Add dependencies/vendor (whatsapp)

vendor/go.mau.fi/whatsmeow/socket/constants.go

@@ -0,0 +1,40 @@
+// Copyright (c) 2021 Tulir Asokan
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+// Package socket implements a subset of the Noise protocol framework on top of websockets as used by WhatsApp.
+//
+// There shouldn't be any need to manually interact with this package.
+// The Client struct in the top-level whatsmeow package handles everything.
+package socket
+
+import "errors"
+
+const (
+	// Origin is the Origin header for all WhatsApp websocket connections
+	Origin = "https://web.whatsapp.com"
+	// URL is the websocket URL for the new multidevice protocol
+	URL = "wss://web.whatsapp.com/ws/chat"
+)
+
+const (
+	NoiseStartPattern = "Noise_XX_25519_AESGCM_SHA256\x00\x00\x00\x00"
+
+	WADictVersion = 2
+	WAMagicValue  = 5
+)
+
+var WAConnHeader = []byte{'W', 'A', WAMagicValue, WADictVersion}
+
+const (
+	FrameMaxSize    = 2 << 23
+	FrameLengthSize = 3
+)
+
+var (
+	ErrFrameTooLarge     = errors.New("frame too large")
+	ErrSocketClosed      = errors.New("frame socket is closed")
+	ErrSocketAlreadyOpen = errors.New("frame socket is already open")
+)