superagent/lib/node/http2wrapper.js

"use strict";

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

const Stream = require('stream');

const util = require('util');

const net = require('net');

const tls = require('tls'); // eslint-disable-next-line node/no-deprecated-api


const _require = require('url'),
      parse = _require.parse;

const process = require('process');

const semverGte = require('semver/functions/gte');

let http2;
if (semverGte(process.version, 'v10.10.0')) http2 = require('http2');else throw new Error('superagent: this version of Node.js does not support http2');
const _http2$constants = http2.constants,
      HTTP2_HEADER_PATH = _http2$constants.HTTP2_HEADER_PATH,
      HTTP2_HEADER_STATUS = _http2$constants.HTTP2_HEADER_STATUS,
      HTTP2_HEADER_METHOD = _http2$constants.HTTP2_HEADER_METHOD,
      HTTP2_HEADER_AUTHORITY = _http2$constants.HTTP2_HEADER_AUTHORITY,
      HTTP2_HEADER_HOST = _http2$constants.HTTP2_HEADER_HOST,
      HTTP2_HEADER_SET_COOKIE = _http2$constants.HTTP2_HEADER_SET_COOKIE,
      NGHTTP2_CANCEL = _http2$constants.NGHTTP2_CANCEL;

function setProtocol(protocol) {
  return {
    request(options) {
      return new Request(protocol, options);
    }

  };
}

function Request(protocol, options) {
  Stream.call(this);
  const defaultPort = protocol === 'https:' ? 443 : 80;
  const defaultHost = 'localhost';
  const port = options.port || defaultPort;
  const host = options.host || defaultHost;
  delete options.port;
  delete options.host;
  this.method = options.method;
  this.path = options.path;
  this.protocol = protocol;
  this.host = host;
  delete options.method;
  delete options.path;

  const sessionOptions = _objectSpread({}, options);

  if (options.socketPath) {
    sessionOptions.socketPath = options.socketPath;
    sessionOptions.createConnection = this.createUnixConnection.bind(this);
  }

  this._headers = {};
  const session = http2.connect(`${protocol}//${host}:${port}`, sessionOptions);
  this.setHeader('host', `${host}:${port}`);
  session.on('error', error => this.emit('error', error));
  this.session = session;
}
/**
 * Inherit from `Stream` (which inherits from `EventEmitter`).
 */


util.inherits(Request, Stream);

Request.prototype.createUnixConnection = function (authority, options) {
  switch (this.protocol) {
    case 'http:':
      return net.connect(options.socketPath);

    case 'https:':
      options.ALPNProtocols = ['h2'];
      options.servername = this.host;
      options.allowHalfOpen = true;
      return tls.connect(options.socketPath, options);

    default:
      throw new Error('Unsupported protocol', this.protocol);
  }
};

Request.prototype.setNoDelay = function (bool) {// We can not use setNoDelay with HTTP/2.
  // Node 10 limits http2session.socket methods to ones safe to use with HTTP/2.
  // See also https://nodejs.org/api/http2.html#http2_http2session_socket
};

Request.prototype.getFrame = function () {
  if (this.frame) {
    return this.frame;
  }

  const method = {
    [HTTP2_HEADER_PATH]: this.path,
    [HTTP2_HEADER_METHOD]: this.method
  };
  let headers = this.mapToHttp2Header(this._headers);
  headers = Object.assign(headers, method);
  const frame = this.session.request(headers);
  frame.once('response', (headers, flags) => {
    headers = this.mapToHttpHeader(headers);
    frame.headers = headers;
    frame.statusCode = headers[HTTP2_HEADER_STATUS];
    frame.status = frame.statusCode;
    this.emit('response', frame);
  });
  this._headerSent = true;
  frame.once('drain', () => this.emit('drain'));
  frame.on('error', error => this.emit('error', error));
  frame.on('close', () => this.session.close());
  this.frame = frame;
  return frame;
};

Request.prototype.mapToHttpHeader = function (headers) {
  const keys = Object.keys(headers);
  const http2Headers = {};

  for (var _i = 0, _keys = keys; _i < _keys.length; _i++) {
    let key = _keys[_i];
    let value = headers[key];
    key = key.toLowerCase();

    switch (key) {
      case HTTP2_HEADER_SET_COOKIE:
        value = Array.isArray(value) ? value : [value];
        break;

      default:
        break;
    }

    http2Headers[key] = value;
  }

  return http2Headers;
};

Request.prototype.mapToHttp2Header = function (headers) {
  const keys = Object.keys(headers);
  const http2Headers = {};

  for (var _i2 = 0, _keys2 = keys; _i2 < _keys2.length; _i2++) {
    let key = _keys2[_i2];
    let value = headers[key];
    key = key.toLowerCase();

    switch (key) {
      case HTTP2_HEADER_HOST:
        key = HTTP2_HEADER_AUTHORITY;
        value = /^http:\/\/|^https:\/\//.test(value) ? parse(value).host : value;
        break;

      default:
        break;
    }

    http2Headers[key] = value;
  }

  return http2Headers;
};

Request.prototype.setHeader = function (name, value) {
  this._headers[name.toLowerCase()] = value;
};

Request.prototype.getHeader = function (name) {
  return this._headers[name.toLowerCase()];
};

Request.prototype.write = function (data, encoding) {
  const frame = this.getFrame();
  return frame.write(data, encoding);
};

Request.prototype.pipe = function (stream, options) {
  const frame = this.getFrame();
  return frame.pipe(stream, options);
};

Request.prototype.end = function (data) {
  const frame = this.getFrame();
  frame.end(data);
};

Request.prototype.abort = function (data) {
  const frame = this.getFrame();
  frame.close(NGHTTP2_CANCEL);
  this.session.destroy();
};

exports.setProtocol = setProtocol;
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["Stream","require","util","net","tls","parse","process","semverGte","http2","version","Error","constants","HTTP2_HEADER_PATH","HTTP2_HEADER_STATUS","HTTP2_HEADER_METHOD","HTTP2_HEADER_AUTHORITY","HTTP2_HEADER_HOST","HTTP2_HEADER_SET_COOKIE","NGHTTP2_CANCEL","setProtocol","protocol","request","options","Request","call","defaultPort","defaultHost","port","host","method","path","sessionOptions","socketPath","createConnection","createUnixConnection","bind","_headers","session","connect","setHeader","on","error","emit","inherits","prototype","authority","ALPNProtocols","servername","allowHalfOpen","setNoDelay","bool","getFrame","frame","headers","mapToHttp2Header","Object","assign","once","flags","mapToHttpHeader","statusCode","status","_headerSent","close","keys","http2Headers","key","value","toLowerCase","Array","isArray","test","name","getHeader","write","data","encoding","pipe","stream","end","abort","destroy","exports"],"sources":["../../src/node/http2wrapper.js"],"sourcesContent":["const Stream = require('stream');\nconst util = require('util');\nconst net = require('net');\nconst tls = require('tls');\n// eslint-disable-next-line node/no-deprecated-api\nconst { parse } = require('url');\nconst process = require('process');\nconst semverGte = require('semver/functions/gte');\n\nlet http2;\n\nif (semverGte(process.version, 'v10.10.0')) http2 = require('http2');\nelse\n  throw new Error('superagent: this version of Node.js does not support http2');\n\nconst {\n  HTTP2_HEADER_PATH,\n  HTTP2_HEADER_STATUS,\n  HTTP2_HEADER_METHOD,\n  HTTP2_HEADER_AUTHORITY,\n  HTTP2_HEADER_HOST,\n  HTTP2_HEADER_SET_COOKIE,\n  NGHTTP2_CANCEL\n} = http2.constants;\n\nfunction setProtocol(protocol) {\n  return {\n    request(options) {\n      return new Request(protocol, options);\n    }\n  };\n}\n\nfunction Request(protocol, options) {\n  Stream.call(this);\n  const defaultPort = protocol === 'https:' ? 443 : 80;\n  const defaultHost = 'localhost';\n  const port = options.port || defaultPort;\n  const host = options.host || defaultHost;\n\n  delete options.port;\n  delete options.host;\n\n  this.method = options.method;\n  this.path = options.path;\n  this.protocol = protocol;\n  this.host = host;\n\n  delete options.method;\n  delete options.path;\n\n  const sessionOptions = { ...options };\n  if (options.socketPath) {\n    sessionOptions.socketPath = options.socketPath;\n    sessionOptions.createConnection = this.createUnixConnection.bind(this);\n  }\n\n  this._headers = {};\n\n  const session = http2.connect(`${protocol}//${host}:${port}`, sessionOptions);\n  this.setHeader('host', `${host}:${port}`);\n\n  session.on('error', (error) => this.emit('error', error));\n\n  this.session = session;\n}\n\n/**\n * Inherit from `Stream` (which inherits from `EventEmitter`).\n */\nutil.inherits(Request, Stream);\n\nRequest.prototype.createUnixConnection = function (authority, options) {\n  switch (this.protocol) {\n    case 'http:':\n      return net.connect(options.socketPath);\n    case 'https:':\n      options.ALPNProtocols = ['h2'];\n      options.servername = this.host;\n      options.allowHalfOpen = true;\n      return tls.connect(options.socketPath, options);\n    default:\n      throw new Error('Unsupported protocol', this.protocol);\n  }\n};\n\nRequest.prototype.setNoDelay = function (bool) {\n  // We can not use setNoDelay with HTTP/2.\n  // Node 10 limits http2session.socket methods to ones safe to use with HTTP/2.\n  // See also https://nodejs.org/api/http2.html#http2_http2session_socket\n};\n\nRequest.prototype.getFrame = function () {\n  if (this.frame) {\n    return this.frame;\n  }\n\n  const method = {\n    [HTTP2_HEADER_PATH]: this.path,\n    [HTTP2_HEADER_METHOD]: this.method\n  };\n\n  let headers = this.mapToHttp2Header(this._headers);\n\n  headers = Object.assign(headers, method);\n\n  const frame = this.session.request(headers);\n\n  frame.once('response', (headers, flags) => {\n    headers = this.mapToHttpHeader(headers);\n    frame.headers = headers;\n    frame.statusCode = headers[HTTP2_HEADER_STATUS];\n    frame.status = frame.statusCode;\n    this.emit('response', frame);\n  });\n\n  this._headerSent = true;\n\n  frame.once('drain', () => this.emit('drain'));\n  frame.on('error', (error) => this.emit('error', error));\n  frame.on('close', () => this.session.close());\n\n  this.frame = frame;\n  return frame;\n};\n\nRequest.prototype.mapToHttpHeader = function (headers) {\n  const keys = Object.keys(headers);\n  const http2Headers = {};\n  for (let key of keys) {\n    let value = headers[key];\n    key = key.toLowerCase();\n    switch (key) {\n      case HTTP2_HEADER_SET_COOKIE:\n        value = Array.isArray(value) ? value : [value];\n        break;\n      default:\n        break;\n    }\n\n    http2Headers[key] = value;\n  }\n\n  return http2Headers;\n};\n\nRequest.prototype.mapToHttp2Header = function (headers) {\n  const keys = Object.keys(headers);\n  const http2Headers = {};\n  for (let key of keys) {\n    let value = headers[key];\n    key = key.toLowerCase();\n    switch (key) {\n      case HTTP2_HEADER_HOST:\n        key = HTTP2_HEADER_AUTHORITY;\n        value = /^http:\\/\\/|^https:\\/\\//.test(value)\n          ? parse(value).host\n          : value;\n        break;\n      default:\n        break;\n    }\n\n    http2Headers[key] = value;\n  }\n\n  return http2Headers;\n};\n\nRequest.prototype.setHeader = function (name, value) {\n  this._headers[name.toLowerCase()] = value;\n};\n\nRequest.prototype.getHeader = function (name) {\n  return this._headers[name.toLowerCase()];\n};\n\nRequest.prototype.write = function (data, encoding) {\n  const frame = this.getFrame();\n  return frame.write(data, encoding);\n};\n\nRequest.prototype.pipe = function (stream, options) {\n  const frame = this.getFrame();\n  return frame.pipe(stream, options);\n};\n\nRequest.prototype.end = function (data) {\n  const frame = this.getFrame();\n  frame.end(data);\n};\n\nRequest.prototype.abort = function (data) {\n  const frame = this.getFrame();\n  frame.close(NGHTTP2_CANCEL);\n  this.session.destroy();\n};\n\nexports.setProtocol = 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