!header) continue;\n const firstColon = header.indexOf(':');\n if (
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