Update vendor

vendor/github.com/mattermost/mattermost-server/v6/model/token.go

@@ -0,0 +1,42 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package model
+
+import (
+	"net/http"
+)
+
+const (
+	TokenSize          = 64
+	MaxTokenExipryTime = 1000 * 60 * 60 * 48 // 48 hour
+	TokenTypeOAuth     = "oauth"
+)
+
+type Token struct {
+	Token    string
+	CreateAt int64
+	Type     string
+	Extra    string
+}
+
+func NewToken(tokentype, extra string) *Token {
+	return &Token{
+		Token:    NewRandomString(TokenSize),
+		CreateAt: GetMillis(),
+		Type:     tokentype,
+		Extra:    extra,
+	}
+}
+
+func (t *Token) IsValid() *AppError {
+	if len(t.Token) != TokenSize {
+		return NewAppError("Token.IsValid", "model.token.is_valid.size", nil, "", http.StatusInternalServerError)
+	}
+
+	if t.CreateAt == 0 {
+		return NewAppError("Token.IsValid", "model.token.is_valid.expiry", nil, "", http.StatusInternalServerError)
+	}
+
+	return nil
+}