diff options
Diffstat (limited to 'g4f/Provider/npm/node_modules/undici/lib/websocket/frame.js')
-rw-r--r-- | g4f/Provider/npm/node_modules/undici/lib/websocket/frame.js | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/g4f/Provider/npm/node_modules/undici/lib/websocket/frame.js b/g4f/Provider/npm/node_modules/undici/lib/websocket/frame.js deleted file mode 100644 index d867ad11..00000000 --- a/g4f/Provider/npm/node_modules/undici/lib/websocket/frame.js +++ /dev/null @@ -1,73 +0,0 @@ -'use strict' - -const { maxUnsigned16Bit } = require('./constants') - -/** @type {import('crypto')} */ -let crypto -try { - crypto = require('crypto') -} catch { - -} - -class WebsocketFrameSend { - /** - * @param {Buffer|undefined} data - */ - constructor (data) { - this.frameData = data - this.maskKey = crypto.randomBytes(4) - } - - createFrame (opcode) { - const bodyLength = this.frameData?.byteLength ?? 0 - - /** @type {number} */ - let payloadLength = bodyLength // 0-125 - let offset = 6 - - if (bodyLength > maxUnsigned16Bit) { - offset += 8 // payload length is next 8 bytes - payloadLength = 127 - } else if (bodyLength > 125) { - offset += 2 // payload length is next 2 bytes - payloadLength = 126 - } - - const buffer = Buffer.allocUnsafe(bodyLength + offset) - - // Clear first 2 bytes, everything else is overwritten - buffer[0] = buffer[1] = 0 - buffer[0] |= 0x80 // FIN - buffer[0] = (buffer[0] & 0xF0) + opcode // opcode - - /*! ws. MIT License. Einar Otto Stangvik <einaros@gmail.com> */ - buffer[offset - 4] = this.maskKey[0] - buffer[offset - 3] = this.maskKey[1] - buffer[offset - 2] = this.maskKey[2] - buffer[offset - 1] = this.maskKey[3] - - buffer[1] = payloadLength - - if (payloadLength === 126) { - buffer.writeUInt16BE(bodyLength, 2) - } else if (payloadLength === 127) { - // Clear extended payload length - buffer[2] = buffer[3] = 0 - buffer.writeUIntBE(bodyLength, 4, 6) - } - - buffer[1] |= 0x80 // MASK - - // mask body - for (let i = 0; i < bodyLength; i++) { - buffer[offset + i] = this.frameData[i] ^ this.maskKey[i % 4] - } - - return buffer - } -} - -module.exports = { - WebsocketFrameSend -} |