1 files changed, 0 insertions, 409 deletions
diff --git a/school/node_modules/ws/lib/sender.js b/school/node_modules/ws/lib/sender.js
deleted file mode 100644
index 441171c..0000000
--- a/school/node_modules/ws/lib/sender.js
+++ /dev/null
@@ -1,409 +0,0 @@
-/* eslint no-unused-vars: ["error", { "varsIgnorePattern": "^net|tls$" }] */
-
-'use strict';
-
-const net = require('net');
-const tls = require('tls');
-const { randomFillSync } = require('crypto');
-
-const PerMessageDeflate = require('./permessage-deflate');
-const { EMPTY_BUFFER } = require('./constants');
-const { isValidStatusCode } = require('./validation');
-const { mask: applyMask, toBuffer } = require('./buffer-util');
-
-const mask = Buffer.alloc(4);
-
-/**
- * HyBi Sender implementation.
- */
-class Sender {
-  /**
-   * Creates a Sender instance.
-   *
-   * @param {(net.Socket|tls.Socket)} socket The connection socket
-   * @param {Object} [extensions] An object containing the negotiated extensions
-   */
-  constructor(socket, extensions) {
-    this._extensions = extensions || {};
-    this._socket = socket;
-
-    this._firstFragment = true;
-    this._compress = false;
-
-    this._bufferedBytes = 0;
-    this._deflating = false;
-    this._queue = [];
-  }
-
-  /**
-   * Frames a piece of data according to the HyBi WebSocket protocol.
-   *
-   * @param {Buffer} data The data to frame
-   * @param {Object} options Options object
-   * @param {Number} options.opcode The opcode
-   * @param {Boolean} [options.readOnly=false] Specifies whether `data` can be
-   *     modified
-   * @param {Boolean} [options.fin=false] Specifies whether or not to set the
-   *     FIN bit
-   * @param {Boolean} [options.mask=false] Specifies whether or not to mask
-   *     `data`
-   * @param {Boolean} [options.rsv1=false] Specifies whether or not to set the
-   *     RSV1 bit
-   * @return {Buffer[]} The framed data as a list of `Buffer` instances
-   * @public
-   */
-  static frame(data, options) {
-    const merge = options.mask && options.readOnly;
-    let offset = options.mask ? 6 : 2;
-    let payloadLength = data.length;
-
-    if (data.length >= 65536) {
-      offset += 8;
-      payloadLength = 127;
-    } else if (data.length > 125) {
-      offset += 2;
-      payloadLength = 126;
-    }
-
-    const target = Buffer.allocUnsafe(merge ? data.length + offset : offset);
-
-    target[0] = options.fin ? options.opcode | 0x80 : options.opcode;
-    if (options.rsv1) target[0] |= 0x40;
-
-    target[1] = payloadLength;
-
-    if (payloadLength === 126) {
-      target.writeUInt16BE(data.length, 2);
-    } else if (payloadLength === 127) {
-      target.writeUInt32BE(0, 2);
-      target.writeUInt32BE(data.length, 6);
-    }
-
-    if (!options.mask) return [target, data];
-
-    randomFillSync(mask, 0, 4);
-
-    target[1] |= 0x80;
-    target[offset - 4] = mask[0];
-    target[offset - 3] = mask[1];
-    target[offset - 2] = mask[2];
-    target[offset - 1] = mask[3];
-
-    if (merge) {
-      applyMask(data, mask, target, offset, data.length);
-      return [target];
-    }
-
-    applyMask(data, mask, data, 0, data.length);
-    return [target, data];
-  }
-
-  /**
-   * Sends a close message to the other peer.
-   *
-   * @param {Number} [code] The status code component of the body
-   * @param {String} [data] The message component of the body
-   * @param {Boolean} [mask=false] Specifies whether or not to mask the message
-   * @param {Function} [cb] Callback
-   * @public
-   */
-  close(code, data, mask, cb) {
-    let buf;
-
-    if (code === undefined) {
-      buf = EMPTY_BUFFER;
-    } else if (typeof code !== 'number' || !isValidStatusCode(code)) {
-      throw new TypeError('First argument must be a valid error code number');
-    } else if (data === undefined || data === '') {
-      buf = Buffer.allocUnsafe(2);
-      buf.writeUInt16BE(code, 0);
-    } else {
-      const length = Buffer.byteLength(data);
-
-      if (length > 123) {
-        throw new RangeError('The message must not be greater than 123 bytes');
-      }
-
-      buf = Buffer.allocUnsafe(2 + length);
-      buf.writeUInt16BE(code, 0);
-      buf.write(data, 2);
-    }
-
-    if (this._deflating) {
-      this.enqueue([this.doClose, buf, mask, cb]);
-    } else {
-      this.doClose(buf, mask, cb);
-    }
-  }
-
-  /**
-   * Frames and sends a close message.
-   *
-   * @param {Buffer} data The message to send
-   * @param {Boolean} [mask=false] Specifies whether or not to mask `data`
-   * @param {Function} [cb] Callback
-   * @private
-   */
-  doClose(data, mask, cb) {
-    this.sendFrame(
-      Sender.frame(data, {
-        fin: true,
-        rsv1: false,
-        opcode: 0x08,
-        mask,
-        readOnly: false
-      }),
-      cb
-    );
-  }
-
-  /**
-   * Sends a ping message to the other peer.
-   *
-   * @param {*} data The message to send
-   * @param {Boolean} [mask=false] Specifies whether or not to mask `data`
-   * @param {Function} [cb] Callback
-   * @public
-   */
-  ping(data, mask, cb) {
-    const buf = toBuffer(data);
-
-    if (buf.length > 125) {
-      throw new RangeError('The data size must not be greater than 125 bytes');
-    }
-
-    if (this._deflating) {
-      this.enqueue([this.doPing, buf, mask, toBuffer.readOnly, cb]);
-    } else {
-      this.doPing(buf, mask, toBuffer.readOnly, cb);
-    }
-  }
-
-  /**
-   * Frames and sends a ping message.
-   *
-   * @param {Buffer} data The message to send
-   * @param {Boolean} [mask=false] Specifies whether or not to mask `data`
-   * @param {Boolean} [readOnly=false] Specifies whether `data` can be modified
-   * @param {Function} [cb] Callback
-   * @private
-   */
-  doPing(data, mask, readOnly, cb) {
-    this.sendFrame(
-      Sender.frame(data, {
-        fin: true,
-        rsv1: false,
-        opcode: 0x09,
-        mask,
-        readOnly
-      }),
-      cb
-    );
-  }
-
-  /**
-   * Sends a pong message to the other peer.
-   *
-   * @param {*} data The message to send
-   * @param {Boolean} [mask=false] Specifies whether or not to mask `data`
-   * @param {Function} [cb] Callback
-   * @public
-   */
-  pong(data, mask, cb) {
-    const buf = toBuffer(data);
-
-    if (buf.length > 125) {
-      throw new RangeError('The data size must not be greater than 125 bytes');
-    }
-
-    if (this._deflating) {
-      this.enqueue([this.doPong, buf, mask, toBuffer.readOnly, cb]);
-    } else {
-      this.doPong(buf, mask, toBuffer.readOnly, cb);
-    }
-  }
-
-  /**
-   * Frames and sends a pong message.
-   *
-   * @param {Buffer} data The message to send
-   * @param {Boolean} [mask=false] Specifies whether or not to mask `data`
-   * @param {Boolean} [readOnly=false] Specifies whether `data` can be modified
-   * @param {Function} [cb] Callback
-   * @private
-   */
-  doPong(data, mask, readOnly, cb) {
-    this.sendFrame(
-      Sender.frame(data, {
-        fin: true,
-        rsv1: false,
-        opcode: 0x0a,
-        mask,
-        readOnly
-      }),
-      cb
-    );
-  }
-
-  /**
-   * Sends a data message to the other peer.
-   *
-   * @param {*} data The message to send
-   * @param {Object} options Options object
-   * @param {Boolean} [options.compress=false] Specifies whether or not to
-   *     compress `data`
-   * @param {Boolean} [options.binary=false] Specifies whether `data` is binary
-   *     or text
-   * @param {Boolean} [options.fin=false] Specifies whether the fragment is the
-   *     last one
-   * @param {Boolean} [options.mask=false] Specifies whether or not to mask
-   *     `data`
-   * @param {Function} [cb] Callback
-   * @public
-   */
-  send(data, options, cb) {
-    const buf = toBuffer(data);
-    const perMessageDeflate = this._extensions[PerMessageDeflate.extensionName];
-    let opcode = options.binary ? 2 : 1;
-    let rsv1 = options.compress;
-
-    if (this._firstFragment) {
-      this._firstFragment = false;
-      if (rsv1 && perMessageDeflate) {
-        rsv1 = buf.length >= perMessageDeflate._threshold;
-      }
-      this._compress = rsv1;
-    } else {
-      rsv1 = false;
-      opcode = 0;
-    }
-
-    if (options.fin) this._firstFragment = true;
-
-    if (perMessageDeflate) {
-      const opts = {
-        fin: options.fin,
-        rsv1,
-        opcode,
-        mask: options.mask,
-        readOnly: toBuffer.readOnly
-      };
-
-      if (this._deflating) {
-        this.enqueue([this.dispatch, buf, this._compress, opts, cb]);
-      } else {
-        this.dispatch(buf, this._compress, opts, cb);
-      }
-    } else {
-      this.sendFrame(
-        Sender.frame(buf, {
-          fin: options.fin,
-          rsv1: false,
-          opcode,
-          mask: options.mask,
-          readOnly: toBuffer.readOnly
-        }),
-        cb
-      );
-    }
-  }
-
-  /**
-   * Dispatches a data message.
-   *
-   * @param {Buffer} data The message to send
-   * @param {Boolean} [compress=false] Specifies whether or not to compress
-   *     `data`
-   * @param {Object} options Options object
-   * @param {Number} options.opcode The opcode
-   * @param {Boolean} [options.readOnly=false] Specifies whether `data` can be
-   *     modified
-   * @param {Boolean} [options.fin=false] Specifies whether or not to set the
-   *     FIN bit
-   * @param {Boolean} [options.mask=false] Specifies whether or not to mask
-   *     `data`
-   * @param {Boolean} [options.rsv1=false] Specifies whether or not to set the
-   *     RSV1 bit
-   * @param {Function} [cb] Callback
-   * @private
-   */
-  dispatch(data, compress, options, cb) {
-    if (!compress) {
-      this.sendFrame(Sender.frame(data, options), cb);
-      return;
-    }
-
-    const perMessageDeflate = this._extensions[PerMessageDeflate.extensionName];
-
-    this._bufferedBytes += data.length;
-    this._deflating = true;
-    perMessageDeflate.compress(data, options.fin, (_, buf) => {
-      if (this._socket.destroyed) {
-        const err = new Error(
-          'The socket was closed while data was being compressed'
-        );
-
-        if (typeof cb === 'function') cb(err);
-
-        for (let i = 0; i < this._queue.length; i++) {
-          const callback = this._queue[i][4];
-
-          if (typeof callback === 'function') callback(err);
-        }
-
-        return;
-      }
-
-      this._bufferedBytes -= data.length;
-      this._deflating = false;
-      options.readOnly = false;
-      this.sendFrame(Sender.frame(buf, options), cb);
-      this.dequeue();
-    });
-  }
-
-  /**
-   * Executes queued send operations.
-   *
-   * @private
-   */
-  dequeue() {
-    while (!this._deflating && this._queue.length) {
-      const params = this._queue.shift();
-
-      this._bufferedBytes -= params[1].length;
-      Reflect.apply(params[0], this, params.slice(1));
-    }
-  }
-
-  /**
-   * Enqueues a send operation.
-   *
-   * @param {Array} params Send operation parameters.
-   * @private
-   */
-  enqueue(params) {
-    this._bufferedBytes += params[1].length;
-    this._queue.push(params);
-  }
-
-  /**
-   * Sends a frame.
-   *
-   * @param {Buffer[]} list The frame to send
-   * @param {Function} [cb] Callback
-   * @private
-   */
-  sendFrame(list, cb) {
-    if (list.length === 2) {
-      this._socket.cork();
-      this._socket.write(list[0]);
-      this._socket.write(list[1], cb);
-      this._socket.uncork();
-    } else {
-      this._socket.write(list[0], cb);
-    }
-  }
-}
-
-module.exports = Sender;